New therapeutic approach to Tourette Syndrome in children based on a study of the effectiveness and safety of magnesium and vitamin B6

ISRCTN ISRCTN41082378
DOI https://doi.org/10.1186/ISRCTN41082378
EudraCT/CTIS number 2006-005779-16
Secondary identifying numbers PI06/90242; 0382/2006; STIII2006
Submission date
04/09/2008
Registration date
30/09/2008
Last edited
20/07/2009
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Rafael Garcia-Lopez
Scientific

Department of Anaesthesia and Reanimation
Hospital Costa del Sol
Ctra Nacional 340, km 187
Marbella
29603
Spain

Email drgarcia.anest@telefonica.net

Study information

Study designBlinded, randomised clinical trial study, phase IV
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleNew therapeutic approach to Tourette Syndrome in children based on a randomised placebo-controlled double-blind phase IV study of the effectiveness and safety of magnesium and vitamin B6
Study objectivesWith respect to placebo treatment, the combination of 0.5 mEq/Kg magnesium and 2 mg/Kg vitamin B6 reduces motor and phonic tics and incapacity in cases of exacerbated Tourette Syndrome (TS) among children aged 7 - 14 years, as measured on the Yale Global Tic Severity Scale (YGTSS).
Ethics approval(s)Ethics approval received from the Andalusian Government Committee for Clinical Trials on the 11th December 2006.
Health condition(s) or problem(s) studiedTourette Syndrome
InterventionPatients will be randomsied to the following medication:
1. Magnesium pidolate 0.5 mEq/Kg/day, divided to be taken twice daily. This should not be taken in conjunction with calcium or dairy products.
2. Pyroxidine alpha-aketoglutarate 2 mg/Kg/day, once daily

The clinical data and the YGTSS score at the onset of the period of exacerbation of the clinical condition (t0) will be noted. The parents/guardians will be informed, and on receipt of their informed consent, the aforementioned medication will be provided. This medication is to be taken orally, at the patient's home, and follow-up will be performed, at the healthcare clinic, at 15 (t1), 30 (t2), 60 (t3) and 90 (t4) days. A positron emission tomography (PET) scan will be performed at the start and end of the experimental period, for 15 patients (applied to the first 15 children in the study in both groups, experimental and control, in t0 and t4). The psychological impact of the treatment on the families concerned will be measured using the Psychological General Well-Being Index (PGWBI).
Intervention typeSupplement
Primary outcome measureThe clinical diagnosis of TS will be confirmed, and the YGTSS score ascertained, so that the patient may be included in the study and any subsequent fall in the global score recorded (at t0 ,t1, t2, t3 and t4).
Secondary outcome measuresMetabolic changes in baseline and post-treatment PET will be recorded.
Overall study start date01/10/2007
Completion date30/05/2009

Eligibility

Participant type(s)Patient
Age groupChild
Lower age limit7 Years
Upper age limit14 Years
SexBoth
Target number of participants38
Key inclusion criteria1. Aged 7 - 14 years, either sex. This is the age bracket during which the natural course of the illness is most exacerbated. Before the age of 7 years, the tics may not yet have appeared (this generally occurs at the age of 5 - 7 years). After 14 years, symptoms tend to stabilise.
2. Informed consent of the child's parents or guardians, and reasoned agreement with the child
3. Clinical diagnosis of TS, according to Diagnostic and Statistical Manual of Mental Disorders - Fourth Edition (DSM-IV) criteria
4. Score of 40 or more on the YGTSS
Key exclusion criteria1. Severe attention deficit hyperactivity disorder (ADHD) or obsessive compulsive disorder (OCD), not clinically controlled
2. Autism
3. Unrelated depression
4. Allergy to acetylsalicylic acid (due to the excipients used)
Date of first enrolment01/10/2007
Date of final enrolment30/05/2009

Locations

Countries of recruitment

  • Spain

Study participating centre

Department of Anaesthesia and Reanimation
Marbella
29603
Spain

Sponsor information

The Carlos III Health Institute (Instituto de Salud Carlos III) (Spain)
Research organisation

C/ Sinesio Delgado, 6
Madrid
28029
Spain

Phone +34 (0)91 822 25 37
Email Oficina.informacion@isciii.es
Website http://www.isciii.es/htdocs/en/index.jsp
ROR logo "ROR" https://ror.org/00ca2c886

Funders

Funder type

Government

The Carlos III Health Institute (Instituto de Salud Carlos III) (Spain) - Healthcare Research Fund (project no. PI06/90242)

No information available

Andalusian Regional Goverment (Spain) - Health Department (project no. 0382/2006)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Other publications analysis of the adapted YGTSS questionnaire 01/03/2008 Yes No
Protocol article protocol 10/03/2009 Yes No