Actively Recruiting

Phase 3
Age: 18Years +
All Genders
ID06473701

Reducing Severe Breathlessness With Dronabinol in Severe and Very Severe COPD Patients A Randomized, Double-Blind, Placebo-Controlled, Crossover Study

Led by Vejle Hospital · Updated on 2026-04-17

30

Participants Needed

1

Research Sites

4 weeks

Total Duration

On this page

Sponsors

V

Vejle Hospital

Lead Sponsor

R

Region of Southern Denmark

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are evaluating whether Dronabinol, a drug containing the synthetic compound tetrahydrocannabinol (THC), can reduce severe breathlessness in adults with severe and very severe chronic obstructive pulmonary disease (COPD). This randomized, controlled, double-blind crossover study compares Dronabinol with a placebo to assess its effects on breathlessness in these patients. Participants will receive treatment in two phases: one with Dronabinol capsules and one with matching placebo capsules. Each treatment phase lasts four weeks, including two weeks of dose titration up to 20 mg daily divided into three doses, followed by two weeks of steady dosing. A two-week washout period separates the two treatment phases. The order of treatments is randomized, so each participant receives both Dronabinol and placebo in a different sequence. During the study, participants will attend eight visits, including enrollment and follow-ups every two weeks. They will complete questionnaires about breathlessness and overall health, undergo lung function tests and six-minute walk tests, and provide blood samples to measure THC levels and hair samples for cortisol analysis. Daily breathlessness ratings and health data will be collected using questionnaires and a wearable watch. The study aims to measure differences in breathlessness discomfort and interference with activities between Dronabinol and placebo treatments over up to 70 days.

CONDITIONS

Brief Title

Reducing Breathlessness With Dronabinol in COPD Patients

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Refractory breathlessness despite optimal treatment
  • Diagnosis of severe or very severe COPD (GOLD 3 or 4)
  • Breathlessness with a modified Medical Research Council (mMRC) score of 3 or higher
  • Ability to provide informed written consent
  • Age 18 years or older
  • Cognitive ability and legal age to consent
  • Understands and speaks Danish
  • For fertile women with menstruation in the last 12 months: negative pregnancy test before joining
  • Fertile and sexually active participants must use safe contraception during the study and for 4 weeks after treatment ends
Not Eligible

You will not qualify if you...

  • Recent infection or worsening of COPD symptoms within the past 30 days
  • Regular use of THC or CBD in the past 30 days
  • Life expectancy less than 3 months
  • Use of medications that strongly affect certain liver enzymes (CYP3A4, CYP2C9, CYP2C19)
  • Significant medical or psychiatric conditions increasing risk of adverse events
  • Current or past substance abuse deemed too risky by the investigator

AI-Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - Approximately 10 weeks including washout

Participants receive two treatment periods of dronabinol and placebo in a randomized crossover design, with a washout period in between. They will complete daily questionnaires about breathlessness and wear a health-monitoring watch. Lung function tests, walking distance assessments, and health questionnaires are conducted throughout.

8 visits every two weeks (in-person)

Trial Site Locations

Total: 1 location

1

Vejle Hospital - A part of Lillebaelt Hospital

Vejle, Region Syddanmark, Denmark, 7100

Actively Recruiting

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Research Team

S

Sofie K Wolsing, MSc, RN

V

Vejle Hospital

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

CROSSOVER

Primary Purpose

SUPPORTIVE_CARE

Number of Arms

2

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Published Research Related To This Trial

Reducing severe breathlessness with dronabinol in the group of patients with severe and very severe chronic obstructive pulmonary disease (BONG): a randomised, double-blinded, placebo-controlled, crossover study in an outpatient clinic in Denmark - a study protocol.

Sofie Krogh Wolsing, Ole Hilberg, Anders Løkke...

https://pubmed.ncbi.nlm.nih.gov/41698715