New obesity drug TLC-6740 enters first human trials
NCT ID NCT05822544
First seen Jun 27, 2026 · Last updated Aug 21, 2026 · Updated 1 time
Summary
This early-stage study tests a new drug called TLC-6740 in healthy volunteers and people with obesity, with or without type 2 diabetes. The main goals are to check safety, how the body processes the drug, and to get an early look at whether it helps with weight loss or blood sugar control. The study involves up to 564 participants and is currently recruiting.
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 564 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2023
- Expected to finish
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Jan 2027
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 70 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: * Non-smoking, healthy male or female subject between 18 and 55 years of age, inclusive (Parts A-E); male or female subject between 18 and 70 years of age, inclusive (Parts F, G) * Body mass index (BMI) from 19 to 35 kg/m2, inclusive (Parts A-E); BMI ≥ 30 kg/m2 and ≤ 50 kg/m2 (Parts F, G) * Estimated glomerular filtration rate (eGFR) ≥ 80 mL/min (Parts A-E); eGFR ≥ 60 mL/min/1.73m2 or eGFR ≥ 45 mL/min/1.73m2, depending on cohort (Parts F, G) * ALT/AST/ALP ≤ 1 x ULN (Parts A-E); ALT/AST \< 3 x ULN, ALP \< 1.5 x ULN (Parts F, G) * Screening laboratory evaluations (hematology, chemistry, and urinalysis) must fall within the normal range of the local laboratory's reference ranges unless the results have been determined by the investigator to have no clinical significance (Parts A-E) * Subject must have either a normal 12-lead electrocardiogram (ECG) or one with abnormalities that are considered clinically insignificant by the investigator * Females of childbearing potential must have a negative pregnancy test at Screening and clinic admission * Male subjects and female subjects of childbearing potential who engage in heterosexual intercourse must agree to use protocol-specified method(s) of contraception * Must, in the opinion of the investigator, be in good health based upon medical history and physical examination, including vital signs Exclusion Criteria: * Pregnant or lactating subjects * Unstable type 2 diabetes (as defined as: HbA1c \> 10.0%; treatment with insulin and/or pioglitazone within 90 days prior to Screening; any history of diabetic ketoacidosis, hyperosmolar state, and/or acutely decompensated blood glucose control; hypoglycemia unawareness, hospitalization due to hypoglycemia, or history of severe hypoglycemia \[requiring outside assistance to regain normal neurologic status\]) (Part F) * History of type 2 diabetes diagnosed prior * Medical history of type 1 diabetes or latent autoimmune diabetes of adults (LADA) * 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) * Known serious hypersensitivity to tirzepatide or any of the excipients in tirzepatide (Part G) * Subjects who have any serious or active medical or psychiatric illness (including depression) that, in the opinion of the investigator, would interfere with the subject's treatment, assessment, or compliance with the protocol * Subjects who have received any investigational compound within 30 days or 5 half-lives, whichever is longer, prior to study drug dosing * Current alcohol abuse that is judged by the investigator to potentially interfere with the subject's compliance or safety * Current substance abuse that is judged by the investigator to potentially interfere with the subject's compliance or safety * A positive test result for human immunodeficiency virus (HIV-1) antibody, hepatitis B (HBV) surface antigen, or hepatitis C (HCV) antibody * Medical history of drug sensitivity or drug allergy (such as anaphylaxis or hepatoxicity) * Presence or history of cardiovascular disease, including significant cardiovascular disease (including a history of myocardial infarction based on ECG and/or clinical history), history of cardiac conduction abnormalities (including any history of ventricular tachycardia), congestive heart failure, cardiomyopathy with left ventricular ejection fraction \< 40%, a family history of Long QT Syndrome, or unexplained death in an otherwise healthy individual between the ages of 1 and 30 years * Syncope, palpitations, or unexplained dizziness * Implanted defibrillator or pacemaker * Medical history of liver disease, including but not limited to alcoholic liver disease, autoimmune disorders (e.g., primary biliary cholangitis, primary sclerosing cholangitis, autoimmune hepatitis), drug-induced hepatotoxicity, Wilson disease, clinically significant iron overload, or alpha-1-antitrypsin deficiency) * Severe peptic ulcer disease, gastroesophageal reflux disease, or other gastric acid hypersecretory conditions * History of medical or surgical treatment that permanently alters intestinal absorption (e.g., gastric or intestinal surgery) * Subjects who have received vaccination for COVID-19 within 14 days of Admission Note: Other protocol defined Inclusion/Exclusion criteria may apply.
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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
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OrsoBio Auckland Research Site 1
Auckland, New Zealand
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OrsoBio Auckland Research Site 2
Auckland, New Zealand
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OrsoBio Auckland Research Site 3
Auckland, New Zealand
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OrsoBio Research Site
Christchurch, New Zealand
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Other studies related to the condition(s) this trial covers.
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