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NCT Number: NCT06137365

Cannabis for Obesity Trial

The goal of this study is to determine the initial efficacy of once daily oral cannabis for weight loss in obese individuals.

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Key information

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male or female.
  • Age 18-65 years.
  • BMI >=30 kg/m2 (i.e., obese).
  • In good health, determined by no clinically significant findings from medical history, physical examination, 12-lead ECG, vital sign measurements, and clinical laboratory evaluations at Screening and/or Check-in as assessed by one of the MD study personnel.
  • Able to speak and read English.
  • Apple or Android phone, or Android tablet with wi-fi or cellular service.
  • Vital signs at Screening and Check-in as per the following ranges and stable (measured in a supine position after a minimum of 5 minutes of rest):
  • Systolic blood pressure ≥ 90 and ≤ 140 mmHg
  • Diastolic blood pressure ≥ 50 and ≤ 90 mmHg
  • Pulse rate ≥ 50 and ≤ 100 bpm

Exclusion criteria

  • UK Students cannot participant
  • Current cannabis use (e.g., past month; negative test for cannabinoids during screening) and no more than 15 self-reported lifetime uses.
  • Self-reported current use of CBD.
  • Severe past negative experience with cannabis or cannabinoid use (e.g., panic attack, anxiety).
  • Use of any anti-obesity medication in the past 90 days. Specifically GLP-1 agonists (e.g., liraglutide, semaglutide, tirzepatide), SGLT-2 inhibitors (e.g., canagliflozin, dapagliflozin, empagliflozin, ertugliflozin), sulfonylureas (e.g., glimepiride, glipizide), medlitinides (e.g., repaglinide, nateglinide), Contrave, phentermine (alone or combination product such as Qsymia) or Orlistat. Stable use of metformin is permitted.
  • Current treatment with insulin.
  • History of type 1 diabetes.
  • Stable body weight over the past 3 months. No changes greater than 5 kg.
  • History of stomach or intestinal surgery or resection for obesity or otherwise (such as gastric bypass, sleeve-gastrectomy, bowel or small bowel resection) that would potentially alter absorption and/or excretion of orally administered drugs (uncomplicated appendectomy, cholecystectomy, and hernia repair > 6 months prior to Screening will be allowed).
  • Obesity secondary to a known genetic, endocrine, or medical condition, such as polycystic ovarian syndrome, hypothyroidism, Cushing's syndrome, growth hormone deficiency, insulinoma, hypothalamic disorders (e.g., Froelich syndrome, Bardet-Biedl syndrome, Prader-Willi syndrome)
  • Moderate or Severe Substance Use Disorder according to DSM-5 criteria; urine test positive for recent use of an abused drug.
  • History of significant psychiatric disorder (e.g., bipolar, schizophrenia, depression, history of panic attacks).
  • Current use of psychiatric medications (e.g., antipsychotics, antidepressants, anxiolytics).
  • Current use of medications associated with hemodynamic instability (e.g., amphetamines, other sympathomimetic agents, atropine, scopolamine, other anticholinergic agents).
  • Current use of medications that are inhibitors of CYP2C9 (e.g., amiodarone, fluconazole) or CYP3A4 enzymes (e.g., ketoconazole, itraconazole, clarithromycin, ritonavir, erythromycin, grapefruit juice).
  • A score of 15 or more on the Patient Health Questionnaire (PHQ-9).
  • Current or past year history of one or more of the following disorders associated with overeating: rumination disorder, bulimia nervosa, severe/extreme binge eating disorder (>7 episodes per week) or other specified/unspecified feeding/eating disorder that would increase risk to the participant or complicate interpretation of the data. Individuals who report mild to moderate (<7 episodes per week) binge eating disorder are eligible.
  • Female participant who is pregnant, breast-feeding, or intends to become pregnant, or is of child-bearing potential and not using a highly effective contraceptive method.
  • Male participant who is not using a highly effective contraceptive method or who has a female partner who is not using a highly effective contraceptive method.
  • Any clinically important uncontrolled illness, medical/surgical procedure, or major trauma within 8 weeks prior to dose administration on Day 1.
  • History of congestive heart failure or arrhythmias.
  • Any of the following cardiovascular events in the past 3 months
  • acute myocardial infarction
  • cerebrovascular accident (stroke)
  • unstable angina
  • Lab-Screening Exclusion:
  • Thyroid-stimulating hormone (TSH) level outside of the normal range, confirmed on repeat testing
  • AST, ALT, or alkaline phosphatase >2x ULN
  • EGFR <60 ml/min as calculated using the Cockroft-Gault equation.
  • History of significant hypersensitivity, intolerance, or allergy to a cannabinoid or "gummy" product.
  • Current use of any medications or supplement which would either compromise the validity of the study or the safety of the participant.
  • History of seizure or predisposing factors for seizure (head trauma resulting in unconsciousness in past six months or CNS tumors).
  • Meeting the following criteria from the Columbia Suicide Severity Rating Scale (C-SSRS):
  • "yes" to Question 4 (Active Suicidal Ideation with Some Intent to Act, Without Specific Plan) or
  • "yes" to Question 5 (Active Suicidal Ideation with Specific Plan and Intent) or
  • "yes" to any of the suicide-related behaviors (actual attempt, interrupted attempt, aborted attempt, preparatory act, or behavior) and
  • the ideation or behavior occurred within the past month.
  • Any disorder, unwillingness, or inability, not covered by any of the other exclusion criteria, which in an investigator's opinion, might jeopardize the participant's safety or compliance with the protocol.

Treatment and study plan

Cannabis

Drug

Cannabis gummy product will be prepared using cannabis flower extract.

Placebo

Drug

Placebo gummy product will be prepared using the same ingredients as the cannabis gummy but will not contain active cannabinoids.

Primary outcomes

  1. Weight change

    Time frame: weekly for duration of 6-month trial

    measured in kg using digital scale

Study contacts

Contact information is provided by the study sponsor or research team.

Joshua Lile

CONTACT

[email protected]

8594200503

Sponsors and collaborators

Lead sponsor

Joshua A. Lile, Ph.D.

Other

Registry information

Official study title

A Randomized, Placebo-Controlled Clinical Trial of Once Daily Oral Cannabis for Weight Loss in Obese Individuals

Important dates

Study start
2026
Primary completion
2028
Study completion
2028
First posted
Nov 18, 2023
Registry last updated
Jun 25, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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