Durvalumab

IMFINZI is a programmed death-ligand 1 (PD-L1) blocking antibody indicated:

• in combination with platinum-containing chemotherapy as neoadjuvant treatment, followed by IMFINZI continued as a single agent as adjuvant treatment after surgery, for the treatment of adult patients with resectable (tumors ≥ 4 cm and/or node positive) non-small cell lung cancer (NSCLC) and no known epidermal growth factor receptor (EGFR) mutations or anaplastic lymphoma kinase (ALK) rearrangements. ( 1.1 )
• as a single agent, for the treatment of adult patients with unresectable, Stage III NSCLC whose disease has not progressed following concurrent platinum-based chemotherapy and radiation therapy. ( 1.1 )
• in combination with tremelimumab-actl and platinum-based chemotherapy, for the treatment of adult patients with metastatic NSCLC with no sensitizing EGFR mutations or ALK genomic tumor aberrations. ( 1.1 )
• as a single agent, for the treatment of adult patients with limited-stage small cell lung cancer (LS-SCLC) whose disease has not progressed following concurrent platinum-based chemotherapy and radiation therapy. ( 1.2 )
• in combination with etoposide and either carboplatin or cisplatin, as first-line treatment of adult patients with extensive-stage small cell lung cancer (ES-SCLC). ( 1.2 )
• in combination with gemcitabine and cisplatin, as treatment of adult patients with locally advanced or metastatic biliary tract cancer (BTC). ( 1.3 )
• in combination with tremelimumab-actl, for the treatment of adult patients with unresectable hepatocellular carcinoma (uHCC). ( 1.4 )
• in combination with carboplatin and paclitaxel followed by IMFINZI as a single agent, for the treatment of adult patients with primary advanced or recurrent endometrial cancer that is mismatch repair deficient (dMMR) as determined by an FDA-authorized test. ( 1.5 , 2.1 )
• in combination with Bacillus Calmette-Guérin (BCG) for the treatment of adult patients with BCG-naive, high-risk non-muscle-invasive bladder cancer (NMIBC). ( 1.6 )
• in combination with gemcitabine and cisplatin as neoadjuvant treatment, followed by single agent IMFINZI as adjuvant treatment following radical cystectomy, for the treatment of adult patients with muscle invasive bladder cancer (MIBC). ( 1.6 )
• in combination with fluorouracil, leucovorin, oxaliplatin, and docetaxel (FLOT) chemotherapy as neoadjuvant and adjuvant treatment, followed by single agent IMFINZI, for the treatment of adult patients with resectable gastric or gastroesophageal junction adenocarcinoma (GC/GEJC). ( 1.7 )

1.1 Non-Small Cell Lung Cancer

• IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment, followed by IMFINZI continued as a single agent as adjuvant treatment after surgery, is indicated for the treatment of adult patients with resectable (tumors ≥ 4 cm and/or node positive) non-small cell lung cancer (NSCLC) and no known epidermal growth factor receptor (EGFR) mutations or anaplastic lymphoma kinase (ALK) rearrangements.
• IMFINZI, as a single agent, is indicated for the treatment of adult patients with unresectable Stage III NSCLC whose disease has not progressed following concurrent platinum-based chemotherapy and radiation therapy (cCRT).
• IMFINZI, in combination with tremelimumab-actl and platinum-based chemotherapy, is indicated for the treatment of adult patients with metastatic NSCLC with no sensitizing EGFR mutations or ALK genomic tumor aberrations.

1.2 Small Cell Lung Cancer

• IMFINZI, as a single agent, is indicated for the treatment of adult patients with limited-stage small cell lung cancer (LS-SCLC) whose disease has not progressed following concurrent platinum-based chemotherapy and radiation therapy (cCRT).
• IMFINZI, in combination with etoposide and either carboplatin or cisplatin, is indicated for the first-line treatment of adult patients with extensive-stage small cell lung cancer (ES-SCLC).

1.3 Biliary Tract Cancers IMFINZI, in combination with gemcitabine and cisplatin, is indicated for the treatment of adult patients with locally advanced or metastatic biliary tract cancer (BTC).

1.4 Hepatocellular Carcinoma IMFINZI, in combination with tremelimumab-actl, is indicated for the treatment of adult patients with unresectable hepatocellular carcinoma (uHCC).

1.5 Endometrial Cancer IMFINZI, in combination with carboplatin and paclitaxel followed by IMFINZI as a single agent, is indicated for the treatment of adult patients with primary advanced or recurrent endometrial cancer that is mismatch repair deficient (dMMR) as determined by an FDA-authorized test [see Dosage and Administration (2.1) ] .

1.6 Bladder Cancer

• IMFINZI in combination with Bacillus Calmette-Guérin (BCG) is indicated for the treatment of adult patients with BCG-naive, high-risk non-muscle-invasive bladder cancer (NMIBC).
• IMFINZI in combination with gemcitabine and cisplatin as neoadjuvant treatment, followed by single agent IMFINZI as adjuvant treatment following radical cystectomy, is indicated for the treatment of adult patients with muscle invasive bladder cancer (MIBC). 1. 7 Gastric or gastroesophageal junction adeno carcinoma IMFINZI in combination with fluorouracil, leucovorin, oxaliplatin and docetaxel (FLOT) as neoadjuvant and adjuvant treatment, followed by single-agent IMFINZI, is indicated for the treatment of adult patients with resectable gastric or gastroesophageal junction adenocarcinoma (GC/GEJC).

• Administer IMFINZI as an intravenous infusion over 60 minutes after dilution. ( 2.4 )
• Neoadjuvant and Adjuvant Treatment of Resectable NSCLC: ∘ Weight ≥ 30 kg: Neoadjuvant : IMFINZI 1,500 mg in combination with chemotherapy every 3 weeks for up to 4 cycles prior to surgery. Adjuvant : IMFINZI 1,500 mg as a single agent every 4 weeks for up to 12 cycles after surgery. ( 2.2 ) ∘ Weight < 30 kg Neoadjuvant : IMFINZI 20 mg/kg every 3 weeks in combination with chemotherapy for up to 4 cycles prior to surgery. Adjuvant : IMFINZI 20 mg/kg every 4 weeks as a single agent for up to 12 cycles after surgery. ( 2.2 )
• Unresectable Stage III NSCLC, following concurrent platinum-based chemotherapy and radiation therapy: ∘ Weight ≥ 30 kg: IMFINZI 10 mg/kg every 2 weeks or 1,500 mg every 4 weeks. ( 2.2 ) ∘ Weight < 30 kg: IMFINZI 10 mg/kg every 2 weeks. ( 2.2 )
• Metastatic NSCLC: ∘ Weight ≥ 30 kg: IMFINZI 1,500 mg every 3 weeks in combination with tremelimumab-actl 75 mg and platinum-based chemotherapy for 4 cycles, and then administer IMFINZI 1,500 mg every 4 weeks as a single agent with histology-based pemetrexed maintenance therapy every 4 weeks, and a fifth dose of tremelimumab-actl 75 mg in combination with IMFINZI dose 6 at week 16. ( 2.2 ) ∘ Weight < 30 kg: IMFINZI 20 mg/kg every 3 weeks in combination with tremelimumab-actl 1 mg/kg and platinum-based chemotherapy, and then administer IMFINZI 20 mg/kg every 4 weeks as a single agent with histology-based pemetrexed therapy every 4 weeks, and a fifth dose of tremelimumab-actl 1 mg/kg in combination with IMFINZI dose 6 at week 16. ( 2.2 )
• LS-SCLC, following concurrent platinum-based chemotherapy and radiation therapy: ∘ Weight ≥ 30 kg: 1,500 mg every 4 weeks. ( 2.2 ) ∘ Weight < 30 kg: 20 mg/kg every 4 weeks. ( 2.2 )
• ES-SCLC: ∘ Weight ≥ 30 kg: With etoposide and either carboplatin or cisplatin, administer IMFINZI 1,500 mg every 3 weeks in combination with chemotherapy, and then 1,500 mg every 4 weeks as a single agent. ( 2.2 ) ∘ Weight < 30 kg: With etoposide and either carboplatin or cisplatin, administer IMFINZI 20 mg/kg every 3 weeks in combination with chemotherapy, and then 10 mg/kg every 2 weeks as a single agent. ( 2.2 )
• BTC: ∘ Weight ≥ 30 kg: administer IMFINZI 1,500 mg every 3 weeks in combination with chemotherapy, and then 1,500 mg every 4 weeks as a single agent. ( 2.2 ) ∘ Weight < 30 kg: administer IMFINZI 20 mg/kg every 3 weeks in combination with chemotherapy, and then 20 mg/kg every 4 weeks as a single agent. ( 2.2 )
• uHCC: ∘ Weight ≥ 30 kg: IMFINZI 1,500 mg in combination with tremelimumab-actl 300 mg as a single dose at Cycle 1/Day 1, followed by IMFINZI as a single agent every 4 weeks. ( 2.2 ) ∘ Weight < 30 kg: IMFINZI 20 mg/kg in combination with tremelimumab-actl 4 mg/kg as a single dose at Cycle 1/Day 1, followed by IMFINZI as a single agent every 4 weeks. ( 2.2 )
• dMMR endometrial cancer: ∘ Weight ≥ 30 kg: IMFINZI 1,120 mg in combination with carboplatin and paclitaxel every 3 weeks for 6 cycles, followed by IMFINZI 1,500 mg every 4 weeks as a single agent. ( 2.1 , 2.2 ) ∘ Weight < 30 kg: IMFINZI 15 mg/kg in combination with carboplatin and paclitaxel every 3 weeks for 6 cycles, followed by IMFINZI 20 mg/kg every 4 weeks as a single agent. ( 2.1 , 2.2 )
• NMIBC ∘ Weight ≥ 30 kg: IMFINZI 1,500 mg every 4 weeks for 13 cycles in combination with BCG induction and maintenance. ( 2.2 ). ∘ Weight < 30 kg: IMFINZI 20 mg/kg every 4 weeks for 13 cycles in combination with BCG induction and maintenance. (2.2)
• MIBC: ∘ Weight ≥ 30 kg: Neoadjuvant: IMFINZI 1,500 mg in combination with gemcitabine and cisplatin every 3 weeks for 4 cycles prior to surgery. Adjuvant: IMFINZI 1,500 mg every 4 weeks as a single agent for up to 8 cycles after surgery. ( 2.2 ) ∘ Weight < 30 kg: Neoadjuvant: IMFINZI 20 mg/kg in combination with gemcitabine and cisplatin every 3 weeks for 4 cycles prior to surgery. Adjuvant: IMFINZI 20 mg/kg every 4 weeks as a single agent for up to 8 cycles after surgery. ( 2.2 )
• Resectable GC/GEJC ∘ Weight ≥ 30 kg: Neoadjuvant: IMFINZI 1,500 mg in combination with FLOT chemotherapy every 4 weeks for up to 2 cycles prior to surgery. Adjuvant: IMFINZI 1,500 mg in combination with FLOT chemotherapy, every 4 weeks for up to 2 cycles and then 1,500 mg as a single agent every 4 weeks for up to 10 cycles, for a total of up to 12 cycles after surgery. ( 2.2 ) o Weight < 30 kg: Neoadjuvant: IMFINZI 20 mg/kg in combination with FLOT chemotherapy every 4 weeks for up to 2 cycles prior to surgery. Adjuvant: IMFINZI 20 mg/kg in combination with FLOT chemotherapy, every 4 weeks for up to 2 cycles and then 20 mg/kg as a single agent every 4 weeks for up to 10 cycles, for a total of up to 12 cycles after surgery. ( 2.2 )
• See full Prescribing Information for preparation and administration instructions and dosage modifications for adverse reactions.

2.1 Patient Selection Advanced or Recurrent dMMR Endometrial Cancer Select patients for treatment based on the presence of dMMR in tumor specimens [see Clinical Studies (14.5) ]. Information on FDA-authorized tests for the detection of dMMR status in endometrial cancer is available at https://www.fda.gov/companiondiagnostics .

2.2 Recommended Dosage The recommended dosages for IMFINZI as a single agent and IMFINZI in combination with other therapeutic agents are presented in Table 1. The recommended dosage schedule and regimens for IMFINZI for the treatment of metastatic NSCLC are provided in Tables 2 and 3 [see Indications and Usage (1.1) ]. Administer IMFINZI as a 60 minute intravenous infusion after dilution [ see Dosage and Administration (2.3) ]. Table 1. Recommended Dosages of IMFINZI Indication Recommended IMFINZI Dosage Duration of Therapy Neoadjuvant and Adjuvant Treatment of Resectable NSCLC Patients with a body weight of ≥ 30 kg:

• Neoadjuvant: IMFINZI 1,500 mg in combination with chemotherapy Administer IMFINZI prior to chemotherapy on the same day. Refer to the Prescribing Information for the agent administered in combination with IMFINZI for recommended dosage information, as appropriate. every 3 weeks for up to 4 cycles prior to surgery
• Adjuvant: IMFINZI 1,500 mg as a single agent every 4 weeks for up to 12 cycles after surgery. Patients with a body weight of < 30 kg:
• Neoadjuvant: IMFINZI 20 mg/kg every 3 weeks in combination with chemotherapy for up to 4 cycles prior to surgery.
• Adjuvant: IMFINZI 20 mg/kg every 4 weeks for up to 12 cycles as a single agent after surgery. Until disease progression that precludes definitive surgery, recurrence, unacceptable toxicity, or a maximum of 12 cycles after surgery Unresectable Stage III NSCLC Following concurrent platinum-based chemotherapy and radiation therapy: Patients with a body weight of ≥ 30 kg:
• 10 mg/kg every 2 weeks or 1,500 mg every 4 weeks Patients with a body weight of < 30 kg:
• 10 mg/kg every 2 weeks Until disease progression, unacceptable toxicity, or a maximum of 12 months Limited Stage SCLC Following concurrent platinum-based chemotherapy and radiation therapy: Patients with a body weight of ≥ 30 kg:
• 1,500 mg every 4 weeks Patients with a body weight of < 30 kg:
• 20 mg/kg every 4 weeks Until disease progression, unacceptable toxicity, or a maximum of 24 months Extensive Stage SCLC Patients with a body weight of ≥ 30 kg:
• 1,500 mg in combination with chemotherapy every 3 weeks (21 days) for 4 cycles, followed by 1,500 mg every 4 weeks as a single agent Patients with a body weight of < 30 kg:
• 20 mg/kg in combination with chemotherapy every 3 weeks (21 days) for 4 cycles, followed by 10 mg/kg every 2 weeks as a single agent Until disease progression or until unacceptable toxicity BTC Patients with a body weight of ≥ 30 kg:
• 1,500 mg in combination with chemotherapy every 3 weeks (21 days) up to 8 cycles followed by 1,500 mg every 4 weeks as a single agent Patients with a body weight of < 30 kg:
• 20 mg/kg in combination with chemotherapy every 3 weeks (21 days) up to 8 cycles, followed by 20 mg/kg every 4 weeks as a single agent Until disease progression or until unacceptable toxicity uHCC Patients with a body weight of ≥ 30 kg:
• IMFINZI 1,500 mg following a single dose of tremelimumab-actl Administer tremelimumab-actl prior to IMFINZI on the same day. When tremelimumab-actl is administered in combination with IMFINZI, refer to the Prescribing Information for tremelimumab-actl dosing information. 300 mg at Day 1 of Cycle 1;
• Continue IMFINZI 1,500 mg as a single agent every 4 weeks Patients with a body weight of < 30 kg:
• IMFINZI 20 mg/kg following a single dose of tremelimumab-actl 4 mg/kg at Day 1 of Cycle 1;
• Continue IMFINZI 20 mg/kg as a single agent every 4 weeks After Cycle 1 of combination therapy, administer IMFINZI as a single agent every 4 weeks until disease progression or unacceptable toxicity dMMR endometrial cancer Patients with a body weight of ≥ 30 kg:
• IMFINZI 1,120 mg in combination with carboplatin and paclitaxel every 3 weeks (21 days) for 6 cycles, followed by IMFINZI 1,500 mg every 4 weeks as a single agent Patients with a body weight of < 30 kg:
• IMFINZI 15 mg/kg in combination with carboplatin and paclitaxel every 3 weeks (21 days) for 6 cycles, followed by IMFINZI 20 mg/kg every 4 weeks as a single agent Until disease progression or unacceptable toxicity BCG-Naïve, High-Risk NMIBC Patients with a body weight of ≥ 30 kg:
• IMFINZI 1,500 mg every 4 weeks (28 days) for 13 cycles in combination with BCG Administer IMFINZI prior to BCG if given on the same day. Refer to the Prescribing Information for BCG dosing information. induction and maintenance Patients with a body weight of < 30 kg:
• IMFINZI 20 mg/kg every 4 weeks (28 days) for 13 cycles in combination with BCG induction and maintenance Until recurrence of high-risk disease, disease progression, unacceptable toxicity, or a maximum of 13 cycles Neoadjuvant and Adjuvant Treatment of MIBC Patients with a body weight of ≥30 kg:
• Neoadjuvant: 1,500 mg in combination with gemcitabine and cisplatin every 3 weeks for 4 cycles prior to surgery
• Adjuvant: IMFINZI 1,500 mg as a single agent every 4 weeks for up to 8 cycles after surgery Patients with a body weight of < 30 kg:
• Neoadjuvant: 20 mg/kg in combination with gemcitabine and cisplatin every 3 weeks for 4 cycles prior to surgery
• Adjuvant: IMFINZI 20 mg/kg as a single agent every 4 weeks for up to 8 cycles after surgery Until disease progression that precludes definitive surgery, recurrence, or unacceptable toxicity or a maximum of 8 cycles after surgery Neoadjuvant and Adjuvant Treatment of Resectable GC/GEJC Patients with a body weight of ≥ 30 kg:
• Neoadjuvant: IMFINZI 1,500 mg every 4 weeks with FLOT FLOT chemotherapy is administered on days 1 and 15 of each 4 week cycle [See Clinical Studies ( 14.7 )] . for up to 2 cycles prior to surgery
• Adjuvant: IMFINZI 1,500 mg every 4 weeks with FLOT for up to 2 cycles, followed by IMFINZI 1,500 mg as a single agent every 4 weeks for up to 10 cycles Patients with a body weight of < 30 kg:
• Neoadjuvant: IMFINZI 20 mg/kg every 4 weeks with FLOT for up to 2 cycles prior to surgery
• Adjuvant: IMFINZI 20 mg/kg every 4 weeks with FLOT for up to 2 cycles, followed by IMFINZI 20 mg/kg as a single agent every 4 weeks for up to 10 cycles Neoadjuvant: Until disease progression that precludes definitive surgery or unacceptable toxicity IMFINZI in Combination with Tremelimumab-actl and Platinum-Based Chemotherapy The recommended dosage schedule and regimens for IMFINZI for the treatment of metastatic NSCLC are provided in Tables 2 and 3. Weigh patients prior to each infusion. Calculate the appropriate dose using Table 3 below based on the patient’s weight and tumor histology. Table 2. Recommended Dosage Schedule for Metastatic NSCLC Week continue IMFINZI until disease progression or intolerable toxicity. note the dosing interval change from every 3 weeks to every 4 weeks starting at cycle 5. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Cycle: 1 2 3 4 5 6 7 8 IMFINZI intravenous infusion over 60 minutes [see Dosage and Administration (2.4) ] . X X X X X X X X Tremelimumab-actl if patients receive fewer than 4 cycles of platinum-based chemotherapy, the remaining cycles of tremelimumab-actl (up to a total of 5) should be given after the platinum-based chemotherapy phase, in combination with IMFINZI, every 4 weeks. X X X X X Chemotherapy X X X X X optional pemetrexed therapy from week 12 until disease progression or intolerable toxicity for patients with non-squamous disease who received treatment with pemetrexed and carboplatin/cisplatin. X X X Table 3. Recommended Regimen and Dosage for Metastatic NSCLC Tumor Histology Patient Weight IMFINZI Dosage Tremelimumab-actl Dosage Refer to the Prescribing Information for dosing information. Platinum-based Chemotherapy Regimen Non-Squamous ≥ 30 kg 1,500 mg 75 mg
• carboplatin & nab-paclitaxel OR
• carboplatin or cisplatin & pemetrexed < 30 kg 20 mg/kg 1 mg/kg Squamous ≥ 30 kg 1,500 mg 75 mg
• carboplatin & nab-paclitaxel OR
• carboplatin or cisplatin & gemcitabine < 30 kg 20 mg/kg 1 mg/kg 2.3 Dosage Modifications for Adverse Reactions No dose reduction for IMFINZI is recommended. In general, withhold IMFINZI for severe (Grade 3) immune-mediated adverse reactions. Permanently discontinue IMFINZI for life-threatening (Grade 4) immune-mediated adverse reactions, recurrent severe (Grade 3) immune-mediated reactions that require systemic immunosuppressive treatment, or an inability to reduce corticosteroid dose to 10 mg or less of prednisone or equivalent per day within 12 weeks of initiating corticosteroids. Dosage modifications for IMFINZI or IMFINZI in combination with tremelimumab-actl or chemotherapy for adverse reactions that require management different from these general guidelines are summarized in Table 4. Table 4. Recommended Dosage Modifications for Adverse Reactions Adverse Reaction Severity Based on National Cancer Institute Common Terminology Criteria for Adverse Events, version 4.03. Dosage Modification Immune-Mediated Adverse Reactions [see Warnings and Precautions (5.1) ] Pneumonitis Grade 2 Withhold Resume in patients with complete or partial resolution (Grade 0 to 1) after corticosteroid taper. Permanently discontinue if no complete or partial resolution within 12 weeks of initiating corticosteroids or an inability to reduce corticosteroid dose to 10 mg of prednisone or less per day (or equivalent) within 12 weeks of initiating corticosteroids. Grade 3 or 4 Permanently discontinue Colitis Grade 2 Withhold Grade 3 Withhold or permanently discontinue Permanently discontinue IMFINZI for Grade 3 colitis when administered as part of a tremelimumab-actl containing regimen. Grade 4 Permanently discontinue Intestinal perforation Any grade Permanently discontinue Hepatitis with no tumor involvement of the liver ALT or AST increases to more than 3 and up to 8 times the ULN or total bilirubin increases to more than 1.5 and up to 3 times ULN Withhold ALT or AST increases to more than 8 times ULN or total bilirubin increases to more than 3 times the ULN Permanently discontinue Hepatitis with tumor involvement of the liver If AST and ALT are less than or equal to ULN at baseline in patients with liver involvement, withhold or permanently discontinue IMFINZI based on recommendations for hepatitis with no liver involvement. AST or ALT is more than 1 and up to 3 times ULN at baseline and increases to more than 5 and up to 10 times ULN or AST or ALT is more than 3 and up to 5 times ULN at baseline and increases to more than 8 and up to 10 times ULN Withhold AST or ALT increases to more than 10 times ULN or total bilirubin increases to more than 3 times ULN Permanently discontinue Endocrinopathies Grade 3 or 4 Withhold until clinically stable or permanently discontinue depending on severity Nephritis with Renal Dysfunction Grade 2 or 3 increased blood creatinine Withhold Grade 4 increased blood creatinine Permanently discontinue Exfoliative Dermatologic Conditions Suspected SJS, TEN, or DRESS Withhold Confirmed SJS, TEN, or DRESS Permanently discontinue Myocarditis Grade 2, 3, or 4 Permanently discontinue Neurological Toxicities Grade 2 Withhold Grade 3 or 4 Permanently discontinue Other Adverse Reactions Infusion-related reactions [see Warnings and Precautions (5.2) ] Grade 1 or 2 Interrupt or slow the rate of infusion Grade 3 or 4 Permanently discontinue ALT = alanine aminotransferase, AST = aspartate aminotransferase, DRESS = Drug Rash with Eosinophilia and Systemic Symptoms, SJS = Stevens Johnson Syndrome, TEN = toxic epidermal necrolysis, ULN = upper limit normal.

2.4 Preparation and Administration Preparation

• Visually inspect drug product for particulate matter and discoloration prior to administration, whenever solution and container permit. Discard the vial if the solution is cloudy, discolored, or visible particles are observed.
• Do not shake the vial.
• Withdraw the required volume from the vial(s) of IMFINZI and transfer into an intravenous bag containing 0.9% Sodium Chloride Injection, USP or 5% Dextrose Injection, USP. Mix diluted solution by gentle inversion. Do not shake the solution. The final concentration of the diluted solution should be between 1 mg/mL and 15 mg/mL.
• Discard partially used or empty vials of IMFINZI. Storage of Infusion Solution
• IMFINZI does not contain a preservative.
• Administer infusion solution immediately once prepared. If the infusion solution is not administered immediately and needs to be stored, the time from preparation until the completion of the infusion should not exceed: ∘ 28 days in a refrigerator at 2°C to 8°C (36°F to 46°F) ∘ 8 hours at room temperature up to 25°C (77°F)
• Do not freeze.
• Do not shake. Administration
• Administer infusion solution intravenously over 60 minutes through an intravenous line containing a sterile, low-protein binding 0.2 or 0.22 micron in-line filter.
• Use separate infusion bags and filters for each drug product. IMFINZI in Combination with Other Products
• Administer all intravenous drug products as separate infusions.
• Do not co-administer other intravenous drugs through the same infusion line.
• For platinum-based chemotherapy, refer to Prescribing Information for administration information.
• For pemetrexed therapy, refer to Prescribing Information for administration information.
• For BCG therapy, refer to BCG Prescribing Information for administration information. Combination Regimens: Order of Administration IMFINZI in Combination with Tremelimumab-actl
• Infuse tremelimumab-actl first, followed by IMFINZI on the same day of dosing. IMFINZI in Combination with Tremelimumab-actl and Platinum-Based Chemotherapy
• Infuse tremelimumab-actl first, followed by IMFINZI and then platinum-based chemotherapy on the day of dosing. IMFINZI in Combination with Tremelimumab-actl and Pemetrexed Therapy
• Infuse tremelimumab-actl first, followed by IMFINZI and then pemetrexed therapy on the day of dosing. IMFINZI in Combination with Carboplatin and Paclitaxel
• Infuse IMFINZI first and then carboplatin and paclitaxel on the same day of dosing. IMFINZI in Combination with Chemotherapy
• Infuse IMFINZI first and then chemotherapy on the same day of dosing. IMFINZI in combination with BCG
• If IMFINZI is given on the same day as BCG, infuse IMFINZI first, then administer BCG as an intravesical instillation. Combination Regimens: Infusion Instructions IMFINZI in Combination with Tremelimumab-actl
• Administer tremelimumab-actl over 60 minutes followed by a 60 minute observation period. Then administer IMFINZI as a separate intravenous infusion over 60 minutes. IMFINZI in Combination with Tremelimumab-actl and Platinum-Based Chemotherapy/ Pemetrexed Therapy Cycle 1
• Infuse tremelimumab-actl over 60 minutes. One to two hours after completion of tremelimumab-actl infusion, infuse IMFINZI over 60 minutes. One to two hours after completion of IMFINZI infusion, administer platinum-based chemotherapy. Subsequent Cycles
• If there are no infusion reactions during cycle 1, subsequent cycles of IMFINZI can be given immediately after tremelimumab-actl. The time between the end of the IMFINZI infusion and the start of chemotherapy can be reduced to 30 minutes.

5 WARNINGS AND PRECAUTIONS

• Immune-Mediated Adverse Reactions ( 5.1 ) ∘ Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue, including the following: immune-mediated pneumonitis, immune-mediated colitis, immune-mediated hepatitis, immune-mediated endocrinopathies, immune-mediated dermatologic adverse reactions, immune-mediated nephritis and renal dysfunction, solid organ transplant rejection, and immune-mediated pancreatitis. o Monitor for early identification and management. Evaluate liver enzymes, creatinine, and thyroid function at baseline and periodically during treatment. o Withhold or permanently discontinue based on severity and type of reaction.
• Infusion-Related Reactions: Interrupt, slow the rate of infusion, or permanently discontinue IMFINZI based on the severity of the reaction. ( 5.2 )
• Complications of Allogeneic HSCT: Fatal and other serious complications can occur in patients who receive allogeneic HSCT before or after being treated with a PD-1/PD-L1 blocking antibody. ( 5.3 )
• Embryo-Fetal Toxicity: Can cause fetal harm. Advise females of reproductive potential of the potential risk to a fetus and use of effective contraception. ( 5.4 , 8.1 , 8.3 )

5.1 Immune-Mediated Adverse Reactions IMFINZI is a monoclonal antibody that belongs to a class of drugs that bind to either the programmed death-receptor 1 (PD-1) or the PD-ligand 1 (PD-L1), blocking the PD-1/PD-L1 pathway, thereby removing inhibition of the immune response, potentially breaking peripheral tolerance and inducing immune-mediated adverse reactions. Important immune-mediated adverse reactions listed under Warnings and Precautions may not include all possible severe and fatal immune-mediated reactions. The incidence and severity of immune-mediated adverse reactions were similar when IMFINZI was administered as a single agent or in combination with chemotherapy, tremelimumab-actl and platinum-based chemotherapy, or BCG, unless otherwise noted. Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue. Immune-mediated adverse reactions can occur at any time after starting treatment with a PD 1/PD L1 blocking antibody. While immune-mediated adverse reactions usually manifest during treatment with PD-1/PD-L1 blocking antibodies, immune-mediated adverse reactions can also manifest after discontinuation of PD-1/PD-L1 blocking antibodies. Early identification and management of immune-mediated adverse reactions are essential to ensure safe use of PD-1/PD-L1 blocking antibodies. Monitor patients closely for symptoms and signs that may be clinical manifestations of underlying immune-mediated adverse reactions. Evaluate liver enzymes, creatinine, and thyroid function at baseline and periodically during treatment. In cases of suspected immune-mediated adverse reactions, initiate appropriate workup to exclude alternative etiologies, including infection. Institute medical management promptly, including specialty consultation as appropriate. Withhold or permanently discontinue IMFINZI depending on severity [see Dosage and Administration (2.3) ] . In general, if IMFINZI requires interruption or discontinuation, administer systemic corticosteroid therapy (1 mg to 2 mg/kg/day prednisone or equivalent) until improvement to Grade 1 or less. Upon improvement to Grade 1 or less, initiate corticosteroid taper and continue to taper over at least 1 month. Consider administration of other systemic immunosuppressants in patients whose immune-mediated adverse reactions are not controlled with corticosteroid therapy. Toxicity management guidelines for adverse reactions that do not necessarily require systemic steroids (e.g., endocrinopathies and dermatologic reactions) are discussed below. Immune-Mediated Pneumonitis IMFINZI can cause immune-mediated pneumonitis. The incidence of pneumonitis is higher in patients who have received prior thoracic radiation. IMFINZI as a Single Agent In Patients Who Did Not Receive Recent Prior Radiation In patients who received IMFINZI on clinical studies in which radiation therapy was generally not administered immediately prior to initiation of IMFINZI, the incidence of immune-mediated pneumonitis was 2.4% (34/1414), including fatal (< 0.1%), and Grade 3-4 (0.4%) adverse reactions. Events resolved in 19 of the 34 patients and resulted in permanent discontinuation in 5 patients. Systemic corticosteroids were required in 19 patients (19/34) with pneumonitis who did not receive chemoradiation prior to initiation of IMFINZI. The frequency and severity of immune-mediated pneumonitis in patients who did not receive definitive chemoradiation prior to IMFINZI were similar whether IMFINZI was given as a single agent in patients with various cancers in a pooled data set or in patients with ES-SCLC or BTC when given in combination with chemotherapy. In Patients Who Received Recent Prior Radiation The incidence of pneumonitis (including radiation pneumonitis) in patients with unresectable Stage III NSCLC following definitive chemoradiation within 42 days prior to initiation of IMFINZI in PACIFIC was 18.3% (87/475) in patients receiving IMFINZI and 12.8% (30/234) in patients receiving placebo. Of the patients who received IMFINZI (475), 1.1% had a fatal adverse reaction and 2.7% had Grade 3 adverse reactions. Events resolved in 50 of the 87 (57%) patients and resulted in permanent discontinuation in 27 of the 87 (31%) patients. Systemic corticosteroids were required in 64 patients (64/87) with pneumonitis who had received chemoradiation prior to initiation of IMFINZI, while 2 patients required use of infliximab with high-dose steroids. The incidence of pneumonitis (including radiation pneumonitis) in patients with LS-SCLC following chemoradiation within 42 days prior to initiation of IMFINZI in ADRIATIC was 14% (37/262) in patients receiving IMFINZI and 6% (16/265) in patients receiving placebo. Of the patients who received IMFINZI (262), 0.4% had a fatal adverse reaction and 2.7% had Grade 3 adverse reactions. Events resolved in 19 of the 37 (51%) patients and resulted in permanent discontinuation in 18 of the 37 (49%) patients. Systemic corticosteroids were required in all patients, while 1 patient required use of infliximab with high-dose steroids. IMFINZI with Tremelimumab-actl Immune-mediated pneumonitis occurred in 1.3% (5/388) of patients receiving IMFINZI in combination with tremelimumab-actl, including fatal (0.3%) and Grade 3 (0.2%) adverse reactions. Events resolved in 3 of the 5 patients and resulted in permanent discontinuation in 1 patient. Systemic corticosteroids were required in all patients; of these, 4 patients required high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). One patient (1/5) required other immunosuppressants. IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated pneumonitis occurred in 3.5% (21/596) of patients receiving IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy, including fatal (0.5%), and Grade 3 (1%) adverse reactions. Events resolved in 11 of the 21 patients and resulted in permanent discontinuation in 7 patients. Systemic corticosteroids were required in all patients with immune-mediated pneumonitis, while 1 patient (1/21) required other immunosuppressants. Immune-Mediated Colitis IMFINZI can cause immune-mediated colitis that is frequently associated with diarrhea. Cytomegalovirus (CMV) infection/reactivation has been reported in patients with corticosteroid-refractory immune-mediated colitis. In cases of corticosteroid-refractory colitis, consider repeating infectious workup to exclude alternative etiologies. IMFINZI as a Single Agent Immune-mediated colitis occurred in 2% (37/1889) of patients receiving IMFINZI, including Grade 4 (< 0.1%) and Grade 3 (0.4%) adverse reactions. Events resolved in 27 of the 37 patients and resulted in permanent discontinuation in 8 patients. Systemic corticosteroids were required in all patients with immune-mediated colitis, while 2 patients (2/37) required other immunosuppressants (e.g., infliximab, mycophenolate). IMFINZI with Tremelimumab-actl Immune-mediated colitis or diarrhea occurred in 6% (23/388) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (3.6%) adverse reactions. Events resolved in 22 of the 23 patients and resulted in permanent discontinuation in 5 patients. All patients received systemic corticosteroids, and 20 of the 23 patients received high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). Three patients also received other immunosuppressants. Intestinal perforation has been observed in other studies of IMFINZI in combination with tremelimumab-actl. IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated colitis occurred in 6.5% (39/596) of patients receiving IMFINZI in combination with tremelimumab-actl including fatal (0.2%) and Grade 3 (2.5%) adverse reactions. Events resolved in 33 of 39 patients and resulted in permanent discontinuation in 11 patients. Systemic corticosteroids were required in all patients with immune-mediated colitis, while 4 patients (4/39) required other corticosteroids. Intestinal perforation and large intestine perforation were reported in 0.1% of patients receiving IMFINZI in combination with tremelimumab-actl. Immune-Mediated Hepatitis IMFINZI can cause immune-mediated hepatitis. IMFINZI as a Single Agent Immune-mediated hepatitis occurred in 2.8% (52/1889) of patients receiving IMFINZI, including fatal (0.2%), Grade 4 (0.3%) and Grade 3 (1.4%) adverse reactions. Events resolved in 21 of the 52 patients and resulted in permanent discontinuation of IMFINZI in 6 patients. Systemic corticosteroids were required in all patients with immune-mediated hepatitis, while 2 patients (2/52) required use of mycophenolate with high-dose steroids. IMFINZI with Tremelimumab-actl Immune-mediated hepatitis occurred in 7.5% (29/388) of patients receiving IMFINZI in combination with tremelimumab-actl, including fatal (0.8%), Grade 4 (0.3%), and Grade 3 (4.1%) adverse reactions. Events resolved in 12 of the 29 patients and resulted in permanent discontinuation in 9 patients. Systemic corticosteroids were required in all 29 patients and all 29 patients required high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). Eight patients (8/29) required other immunosuppressants. IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated hepatitis occurred in 3.9% (23/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including fatal (0.3%), Grade 4 (0.5%), and Grade 3 (2.0%) adverse reactions. Events resolved in 12 of the 23 patients and resulted in permanent discontinuation in 10 patients. Systemic corticosteroids were required in all patients with immune-mediated hepatitis, while 2 patients (2/23) required use of other immunosuppressants. Immune-Mediated Endocrinopathies Adrenal Insufficiency IMFINZI can cause primary or secondary adrenal insufficiency. For Grade 2 or higher adrenal insufficiency, initiate symptomatic treatment, including hormone replacement as clinically indicated. Withhold or permanently discontinue IMFINZI based on the severity [see Dosage and Administration (2.3) ] . IMFINZI as a Single Agent Immune-mediated adrenal insufficiency occurred in 0.5% (9/1889) of patients receiving IMFINZI, including Grade 3 (< 0.1%) adverse reactions. Events resolved in 1 of the 9 patients and did not lead to permanent discontinuation of IMFINZI in any patients. Systemic corticosteroids were required in all patients with adrenal insufficiency; of these, the majority remained on systemic corticosteroids. IMFINZI with Tremelimumab-actl Immune-mediated adrenal insufficiency occurred in 1.5% (6/388) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.3%) adverse reactions. Events resolved in 2 of the 6 patients. Systemic corticosteroids were required in all 6 patients, and of these, 1 patient required high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated adrenal insufficiency occurred in 2.2% (13/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.8%) adverse reactions. Events resolved in 2 of the 13 patients and resulted in permanent discontinuation in 1 patient. Systemic corticosteroids were required in all patients with adrenal insufficiency. One patient also required endocrine therapy. Hypophysitis IMFINZI can cause immune-mediated hypophysitis. Hypophysitis can present with acute symptoms associated with mass effect such as headache, photophobia, or visual field cuts. Hypophysitis can cause hypopituitarism. Initiate symptomatic treatment including hormone replacement as clinically indicated. Withhold or permanently discontinue IMFINZI depending on severity [see Dosage and Administration (2.3) ] . IMFINZI as a Single Agent Grade 3 hypophysitis/hypopituitarism occurred in < 0.1% (1/1889) of patients who received IMFINZI. Treatment with systemic corticosteroids was administered in this patient. The event did not lead to permanent discontinuation of IMFINZI. IMFINZI with Tremelimumab-actl Immune-mediated hypophysitis/hypopituitarism occurred in 1% (4/388) of patients receiving IMFINZI in combination with tremelimumab-actl. Events resolved in 2 of the 4 patients. Systemic corticosteroids were required in 3 patients, and of these, 1 patient received high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). Two patients also required endocrine therapy. IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated hypophysitis occurred in 1.3% (8/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.5%) adverse reactions. Events resulted in permanent discontinuation in 1 patient. Systemic corticosteroids were required in 6 patients with immune-mediated hypophysitis; of these, 2 of the 8 patients received high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). Four patients also required endocrine therapy. Thyroid Disorders IMFINZI can cause immune-mediated thyroid disorders. Thyroiditis can present with or without endocrinopathy. Hypothyroidism can follow hyperthyroidism. Initiate hormone replacement therapy for hypothyroidism or institute medical management of hyperthyroidism as clinically indicated. Withhold or discontinue IMFINZI based on the severity [see Dosage and Administration (2.3) ] . Thyroiditis IMFINZI as a Single Agent Immune-mediated thyroiditis occurred in 0.5% (9/1889) of patients receiving IMFINZI, including Grade 3 (< 0.1%) adverse reactions. Events resolved in 4 of the 9 patients and resulted in permanent discontinuation in 1 patient. Systemic corticosteroids were required in 3 patients (3/9) with immune-mediated thyroiditis, while 8 patients (8/9) required endocrine therapy. IMFINZI with Tremelimumab-actl Immune-mediated thyroiditis occurred in 1.5% (6/388) of patients receiving IMFINZI in combination with tremelimumab-actl. Events resolved in 2 of the 6 patients. Systemic corticosteroids were required in 2 patients (2/6) with immune-mediated thyroiditis; of these, 1 patient required high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). All patients required other therapy including hormone replacement therapy, thiamazole, carbimazole, propylthiouracil, perchlorate, calcium channel blocker, or beta-blocker. IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated thyroiditis occurred in 1.2% (7/596) of patients receiving IMFINZI in combination with tremelimumab-actl. Events resolved in 2 of the 7 patients and one resulted in permanent discontinuation. Systemic corticosteroids were required in 2 patients (2/7) with immune-mediated thyroiditis, while all patients required endocrine therapy. Hyperthyroidism IMFINZI as a Single Agent Immune-mediated hyperthyroidism occurred in 2.1% (39/1889) of patients receiving IMFINZI. Events resolved in 30 of the 39 patients and did not lead to permanent discontinuation of IMFINZI in any patients. Systemic corticosteroids were required in 9 patients (9/39) with immune-mediated hyperthyroidism, while 35 patients (35/39) required endocrine therapy. IMFINZI with Tremelimumab-actl Immune-mediated hyperthyroidism occurred in 4.6% (18/388) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.3%) adverse reactions. Events resolved in 15 of the 18 patients. Two patients (2/18) required high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). Seventeen patients required other therapy (thiamazole, carbimazole, propylthiouracil, perchlorate, calcium channel blocker, or beta-blocker). IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated hyperthyroidism occurred in 5% (30/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.2%) adverse reactions. Events resolved in 21 of the 30 patients. Systemic corticosteroids were required in 5 patients (5/30) with immune-mediated hyperthyroidism, while 28 patients (28/30) required endocrine therapy. Hypothyroidism IMFINZI as a Single Agent Immune-mediated hypothyroidism occurred in 8.3% (156/1889) of patients receiving IMFINZI, including Grade 3 (<0.1%) adverse reactions. Events resolved in 31 of the 156 patients and did not lead to permanent discontinuation of IMFINZI in any patients. Systemic corticosteroids were required in 11 patients (11/156) and the majority of patients (152/156) required long-term thyroid hormone replacement. IMFINZI with Tremelimumab-actl Immune-mediated hypothyroidism occurred in 11% (42/388) of patients receiving IMFINZI in combination with tremelimumab-actl. Events resolved in 5 of the 42 patients. One patient received high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). All patients required other therapy (thiamazole, carbimazole, propylthiouracil, perchlorate, calcium channel blocker, or beta-blocker). IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated hypothyroidism occurred in 8.6% (51/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.5%) adverse reactions. Systemic corticosteroids were required in 2 patients (2/51) and all patients required endocrine therapy. IMFINZI with Carboplatin and Paclitaxel Immune-mediated hypothyroidism occurred in 14% (34/235) of patients receiving IMFINZI in combination with carboplatin and paclitaxel. Events resolved in 8 of the 34 patients. Endocrine therapy was required in 34 of the 34 patients. Type 1 Diabetes Mellitus, which can present with diabetic ketoacidosis Monitor patients for hyperglycemia or other signs and symptoms of diabetes. Initiate treatment with insulin as clinically indicated. Withhold or permanently discontinue IMFINZI based on the severity [see Dosage and Administration (2.3) ]. IMFINZI as a Single Agent Grade 3 immune-mediated type 1 diabetes mellitus occurred in < 0.1% (1/1889) of patients receiving IMFINZI. This patient required long-term insulin therapy and IMFINZI was permanently discontinued. Two additional patients (0.1%, 2/1889) had events of hyperglycemia requiring insulin therapy that did not resolve at the time of reporting. IMFINZI with Tremelimumab-actl Two patients (0.5%, 2/388) had events of hyperglycemia requiring insulin therapy that had not resolved at last follow-up. IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated Type 1 diabetes mellitus occurred in 0.5% (3/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.3%) adverse reactions. All patients required endocrine therapy. Immune-Mediated Nephritis with Renal Dysfunction IMFINZI can cause immune-mediated nephritis. IMFINZI as a Single Agent Immune-mediated nephritis occurred in 0.5% (10/1889) of patients receiving IMFINZI, including Grade 3 (< 0.1%) adverse reactions. Events resolved in 5 of the 10 patients and resulted in permanent discontinuation in 3 patients. Systemic corticosteroids were required in all patients with immune-mediated nephritis. IMFINZI with Tremelimumab-actl Immune-mediated nephritis occurred in 1% (4/388) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.5%) adverse reactions. Events resolved in 3 of the 4 patients and resulted in permanent discontinuation in 2 patients. Systemic corticosteroids were required in all patients with immune-mediated nephritis; of these, 3 patients required high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated nephritis occurred in 0.7% (4/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.2%) adverse reactions. Events resolved in 1 of the 4 patients and resulted in permanent discontinuation in 3 patients. Systemic corticosteroids were required in all patients with immune-mediated nephritis. Immune-Mediated Dermatology Reactions IMFINZI can cause immune-mediated rash or dermatitis. Exfoliative dermatitis, including Stevens Johnson Syndrome (SJS), drug rash with eosinophilia and systemic symptoms (DRESS), and toxic epidermal necrolysis (TEN), has occurred with PD-1/L-1 blocking antibodies. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate non-exfoliative rashes. Withhold or permanently discontinue IMFINZI depending on severity [see Dosage and Administration (2.3) ]. IMFINZI as a Single Agent Immune-mediated rash or dermatitis occurred in 1.8% (34/1889) of patients receiving IMFINZI, including Grade 3 (0.4%) adverse reactions. Events resolved in 19 of the 34 patients and resulted in permanent discontinuation in 2 patients. Systemic corticosteroids were required in all patients with immune-mediated rash or dermatitis. IMFINZI with Tremelimumab-actl Immune-mediated rash or dermatitis occurred in 4.9% (19/388) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 4 (0.3%) and Grade 3 (1.5%) adverse reactions. Events resolved in 13 of the 19 patients and resulted in permanent discontinuation in 2 patients. Systemic corticosteroids were required in all patients with immune-mediated rash or dermatitis; of these, 12 patients required high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). One patient received other immunosuppressants. IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Immune-mediated rash or dermatitis occurred in 7.2% (43/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.3%) adverse reactions. Events resolved in 32 of the 43 patients and resulted in permanent discontinuation in 2 patients. Systemic corticosteroids were required in all patients with immune-mediated rash or dermatitis. Immune-Mediated Pancreatitis IMFINZI in combination with tremelimumab-actl can cause immune-mediated pancreatitis. IMFINZI with Tremelimumab-actl Immune-mediated pancreatitis occurred in 2.3% (9/388) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 4 (0.3%) and Grade 3 (1.5%) adverse reactions. Events resolved in 6 of the 9 patients. Systemic corticosteroids were required in all 9 patients, and of these 7 patients required high-dose corticosteroid treatment (at least 40 mg prednisone or equivalent per day). Other Immune-Mediated Adverse Reactions The following clinically significant, immune-mediated adverse reactions occurred at an incidence of less than 1% each in patients who received IMFINZI or IMFINZI in combination with tremelimumab-actl, or were reported with the use of other PD-1/PD-L1 blocking antibodies. Cardiac/vascular: Myocarditis, pericarditis, vasculitis. Nervous system: Meningitis, encephalitis, myelitis and demyelination, myasthenic syndrome/myasthenia gravis (including exacerbation), Guillain-Barré syndrome, nerve paresis, autoimmune neuropathy. Ocular: Uveitis, iritis, and other ocular inflammatory toxicities can occur. Some cases can be associated with retinal detachment. Various grades of visual impairment to include blindness can occur. If uveitis occurs in combination with other immune-mediated adverse reactions, consider a Vogt-Koyanagi-Harada-like syndrome, as this may require treatment with systemic steroids to reduce the risk of permanent vision loss. Gastrointestinal: Pancreatitis including increases in serum amylase and lipase levels, gastritis, duodenitis. Musculoskeletal and connective tissue disorders: Myositis/polymyositis, rhabdomyolysis and associated sequelae including renal failure, arthritis, polymyalgia rheumatic. Endocrine: Hypoparathyroidism. Hematologic/Immune : Hemolytic anemia, aplastic anemia, hemophagocytic lymphohistiocytosis, systemic inflammatory response syndrome, histiocytic necrotizing lymphadenitis (Kikuchi lymphadenitis), sarcoidosis, immune thrombocytopenia, solid organ transplant rejection, other transplant (including corneal graft) rejection. Other: Myocarditis-Myositis-Myasthenia Gravis (or Myasthenia-Like) Overlap Syndrome, reported as the co-occurrence of either two or all three adverse reactions.

5.2 Infusion-Related Reactions IMFINZI can cause severe or life-threatening infusion-related reactions. Monitor for signs and symptoms of infusion-related reactions. Interrupt, slow the rate of, or permanently discontinue IMFINZI based on the severity [see Dosage and Administration (2.3) ] . For Grade 1 or 2 infusion-related reactions, consider using pre-medications with subsequent doses. IMFINZI as a Single Agent Infusion-related reactions occurred in 2.2% (42/1889) of patients receiving IMFINZI, including Grade 3 (0.3%) adverse reactions. IMFINZI in Combination with Tremelimumab-actl Infusion-related reactions occurred in 2.6% (10/388) of patients receiving IMFINZI in combination with tremelimumab-actl. IMFINZI with Tremelimumab-actl and Platinum-Based Chemotherapy Infusion-related reactions occurred in 2.9% (17/596) of patients receiving IMFINZI in combination with tremelimumab-actl, including Grade 3 (0.3%) adverse reactions.

5.3 Complications of Allogeneic HSCT after IMFINZI Fatal and other serious complications can occur in patients who receive allogeneic hematopoietic stem cell transplantation (HSCT) before or after being treated with a PD-1/L-1 blocking antibody. Transplant-related complications include hyperacute graft-versus-host-disease (GVHD), acute GVHD, chronic GVHD, hepatic veno-occlusive disease (VOD) after reduced intensity conditioning, and steroid-requiring febrile syndrome (without an identified infectious cause). These complications may occur despite intervening therapy between PD-1/L-1 blockade and allogeneic HSCT. Follow patients closely for evidence of transplant-related complications and intervene promptly. Consider the benefit versus risks of treatment with a PD-1/L-1 blocking antibody prior to or after an allogeneic HSCT.

5.4 Embryo-Fetal Toxicity Based on its mechanism of action and data from animal studies, IMFINZI can cause fetal harm when administered to a pregnant woman. In animal reproduction studies, administration of durvalumab to cynomolgus monkeys from the onset of organogenesis through delivery resulted in increased premature delivery, fetal loss and premature neonatal death. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with IMFINZI and for 3 months after the last dose of IMFINZI [see Use in Specific Populations (8.1 , 8.3 )] .

The following adverse reactions are discussed in greater detail in other sections of the labeling.

• Immune-Mediated Adverse Reactions [see Warnings and Precautions (5.1) ].
• Infusion-Related Reactions [see Warnings and Precautions (5.2) ]. IMFINZI in Combination with Chemotherapy
• Most common adverse reactions (≥ 20%) of patients with resectable, Stage II/III NSCLC [neoadjuvant /adjuvant]) are anemia, nausea, constipation, fatigue, musculoskeletal pain, and rash. ( 6.1 ) IMFINZI as a Single Agent
• Most common adverse reactions (≥ 20%) of patients with unresectable, Stage III NSCLC) are cough, fatigue, pneumonitis/radiation pneumonitis, upper respiratory tract infections, dyspnea, and rash. ( 6.1 ) IMFINZI in Combination with Tremelimumab-actl and Platinum-Based Chemothe rapy
• Most common adverse reactions (≥ 20%) of patients with metastatic NSCLC) are nausea, fatigue, musculoskeletal pain, decreased appetite, rash, and diarrhea. ( 6.1 ) IMFINZI as a Single Agent
• Most common adverse reactions (≥ 20%) of patients with limited-stage SCLC) are pneumonitis or radiation pneumonitis, and fatigue. ( 6.1 ) IMFINZI in Combination with Platinum-Based Chemotherapy
• Most common adverse reactions (≥ 20%) of patients with extensive-stage SCLC) are nausea, fatigue/asthenia, and alopecia. ( 6.1 ) IMFINZI in Combination with Gemcitabine and Cisplatin
• Most common adverse reactions (≥ 20%) of patients with BTC) are fatigue, nausea, constipation, decreased appetite, abdominal pain, rash, and pyrexia. ( 6.1 ) IMFINZI in Combination with Tremelimumab-actl
• Most common adverse reactions (≥ 20%) of patients with uHCC) are rash, diarrhea, fatigue, pruritus, musculoskeletal pain, and abdominal pain. ( 6.1 ) IMFINZI in Combination with Carboplatin and Paclitaxel, followed by IMFINZI as a single agent
• Most common adverse reactions (≥ 20%) of patients with endometrial cancer) were peripheral neuropathy, musculoskeletal pain, nausea, alopecia, fatigue, abdominal pain, constipation, rash, decreased magnesium, increased ALT, increased AST, diarrhea, vomiting, cough, decreased potassium, dyspnea, headache, and increased alkaline phosphatase. ( 6.1 ) IMFINZI in Combination with Gemcitabine and Cisplatin, followed by IMFINZI as a single agent
• Most common adverse reactions (≥ 20% of patients with MIBC) were decreased hemoglobin, decreased neutrophils, increased blood creatinine, decreased sodium, nausea, increased ALT, decreased calcium, decreased platelets, fatigue, increased potassium, decreased lymphocytes, increased AST, constipation, decreased magnesium, decreased appetite, increased alkaline phosphate, rash, pyrexia, diarrhea, vomiting and abdominal pain. ( 6.1 ) IMFINZI in Combination with BCG
• Most common adverse reactions (≥ 20% of patients with BCG-naïve high-risk NMIBC) were increased glucose, increased AST, increased lipase, increased ALT, increased GGT, urinary tract infection, increased potassium, dysuria, decreased hemoglobin, hematuria, increased serum creatinine, musculoskeletal pain, decreased lymphocytes, urinary frequency, decreased sodium, fatigue, rash, and pyrexia. ( 6.1 ) IMFINZI in Combination with FLOT Chemotherapy followed by IMFINZI as a single agent
• Most common adverse reactions (≥ 20% of patients with resectable GC/GEJC) were diarrhea, nausea, peripheral neuropathy, fatigue, alopecia, decreased appetite, rash, abdominal pain, vomiting, musculoskeletal pain, pyrexia, and stomatitis ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, contact AstraZeneca at 1-800-236-9933 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The data described in the WARNINGS AND PRECAUTIONS section reflect exposure to IMFINZI as a single agent in a total of 1,889 patients enrolled in the PACIFIC study (a randomized, placebo-controlled study that enrolled 475 patients with unresectable Stage III NSCLC), Study 1108 (an open-label, single-arm, multicohort study that enrolled 970 patients with advanced solid tumors), and an additional open-label, single-arm study (ATLANTIC Study) that enrolled 444 patients with advanced solid tumors, including NSCLC. In these studies, IMFINZI was administered at a dose of 10 mg/kg every 2 weeks. Among the 1889 patients, 38% were exposed for 6 months or more and 18% were exposed for 12 months or more. The data also reflect exposure to IMFINZI 1,500 mg every 4 weeks as a single agent in 262 patients from the ADRIATIC study (a randomized, double-blind study in patients with LS-SCLC) and to IMFINZI in combination with chemotherapy in 265 patients from the CASPIAN study (a randomized, open-label study in patients with ES-SCLC) and in 338 patients from the TOPAZ-1 study (a randomized, double-blind study in patients with BTC). In the CASPIAN and TOPAZ-1 studies, IMFINZI was administered at a dose of 1,500 mg every 3 or 4 weeks. The data also reflect exposure to IMFINZI 1,120 mg in combination with carboplatin and paclitaxel (every 3 weeks for up to 6 cycles) followed by IMFINZI 1,500 mg (every 4 weeks) as a single agent in 235 patients in DUO-E (a randomized, placebo-controlled trial in endometrial cancer). Among the 235 patients, 77% (181 patients) were exposed to IMFINZI for 6 months or more and 41% (96 patients) for 12 months or more. The data also reflect exposure to IMFINZI 1,500 mg in combination with tremelimumab-actl 300 mg in 388 patients in HIMALAYA. In the HIMALAYA study patients received IMFINZI 1,500 mg in combination with tremelimumab-actl as a single intravenous infusion of 300 mg, followed by IMFINZI 1,500 mg every 4 weeks. The pooled safety population (N = 596) described in the WARNINGS AND PRECAUTIONS section reflect exposure to IMFINZI 1,500 mg in combination with tremelimumab-actl 75 mg and histology-based platinum chemotherapy regimens in 330 patients in POSEIDON [see Clinical Studies (14.1) ] , and 266 patients with ES-SCLC in CASPIAN who received up to four cycles of platinum-etoposide plus IMFINZI 1,500 mg with tremelimumab-actl 75 mg every 3 weeks, followed by IMFINZI 1,500 mg every 4 weeks (an unapproved regimen for extensive stage small cell lung cancer). Among the 596 patients, 55% were exposed to IMFINZI for 6 months or more and 24% were exposed for 12 months or more. The data described in this section reflect exposure to IMFINZI in patients with unresectable Stage III NSCLC enrolled in the PACIFIC study, in patients with metastatic NSCLC enrolled in the POSEIDON study, in patients with LS-SCLC enrolled in the ADRIATIC study, in patients with ES-SCLC enrolled in the CASPIAN study, in patients with BTC enrolled in the TOPAZ 1 study, in patients with uHCC included in the HIMALAYA study, in patients with dMMR endometrial cancer enrolled in the DUO-E study, in patients with resectable NSCLC enrolled in the AEGEAN study, in patients with BCG-naïve, high-risk NMIBC enrolled in the POTOMAC study, and in patients with MIBC enrolled in the NIAGARA study. Non-Small Cell Lung Cancer Neoadjuvant and Adjuvant Treatment of Resectable NSCLC – AEGEAN The safety of IMFINZI in combination with neoadjuvant platinum-containing chemotherapy followed by surgery, and continued adjuvant treatment with IMFINZI as a single agent after surgery, was investigated in AEGEAN, a randomized, double-blind, placebo-controlled, multicenter study for patients with resectable NSCLC (Stage IIA to select Stage IIIB [AJCC, 8th edition]); squamous or non-squamous) [see Clinical Studies (14.1) ] . Safety data are available for the 799 patients who received IMFINZI in combination with chemotherapy (n=401) or placebo in combination with chemotherapy (n=398). The median duration of exposure to IMFINZI 1,500 mg every 3 weeks in the neoadjuvant phase was 12 weeks (range: 0 to 19 weeks). The median duration of exposure to IMFINZI 1,500 mg every 4 weeks in the adjuvant phase was 37 weeks (range: 4 to 67 weeks). The median age of patients who received IMFINZI was 65 years (range: 30 to 88), 52% age 65 or older, 12% age 75 or older; 65% male; 54% White, 41% Asian, 1% Black, 3% Other races; and 17% Hispanic or Latino. The most common adverse reactions (occurring in ≥ 20% of patients) were anemia, nausea, constipation, fatigue, musculoskeletal pain, and rash. Table 5 summarizes the adverse reactions that occurred in (≥ 10%) patients treated with IMFINZI in combination with chemotherapy. Table 5. Adverse Reactions Occurring in ≥ 10% of Patients in the AEGEAN Study Adverse Reaction IMFINZI with Chemotherapy N=401 Placebo with Chemotherapy N=398 All Grades (%) Grade 3 or 4 (%) All Grades (%) Grade 3 or 4 (%) Gastrointestinal disorders Nausea 25 0.2 29 0.3 Constipation 25 0.2 21 0 Diarrhea includes colitis, diarrhea, enteritis, and proctitis. 14 1 13 1.3 Vomiting 11 0.7 11 1.0 General disorders and administration site conditions Fatigue includes fatigue and asthenia. 25 0 25 1.5 Skin and subcutaneous tissue disorders Rash includes dermatitis, dermatitis acneiform, drug eruption, eczema, eczema asteatotic, erythema, palmar‑erythrodysaesthesia syndrome, pemphigoid, rash, rash erythematous, rash macular, rash maculo-papular, rash papular, rash pruritic, and rash pustular, skin exfoliation, and urticarial dermatitis. 22 0.5 14 0.3 Pruritus 12 0.2 6 0 Musculoskeletal and connective tissue disorders Musculoskeletal pain includes arthralgia, arthritis, back pain, bone pain, chest pain, musculoskeletal chest pain, musculoskeletal pain, musculoskeletal discomfort, musculoskeletal stiffness,myalgia, neck pain, non-cardiac chest pain, pain in extremity, and spinal pain. 24 1 29 0.5 Metabolism and nutrition disorders Decreased appetite 18 0.2 18 0.3 Nervous system disorders Peripheral neuropathy includes dysaesthesia, hypoaesthesia, neuralgia, neuropathy peripheral, paraesthesia, peripheral sensory neuropathy, and polyneuropathy. 16 0.5 22 0.8 Endocrine disorders Hypothyroidism includes blood thyroid stimulating hormone increased and hypothyroidism. 11 0 3.8 0 Respiratory, thoracic and mediastinal disorders Cough / Productive cough 11 0 13 0 Pneumonia includes lower respiratory tract infection, lung abscess, paracancerous pneumonia, pneumonia, pneumonia aspiration, pneumonia bacterial, pneumonia chlamydial, pneumonia cryptococcal, pneumonia fungal, pneumonia pseudomonal, pneumonia streptococcal, pneumonia viral, and post-procedural pneumonia. , Five Grade 5 events in the IMFINZI arm and four Grade 5 events in the Placebo arm. 11 3.5 10 3 COVID-19 Includes COVID-19 and COVID-19 Pneumonia. Five Grade 5 events in the IMFINZI arm and One Grade 5 event in the placebo arm. 11 0.2 9 0.8 Psychiatric Disorders Insomnia 10 0 12 0 Table 6 summarizes the laboratory abnormalities in patients treated with IMFINZI in combination with chemotherapy. Table 6. Select Laboratory Abnormalities (≥ 20%) That Worsened from Baseline in Patients with Disease Who Received IMFINZI with Chemotherapy in AEGEAN Laboratory Abnormality Graded per NCI CTCAE V5. IMFINZI with Chemotherapy The denominator used to calculate the rate varied from 349 to 399 based on the number of patients with a baseline value and at least one post-treatment value. Placebo with Chemotherapy The denominator used to calculate the rate varied from 333 to 398 based on the number of patients with a baseline value and at least one post-treatment value. All Grades (%) Grade 3 or 4 (%) All Grades (%) Grade 3 or 4 (%) Hematology Hemoglobin decreased 78 10 75 9 Leukocytes decreased 63 12 64 11 Neutrophils decreased 52 24 56 27 Platelets decreased 46 7 44 8 Lymphocytes decreased 41 11 37 9 Chemistry Calcium corrected, decreased 51 3.3 52 4.5 Alanine aminotransferase increased 49 6 42 2 Aspartate aminotransferase increased 47 3.5 37 1.8 Potassium increased 33 1.5 29 2 Sodium decreased 35 5 33 6 Gamma glutamyl transferase increased 36 4.7 35 2.1 Creatinine increased 32 2.3 27 3.3 Amylase increased 25 4.7 24 3.6 Magnesium decreased 22 2.8 20 3.6 Lipase increased 23 4.9 24 7 Neoadjuvant Phase of AEGEAN A total of 401 patients received at least 1 dose of IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment and 398 patients received at least 1 dose of placebo in combination with platinum-containing chemotherapy as neoadjuvant treatment. Serious adverse reactions occurred in 21% of patients who received IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment; the most frequent (≥1%) serious adverse reactions were pneumonia (2.7%), anemia (1.5%), myelosuppression (1.5%), vomiting (1.2%), neutropenia (1%), and acute kidney injury (1%). Fatal adverse reactions occurred in 2% of patients, including death due to COVID-19 pneumonia (0.5%), sepsis (0.5%), myocarditis (0.2%), decreased appetite (0.2%), hemoptysis (0.2%), and death not otherwise specified (0.2%). Permanent discontinuation of any study drug due to an adverse reaction occurred in 14% of patients who received IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment; the most frequent (>0.5%) adverse reactions that led to permanent discontinuation of any study drug were anemia (1.5%), neutropenia (0.7%), myelosuppression (0.7%), and periphery sensory neuropathy (0.7%). Permanent discontinuation of IMFINZI due to an adverse reaction occurred in 6.7% of patients who received IMFINZI in combination with platinum-containing chemotherapy as neoadjuvant treatment; the most frequent (≥0.5%) adverse reactions that led to permanent discontinuation of IMFINZI were peripheral sensory neuropathy (0.7%) and pneumonitis (0.5%). Of the 401 IMFINZI-treated patients and 398 placebo-treated patients who received neoadjuvant treatment, 1.7% (n=7) and 1% (n=4), respectively, did not receive surgery due to adverse reactions. Adverse reactions that led to cancellation of surgery in the IMFINZI arm were COVID-19 pneumonia, HIV infection, pneumonitis, prostate cancer, colon cancer, pruritus, and colitis. Of the 325 IMFINZI-treated patients who received surgery, 4% (n=15) experienced delay of surgery (a surgical delay is defined as on-study surgery occurring more than 40 days after the last dose of study treatment in the neoadjuvant period) due to adverse reactions. Of the 326 placebo-treated patients who received surgery, 4% (n=16) experienced delay of surgery due to adverse reactions. Of the 325 IMFINZI-treated patients who received surgery, 6.5% (n=21) did not receive adjuvant treatment due to adverse reactions. Of the 326 placebo-treated patients who received surgery, 5.8% (n=19) did not receive adjuvant treatment due to adverse reactions. Adjuvant Phase of AEGEAN A total of 265 patients in the IMFINZI arm and 254 patients in the placebo arm received at least 1 dose of adjuvant treatment. Of the patients who received single agent IMFINZI as adjuvant treatment, 13% experienced serious adverse reactions. The most frequent serious adverse reactions reported in >1% of patients were pneumonia (1.9%), pneumonitis (1.1%), and COVID-19 (1.1%). Four fatal adverse reactions occurred during the adjuvant phase of the study, including COVID-19 pneumonia, pneumonia aspiration, interstitial lung disease and aortic aneurysm. Permanent discontinuation of adjuvant IMFINZI due to an adverse reaction occurred in 8% of patients. The most frequent (≥0.5%) adverse reaction that led to permanent discontinuation of adjuvant IMFINZI was pneumonitis (1.1%) and rash (0.8%). Unresectable Stage III NSCLC - PACIFIC The safety of IMFINZI in patients with Stage III NSCLC who completed concurrent platinum-based chemoradiotherapy within 42 days prior to initiation of study drug was evaluated in the PACIFIC study, a multicenter, randomized, double-blind, placebo-controlled study. A total of 475 patients received IMFINZI 10 mg/kg intravenously every 2 weeks. The study excluded patients who had disease progression following chemoradiation, with active or prior autoimmune disease within 2 years of initiation of the study or with medical conditions that required systemic immunosuppression [see Clinical Studies (14.1) ]. The study population characteristics were: median age of 64 years (range: 23 to 90), 45% age 65 years or older, 70% male, 69% White, 27% Asian, 75% former smoker, 16% current smoker, and 51% had WHO performance status (PS) of 1. All patients received definitive radiotherapy as per protocol, of which 92% received a total radiation dose of 54 Gy to 66 Gy. The median duration of exposure to IMFINZI was 10 months (range: 0.2 to 12.6). IMFINZI was discontinued due to adverse reactions in 15% of patients. The most common adverse reactions leading to IMFINZI discontinuation were pneumonitis or radiation pneumonitis in 6% of patients. Serious adverse reactions occurred in 29% of patients receiving IMFINZI. The most frequent serious adverse reactions reported in at least 2% of patients were pneumonitis or radiation pneumonitis (7%) and pneumonia (6%). Fatal pneumonitis or radiation pneumonitis and fatal pneumonia occurred in < 2% of patients and were similar across arms. The most common adverse reactions (occurring in ≥ 20% of patients) were cough, fatigue, pneumonitis or radiation pneumonitis, upper respiratory tract infections, dyspnea, and rash. Table 7 summarizes the adverse reactions that occurred in at least 10% of patients treated with IMFINZI. Table 7. Adverse Reactions Occurring in ≥ 10% of Patients in the PACIFIC Study IMFINZI N = 475 Placebo N = 234 Adverse Reaction All Grades (%) Grades 3-4 (%) All Grades (%) Grades 3-4 (%) Respiratory, Thoracic, and Mediastinal Disorders Cough/Productive Cough 40 0.6 30 0.4 Pneumonitis Includes acute interstitial pneumonitis, interstitial lung disease, pneumonitis, pulmonary fibrosis. /Radiation Pneumonitis 34 3.4 25 3 Dyspnea Includes dyspnea, and exertional dyspnea. 25 1.5 25 2.6 General Disorders Fatigue Includes asthenia and fatigue. 34 0.8 32 1.3 Pyrexia 15 0.2 9 0 Infections Upper respiratory tract infections Includes laryngitis, nasopharyngitis, peritonsillar abscess, pharyngitis, rhinitis, sinusitis, tonsillitis, tracheobronchitis, and upper respiratory tract infection. 26 0.4 19 0 Pneumonia Includes lung infection, pneumocystis jirovecii pneumonia, pneumonia, pneumonia adenoviral, pneumonia bacterial, pneumonia cytomegaloviral, pneumonia haemophilus, pneumonia klebsiella, pneumonia necrotizing, pneumonia pneumococcal, and pneumonia streptococcal. 17 7 12 6 Skin and Subcutaneous Tissue Disorders Rash Includes rash erythematous, rash generalized, rash macular, rash maculopapular, rash papular, rash pruritic, rash pustular, erythema, eczema, rash, and dermatitis. 23 0.6 12 0 Pruritus Includes pruritus generalized and pruritus. 12 0 6 0 Gastrointestinal Disorders Diarrhea 18 0.6 19 1.3 Abdominal pain Includes abdominal pain, abdominal pain lower, abdominal pain upper, and flank pain. 10 0.4 6 0.4 Endocrine Disorders Hypothyroidism Includes autoimmune hypothyroidism and hypothyroidism. 12 0.2 1.7 0 Other adverse reactions occurring in less than 10% of patients treated with IMFINZI were dysphonia, dysuria, night sweats, peripheral edema, and increased susceptibility to infections. Table 8 summarizes the laboratory abnormalities that occurred in at least 20% of patients treated with IMFINZI. Table 8. Laboratory Abnormalities Worsening from Baseline Occurring in ≥ 20% of Patients in the PACIFIC Study IMFINZI Placebo Laboratory Abnormality All Grades Graded according to NCI CTCAE version 4.0. (%) Each test incidence is based on the number of patients who had both baseline and at least one on-study laboratory measurement available: IMFINZI (range: 464 to 470) and placebo (range: 224 to 228). Grade 3 or 4 (%) All Grades (%) Grade 3 or 4 (%) Chemistry Hyperglycemia 52 8 51 8 Hypocalcemia 46 0.2 41 0 Increased ALT 39 2.3 22 0.4 Increased AST 36 2.8 21 0.4 Hyponatremia 33 3.6 30 3.1 Hyperkalemia 32 1.1 29 1.8 Increased GGT 24 3.4 22 1.7 Hematology Lymphopenia 43 17 39 18 Metastatic NSCLC - POSEIDON The safety of IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy in patients with metastatic NSCLC was evaluated in POSEIDON (NCT03164616), a randomized, open-label, multicenter, active-controlled study. A total of 330 patients received IMFINZI 1,500 mg in combination with tremelimumab-actl (≥ 30 kg body weight received 75 mg and < 30 kg body weight received 1 mg/kg) and histology-based platinum chemotherapy regimens [see Clinical Studies (14.1) ] . Of these patients, 66% received the maximum 5 doses of tremelimumab-actl and 79% received at least 4 doses. Treatment was continued with IMFINZI as a single agent (or with IMFINZI and histologically-based pemetrexed for non-squamous patients based on the investigator’s decision) until disease progression or unacceptable toxicity. The study excluded patients with active or prior autoimmune disease or with medical conditions that required systemic corticosteroids or immunosuppressants [see Clinical Studies (14.1) ]. The median age of patients who received IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy was 63 years (range: 27 to 87); 80% male; 61% White, 29% Asian, 58% former smoker, 25% current smoker, and 68% ECOG performance of 1. Serious adverse reactions occurred in 44% of patients receiving IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy. The most frequent serious adverse reactions reported in at least 2% of patients were pneumonia (11%), anemia (5%), diarrhea (2.4%), thrombocytopenia (2.4%), pyrexia (2.4%), and febrile neutropenia (2.1%). Fatal adverse reactions occurred in a total of 4.2% of patients receiving IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy. These include hepatitis, nephritis, myocarditis, pancreatitis (all in the same patient), death (2 patients), sepsis (2 patients), pneumonitis (2 patients), acute kidney injury (2 patients), febrile neutropenia (1 patient), chronic obstructive pulmonary disease (COPD) (1 patient), dyspnea (1 patient), sudden death (1 patient), and ischemic stroke (1 patient). Permanent discontinuation of IMFINZI or tremelimumab-actl due to an adverse reaction occurred in 17% of the patients. Adverse reactions which resulted in permanent discontinuation of IMFINZI or tremelimumab-actl in > 2% of patients included pneumonia. Dosage interruption or delay of IMFINZI and tremelimumab-actl due to an adverse reaction occurred in 41% of patients. Adverse reactions which required dosage interruption or delay of IMFINZI and tremelimumab-actl in > 1% of patients included anemia, leukopenia/white blood cell count decreased, pneumonia, pneumonitis, colitis, diarrhea, hepatitis, rash, asthenia, amylase increased, alanine aminotransferase increased, aspartate aminotransferase increased, lipase increased, neutropenia/ neutrophil count decreased, and thrombocytopenia/platelet count decreased. The most common adverse reactions (occurring in ≥ 20% of patients) were nausea, fatigue, musculoskeletal pain, decreased appetite, rash, and diarrhea. Grade 3 or 4 laboratory abnormalities (≥ 10%) were neutropenia, anemia, leukopenia, lymphocytopenia, lipase increased, hyponatremia and thrombocytopenia. Table 9 summarizes the adverse reactions in POSEIDON. Table 9. Adverse Reactions (≥ 10%) in Patients with NSCLC Who Received IMFINZI in the POSEIDON Study IMFINZI with tremelimumab-actl and platinum-based chemotherapy N = 330 Platinum-based chemotherapy N = 333 Adverse Reaction All Grades (%) Grade 3 or 4 (%) All Grades (%) Grade 3 or 4 (%) Gastrointestinal disorders Nausea 42 1.8 37 2.1 Diarrhea 22 1.5 15 1.5 Constipation 19 0 24 0.6 Vomiting 18 1.2 14 1.5 Stomatitis Includes mucosal inflammation and stomatitis. 10 0 6 0.3 General disorders and administration site conditions Fatigue/Asthenia Includes asthenia and fatigue. 36 5 32 4.5 Pyrexia Includes body temperature increased, hyperpyrexia, hyperthermia, and pyrexia. 19 0 8 0 Edema Includes face edema, localized edema, and edema peripheral. 10 0 10 0.6 Musculoskeletal and connective tissue disorders Musculoskeletal Pain Includes arthralgia, arthritis, back pain, bone pain, musculoskeletal chest pain, musculoskeletal pain, myalgia, neck pain, non-cardiac chest pain, and spinal pain. 29 0.6 22 1.5 Metabolism and nutrition disorders Decreased appetite 28 1.5 25 1.2 Skin and subcutaneous tissue disorders Rash Includes eczema, erythema, dermatitis, drug eruption, erythema multiforme, pemphigoid, rash, rash maculo-papular, rash papular, rash pruritic, and rash pustular. 27 2.4 10 0.6 Pruritus 11 0 4.5 0 Alopecia 10 0 6 0 Infections and Infestations Pneumonia Includes lower respiratory tract infection, pneumocystis jirovecii pneumonia, pneumonia, pneumonia aspiration, and pneumonia bacterial. 17 8 12 4.2 Upper respiratory tract infections Includes laryngitis, nasopharyngitis, pharyngitis, rhinitis, sinusitis, tonsillitis, tracheobronchitis and upper respiratory tract infection. 15 0.6 9 0.9 Endocrine disorders Hypothyroidism Includes blood thyroid stimulating hormone increased and hypothyroidism. 13 0 2.1 0 Respiratory, thoracic and mediastinal disorders Cough/Productive Cough Includes cough and productive cough. 12 0 8 0.3 Nervous system disorders Headache Includes headache and migraine. 11 0 8 0.6 Table 10 summarizes the laboratory abnormalities in POSEIDON. Table 10. Select Laboratory Abnormalities (≥ 10%) That Worsened from Baseline in Patients with NSCLC Who Received IMFINZI in the POSEIDON Study Laboratory Abnormality Graded according to NCI CTCAE version 4.03. IMFINZI with tremelimumab-actl and platinum-based chemotherapy The denominator used to calculate the rate varied from 45 to 326 based on the number of patients with a baseline value and at least one post-treatment value. Platinum-based chemotherapy The denominator used to calculate the rate varied from 43 to 323 based on the number of patients with a baseline value and at least one post-treatment value. All Grades (%) Grade 3 or 4 (%) All Grades (%) Grade 3 or 4 (%) Chemistry Blood creatinine increased 89 4 83 1.9 Increased ALT 64 6 56 4.7 Increased AST 63 5 55 2.2 Hypocalcemia 58 0.9 49 0.9 Hyponatremia 55 13 50 11 Hyperkalemia 49 2.2 35 2.8 Hyperglycemia 42 6 37 3.1 Amylase increased 41 9 25 6 Gamma Glutamyl Transferase increased 38 2.2 35 4.7 Lipase increased 35 14 25 5 Increased Alkaline Phosphatase 33 3.4 26 1.2 Albumin decreased 27 1.9 18 0.9 Hypokalemia 21 7 17 2.8 Bilirubinemia 16 0.9 8 0.3 Hypernatremia 15 0 14 0 Hypomagnesemia 12 4 23 0 Hematology Anemia 84 24 84 25 Leukopenia 77 21 81 18 Neutropenia 71 37 69 32 Lymphocytopenia 67 20 60 19 Thrombocytopenia 53 11 54 12 Small Cell Lung Cancer Limited Stage Small Cell Lung Cancer – ADRIATIC The safety of IMFINZI as a single agent in patients with LS-SCLC without disease progression following completion of concurrent platinum-based chemoradiotherapy (60-66 Gy once daily over 6 weeks or 45 Gy twice daily over 3 weeks) within 42 days prior to initiation of study drug, was evaluated in the ADRIATIC study, a multicenter, randomized, double-blind, placebo-controlled study [see Clinical Studies (14.2) ]. A total of 262 patients received IMFINZI 1,500 mg every 4 weeks until disease progression or unacceptable toxicity or a maximum of 24 months. The study excluded patients with Stage I or II LS-SCLC who were considered medically operable and patients with active or prior autoimmune disease or with medical conditions that required systemic corticosteroids or immunosuppressants. The study population characteristics were: median age of 62 years (range: 28 to 84); 39% age 65 years or older, 6% age 75 years or older; 69% male; 50% white, 48% Asian, 1.3% other races; 4.2% Hispanic or Latino; 68% former smoker, 22% current smoker; and 51% had WHO performance status of 1. Sixty-seven percent of patients received a total radiation dose of 60 Gy to 66 Gy once daily and 27% of patients received a total radiation dose of 45 Gy twice daily. The median duration of exposure to IMFINZI was 9.2 months (range: 0.92 to 25) in the IMFINZI arm. Serious adverse reactions occurred in 30% of patients receiving IMFINZI. The most frequent serious adverse reactions reported in ≥ 1% of patients receiving IMFINZI were pneumonitis or radiation pneumonitis (12%), and pneumonia (5%). Fatal adverse reactions occurred in 2.7% of patients who received IMFINZI including pneumonia (1.5%), cardiac failure, encephalopathy and pneumonitis (0.4% each). Permanent discontinuation of IMFINZI due to adverse reactions occurred in 16% of the patients. Adverse reactions which resulted in permanent discontinuation of IMFINZI in ≥ 1% of patients included pneumonitis or radiation pneumonitis (9%) and pneumonia (1.5%). Dosage interruptions of IMFINZI due to an adverse reaction occurred in 35% of patients. Adverse reactions which required dosage interruption in ≥ 5% of patients included pneumonitis or radiation pneumonitis (17%). The most common adverse reactions occurring in ≥ 20% of patients receiving IMFINZI were pneumonitis or radiation pneumonitis (38%), and fatigue (21%). Table 11 summarizes the adverse reactions that occurred in patients treated with IMFINZI in the ADRIATIC study. Table 11. Adverse Reactions (≥ 10%) in Patients with LS-SCLC Who Received IMFINZI in the ADRIATIC Study IMFINZI (N=262) Placebo (N=265) Adverse Reaction All Grades (%) Grade 3 or 4 (%) All Grades (%) Grade 3 or 4 (%) Respiratory, thoracic and mediastinal disorders Pneumonitis or Radiation pneumonitis Includes pneumonitis, immune-mediated lung disease, interstitial lung disease, radiation pneumonitis, and lung radiation fibrosis 38 3.1 30 2.6 Cough/Productive cough 17 0 14 0 Dyspnea Includes dyspnea and exertional dyspnea. 11 0.4 7 0 General …

Lactation: Advise not to breastfeed. ( 8.2 )

8.1 Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, IMFINZI can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . There are no available data on the use of IMFINZI in pregnant women. In animal reproduction studies, administration of durvalumab to pregnant cynomolgus monkeys from the confirmation of pregnancy through delivery at exposure levels approximately 6 to 20 times higher than those observed at the clinical dose of 10 mg/kg based on area under the curve (AUC), resulted in an increase in premature delivery, fetal loss, and premature neonatal death ( see Data ). Human immunoglobulin G1 (IgG1) is known to cross the placental barrier; therefore, durvalumab has the potential to be transmitted from the mother to the developing fetus. Apprise pregnant women of the potential risk to a fetus. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Data Animal Data As reported in the literature, the PD-1/PD-L1 pathway plays a central role in preserving pregnancy by maintaining maternal immune tolerance to the fetus. In mouse allogeneic pregnancy models, disruption of PD-L1 signaling was shown to result in an increase in fetal loss. The effects of durvalumab on prenatal and postnatal development were evaluated in reproduction studies in cynomolgus monkeys. Durvalumab was administered from the confirmation of pregnancy through delivery at exposure levels approximately 6 to 20 times higher than those observed at a clinical dose of 10 mg/kg (based on AUC). Administration of durvalumab resulted in premature delivery, fetal loss (abortion and stillbirth), and increase in neonatal deaths. Durvalumab was detected in infant serum on postpartum Day 1, indicating the presence of placental transfer of durvalumab. Based on its mechanism of action, fetal exposure to durvalumab may increase the risk of developing immune-mediated disorders or altering the normal immune response and immune-mediated disorders have been reported in PD-1 knockout mice.

8.2 Lactation Risk Summary There are no data on the presence of durvalumab in human milk, its effects on the breastfed child, or the effects on milk production. Maternal IgG is known to be present in human milk. The effects of local gastrointestinal exposure and limited systemic exposure in the breastfed child to IMFINZI are unknown. Durvalumab was present in the milk of lactating cynomolgus monkeys and was associated with premature neonatal death (see Data). Because of the potential for adverse reactions in a breastfed child, advise women not to breastfeed during treatment with IMFINZI and for 3 months after the last dose. Refer to the Prescribing Information for the agents administered in combination with IMFINZI for recommended duration to not breastfeed, as appropriate. Data In lactating cynomolgus monkeys, durvalumab was present in breast milk at about 0.15% of maternal serum concentrations after administration of durvalumab from the confirmation of pregnancy through delivery at exposure levels approximately 6 to 20 times higher than those observed at the recommended clinical dose of 10 mg/kg (based on AUC). Administration of durvalumab resulted in premature neonatal death .

8.3 Females and Males of Reproductive Potential Pregnancy testing Verify pregnancy status of females of reproductive potential prior to initiating treatment with IMFINZI. Contraception Females IMFINZI can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1) ] . Advise females of reproductive potential to use effective contraception during treatment with IMFINZI and for 3 months following the last dose of IMFINZI. Refer to the Prescribing Information for the agents administered in combination with IMFINZI for recommended contraception duration, as appropriate.

8.4 Pediatric Use The safety and effectiveness of IMFINZI have not been established in pediatric patients. Safety and efficacy were assessed but not established in a multi-center, open-label study (NCT03837899) in 45 pediatric patients aged 1 to < 17 years with advanced solid tumors. All 45 patients received at least a single dose of IMFINZI, and 41 patients received IMFINZI in combination with tremelimumab-actl. No new safety signals were observed in pediatric patients in this study. Durvalumab systemic exposure in pediatric patients weighing ≥ 35 kg was within the range of values previously observed in adults given the same weight-based dose, whereas the systemic exposure in pediatric patients weighing < 35 kg was lower than that observed in adults.

8.5 Geriatric Use Of the 401 patients with resectable NSCLC treated with IMFINZI in combination with chemotherapy in the AEGEAN study, 209 (52%) patients were 65 years or older and 49 (12%) patients were 75 years or older. There were no overall clinically meaningful differences in safety or efficacy between patients ≥ 65 years of age and younger patients. Of the 476 patients with unresectable, Stage III NSCLC treated with IMFINZI in the PACIFIC study, 45% were 65 years or older, while 7.6% were 75 years or older. No overall differences in safety or effectiveness were observed between patients 65 years or older and younger patients. The PACIFIC study did not include sufficient numbers of patients aged 75 years and over to determine whether they respond differently from younger patients. Of the 330 patients with metastatic NSCLC treated with IMFINZI in combination with tremelimumab-actl and platinum-based chemotherapy, 143 (43%) patients were 65 years or older and 35 (11%) patients were 75 years or older. There were no clinically meaningful differences in safety or efficacy between patients 65 years or older and younger patients. Of the 262 patients with LS-SCLC treated with IMFINZI, 103 (39%) patients were 65 years or older and 15 (6%) patients were 75 years or older. There were no clinically meaningful differences in safety and efficacy between patients 65 years or older and younger patients. Of the 265 patients with ES-SCLC treated with IMFINZI in combination with chemotherapy 101 (38%) patients were 65 years or older and 19 (7.2%) patients were 75 years or older. There were no clinically meaningful differences in safety or efficacy between patients 65 years or older and younger patients. Of the 338 patients with BTC treated with IMFINZI in combination with chemotherapy in the TOPAZ-1 study, 158 (47%) patients were 65 years or older and 38 (11%) patients were 75 years or older. No overall differences in safety or effectiveness of IMFINZI have been observed between patients 65 years of age and older and younger adult patients. Of the 393 patients with uHCC treated with IMFINZI in combination with tremelimumab-actl, 50% of patients were 65 years of age or older and 13% of patients were 75 years of age or older. No overall differences in safety or effectiveness of IMFINZI have been observed between patients 65 years of age and older and younger adult patients. Of the 235 patients with endometrial cancer treated with IMFINZI with carboplatin and paclitaxel, 49% of patients were 65 years of age or older and 12% of patients were 75 years of age or older. No overall differences in safety or effectiveness of IMFINZI have been observed between patients 65 years of age and older and younger adult patients. Of the 530 patients with MIBC treated with IMFINZI in combination with gemcitabine and cisplatin in the NIAGARA study, 272 (51%) patients were 65 years or older, and 57 (11%) patients were 75 years or older. No overall differences in safety or effectiveness of IMFINZI have been observed between patients 65 years of age and older and younger adult patients. Of the 336 patients with NMIBC treated with IMFINZI in combination with BCG induction and maintenance in the POTOMAC study, 215 (64%) patients were > 65 years of age and 72 (21%) patients were >75 years of age or older. No overall differences in safety or effectiveness of IMFINZI were observed between patients >65 years of age and younger adult patients. Of the 475 patients with resectable GC/GEJC treated with IMFINZI in combination with FLOT chemotherapy in the MATTERHORN study, 184 (39%) patients were 65 years or older and 37 (8%) patients were 75 years or older. No overall differences in safety or effectiveness were observed between patients ≥ 65 years of age and younger adult patients.