NCT01040910

Brief Summary

Background: The marijuana plant Cannabis has been used for centuries in the medicinal treatment of many disorders and is still the subject of medical research and public debate. Cannabinoids have been purported to alleviate a variety of neurological conditions such as MS-related symptoms including spasticity, pain, tremor and bladder dysfunction. Other neurological conditions like chronic intractable pain, dystonic movement disorders and Tourette's Syndrome were all reported to be alleviated by cannabis use. Cannabis has been used to treat anorexia in AIDS and cancer patients. In gastroenterology cannabis has been used to treat symptoms and diseases including anorexia, emesis, abdominal pain, gastroenteritis, diarrhoea, intestinal inflammation and diabetic gastroparesis. Cannabinoids have also a profound anti inflammatory effect, mainly through the CB2 receptor. Cell mediated immunity may be impaired in chronic marijuana users. And a potent anti-inflammatory effect of cannabis was observed in rats . Studying the functional roles of the endocannabinoid system in immune modulation reveals that there are no major immune events which do not involve the endocannabinoid system. Cannabinoids shift the balance of pro-inflammatory cytokines and anti-inflammatory cytokines towards the T-helper cell type 2 profiles (Th2 phenotype), and suppress cell-mediated immunity whereas humoral immunity may be enhanced. They are therefore used for various inflammatory conditions including rheumatoid arthritis and asthma. In a mouse model of colitis cannabinoids were found to ameliorate inflammation and there are many anecdotal reports about the effect of cannabis in inflammatory bowel disease. However, there are no methodical reports of the effect of cannabis on inflammatory bowel disease. The aim of the proposed study is to examine in a double blind placebo controlled fashion the effect of smoking cannabis on disease activity in patients with IBD.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Jan 2010

Typical duration for phase_1

Geographic Reach
1 country

2 active sites

Status
unknown

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

December 29, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

December 30, 2009

Completed
2 days until next milestone

Study Start

First participant enrolled

January 1, 2010

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2012

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2012

Completed
Last Updated

December 16, 2011

Status Verified

December 1, 2011

Enrollment Period

2.4 years

First QC Date

December 29, 2009

Last Update Submit

December 15, 2011

Conditions

Keywords

cannabisCrohn's diseaseUlcerative colitisIBD

Outcome Measures

Primary Outcomes (1)

  • reduction of CDAI by 70 points

    8 weeks

Secondary Outcomes (3)

  • adverse events due to cannabis smoking

    8 weeks

  • change in quality of life before and at the end of study

    8 weeks

  • change in IL-10. IL-2. TGF beta

    week 0 and week 8

Study Arms (2)

cannabis smoking for IBD

ACTIVE COMPARATOR

patients with active disease receiving active cannabis for smoking

Drug: smoking of cannabis

patients smoking non active cannabis

PLACEBO COMPARATOR

patients with active disease receiving cannabis from which active ingredients have been chemically removed

Drug: smoking cigarettes with placebo

Interventions

smoking of cannabis, 2 cigarettes a day, equivalent to about 50 mg THC

cannabis smoking for IBD

smoking cigarettes with cannabis that was chemically treated so that most active ingredients were removed

patients smoking non active cannabis

Eligibility Criteria

Age20 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with a diagnosis IBD at least 3 months before recruitment will be eligible to the study.
  • Patients with active disease who are resistant to either 5 ASA, steroids or immunomodulators, or who can not receive those drugs due to adverse reactions will be offered the possibility of smoking cannabis at a dose of two cigarettes a day which will contain either regular cannabis or pre treated cannabis as placebo.
  • Disease activity index of either CDAI of more then 200 in Crohn's disease or Mayo score above 3 in UC.
  • Age above 20.

You may not qualify if:

  • Patients with a known mental disorder
  • Patients who are deemed to be at a high risk of abuse or addiction to the study drug.
  • Pregnant women
  • Patients who are sensitive to any of the ingredients of the study medication.
  • Patients who are unable to give informed consent.
  • Patients who may need surgery in the near future.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Meir hospital

Kfar Saba, 44281, Israel

RECRUITING

Meir Medical center

Kfar Saba, Israel

RECRUITING

Related Publications (2)

  • Naftali T, Bar-Lev Schleider L, Scklerovsky Benjaminov F, Konikoff FM, Matalon ST, Ringel Y. Cannabis is associated with clinical but not endoscopic remission in ulcerative colitis: A randomized controlled trial. PLoS One. 2021 Feb 11;16(2):e0246871. doi: 10.1371/journal.pone.0246871. eCollection 2021.

  • Naftali T, Bar-Lev Schleider L, Dotan I, Lansky EP, Sklerovsky Benjaminov F, Konikoff FM. Cannabis induces a clinical response in patients with Crohn's disease: a prospective placebo-controlled study. Clin Gastroenterol Hepatol. 2013 Oct;11(10):1276-1280.e1. doi: 10.1016/j.cgh.2013.04.034. Epub 2013 May 4.

MeSH Terms

Conditions

Crohn DiseaseColitis, UlcerativeMarijuana Abuse

Condition Hierarchy (Ancestors)

Inflammatory Bowel DiseasesGastroenteritisGastrointestinal DiseasesDigestive System DiseasesIntestinal DiseasesColitisColonic DiseasesSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Study Officials

  • Fred Konikoff, professor

    Sackler school of medicine Tel Aviv university

    STUDY CHAIR
  • Timna Naftali

    Meir Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Timna Naftali, MD

CONTACT

Fred Konikoff, Professor

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

December 29, 2009

First Posted

December 30, 2009

Study Start

January 1, 2010

Primary Completion

June 1, 2012

Study Completion

July 1, 2012

Last Updated

December 16, 2011

Record last verified: 2011-12

Locations