E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Congenital Hyperinsulinism (CHI) |
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E.1.1.1 | Medical condition in easily understood language |
Congenital hyperinsulinism is a disorder associated with severe, persistent hypoglycemia, characterized by excessive and dysregulated insulin secretion by the pancreatic β-cells. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nutritional and Metabolic Diseases [C18] |
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 | 10061211 |
E.1.2 | Term | Hyperinsulinism |
E.1.2 | System Organ Class | 10027433 - Metabolism and nutrition disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 23.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10083499 |
E.1.2 | Term | Congenital hyperinsulinemic hypoglycemia |
E.1.2 | System Organ Class | 100000004850 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Primary Objectives: • to evaluate the safety and tolerability profile of HM15136 • to evaluate the PK profile of HM15136 |
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E.2.2 | Secondary objectives of the trial |
Secondary Objective: • to evaluate the reduction of weekly hypoglycemia events by HM15136 (self-monitored blood glucose [SMBG]) |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Subjects who meet all of the following criteria at screening will be eligible to participate in the clinical study. Note: Subjects not eligible because of laboratory result(s) may have the laboratory test(s) (hematology, clinical chemistry including liver function tests, hemoglobin A1c [HbA1c], and electrocardiogram [ECG]) repeated once during the screening period at the discretion of the investigator to determine eligibility. Inclusion Criteria 1. Cohort 1 (0.04 mg/kg): Male and female subjects aged ≥2 years (applicable to the US) and male and female subjects aged ≥12 years (applicable to Germany, UK, and Israel); Cohort 2 (0.06 mg/kg): Male and female subjects aged ≥2 years in all countries. 2. Stable therapy with SoC medications with or without nutritional supplementation (nutritional supplementation includes enteral feeding such as gastric carbohydrates [administered orally, via nasogastric tube, or gastrostomy]) as described below: a) Subjects aged ≥12 years on stable therapy with diazoxide or somatostatin analog (ie, octreotide and lanreotide) for at least 3 months prior to screening Note: Subjects treated with octreotide infusion could be included after review by the investigator and medical monitor. b) Children aged 2 to 11 years on stable therapy with diazoxide or octreotide for at least 1 month prior to screening; if on lanreotide, stability should be for at least 3 months prior to screening c) Subjects receiving other medications such as sirolimus or nifedipine could be included after review by the investigator and medical monitor 3. Subjects on long-acting somatostatin analog may be enrolled in the study if they have been on stable monthly (every 4 weeks) injections for at least 3 months before screening. Subjects would be required to synchronize their monthly somatostatin analog injection with the first and fifth injection of HM15136 (first dosing date = long-acting somatostatin injection date). Note: Lanreotide users not on every 4 weeks dosing regimen could be enrolled after discussion with the investigator and medical monitor 4. HbA1c <7% 5. Female subjects of childbearing potential must be nonpregnant and nonlactating. All females (regardless of age) of childbearing potential must have a negative urine/serum pregnancy test and must use highly effective methods of contraception throughout the duration of the study and until 60 days after final dose of HM15136 administration. Male subjects must agree to use condoms as a contraceptive measure throughout the duration of the study and until 60 days after final dose of HM15136 administration. 6. Following receipt of oral and written information about the trial, the subject (children) (depending on local Institutional Review Board/Independent Ethics Committee requirements, or local regulatory requirements) must provide an assent and one or both parents (a) or guardians of the subject must provide signed informed consent before any trial-related activity is carried out. Adult subjects must provide signed informed consent. Adult subjects unable to provide informed consent and who require his/her legally authorized representative to provide informed consent will not be enrolled in the study. (a) If required by local regulations, both parents must give their permission unless one parent is deceased, unknown, incompetent, or not reasonably available, or when only one parent has legal responsibility for the care and custody of the child |
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E.4 | Principal exclusion criteria |
1.with type 1 / type 2 diabetes mellitus 2. Other reasons for hypoglycemia, including but not limited to drug-induced hyperinsulinemic hypoglycemia, exogenous insulin-induced hypoglycemia, insulinoma, insulin resistance syndrome, nonislet cells tumor hypoglycemia, postgastric bypass, postfundoplication for gastroesophageal reflux, or dumping syndrome with postprandial hypoglycemia, or hypoglycemia due to other endocrine or inherited metabolic diseases 3. Treatment of CHI with continuous intravenous glucose or glucagon infusion (requiring hospitalization of >1 W) within 1 M prior to screening (sc) (subj. treated with a transient intravenous glucose or glucagon infusion could be included after review by investigator & medical monitor) 4. History of or current active disease of any clinically-significant surgical, medical, or psychiatric condition that, in judgment of investigator, might interfere with absorption, distribution/ metabolism of study drug, interpretation of study assessments/ pose an additional safety risk in administering study drug to subj. 5. unable to tolerate adhesive tape or has any unresolved adverse skin reaction in area of CGMS sensor placement 6. with current use of any drugs known to interfere with study drug, glucose metabolism/ study procedures (eg, use of systemic glucocorticoids [exclude. topical, intra-articular or ophthalmic application, nasal spray, or inhaled forms] for >10 consecutive days within 3 M prior to Sc / insulin) 7. Consumption of alcohol in subj. <18 to 21 y. and heavy drinking in older adults 8. Has participated in an interventional clinical trial (investigational or marketed product) within1 M of Sc or 5 half-lives of drug under investigation (whichever comes first)/ plans to participate in another interventional CT 9. History of any major surgery within 6 M prior to sc (except for pancreatectomy) 10. History of any serious adverse reaction or hypersensitivity to study drug components 11. Anemia findings of hemoglobin <10 g/dL in clinical laboratory results at sc 12. Abnormal clinical laboratory results at sc: a) History of renal disease/ abnormal kidney function tests at sc: estimated glomerular filtration rate <60 mL/min/1.73m2 as estimated using pediatric formula (Schwartz formula) for subj. <18 y. and chronic kidney disease epidemiology collaboration formula for subj. ≥18 y. b) Clinically significant thyroid function abnormality in opinion of investigator. If sc thyroid stimulating hormone is >1.5 x ULN or <0.4 mIU/L, reflex laboratory testing for T3 and free T4 will be performed c) Clinically significant abnormal hepatic function tests suggestive of hepatic impairment: alanine aminotransferase and/or aspartate aminotransferase >3 x ULN or total bilirubin >1.5 x ULN (unless due to Gilbert’s syndrome, total bilirubin >3.0 x ULN and direct bilirubin >1.5 x ULN). 13. History of any clinically significant hepatic findings including gallstones (including incidental finding by ultrasonography or other imaging modalities) 14. Hypertension or hypotension not on stable dose of supportive medication for at least 3 M prior to Scr 15. Any clinically significant abnormality at sc identified on ECG that in opinion of investigator would affect subject’s ability to participate in trial or cardiac arrhythmia requiring medical or surgical treatment within 6 M prior to sc 16. History of any active infection, other than mild viral illness within 30D prior to dosing as judged by investigator 17. History of/ positive test for hepatitis B surface antigen, hepatitis C virus antibody, or HIV type 1 or type 2 antibody at sc 18. Any anticipated procedures (eg surgery) that might interfere with compliance or completion of trial 19. Presence of clinically significant physical examination, ECG, or clinical laboratory finding at sc that in opinion of investigator, may interfere with any aspect of study conduct / interpretation of results 20. Donation/ loss of >500 mL of blood or donation of blood product within 56D of dosing (or corresponding blood loss in pediatric population [eg, more than 10% of total blood volume from trauma, surgery, or having blood drawn for testing prior to sc]) 21. Known or suspected presence of significant central nervous system disease/injury. 22. Have conditions that could affect glucose levels 23. has evidence of COVID-19 within 2W before enrollment 24. Pregnant female subjects based on sc and baseline pregnancy tests 25. With history of major depression, anxiety, or other psychiatric disorders (within last 6 M), requiring active and ongoing medication regimen adjustments including selective serotonin reuptake inhibitors, serotonin norepinephrine reuptake inhibitors, antipsychotics, or lithium. Baseline period exclusion criteria include following: - Use of glucagon within 24 hours before 1st HM15136 administration - Significant changes to CHI medications during sc - Less than 3 hypoglycemia events/ W before baseline period |
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E.5 End points |
E.5.1 | Primary end point(s) |
Primary Endpoints: Safety and tolerability endpoints • incidence of adverse event (AE), treatment-emergent AE (TEAE), and serious AE (SAE) for the following: ° level of severity ° related to/not related to study drug ° leading to discontinuation of study drug ° AE of special interest (AESI in this study are necrolytic migratory erythema, drug-induced liver injury [hepatic laboratory abnormalities], and salivary glands hypertrophy) ° death • incidence of clinical laboratory abnormalities • immunogenicity ° antidrug antibodies (ADAbs) ° neutralizing antibodies ° antipolyethylene glycol antibodies • incidence and severity of clinical findings on physical examination • change from baseline in vital signs (blood pressure, heart rate, respiratory rate, and body temperature) • change from baseline in 12-lead ECG parameters; the primary ECG endpoint will be QT interval corrected for heart rate using Fridericia’s formula (QTcF) Pharmacokinetic endpoints • maximum concentration (Cmax) • time to reach Cmax (tmax) • trough serum concentration (Ctrough) • area under the concentration-time curve (AUC), eg, AUC from time 0 to time t (AUC0-t) at steady state during the period of injection • terminal elimination rate constant (kel) • terminal half-life (t1/2) • apparent clearance at steady state (CLss/F) • apparent volume of distribution at steady state during the terminal phase (Vss/F) |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Please refer to the Schedule of Assessments (Table 1 Schedule of Assessments for Cohort A and Cohort C) within the protocol. |
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E.5.2 | Secondary end point(s) |
Secondary Endpoint • change from baseline in average weekly number and rate of hypoglycemia events at Week 8 (Day 50 to Day 56) by the 7-point SMBG ° hypoglycemia event: glucose <70 mg/dL (<3.9 mmol/L) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Please refer to the Schedule of Assessments (Table 1 Schedule of Assessments for Cohort A and Cohort C) within the protocol. |
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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 | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
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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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
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 | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 4 |
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 |
United States |
Germany |
United Kingdom |
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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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The EOS is defined as the date of the last visit of the last subject in the study or last scheduled procedure for the last subject in the trial globally. |
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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 | 6 |
E.8.9.1 | In the Member State concerned days | 9 |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 6 |
E.8.9.2 | In all countries concerned by the trial days | 9 |