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Emgality ® (galcanezumab-gnlm) injection100 mg/mL, 120 mg/mL
This information is provided in response to your request. Resources may contain information about doses, uses, formulations and populations different from product labeling. See Prescribing Information above, if applicable.
How should a missed or delayed cluster headache dose of EMGALITY® (galcanezumab-gnlm) be managed?
Administer a missed dose as soon as possible.
If a dose is missed during a cluster period, administer as soon as possible.1 Thereafter, galcanezumab can be scheduled monthly from the date of the last dose until the end of the cluster period.
Recommended Dosing for Episodic Cluster Headache
The recommended dose is 300 mg, 3 consecutive injections of 100 mg each, injected subcutaneously at the onset of the cluster period, and then monthly until the end of the cluster period.1
Dose Administration in Phase 3 Episodic Cluster Headache Study
Galcanezumab was studied in a phase 3 randomized, double-blind, placebo-controlled study in adults with episodic cluster headache.2
In the phase 3 episodic cluster headache trial, galcanezumab was dosed 10 to 15 days after the onset of a cluster period, to establish baseline, and then was administered monthly thereafter.2,3 In this study, dosing visits were scheduled at 30-day intervals, and subcutaneous injections were allowed to be administered 2 days before through 5 days after the scheduled visit.3
Galcanezumab has a
A dose of 300 mg monthly would achieve steady-state concentration after the fourth dose.1
Enclosed Prescribing Information
2. Goadsby PJ, Dodick DW, Leone M, et al. Trial of galcanezumab in prevention of episodic cluster headache. N Engl J Med. 2019;381(2):132-141. http://dx.doi.org/10.1056/NEJMoa1813440
4. Kielbasa W, Helton DL. A new era for migraine: Pharmacokinetic and pharmacodynamic insights into monoclonal antibodies with a focus on galcanezumab, an anti-CGRP antibody. Cephalalgia. 2019;39(10):1284-1297. http://dx.doi.org/10.1177/0333102419840780
t1/2 = elimination half-life
Tmax = time of maximum observed drug concentration
Date of Last Review: June 07, 2019