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Data updated: Jun 28, 2026

INCRELEX (mecasermin recombinant) · IPSEN

Endocrine Approved 2005-08-30

INCRELEX (mecasermin) is indicated for the treatment of growth failure in pediatric patients aged 2 years and older with severe primary insulin-like growth factor-1 (IGF-1) deficiency. It is also approved for patients with growth hormone (GH) gene deletion who have developed neutralizing antibodies to GH. This therapy is specifically intended for patients with significant height and IGF-1 deficits who do not have secondary forms of deficiency, such as malnutrition or hypothyroidism.

How INCRELEX Works

Mecasermin functions as a recombinant form of IGF-1, a key hormone that mediates statural growth. It binds to and activates the Type 1 IGF-1 receptor, which is homologous to the insulin receptor, to initiate intracellular signaling and stimulate growth. Beyond direct growth stimulation, the drug promotes metabolic actions including the uptake of glucose, fatty acids, and amino acids to support the development of growing tissues.

2
Indications
--
Phase 3 Trials
1
Priority Reviews
20
Years on Market

Details

Status
Prescription
First Approved
2005-08-30
Patent Cliff
2012

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Routes
SUBCUTANEOUS
Dosage Forms
INJECTABLE

Companies

Active Ingredient: MECASERMIN RECOMBINANT

INCRELEX Approval History

2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
12 FDA actions from 2005 to 2025 · 1 indication expansions
Jul 2025 SUPPL
Label · Labeling
Mar 2024 SUPPL
Efficacy
Oct 2023 SUPPL
Label · Labeling

What INCRELEX Treats

2 indications

INCRELEX is approved for 2 conditions since its original approval in 2005. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Growth Failure
  • IGF-1 Deficiency
Source: FDA Label

INCRELEX Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

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IPSEN's other novel FDA approvals

Other CDER-designated drugs from the same sponsor (2016–2025).

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Clinical Trial Registry

1 trials
Trial Sponsor ID Phase Status Title
NCT02636270 results posted 2015-6218 Ph 1, Ph 2 completed IGF-1 Treatment for Individuals With Short Stature Due to PAPP-A2 Deficiency
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Key Completed Trials

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

INCRELEX FDA Label Details

Indications & Usage

FDA Label (PDF)

INCRELEX (mecasermin) injection is indicated for the treatment of growth failure in pediatric patients 2 years of age and older with severe primary IGF-1 deficiency or with growth hormone (GH) gene deletion who have developed neutralizing antibodies to GH. Limitations of use: INCRELEX is not a substitute to GH for approved GH indications. Severe Primary IGF-1 Deficiency (Primary IGFD) INCRELEX is indicated for the treatment of growth failure in pediatric patients 2 years of age and older with: severe primary IGF-1 deficiency or growth hormone (GH) gene deletion who have developed neutralizing ...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.