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

Adverse reactions occurring in 3 or more patients 2 to <6 years of age treated with IMCIVREE in an open-label clinical study of 1-year duration for POMC or LEPR deficiency or BBS.*1

Adverse reaction1N=12 (%)
Skin hyperpigmentations83%
Injection site reactions67%
Vomiting58%
Nasopharyngitis42%
Melanocytic nevus||33%
Adverse reaction1N=12 (%)
Fall33%
Fever33%
Upper respiratory tract infection33%
Cough25%
Diarrhea25%

*Safety analysis was conducted at the end of treatment in 12 patients (7 with POMC or LEPR deficiency and 5 with BBS). No patients with PCSK1 were enrolled in the trial1

Includes skin hyperpigmentation, ephelides, nail pigmentation, pigmentation lip, skin discoloration, gingival hyperpigmentation1

Includes injection site bruising, pruritus, discoloration, erythema, induration, oedema, pain, urticaria1

||Includes new melanocytic nevus formation, increased melanocytic nevus size, and darkening of pre-existing melanocytic nevus1

Adverse reactions occurring in ≥23% of people treated with IMCIVREE in open-label clinical studies of 1-year duration for POMC, PCSK1, or LEPR deficiency1

Adverse reaction1N=27 (%)
Injection site reaction96%
Skin hyperpigmentations#78%
Nausea56%
Headache41%
Diarrhea37%
Abdominal pain**33%
Adverse reaction1N=27 (%)
Back pain33%
Fatigue30%
Vomiting30%
Depression††26%
Upper respiratory tract infection26%
Spontaneous penile erection‡‡23%

Includes injection site erythema, pruritus, edema, pain, induration, bruising, injection site hypersensitivity, hematoma, nodule, and discoloration.1

#Includes skin hyperpigmentation, pigmentation disorders, and gingival discoloration.1

**Includes abdominal pain and upper abdominal pain.1

††Includes depressed mood.1

‡‡n=13 male patients.1

  • Nausea and vomiting primarily occurred within the first 4 weeks of treatment and typically resolved within a few days2
  • The safety of IMCIVREE has been evaluated in over 700 patients over 10+ years3

Hyperpigmentation is common1,4,5

  • IMCIVREE is an MC4R agonist, but has some residual activity at the MC1R which commonly leads to hyperpigmentation6
  • The activation of the MC1 receptor leads to accumulation of melanin which leads to hyperpigmentation7,8
  • The degree of hyperpigmentation is highly variable9
  • In clinical trials, measures of hyperpigmentation increased throughout the dose escalation period and generally plateaued in the initial months of treatment1,7
  • Hyperpigmentation is reversible after treatment discontinuation1
  • If hyperpigmentation is a concern, assess patient response to treatment to optimize tolerability and efficacy as you would with other adverse events

LEPR=leptin receptor; PCSK1=proprotein convertase subtilisin/kexin type 1; POMC=proopiomelanocortin.

References: 1. IMCIVREE [prescribing information]. Boston, MA. Rhythm Pharmaceuticals, Inc. 2. Data on file. Rhythm Pharmaceuticals, Inc. Boston, MA. 3. Rhythm Pharmaceuticals. Long term extension trial of setmelanotide. ClinicalTrials.gov identifier: NCT03651765. Last updated January 13, 2025. Accessed January 15, 2025. https://clinicaltrials.gov/study/NCT03651765. 4. Argente J, Clement K, van den Akker E, et al. Clinical safety summary of setmelanotide in healthy volunteers with obesity and patients with rare genetic diseases of obesity. Poster presented at the 2022 Pediatric Endocrine Society Annual Meeting. April 28-May 12, 2022. Poster 155. 5. Clément K, van den Akker E, Argente J, et al. Efficacy and safety of setmelanotide, an MC4R agonist, in individuals with severe obesity due to LEPR or POMC deficiency: single-arm, open-label, multicentre, phase 3 trials. Lancet Diabetes Endocrinol. 2020;8(12):960-970. doi:10.1016/S2213-8587(20)30364-8. 6. Collet TH, Dubern B, Mokrosinski J, et al. Evaluation of a melanocortin-4 receptor (MC4R) agonist (Setmelanotide) in MC4R deficiency. Mol Metab. 2017;6(10):1321-1329. doi:10.1016/j.molmet.2017.06.015. 7. Haqq AM, Chung WK, Dollfus H, et al. Efficacy and safety of setmelanotide, a melanocortin-4 receptor agonist, in patients with Bardet-Biedl syndrome and Alström syndrome: a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial with an open-label period. Lancet Diabetes Endocrinol. 2022;10(12):859-868. doi:10.1016/S2213-8587(22)00277-7. 8. Wolf Horrell EM, Boulanger MC, D'Orazio JA. Melanocortin 1 receptor: Structure, function, and regulation. Front Genet. 2016;7:95. Published 2016 May 31. doi:10.3389/fgene.2016.00095. 9. 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 pro-opiomelanocortin (POMC), proprotein convertase subtilisin/kexin type 1 (PCSK1), or leptin receptor (LEPR) deficiency as determined by an FDA-approved test demonstrating variants in POMC, PCSK1, or LEPR genes that are interpreted as pathogenic, likely pathogenic, or of uncertain significance (VUS).

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:

  • Obesity due to suspected POMC, PCSK1, or LEPR deficiency with POMC, PCSK1, or LEPR variants classified as benign or likely benign
  • Other types of obesity not related to POMC, PCSK1, or LEPR deficiency, 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 increased 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 pigmented 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 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 pro-opiomelanocortin (POMC), proprotein convertase subtilisin/kexin type 1 (PCSK1), or leptin receptor (LEPR) deficiency as determined by an FDA-approved test demonstrating variants in POMC, PCSK1, or LEPR genes that are interpreted as pathogenic, likely pathogenic, or of uncertain significance (VUS).

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:

  • Obesity due to suspected POMC, PCSK1, or LEPR deficiency with POMC, PCSK1, or LEPR variants classified as benign or likely benign
  • Other types of obesity not related to POMC, PCSK1, or LEPR deficiency, 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 increased 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 pigmented 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 full Prescribing Information for additional Important Safety Information.