Trial record 16 of 1198 for:    multiple sclerosis.

A Study of the Long-term Safety of Sativex Use

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
GW Pharmaceuticals Ltd.
ClinicalTrials.gov Identifier:
NCT01606137
First received: May 21, 2012
Last updated: June 13, 2013
Last verified: June 2013
  Purpose

Subjects who had previously received GW-1000-02 in a GW study who opted to continue using it in the long-term were monitored for ongoing tolerability and evidence of clinical benefit.


Condition Intervention Phase
Multiple Sclerosis
Spasticity
Pain
Drug: GW-1000-02
Phase 3

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Long-term, Open Label, Safety and Tolerability Study of Cannabis Based Medicine Extract in Patients Who Have Participated in a GW Clinical Study Using Cannabis Based Medicine.

Resource links provided by NLM:


Further study details as provided by GW Pharmaceuticals Ltd.:

Primary Outcome Measures:
  • Incidence of Adverse Events as a Measure of Subject Safety. [ Time Frame: Up to 1051 days ] [ Designated as safety issue: Yes ]
    Following data entry, all adverse events were medically encoded using the Medical Dictionary for Regulatory Activities (MedDRA) 6.0. All subjects who experienced an adverse event during the treatment period is presented.


Secondary Outcome Measures:
  • Change From Parent Study Baseline in Spasticity 0-10 Numerical Rating Scale Score After 52 Weeks of Treatment. [ Time Frame: 0 - 52 weeks ] [ Designated as safety issue: No ]
    Subjects were asked to rate the severity of their primary symptom each week in the diary using an 11-point Numerical Rating Scale, where zero = "best possible" and 10 = "worst possible". A negative value indicates an improvement in score from baseline.

  • Change From Parent Study Baseline in Central Neuropathic Pain 0-10 Numerical Rating Scale Score at 52 Weeks of Treatment. [ Time Frame: 0 - 52 weeks. ] [ Designated as safety issue: No ]
    Subjects were asked to rate the severity of their primary symptom each week in the diary using an 11-point Numerical Rating Scale, where zero = "best possible" and 10 = "worst possible". A negative value indicates an improvement in score from baseline.

  • Change From Parent Study Baseline in Neuropathic Pain 0-10 Numerical Rating Scale Score at 52 Weeks of Treatment in Multiple Sclerosis Subjects. [ Time Frame: 0 - 52 weeks. ] [ Designated as safety issue: No ]
    Subjects were asked to rate the severity of their primary symptom each week in the diary using an 11-point Numerical Rating Scale, where zero = "best possible" and 10 = "worst possible". A negative value indicates an improvement in score from baseline.

  • Change From Parent Study Baseline in Pain 0-10 Numerical Rating Scale Score at 52 Weeks of Treatment. [ Time Frame: 0 - 52 weeks. ] [ Designated as safety issue: No ]
    Subjects were asked to rate the severity of their primary symptom each week in the diary using an 11-point Numerical Rating Scale, where zero = "best possible" and 10 = "worst possible". A negative value indicates an improvement in score from baseline.

  • Subject Assessment of Benefit at the Last Study Visit in Those Experiencing Neuropathic Pain Due to Multiple Sclerosis. [ Time Frame: Up to 1051 days ] [ Designated as safety issue: No ]
    Assessment of benefit achieved at study completion/withdrawal was evaluated by the subject, and the number of subjects who perceived a benefit from treatment is presented.

  • Investigator Assessment of Benefit at the Last Study Visit in Those Experiencing Neuropathic Pain Due to Multiple Sclerosis. [ Time Frame: Up to 1051 days ] [ Designated as safety issue: No ]
    Assessment of benefit achieved at study completion/withdrawal was evaluated by the investigator, and the number of subjects that investigators considered to have experienced a benefit from the treatment is presented.

  • Subject Assessment of Benefit at the Last Study Visit in Those Experiencing Central Neuropathic Pain. [ Time Frame: Up to 1051 days ] [ Designated as safety issue: No ]
    Assessment of benefit achieved at study completion/withdrawal was evaluated by the subject, and the number of subjects who perceived a benefit from treatment is presented.

  • Investigator Assessment of Benefit at the Last Study Visit in Those Experiencing Central Neuropathic Pain. [ Time Frame: Up to 1051days ] [ Designated as safety issue: No ]
    Assessment of benefit achieved at study completion/withdrawal was evaluated by the investigator, and the number of subjects that investigators considered to have experienced a benefit from the treatment is presented.

  • Subject Assessment of Benefit at the Last Study Visit in Those Experiencing Pain. [ Time Frame: Up to 1051 ] [ Designated as safety issue: No ]
    Assessment of benefit achieved at study completion/withdrawal was evaluated by the subject, and the number of subjects who perceived a benefit from treatment is presented.

  • Investigator Assessment of Benefit at the Last Study Visit in Those Experiencing Pain. [ Time Frame: Up to 1051 days ] [ Designated as safety issue: No ]
    Assessment of benefit achieved at study completion/withdrawal was evaluated by the investigator, and the number of subjects that investigators considered to have experienced a benefit from the treatment is presented.

  • Subject Assessment of Benefit at the Last Study Visit in All Multiple Sclerosis Subjects. [ Time Frame: Up to 1051 days ] [ Designated as safety issue: No ]
    Assessment of benefit achieved at study completion/withdrawal was evaluated by the subject, and the number of subjects who perceived a benefit from treatment is presented.

  • Investigator Assessment of Benefit at the Last Study Visit in All Multiple Sclerosis Subjects. [ Time Frame: Up to 1051 days. ] [ Designated as safety issue: No ]
    Assessment of benefit achieved at study completion/withdrawal was evaluated by the investigator, and the number of subjects that investigators considered to have experienced a benefit from the treatment is presented.

  • Investigator Global Assessment at the Last Study Visit in Subjects With Neuropathic Pain Due to Multiple Sclerosis. [ Time Frame: Up to 1051 days ] [ Designated as safety issue: No ]
    Investigators rated the global severity of the subject's underlying primary condition, e.g. their MS or spinal cord injury, since the previous visit using a five point scale of "much worse", "worse", "no change", "better", "much better". The number of subjects rated by the investigator as "better" or "much better" at the last study visit is presented.

  • Investigator Global Assessment at the Last Study Visit in Subjects With Central Neuropathic Pain. [ Time Frame: Up to 1051 days. ] [ Designated as safety issue: No ]
    Investigators rated the global severity of the subject's underlying primary condition, e.g. their MS or spinal cord injury, since the previous visit using a five point scale of "much worse", "worse", "no change", "better", "much better". The number of subjects rated by the investigator as "better" or "much better" at the last study visit is presented.

  • Investigator Global Assessment at the Last Study Visit in Subjects With Pain. [ Time Frame: Up to 1051 days. ] [ Designated as safety issue: No ]
    Investigators rated the global severity of the subject's underlying primary condition, e.g. their MS or spinal cord injury, since the previous visit using a five point scale of "much worse", "worse", "no change", "better", "much better". The number of subjects rated by the investigator as "better" or "much better" at the last study visit is presented.

  • Investigator Global Assessment at the Last Study Visit in Subjects With Multiple Sclerosis. [ Time Frame: Up to 1051 days. ] [ Designated as safety issue: No ]
    Investigators rated the global severity of the subject's underlying primary condition, e.g. their MS or spinal cord injury, since the previous visit using a five point scale of "much worse", "worse", "no change", "better", "much better". The number of subjects rated by the investigator as "better" or "much better" at the last study visit is presented.


Enrollment: 507
Study Start Date: February 2002
Study Completion Date: December 2004
Primary Completion Date: December 2004 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: GW-1000-02
Active treatment
Drug: GW-1000-02
Contained delta-9-tetrahydrocannabinol (THC) (27 mg/ml) and cannabidiol (CBD) (25 mg/ml) as extract of Cannabis sativa L., with peppermint oil, 0.05% (v/v), in ethanol:propylene glycol (50:50) excipient. Each 100 μl actuation of the pump action spray delivered 2.7 mg THC and 2.5 mg CBD. A maximum daily exposure of 130 mg THC was specified by the UK regulatory authority authorisation.
Other Name: Sativex

Detailed Description:

Subjects who had previously participated in a placebo controlled GW clinical study were screened and if eligible began dosing with GW-1000-02. Subjects were reviewed for tolerability and evidence of clinical benefit at weeks two and four and then every eight weeks. Subjects self-titrated to symptom resolution or maximum tolerated/allowable dose of 130 mg THC and 120 mg CBD.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Willing and able to give informed consent.
  • Male or female aged 18 years or above.
  • Diagnosed with a condition categorised as one of the following: multiple sclerosis, spinal cord conditions, peripheral nerve injury or central nervous system damage associated with vascular, traumatic, infective, genetic or metabolic disease and whose symptom(s) were not wholly relieved by currently available therapy, prior to the previous study of GW-1000-02 or placebo.
  • Had participated in a GW clinical study using GW-1000-02 within the previous month.
  • Had shown tolerability to the study medication during the previous GW study.
  • Was expected, by the investigator, to gain clinical benefit from receiving long-term GW-1000-02.
  • Were willing, if female and of child bearing potential or male subjects with a partner of child bearing potential, to ensure that effective contraception was used during the study and for three months thereafter.
  • Had not used cannabinoids (cannabis, Marinol or Nabilone) for at least seven days before Visit 1 (the exception being GW-1000-02 given as study medication) and were willing to abstain from any use of cannabis during the study.
  • Recent (within seven days) haematology and blood chemistry that was normal or considered clinically acceptable in view of the subjects underlying condition.
  • Able (in the investigators opinion) and willing to comply with all study requirements.
  • Willing for the Home Office to be notified of his or her participation in the study.
  • Willing to allow his or her general practitioner and consultant, if appropriate, to be notified of participation in the study.

Exclusion Criteria:

  • History of serious psychiatric illness, including schizophrenia, other psychotic illness or severe personality disorder other than depression associated with the underlying condition.
  • Known or strongly suspected of alcohol or substance abuse or considered by the investigator to have been at risk of alcohol or substance abuse.
  • Severe cardiovascular disorder, such as ischaemic heart disease, arrhythmias (other than well controlled atrial fibrillation), poorly controlled hypertension or severe heart failure.
  • History of epilepsy or convulsions.
  • Significant renal or hepatic impairment.
  • Terminally ill.
  • Any other significant disease or disorder which, in the opinion of the investigator, may have either put the subject at risk because of participation in the study, or may have influenced the result of the study, or the subject's ability to participate in the study.
  • Female subjects who were pregnant, lactating or planning pregnancy during the course of the study.
  • Regular levodopa (Sinemet, Sinemet Plus, Levodopa, L-dopa, Madopar, Benserazide) therapy within seven days of study entry.
  • Known or suspected hypersensitivity to cannabinoids or any of the excipients of the study medication.
  • Known or suspected adverse reaction to cannabinoids.
  • Donation of blood during the study.
  • Previous participation in this study.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01606137

Locations
United Kingdom
Gartnavel General Hospital
Glasgow, United Kingdom, G12 0YN
Sponsors and Collaborators
GW Pharmaceuticals Ltd.
Investigators
Principal Investigator: Michael Serpell, ChB FRCA Gartnavel General Hospital
  More Information

Publications:
Responsible Party: GW Pharmaceuticals Ltd.
ClinicalTrials.gov Identifier: NCT01606137     History of Changes
Other Study ID Numbers: GWEXT0102
Study First Received: May 21, 2012
Results First Received: July 19, 2012
Last Updated: June 13, 2013
Health Authority: United Kingdom: Medicines and Healthcare Products Regulatory Agency

Additional relevant MeSH terms:
Multiple Sclerosis
Sclerosis
Muscle Spasticity
Demyelinating Autoimmune Diseases, CNS
Autoimmune Diseases of the Nervous System
Nervous System Diseases
Demyelinating Diseases
Autoimmune Diseases
Immune System Diseases
Muscular Diseases
Musculoskeletal Diseases
Muscle Hypertonia
Neuromuscular Manifestations
Neurologic Manifestations
Signs and Symptoms
Pathologic Processes

ClinicalTrials.gov processed this record on April 23, 2014