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Safety, Pharmacokinetic (PK) Profile and Efficacy of Inpegsomatropin Injection in Adults With Growth Hormone Deficiency

A Multiple-Dose, Dose-Escalation, Randomized, Double-Blind, Placebo-Controlled Phase Ⅱa Clinical Trial to Evaluate the Safety, Pharmacokinetic (PK) Profile and Preliminary Efficacy of Inpegsomatropin Injection in Adults With Growth Hormone Deficiency

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07551804
Enrollment
36
Registered
2026-04-27
Start date
2026-06-10
Completion date
2028-06-30
Last updated
2026-07-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adult Growth Hormone Deficiency

Keywords

Inpegsomatropin Injection, Pharmacokinetic, Safety, Adults With Growth Hormone Deficiency

Brief summary

This is a multiple-dose, dose-escalation, randomized, double-blind, placebo-controlled phase Ⅱa clinical trial. A total of 36 adult participants with growth hormone deficiency will be enrolled sequentially in ascending dose cohorts, and within each dose cohort, participants will be randomized in a 3:1 ratio.

Interventions

Inpegsomatropin Injection,initial dose1mg/0.25ml, s.c. ,once a week

DRUGPlacebo for Inpegsomatropin Injection

Placebo for Inpegsomatropin Injection,initial dose0.25ml, s.c. ,once a week

Sponsors

Xiamen Amoytop Biotech Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
MALE
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Male study participants aged ≥ 18 years and \< 80 years at the time of signing the informed consent form (ICF); * Study participants meeting the criteria for adult growth hormone deficiency (AGHD): Patients with a peak GH level \< 5 μg/L measured by insulin tolerance test (ITT); OR Patients with an IGF-1 level below -2.0 SDS for age and sex at screening (see Appendix 4); * No systemic treatment with growth hormone or growth hormone secretagogues within 6 months prior to entering the screening period; * For patients with any other pituitary hormone deficiency who are on hormone replacement therapy (HRT) at screening, HRT must have been stable for at least 3 months; * Study participants must agree to use reliable contraceptive measures with their spouses from - Study participants fully understand the purpose, nature, methods and potential adverse reactions of the trial, voluntarily participate in the study, and have signed the informed consent form.

Exclusion criteria

* Individuals with known or suspected hypersensitivity to the investigational product or its excipients; * Patients with severe malnutrition as judged by the investigator, or with a BMI \< 18.5 kg/m² at screening; * Patients with active malignancy or a history of malignancy; or with thyroid nodules classified as TI-RADS grade ≥ 4a on thyroid ultrasound; or with high-risk or suspected malignant nodules detected on chest CT; or with clinically significant abnormal tumor markers at screening; * For patients with a history of pituitary adenoma or other benign intracranial tumors: 1. Surgical resection of pituitary adenoma or other benign intracranial tumors within 12 months prior to screening; 2. Evidence of growth of pituitary adenoma or other benign intracranial tumors within 12 months prior to screening (must be confirmed by two postoperative MRI scans, with the most recent MRI scan performed ≤ 6 months before the screening period); * Patients with abnormal liver or renal function at screening (ALT \> 3×ULN, Cr \> 1.5×ULN); * Patients testing positive for hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (anti-HCV), or human immunodeficiency virus antibody (anti-HIV) at screening; * Patients with a clinically significant change in body weight within 6 months prior to screening as judged by the investigator, or with a self-reported body weight change of ≥ 10% compared to 6 months before screening; * Patients with unstable control of diabetes mellitus within 3 months prior to screening (HbA1c ≥ 7.5% at screening), or with significant adjustment of hypoglycemic medication dose or change in therapeutic drug type, or with severe diabetic complications as judged by the investigator; * Patients with cardiac insufficiency classified as NYHA class ≥ III; * Patients with a history of acromegaly or gigantism; * Patients with mental disability or language impairment that prevents full participation in the trial; * Individuals who have participated in any clinical trial of investigational medicinal products (as a trial participant) and received investigational intervention within 3 months prior to screening; * Other conditions deemed unsuitable for enrollment by the investigator.

Design outcomes

Primary

MeasureTime frame
Adverse EventDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
Serious Adverse EventDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
Number of Participants with Abnormal Laboratory Parameters FindingsDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
HR (bpm)Day -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
PR (ms)Day -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
QRS (ms)Day -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
QT (ms)Day -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
QTc (ms)Day -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
Number of participants with clinically significant changes in imaging examinationsDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
body weightDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
body Mass IndexDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
body temperatureDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
pulseDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
blood pressureDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
RespirationDay -1,Weeks 1, 3, 5, 9, 17, 25, 29, 37
Trunk fat percentageWeek 25
Trunk fat massWeek 25
Total fat massWeek 25
Visceral adipose tissue (VAT)Week 25
Lean body mass (LBM)Week 25
Bone mineral density (BMD)Week 25
Quality of life score (QoL score)Week 25
BMIWeek1Day1,Week25Day1
Change from baseline in waist-to-hip ratioWeek3Day1,Week25Day1
IGF-I /IGFBP-3Week1Day1,Week25Day1
CmaxWeek1Day1,Week25Day1
CminWeek1Day1,Week25Day1
TmaxWeek1Day1,Week25Day1
AUC0-tWeek1Day1,Week25Day1
AUC0-∞Week1Day1,Week25Day1
AUC0-tauWeek1Day1,Week25Day1
Rac_CmaxWeek1Day1,Week25Day1
Rac_AUC0-tauWeek1Day1,Week25Day1
CL/FWeek1Day1,Week25Day1
Vz/FWeek1Day1,Week25Day1
DFWeek1Day1,Week25Day1
t1/2Week1Day1,Week25Day1
ADAWeek1Day1,Week29Day1
NAbWeek1Day1,Week29Day1

Countries

China

Contacts

CONTACTYiming Li, Ph.D
yimingli@fudan.edu.cn13501936597
PRINCIPAL_INVESTIGATORYiming Li

Huashan Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 23, 2026