TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

SAIZEN

SOMATROPIN
Metabolic Approved 1996-10-08

Saizen (somatropin) is a recombinant human growth hormone indicated for the treatment of growth failure and short stature in pediatric patients and growth hormone deficiency in adults. In children, the therapy is used to treat growth failure caused by inadequate endogenous growth hormone secretion, Noonan syndrome, Turner syndrome, and Prader-Willi syndrome. It is also indicated for pediatric patients born small for gestational age who fail to achieve catch-up growth and those with idiopathic short stature.

Source: FDA Label • EMD SERONO • Recombinant Human Growth Hormone

How SAIZEN Works

Somatropin binds to dimeric growth hormone receptors on the cell membranes of target tissues, initiating intracellular signal transduction. This process induces the production of growth-dependent proteins, such as IGF-1, which stimulates the differentiation and proliferation of chondrocytes in the growth plates of long bones. These interactions facilitate linear growth through increased cellular protein synthesis and various metabolic effects, including lipolysis and hepatic glucose output.

Source: FDA Label
2
Indications
--
Phase 3 Trials
29
Years on Market

Details

Status
Prescription
First Approved
1996-10-08
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: SOMATROPIN

SAIZEN Approval History

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What SAIZEN Treats

6 indications

SAIZEN is approved for 6 conditions since its original approval in 1996. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Growth Hormone Deficiency
  • Short Stature
  • Noonan Syndrome
  • Turner Syndrome
  • Small for Gestational Age
  • Prader-Willi Syndrome
Source: FDA Label
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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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.

SAIZEN FDA Label Details

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Indications & Usage

FDA Label (PDF)

NORDITROPIN is a recombinant human growth hormone indicated for: • Pediatric : Treatment of pediatric patients with growth failure due to inadequate secretion of endogenous growth hormone (GH), short stature associated with Noonan syndrome, short stature associated with Turner syndrome, short stature born small for gestational age (SGA) with no catch-up growth by age 2 to 4 years, Idiopathic Short Stature (ISS), and growth failure due to Prader-Willi Syndrome • Adult : Replacement of endogenous GH in adults with growth hormone deficiency 1.1 Pediatric Patients NORDITROPIN is indicated for the ...

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Data Sources

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