IMCIVREE has a well-established safety and tolerability profile1,2
Adverse reactions occurring in 2 or more IMCIVREE-treated patients (n=43)1*
(%) | |
Hyperpigmentation disorders† | 63 |
Injection site reactions‡ | 51 |
Nausea | 26 |
Spontaneous penile erection§ | 25 |
Vomiting | 19 |
Diarrhea | 14 |
Headache | 7 |
Skin striae | 7 |
Aggression | 5 |
Fatigue | 5 |
*43 patients were treated with at least 1 dose of IMCIVREE; 1 patient initially randomized to placebo withdrew from the study prior to receiving IMCIVREE and is not included.1
†Includes skin hyperpigmentation, hair color changes, melanoderma, and melanocytic nevus.1
‡Includes injection site erythema, pruritus, induration, pain, bruising, edema, reaction, hemorrhage, irritation, and mass.1
§n=20 male patients.1
AEs were generally mild and transient1-5
- Reported incidences of nausea and vomiting primarily occurred within the first month of treatment, then sharply declined after 4 weeks
- Nearly all nausea or vomiting events were mild and none were serious
- Reported incidences of nausea and vomiting typically resolved within a few days in patients in IMCIVREE clinical trials
- Nausea and vomiting should be managed by dose titration and standard care
- No serious AEs related to IMCIVREE were reported in the BBS trial
- The safety of IMCIVREE has been evaluated in >700 patients over ~10 years of clinical trials
Hyperpigmentation was a common side effect1,3
- IMCIVREE is an MC4R agonist, but has some residual activity at the MC1R which commonly leads to hyperpigmentation
- The activation of the MC1 receptor leads to accumulation of melanin which leads to hyperpigmentation
- The degree of hyperpigmentation is highly variable
- In a clinical trial, measures of hyperpigmentation increased throughout the dose escalation period, and plateaued in the initial months of treatment
- Hyperpigmentation is reversible upon treatment discontinuation
- If hyperpigmentation is a concern, assess patient response to treatment to optimize tolerability and efficacy as you would with other adverse events
Managing adverse events with IMCIVREE
Hear physicians, patients, and caregivers share their experiences with IMCIVREE
AE=adverse event; MC4R=melanocortin-4 receptor; MC1R=melanocortin-1 receptor
References: 1. IMCIVREE [prescribing information]. Boston, MA. Rhythm Pharmaceuticals, Inc. 2. Argente J et al. The Pediatric Endocrine Society Annual Meeting. Poster 155. April 28-May 1, 2022. 3. Haqq AM et al. Lancet Diabetes Endocrinol. 2022;10(12):859-868. doi:10.1016/S2213-8587(22)00277-7. Supplemental appendix available at: https://www.thelancet.com/journals/landia/article/PIIS2213-8587(22)00277-7/fulltext. 4. Data on file. Rhythm Pharmaceuticals, Inc. Boston, MA. 5. U.S. National Library of Medicine. Identifier: NCT02431442. ClinicalTrials.gov. Accessed August 9, 2023.