E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Adult Growth Hormone Deficiency (AGHD) |
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E.1.1.1 | Medical condition in easily understood language |
Lack of growth hormone in the body |
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E.1.1.2 | Therapeutic area | Diseases [C] - Hormonal diseases [C19] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10056438 |
E.1.2 | Term | Growth hormone deficiency |
E.1.2 | System Organ Class | 10014698 - Endocrine disorders |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the safety of once-weekly lonapegsomatropin in adults with GHD previously treated in trial TCH-306. |
|
E.2.2 | Secondary objectives of the trial |
1. To evaluate the efficacy of once-weekly lonapegsomatropin in adults with GHD. 2. To evaluate the pharmacodynamics (PD) of once-weekly lonapegsomatropin in adults with GHD. 3. To evaluate the pharmacokinetics (PK) of once-weekly lonapegsomatropin in adults with GHD. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Signing of the trial specific informed consent. 2. Completion of the treatment period and Visit 7 assessments of trial TCH-306, including collection and upload of Visit 7 DXA scan. 3. Fundoscopy at Visit 7 in trial TCH-306 without signs/symptoms of intracranial hypertension or diabetic retinopathy stage 2 / moderate or above. |
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E.4 | Principal exclusion criteria |
1. Diabetes mellitus if any of the following are met: a. Poorly controlled diabetes, defined as HbA1C higher than 7.5% according to central laboratory at Visit 6 in trial TCH-306 b. Use of diabetes mellitus drugs other than metformin and/or dipeptidyl peptidase-4 (DPP- 4) inhibitors 2. Active malignant disease or history of malignancy. Exceptions are: a. Resection of in situ carcinoma of the cervix uteri b. Complete eradication of squamous cell or basal cell carcinoma of the skin 3. Known history of hypersensitivity and/or idiosyncrasy to the investigational product (somatropin or excipients) 4. Female who is pregnant, plans to become pregnant, or is breastfeeding 5. Female participant of childbearing potential (i.e., fertile, following menarche and until becoming post-menopausal unless permanently sterile) not willing throughout the trial to use contraceptives as required by local law or practice. Details included in Appendix 4/section 10.4 of this protocol 6. Male participant not willing throughout the trial to use contraceptives as required by local law or practice. Details included in Appendix 4/ section 10.4 of this protocol 7. Any disease or condition that, in the judgement of the investigator, may make the participant unlikely to comply with the requirements of the protocol or any condition that presents undue risk from the investigational product or trial procedures 8. eGFR <60 mL/min/1.73m² determined based on Modification of Diet in Renal Disease (MDRD) equation using serum creatinine from the central laboratory at screening 9. Hepatic transaminases (ie, AST or ALT) >3 times the upper limit of normal according to the central laboratory at screening
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E.5 End points |
E.5.1 | Primary end point(s) |
• Adverse events (AEs) • Laboratory values • Vital signs • Immunogenicity • 12-lead electrocardiogram (ECGs) • Fundoscopy |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
throughout the treatment period of 52 weeks |
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E.5.2 | Secondary end point(s) |
Efficacy endpoints (as assessed by dual-X-rayabsorptiometry (DXA): • Trunk percent fat • Trunk fat mass • Total body lean mass
PD endpoints: • IGF-1 values and IGF-1 SDS
PK endpoints: • hGH, lonapegsomatropin, and mPEG values |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Efficacy endpoints At week 52 PD endpoints throughout the treatment period of 52 weeks PK endpoints from week 17 to week 52 |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 48 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
New Zealand |
Ukraine |
Armenia |
Australia |
Belarus |
Canada |
Georgia |
Israel |
Japan |
Russian Federation |
Serbia |
United Kingdom |
United States |
Bulgaria |
Denmark |
France |
Germany |
Greece |
Italy |
Netherlands |
Poland |
Romania |
Slovakia |
Spain |
Türkiye |
|
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 4 |
E.8.9.1 | In the Member State concerned days | 17 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 3 |
E.8.9.2 | In all countries concerned by the trial days | 7 |