The goal of this clinical trial is to evaluate the efficacy and safety of Bofanglutide (GZR18) compared with Semaglutide in Latin American adults with overweight or obesity. It will also evaluate the effects of treatment on metabolic parameters, cardiovascular risk factors, and quality of life. The main questions it aims to answer are: Does Bofanglutide (GZR18) reduce body weight after 36 weeks of treatment compared with Semaglutide? What effects does Bofanglutide (GZR18) have on metabolic parameters, cardiovascular risk factors, and quality of life? How safe and well tolerated is treatment with Bofanglutide (GZR18)? Researchers will compare Bofanglutide (GZR18) with Semaglutide, an active comparator, to evaluate efficacy and safety in adults with overweight or obesity. Participants will: Receive Bofanglutide (GZR18) every 2 weeks or Semaglutide once weekly by subcutaneous injection Follow standardized recommendations for diet and physical activity throughout the study Attend scheduled clinic visits for efficacy and safety assessments Participate in treatment and follow-up for up to 40 weeks, including screening, treatment, and safety follow-up periods
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
352
Bofanglutide (GZR18) is a long-acting GLP-1 receptor agonist administered by subcutaneous injection every 2 weeks. Participants will receive progressive dose titration starting at 3 mg up to a target dose of 48 mg according to the study protocol during the 36-week treatment period.
Semaglutide is a GLP-1 receptor agonist administered by weekly subcutaneous injection with progressive dose titration from 0.25 mg to 1 mg according to the study protocol during the 36-week treatment period.
Centro de Investigación Clínica y Medicina Traslacional (CIMeT)
Guadalajara, Jalisco, Mexico
CICMEX Centro de Investigación Clínica de México S de RL de CV.
Morelia, Michoacán, Mexico
SMIQ, S. de R.L. de C.V.
Querétaro City, Querétaro, Mexico
Investigación Médica Sonora S.C.
Hermosillo, Sonora, Mexico
Centro de Estudios de lnvestigación Metabólicos y Cardiovasculares, S.C.
Ciudad Madero, Tamaulipas, Mexico
Instituto Nacional de Cardiología "Ignacio Chávez"
Mexico City, Mexico
Percent Change in Body Weight From Baseline to Week 36
Evaluation of the percent change in body weight from baseline to Week 36 in participants receiving Bofanglutide (GZR18) compared with Semaglutide.
Time frame: Baseline to Week 36
Proportion of Participants Achieving Clinically Relevant Weight Reduction
Evaluation of the proportion of participants achieving clinically relevant body weight reductions of ≥5%, ≥10%, ≥15%, ≥20%, and ≥25% from baseline to Week 36.
Time frame: Baseline to Week 36
Change in Body Mass Index (BMI) From Baseline at Week 36
Evaluation of the change in body mass index (BMI), expressed in kg/m², from baseline to Week 36 during treatment
Time frame: Baseline to Week 36
Change in Hemoglobin A1c (HbA1c) From Baseline at Week 36
Evaluation of the change in glycated hemoglobin (HbA1c), expressed as percentage (%), from baseline to Week 36 during treatment
Time frame: Baseline to Week 36
Change in Fasting Plasma Glucose From Baseline at Week 36
Evaluation of the change in fasting plasma glucose concentration from baseline to Week 36 during treatment
Time frame: From Baseline at Week 36
Change in Systolic Blood Pressure From Baseline at Week 36
Evaluation of the change in systolic blood pressure from baseline to Week 36 during treatment
Time frame: Baseline to Week 36
Change in Diastolic Blood Pressure From Baseline at Week 36
Evaluation of the change in diastolic blood pressure from baseline to Week 36 during treatment
Time frame: Baseline to Week 36
Change in Total Cholesterol From Baseline at Week 36
Evaluation of the change in total cholesterol concentration from baseline to Week 36 during treatment
Time frame: Baseline to Week 36
Change in Triglycerides From Baseline at Week 36
Evaluation of the change in fasting triglyceride concentration from baseline to Week 36 during treatment
Time frame: Baseline to Week 36
Change in Impact of Weight on Quality of Life-Lite (IWQOL-Lite) Total Score From Baseline at Week 36
Evaluation of the change in the Impact of Weight on Quality of Life-Lite (IWQOL-Lite) total score from baseline to Week 36 during treatment. Scores range from 0 to 100, with higher scores indicating better weight-related quality of life.
Time frame: Baseline to Week 36
Incidence of Treatment-Emergent Adverse Events (Safety and Tolerability)
Evaluation of safety and tolerability based on adverse events, serious adverse events, laboratory assessments, and treatment discontinuations during the study.
Time frame: From first dose through safety follow-up (up to 40 weeks)
Change in Patient Health Questionnaire-9 (PHQ-9) Total Score From Baseline at Week 40
Evaluation of the change in the Patient Health Questionnaire-9 (PHQ-9) total score from baseline to Week 40. The PHQ-9 is a self-administered questionnaire used to assess depressive symptoms. Total scores range from 0 to 27, with higher scores indicating more severe depressive symptoms.
Time frame: From first dose through safety follow-up (up to 40 weeks)
Number of Participants With Suicidal Ideation or Behavior Assessed by the Columbia-Suicide Severity Rating Scale (C-SSRS)
Evaluation of the occurrence of suicidal ideation or suicidal behavior during treatment with Bofanglutide (GZR18) compared with Semaglutide, assessed using the Columbia-Suicide Severity Rating Scale (C-SSRS).
Time frame: From first dose through safety follow-up (up to 40 weeks)
Incidence of Anti-Drug Antibodies Against Bofanglutide
Evaluation of the incidence of anti-drug antibodies (ADAs) against Bofanglutide during the study, including assessment of neutralizing antibodies (NAbs) and cross-reactivity with endogenous glucagon-like peptide-1 (GLP-1), as applicable.
Time frame: From first dose through safety follow-up (up to 40 weeks)
Early Assessment at Week 16
Evaluation of the percent change in body weight from baseline and the proportion of participants achieving body weight reductions of ≥5% and ≥10% at Week 16.
Time frame: Baseline to Week 16
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