An Investigation of Delta-9-tetrahydrocannabinol (THC) and Cannabidiol (CBD) in Multiple Sclerosis Patients
Double Blind, Randomised, Parallel Group, Placebo Controlled Trial of a Combination of THC and CBD in Patients With Multiple Sclerosis, Followed by an Open Label Assessment and Study Extension
1 other identifier
interventional
160
1 country
1
Brief Summary
A study to compare the efficacy of GW-1000-02 \[named Sativex® in Canada and also named Sativex® Oromucosal Spray\] with placebo in relieving five key symptoms of Multiple Sclerosis after six weeks of therapy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3 multiple-sclerosis
Started May 2001
Shorter than P25 for phase_3 multiple-sclerosis
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
Study Start
First participant enrolled
May 1, 2001
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2002
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2002
CompletedFirst Submitted
Initial submission to the registry
May 31, 2012
CompletedFirst Posted
Study publicly available on registry
June 4, 2012
CompletedResults Posted
Study results publicly available
September 19, 2012
CompletedJanuary 12, 2023
December 1, 2022
1.2 years
May 31, 2012
July 18, 2012
December 19, 2022
Conditions
Outcome Measures
Primary Outcomes (1)
Change From Baseline in Composite Primary Impairment Visual Analogue Scale Score at the End of 6 Weeks of Treatment
This was achieved by measuring the change from baseline after six weeks of therapy in the severity of the primary impairment, a composite score from one of five Multiple Sclerosis symptom categories that subjects nominated as their most severe symptom. The severity scores were recorded using a 100 mm Visual Analogue Scale, where 0 = no problem and 100 = very bad. A decrease in score indicates an improvement.
baseline and 6 weeks
Secondary Outcomes (24)
Change From Baseline in Spasticity Visual Analogue Scale Score at the End of 6 Weeks of Treatment
baseline and 6 weeks
Change From Baseline in Pain Visual Analogue Scale Score at the End of 6 Weeks of Treatment
baseline and 6 weeks
Change From Baseline in Muscle Spasm Visual Analogue Scale Score at the End of 6 Weeks of Treatment
baseline and 6 weeks
Change From Baseline in Tremor Visual Analogue Scale Score at the End of 6 Weeks of Treatment
baseline and 6 weeks
Change From Baseline in Bladder Problems Visual Analogue Scale Score at the End of 6 Weeks of Treatment
baseline and 6 weeks
- +19 more secondary outcomes
Study Arms (2)
GW-1000-02
EXPERIMENTALActive treatment
Placebo
PLACEBO COMPARATORControl
Interventions
Containing THC (27 mg/ml):CBD (25 mg/ml), in ethanol:propylene glycol (50:50) excipients, with peppermint oil (0.05%) flavouring. The maximum permitted dose of study medication was eight actuations (22 mg THC and 20 mg CBD) in any three hour period, and 48 actuations (130 mg THC and 120 mg CBD) in any 24 hour period.
Eligibility Criteria
You may qualify if:
- Aged at least 18 years.
- Multiple Sclerosis of any type.
- Stable Multiple Sclerosis symptomatology during the four weeks before study entry.
- Symptoms of the required severity (\>50 mm on a 100 mm Visual Analogue Scale severity scale) in least one of the specified impairment categories; spasticity, muscle spasms, disturbed bladder control, neuropathic pain, limb tremor.
- A stable medication regime during the four weeks before study entry.
- Willing to abstain from cannabis or cannabinoids for at least seven days before study entry, and during the study.
- Agreed either to use effective contraception during the study and for three months thereafter, or had been surgically sterilised or, if female, were post-menopausal.
- Clinically acceptable laboratory results for pre-study screening.
- Willing and able to undertake and comply with all study requirements.
- Willing and able to read, consider and understand the subject information and consent form and give written informed consent. Subjects unable to read or to sign the document procedures were treated as detailed in the Declaration of Helsinki.
- Willing for their general practitioner, and consultant if appropriate, to be informed of study participation.
- Willing for their name to be notified to Home Office for participation in the study.
You may not qualify if:
- Known or strongly suspected to be abusing drugs, including alcohol.
- Not prepared to abstain from cannabis or cannabinoids during the study.
- Current or past addiction to cannabis.
- Known or suspected to have had an adverse reaction to cannabinoids causing psychosis or other severe psychiatric illness.
- History of any type of schizophrenia, any other psychotic illness, or other significant psychiatric illness or personality disorder other than depression associated with chronic illness.
- Received any drug containing levodopa (Sinemet®, Sinemet plus®, Levodopa®, L-dopa®, Madopar®, Benserazide®).
- Serious cardiovascular disorder including angina, uncontrolled hypertension, or an uncontrolled symptomatic cardiac arrhythmia.
- Significant renal or hepatic impairment as shown in medical history or indicated by laboratory results.
- History of epilepsy.
- Terminal illness or other condition in which placebo medication would be inappropriate.
- Pregnant, lactating or at risk of pregnancy.
- Participated in any other clinical research study during the 12 weeks before study entry.
- Planned hospital admission between study entry and Visit 6.
- Planned travel outside the UK between study entry and Visit 6.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Rivermead Rehabilitation Centre
Oxford, OX3 7LD, United Kingdom
Related Publications (1)
Wade DT, Makela P, Robson P, House H, Bateman C. Do cannabis-based medicinal extracts have general or specific effects on symptoms in multiple sclerosis? A double-blind, randomized, placebo-controlled study on 160 patients. Mult Scler. 2004 Aug;10(4):434-41. doi: 10.1191/1352458504ms1082oa.
PMID: 15327042RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Mr Richard Potts, Clinical Operations Director
- Organization
- GW Pharma Ltd.
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 31, 2012
First Posted
June 4, 2012
Study Start
May 1, 2001
Primary Completion
July 1, 2002
Study Completion
July 1, 2002
Last Updated
January 12, 2023
Results First Posted
September 19, 2012
Record last verified: 2022-12