About this trial
To evaluate the efficacy, safety and tolerability of the cannabinoid-based medication SCI-110 compared to placebo in subjects with Tourette syndrome.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Tourette syndrome according to Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5)
Male and female subjects with an age between ≥18 and ≤65 years
Total tic score (TTS) of the revised Yale Global Tic Severity Scale (YGTSS-R) >14
Clinical Global Impression-Severity Score (CGI-S) ≥4
Disqualifiers
Comorbid obsessive-compulsive disorder (OCD), attention deficit/hyperactivity disorder (ADHD), depression, and anxiety disorder when unstable or in need of an initial adjustment for a therapy-according to the investigator's judgment
Presence of severe psychiatric conditions such as developmental disability, psychotic illness and bipolar disorder- according to the investigator's judgment
Ongoing behavioural treatment for tics
History of schizophrenia, seizure, psychotic, severe personality, or pervasive developmental disorder
Trial design
Crossover
Treatments tested in this trial
SCI-110
DrugSCI-110 - a softgel capsule containing Dronabinol and Palmitoylethanolamide (PEA) in the following doses: 2.5mg Dronabinol+400mg PEA, 5mg Dronabinol+400mg PEA and 10mg Dronabinol+400mg. Maximum dose 20mg Dronabinol and 800mg PEA a day.
Placebo
Other interventionPill that matches in taste, odour and appearance to SCI-110 active pills
Treatment groups
Trial outcomes
Primary outcomes
Absolute change from baseline in revised version of Yale Global Tic Severity Scale -Revised - (YGTSS-R-TTS)
Absolute change from baseline in revised version of YGTSS-R-TTS as a continuous endpoint at week 12 of the respective treatment period. The Global Severity Score has a range of 0- 100. A higher score on the scale suggests a more severe Tic, or a greater impact the Tic has on the person's life.
Secondary outcomes
Percent reduction in Yale Global Tic Severity Scale -Revised - (YGTSS-R-TTS) of at least 20%
Response to treatment according to YGTSS-R-TTS of at least 20% reduction (compared to baseline) The responder criterion defined as a more severe Tic, or a greater impact the Tic has on the person's life The Global Severity Score has a range of 0- 100. A higher score the scale suggests a more severe Tic, or a greater impact the Tic has on the person's life.
Percent reduction in Yale Global Tic Severity Scale -Revised - (YGTSS-R-TTS) of at least 30%, 35% and 50%
Response to treatment according to YGTSS-R-TTS responder criterion, defined as a percent reduction in YGTSS-R-TTS of at least 30%, 35% and 50% (compared to baseline) The Global Severity Score has a range of 0- 100. A higher score on the scale suggests a more severe Tic, or a greater impact the Tic has on the person's life.
Absolute change from baseline of YGTSS-R Total Score
Absolute change from baseline of YGTSS-R Total Score, the corresponding subdomain motor and phonic total tic scores, the YGTSS-R Impairment Score, as well as of the combination of the total tic score and the impairment score (YGTSS-R-GS (= YGTSS-R-TTS + YGTSS-R-impairment score).
Percent change from baseline of YGTSS-R Total Score
Percent change from baseline of YGTSS-R Total Score, the corresponding subdomain motor and phonic total tic scores, the YGTSS-R Impairment Score, as well as of the combination of the total tic score and the impairment score (YGTSS-R-GS (= YGTSS-R-TTS + YGTSS-R-impairment score).
Other outcomes
Number and rate of patients affected by AEs, SAEs, SUSARs/ADRs, AESIs and AEs
Number of adverse events (AEs), number and rate of patients affected by AEs, Serious Adverse Events (SAE), Suspected Unexpected Serious Adverse reactions (SUSAR) /Adverse Drug Reaction (ADR), Adverse Events of Special Interest (AESI) and AEs leading to withdrawal at each visit.
Absolute values of vital sign blood pressure at each visit and change from baseline.
Absolute values of vital sign blood pressure at each visit and change from baseline for each visit. Number and percentage of clinically significant abnormal values.
Absolute values of vital sign heart rate at each visit and change from baseline.
Absolute values of vital sign heart rate at each visit and change from baseline for each visit. Number and percentage of clinically significant abnormal values.
2.3. Suicide risk assessment measured by the Columbia-Suicide Severity Rating Scale (CSSRS)
Suicide risk assessment measured by the Columbia-Suicide Severity Rating Scale (CSSRS) and change from baseline for each on-site visit.
Sponsors and contacts
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