New Weight-Loss drug MD-18 enters early human safety testing
NCT ID NCT06739707
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage trial is testing a new drug called MD-18 in healthy adults who are overweight or obese. The main goal is to check if the drug is safe and how the body processes it. About 54 participants will receive either MD-18 or a placebo by injection. The study is currently on hold.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- MD-18
- What this could lead to
- If successful, this could point toward a new treatment to help control weight in people who are overweight or obese.
- What could go wrong
- This is a very early Phase 1 trial focused on safety, not weight loss. It is currently suspended, and the drug may not work or could have side effects.
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
-
About 54 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Jan 2025
- Expected to finish
-
Dec 2026
An estimate. End dates often move.
- 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. BMI: * Cohorts 1-6: 25-34.9 * Cohort 7: 30.0-44.9 3. HbA1c \<6.5% 4. Healthy as determined by a physician, based on history, medical examination, vital signs, laboratory tests, cardiac monitoring and respiratory function. History must comply with the following: 1. Absence of clinically significant illness or major surgery within the preceding 12 weeks. 2. Absence of clinically significant history of neurological, endocrine, cardiovascular, pulmonary, hematological, immunologic, psychiatric, gastrointestinal, renal, hepatic, and/or metabolic disease as per PI decision. 5. Male subjects with female partners of childbearing potential must agree to utilize an approved contraceptive during the study. 6. Female subjects of child-bearing potential with negative urine pregnancy test at screening and who agree to use contraception during the study. 7. Female subjects of non-child-bearing potential (i.e. tubal ligation, hysterectomy, or postmenopausal). 8. Subjects must provide written informed consent and be willing and able to comply with study procedures. 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. Note: use of Cannabinoids for medical purposes is allowed. 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. Moderate renal impairment ( Glomerular filtration rate\<60 mg/mL/1.73m2) 8. Liver function tests greater than twice the upper limit of normal upon repeated measurements. 9. Diseases interfering with metabolism and or ingestive behavior (e.g., myxedema, Cushing's disease, schizophrenia, major psychoses, unmanaged depression). 10. Use of medications affecting body weight within the past three months, unless on a stable dose, with weight stability in the preceding three months. These medications include: 1. Drugs approved for the treatment of obesity 2. Cyproheptadine or medroxyprogesterone 3. Atypical anti-psychotic drugs 4. Tricyclic antidepressants 5. Lithium, MAO's, glucocorticoids 6. SSRIs or SNRIs 7. Anti-epileptic drugs 11. Any clinically significant abnormality following the Investigator's review of the physical examination and clinical laboratory tests. 12. A baseline (screening echocardiogram result) prolongation of ventricular activation and recovery interval after repeated measurements of \>450 milliseconds; 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. 13. Use drugs of abuse within the preceding three months. 14. The last dose of an investigational drug in other clinical trial was within the month prior to dosing in the present study. Note: Volunteers from the previous Phase 1a trial (MD-18-01) may be recruited for the current study, provided that at least 12 weeks have passed since their last dose of the investigational product. 15. A positive result for any of the following tests: hepatitis B virus (HBV), hepatitis C virus (HCV), human immunodeficiency viruses (HIV) and Treponema pallidum.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Healthy volunteer are added.
Genom att skicka in godkänner du våra Användarvillkor
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.
-
The places running it
1 site. The list below names each one and where it is.
-
The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
-
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
-
Sheba Medical Center
Ramat Gan, Please Select, 522651, Israel
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Which exercise dose best helps kids with metabolic syndrome?
- Custom knee guides put to the test in obese patients
- A pill for obesity? early human trial puts MDR-001 to the test
- Can a weekly shot help people who still struggle with weight after bariatric surgery?
- Do GLP-1 Weight-Loss drugs change how teens eat and feel?
- Can electrical muscle stimulation boost exercise benefits after menopause?