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SpasticityPhase 3NCT00702468

Evaluate the Maintenance of Effect After Long-term Treatment With Sativex® in Subjects With Symptoms of Spasticity Due to Multiple Sclerosis

A Phase 3 study testing Sativex in people with Spasticity and Multiple Sclerosis, 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

The purpose of this study is to evaluate the maintenance of effect after long-term treatment with Sativex® in subjects with symptoms of spasticity due to Multiple Sclerosis (MS) who have been receiving long-term benefit from treatment with Sativex®. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Spasticity, Multiple Sclerosis
What is being tested?
Sativex
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
36 participants
Where
1 siteUnited Kingdom
Study dates
Nov 2007to Jan 2009
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

  • Willing and able to give written informed consent for participation in the study.
  • Male or female, aged 18 years or above.
  • Subject is able (in the investigator's opinion) and willing to comply with all study requirements.
  • Diagnosed with MS.
  • Received Sativex for the relief of spasticity for at least 12 weeks prior to screening and willing to stop dosing with their own supply for the duration of the study.
  • Judged to have been receiving benefit from and shown tolerability to Sativex, in the investigators' and subjects' opinion.
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  • Takes a minimum dose of Sativex of two sprays per day.
  • If receiving disease-modifying medications, these must have been at a stable dose for at least three months prior to screening, and willing to maintain this for the duration of the study.
  • Has had a stable regimen for at least 30 days prior to study entry, for all medications and non-pharmacological therapies that may have an affect on spasticity; and willing to maintain this for the duration of the study (N.B. This should be three months prior to study entry, in the case of Interferon therapy).
  • Willing to allow his or her general practitioner and consultant, if appropriate, to be notified of participation in the study.
  • Willing for his or her name to be notified to the responsible authorities for participation in this study

Who cannot join

  • Has any concomitant disease or disorder that has symptoms of spasticity or that may influence the subject's level of spasticity.
  • Unable to rate their level of spasticity or distinguish it from other MS symptoms.
  • Currently receiving a prohibited medication (Botulinum Toxin, or Acomplia (Rimonabant), and unwilling to stop or comply for the duration of the study or had received said medication/ therapy within three months prior to the screening visit.
  • Unwilling to stop their own Sativex treatment for the duration of the study.
  • Any known or suspected immediate family history of schizophrenia, other psychotic illness, severe personality disorder or other significant psychiatric disorder other than depression associated with their underlying condition.
  • Has evidence of cardiomyopathy.
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  • Has experienced myocardial infarction or clinically relevant cardiac dysfunction within the last 12 months or has a cardiac disorder that, in the opinion of the investigator would put the subject at risk of a clinically relevant arrhythmia or myocardial infarction.
  • Has a QT interval of > 450 ms (males) or > 470 ms (females) at Visit 1.
  • Has a secondary or tertiary atrioventricular (AV) block or sinus bradycardia (HR <50bpm unless physiological) or sinus tachycardia (HR>110bpm) at Visit 1.
  • Has a diastolic blood pressure of <50 mmHg or >105 mmHg (when measured in a sitting position at rest for five minutes) prior to randomisation
  • Has impaired renal function e.g. creatinine clearance is lower than 50ml/min at Visit 1 and is indicative of renal impairment.
  • Has significantly impaired hepatic function, at Visit 1, in the investigator's opinion.
  • Female subjects of child bearing potential and male subjects whose partner is of child bearing potential, unless willing to ensure that they or their partner use effective contraception during the study and for three months thereafter.
  • Female subject who is pregnant, lactating or planning pregnancy during the course of the study and for three months thereafter.
  • Subjects who have received any IMP within the 12 weeks before Visit 1.
  • Any other significant disease or disorder which, in the opinion of the investigator, may either put the subject at risk because of participation in the study, may influence the result of the study, or the subject's ability to participate in the study.
  • Following a physical examination, the subject has any abnormalities that, in the opinion of the investigator, would prevent them from safely participating in the study.
  • Travel outside the UK planned during the study.
  • Unwilling to abstain from donation of blood during the study.
  • Subjects previously randomised into this study.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • James Paget University Hospital NHS Foundation Trust

    Gorleston-on-Sea, Norfolk, NR31 6LA

Other trials in United Kingdom

About this study

Official title: A Placebo Controlled, Parallel Group, Randomised Withdrawal Study of Subjects With Symptoms of Spasticity Due to Multiple Sclerosis Who Are Receiving Long-term Sativex®.

The purpose of this study is to evaluate the maintenance of effect after long-term treatment with Sativex® in subjects with symptoms of spasticity due to Multiple Sclerosis (MS) who have been receiving long-term benefit from treatment with Sativex®.

Read the detailed description

This five week (one week baseline and four weeks randomised treatment period), multi-centre, placebo controlled, parallel group, randomized withdrawal study will evaluate the maintenance of effect after long-term treatment with Sativex® in subjects with symptoms of spasticity due to MS who have been receiving long-term benefit from treatment with Sativex®. Subjects will be selected from the Supply of Unlicensed Sativex® (SUS) or named patient supply programmes and must have been receiving Sativex® for at least 12 weeks prior to study entry. Following informed consent and screening, eligible subjects will enter the study (Visit 1, Day 1) and commence a seven day open label baseline period, before returning for a randomisation visit (Visit 2, Day 7), at which point they are randomised to receive either Sativex® or placebo (randomised withdrawal period). Subjects will return to the centre for an end of study visit at week five (Visit 3, Day 35) or earlier if they withdraw from treatment. Spasticity and sleep disruption review and dosing diaries will be completed each day from the start of the baseline period until completion or withdrawal.

Being tested
Sativex, Placebo
Keywords
Spasticity, Multiple Sclerosis
Medical subject headings
Muscle Spasticity, Multiple Sclerosis

What participants receive

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

  • SativexDrug

    Also called GW-1000-02

    containing delta-9-tetrahydrocannabinol (THC)(27 mg/ml):cannabidiol (CBD)(25 mg/ml), in ethanol:propylene glycol (50:50) excipients, with peppermint oil (0.05%) flavouring. Dose: 100 µl oromucosal spray, as required for symptom relief

  • PlaceboDrug

    Contains no active drug and is delivered in 100 microlitre actuations by a pump action oromucosal spray

Study groups in NCT00702468
Study groupRoleWhat they receive
SativexExperimentalSativex
Receives: Drug: Sativex
PlaceboPlacebo comparatorPlacebo
Receives: Drug: Placebo

What is being measured

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

  1. Number of Subjects Who Experience Treatment Failure.

    The time to treatment failure was calculated as the number of days from the first day of treatment up to the day of treatment failure. The day of treatment failure was the earliest of:the day of premature cessation of study medication;the first day of the longest period, ending on the last day of treatment, where the mean spasticity NRS had increased by at least 20% and at least 1 unit from the treatment baseline; the day of a clinically relevant increase in anti-spasticity or disease modifying medication. The number of subjects who failed treatment were calculated.

    Measured: Week 1- Week 5

Secondary outcomes (8)
  1. Change in Mean Daily Spasticity Severity as Measured on a Spasticity Severity 0-10 Numerical Rating Scale (NRS).

    Spasticity NRS was completed daily by answering the following question:

    "On a scale of '0 to 10' please indicate the average level of your spasticity over the last 24 hours" with the anchors: 0 = 'no spasticity' and 10 = 'worst possible spasticity'. The change in mean spasticity severity NRS from baseline to end of study (last seven days)was calculated. A negative change from baseline indicates an improvement in spasticity.

    Measured: Baseline (Week 1) to Week 5

  2. Change in Modified Ashworth Scale.

    The Modified Ashworth Scale was completed at baseline and at the end of treatment at approximately the same time of day. All 20 muscle groups were assessed for spasticity (using a 0=no increase in muscle tone to 4 scale=affected part rigid in flexion or extensions), to result in a total score out of 80. The higher the score the worse the spasticity is.

    The change from baseline to end of study was assessed. The higher the score the better

    Measured: Day 7 to Day 28

  3. Change in Motricity Index

    The Motricity Index involves assessing three movements in both the arms and the legs. In the arm the three movements are; pinch grip, elbow flexion and shoulder abduction and the three leg movements are, ankle dorsiflexion, knee extension and hip flexion. The total arm/leg score is then the addition of the score for the three arm/leg movements. One point is then added to each limb score so that the maximum score is 100 points. The higher the score the better the limb movement.

    Measured: Week 2 and Week 5

  4. Timed 10-metre Walk.

    The time taken to travel 10 metres.

    Measured: Week 2 and Week 5

  5. Daily Sleep Disruption NRS

    Subjects will be asked: "On a scale of 0-10 please indicate how your spasticity disrupted your sleep last night" with the anchors 0 = 'did not disrupt sleep', 10 = 'completely disrupted (unable to sleep at all)'.

    Measured: Week 1- Week 5

  6. Subject Global Impressions of Change.

    At baseline subjects will write a brief description of their spasticity caused by MS and how it affects them emotionally, physically and their ability to function with day to day activities. This will be used to aid their memory before they answer the following question which is rated on a seven-point scale.

    "Please assess the change in your spasticity due to MS since immediately before receiving the first course of study treatment (Baseline) using the scale below" The markers are: Very much worse, Much worse, Minimally worse, No change, Minimally better, Much better, Very much better.

    Measured: Day 35

  7. Carer Global Impressions of Change for Functional Ability

    The main carer will be asked to assess the change in the subject's condition at the end of the study (completion or withdrawal). It consists of 2 question which is rated on a seven-point scale: Very much worse, Much worse, Minimally worse, No change, Minimally better, Much better, Very much better. The carer will be asked since visit 2 (baseline):

    "How has the subject's general functional abilities changed?" "How has the subject's ease of transfer?" Not all subjects had carers; a total of 18 subjects from each treatment, of which 10 from Sativex and 14 from placebo completed it.

    Measured: Day 35

  8. Carer Global Impressions of Change for Ease of Transfer

    The main carer will be asked to assess the change in the subject's condition at the end of the study (completion or withdrawal). It consists of 2 question which is rated on a seven-point scale: Very much worse, Much worse, Minimally worse, No change, Minimally better, Much better, Very much better. The carer will be asked since visit 2 (baseline):

    "How has the subject's general functional abilities changed?" "How has the subject's ease of transfer?" Not all subjects had carers; a total of 18 subjects from each treatment, of which 10 from Sativex and 14 from placebo completed it.

    Measured: Day 35

Timeline

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

  1. First posted20 Jun 2008 (estimated)
  2. Study startNov 2007
  3. Primary completionJan 2009
  4. Study completionJan 2009

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
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00702468
Sponsor's protocol ID
GWSP0702
Status last verified
Apr 2023
First submitted
19 Jun 2008
Last updated
6 May 2023
Data monitoring committee
No

Publications

  • Notcutt W, Langford R, Davies P, Ratcliffe S, Potts R. A placebo-controlled, parallel-group, randomized withdrawal study of subjects with symptoms of spasticity due to multiple sclerosis who are receiving long-term Sativex(R) (nabiximols). Mult Scler. 2012 Feb;18(2):219-28. doi: 10.1177/1352458511419700. Epub 2011 Aug 30.

    PubMed 21878454
  • Di Marzo V, Centonze D. Placebo effects in a multiple sclerosis spasticity enriched clinical trial with the oromucosal cannabinoid spray (THC/CBD): dimension and possible causes. CNS Neurosci Ther. 2015 Mar;21(3):215-21. doi: 10.1111/cns.12358. Epub 2014 Dec 4.

    PubMed 25475413

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Sativex in people with Spasticity and Multiple Sclerosis, 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 11 inclusion and 20 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 6 May 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. Some participants in this study may receive a placebo. 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 Jun 2011). 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?

Number of Subjects Who Experience Treatment Failure. (time frame: Week 1- Week 5). 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 NCT00702468, which also lists 2 linked publications.

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 6 May 2023.

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