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A Study of Sativex® for Pain Relief in Patients With Advanced Malignancy.

A Double Blind, Randomized, Placebo Controlled, Parallel Group Dose-range Exploration Study of Sativex® in Relieving Pain in Patients With Advanced Cancer, Who Experience Inadequate Analgesia During Optimized Chronic Opioid Therapy.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00530764
Acronym
SPRAY
Enrollment
360
Registered
2007-09-17
Start date
2007-11-30
Completion date
2010-01-31
Last updated
2013-06-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cancer, Pain, Palliative Care

Keywords

Pain, Cancer, Palliative

Brief summary

The purpose of this study is to determine the effective dose range and to demonstrate a non-effective dose range of Sativex in patients with advanced cancer, who experience inadequate pain relief even though they are on optimized chronic opioid therapy.

Interventions

DRUGSativex Low Dose

Range of 1 to 4 sprays per day. Each actuation of oromucosal spray delivers 2.7mg delta-9-tetrahydrocannabinol (THC) and 2.5mg cannabidiol (CBD). Thus maximum daily dose is 10.8mg THC and 10mg CBD.

DRUGSativex Medium Dose

Range of 6 to 10 sprays per day. Each actuation of oromucosal spray delivers 2.7mg delta-9-tetrahydrocannabinol (THC) and 2.5mg cannabidiol (CBD). Thus maximum daily dose is 27mg THC and 25mg CBD.

DRUGSativex High Dose

Range of 11 to 16 sprays per day. Each actuation of oromucosal spray delivers 2.7mg delta-9-tetrahydrocannabinol (THC) and 2.5mg cannabidiol (CBD). Thus maximum daily dose is 43.2mg THC and 40mg CBD.

Sponsors

Quintiles, Inc.
CollaboratorINDUSTRY
GW Pharmaceuticals Ltd
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* The patient has advanced active cancer for which there is no known curative therapy. * The patient is able (in the investigators opinion) and willing to comply with all study requirements. * The patient has a clinical diagnosis of cancer related pain, which is not wholly alleviated with their current opioid treatment. * The patient is receiving a sustained release (SR) fixed dose of opioid therapy (excluding Methadone). N.B. The opiate therapy must be Step III according to the World Health Organization (WHO) analgesic ladder. * The patient is willing to continue to take their regular daily baseline opioid regimen (SR) at the same dose, throughout the duration of study.

Exclusion criteria

* The patient should be excluded from entering study if they have received or are due to receive during the study period; chemotherapy, hormone therapy or radiotherapy, which, in the opinion of the investigator will affect their pain. * Any history or immediate family history of schizophrenia, other psychotic illness, severe personality disorder or other significant psychiatric disorder other than depression associated with their underlying condition. * Any known or suspected history of a diagnosed dependence disorder, current heavy alcohol consumption, current use of an illicit drug or current non prescribed use of any prescription drug. * The patient has poorly controlled epilepsy or recurrent seizures (i.e. at least one year since last seizure). * The patient 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 patient at risk of a clinically relevant arrhythmia or myocardial infarction.

Design outcomes

Primary

MeasureTime frameDescription
Number of Patients With at Least 30% Improvement in Numerical Rating Scale (NRS) Average Pain Score From Baseline5 Weeks: Baseline (first 3 days) - Week 5 (last 3 days)A positive 30% pain response is defined as a reduction of at least 30% in the mean NRS average pain score from baseline to week 5 (last 3 days). The patient was asked on a scale of '0 to 10', please indicate the number that best describes your pain or average pain in the last 24 hours where 0 = no pain and 10 = pain as bad as you can imagine. No pain relates to the time prior to the onset of pain due to cancer. The average pain NRS was completed at the same time each day, i.e. bedtime in the evening.

Secondary

MeasureTime frameDescription
Change in Mean Daily NRS Pain Score (Average Pain).5 Weeks: Baseline (first 3 days) - End of Treatment (last 3 days of week 5)The average pain NRS was complete at the same time each day, i.e. bedtime in the evening. The patient was asked on a scale of '0 to 10', please indicate the number that best describes your pain or average pain in the last 24 hours where 0 = no pain and 10 = pain as bad as you can imagine. No pain relates to the time prior to the onset of pain due to cancer. A negative value indicates an improvement in pain score from baseline.
Change in Mean Daily NRS Pain Score (Worst Pain).5 Weeks: Baseline (first 3 days) - End of Treatment (last 3 days of week 5)The worst pain NRS was completed at the same time each day, i.e. bedtime in the evening. The patient was asked on a scale of '0 to 10', please indicate the number that best describes your worst pain in the last 24 hours where 0 = no pain and 10 = pain as bad as you can imagine. No pain relates to the time prior to the onset of pain due to cancer. A negative value indicates an improvement in worst pain score from baseline.
Change in Sleep Disruption NRS5 Weeks: Baseline - End of Treatment (Last 3 days of Week 5)The sleep disruption NRS was completed at the same time each day, i.e. bedtime in the evening. The patient was asked on a scale of '0 to 10', please indicate how your pain disrupted your sleep last night? where 0 = did not disrupt sleep and 10 = completely disrupted (unable to sleep at all). A negative value indicates an improvement in sleep disruption score from baseline.
Change in Cumulative Average Pain Response CurvesBaseline to end of treatment (Week 5)The cumulative response to treatment is the percentage changes from baseline in the mean NRS pain score as defined as the 30% response. The pain NRS was completed at the same time each day, i.e. bedtime in the evening. The patient was asked on a scale of '0 to 10', please indicate the number that best describes your pain or average pain in the last 24 hours where 0 = no pain and 10 = pain as bad as you can imagine. No pain relates to the time prior to the onset of pain due to cancer.
Change in Patient Assessment of Constipation Quality of Life (PAC-QoL)Baseline (Visit 2) and End of Treatment (Week 5 or premature termination)The PAC-QoL questionnaire consists of 28 questions divided into the following areas: 4 questions on physical discomfort, 8 questions on psychosocial discomfort, 11 questions on worries/concerns and 5 questions on satisfaction. The PAC-QoL was completed at baseline and then at the end of treatment. An overall score (range 0-4) was calculated at each visit and the difference determined. A positive difference in score represents an improvement.
Change in Patient Global Impression of Change - PGICEnd of Week 5A 7-point Likert-type scale was used, with the question: 'Please assess the status of your pain due to cancer since entry into the study using the scale below' with the markers very much improved, much improved, slightly improved, no change, slightly worse, much worse or very much worse. At Visit 2 (Baseline) patients wrote a brief description of their pain caused by cancer which was used at Week 5 to aid their memory regarding their symptoms at study start. For each of above markers the number of participants were reported.
Change in Montgomery Asberg Depression Rating Scale (MADRS)Baseline and End of Treatment (Week 5 or premature termination)The MADRS comprises of 10 questions that are completed by the patient to determine their depression level. The MADRS was completed at Visit 2 (Baseline) prior to receiving the study drug and at Visit 4 (Week 5 or premature termination). Each item is scored on a 0-6 scale , where 0=no sadness to 6=extreme and continuous gloom and despondency, and the MADRS score is the sum of the 10 item scores (range 0-60). The higher the score the more severe the depression.
Change in Brief Pain Inventory - Short Form (BPI-SF)Baseline (Visit 2) and End of Treatment (End of Week 5 or premature termination)The BPI-SF is a 14-item questionnaire that asks patients to rate pain over the prior week and the degree to which it interferes with activities on a 0 to 10 scale, where 0=no pain and 10=pain as bad as you can imagine. Severity is measured as worst pain, least pain, average pain, and pain right now. The severity composite score was calculated as the arithmetic mean of the four severity items(range 0-10). the minimum value is zero and maximum is 10. A higher score represents a poor outcome.

Countries

Belgium, Canada, Chile, Czechia, Finland, France, Germany, India, Italy, Mexico, Poland, Romania, South Africa, Spain, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Sativex High Dose Group
Range of 11 to 16 sprays per day. Each actuation of oromucosal spray delivers 2.7mg delta-9-tetrahydrocannabinol (THC) and 2.5mg cannabidiol (CBD). Thus maximum daily dose is 43.2mg THC and 40mg CBD.
90
Sativex Medium Dose Group
Range of 6 to 10 sprays per day. Each actuation of oromucosal spray delivers 2.7mg delta-9-tetrahydrocannabinol (THC) and 2.5mg cannabidiol (CBD). Thus maximum daily dose is 27mg THC and 25mg CBD.
88
Sativex Low Dose Group
Range of 1 to 4 sprays per day. Each actuation of oromucosal spray delivers 2.7mg delta-9-tetrahydrocannabinol (THC) and 2.5mg cannabidiol (CBD). Thus maximum daily dose is 10.8mg THC and 10mg CBD.
91
Placebo
Range of 1-16 sprays per day of placebo spray
91
Total360

Baseline characteristics

CharacteristicSativex High Dose GroupSativex Medium Dose GroupSativex Low Dose GroupPlaceboTotal
Age Continuous58 years
STANDARD_DEVIATION 11.2
59 years
STANDARD_DEVIATION 31.1
59 years
STANDARD_DEVIATION 12.3
56 years
STANDARD_DEVIATION 12.2
58 years
STANDARD_DEVIATION 12.2
Sex: Female, Male
Female
42 Participants39 Participants46 Participants47 Participants174 Participants
Sex: Female, Male
Male
48 Participants49 Participants45 Participants44 Participants186 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
82 / 9073 / 8768 / 9169 / 91
serious
Total, serious adverse events
28 / 9018 / 8735 / 9123 / 91

Outcome results

Primary

Number of Patients With at Least 30% Improvement in Numerical Rating Scale (NRS) Average Pain Score From Baseline

A positive 30% pain response is defined as a reduction of at least 30% in the mean NRS average pain score from baseline to week 5 (last 3 days). The patient was asked on a scale of '0 to 10', please indicate the number that best describes your pain or average pain in the last 24 hours where 0 = no pain and 10 = pain as bad as you can imagine. No pain relates to the time prior to the onset of pain due to cancer. The average pain NRS was completed at the same time each day, i.e. bedtime in the evening.

Time frame: 5 Weeks: Baseline (first 3 days) - Week 5 (last 3 days)

ArmMeasureValue (NUMBER)
Sativex High Dose GroupNumber of Patients With at Least 30% Improvement in Numerical Rating Scale (NRS) Average Pain Score From Baseline22 Participants
Sativex Medium Dose GroupNumber of Patients With at Least 30% Improvement in Numerical Rating Scale (NRS) Average Pain Score From Baseline26 Participants
Sativex Low Dose GroupNumber of Patients With at Least 30% Improvement in Numerical Rating Scale (NRS) Average Pain Score From Baseline30 Participants
PlaceboNumber of Patients With at Least 30% Improvement in Numerical Rating Scale (NRS) Average Pain Score From Baseline24 Participants
Comparison: The proportions of responders were compared between the treatment groups using logistic regression with region and treatment groups as factors. The null hypothesis was that there was no difference between each of the Sativex treatment groups and placebo. The estimated response rates, odds ratios, 95% CIs for the odds ratios and p-values were presented.p-value: 0.3395% CI: [0.72, 2.6]Regression, Logistic
Comparison: As for Sativex Low dose versus placebop-value: 0.6295% CI: [0.46, 1.76]Regression, Logistic
Comparison: As for Sativex Low dose versus placebop-value: 0.6195% CI: [0.62, 2.28]Regression, Logistic
Secondary

Change in Brief Pain Inventory - Short Form (BPI-SF)

The BPI-SF is a 14-item questionnaire that asks patients to rate pain over the prior week and the degree to which it interferes with activities on a 0 to 10 scale, where 0=no pain and 10=pain as bad as you can imagine. Severity is measured as worst pain, least pain, average pain, and pain right now. The severity composite score was calculated as the arithmetic mean of the four severity items(range 0-10). the minimum value is zero and maximum is 10. A higher score represents a poor outcome.

Time frame: Baseline (Visit 2) and End of Treatment (End of Week 5 or premature termination)

ArmMeasureValue (MEAN)Dispersion
Sativex High Dose GroupChange in Brief Pain Inventory - Short Form (BPI-SF)-1.0 Score on scaleStandard Deviation 1.9
Sativex Medium Dose GroupChange in Brief Pain Inventory - Short Form (BPI-SF)-1.5 Score on scaleStandard Deviation 1.6
Sativex Low Dose GroupChange in Brief Pain Inventory - Short Form (BPI-SF)-1.3 Score on scaleStandard Deviation 2.3
PlaceboChange in Brief Pain Inventory - Short Form (BPI-SF)-1.0 Score on scaleStandard Deviation 1.9
Secondary

Change in Cumulative Average Pain Response Curves

The cumulative response to treatment is the percentage changes from baseline in the mean NRS pain score as defined as the 30% response. The pain NRS was completed at the same time each day, i.e. bedtime in the evening. The patient was asked on a scale of '0 to 10', please indicate the number that best describes your pain or average pain in the last 24 hours where 0 = no pain and 10 = pain as bad as you can imagine. No pain relates to the time prior to the onset of pain due to cancer.

Time frame: Baseline to end of treatment (Week 5)

ArmMeasureValue (MEDIAN)
Sativex High Dose GroupChange in Cumulative Average Pain Response Curves-13 Percent Change
Sativex Medium Dose GroupChange in Cumulative Average Pain Response Curves-20 Percent Change
Sativex Low Dose GroupChange in Cumulative Average Pain Response Curves-20 Percent Change
PlaceboChange in Cumulative Average Pain Response Curves-10 Percent Change
Comparison: Each of the active treatment groups were compared with placebo using pairwise Wilcoxon rank-sum tests. The Hodges-Lehmann estimates and 95% CI for the median differences were also presented.p-value: 0.007795% CI: [-21.35, -3.33]Wilcoxon rank sum tests
Comparison: As for Sativex low dose versus placebop-value: 0.6795% CI: [-11.04, 7.14]Wilcoxin rank sum test
Comparison: As for Sativex low dose versus placebop-value: 0.03995% CI: [-17.14, 0]Wilcoxin rank sum test
Secondary

Change in Mean Daily NRS Pain Score (Average Pain).

The average pain NRS was complete at the same time each day, i.e. bedtime in the evening. The patient was asked on a scale of '0 to 10', please indicate the number that best describes your pain or average pain in the last 24 hours where 0 = no pain and 10 = pain as bad as you can imagine. No pain relates to the time prior to the onset of pain due to cancer. A negative value indicates an improvement in pain score from baseline.

Time frame: 5 Weeks: Baseline (first 3 days) - End of Treatment (last 3 days of week 5)

ArmMeasureValue (MEAN)Dispersion
Sativex High Dose GroupChange in Mean Daily NRS Pain Score (Average Pain).-0.9 Points on scaleStandard Deviation 1.9
Sativex Medium Dose GroupChange in Mean Daily NRS Pain Score (Average Pain).-1.2 Points on scaleStandard Deviation 1.7
Sativex Low Dose GroupChange in Mean Daily NRS Pain Score (Average Pain).-1.6 Points on scaleStandard Deviation 2.1
PlaceboChange in Mean Daily NRS Pain Score (Average Pain).-0.8 Points on scaleStandard Deviation 1.8
Comparison: The change in mean pain NRS score (average pain) was analyzed using analysis of covariance (ANCOVA) with the baseline value as a covariate and region and treatment group as factors.p-value: 0.00695% CI: [-1.28, -0.22]ANCOVA
Comparison: As for Sativex low dose versus placebop-value: 0.7595% CI: [-0.62, 0.44]ANCOVA
Comparison: As for Sativex low dose versus placebop-value: 0.1995% CI: [-0.89, 0.18]ANCOVA
Secondary

Change in Mean Daily NRS Pain Score (Worst Pain).

The worst pain NRS was completed at the same time each day, i.e. bedtime in the evening. The patient was asked on a scale of '0 to 10', please indicate the number that best describes your worst pain in the last 24 hours where 0 = no pain and 10 = pain as bad as you can imagine. No pain relates to the time prior to the onset of pain due to cancer. A negative value indicates an improvement in worst pain score from baseline.

Time frame: 5 Weeks: Baseline (first 3 days) - End of Treatment (last 3 days of week 5)

ArmMeasureValue (MEAN)Dispersion
Sativex High Dose GroupChange in Mean Daily NRS Pain Score (Worst Pain).-1.0 Points on scaleStandard Deviation 1.9
Sativex Medium Dose GroupChange in Mean Daily NRS Pain Score (Worst Pain).-1.2 Points on scaleStandard Deviation 1.8
Sativex Low Dose GroupChange in Mean Daily NRS Pain Score (Worst Pain).-1.6 Points on scaleStandard Deviation 2.2
PlaceboChange in Mean Daily NRS Pain Score (Worst Pain).-0.9 Points on scaleStandard Deviation 2
Comparison: The change in mean pain NRS score (worst pain) was analyzed using ANCOVA with the baseline value as a covariate and region and treatment group as factors.p-value: 0.01195% CI: [-1.3, -0.17]ANCOVA
Comparison: As for Sativex low dose versus placebop-value: 0.1495% CI: [-0.81, 0.11]ANCOVA
Comparison: As for Sativex low dose versus placebop-value: 0.495% CI: [-0.81, 0.32]ANCOVA
Secondary

Change in Montgomery Asberg Depression Rating Scale (MADRS)

The MADRS comprises of 10 questions that are completed by the patient to determine their depression level. The MADRS was completed at Visit 2 (Baseline) prior to receiving the study drug and at Visit 4 (Week 5 or premature termination). Each item is scored on a 0-6 scale , where 0=no sadness to 6=extreme and continuous gloom and despondency, and the MADRS score is the sum of the 10 item scores (range 0-60). The higher the score the more severe the depression.

Time frame: Baseline and End of Treatment (Week 5 or premature termination)

ArmMeasureValue (MEAN)Dispersion
Sativex High Dose GroupChange in Montgomery Asberg Depression Rating Scale (MADRS)-0.4 Score on scaleStandard Deviation 8.6
Sativex Medium Dose GroupChange in Montgomery Asberg Depression Rating Scale (MADRS)-1.0 Score on scaleStandard Deviation 8.5
Sativex Low Dose GroupChange in Montgomery Asberg Depression Rating Scale (MADRS)-1.1 Score on scaleStandard Deviation 7
PlaceboChange in Montgomery Asberg Depression Rating Scale (MADRS)-2.9 Score on scaleStandard Deviation 9
Secondary

Change in Patient Assessment of Constipation Quality of Life (PAC-QoL)

The PAC-QoL questionnaire consists of 28 questions divided into the following areas: 4 questions on physical discomfort, 8 questions on psychosocial discomfort, 11 questions on worries/concerns and 5 questions on satisfaction. The PAC-QoL was completed at baseline and then at the end of treatment. An overall score (range 0-4) was calculated at each visit and the difference determined. A positive difference in score represents an improvement.

Time frame: Baseline (Visit 2) and End of Treatment (Week 5 or premature termination)

ArmMeasureValue (MEAN)Dispersion
Sativex High Dose GroupChange in Patient Assessment of Constipation Quality of Life (PAC-QoL)0.0 Score on scaleStandard Deviation 0.7
Sativex Medium Dose GroupChange in Patient Assessment of Constipation Quality of Life (PAC-QoL)-0.1 Score on scaleStandard Deviation 0.5
Sativex Low Dose GroupChange in Patient Assessment of Constipation Quality of Life (PAC-QoL)0.0 Score on scaleStandard Deviation 0.6
PlaceboChange in Patient Assessment of Constipation Quality of Life (PAC-QoL)-0.1 Score on scaleStandard Deviation 0.6
Secondary

Change in Patient Global Impression of Change - PGIC

A 7-point Likert-type scale was used, with the question: 'Please assess the status of your pain due to cancer since entry into the study using the scale below' with the markers very much improved, much improved, slightly improved, no change, slightly worse, much worse or very much worse. At Visit 2 (Baseline) patients wrote a brief description of their pain caused by cancer which was used at Week 5 to aid their memory regarding their symptoms at study start. For each of above markers the number of participants were reported.

Time frame: End of Week 5

ArmMeasureGroupValue (NUMBER)
Sativex High Dose GroupChange in Patient Global Impression of Change - PGICSlightly worse6 Participants
Sativex High Dose GroupChange in Patient Global Impression of Change - PGICVery much worse2 Participants
Sativex High Dose GroupChange in Patient Global Impression of Change - PGICVery much improved6 Participants
Sativex High Dose GroupChange in Patient Global Impression of Change - PGICSlightly improved25 Participants
Sativex High Dose GroupChange in Patient Global Impression of Change - PGICMuch improved20 Participants
Sativex High Dose GroupChange in Patient Global Impression of Change - PGICMuch worse1 Participants
Sativex High Dose GroupChange in Patient Global Impression of Change - PGICNo change13 Participants
Sativex Medium Dose GroupChange in Patient Global Impression of Change - PGICVery much improved6 Participants
Sativex Medium Dose GroupChange in Patient Global Impression of Change - PGICNo change13 Participants
Sativex Medium Dose GroupChange in Patient Global Impression of Change - PGICVery much worse2 Participants
Sativex Medium Dose GroupChange in Patient Global Impression of Change - PGICSlightly worse5 Participants
Sativex Medium Dose GroupChange in Patient Global Impression of Change - PGICMuch improved19 Participants
Sativex Medium Dose GroupChange in Patient Global Impression of Change - PGICMuch worse0 Participants
Sativex Medium Dose GroupChange in Patient Global Impression of Change - PGICSlightly improved26 Participants
Sativex Low Dose GroupChange in Patient Global Impression of Change - PGICSlightly worse3 Participants
Sativex Low Dose GroupChange in Patient Global Impression of Change - PGICMuch worse1 Participants
Sativex Low Dose GroupChange in Patient Global Impression of Change - PGICMuch improved24 Participants
Sativex Low Dose GroupChange in Patient Global Impression of Change - PGICSlightly improved19 Participants
Sativex Low Dose GroupChange in Patient Global Impression of Change - PGICNo change13 Participants
Sativex Low Dose GroupChange in Patient Global Impression of Change - PGICVery much improved10 Participants
Sativex Low Dose GroupChange in Patient Global Impression of Change - PGICVery much worse0 Participants
PlaceboChange in Patient Global Impression of Change - PGICVery much worse0 Participants
PlaceboChange in Patient Global Impression of Change - PGICVery much improved9 Participants
PlaceboChange in Patient Global Impression of Change - PGICMuch improved16 Participants
PlaceboChange in Patient Global Impression of Change - PGICSlightly improved28 Participants
PlaceboChange in Patient Global Impression of Change - PGICNo change17 Participants
PlaceboChange in Patient Global Impression of Change - PGICSlightly worse1 Participants
PlaceboChange in Patient Global Impression of Change - PGICMuch worse1 Participants
Secondary

Change in Sleep Disruption NRS

The sleep disruption NRS was completed at the same time each day, i.e. bedtime in the evening. The patient was asked on a scale of '0 to 10', please indicate how your pain disrupted your sleep last night? where 0 = did not disrupt sleep and 10 = completely disrupted (unable to sleep at all). A negative value indicates an improvement in sleep disruption score from baseline.

Time frame: 5 Weeks: Baseline - End of Treatment (Last 3 days of Week 5)

ArmMeasureValue (MEAN)Dispersion
Sativex High Dose GroupChange in Sleep Disruption NRS-0.7 Points on scaleStandard Deviation 2.1
Sativex Medium Dose GroupChange in Sleep Disruption NRS-0.9 Points on scaleStandard Deviation 2.1
Sativex Low Dose GroupChange in Sleep Disruption NRS-1.5 Points on scaleStandard Deviation 2.1
PlaceboChange in Sleep Disruption NRS-0.8 Points on scaleStandard Deviation 2.2
Comparison: The change in mean sleep disturbance NRS score was analyzed using ANCOVA with the baseline value as a covariate and region and treatment group as factors.p-value: 0.00395% CI: [-1.45, -0.31]ANCOVA
Comparison: As for Sativex low dose versus placebop-value: 0.7895% CI: [-0.65, 0.49]ANCOVA
Comparison: As for Sativex low dose versus placebo.p-value: 0.2695% CI: [-0.9, 0.24]ANCOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026