Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 3 and up

Oral GS3-007a for children with growth hormone deficiency

Official title: A Study to Evaluate the Safety and Tolerability of Multiple Ascending Doses of GS3-007a Dry Suspension in Patients With PGHD and to Evaluate the Efficacy and Safety of 52-week of Treatment With GS3-007a Dry Suspension: a Two-part, Multicenter, Randomized, Phase Ib/II Clinical Trial

Run by Changchun GeneScience Pharmaceutical Co., Ltd. · NCT07264595 · Data updated 2026-11-12

This study tests whether GS3-007a given as an oral suspension can help children with growth hormone deficiency, compared with placebo in Part 1 and with an approved treatment in Part 2.

More Growth Hormone Deficiency trials

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages3 Years and up
SexAll
Enrollment88 (estimated)
SponsorChangchun GeneScience Pharmaceutical Co., Ltd.
Industry-sponsored
Locations1 site (Wuhan, Hubei)
StatusRecruiting
StartedJanuary 18, 2026
Main results expectedNovember 2030
Study endsNovember 2030
Registry record updatedSeptember 16, 2026
Trial IDNCT07264595 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Prepubertal children aged 3 or older with confirmed growth hormone deficiency, who have not previously received growth-promoting drugs and meet height criteria.

Probably not a fit

Children with certain medical conditions or those not responding to GS3-007a may not experience a growth benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The trial has two parts. Part 1 is a double-blind, randomized comparison of different doses of GS3-007a dry suspension versus placebo in children with growth hormone deficiency over 14 days to identify a safe, tolerable dose. Part 2 is open-label and compares the selected GS3-007a dose to an approved treatment over 52 weeks, followed by an extension phase of up to 156 weeks to examine long-term effects. The study includes a long-term follow-up to observe sustained safety and potential growth benefits. Eligible participants are prepubertal children aged 3 years or older with confirmed GHD who have not received growth-promoting therapy and meet specific height criteria.

Why it matters

Potential benefit: If successful, GS3-007a could provide an alternative oral option for managing growth hormone deficiency in children.

How similar studies have gone: Some earlier approaches explored oral agents for growth disorders, but this specific GS3-007a program represents a novel approach with no guaranteed success yet.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* chronological age (CA) ≥3 years at Screening
* Prepubertal girls or boys
* Height at Screening lower than the reference height for normal children of the same chronological age and sex minus 2 standard deviations (-2 SD)
* A confirmed diagnosis of growth hormone deficiency (GHD)
* Having not been treated with any growth-promoting drugs
* BA delayed by ≥6 months compared with the CA at Screening Subjects who meet all of the following criteria are eligible to enroll in the extension study (applicable for Part II extension period)
* Subjects who have completed the 52-week treatment period of phase II
* Subjects who do not permanently discontinue the investigational Medicinal Product (IMP) during the 52-week treatment period of phase II

Exclusion Criteria:

* A highly allergic constitution
* Suspected or confirmed total pituitary deficiency, including patients previously confirmed with deficiency of ≥2 pituitary hormones other than GH
* Being confirmed with other chromosomal abnormalities or growth abnormalities affecting growth
* Congenital skeletal dysplasia or serious spinal anomalies
* Cognitive hypofunction, neurodevelopmental disorders, or psychiatric/psychological disorders that, in the investigator's opinion, may interfere with evaluation of study endpoints
* Any clinically significant abnormality that may affect growth or evaluation of the IMP
* Screening magnetic resonance imaging (MRI) scan of the sellar region confirming prior or current intracranial tumor growth
* Concurrent use of any medications that may affect growth or response to growth hormone therapy
* Epiphyseal closure
* Electrocardiogram (ECG) QTcF interval abnormal, with a history of QT/QTc interval prolonged
* Hepatic function indicators abnormal at Screening Patients meeting any of the following criteria may not be enrolled in this extension study (applicable for Part II extension period)
* Subjects with closed epiphyses
* Any clinically significant abnormality that may affect growth or evaluation of the IMP
* Known or suspected allergy to the IMP
* Women with positive blood human chorionic gonadotropin (hCG) at the pre-treatment visit

Where it's running

  • Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology
    Wuhan, Hubei, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.