Reducing Breathlessness With Dronabinol in COPD Patients
BONG
BONG: Reducing Severe Breathlessness With Dronabinol in the Severe and Very Severe Chronic Obstructive Pulmonary Disease Patient Group - A Randomized, Double-Blind, Placebo-Controlled, Crossover Study
1 other identifier
interventional
30
1 country
1
Brief Summary
This clinical trial examines whether Dronabinol, which contains the synthetic psychoactive compound tetrahydrocannabinol (THC), can alleviate severe breathlessness in patients with severe and very severe chronic obstructive pulmonary disease (COPD).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Feb 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 22, 2024
CompletedFirst Posted
Study publicly available on registry
June 25, 2024
CompletedStudy Start
First participant enrolled
February 26, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 1, 2026
April 17, 2026
April 1, 2026
1.5 years
May 22, 2024
April 16, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Difference in Numeric Rating Scale score of discomfort of daily breathlessness between active treatment and placebo
Numeric rating scale score range 0-10. Higher score reflects higher discomfort of breathlessness
Assessed daily in the baseline period and through both treatment periods. Up to 70 days
Difference in Numeric Rating Scale score of breathlessness interference of daily activities between active treatment and placebo
Numeric rating scale score range 0-10. Higher score reflects more breathlessness interference on daily activities
Assessed daily in the baseline period and through both treatment periods. Up to 70 days
Correlation between breathlessness rated on a daily numeric rating scale in relation to amount of THC blood level of the active treatment period
Numeric rating scale score range 0-10. Higher score reflects higher discomfort of breathlessness
Assessed daily in the baseline period and through both treatment periods. Up to 70 days
Correlation between breathlessness interference of daily activities rated on a numeric rating scale in relation to amount of THC blood level of the active treatment period
Numeric rating scale score range 0-10. Higher score reflects more breathlessness interference on daily activities
Assessed daily in the baseline period and through both treatment periods. Up to 70 days
Secondary Outcomes (12)
Difference in Multidimensional Dyspnea Profile questionnaire score between active treatment and placebo period
Baseline (T1; day 1) and after each treatment period (T4; day 28, T7; day 70)
Difference in COPD Assessment Test questionnaire score between active treatment and placebo period
Baseline (T1; day 1) and after each treatment period (T4; day 28, T7; day 70)
Difference in Chronic Respiratory Disease Questionnaire score between active treatment and placebo period
Baseline (T1; day 1) and after each treatment period (T4; day 28, T7; day 70)
Difference in Hospital Anxiety and Depression Scale questionnaire score between active treatment and placebo period
Baseline (T1; day 1) and after each treatment period (T4; day 28, T7; day 70)
Difference in Medical Research Council Dyspnea Scale questionnaire score between active treatment and placebo period
Baseline (T1; day 1) and after each treatment period (T4; day 28, T7; day 70)
- +7 more secondary outcomes
Other Outcomes (2)
Difference in clinical parameters between active treatment and placebo period using a yet unspecified continuous monitoring device.
Baseline (T1; day 1) and after each treatment period (T4; day 28, T7; day 70)
Difference in stand-to-sit-test between active treatment and placebo
Baseline (T1; day 1) and after each treatment period (T4; day 28, T7; day 70)
Study Arms (2)
Dronabinol 20 mg, then placebo
EXPERIMENTALIn this arm, the study subject will first receive dronabinol 2.5 mg capsules. For two weeks the subject will titrate dose with one capsule corresponding to 2.5 mg dronabinol every other day until 20 mg. Doses are divided into three times a day. After up titration the subject will receive 20 mg daily treatment over a period of 2 weeks. After a wash out period of 2 weeks, study subject will receive placebo capsules (matching dronabinol 2.5 mg capsules). For two weeks the subject will titrate with one capsule every other day until 20 mg. Doses are divided into three times a day. After up titration the subject will receive 8 daily placebo capsules over a period of 2 weeks.
Placebo, then dronabinol 20 mg
PLACEBO COMPARATORIn this arm, the study subject will first receive placebo capsules (matching dronabinol 2.5 mg capsules). For two weeks the subject will titrate with one capsule every other day until 20 mg. Doses are divided into three times a day. After up titration the subject will receive 8 daily placebo capsules over a period of 2 weeks. After a wash out period of 2 weeks, study subject will receive dronabinol 2.5 mg capsules. For two weeks the subject will titrate dose with one capsule corresponding to 2.5 mg dronabinol every other day until 20 mg. Doses are divided into three times a day. After up titration the subject will receive 20 mg daily treatment over a period of 2 weeks.
Interventions
Dronabinol 2.5 mg pr capsule. Titration up till 20 mg daily dose.
Dronabinol-matched placebo capsule containing no active substance.
Eligibility Criteria
You may qualify if:
- Refractory dyspnea despite optimal treatment
- COPD (GOLD 3,4)
- Breathlessness corresponding to mMRC score ≥ 3
- Informed written consent
- Age ≥ 18 years
- Cognitive relevant, of legal age
- Understands and speaks Danish
- For fertile women defined by amenorrhea for less than 12 months: negative HCG before entry into the trial
- For fertile and sexually active subjects: use of safe contraception during medication intake and 4 weeks after: intrauterine device (IUD) or hormonal contraception (oral contraceptive pill, implant, transdermal patch, vaginal ring or depot injection).
You may not qualify if:
- Ongoing infection or exacerbation of COPD within the last month (30 days)
- Regular treatment with THC or CBD within 1 month (30 days)
- Life expectancy less than 3 months (90 days)
- Treatment with medicines that, according to the summary of product characteristics, are strong inhibitors or inducers of CYP3A4, CYP2C9 or CYP2C19
- History of or current evidence of significant medical or psychiatric disorder that is considered by the investigator to put the subject at greater risk of experiencing an adverse event
- Current or past substance abuse where the investigator finds it too risky for the subject to be included in the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Vejle Hospitallead
- Region of Southern Denmarkcollaborator
- University of Southern Denmarkcollaborator
- Odense Patient Data Explorative Networkcollaborator
- University of Aarhuscollaborator
Study Sites (1)
Vejle Hospital - A part of Lillebaelt Hospital
Vejle, Region Syddanmark, 7100, Denmark
Related Publications (1)
Wolsing SK, Hilberg O, Lokke A, Farver-Vestergaard I, Andersen CU, Hansen KK. 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. BMJ Open. 2026 Feb 16;16(2):e104957. doi: 10.1136/bmjopen-2025-104957.
PMID: 41698715DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Ole Hilberg, Prof., MD
Medical Department, Vejle Hospital
Central Study Contacts
Vejle Hospital
CONTACT
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- An external party will manage the randomization process, assigning participants equally to either the active treatment or placebo groups in a 1:1 ratio. The randomization will be conducted using www.sealedenvelope.com and will incorporate varying block sizes, such as 4, 6, and 8 participants per block. Consequently, each medication container will be labeled with a unique participant number.
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 22, 2024
First Posted
June 25, 2024
Study Start
February 26, 2025
Primary Completion (Estimated)
September 1, 2026
Study Completion (Estimated)
October 1, 2026
Last Updated
April 17, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share
It is the plan to share SAP when this is finalized. It is undecided whether CSR and analytic code will be shared on a platform or available on reasonable request.