A Study to Investigate the Safety and Tolerability of TE-8105 in Overweight/Obese Participants Without Diabetes

A Phase 1/2a, Open-label Study to Investigate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Effect on Body Weight of TE-8105 Administered Subcutaneously in Overweight/Obese Participants Without Diabetes

This is a Phase 1/2a, first-in-human, prospective, open-label study to evaluate the safety, tolerability, PK, PD, and effect on body weight of TE-8105 in overweight/obese participants without diabetes. Study TE-8105-101 consists of 2 parts: Part A (single-ascending dose [SAD]) and Part B (multiple-ascending dose [MAD])

Study Overview

• Status: Completed
• Conditions: Overweight and Obesity
• Intervention / Treatment: Drug: TE-8105 SAD Cohort 3; Drug: TE-8105 SAD Cohort 4; Drug: TE-8105 SAD Cohort 5 (Adaptive cohort); Drug: TE-8105 SAD Cohort 1; Drug: TE-8105 SAD Cohort 2; Drug: TE-8105 MAD Cohort 1; Drug: TE-8105 MAD Cohort 2

Detailed Description

Part A consists of 4 cohorts, with an optional adaptive cohort which may be opened if needed approximately 24 eligible participants will be assigned to Part A (SAD) (6 participants in each cohort). Part A is designed to evaluate the safety, tolerability, PK and effect on body weight of a single dose of 0.5 mg, 0.75 mg, 1.5 mg (or ≤ 2.5 mg), 3 mg (or ≤ 5 mg) TE-8105. Each participant will receive one dose of TE-8105 injection via subcutaneous (SC) injection into the abdomen administered on Day 1.

Part B consists of 2 cohorts. Approximately 14 participants will be assigned to Part B (MAD) (6 participants in B1 and 8 in B2 cohort). Part B is designed to evaluate the safety, tolerability, PK, PD, and effect on body weight of multiple SC doses 0.5 mg up to 3mg TE-8105 once every 2 weeks (Q2W). The dose levels and dosing interval of Part B may be adjusted based on the results of Part A. Each participant will receive 5 doses or 9 doses of TE-8105 injection via SC injection into the abdomen.

Progression from Part A to Part B will be based on the recommendation of the SRC.

• Study Type: Interventional
• Enrollment (Actual): 38
• Phase: Phase 2; Phase 1

Contacts and Locations

Study Locations

• Australia
  • South Australia
    • Adelaide, South Australia, Australia, 5000
      • CMAX Clinical Research

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

Adults who are overweight or obese, do not have diabetes, and who are otherwise healthy, will be recruited. Main inclusion / exclusion criteria include but are not limited to:

• Male or female between 18 and 65 years old (both inclusive, at the time of informed consent).
• Have a BMI of ≥ 25 and ≤ 34.9 kg/m² or ≥ 23 and ≤ 32.5 kg/m² for Asian and Aboriginal participants.
• Have a stable body weight, defined as < 5% change in body weight, in either direction, during the Screening period (Day -28 to Day -1).
• Hemoglobin A1C (HbA1c) < 6.5%.
• Able and willing to provide written informed consent and any locally required authorization before performing any protocol-related procedures, including screening evaluations.

Exclusion Criteria:

• Have attended any weight loss treatment or program (e.g., bariatric surgery, medication) within the 3 months prior to Screening, or have scheduled any weight loss treatment or program within the study period.
• Have had any exposure to GLP-1 analogs or other related compounds within the 3 months prior to Screening, or have a history of allergies to glucagon-like peptide-1 (GLP-1) analogs or related compounds.
• Have type 1 diabetes mellitus (T1DM) or type 2 diabetes mellitus (T2DM), a history of ketoacidosis, or hyperosmolar state/coma.
• Anything that the PI considers that would jeopardize the safety of the participant, or prevent complete participation in the study, or compromise the interpretation of study data.
• Personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2.
• Have had a history of chronic pancreatitis or idiopathic acute pancreatitis.
• History of kidney dialysis or renal impairment measured as estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m² at Screening.
• Have GI disorder (for example, relevant esophageal reflux or gall bladder disease) or any GI disease that impacts gastric emptying (for example, gastric bypass surgery, pyloric stenosis, except appendectomy) or could be aggravated by GLP-1 analogs.
• Have obesity induced by other endocrinologic disorders (e.g., Cushing Syndrome) or diagnosed monogenetic or syndromic forms of obesity (e.g., Melanocortin 4 Receptor deficiency or Prader Willi Syndrome).
• Unwilling to refrain from commencing any new strenuous exercise programs (including weightlifting) from 7 days prior to admission to the study site until 28 days after the final dose.
• Women of childbearing potential (WOCBP) must be non-pregnant and must use an acceptable, highly effective double contraception from Screening until study completion.
• Males must use an acceptable, highly effective double contraception from Screening until study completion and must not donate sperm until at least 90 days after the last dose of study drug.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Sequential Assignment
• Masking: None (Open Label)

Number of Arms

7

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Part A SAD Cohort 1; Each participant will receive TE-8105 administered by subcutaneous injection.	Drug: TE-8105 SAD Cohort 1; Each participant will receive one dose of TE-8105 0.5 up to 1.5mg injection via subcutaneous (SC) injection into the abdomen administered on Day 1.
Experimental: Part A SAD Cohort 2; Each participant will receive TE-8105 administered by subcutaneous injection.	Drug: TE-8105 SAD Cohort 2; Each participant will receive one dose of TE-8105 0.75mg injection via subcutaneous (SC) injection into the abdomen on Day 1.
Experimental: Part A SAD Cohort 3; Each participant will receive TE-8105 administered by subcutaneous injection.	Drug: TE-8105 SAD Cohort 3; Each participant will receive one dose of TE-8105 1.5 mg or less than or equal to 2.5 mg injection via subcutaneous (SC) injection into the abdomen administered on Day 1.
Experimental: Part A SAD Cohort 4; Each participant will receive TE-8105 administered by subcutaneous injection.	Drug: TE-8105 SAD Cohort 4; Each participant will receive one dose of TE-8105 3 mg or less than or equal to 5 mg injection via subcutaneous (SC) injection into the abdomen administered on Day 1.
Experimental: Part A SAD Cohort 5 (Adaptive Cohort); Each participant will receive TE-8105 administered by subcuteneous injection.	Drug: TE-8105 SAD Cohort 5 (Adaptive cohort); Each participant will receive one dose of TE-8105 less than or equal to 6 mg injection via subcutaneous (SC) injection into the abdomen administered on Day 1.
Experimental: Part B MAD Cohort 1; Each participant will receive TE-8105 administered by subcutaneous injection.	Drug: TE-8105 MAD Cohort 1; Each participant will receive 0.5mg up to 1.5mg of TE-8105 injection via SC injection into the abdomen on Day 1 and then once every 2 weeks for 5 doses.
Experimental: Part B MAD Cohort 2; Each participant will receive TE-8105 administered by subcutaneous injection.	Drug: TE-8105 MAD Cohort 2; Each participant will receive 9 doses of TE-8105 injection via SC injection into the abdomen starting from Day 1 every 2 weeks. Dose will be titrated up by 0.5mg every 4 weeks, with dose levels of 1.5mg (2 doses), 2.0 mg (2 doses), 2.5 mg (2 doses) and 3.0 mg (3 doses)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Safety and tolerability of TE-8105 by the incidence of treatment-related adverse events		SAD: From Screening until Day 43 (End of study) post dose. MAD: From Screening until Day 134 in Cohort B1 or Day 155 in Cohort B2 (End of study) post dose
Safety and tolerability of TE-8105 by the incidence of injection site reactions (ISRs)		SAD: On D 1, D 2, D 3, D 5, D 8. MAD Cohort B1: On D 1, D 2, D 3, D 8, D 15, D 29, D 43, D 57, D 64 post dose. MAD Cohort B2: On D 1, D2, D 3, D 5, D 8, D 15, D 29, D 43, D 57, D 71, D 85, D 99, D 113, D 117, D 120 and D 127
Number of participants with change in serum blood parameters	Laboratory assessment includes Hematology, coagulation and serum chemistry.	SAD: Scr, D-1, D2, D3, D8, D15, D29, D43 post dose. MAD B1: Scr, D-1, D2, D3, D8, D15, D29, D43, D57, D71, D92, D113, D134 post dose. MAD B2: Scr, D-1, D2, D3, D5, D8, D15, D29, D43, D57, D71, D85, D99, D113, D117, D120, D127, D141 and D155 post dose
Number of participants with change in urine parameters	Laboratory assessment includes urinalysis	SAD: Scr, D-1, D2, D3, D8, D15, D29, D43 post dose. MAD B1: Scr, D-1, D2, D3, D8, D15, D29, D43, D57, D71, D92, D113, D134 post dose. MAD B2: Scr, D-1, D2, D3, D5, D8, D15, D29, D43, D57, D71, D85, D99, D113, D117, D120, D127, D141 and D155 post dose
Number of participants with changes in the physical examination findings	Complete physical examinations include: general appearance, head, ears, eyes, nose, throat, neck (including thyroid and nodes), cardiovascular, respiratory, gastrointestinal, renal, neurological, musculoskeletal, skin, and other.	Scr, D-1, D3, D8, D15 and D43 post dose. MAD B1: Scr, D-1, D3, D8, D15, D29, D43, D57, D71, D92, D113, D134 post dose. MAD B2: Scr, D-1, D2, D3, D5, D8, D15, D29, D43, D57, D71, D85, D99, D113, D117, D120, D127, D141 and D155 post dose
Number of participants with changes in 12 lead ECG findings	ECG measurements to include Heart rate, PR, QRS, QT, and QTcF intervals.	Scr, D-1, D1, D2, D3, D8, D15, D43 post dose. MAD B1: Scr, D-1, D1, D2, D3, D8, D15, D29, D43, D57, D71, D92, D113, D134 post dose. MAD B2: Scr, D-1, D2, D3, D5, D8, D15, D29, D43, D57, D71, D85, D99, D113, D117, D120, D127, D141 and D155 post dose
Number of participants with changes in temperature		SAD: Scr, D-1, D1, D2, D3, D5, D8, D15, D43; MAD B1: Scr, D-1, D1, D2, D3, D8, D15, D29, D43, D57, D64, D71, D92, D113, D134; MAD B2: Scr, D-1, D2, D3, D5, D8, D15, D29, D43, D57, D71, D85, D99, D113, D117, D120, D127, D141 and D155 post dose
Number of participants with changes in blood pressure (BP)	Systolic and diastolic BP will be measured	SAD: Scr, D-1, D1, D2, D3, D5, D8, D15, D43; MAD B1: Scr, D-1, D1, D2, D3, D8, D15, D29, D43, D57, D64, D71, D92, D113, D134; MAD B2: Scr, D-1, D2, D3, D5, D8, D15, D29, D43, D57, D71, D85, D99, D113, D117, D120, D127, D141 and D155 post dose
Number of participants with changes in heart rate (HR)		SAD: Scr, D-1, D1, D2, D3, D5, D8, D15, D43; MAD B1: Scr, D-1, D1, D2, D3, D8, D15, D29, D43, D57, D64, D71, D92, D113, D134; MAD B2: Scr, D-1, D2, D3, D5, D8, D15, D29, D43, D57, D71, D85, D99, D113, D117, D120, D127, D141 and D155 post dose
Number of participants with changes in respiratory rate (RR)		SAD: Scr, D-1, D1, D2, D3, D5, D8, D15, D43; MAD B1: Scr, D-1, D1, D2, D3, D8, D15, D29, D43, D57, D64, D71, D92, D113, D134; MAD B2: Scr, D-1, D2, D3, D5, D8, D15, D29, D43, D57, D71, D85, D99, D113, D117, D120, D127, D141 and D155 post dose

Secondary Outcome Measures

Outcome Measure	Time Frame
PK Parameters : Maximum observed concentration (Cmax)	SAD: Predose and post dose on D1, D2, D3, D5, D8, D11, D15, D22, D29, D43 (EOS)
PK Parameters : Maximum observed concentration (Cmax)	MAD B1: Pre and post dose on D1, D2, D3, D8, D15, D29, D43, D57, D58, D59, D64, D71, D92, D113, D134; MAD B2: Pre and post dose on D1, D2, D3, D5, D8, D15, D29, D43, D57, D58, D71, D85, D99, D113, D114, D115, D117, D120, D127, D141 and D155
PK Parameters : Time to maximum observed concentration (Tmax)	SAD: Predose and post dose on D1, D2, D3, D5, D8, D11, D15, D22, D29, D43 (EOS)
PK Parameters : Time to maximum observed concentration (Tmax)	MAD B1: Pre and post dose on D1, D2, D3, D8, D15, D29, D43, D57, D58, D59, D64, D71, D92, D113, D134; MAD B2: Pre and post dose on D1, D2, D3, D5, D8, D15, D29, D43, D57, D58, D71, D85, D99, D113, D114, D115, D117, D120, D127, D141 and D155
PK Parameters : Area under the concentration-time curve (AUC) from time zero to the last measurable concentration (AUC 0-last)	SAD: Predose and post dose on D1, D2, D3, D5, D8, D11, D15, D22, D29, D43 (EOS)
PK Parameters : Area under the concentration-time curve (AUC) from time zero to the last measurable concentration (AUC 0-last)	MAD B1: Pre and post dose on D1, D2, D3, D8, D15, D29, D43, D57, D58, D59, D64, D71, D92, D113, D134; MAD B2: Pre and post dose on D1, D2, D3, D5, D8, D15, D29, D43, D57, D58, D71, D85, D99, D113, D114, D115, D117, D120, D127, D141 and D155
PK Parameters : Minimum observed concentration (Cmin)	MAD B1: Pre and post dose on D1, D2, D3, D8, D15, D29, D43, D57, D58, D59, D64, D71, D92, D113, D134; MAD B2: Pre and post dose on D1, D2, D3, D5, D8, D15, D29, D43, D57, D58, D71, D85, D99, D113, D114, D115, D117, D120, D127, D141 and D155
PK Parameters : AUC over a dosing interval (AUCτ).	MAD B1: Pre and post dose on D1, D2, D3, D8, D15, D29, D43, D57, D58, D59, D64, D71, D92, D113, D134; MAD B2: Pre and post dose on D1, D2, D3, D5, D8, D15, D29, D43, D57, D58, D71, D85, D99, D113, D114, D115, D117, D120, D127, D141 and D155
Number of participants with change in body weight from baseline with multiple doses of TE-8105.	Up to 20 weeks post first dose administration in MAD Cohort B1 and up to 23 weeks post first dose administration in MAD Cohort B2
Number of participants with change in Body mass index (BMI) from baseline with multiple doses of TE-8105.	Up to 20 weeks post first dose administration in MAD Cohort B1 and up to 23 weeks post first dose administration in MAD Cohort B2

Collaborators and Investigators

• Sponsor: Immunwork, Inc.

Study record dates

Study Major Dates

• Study Start (Actual): July 9, 2024
• Primary Completion (Actual): January 3, 2025
• Study Completion (Actual): June 7, 2025

Study Registration Dates

• First Submitted: June 6, 2024
• First Submitted That Met QC Criteria: June 18, 2024
• First Posted (Actual): June 24, 2024

Study Record Updates

• Last Update Posted (Actual): January 9, 2026
• Last Update Submitted That Met QC Criteria: January 7, 2026
• Last Verified: January 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Nutrition Disorders; Overnutrition; Body Weight; Pathological Conditions, Signs and Symptoms; Nutritional and Metabolic Diseases; Signs and Symptoms; Overweight; Obesity
• Other Study ID Numbers: TE-8105-101

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No