New shot for obesity and diabetes passes first safety test
NCT ID NCT05925920
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early study tested a single injection of a new drug called ENT-03S in 49 people who were either obese but otherwise healthy, or had both obesity and type 2 diabetes. The main goal was to check safety and how the drug moves through the body. Participants were randomly assigned to receive either the drug or a placebo, and were monitored for two weeks.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- ENT-03S
- What this could lead to
- If successful, this could point toward a new injectable treatment for obesity and type 2 diabetes.
- What could go wrong
- This is a very early Phase 1 trial with only 49 people, focused on safety and dosing. It is too small to prove effectiveness, and many early-stage drugs do not advance.
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
-
Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
-
49 people
The number who actually took part.
- Started
-
Jun 2023
- Finished
-
Aug 2024
- Lead sponsor
-
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
-
18 to 70 years
- Sex
-
Anyone
- Healthy volunteers
-
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. Subjects aged 18-70 years, both genders. 2. Healthy as determined by a physician, based on history, medical examination, vital signs, and laboratory tests. 3. Males that agree to use condoms for the duration of participation in the study. 4. Females of non-child-bearing potential (i.e., tubal ligation, hysterectomy, or postmenopausal). 5. Female patients of child-bearing potential with negative serum pregnancy tests and who agree to use double-barrier contraception during the study. 6. Subjects must be able to read, speak, and understand English and/or Spanish and provide written informed consent, and be willing and able to comply with study procedures. 7. Subjects must have a BMI 30-35 kg/m2 inclusive assessed immediately prior to screening. 8. Fasting insulin level ≥11 mIU/L. 9. HbA1c \< 8.5% (diabetic subjects only). 10. Subjects with Type 2 diabetes on no anti-diabetic medication or on stable doses of metformin for 4 weeks or more (diabetic cohorts only). 11. No history of active or chronic disease other than that allowed by study: hypertension, hyperlipidemia, hyperglycemia, GERD, heartburn, or Type 2 diabetes (cohorts 6 and 7 only). Exclusion Criteria: 1. History of excessive alcohol use (defined as \>21 drinks per week for males and \>14 drinks per week for females), recreational drug use within the past three months, or failure on urinary drug screen. 2. Pregnant or breastfeeding within six months of screening assessment. 3. Substantial changes in eating habits or exercise routine within the preceding three months. 4. Evidence of eating disorders. 5. \>5% weight change in the past three months. 6. Bariatric surgery within the past five years. 7. Significant renal impairment (eGFR \<60 mg/mL/1.73m2). 8. Patients on anti-diabetic medications other than metformin. 9. Patients with gastroparesis. 10. Liver function tests (i.e., ALT, AST, alkaline phosphatase) greater than twice the upper limit of normal upon repeated measurements. 11. Diseases interfering with metabolism and/or ingestive behavior (e.g., myxedema, Cushing's disease, schizophrenia, major psychoses). 12. History of major depressive disorder within the previous two years, a lifetime history of suicide attempt, suicidal behavior within the previous month, or history of other severe psychiatric disorders. 13. Score of \>15 on the Columbia Suicide Severity Rating Scale (C-SSRS). 14. Use of medications affecting body weight within the past three months: * Drugs approved for the treatment of obesity * Cyproheptadine or medroxyprogesterone * Atypical anti-psychotic drugs * Tricyclic antidepressants * Lithium, MAO's, glucocorticoids * SSRI's or SNRI's * Antiepileptic drugs 15. Any clinically significant abnormality following the Investigator's review of the physical examination and clinical laboratory tests. 16. A baseline prolongation of QT/QTc interval after repeated measurements of \>450 ms; a history of unexplained syncope, cardiac arrest, unexplained cardiac arrhythmias or torsades de pointes, structural heart disease, or a family history of Long QT Syndrome (LQTS). 17. Participation in an investigational drug trial within the month prior to dosing in the present study.
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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.
Contacts and locations
Locations
-
ProSciento
San Diego, California, 91911, United States
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