The safety of Emgality was evaluated in a large clinical trial program in migraine prevention1
The most frequent adverse reactions in the EVOLVE-1, EVOLVE-2, and REGAIN clinical trials with Emgality were injection site reactions1a
Adverse Reactions Occurring in Adults With Migraine With an Incidence of at Least 2% for Emgality and at Least 2% Greater Than Placebo (up to 6 Months of Treatment) in EVOLVE-1, EVOLVE-2, and REGAIN1
| Adverse Reaction | Emgality 120 mg (N=705) | Placebo (N=1451) |
| Injection site reactionsa | 18% | 13% |
aInjection site reactions include multiple related adverse event terms, such as injection site pain, injection site reaction, injection site erythema, and injection site pruritus.
Across 3 studies (EVOLVE-1, EVOLVE-2, and REGAIN):
- 2 patients on Emgality 120 mg discontinued due to injection site reactions2-3
- <2% of patients on Emgality 120 mg discontinued double-blind treatment due to adverse events1,4
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The safety of Emgality was also evaluated for up to 2 months in a placebo-controlled study in patients with episodic cluster headache1b
Overall, the safety profile observed in patients with episodic cluster headache treated with Emgality 300 mg monthly was consistent with the safety profile in migraine patients with the frequency of injection site reactions reported at 16% for Emgality.1
- 2 patients treated with Emgality discontinued double-blind treatment because of adverse events
bEmgality Episodic Cluster Headache Study: Emgality 300 mg (N=49), placebo (N=57).1
No known drug interactions
Emgality is not metabolized by CYP450 enzymes; therefore, interactions with drugs that are substrates, inducers, or inhibitors of CYP450 are unlikely.1
Lilly continues to monitor the safety data of Emgality in the general population.
CYP450=cytochrome P450.
See study designs for EVOLVE-1, EVOLVE-2, and REGAIN.
See study design for episodic cluster headache.
SELECT IMPORTANT SAFETY INFORMATION
Hypertension
Development of hypertension and worsening of pre-existing hypertension have been reported following the use of CGRP antagonists, including Emgality, 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. Emgality was discontinued in many of the reported cases.
Monitor patients treated with Emgality for new-onset hypertension or worsening of pre-existing hypertension, and consider whether discontinuation of Emgality is warranted if evaluation fails to establish an alternative etiology or blood pressure is inadequately controlled.