Rimegepant Sulfate

NURTEC ODT is a calcitonin gene-related peptide receptor antagonist indicated for the: acute treatment of migraine with or without aura in adults ( 1.1 ) preventive treatment of episodic migraine in adults ( 1.2 )

1.1 Acute Treatment of Migraine NURTEC ODT is indicated for the acute treatment of migraine with or without aura in adults .

1.2 Preventive Treatment of Episodic Migraine NURTEC ODT is indicated for the preventive treatment of episodic migraine in adults.

Recommended dosage for acute treatment of migraine: 75 mg taken orally, as needed. ( 2.1 ) The safety of using more than 18 doses in a 30-day period has not been established. ( 2.1 ) Recommended dosage for preventive treatment of episodic migraine: 75 mg taken orally every other day. ( 2.2 ) The maximum dose in a 24-hour period is 75 mg. ( 2.1 )

2.1 Recommended Dosing for Acute Treatment of Migraine The recommended dose of NURTEC ODT is 75 mg taken orally, as needed. The maximum dose in a 24-hour period is 75 mg. The safety of using more than 18 doses in a 30-day period has not been established.

2.2 Recommended Dosing for Preventive Treatment of Episodic Migraine The recommended dosage of NURTEC ODT is 75 mg taken orally every other day.

2.3 Administration Information Instruct the patient on the following administration instructions: Use dry hands when opening the blister pack. Peel back the foil covering of one blister and gently remove the orally disintegrating tablet (ODT). Do not push the ODT through the foil. As soon as the blister is opened, remove the ODT and place on the tongue; alternatively, the ODT may be placed under the tongue. The ODT will disintegrate in saliva so that it can be swallowed without additional liquid. Take the ODT immediately after opening the blister pack. Do not store the ODT outside the blister pack for future use.

2.4 Concomitant Administration with Strong or Moderate CYP3A4 Inhibitors Avoid concomitant administration of NURTEC ODT with strong inhibitors of CYP3A4. Avoid another dose of NURTEC ODT within 48 hours when it is concomitantly administered with moderate inhibitors of CYP3A4 [see Drug Interactions (7.1) , Clinical Pharmacology (12.3) ].

2.5 Concomitant Administration with Strong or Moderate CYP3A Inducers Avoid concomitant administration of NURTEC ODT with strong or moderate inducers of CYP3A, which may lead to loss of efficacy of NURTEC ODT [see Drug Interactions (7.2) , Clinical Pharmacology (12.3) ] .

2.6 Concomitant Administration with Potent Inhibitors of P-gp Avoid another dose of NURTEC ODT within 48 hours when it is concomitantly administered with potent inhibitors of P-gp [see Drug Interactions (7.3) , Clinical Pharmacology (12.3) ].

Orally disintegrating tablets: white to off-white, circular, and debossed with the symbol , each containing 75 mg of rimegepant. NURTEC ODT orally disintegrating tablets: 75 mg ( 3 ) Image

NURTEC ODT is contraindicated in patients with a history of hypersensitivity reaction to rimegepant, NURTEC ODT, or any of its components.Reactions have included anaphylaxis and delayedserious hypersensitivity [see Warnings and Precautions (5.1) ] . Patients with a history of hypersensitivity reaction to rimegepant, NURTEC ODT, or to any of its components. ( 4 )

5 WARNINGS AND PRECAUTIONS Hypersensitivity Reactions: If a serious hypersensitivity reaction occurs, discontinue NURTEC ODT and initiate appropriate therapy. Severe hypersensitivity reactions have included anaphylaxis, dyspnea, and rash, and can occur days after administration. ( 5.1 ) Hypertension: New-onset or worsening of pre-existing hypertension may occur. ( 5.2 ) Raynaud’s Phenomenon: New-onset or worsening of pre-existing Raynaud’s phenomenon may occur. ( 5.3 )

5.1 Hypersensitivity Reactions Serious hypersensitivityreactions, includinganaphylaxis, dyspnea, and rash, have occurredin patients treatedwith NURTEC ODT. Hypersensitivity reactions can occur days after administration, and delayed serious hypersensitivity has occurred. If a hypersensitivity reaction occurs, discontinue NURTEC ODT and initiate appropriate therapy [see Contraindications (4) and Adverse Reactions (6.1 , 6.2) ].

5.2 Hypertension Development of hypertension and worsening of pre-existing hypertension have been reported following the use of CGRP antagonists, including NURTEC ODT, in the postmarketing setting. Some of the patients who developed new-onset hypertension had risk factors for hypertension. There were cases requiring initiation of pharmacological treatment for hypertension and, in some cases, hospitalization. Hypertension may occur at any time during treatment, but was most frequently reported within 7 days of therapy initiation. NURTEC ODT was discontinued in many of the reported cases. Monitor patients treated with NURTEC ODT for new-onset hypertension or worsening of pre-existing hypertension, and consider whether discontinuation of NURTEC ODT is warranted if evaluation fails to establish an alternative etiology or blood pressure is inadequately controlled.

5.3 Raynaud’s Phenomenon Development of Raynaud’s phenomenon and recurrence or worsening of pre-existing Raynaud’s phenomenon have been reported in the postmarketing setting following the use of CGRP antagonists, including NURTEC ODT. In reported cases with small molecule CGRP antagonists, symptom onset occurred a median of 1.5 days following dosing. Many of the cases reported serious outcomes, including hospitalizations and disability, generally related to debilitating pain. In most reported cases, discontinuation of the CGRP antagonist resulted in resolution of symptoms. NURTEC ODT should be discontinued if signs or symptoms of Raynaud’s phenomenon develop, and patients should be evaluated by a healthcare provider if symptoms do not resolve. Patients with a history of Raynaud’s phenomenon should be monitored for, and informed about the possibility of, worsening or recurrence of signs and symptoms.

Strong CYP3A4 Inhibitors: Avoid concomitant administration. ( 7.1 ) Moderate CYP3A4 Inhibitors: Avoid another dose within 48 hours when administered with a moderate CYP3A4 inhibitor. ( 7.1 ) Strong and Moderate CYP3A Inducers: Avoid concomitant administration. ( 7.2 ) Potent Inhibitors of P-gp: Avoid another dose of NURTEC ODT within 48 hours when administered with a potent P-gp inhibitor. ( 7.3 )

7.1 CYP3A4 Inhibitors Concomitant administration of NURTEC ODT with strong inhibitors of CYP3A4 results in a significant increase in rimegepant exposure. Avoid concomitant administration of NURTEC ODT with strong inhibitors of CYP3A4 [see Clinical Pharmacology (12.3) ] . Concomitant administration of NURTEC ODT with moderate inhibitors of CYP3A4 may result in increased exposure of rimegepant. Avoid another dose of NURTEC ODT within 48 hours when it is concomitantly administered with moderate inhibitors of CYP3A4 [see Clinical Pharmacology (12.3) ] .

7.2 CYP3A Inducers Concomitant administration of NURTEC ODT with strong or moderate inducers of CYP3A can result in a significant reduction in rimegepant exposure, which may lead to loss of efficacy of NURTEC ODT. Avoid concomitant administration of NURTEC ODT with strong or moderate inducers of CYP3A [see Clinical Pharmacology (12.3) ] .

7.3 P-gp Inhibitors Concomitant administration of NURTEC ODT with potent inhibitors of P-gp (e.g., amiodarone, cyclosporine, lapatinib, quinidine, ranolazine) may result in increased exposure of rimegepant. Avoid another dose of NURTEC ODT within 48 hours when it is concomitantly administered with potent inhibitors of P-gp [see Clinical Pharmacology (12.3) ] .

The following clinically significant adverse reactions are discussed in greater detail in other sections of the labeling: Hypersensitivity Reactions [see Warnings and Precautions (5.1) ] Hypertension [see Warnings and Precautions (5.2) ] Raynaud’s Phenomenon [see Warnings and Precautions (5.3) ] Acute treatment of migraine: the adverse reaction reported in ≥ 1% of patients treated with NURTEC ODT is nausea. ( 6.1 ) Preventive treatment of episodic migraine: adverse reactions reported in ≥ 2% for rimegepant and ≥ 1% higher than placebo are nausea and abdominal pain/dyspepsia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 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 clinical practice. Acute Treatment of Migraine The safety of NURTEC ODT for the acute treatment of migraine in adults has been evaluated in a randomized, double-blind, placebo-controlled trial (Study 1) in 682 patients with migraine who received one 75 mg dose of NURTEC ODT [see Clinical Studies (14) ] . Approximately 85% were female, 74% were White, 21% were Black, and 17% were Hispanic or Latino. The mean age at study entry was 40 years (range 18-75 years of age). Long-term safety was assessed in an open-label extension study using a different oral dosage form of rimegepant. That study evaluated 1,798 patients, dosing intermittently for up to one year, including 1,131 patients who were exposed to rimegepant 75 mg for at least 6 months, and 863 who were exposed for at least one year, all of whom treated an average of at least two migraine attacks per month. The most common adverse reaction in Study 1 was nausea (2% in patients who received NURTEC ODT compared to 0.4% of patients who received placebo). Hypersensitivity, including dyspnea and severe rash, occurred in less than 1% of patients treated with NURTEC ODT [see Contraindications (4) and Warnings and Precautions (5.1) ] . Preventive Treatment of Episodic Migraine The safety of NURTEC ODT for the preventive treatment of episodic migraine in adults has been established in a randomized, double-blind, placebo-controlled trial with an open-label extension (Study 2) using a different oral dosage form of rimegepant [see Clinical Studies (14) ] . In the 12-week, double-blind treatment period, 370 patients with migraine received one 75 mg dose of rimegepant every other day . Approximately 81% were female, 80% were White, 17% were Black, and 28% were Hispanic or Latino. The mean age at study entry was 41 years (range 18-74 years of age). Long-term safety was assessed in an open-label extension study that included 603 patients who were treated for up to one year. Overall, 527 patients were exposed to rimegepant 75 mg for at least 6 months, and 311 were exposed for at least one year. The most common adverse reactions (occurring in at least 2% of rimegepant-treated patients and at a frequency of at least 1% higher than placebo) in Study 2 were nausea (2.7% in patients who received rimegepant compared with 0.8% of patients who received placebo) and abdominal pain/dyspepsia (2.4% in patients who received rimegepant compared with 0.8% of patients who received placebo).

6.2 Postmarketing Experience The following adverse reactions have been identified during postapproval use of NURTEC ODT. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Immune System Disorders : Hypersensitivity (e.g., anaphylaxis) [see Contraindications (4) and Warnings and Precautions (5.1) ] Vascular Disorders : Hypertension [see Warnings and Precautions (5.2) ] , Raynaud’s phenomenon [see Warnings and Precautions (5.3) ]

There is limited clinical experience with NURTEC ODT overdosage. Treatment of an overdose of NURTEC ODT should consist of general supportive measures including monitoring of vital signs and observation of the clinical status of the patient. No specific antidote for the treatment of rimegepant overdose is available. Rimegepant is unlikely to be significantly removed by dialysis because of high serum protein binding [see Clinical Pharmacology (12.3) ] .

Exposures were significantly higher in subjects with severe hepatic impairment. Avoid use in patients with severe hepatic impairment (Child-Pugh C). ( 8.6 )

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to NURTEC ODT during pregnancy. For more information, healthcare providers or patients are encouraged to contact: 1-877-366-0324, email nurtecpregnancyregistry@ppd.com, or visit nurtecpregnancyregistry.com . Risk Summary There are no adequate data on the developmental risk associated with the use of NURTEC ODT in pregnant women. In animal studies, oral administration of rimegepant during organogenesis resulted in adverse effects on development in rats (decreased fetal body weight and increased incidence of skeletal variations) at exposures greater than those used clinically and which were associated with maternal toxicity (see Data ) . 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. The estimated rate of major birth defects (2.2 to 2.9%) and miscarriage (17%) among deliveries to women with migraine are similar to rates reported in women without migraine. Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk Published data have suggested that women with migraine may be at increased risk of preeclampsia and gestational hypertension during pregnancy. Data Animal Data Oral administration of rimegepant (0, 10, 60, or 300 mg/kg/day) to pregnant rats during the period of organogenesis resulted in decreased fetal body weight and an increased incidence of fetal skeletal variations at the highest dose tested (300 mg/kg/day), which was associated with maternal toxicity. Plasma exposures (AUC) at the no-effect dose (60 mg/kg/day) for adverse effects on embryofetal development were approximately 45 times that in humans at the maximum recommended human dose (MRHD) of 75 mg/day. Oral administration of rimegepant (0, 10, 25, or 50 mg/kg/day) to pregnant rabbits during the period of organogenesis resulted in no adverse effects on embryofetal development. The highest dose tested (50 mg/kg/day) was associated with plasma exposures (AUC) approximately 10 times that in humans at the MRHD. Oral administration of rimegepant (0, 10, 25, or 60 mg/kg/day) to rats throughout gestation and lactation resulted in no effects on pre- or postnatal development. The highest dose tested (60 mg/kg/day) was associated with plasma exposures (AUC) approximately 24 times that in humans at the MRHD.

8.2 Lactation Risk Summary A lactation study was conducted, and the results have established a relative infant dose of less than 1% of the maternal weight-adjusted dose and the milk-to-plasma ratio of 0.20 (see Data ) . These data support that transfer of rimegepant into breastmilk is low. There are no data on the effects of rimegepant on a breastfed infant or on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for NURTEC ODT and any potential adverse effects on the breastfed infant from NURTEC ODT or from the underlying maternal condition. Data A study was conducted in twelve healthy adult lactating women who were between 2 weeks and 6 months postpartum and were administered a single oral dose of rimegepant 75 mg. The relative infant dose was < 1%. The average milk to plasma ratio was 0.20.

8.4 Pediatric Use Safety and effectiveness in pediatric patients have not been established.

8.5 Geriatric Use In pharmacokinetic studies, no clinically significant pharmacokinetic differences were observed between elderly and younger subjects. Clinical studies of NURTEC ODT did not include sufficient numbers of patients aged 65 and over to determine whether they respond differently from younger patients.

8.6 Hepatic Impairment No dosage adjustment of NURTEC ODT is required in patients with mild (Child-Pugh A) or moderate (Child-Pugh B) hepatic impairment. Plasma concentrations of rimegepant were significantly higher in subjects with severe (Child-Pugh C) hepatic impairment. Avoid use of NURTEC ODT in patients with severe hepatic impairment [see Clinical Pharmacology (12.3) ] .

8.7 Renal Impairment No dosage adjustment of NURTEC ODT is required in patients with mild, moderate, or severe renal impairment. NURTEC ODT has not been studied in patients with end-stage renal disease and in patients on dialysis. Avoid use of NURTEC ODT in patients with end-stage renal disease (CLcr < 15 mL/min) [see Clinical Pharmacology (12.3) ] .

Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to NURTEC ODT during pregnancy. For more information, healthcare providers or patients are encouraged to contact: 1-877-366-0324, email nurtecpregnancyregistry@ppd.com, or visit nurtecpregnancyregistry.com . Risk Summary There are no adequate data on the developmental risk associated with the use of NURTEC ODT in pregnant women. In animal studies, oral administration of rimegepant during organogenesis resulted in adverse effects on development in rats (decreased fetal body weight and increased incidence of skeletal variations) at exposures greater than those used clinically and which were associated with maternal toxicity (see Data ) . 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. The estimated rate of major birth defects (2.2 to 2.9%) and miscarriage (17%) among deliveries to women with migraine are similar to rates reported in women without migraine. Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk Published data have suggested that women with migraine may be at increased risk of preeclampsia and gestational hypertension during pregnancy. Data Animal Data Oral administration of rimegepant (0, 10, 60, or 300 mg/kg/day) to pregnant rats during the period of organogenesis resulted in decreased fetal body weight and an increased incidence of fetal skeletal variations at the highest dose tested (300 mg/kg/day), which was associated with maternal toxicity. Plasma exposures (AUC) at the no-effect dose (60 mg/kg/day) for adverse effects on embryofetal development were approximately 45 times that in humans at the maximum recommended human dose (MRHD) of 75 mg/day. Oral administration of rimegepant (0, 10, 25, or 50 mg/kg/day) to pregnant rabbits during the period of organogenesis resulted in no adverse effects on embryofetal development. The highest dose tested (50 mg/kg/day) was associated with plasma exposures (AUC) approximately 10 times that in humans at the MRHD. Oral administration of rimegepant (0, 10, 25, or 60 mg/kg/day) to rats throughout gestation and lactation resulted in no effects on pre- or postnatal development. The highest dose tested (60 mg/kg/day) was associated with plasma exposures (AUC) approximately 24 times that in humans at the MRHD.

Safety and effectiveness in pediatric patients have not been established.

In pharmacokinetic studies, no clinically significant pharmacokinetic differences were observed between elderly and younger subjects. Clinical studies of NURTEC ODT did not include sufficient numbers of patients aged 65 and over to determine whether they respond differently from younger patients.

NURTEC ODT contains rimegepant sulfate, a calcitonin gene-related peptide receptor antagonist. Rimegepant sulfate is described chemically as (5S,6S,9R)-5-amino-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-yl 4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)-1-piperidinecarboxylate hemisulfate sesquihydrate and its structural formula is: Its empirical formula is C 28 H 28 F 2 N 6 O 3 0.5 H 2 SO 4 1.5 H 2 O, representing a molecular weight of 610.63. Rimegepant free base has a molecular weight of 534.56. Rimegepant sulfate is a white to off-white, crystalline solid that is slightly soluble in water. NURTEC ODT (orally disintegrating tablets) is for sublingual or oral use and contains 85.7 mg rimegepant sulfate, equivalent to 75 mg rimegepant free base, and the following inactive ingredients: benzyl alcohol, eucalyptol, gelatin, limonene, mannitol, menthol, menthone, menthyl acetate, sucralose, and vanillin. Chemical Structure

Rimegepant is a calcitonin gene-related peptide receptor antagonist.

The relationship between pharmacodynamic activity and the mechanism(s) by which rimegepant exerts its clinical effects is unknown. No clinically relevant differences in resting blood pressure were observed when rimegepant was concomitantly administered with sumatriptan (12 mg subcutaneous, given as two 6 mg doses separated by one hour) compared with sumatriptan alone to healthy volunteers. Cardiac Electrophysiology At a single dose 4 times the recommended dose, rimegepant does not prolong the QT interval to any clinically relevant extent.

, Mutagenesis, Impairment of Fertility Carcinogenesis Oral administration of rimegepant to Tg.rasH2 mice (0, 10, 100, or 300 mg/kg/day) for 26 weeks and to rats (0, 5, 20, or 45 mg/kg/day) for 91-100 weeks resulted in no evidence of drug-induced tumors in either species. In rats, the plasma exposure (AUC) at the highest dose tested (45 mg/kg/day) was approximately 30 times that at the maximum recommended human dose (MRHD) of 75 mg/day. Mutagenesis Rimegepant was negative in in vitro (bacterial reverse-mutation, chromosomal aberration in Chinese hamster ovary cells) and in vivo (rat micronucleus) assays. Impairment of Fertility Oral administration of rimegepant (0, 30, 60, or 150 mg/kg/day) to male and female rats prior to and during mating and continuing in females to gestation day (GD) 7 resulted in reduced fertility at the highest dose tested. In a second fertility study testing lower doses (0, 5, 15, or 25 mg/kg/day), no adverse effects on fertility, uterine histopathology, or early embryonic development were observed. The no-effect dose for impairment of fertility and early embryonic development in rats (60 mg/kg/day) was associated with plasma drug exposures (AUC) approximately 30 times that in humans at the MRHD.

Store NURTEC ODT at controlled room temperature, 20°C to 25°C (68°F to 77°F); with excursions permitted between 15°C to 30°C (59°F to 86°F) [see USP controlled room temperature] .