Clinical trial • Phase III • Neurology|Endocrinology

SEMAGLUTIDE for Schizophrenia spectrum disorders|Obesity|Prediabetes

Phase III trial of SEMAGLUTIDE for Schizophrenia spectrum disorders|Obesity|Prediabetes.

Overview

Trial Therapeutic Area
Neurology|Endocrinology
Trial Disease
Schizophrenia spectrum disorders|Obesity|Prediabetes
Trial Stage
Phase III
Drug Modality
Peptide/protein/enzyme|Other

Key dates

Initial CTIS Submission Date
17-09-2024
First CTIS Authorization Date
18-10-2024

Trial design

Randomised, semaglutide s.c. 2.4 mg once-weekly versus placebo matching active treatment (placebo arm receives matching placebo).-controlled Phase III trial across 4 sites in Norway.

Randomised
Yes
Comparator
Semaglutide s.c. 2.4 mg once-weekly versus placebo matching active treatment (placebo arm receives matching placebo).
Target Sample Size
140
Trial Duration For Participant
182

Eligibility

Recruits 140 Vulnerable population not selected. Trial enrols adults aged 18–70 only. Informed consent must be obtained before any trial-related activities (see inclusion criterion: "Informed consent obtained before any trial-related activities"). No assent procedures for minors are indicated; subject information and informed consent forms for adults are provided..

Pregnancy Exclusion
Pregnant woman will, based on a positive pregnancy test, be excluded from participation.
Vulnerable Population
Vulnerable population not selected. Trial enrols adults aged 18–70 only. Informed consent must be obtained before any trial-related activities (see inclusion criterion: "Informed consent obtained before any trial-related activities"). No assent procedures for minors are indicated; subject information and informed consent forms for adults are provided.

Inclusion criteria

  • {"criterion_text":"- Informed consent obtained before any trial-related activities. Trial-related activities are any procedures that are carried out as part of the trial, also including activities to determine suitability for the trial as for example the screening for eligibility.\n- Men or woman aged between 18 and 70 years, both years included, at the time of signing informed consent.\n- BMI ≥ 30 kg/m2 or ≥ 27 kg/m2 with the presence of prediabetes determined with either fasting plasma glucose (FPG) between 5.6 and 6.9 mmol/l and/or HbA1c between 39-47 mmol/mol measured on two occasions at least 24 hours apart. These measures will be done at the V1 and the V2 visit, or alternatively a measurement of FPG or HbA1c within the borders of prediabetes performed in the regular clinical treatment during last 2 weeks before screening can be used as the first of the two occasions.\n- A diagnosis within the schizophrenia-spectrum according to International classification of diseases version - 10 (ICD-10): F 20, F 22, F 23, F 25, F 28, F 29.\n- AP drug use for at least 3 weeks prior to starting study medication and a treatment plan/recommendation for further AP drug use for at least the next 6 months. Antipsychotic drug discontinuation during the trial will not result in exclusion from further participation in the study."}

Exclusion criteria

  • {"criterion_text":"- With relation to glycemic regulation: a.\tType 1 or Type 2 diabetes present or in history. b.\tHbA1c >48 mmol/mol. c.\tLatent autoimmune diabetes in adults (LADA). d.\tTreatment with a GLP-1 receptor agonist last 3 months before screening. e.\tTreatment with insulin last 3 months before screening. f. Treatment with metformin last 4 weeks before drug initiation.\n- Clearly disturbed thyroidal function as in an untreated hypo- or hyperthyroidism.\n- Surgical treatment to reduce weight last 6 months before screening, or planned surgical treatment to reduce weight.\n- Safety criteria: a.\ta personal or family history of medullary thyreoid cancer or multippel endokrin neoplasi 2 (MEN 2). b.\tA history of pancreatitis during the last 12 months before inclusion. c.\tA history of myocardial infarction/instable angina/stroke during the last 12 months before inclusion. d.\tA prior serious hypersensitivity reaction to semaglutide or to any of the excipients or otherwise as specified in the SPC of Wegovy. e.\tA history of anorexia nervosa defined: a specialist diagnosed anorexia nervosa of ICD-10 F50.0 or F50.1 last ten years before randomization. f.\tWoman of childbearing potential (WOCBP) who are not using adequate contraceptive methods (ref. appendix 4, section 10.4.2). Contraception must be continued for 2 months after the stop of study medication. See exception clause in section 10.4.2.1. g.\tPregnant woman will, based on a positive pregnancy test, be excluded from participation. h.\tBreastfeeding. i.\tDisorders, unwillingness or inability which in the investigator’s opinion might jeopardize the subject’s safety or compliance with the protocol."}

Endpoints

Primary endpoints

  • {"endpoint_text":"- The primary endpoints addressing the primary objective: change in body weight from baseline to week 26 of the study","definition_or_measurement_approach":"Change in body weight from baseline to week 26 (weight measured at baseline and at week 26); endpoint defined as change in body weight from baseline to week 26."}

Secondary endpoints

  • {"endpoint_text":"- Change from baseline at week 0 to week 26 in: o\tHbA1c (%, mmol /mol) o\tFPG (mmol/l) o\tFasting serum insulin (mIU/L) and insulin C peptid o\tLipids (mg/dL) \tTotal cholesterol \tHigh density lipoprotein (HDL) cholesterol \tLow density lipoprotein (LDL) cholesterol \tVery low density lipoprotein (VLDL) cholesterol \tFree fatty acids \tTriglycerides","definition_or_measurement_approach":"Laboratory measurements of HbA1c, fasting plasma glucose, fasting serum insulin and C-peptide, and lipid panel at baseline and week 26; change from baseline to week 26."}
  • {"endpoint_text":"- Change from baseline at week 0 to week 26 in cognition as assessed by the Brief Assessment of Cognition in Schizophrenia (BACS)","definition_or_measurement_approach":"Cognitive function measured by BACS at baseline and week 26; change from baseline to week 26."}
  • {"endpoint_text":"- Time (in days) until discontinuation of AP drug treatment as evaluated through interviews and the measurement of serum levels of antipsychotic drugs","definition_or_measurement_approach":"Time-to-event measured in days until discontinuation of antipsychotic (AP) treatment, assessed via participant interviews and serum antipsychotic drug levels."}
  • {"endpoint_text":"- Change from baseline at week 0 to week 26 in the Stunkard scale","definition_or_measurement_approach":"Change in Stunkard scale score from baseline to week 26."}
  • {"endpoint_text":"- The economic outcomes will be assessed in the following way: Analysis of incremental cost-effectiveness ratio (ICER) and a cost-utility analysis based on an well-validated instrument to capture changes in quality of life during the intervention period. These outcomes will also use register-data collected during the 12 months after participation in the RCT. Change in quality of life from baseline at week 0 to week 26 will be assessed by the Manchester Short Assesment of quality of life (MANSA).","definition_or_measurement_approach":"Health economic analysis including ICER and cost-utility analysis using quality-of-life instrument (MANSA) at baseline and week 26; register data used for 12 months post-participation."}
  • {"endpoint_text":"- Change from baseline at week 0 to week 26 for waist and hip circumference, waist to hip ratio","definition_or_measurement_approach":"Anthropometric measurements (waist and hip circumferences) at baseline and week 26; compute change and waist-to-hip ratio change."}
  • {"endpoint_text":"- Change from baseline at week 0 to week 26 in heart rate and blood pressure after 5 minutes at rest","definition_or_measurement_approach":"Vital signs (heart rate and blood pressure) measured after 5 minutes at rest at baseline and week 26; change from baseline to week 26."}
  • {"endpoint_text":"- Proportion of participants with T2DM at week 26","definition_or_measurement_approach":"Proportion meeting criteria for type 2 diabetes mellitus at week 26 (based on glycemic measurements)."}
  • {"endpoint_text":"- Change from baseline at week 0 to week 26 in the ratings of the Calgary Depression Scale for Schizophrenia (CDSS)","definition_or_measurement_approach":"Change in CDSS score from baseline to week 26."}

Recruitment

Planned Sample Size
140
Recruitment Window Months
158
Consent Approach
Informed consent must be obtained from each participant before any trial-related activities (see inclusion criterion: "Informed consent obtained before any trial-related activities"). Subject information and informed consent forms for adults are provided (multiple ICF documents listed, including an English version: "L1_SIS and ICF adults version 3_4 date 190126 CLEAN ENG"). No assent for minors is applicable because only adults (18–70 years) are eligible.

Geography

Total Number Of Sites
4
Total Number Of Participants
140

Norway

Earliest CTIS Part Ii Submission Date
02-10-2024
Latest Decision Or Authorization Date
06-05-2026
Processing Time Days
581
Number Of Sites
4
Number Of Participants
140

Sites

Site Name
Oslo University Hospital HF
Department Name
Nydalen DPS
Contact Person Name
Ole Andreassen
Contact Person Email
ole.andreassen@medisin.uio.no
Site Name
Helse Bergen HF
Department Name
Division of psychiatry
Contact Person Name
Rune Andreas Kroken
Contact Person Email
rune.kroken@helse-bergen.no
Site Name
Helse Stavanger HF
Department Name
Psychiatric clinic
Contact Person Name
Melissa Weibell
Site Name
St. Olavs Hospital HF
Department Name
Østmarka
Contact Person Name
Morten Brix Schou
Contact Person Email
morten.brix.schou@stolav.no

Sponsor

Primary sponsor

Full Name
Helse Bergen HF
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
Norway

Third parties

  • {"country":"Denmark","full_name":"Novo Nordisk A/S","duties_or_roles":"Providing study drug","organisation_type":"Pharmaceutical company"}

Investigational products

Investigational Product Name
Wegovy 2.4 mg solution for injection in pre-filled pen
Active Substance
SEMAGLUTIDE
Modality
Peptide/protein/enzyme
Routes Of Administration
Subcutaneous injection
Route
Subcutaneous injection
Authorisation Status
Authorised (marketing authorisation EU/1/21/1608/005)
Starting Dose
2.4 mg once-weekly
Frequency
Once-weekly
Maximum Dose
2.4 mg
Investigational Product Name
Placebo matching active treatment.
Modality
Other

Related trials

Other published trials that may interest you.