Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
PHASE3
98 participants
INTERVENTIONAL
2018-04-05
2020-11-20
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Patients (≥18 years) with chronic tic disorders and Tourette syndrome will be recruited.
The objective of the trial is to demonstrate that treatment with the cannabis extract nabiximols is superior to placebo in reducing tics and comorbidities in patients with Tourette syndrome and chronic tic disorders.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Keywords
Explore important study keywords that can help with search, categorization, and topic discovery.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
nabiximols, oromucosal spray
1-12 puffs nabiximols / day, Duration of treatment: 13 weeks
nabiximols
starting dose (1 puff): 2.7 mg delta-9-tetrahydrocannabinol (THC) and 2.5 mg cannabidiol (CBD), maximum dose (12 puffs): 32.4 mg THC/30 mg CBD, no target dose is defined
Duration of treatment: 13 weeks
placebo, oromucosal spray
1-12 puffs placebo / day, Duration of treatment: 13 weeks
placebo
analogous to experimental intervention
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
nabiximols
starting dose (1 puff): 2.7 mg delta-9-tetrahydrocannabinol (THC) and 2.5 mg cannabidiol (CBD), maximum dose (12 puffs): 32.4 mg THC/30 mg CBD, no target dose is defined
Duration of treatment: 13 weeks
placebo
analogous to experimental intervention
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
2. Age ≥18 years
3. Total tic score of the Yale Global Tic Severity Scale (YGTSS-TTS) \> 14 for patients with Tourette syndrome or YGTSS-TTS \> 10 for patients with chronic motor or vocal tics only (= CTD)
4. Clinical Global Impression-Severity Score (CGI-S) ≥ 4
5. Medication (and stimulation parameters for deep brain stimulation) for tics and comorbidities must be on a stable dose for at least 30 days before entering the study and patient must consent to maintain the stable dose during the study
6. Signed written informed consent and willingness to comply with treatment and follow-up procedures
7. Patients capable of understanding the investigational nature, potential risks and benefits of the clinical trial
8. Prevention of pregnancy:
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 a negative oestrogen test or
Women of childbearing potential with a negative urine ß-HCG pregnancy test at screening who agree to meet one of the following criteria from the time of screening, during the study and for a period of three months following the last administration of study medication:
* correct use of contraception methods. The following are acceptable: hormonal contraceptives (combined oral contraceptives, oestrogen-free pills with desogestrel, implants, transdermal patches, hormonal vaginal devices or injections with prolonged release), intrauterine device (IUS)
* true abstinence (periodic abstinence and withdrawal are not acceptable methods of contraception)
* sexual relationship only with female partners and/or sterile male partners or Males who are not surgically sterile and who are sexually active with female partner(s) of childbearing potential must agree to correct use of one of the following contraception methods from the time of screening, during the study and for a period of three months following the last administration of study medication: hormonal contraceptives (combined oral contraceptives, oestrogen-free pills with desogestrel, implants, transdermal patches, hormonal vaginal devices or injections with prolonged release), intrauterine device (IUS)
Exclusion Criteria
2. Ongoing behavioural treatment for tics
3. History of schizophrenia, psychotic, severe personality, or pervasive developmental disorder
4. Patient has a history of suicidal ideation with intent to act or a plan to act in the 12 months preceding the Screening Visit
5. Current clinical diagnosis of substance abuse or dependence and compulsive disorder
6. Secondary tic disorders and other significant neurological disorders that, in the opinion of the investigator, might interfere with the patient's participation in the study, poses added risk for the patient, or confounds the assessment of patient safety
7. Severe cardiovascular diseases, hepatitis C, or other severe hepatic and renal disorders by history that, in the opinion of the investigator, might interfere with the patient's participation in the study, poses added risk for the patient, or confounds the assessment of patient safety
8. Any medical condition based on medical history, physical examination, and vital sign measurements that, in the opinion of the Investigator, might interfere with the patient's participation in the study, poses added risk for the patient, or confounds the assessment of patient safety
9. 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
10. Positive urine pregnancy test
11. Pregnancy or lactation period
12. The subject has 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.
13. Known or suspected hypersensitivity to any of the active substances or any excipients of the investigational medicinal product
18 Years
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
German Research Foundation
OTHER
Hannover Medical School
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Kirsten Müller-Vahl, MD
Role: PRINCIPAL_INVESTIGATOR
Hannover Medical School, Clinic of Psychiatry, Socialpsychiatry and Psychotherapy
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Uniklinik RWTH Aachen, Psychiatry and Psychotherapy
Aachen, , Germany
University Hospital Cologne, Psychiatry and Psychotherapy
Cologne, , Germany
University of Freiburg, Psychiatry and Psychotherapy
Freiburg im Breisgau, , Germany
Hannover Medical School, Clinic of Psychiatry, Socialpsychiatry and Psychotherapy
Hanover, , Germany
University Hospital Schleswig-Holstein, Institute of Neurogenetics, Department of Pediatric and Adult Movement Disorders and Neuropsychiatrics
Lübeck, , Germany
LMU Munich, Psychiatry and Psychotherapy
Munich, , Germany
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
Szejko N, Saramak K, Lombroso A, Muller-Vahl K. Cannabis-based medicine in treatment of patients with Gilles de la Tourette syndrome. Neurol Neurochir Pol. 2022;56(1):28-38. doi: 10.5603/PJNNS.a2021.0081. Epub 2021 Oct 28.
Jakubovski E, Pisarenko A, Fremer C, Haas M, May M, Schumacher C, Schindler C, Hackl S, Aguirre Davila L, Koch A, Brunnauer A, Cimpianu CL, Lutz B, Bindila L, Muller-Vahl K. The CANNA-TICS Study Protocol: A Randomized Multi-Center Double-Blind Placebo Controlled Trial to Demonstrate the Efficacy and Safety of Nabiximols in the Treatment of Adults With Chronic Tic Disorders. Front Psychiatry. 2020 Nov 26;11:575826. doi: 10.3389/fpsyt.2020.575826. eCollection 2020.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
2016-000564-42
Identifier Type: EUDRACT_NUMBER
Identifier Source: secondary_id
CANNA-TICS
Identifier Type: -
Identifier Source: org_study_id