New obesity pill combo enters first human safety trial
NCT ID NCT07628127
First seen Jun 27, 2026 · Last updated Aug 12, 2026 · Updated 2 times
Summary
This early-stage study tests whether a new oral drug, VRB-103, is safe and tolerable when taken alone or with another drug (ecnoglutide) in people with obesity or overweight. About 336 participants will receive either the drug or a placebo. The goal is to check for side effects, not to cure obesity, as weight management typically requires ongoing treatment.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 336 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2026
- Expected to finish
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Mar 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 60 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Male or female assigned at birth, inclusive of all gender identities. 2. Have HbA1c ≤6.4% at Screening and Day -2 eligibility confirmation. 3. Have a BMI of: 1. ≥25 kg/m\^2 and ≤35.0 kg/m\^2 (Part A) OR 2. ≥27 kg/m\^2 and ≤40.0 kg/m\^2 (Part B and Part C) 4. Weight ≥70 kg with self-reported stable body weight (≤5% body weight change) for the 3 months prior to randomization. 5. Otherwise healthy, as defined by the absence of any clinically significant, in the Investigator's opinion, active or chronic disease (e.g., Type 2 diabetes mellitus \[T2DM\], cardiovascular \[CV\] disease, cancer, and any acute or chronic illness that could pose a problem to completing the study) as determined through a comprehensive medical and surgical history, a thorough physical exam (PE) that includes vital signs, a 12-lead Electrocardiogram (ECG), hematology, blood chemistry, serology, and urinalysis. Cardiovascular (CV) risk factors, such as dyslipidemia and mild hypertension, are expected and are allowed. 6. Have an estimated glomerular filtration rate (eGFR) \>60 mL/min at Screening and Day -2 eligibility confirmation, as calculated using the 2021 Chronic Kidney Disease Epidemiology (CKD-EPI) creatinine equation, with no other clinical or laboratory evidence of renal dysfunction or impairment. 7. Persons of childbearing potential must be non-pregnant and non-lactating and must agree to use study-specified contraceptive methods. 8. Have a resting BP of ≤140/90 millimeters of mercury (mmHg) at Screening and Day -2 eligibility with 2 or less hypertension-directed medications. Exclusion Criteria: 1. Have any prior diagnosis of type 1 diabetes mellitus or 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 HbA1c ≤6.4% at Screening and Day -2 eligibility confirmation and is not on medication to lower glucose. 2. Have at least 1 laboratory value suggestive of diabetes at Screening and Day -2 eligibility confirmation, including 1 or more of HbA1c \>6.4% (48 mmol/mol) or random glucose ≥200 mg/dL (11.1 mmol/L). 3. Have had exposure to GLP-1, glucose-dependent insulinotropic peptide (GIP), or amylin analogs within 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 product(s), to amylin analogs, to selective GLP-1 receptor agonist (RAs), or to GIP/GLP-1 or GLP-1/glucagon dual RAs. 4. Presence or history of clinically significant cardiovascular, renal, hepatic, dermatological, respiratory, neurological, psychiatric, malignant, metabolic, endocrinological, hematological, or venereal disorder, as judged by the Investigator. 5. Have a medical history of clinically significant gastric emptying abnormality (for example, severe gastroparesis or gastric outlet obstruction), chronically take drugs that directly affect gastrointestinal (GI) motility, or have a history of any clinically relevant GI diseases or symptoms of GI disorders potentially affecting interpretation of study data. 6. Have a history of hypocalcemia or ionized serum calcium below the normal range at Screening and Day -2 eligibility confirmation.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Nucleus Network
RECRUITINGMelbourne, Australia
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