Meaningful weight reduction in young children

In patients 2 to <6 years old with obesity due to POMC or LEPR deficiency

IMCIVREE delivered early and clinically meaningful weight reduction^1,2

~34% and ~13% mean reduction in BMI for patients with POMC and LEPR deficiency after 1 year, respectively.¹

IMCIVREE was studied in a 52-week, Phase 3 clinical trial assessing safety and efficacy in children 2 to <6 years of age with obesity due to POMC, PCSK1, or LEPR deficiency (POMC, n=3; LEPR, n=4).^1,2

Average Change in BMI Z-score Over 1 Year (POMC/LEPR Deficiency; n=7)^2,3

BMI Z-score reduction outcomes in children with POMC or LEPR deficiency over 52 weeks — In patients 2 to <6 years old with POMC or LEPR deficiency (n=7), there was a 5.19 mean reduction in BMI Z-score at week 52. 100% of patients with POMC deficiency and 75% of patients with LEPR deficiency achieved a clinically meaningful reduction of ≥0.2 in BMI Z-score.

5.19 mean reduction

in BMI Z-score at week 52

100% of patients with POMC deficiency and 75% of patients with LEPR deficiency achieved a clinically meaningful reduction of ≥0.2 in BMI Z-score.²

*A clinically meaningful reduction is generally considered a ≥0.2 reduction in BMI Z-score. A 0.2 reduction is comparable to weight loss of approximately 5%.²

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See efficacy data for IMCIVREE in adults and children 6 years and older.

See Efficacy for Ages 6+

BMI=body mass index, LEPR=leptin receptor, MC4R=melanocortin-4 receptor, PCSK1=proprotein convertase subtilisin/kexin type 1, POMC=proopiomelanocortin.

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 confirmed by genetic testing 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 and increased frequency of penile erections in males 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 and suicidal ideation 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 occurred in the majority of IMCIVREE-treated patients. IMCIVREE may also cause development of new melanocytic nevi or darkening of pre-existing nevi. Perform a full body skin examination prior to initiation and periodically during treatment to monitor pre-existing and new pigmented lesions.

Adverse Reactions

Most common adverse reactions (incidence ≥20%) included injection site reactions, skin hyperpigmentation, nausea, headache, diarrhea, abdominal pain, back pain, fatigue, vomiting, depression, upper respiratory tract infection, 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.

Please see full Prescribing Information for additional Important Safety Information.

References: 1. IMCIVREE [prescribing information]. Boston, MA. Rhythm Pharmaceuticals, Inc., 2026. 2. Argente J, Verge CF, Okorie U, et al. Setmelanotide in patients aged 2-5 years with rare MC4R pathway-associated obesity (VENTURE): a 1 year, open-label, multicenter, phase 3 trial. Lancet Diabetes Endocrinol. 2025;13(1):29-37. doi:10.1016/S2213-8587(24)00273-0 3. Data on file. Rhythm Pharmaceuticals, Inc. Boston, MA.

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 confirmed by genetic testing 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 and increased frequency of penile erections in males 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 and suicidal ideation 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 occurred in the majority of IMCIVREE-treated patients. IMCIVREE may also cause development of new melanocytic nevi or darkening of pre-existing nevi. Perform a full body skin examination prior to initiation and periodically during treatment to monitor pre-existing and new pigmented lesions.

Adverse Reactions

Most common adverse reactions (incidence ≥20%) included injection site reactions, skin hyperpigmentation, nausea, headache, diarrhea, abdominal pain, back pain, fatigue, vomiting, depression, upper respiratory tract infection, 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.

Please see full Prescribing Information for additional Important Safety Information.

References:1. IMCIVREE [prescribing information]. Boston, MA. Rhythm Pharmaceuticals, Inc., 2026.2. Argente J, Verge CF, Okorie U, et al. Setmelanotide in patients aged 2-5 years with rare MC4R pathway-associated obesity (VENTURE): a 1 year, open-label, multicenter, phase 3 trial. Lancet Diabetes Endocrinol. 2025;13(1):29-37. doi:10.1016/S2213-8587(24)00273-03. Data on file. Rhythm Pharmaceuticals, Inc. Boston, MA.