(zavegepant)
The following clinically significant adverse reactions are discussed in greater detail in other sections of the labeling:
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.
The safety of ZAVZPRET for the acute treatment of migraine in adults has been evaluated in two randomized, double-blind, placebo-controlled trials (Study 1 and Study 2) in patients with migraine who received one 10 mg dose of ZAVZPRET nasal spray (N=1023) or placebo (N=1056) [see Clinical Studies (14)]. Approximately 83% were female, 81% were White, 20% were Hispanic or Latino, and 15% were Black. The mean age at study entry was 41 years (range 18-79 years of age).
Adverse reactions in Study 1 and 2 are shown in Table 1.
Table 1: Adverse Reactions Occurring in At Least 2% of Patients Treated with ZAVZPRET and at a Frequency Greater than Placebo in Study 1 and 2
| ||
Adverse Reaction | ZAVZPRET N=1023 % | Placebo N=1056 % |
Taste Disorders* | 18 | 4 |
Nausea | 4 | 1 |
Nasal Discomfort | 3 | 1 |
Vomiting | 2 | <1 |
Hypersensitivity, including facial swelling and urticaria, occurred in less than 1% of patients treated with ZAVZPRET [see Contraindications (4) and Warnings and Precautions (5.1)].
Long-term safety was assessed in an open-label extension study. That study evaluated 603 patients, dosing intermittently for up to one year, including 360 patients who were exposed to ZAVZPRET 10 mg for at least 6 months, and 298 who were exposed for at least one year, all of whom treated an average of at least two migraine attacks per month.
The following adverse reactions have been identified during postapproval use of ZAVZPRET. 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.
Vascular Disorders: Hypertension [see Warnings and Precautions (5.2)], Raynaud’s phenomenon [see Warnings and Precautions (5.3)].
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