A Study of Weekly Oral Ecnoglutide (VRB-101) in Participants Who Have Obesity or Overweight With Weight-Related Comorbidities
EVOLVE-2
A Randomized, Double-Blind, Placebo-Controlled Phase 2b Study of Weekly Oral Ecnoglutide (VRB-101) in Participants Who Have Obesity or Overweight With Weight-Related Comorbidities
1 other identifier
interventional
206
1 country
22
Brief Summary
The aim of this study is to evaluate the efficacy of VRB-101 for body weight reduction compared to placebo in participants who have obesity or overweight with weight-related comorbidities.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2 obesity
Started Nov 2025
Shorter than P25 for phase_2 obesity
22 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 25, 2025
CompletedFirst Submitted
Initial submission to the registry
December 4, 2025
CompletedFirst Posted
Study publicly available on registry
December 15, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2026
May 8, 2026
May 1, 2026
7 months
December 4, 2025
May 7, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Mean percent change from baseline in body weight
To evaluate the efficacy of VRB-101 for body weight reduction compared to placebo in Schedule A dose regimens.
From Baseline (Day 0) up to Week 21
Secondary Outcomes (6)
Absolute change from baseline in body weight
From Baseline (Day 0) up to Week 21
Percentage of participants who achieve 5% or more body weight reduction
From Baseline (Day 0) up to Week 21
Change from baseline in body mass index (BMI)
From Baseline (Day 0) up to Week 21
Number of study participants with treatment emergent adverse events (TEAEs) and serious adverse events (SAEs)
From Baseline (Day 0) up to Week 24
Change from baseline in blood pressure (BP)
From Baseline (Day 0) up to Week 24
- +1 more secondary outcomes
Study Arms (6)
Schedule A: VRB-101 (Active Arm 1)
EXPERIMENTALParticipants will receive VRB-101 once every week.
Schedule A: VRB-101 (Active Arm 2)
EXPERIMENTALParticipants will receive VRB-101 once every week.
Schedule A: VRB-101 (Active Arm 3)
EXPERIMENTALParticipants will receive VRB-101 once every week.
Schedule B: VRB-101 (Active Arm 4)
EXPERIMENTALParticipants will receive VRB-101 once every week.
Schedule B: VRB-101 (Active Arm 5)
EXPERIMENTALParticipants will receive VRB-101 once every week.
Pooled Placebo
PLACEBO COMPARATORParticipants will receive matching placebo to VRB-101 once every week.
Interventions
VRB-101 tablets will be administered orally.
Eligibility Criteria
You may qualify if:
- Have hemoglobin A1c (HbA1c) \<6.5%.
- Have a BMI of ≥30 kg/m2 OR ≥27 kg/m2 and \<30 kg/m2 with at least 1 weight-related comorbidity.
- Have a self-reported history of stable body weight for the 3 months prior to randomization (≤5% body weight change).
- Participants of childbearing potential must be non-pregnant and non-lactating and must agree to use study-specified contraceptive methods.
You may not qualify if:
- Have any prior diagnosis of type 1 diabetes mellitus (T1DM) or type 2 diabetes mellitus (T2DM), or other forms of diabetes mellitus. A participant with a history of gestational diabetes may be included in the study if the participant has an HbA1c \< 6.5% at Screening.
- Have at least 1 laboratory value suggestive of diabetes during Screening, including 1 or more of HbA1c ≥6.5% (48 mmol/mol) or random glucose ≥200 mg/dL (11.1 mmol/L).
- Have had exposure to glucagon-like peptide -1 (GLP-1) 6 months prior to Screening or any prior history of known or suspected hypersensitivity/allergies, intolerability, or lack of efficacy to these medications. Have known or suspected hypersensitivity to study intervention(s), to selective GLP-1 receptor agonist (RA) or glucose-dependent insulinotropic peptide (GIP)/GLP-1 or GLP-1/glucagon (GCG) dual receptor agonists.
- Pregnant or breastfeeding at Screening or planning to become pregnant (self or partner) at any time within the dosing period, including follow -up, and for at least 60 days after the last dose of study intervention.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (22)
Clinical Study Site 103
Anniston, Alabama, 36207, United States
Clinical Study Site 109
Cullman, Alabama, 35055, United States
Clinical Study Site 110
Phoenix, Arizona, 85028, United States
Clinical Study Site 113
Little Rock, Arkansas, 72205, United States
Clinical Study Site 111
Anaheim, California, 92801, United States
Clinical Study Site 107
Montclair, California, 91763, United States
Clinical Study Site 118
Tarzana, California, 91356, United States
Clinical Study Site 119
Decatur, Georgia, 30030, United States
Clinical Study Site 116
West Des Moines, Iowa, 50266, United States
Clinical Study Site 106
Wichita, Kansas, 67207, United States
Clinical Study Site 122
Southfield, Michigan, 48076, United States
Clinical Study Site 121
Omaha, Nebraska, 68134, United States
Clinical Study Site 117
Binghamton, New York, 13905, United States
Clinical Study Site 101
Rochester, New York, 14609, United States
Clinical Study Site 120
Charlotte, North Carolina, 28210, United States
Clinical Study Site 108
Monroe, North Carolina, 28112, United States
Clinical Study Site 105
Norman, Oklahoma, 73069, United States
Clinical Study Site 114
Duncansville, Pennsylvania, 16635, United States
Clinical Study Site 115
Knoxville, Tennessee, 37909, United States
Clinical Study Site 112
Dallas, Texas, 75251, United States
Clinical Study Site 102
San Antonio, Texas, 78229, United States
Clinical Study Site 104
San Antonio, Texas, 78240, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 4, 2025
First Posted
December 15, 2025
Study Start
November 25, 2025
Primary Completion (Estimated)
July 1, 2026
Study Completion (Estimated)
August 1, 2026
Last Updated
May 8, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will not share