IMCIVREE has a well-established safety and tolerability profile1,2

Adverse reactions occurring in 3 or more IMCIVREE-treated patients 2 to <6 years of age (N=12)1*

 (%)
Skin hyperpigmentation183
Injection site reactions267
Vomiting58
Nasopharyngitis42
Melanocytic nevus333
Fall33
Fever33
Upper respiratory tract infection33
Cough25
Diarrhea25

Adverse reactions occurring in 2 or more IMCIVREE-treated patients 6 years of age and older (N=43)

 (%)
Skin hyperpigmentation#63
Injection site reactions**51
Nausea26
Spontaneous penile erection††25
Vomiting19
Diarrhea14
Melanocytic nevus14
Headache7
Skin striae7
Aggression5
Fatigue5

*Safety analysis was conducted in 12 patients (7 with POMC or LEPR deficiency and 5 with BBS).1

Includes skin hyperpigmentation, ephelides, nail pigmentation, pigmentation lip, skin discoloration, gingival hyperpigmentation.1

Includes injection site bruising, pruritus, discoloration, erythema, induration, edema, pain, urticaria.1

Includes new melanocyte nevus formation, increased melanocyte nevus size, and darkening of pre-existing melanocytic nevus.1

Forty three 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.1

**  Includes injection site erythema, pruritus, induration, pain, bruising, edema, reaction, hemorrhage, irritation, mass.1

††n=20 male patients.1

AEs were generally mild and transient2,3

In the clinical trial for patients 2 to <6 years of age1,4,5:

  • Reported incidences of nausea and vomiting primarily occurred within the first month of treatment. Vomiting was observed at a higher incidence in the study for patients 2 to <6 years of age compared with other IMCIVREE studies in patients 6 years of age and older
    • Nearly all vomiting events were mild, none were serious, and all resolved

In the clinical trial for patients 6 years of age and older:

  • Reported incidences of nausea and vomiting primarily occurred within the first month of treatment, then sharply declined after 4 weeks5
    • Nearly all nausea or vomiting events were mild, none were serious, and all typically resolved within a few days5,6
    • Nausea and vomiting should be managed by dose titration and standard care1
  • The safety of IMCIVREE has been evaluated in >700 patients over 10+ years7

AE=adverse event.

Hyperpigmentation is common1,8

  • IMCIVREE is an MC4R agonist, but has some residual activity at the MC1R which commonly leads to hyperpigmentation3
  • The activation of the MC1 receptor leads to accumulation of melanin which leads to hyperpigmentation4,9
  • The degree of hyperpigmentation is highly variable10
  • In clinical trials, measures of hyperpigmentation increased throughout the dose escalation period, and generally plateaued in the initial months of treatment1,4
  • Hyperpigmentation is reversible after treatment discontinuation2
  • 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. Data on file. Rhythm Pharmaceuticals, Inc. Boston, MA. 3. Collet TH, Dubern B, Mokrosinski J, et al. Evaluation of a melanocortin-4 receptor (MC4R) agonist (Setmelanotide) in MC4R deficiency. Molecular Metabolism. 2017;6(10):1321-1329. doi:10.1016/j.molmet.2017.06.015. 4. 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. 5. Data on file. Rhythm Pharmaceuticals, Inc. Boston, MA. 6. Argente J et al. Endocrine Society Annual Meeting. Poster ODP606. June 11-14, 2022. 7. U.S. National Library of Medicine. Identifier: setmelanotide. ClinicalTrials.gov. Accessed January 15, 2025. 8. Argente J et al. The Pediatric Endocrine Society Annual Meeting. Poster 155. April 28-May 1, 2022. 9. Wolf Horrell EM, Boulanger MC, D'Orazio JA. Melanocortin 1 Receptor: Structure, Function, and Regulation. Front Genet. 2016 May 31;7:95. doi: 10.3389/fgene.2016.00095. 10. Kanti V, Puder L, Jahnke I, et al. A Melanocortin-4 Receptor Agonist Induces Skin and Hair Pigmentation in Patients with Monogenic Mutations in the Leptin-Melanocortin Pathway. Skin Pharmacol Physiol. 2021;34(6):307-316. doi:10.1159/000516282.

Indication

IMCIVREE is indicated to reduce excess body weight and maintain weight reduction long term in adults and pediatric patients aged 2 years and older with syndromic or monogenic obesity due to Bardet-Biedl syndrome (BBS).

Limitations of Use

IMCIVREE is not indicated for the treatment of patients with the following conditions as IMCIVREE would not be expected to be effective:

  • Other types of obesity not related to BBS or other FDA-approved indications for IMCIVREE, including obesity associated with other genetic syndromes and general (polygenic) obesity
Important Safety Information

CONTRAINDICATIONS

Prior serious hypersensitivity to setmelanotide or any of the excipients in IMCIVREE. Serious hypersensitivity reactions (e.g., anaphylaxis) have been reported.

WARNINGS AND PRECAUTIONS

Disturbance in Sexual Arousal: Spontaneous penile erections in males and sexual adverse reactions in females have occurred. Inform patients that these events may occur and instruct patients who have an erection lasting longer than 4 hours to seek emergency medical attention.

Depression and Suicidal Ideation: Depression, suicidal ideation, and depressed mood have occurred. Monitor patients for new onset or worsening depression or suicidal thoughts or behaviors. Consider discontinuing IMCIVREE if patients experience suicidal thoughts or behaviors, or clinically significant or persistent depression symptoms occur.

Hypersensitivity Reactions: Serious hypersensitivity reactions (e.g., anaphylaxis) have been reported. If suspected, advise patients to promptly seek medical attention and discontinue IMCIVREE.

Skin Hyperpigmentation, Darkening of Pre-existing Nevi, and Development of New Melanocytic Nevi: Generalized or focal increases in skin pigmentation, darkening of pre-existing nevi, development of new melanocytic nevi and increase in size of existing melanocytic nevi have occurred. Perform a full body skin examination prior to initiation and periodically during treatment to monitor pre-existing and new pigmentary lesions.

Risk of Serious Adverse Reactions Due to Benzyl Alcohol Preservative in Neonates and Low Birth Weight Infants: IMCIVREE is not approved for use in neonates or infants. Serious and fatal adverse reactions including “gasping syndrome” can occur in neonates and low birth weight infants treated with benzyl alcohol-preserved drugs.

ADVERSE REACTIONS

  • Most common adverse reactions (incidence ≥20%) included skin hyperpigmentation, injection site reactions, nausea, headache, diarrhea, abdominal pain, vomiting, depression, and spontaneous penile erection

USE IN SPECIFIC POPULATIONS

Treatment with IMCIVREE is not recommended when breastfeeding. Discontinue IMCIVREE when pregnancy is recognized unless the benefits of therapy outweigh the potential risks to the fetus.

To report SUSPECTED ADVERSE REACTIONS, contact Rhythm Pharmaceuticals at 833-789-6337 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Please see the full Prescribing Information for additional Important Safety Information.

Important Safety Information

Indication

IMCIVREE is indicated to reduce excess body weight and maintain weight reduction long term in adults and pediatric patients aged 2 years and older with syndromic or monogenic obesity due to Bardet-Biedl syndrome (BBS).

Limitations of Use

IMCIVREE is not indicated for the treatment of patients with the following conditions as IMCIVREE would not be expected to be effective:

  • Other types of obesity not related to BBS or other FDA-approved indications for IMCIVREE, including obesity associated with other genetic syndromes and general (polygenic) obesity
Important Safety Information

CONTRAINDICATIONS

Prior serious hypersensitivity to setmelanotide or any of the excipients in IMCIVREE. Serious hypersensitivity reactions (e.g., anaphylaxis) have been reported.

WARNINGS AND PRECAUTIONS

Disturbance in Sexual Arousal: Spontaneous penile erections in males and sexual adverse reactions in females have occurred. Inform patients that these events may occur and instruct patients who have an erection lasting longer than 4 hours to seek emergency medical attention.

Depression and Suicidal Ideation: Depression, suicidal ideation, and depressed mood have occurred. Monitor patients for new onset or worsening depression or suicidal thoughts or behaviors. Consider discontinuing IMCIVREE if patients experience suicidal thoughts or behaviors, or clinically significant or persistent depression symptoms occur.

Hypersensitivity Reactions: Serious hypersensitivity reactions (e.g., anaphylaxis) have been reported. If suspected, advise patients to promptly seek medical attention and discontinue IMCIVREE.

Skin Hyperpigmentation, Darkening of Pre-existing Nevi, and Development of New Melanocytic Nevi: Generalized or focal increases in skin pigmentation, darkening of pre-existing nevi, development of new melanocytic nevi and increase in size of existing melanocytic nevi have occurred. Perform a full body skin examination prior to initiation and periodically during treatment to monitor pre-existing and new pigmentary lesions.

Risk of Serious Adverse Reactions Due to Benzyl Alcohol Preservative in Neonates and Low Birth Weight Infants: IMCIVREE is not approved for use in neonates or infants. Serious and fatal adverse reactions including “gasping syndrome” can occur in neonates and low birth weight infants treated with benzyl alcohol-preserved drugs.

ADVERSE REACTIONS

  • Most common adverse reactions (incidence ≥20%) included skin hyperpigmentation, injection site reactions, nausea, headache, diarrhea, abdominal pain, vomiting, depression, and spontaneous penile erection

USE IN SPECIFIC POPULATIONS

Treatment with IMCIVREE is not recommended when breastfeeding. Discontinue IMCIVREE when pregnancy is recognized unless the benefits of therapy outweigh the potential risks to the fetus.

To report SUSPECTED ADVERSE REACTIONS, contact Rhythm Pharmaceuticals at 833-789-6337 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Please see the full Prescribing Information for additional Important Safety Information.