SCI-110, a cannabinoid-based medicine, for adults with Tourette syndrome
Tests SCI-110 against placebo in adults with Tourette syndrome.
Key facts
- Who runs it
- Neurothera Labs Inc.
- Where
- Tel Aviv, IsraelSee the siteAlso in 2 other countries, 2 sites
- Trial code
- Registry title
- SCI-110 in the Treatment of Tourette Syndrome
- Status
- Not yet recruiting
- Phase
- Phase 2
- People taking part
- 164 people, planned
- Started
- Jun 2026
- Expected to end
- Feb 2028
- Type of study
- Interventional, 2 groupsOne group gets a placebo (a dummy treatment), for comparison.
- Treatments tested
- SCI-110
- Placebo
- Record updated
- 21 April 2026
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with Tourette syndrome to test the cannabis-based medicine SCI-110 against a placebo (dummy pill).
- Age
- 18 to 65 years
- Sex
- Men and women
- Disease stage
- Tourette syndrome diagnosed by DSM-5 criteria. Total tic score on the YGTSS-R above 14. CGI-S severity score of 4 or more.
- Earlier treatment
- Medicines for tics or other conditions, and deep brain stimulation settings, must be stable for at least 6 weeks and stay stable. No cannabis or cannabinoid-based medicine in the 30 days before entry. No ongoing behavioural therapy for tics.
- Biomarker or test result
- Negative THC urine test at the start. Women who could become pregnant need a negative pregnancy test.
Main reasons for not taking part
- Unstable OCD, ADHD, depression or anxiety, or severe psychiatric illness such as psychosis or bipolar disorder
- History of schizophrenia, seizures, cannabis dependence, or current substance abuse
- Other tic disorders or other significant neurological disorders
- Severe heart, liver or kidney disease, or known HIV, hepatitis B or hepatitis C
- Pregnancy, breastfeeding, active suicidal thoughts or a past suicide attempt
The registry criteria, word for word
Show all 26 criteriaShow less
Who can take part
- 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
- Medication (and stimulation parameters for deep brain stimulation) for tics and comorbidities must be on a stable dose for at least 6 weeks before entering the study and subject must consent to maintain the stable dose during the study
- Signed written informed consent and willingness to comply with treatment and follow-up procedures
- Subjects capable of understanding the investigational nature, potential risks and benefits of the clinical study
- Women of child-bearing potential must have a negative pregnancy test (e.g., urine human chorionic gonadotropin [hCG]) before first treatment with study medication. They must practice a highly effective, reliable and medically approved contraceptive regimen during the study (e.g., theoretical failure rate less than 1% per year as when used consistently and correctly), which include oral or parenteral or implanted hormonal contraception, vaginal ring releasing hormonal contraception (e.g., Nuvaring), intrauterine device or intrauterine system. Women without childbearing potential may enter this study. Women without childbearing potential defined as follows:; at least 6 weeks after surgical sterilization by bilateral tubal ligation or bilateral oophorectomy or; hysterectomy or uterine agenesis or; ≥ 50 years and in postmenopausal state ≥ 1 year or; \< 50 years and in postmenopausal state ≥ 1 year with urine FSH \> 40 IU/l and urine oestrogen \< 30 ng/l, or serum follicle stimulating hormone (FSH) in the post-menopausal range or a negative oestrogen test
- Male subjects must be willing to use a condom with sexual partners during this study and for a period of three months following the last administration of study medication until the follow-up visit. Male subjects must be willing to abstain from sperm donation for 3 months after the completion of this study
Who cannot take part
- Concomitant medications have to be on stable dose since at least 6 weeks before entering the study and must be well tolerated at baseline without causing dizziness, confusion, sedation, or somnolence)
- Use of cannabis or cannabinoid-based medicine (CBM) in the 30-day period prior to study entry and/or positive delta-9-tetrahydrocannabinol (THC) urine test at baseline
- Subjects who received any investigational medication or used any investigational device within 30 days prior to the first dose of study medication or is actively participating in any investigational drug or device study, or is scheduled to receive an investigational drug or to use an investigational device during the course of the study
- 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
- History of schizophrenia, seizure, psychotic, severe personality, or pervasive developmental disorder
- History of cannabis dependence
- Secondary and other chronic tic disorders or other significant neurological disorders
- Known severe cardiac diseases, known severe cardiovascular diseases, known positivity for human immunodeficiency virus (HIV), hepatitis C, hepatitis B, or other severe hepatic and renal disorders by history
- Subjects with a known allergy, hypersensitivity, or intolerance to the active substances and ingredients of study medication (e.g., cannabis, cannabinoids, or sesame oil)
- Any condition, which in the opinion of the investigator, would interfere with the evaluation of the study product or poses a health risk to the subject
- Ongoing behavioural treatment for tics
- Current clinical diagnosis of substance abuse or dependence
- Positive urine ß-HCG pregnancy test
- Pregnant or breast-feeding women
- Subjects who are employees of the sponsor or employees or close relatives of the investigator
- Subjects with active suicidal ideation and behaviour (SI/B) according to the Columbia-Suicide Severity Rating Scale (C-SSRS) and/or subjects that have attempted suicide in the past
Check if you might fit
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 65 years old?
Where in Israel
Also in 2 other countries, 2 sites
- Neurological Institute, Tel Aviv Sourasky Medical CenterTel Aviv, IsraelContact: Tanya Gurevich, PhD. MDNot yet recruiting
About the trial
What the trial wants to find out
To evaluate the efficacy, safety and tolerability of the cannabinoid-based medication SCI-110 compared to placebo in subjects with Tourette syndrome.
The 2 groups in the trial
- SCI-110Treatment being tested
Cannabinoid-based medication consisting of Dronabinol and PEA
- DronabinolPlacebo, for comparison
Placebo matched in taste, odour and appearance to SCI-110
Treatment: Placebo
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- A Randomized, Double-Blind, Placebo Controlled, Cross-Over Study to Evaluate the Efficacy, Safety and Tolerability of Daily Oral SCI-110 in Treating Adults With Tourette Syndrome.
- Plain-language title
- SCI-110, a cannabinoid-based medicine, for adults with Tourette syndromeGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 14 November 2026.
- Fit questions
- Built from NCT05126888, who can take part
- Record updated
- 21 April 2026