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NCT Number: NCT07260500

A Phase II Study of PEG-rhGH Injection for Short Children Born Small for Gestational Age: Efficacy, Safety, and Pharmacokinetics

This study will take place at multiple sites and is divided into three phases:an initial 4-week getting-to-know-you phase,a 26-week main phase where participants receive medication,and a 4-week follow-up phase.Participants will be divided into three groups:two will receive different doses of PEG-rhGH Injection,and the third will receive hGH Injection.The goal is to determine which medication works best.

Recruiting

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Key information

Age range

3 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology

Wuhan, Hubei, 430030, China

Location status: Recruiting

Location contact

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Born full-term and "small-for-dates" - Born at 37-41 weeks (full-term). - Birth weight below the 10th percentile for that week of pregnancy and sex .
  • At least 3 years old on the day the parent signs the consent form.
  • Still prepubertal (Tanner stage I - no signs of puberty yet).
  • Height at the first study visit is more than 2 standard deviations below the average for his or her age and sex.
  • Bone age on X-ray is no more than 1 year ahead of real age.
  • Never taken growth hormone, IGF-1, or any ghrelin-like medicine before.
  • Both the subject and their guardian are able to voluntarily sign the Informed Consent Form (ICF) and voluntarily cooperate in completing the trial according to the protocol. If the subject is legally incompetent, written informed consent from their guardian shall be obtained. Additionally, relevant information about the clinical trial shall be communicated to the subject within their understanding, and the subject should be encouraged to sign the ICF personally as much as possible.

Exclusion criteria

  • Severe allergy to growth hormone or its ingredients.
  • Growth-hormone deficiency.
  • Any chromosome/genetic/syndrome cause of short stature.
  • Other diseases that can impair growth.
  • Cognitive, developmental, or psychiatric disorders that could affect assessments .
  • Current or past cancer, or high familial cancer risk.
  • Positive hepatitis B, hepatitis C, HIV, or active tuberculosis at screening.
  • Abnormal liver or kidney blood tests.
  • Pre-diabetes or diabetes at screening .
  • Systemic steroids > 28 consecutive days or > 14 days total in the last 3 months.
  • High-dose inhaled steroids > 28 days in the last year.
  • Prior use of aromatase inhibitors, GnRH analogues, sex hormones, anabolic agents, or other drugs that affect growth. 13. Unable to receive subcutaneous injections.
  • Claustrophobia or inability to undergo brain MRI.
  • Participated in another clinical trial with investigational treatment within 3 months.
  • Any other condition that, in the investigator's opinion, makes the child unsuitable for the study.

Treatment and study plan

PEG-rhGH Injection

Drug

Jintrolong® Dose 1, subcutaneous injection, once weekly for 26 weeks for 24 subjects..

Jintrolong® Dose 2, subcutaneous injection, once weekly for 26 weeks for 24 subjects..

Other names: Jintrolong®

hGH Injection

Drug

Jintropin® dose 3, subcutaneous injection, once daily for 26 weeks (active comparator) for 24 subjects.

Other names: Jintropin®

Primary outcomes

  1. Annual height velocity at Week 26 of treatment

    Time frame: 26 Weeks

Study contacts

Contact information is provided by the study sponsor or research team.

Ling Hou

CONTACT

[email protected]

+8613437131846

Xiao Ping Luo

CONTACT

[email protected]

+8613387522645

Sponsors and collaborators

Lead sponsor

Changchun GeneScience Pharmaceutical Co., Ltd.

Industry

Registry information

Official study title

A Phase II, Multicenter, Randomized, Open-label, Active-controlled Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of Polyethylene Glycol Recombinant Human Growth Hormone Injection in Short Children Born Small for Gestational Age (SGA)

Important dates

Study start
2025
Primary completion
2026
Study completion
2027
First posted
Dec 3, 2025
Registry last updated
Feb 17, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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