BALANCE-OBS: Bofanglutide (GZR18) Versus Semaglutide in Latin American Adults With Overweight or Obesity
BALANCE-OBS: A Multiregional, Randomized, Multicenter, Active-Controlled Confirmatory Phase III Study to Evaluate the Efficacy and Safety of Bofanglutide (GZR18) Versus Semaglutide in Latin American Adults With Overweight or Obesity
1 other identifier
interventional
352
1 country
6
Brief Summary
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
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Sep 2026
Shorter than P25 for phase_3
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 24, 2026
CompletedFirst Posted
Study publicly available on registry
June 3, 2026
CompletedStudy Start
First participant enrolled
September 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2027
Study Completion
Last participant's last visit for all outcomes
December 1, 2027
June 3, 2026
June 1, 2026
1.2 years
May 24, 2026
June 1, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
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.
Baseline to Week 36
Secondary Outcomes (14)
Proportion of Participants Achieving Clinically Relevant Weight Reduction
Baseline to Week 36
Change in Body Mass Index (BMI) From Baseline at Week 36
Baseline to Week 36
Change in Hemoglobin A1c (HbA1c) From Baseline at Week 36
Baseline to Week 36
Change in Fasting Plasma Glucose From Baseline at Week 36
From Baseline at Week 36
Change in Systolic Blood Pressure From Baseline at Week 36
Baseline to Week 36
- +9 more secondary outcomes
Study Arms (2)
Group A: Bofanglutida (GZR18),
EXPERIMENTALGroup B: Semaglutide
ACTIVE COMPARATORInterventions
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.
Eligibility Criteria
You may qualify if:
- Male or female participants aged ≥18 years.
- Body mass index (BMI): ≥30.0 kg/m² (obesity), or ≥27.0 kg/m² and \<30.0 kg/m² (overweight) with at least one weight-related comorbidity, including impaired glucose metabolism, hypertension, dyslipidemia, metabolic dysfunction-associated steatotic liver disease (MASLD), osteoarthritis attributable to excess weight, or obstructive sleep apnea.
- Body weight managed through diet and exercise alone for at least 12 weeks prior to screening, with \<5% change in body weight during the previous 12 weeks.
- Willingness and ability to maintain a stable diet and physical activity regimen throughout the study.
- Female participants of reproductive potential must not be pregnant or breastfeeding, must have a negative pregnancy test at screening and prior to randomization, and must agree to use a highly effective method of contraception during the study and for at least 8 weeks after the last dose of study drug.
- Male participants must agree to use effective contraception and refrain from sperm donation during the study and for at least 8 weeks after the last dose of study drug.
- Ability to understand the study requirements and provide written informed consent prior to any study-specific procedures.
You may not qualify if:
- Known or suspected hypersensitivity to GLP-1 receptor agonists, GLP-1/GIP receptor agonists, or any component of the investigational product.
- History of substance abuse or alcoholism within 6 months prior to screening.
- Presence of conditions that may interfere with accurate anthropometric assessments.
- History of bariatric surgery or planned bariatric surgery during the study.
- Obesity secondary to an underlying disease or medication.
- Previous diagnosis of diabetes mellitus (except gestational diabetes).
- History of severe hypoglycemia within 6 months prior to screening.
- Personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2 (MEN2).
- History of malignancy within 5 years prior to screening, except adequately treated non-melanoma skin cancer or carcinoma in situ.
- Clinically significant thyroid disease, pancreatitis, gallbladder disease, gastrointestinal disease, cardiovascular disease, cerebrovascular disease, hepatic disease, renal disease, or hematologic disease that, in the Investigator's judgment, may interfere with study participation.
- Uncontrolled hypertension or clinically significant electrocardiogram abnormalities.
- Moderate or severe psychiatric disorders, clinically significant eating disorders, suicidal ideation or behavior, or a PHQ-9 score ≥15 at screening.
- Clinically significant laboratory abnormalities at screening, including abnormalities in liver function, renal function, pancreatic enzymes, calcitonin, hematology, glycemic parameters, or positive testing for HIV, active hepatitis B, hepatitis C, or syphilis.
- Prior use of GLP-1 receptor agonists, dual/triple incretin agonists, weight-loss medications, hypoglycemic agents, or other medications that may affect body weight within 3 months prior to screening.
- Acute infection requiring systemic treatment at screening or prior to randomization.
- +3 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (6)
Centro de Investigación Clínica y Medicina Traslacional (CIMeT)
Guadalajara, Jalisco, 44340, Mexico
CICMEX Centro de Investigación Clínica de México S de RL de CV.
Morelia, Michoacán, 58000, Mexico
SMIQ, S. de R.L. de C.V.
Querétaro City, Querétaro, 76070, Mexico
Investigación Médica Sonora S.C.
Hermosillo, Sonora, 83280, Mexico
Centro de Estudios de lnvestigación Metabólicos y Cardiovasculares, S.C.
Ciudad Madero, Tamaulipas, 89440, Mexico
Instituto Nacional de Cardiología "Ignacio Chávez"
Mexico City, 14080, Mexico
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Emma Adriana Chávez Manzanera, Dr.
Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán. Clínica de Obesidad y Trastornos de la Conducta Alimentaria
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 24, 2026
First Posted
June 3, 2026
Study Start (Estimated)
September 1, 2026
Primary Completion (Estimated)
December 1, 2027
Study Completion (Estimated)
December 1, 2027
Last Updated
June 3, 2026
Record last verified: 2026-06
Data Sharing
- IPD Sharing
- Will not share
De-identified individual participant data collected during this study will not be made available to other researchers.