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Study of Subcutaneously Administered ENT-03 for the Treatment of Obesity and Diabetes

A First in Human, Single Center, Single Dose, Randomized, Placebo-controlled, Dose, Escalating Study to Evaluate Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Subcutaneously Administered ENT-03S for the Treatment of Obesity and Diabetes

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05925920
Enrollment
49
Registered
2023-06-29
Start date
2023-06-13
Completion date
2024-08-12
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus, Type 2, Obesity

Brief summary

Single center, single-dose, randomized, placebo-controlled, dose-escalating study to evaluate, safety, tolerability, pharmacokinetics, and pharmacodynamics of escalating doses of ENT-03S in obese but otherwise healthy subjects and in subjects with obesity and Type 2 diabetes.

Interventions

DRUGENT-03

single dose of active drug

DRUGPlacebo

single dose of placebo comparator

Sponsors

Metabolics Pharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
OTHER
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

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.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)From Day 1 (dosing visit) through Day 14 (End of Study visit), approximately 3 to 4 weeksTreatment Emergent Adverse events (TEAEs) were collected from Day 1 (dosing visit ) through End of Study visit (Day 14 post-dose). TEAEs were defined as any AE with onset on or after the date of study drug administration. TEAEs were recorded by the investigator based on subject report, clinical observation, physical examination, vital signs, laboratory assessments, and ECG findings. Severity was graded per NCI CTCAE v5.0. Relatedness to study drug was assessed by the investigator. TEAEs of special interest included nausea, vomiting, and injection site reactions.
Safety and Tolerability of ENT-03Baseline (pre-dose Day 1), Day 4 (72 hours post-dose), and Day 8 (168 hours post-dose, End of Study)QTcF (Fridericia-corrected QT interval) was assessed via 12-lead resting ECG at baseline (pre-dose Day 1) and at 72 hours post-dose (Day 4) and 168 hours post-dose (Day 8, End of Study).

Secondary

MeasureTime frameDescription
Pharmacokinetic Endpoints: Maximum Plasma ConcentrationPre-dose (0 hours) and at 0.5, 1, 1.5, 2, 4, 8, 12, 24, 48, 72, 96, 120, 144, and 168 hours post-dose. Note: Cohorts 1 and 2 had samples collected through 72 hours; Cohort 3 through 120 hours; Cohorts 4-7 through 168 hours.maximum measured plasma concentration
Area Under the Plasma Concentration-Time Curve From Time Zero to 24 Hours Post-Dose (AUC₀-₂₄)0, 0.5, 1, 1.5, 2, 4, 8, 12, and 24 hours post-dose (Cohorts 3-7); 0, 1, 2, 4, 8, 12, and 24 hours post-dose (Cohorts 1-2)area under the concentration versus time curve over 24 hours
Pharmacokinetic Endpoint: Half-lifeSampling through 72 hours post-dose (Cohorts 1-2), 120 hours (Cohort 3), and 168 hours (Cohorts 4-7).time required for drug concentration to decrease to 50% of maximum concentration
Change in Body Weight From Baseline to Day 8Baseline (pre-dose Day 1) and Day 8 (168 hours post-dose, End of Study)Body weight (kg) was measured at baseline (last measurement prior to first dose administration on Day 1) and at 168 hours post-dose (Day 8, End of Study). Change from baseline was calculated as the Day 8 value minus the baseline value.
Pharmacodynamic Endpoint: Change in Fasting Leptin From Baseline to Day 8Baseline (pre-dose Day 1) and Day 8 (168 hours post-dose, End of Study)Fasting leptin (ng/mL) was measured at baseline (last measurement prior to first dose administration on Day 1) and at post-dose visits. For Cohorts 1-3, assessments were performed at 24 hours (Day 2), 48 hours (Day 3), 72 hours (Day 4), and 168 hours post-dose (Day 8, End of Study). For Cohorts 4-7, assessments were performed at 72 hours (Day 4) and 168 hours post-dose (Day 8, End of Study) only. Change from baseline was calculated as the visit value minus the baseline value.
Pharmacodynamic Endpoint: Change in Fasting Plasma Glucose From Baseline to Day 8Baseline (pre-dose Day 1) and Day 8 (168 hours post-dose, End of Study)Fasting plasma glucose (mg/dL) was measured at baseline (last measurement prior to first dose administration on Day 1) and at post-dose visits. For Cohorts 1-3, assessments were performed at 24 hours (Day 2), 48 hours (Day 3), 72 hours (Day 4), and 168 hours post-dose (Day 8, End of Study). For Cohorts 4-7, assessments were performed at 72 hours (Day 4) and 168 hours post-dose (Day 8, End of Study) only. Change from baseline was calculated as the visit value minus the baseline value.
Pharmacodynamic Endpoint: Change in Fasting Serum Insulin From Baseline to Day 8Baseline (pre-dose Day 1) and Day 8 (168 hours post-dose, End of Study)Fasting serum insulin (μIU/mL) was measured at baseline (last measurement prior to first dose administration on Day 1) and at post-dose visits. For Cohorts 1-3, assessments were performed at 24 hours (Day 2), 48 hours (Day 3), 72 hours (Day 4), and 168 hours post-dose (Day 8, End of Study). For Cohorts 4-7, assessments were performed at 72 hours (Day 4) and 168 hours post-dose (Day 8, End of Study) only. Change from baseline was calculated as the visit value minus the baseline value.

Countries

United States

Contacts

STUDY_DIRECTORRichard Larson, MD

Enterin Inc.

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
2 Participants
Age, Categorical
Between 18 and 65 years
12 Participants
Age, Continuous54.0 years
STANDARD_DEVIATION 10.3
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
6 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
6 Participants
Race (NIH/OMB)
White
5 Participants
Region of Enrollment
United States
14 Participants
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
deaths
Total, all-cause mortality
0 / 50 / 50 / 50 / 50 / 50 / 50 / 50 / 14
other
Total, other adverse events
1 / 52 / 55 / 54 / 54 / 54 / 53 / 53 / 14
serious
Total, serious adverse events
0 / 50 / 50 / 50 / 50 / 50 / 50 / 50 / 14

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 2, 2026