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.
Quick facts
| Phase | Phase1; Phase2 |
|---|---|
| Study type | Interventional |
| Ages | 3 Years and up |
| Sex | All |
| Enrollment | 88 (estimated) |
| Sponsor | Changchun GeneScience Pharmaceutical Co., Ltd. Industry-sponsored |
| Locations | 1 site (Wuhan, Hubei) |
| Status | Recruiting |
| Started | January 18, 2026 |
| Main results expected | November 2030 |
| Study ends | November 2030 |
| Registry record updated | September 16, 2026 |
| Trial ID | NCT07264595 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
- Study coordinator: Lingli Sun, bachelor
- Email: sunlingli@genscigroup.com
- Phone: +86 18006171657
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.