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Multiple SclerosisPhase 3NCT01610687

A Long-term Safety Extension Study of Delta-9-tetrahydrocannabinol (THC) and Cannabidiol (CBD) in Multiple Sclerosis

A Phase 3 study testing GW-1000-02 in people with Multiple Sclerosis and Spasticity, run by Jazz Pharmaceuticals at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

An extension study to evaluate the long-term safety, tolerability and efficacy of GW-1000-02 treatment in multiple sclerosis. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Multiple Sclerosis, Spasticity
What is being tested?
GW-1000-02
Could I receive a placebo?
No, everyone receives an active treatment
How many people
137 participants
Where
1 siteUnited Kingdom
Study dates
Jul 2001to Feb 2005
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.
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  • 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.

Who cannot join

  • 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®).
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  • 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.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Rivermead Rehabilitation Centre

    Oxford, OX3 7LD

Other trials in United Kingdom

About this study

Official title: A 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

An extension study to evaluate the long-term safety, tolerability and efficacy of GW-1000-02 treatment in multiple sclerosis.

Read the detailed description

Patients who participated in the placebo controlled phase of this study and opted to continue receiving open label GW-1000-02 entered the follow-on extension of the study and completed symptom assessments to determine whether they were continuing to receive clinical benefit from GW-1000-02.

Being tested
GW-1000-02
Medical subject headings
Multiple Sclerosis, Muscle Spasticity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • GW-1000-02Drug

    Also called Sativex

    Contained THC and CBD as extract of Cannabis sativa L. Each 100 μl actuation delivered a dose containing 2.7 mg THC and 2.5mg CBD. The maximum permitted dose 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.

Study groups in NCT01610687
Study groupRoleWhat they receive
GW-1000-02ExperimentalActive treatment
Receives: Drug: GW-1000-02

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of Adverse Events as a Measure of Patient Safety

    The number of patients who experienced an adverse event during the course of this extension study is presented

    Measured: up to1206 days

Secondary outcomes (7)
  1. Mean Number of Sprays of Study Medication Taken During the Last 6 Days of Treatment

    A categorical summary was produced of the mean number of sprays per day during the last six days of treatment, and the mean number of sprays was rounded to the nearest whole number for categorisation.

    Measured: up to 1206 days

  2. Change From Baseline in Mean Intoxication 100 mm Visual Analogue Scale Scores at Week 18.

    Intoxication levels were recorded on a Visual Analogue Scale, where 0 equals 'no intoxication' and 10 equals 'extreme intoxication'. A decrease in score indicates an improvement in intoxication levels.

    Measured: 18 weeks

  3. Investigator Assessed Global Severity Score at Week 18

    The investigator rated the global severity of the subject's primary condition since entry into the study using a five-point verbal rating scale-5: 1=much worse, 2=worse, 3=no change, 4=better, 5=much better. The number of patients which were considered better or much better (scores 4 and 5) at week 18 of the study better is presented.

    Measured: week 18

  4. Change From Baseline in the Mean Pain 100 mm Visual Analogue Scale Score at Week 18

    A clinical assessment of pain was made at each study visit using a 100 mm Visual Analogue Scale, where 0 = no pain and 100 = worst possible pain. A decrease in score indicates an improvement.

    Measured: week 18

  5. Change From Baseline in the Mean Spasticity 100 mm Visual Analogue Scale Score at Week 18

    A clinical assessment of spasticity was made at each study visit using a 100 mm Visual Analogue Scale, where 0 = no spasticity and 100 = worst possible spasticity. A decrease in score indicates an improvement.

    Measured: week 18

  6. Change From Baseline in the Mean Tremor 100 mm Visual Analogue Scale Score at Week 18

    A clinical assessment of tremor was made at each study visit using a 100 mm Visual Analogue Scale, where 0 = no tremor and 100 = worst possible tremor. A decrease in score indicates an improvement.

    Measured: week 18

  7. Change From Baseline in the Mean Bladder Problems 100 mm Visual Analogue Scale Score at Week 18

    A clinical assessment of bladder problems was made at each study visit using a 100 mm Visual Analogue Scale, where 0 = no bladder problems and 100 = worst possible bladder problems. A decrease in score indicates an improvement.

    Measured: 18 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Jun 2012 (estimated)
  2. Study startJul 2001
  3. Primary completionFeb 2005
  4. Study completionFeb 2005

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
137 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01610687
Sponsor's protocol ID
GWMS0001 EXT
Status last verified
Dec 2022
First submitted
31 May 2012
Last updated
10 Jan 2023
Data monitoring committee
No

Publications

  • Wade DT, Makela PM, House H, Bateman C, Robson P. Long-term use of a cannabis-based medicine in the treatment of spasticity and other symptoms in multiple sclerosis. Mult Scler. 2006 Oct;12(5):639-45. doi: 10.1177/1352458505070618.

    PubMed 17086911

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing GW-1000-02 in people with Multiple Sclerosis and Spasticity, run by Jazz Pharmaceuticals at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 10 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 17 Aug 2012). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of Adverse Events as a Measure of Patient Safety (time frame: up to1206 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01610687, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jan 2023.

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