POMC, PCSK1, and LEPR deficiency are all rare autosomal recessive disorders that lead to hyperphagia and early-onset, severe obesity1-3

POMC
deficiency

Proopiomelanocortin deficiency

PCSK1
deficiency

Proprotein convertase subtilisin/kexin type 1 deficiency

LEPR
deficiency

Leptin receptor deficiency

POMC, PCSK1, and LEPR deficiency impact various systems throughout the body1,4-9

Brain icon

Brain

  • Hyperphagia and consequent obesity
Endocrine icon

Endocrine

  • Adrenal insufficiency

Additional clinical features may include:

  • Endocrine: Hypothyroidism, hypoglycemia
  • Reproductive: Hypogonadotropic hypogonadism
  • Physical: Red hair and light skin pigmentation
  • Hepatic: Liver failure
Brain icon

Brain

  • Hyperphagia and consequent obesity
Digestive icon

Digestive

  • GI symptoms, including postnatal diarrhea within the first weeks of life
  • Failure to thrive in infancy
Kidney icon

Kidneys

  • Metabolic acidosis
  • Polydipsia/polyuria
Endocrine icon

Endocrine

  • Abnormal glucose homeostasis
  • Hypothyroidism
  • Hypocortisolism
Brain icon

Brain

  • Hyperphagia and consequent obesity
Endocrine icon

Endocrine

  • Hyperinsulinemia
Reproductive icon

Reproductive

  • Hypogonadotropic hypogonadism
  • Delayed puberty

Additional clinical features may include:

  • Endocrine: Diabetes
  • Frequent infections

These conditions can be difficult to diagnose based solely on clinical manifestations, but genetic testing may be able to help.2 For more information about genetic testing for POMC, PCSK1, and LEPR deficiency, please visit UncoveringRareObesity.com

 

Uncovering Rare Obesity® can help support a diagnosis of POMC, PCSK1, or LEPR deficiency

A no-charge,* genetic testing program for MC4R pathway diseases

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Genetic test provides insights

The gene panel includes 87 genes and 1 chromosome region, reflective of nearly all of the most frequently tested genes associated with obesity. This is not a test for Prader-Willi syndrome.10

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Tailored support for results interpretation

The program provides you with access to a geneticist to help interpret results, as well as board-certified genetic counselors for your patients. Services are provided through third-party partners.

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Testing conducted by a laboratory partner

DNA testing is conducted by PreventionGenetics, a CLIA-accredited clinical laboratory.

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Blood and OCD-100 buccal swab
sample collection kits are available.

 

For more information about the genetic testing program, visit Uncovering Rare Obesity.com

*Rhythm Pharmaceuticals covers the cost of the test and provides sample collection kits. Patients are responsible for office visit, sample collection, or other costs.

CLIA=Clinical Laboratory Improvement Amendments; GI=gastrointestinal; LEPR=leptin receptor; MC4R=melanocortin-4 receptor; PCSK1=proprotein convertase subtilisin/kexin type 1; POMC=proopiomelanocortin.

References: 1. Styne DM, Arslanian SA, Connor EL, et al. Pediatric obesity-assessment, treatment, and prevention: An endocrine society clinical practice guideline. J Clin Endocrinol Metab. 2017;102(3):709-757. doi:10.1210/jc.2016-2573. 2. Malhotra S, Sivasubramanian R, Srivastava G. Evaluation and management of early onset genetic obesity in childhood. J Pediatr Genet. 2021;10(3):194-204. doi:10.1055/s-0041-1731035. 3. Wabitsch M, Farooqi S, Flück CE, et al. Natural history of obesity due to POMC, PCSK1, and LEPR deficiency and the impact of setmelanotide. J Endocr Soc. 2022;6(6):bvac057. Published April 15, 2022. doi:10.1210/jendso/bvac057. 4. Gregoric N, Groselj U, Bratina N, et al. Two cases with an early presented proopiomelanocortin deficiency-a long-term follow-up and systematic literature review. Front Endocrinol (Lausanne). 2021;12:689387. doi:10.3389/fendo.2021.689387. 5. Huvenne H, Dubern B, Clément K, Poitou C. Rare genetic forms of obesity: Clinical approach and current treatments in 2016. Obes Facts. 2016;9(3):158-173. doi:10.1159/000445061. 6. Stijnen P, Ramos-Molina B, O'Rahilly S, Creemers JW. PCSK1 mutations and human endocrinopathies: From obesity to gastrointestinal disorders. Endocr Rev. 2016;37(4):347-371. doi:10.1210/er.2015-1117. 7. Pépin L, Colin E, Tessarech M, et al. A new case of PCSK1 pathogenic variant with congenital proprotein convertase 1/3 Deficiency and literature review. J Clin Endocrinol Metab. 2019;104(4):985-993. doi:10.1210/jc.2018-01854. 8. Farooqi IS, O'Rahilly S. 20 years of leptin: human disorders of leptin action. J Endocrinol. 2014;223(1):T63-T70. doi:10.1530/JOE-14-0480. 9. Farooqi IS, Wangensteen T, Collins S, et al. Clinical and molecular genetic spectrum of congenital deficiency of the leptin receptor. N Engl J Med. 2007;356(3):237-247. doi:10.1056/NEJMoa063988. 10. UncoveringRareObesity.com. Genetic Testing for Obesity. 2024. Accessed December 8, 2024. https://uncoveringrareobesity.com/.

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.