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The Cannabinoid Use in Progressive Inflammatory brain Disease (CUPID) trial: a randomised double-blind placebo-controlled parallel-group multicentre trial and economic evaluation of cannabinoids to slow progression in multiple sclerosis.
Health Technol Assess 2015; 19(12):vii-viii, xxv-xxxi, 1-187HT

Abstract

BACKGROUND

The Cannabinoid Use in Progressive Inflammatory brain Disease (CUPID) trial aimed to determine whether or not oral Δ(9)-tetrahydrocannabinol (Δ(9)-THC) slowed the course of progressive multiple sclerosis (MS); evaluate safety of cannabinoid administration; and, improve methods for testing treatments in progressive MS.

OBJECTIVES

There were three objectives in the CUPID study: (1) to evaluate whether or not Δ(9)-THC could slow the course of progressive MS; (2) to assess the long-term safety of Δ(9)-THC; and (3) to explore newer ways of conducting clinical trials in progressive MS.

DESIGN

The CUPID trial was a randomised, double-blind, placebo-controlled, parallel-group, multicentre trial. Patients were randomised in a 2 : 1 ratio to Δ(9)-THC or placebo. Randomisation was balanced according to Expanded Disability Status Scale (EDSS) score, study site and disease type. Analyses were by intention to treat, following a pre-specified statistical analysis plan. A cranial magnetic resonance imaging (MRI) substudy, Rasch measurement theory (RMT) analyses and an economic evaluation were undertaken.

SETTING

Twenty-seven UK sites.

PARTICIPANTS

Adults aged 18-65 years with primary or secondary progressive MS, 1-year evidence of disease progression and baseline EDSS 4.0-6.5.

INTERVENTIONS

Oral Δ(9)-THC (maximum 28 mg/day) or matching placebo.

ASSESSMENT VISITS

Three and 6 months, and then 6-monthly up to 36 or 42 months.

MAIN OUTCOME MEASURES

Primary outcomes were time to EDSS progression, and change in Multiple Sclerosis Impact Scale-29 version 2 (MSIS-29v2) 20-point physical subscale (MSIS-29phys) score. Various secondary patient- and clinician-reported outcomes and MRI outcomes were assessed. RMT analyses examined performance of MS-specific rating scales as measurement instruments and tested for a symptomatic or disease-modifying treatment effect. Economic evaluation estimated mean incremental costs and quality-adjusted life-years (QALYs).

RESULTS

Effectiveness - recruitment targets were achieved. Of the 498 randomised patients (332 to active and 166 to placebo), 493 (329 active and 164 placebo) were analysed.

PRIMARY OUTCOMES

no significant treatment effect; hazard ratio EDSS score progression (active : placebo) 0.92 [95% confidence interval (CI) 0.68 to 1.23]; and estimated between-group difference in MSIS-29phys score (active-placebo) -0.9 points (95% CI -2.0 to 0.2 points). Secondary clinical and MRI outcomes: no significant treatment effects. Safety - at least one serious adverse event: 35% and 28% of active and placebo patients, respectively. RMT analyses - scale evaluation: MSIS-29 version 2, MS Walking Scale-12 version 2 and MS Spasticity Scale-88 were robust measurement instruments. There was no clear symptomatic or disease-modifying treatment effect. Economic evaluation - estimated mean incremental cost to NHS over usual care, over 3 years £27,443.20 per patient. No between-group difference in QALYs.

CONCLUSIONS

The CUPID trial failed to demonstrate a significant treatment effect in primary or secondary outcomes. There were no major safety concerns, but unwanted side effects seemed to affect compliance. Participants were more disabled than in previous studies and deteriorated less than expected, possibly reducing our ability to detect treatment effects. RMT analyses supported performance of MS-specific rating scales as measures, enabled group- and individual person-level examination of treatment effects, but did not influence study inferences. The intervention had significant additional costs with no improvement in health outcomes; therefore, it was dominated by usual care and not cost-effective. Future work should focus on determining further factors to predict clinical deterioration, to inform the development of new studies, and modifying treatments in order to minimise side effects and improve study compliance. The absence of disease-modifying treatments in progressive MS warrants further studies of the cannabinoid pathway in potential neuroprotection.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN62942668.

FUNDING

The National Institute for Health Research Health Technology Assessment programme, the Medical Research Council Efficacy and Mechanism Evaluation programme, Multiple Sclerosis Society and Multiple Sclerosis Trust. The report will be published in full in Health Technology Assessment; Vol. 19, No. 12. See the NIHR Journals Library website for further project information.

Authors+Show Affiliations

Centre for Biostatistics, Bioinformatics and Biomarkers, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, UK.Peninsula Clinical Trials Unit, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, UK.Peninsula Clinical Trials Unit, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, UK.Centre for Biostatistics, Bioinformatics and Biomarkers, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, UK.Health Economics Group, University of Exeter Medical School, Exeter, UK.Health Economics Group, University of Exeter Medical School, Exeter, UK.Medical Research Council Clinical Trials Unit, London, UK.Centre for Biostatistics, Bioinformatics and Biomarkers, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, UK.University College London's Institute of Neurology, London, UK.University College London's Institute of Neurology, London, UK.University College London's Institute of Neurology, London, UK.Peninsula Clinical Trials Unit, Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, UK.

Pub Type(s)

Journal Article
Multicenter Study
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25676540

Citation

Ball, Susan, et al. "The Cannabinoid Use in Progressive Inflammatory Brain Disease (CUPID) Trial: a Randomised Double-blind Placebo-controlled Parallel-group Multicentre Trial and Economic Evaluation of Cannabinoids to Slow Progression in Multiple Sclerosis." Health Technology Assessment (Winchester, England), vol. 19, no. 12, 2015, pp. vii-viii, xxv-xxxi, 1-187.
Ball S, Vickery J, Hobart J, et al. The Cannabinoid Use in Progressive Inflammatory brain Disease (CUPID) trial: a randomised double-blind placebo-controlled parallel-group multicentre trial and economic evaluation of cannabinoids to slow progression in multiple sclerosis. Health Technol Assess. 2015;19(12):vii-viii, xxv-xxxi, 1-187.
Ball, S., Vickery, J., Hobart, J., Wright, D., Green, C., Shearer, J., ... Zajicek, J. (2015). The Cannabinoid Use in Progressive Inflammatory brain Disease (CUPID) trial: a randomised double-blind placebo-controlled parallel-group multicentre trial and economic evaluation of cannabinoids to slow progression in multiple sclerosis. Health Technology Assessment (Winchester, England), 19(12), pp. vii-viii, xxv-xxxi, 1-187. doi:10.3310/hta19120.
Ball S, et al. The Cannabinoid Use in Progressive Inflammatory Brain Disease (CUPID) Trial: a Randomised Double-blind Placebo-controlled Parallel-group Multicentre Trial and Economic Evaluation of Cannabinoids to Slow Progression in Multiple Sclerosis. Health Technol Assess. 2015;19(12):vii-viii, xxv-xxxi, 1-187. PubMed PMID: 25676540.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The Cannabinoid Use in Progressive Inflammatory brain Disease (CUPID) trial: a randomised double-blind placebo-controlled parallel-group multicentre trial and economic evaluation of cannabinoids to slow progression in multiple sclerosis. AU - Ball,Susan, AU - Vickery,Jane, AU - Hobart,Jeremy, AU - Wright,Dave, AU - Green,Colin, AU - Shearer,James, AU - Nunn,Andrew, AU - Cano,Mayam Gomez, AU - MacManus,David, AU - Miller,David, AU - Mallik,Shahrukh, AU - Zajicek,John, PY - 2015/2/14/entrez PY - 2015/2/14/pubmed PY - 2015/12/15/medline SP - vii-viii, xxv-xxxi, 1-187 JF - Health technology assessment (Winchester, England) JO - Health Technol Assess VL - 19 IS - 12 N2 - BACKGROUND: The Cannabinoid Use in Progressive Inflammatory brain Disease (CUPID) trial aimed to determine whether or not oral Δ(9)-tetrahydrocannabinol (Δ(9)-THC) slowed the course of progressive multiple sclerosis (MS); evaluate safety of cannabinoid administration; and, improve methods for testing treatments in progressive MS. OBJECTIVES: There were three objectives in the CUPID study: (1) to evaluate whether or not Δ(9)-THC could slow the course of progressive MS; (2) to assess the long-term safety of Δ(9)-THC; and (3) to explore newer ways of conducting clinical trials in progressive MS. DESIGN: The CUPID trial was a randomised, double-blind, placebo-controlled, parallel-group, multicentre trial. Patients were randomised in a 2 : 1 ratio to Δ(9)-THC or placebo. Randomisation was balanced according to Expanded Disability Status Scale (EDSS) score, study site and disease type. Analyses were by intention to treat, following a pre-specified statistical analysis plan. A cranial magnetic resonance imaging (MRI) substudy, Rasch measurement theory (RMT) analyses and an economic evaluation were undertaken. SETTING: Twenty-seven UK sites. PARTICIPANTS: Adults aged 18-65 years with primary or secondary progressive MS, 1-year evidence of disease progression and baseline EDSS 4.0-6.5. INTERVENTIONS: Oral Δ(9)-THC (maximum 28 mg/day) or matching placebo. ASSESSMENT VISITS: Three and 6 months, and then 6-monthly up to 36 or 42 months. MAIN OUTCOME MEASURES: Primary outcomes were time to EDSS progression, and change in Multiple Sclerosis Impact Scale-29 version 2 (MSIS-29v2) 20-point physical subscale (MSIS-29phys) score. Various secondary patient- and clinician-reported outcomes and MRI outcomes were assessed. RMT analyses examined performance of MS-specific rating scales as measurement instruments and tested for a symptomatic or disease-modifying treatment effect. Economic evaluation estimated mean incremental costs and quality-adjusted life-years (QALYs). RESULTS: Effectiveness - recruitment targets were achieved. Of the 498 randomised patients (332 to active and 166 to placebo), 493 (329 active and 164 placebo) were analysed. PRIMARY OUTCOMES: no significant treatment effect; hazard ratio EDSS score progression (active : placebo) 0.92 [95% confidence interval (CI) 0.68 to 1.23]; and estimated between-group difference in MSIS-29phys score (active-placebo) -0.9 points (95% CI -2.0 to 0.2 points). Secondary clinical and MRI outcomes: no significant treatment effects. Safety - at least one serious adverse event: 35% and 28% of active and placebo patients, respectively. RMT analyses - scale evaluation: MSIS-29 version 2, MS Walking Scale-12 version 2 and MS Spasticity Scale-88 were robust measurement instruments. There was no clear symptomatic or disease-modifying treatment effect. Economic evaluation - estimated mean incremental cost to NHS over usual care, over 3 years £27,443.20 per patient. No between-group difference in QALYs. CONCLUSIONS: The CUPID trial failed to demonstrate a significant treatment effect in primary or secondary outcomes. There were no major safety concerns, but unwanted side effects seemed to affect compliance. Participants were more disabled than in previous studies and deteriorated less than expected, possibly reducing our ability to detect treatment effects. RMT analyses supported performance of MS-specific rating scales as measures, enabled group- and individual person-level examination of treatment effects, but did not influence study inferences. The intervention had significant additional costs with no improvement in health outcomes; therefore, it was dominated by usual care and not cost-effective. Future work should focus on determining further factors to predict clinical deterioration, to inform the development of new studies, and modifying treatments in order to minimise side effects and improve study compliance. The absence of disease-modifying treatments in progressive MS warrants further studies of the cannabinoid pathway in potential neuroprotection. TRIAL REGISTRATION: Current Controlled Trials ISRCTN62942668. FUNDING: The National Institute for Health Research Health Technology Assessment programme, the Medical Research Council Efficacy and Mechanism Evaluation programme, Multiple Sclerosis Society and Multiple Sclerosis Trust. The report will be published in full in Health Technology Assessment; Vol. 19, No. 12. See the NIHR Journals Library website for further project information. SN - 2046-4924 UR - https://www.unboundmedicine.com/medline/citation/25676540/The_Cannabinoid_Use_in_Progressive_Inflammatory_brain_Disease__CUPID__trial:_a_randomised_double_blind_placebo_controlled_parallel_group_multicentre_trial_and_economic_evaluation_of_cannabinoids_to_slow_progression_in_multiple_sclerosis_ L2 - https://doi.org/10.3310/hta19120 DB - PRIME DP - Unbound Medicine ER -