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Once weekly of TransCon hGH

Phase 3

Growth Hormone Deficiency, Pediatric | Small molecule | Endocrine |Ascendis Pharma A/S|Last Updated: Jul 7, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment162

FDA Designations

No designations recorded

Clinical trial landscape

Once weekly of TransCon hGH · 1 trial · 5 indications

Phase 3 1
NCT02781727A Phase 3 Trial of the Safety, Tolerability and Efficacy of TransCon hGH Weekly Versus Daily hGH in Children With Growth Hormone Deficiency (GHD)Growth Hormone Deficiency, Pediatric
COMPLETED162 Analytics
PHASE3COMPLETED
A Phase 3 Trial of the Safety, Tolerability and Efficacy of TransCon hGH Weekly Versus Daily hGH in Children With Growth Hormone Deficiency (GHD)
Growth Hormone Deficiency, PediatricUnlock trial analytics

Study Endpoints

Primary Endpoints

Annualized Height Velocity at 52 Weeks for Weekly Lonapegsomatropin and Daily hGH Treatment Groups
52 weeks

Annualized height velocity (AHV) at 52 weeks for weekly lonapegsomatropin (TransCon hGH) and daily hGH treatment groups

Secondary Endpoints

Number of Participants With Treatment-Emergent Adverse Events [Safety and Tolerability]
52 Weeks
Annualized Height Velocity Over 52 Weeks for Weekly Lonapegsomatropin and Daily hGH Treatment Groups
Week 5, Week 13, Week 26, Week 39 and Week 52
Change in Height Standard Deviation Score Over 52 Weeks for the Weekly Lonapegsomatropin and Daily hGH Treatment Groups
Week 5, Week 13, Week 26, Week 39 and Week 52
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
TransCon hGHEXPERIMENTALOnce weekly subcutaneous injection of TransCon hGH
human growth hormone (Genotropin)ACTIVE_COMPARATOROnce daily subcutaneous injection of Genotropin

Interventions

NameTypeDescription
Once weekly subcutaneous injection of TransCon hGHDRUGOnce weekly subcutaneous injection
Once daily subcutaneous injection of GenotropinDRUGOnce daily subcutaneous injection
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Eligibility Criteria

Age Range3 Years to 12 Years
SexALL
Healthy VolunteersNo
Study Sites53

Inclusion Criteria: * Prepubertal children with GHD (either isolated or as part of a multiple pituitary hormone deficiency) in Tanner stage 1 (Tanner 1982) aged: * Boys: 3-12 years, inclusive * Girls: 3-11 years, inclusive * Impaired height (HT) defined as at least 2.0 standard deviations (SD)...

Countries:United StatesArmeniaAustraliaBelarusBulgariaGeorgiaGreeceItalyNew ZealandPolandRomaniaRussiaTurkey (Türkiye)Ukraine
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Recent Changes (Last 90 Days)

MEDIUMAug 7, 2026NCT02781727TRIAL_REMOVED: changed
MEDIUMAug 7, 2026NCT02781727TRIAL_REMOVED: changed
MEDIUMAug 7, 2026NCT02781727TRIAL_REMOVED: changed

Frequently asked questions about Once weekly of TransCon hGH

What is TransCon hGH used for in pediatric growth hormone deficiency?

TransCon hGH is an investigational once-weekly human growth hormone being developed for pediatric growth hormone deficiency (GHD). It is designed to provide a weekly alternative to daily growth hormone injections in children with GHD. The drug is currently in Phase 3 clinical development and is not yet approved.

Who makes TransCon hGH?

TransCon hGH is being developed by Ascendis Pharma A/S, a biopharmaceutical company listed on the NASDAQ under the ticker ASND. The company is conducting clinical trials to evaluate the safety and efficacy of this once-weekly growth hormone therapy for children with growth hormone deficiency.

What phase is TransCon hGH in?

TransCon hGH is in Phase 3 clinical development. A Phase 3 trial has been completed, evaluating the safety, tolerability, and efficacy of once-weekly TransCon hGH compared to daily human growth hormone in children with growth hormone deficiency. The drug remains investigational and has not received regulatory approval.

What clinical trials is TransCon hGH in?

TransCon hGH has one completed Phase 3 clinical trial, registered as NCT02781727. This trial enrolled 162 children with growth hormone deficiency and compared once-weekly TransCon hGH against daily human growth hormone. The study was active-controlled, randomized, and open-label, with participants aged 3 years and older.

How does TransCon hGH work?

TransCon hGH is a long-acting form of human growth hormone designed to be administered once weekly. It works by providing sustained release of growth hormone to treat growth hormone deficiency in children. The drug is engineered to maintain therapeutic levels of growth hormone over a longer period compared to daily injections.