NCT00952601

Brief Summary

Pharmacotherapy has long been considered the primary approach for tic suppression in Tourette syndrome (TS). Unfortunately, medications are often ineffective and frequently have significant side-effects. This is a pilot therapeutic study using a dietary approach, the modified Atkins diet (MAD). The goal of this study is to establish the safety, tolerability, and efficacy of dietary therapy in patients with TS ("proof of concept") and to determine whether this intervention is worthy of evaluation in large-scale clinical trials. The modified Atkins diet mimics the well established ketogenic diet, but in a less-restrictive dietary manner. Dietary approaches using the MAD/ketogenic diet are currently under investigation for neurological conditions other than epilepsy, including Alzheimer disease, headaches, autism, narcolepsy, brain tumors, traumatic brain injury, Parkinson's disease, and depression.

Trial Health

57
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Sep 2008

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2008

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

August 3, 2009

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 6, 2009

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2010

Completed
Last Updated

July 15, 2010

Status Verified

July 1, 2010

Enrollment Period

1.8 years

First QC Date

August 3, 2009

Last Update Submit

July 14, 2010

Conditions

Keywords

TouretteAtkinsKetosisTic

Outcome Measures

Primary Outcomes (1)

  • Tic frequency

    Number of tics per day, intensity, severity, will be compared to baseline (pre-diet)

    2 months

Secondary Outcomes (1)

  • Ketosis

    2 months

Study Arms (1)

Modified Atkins Diet

EXPERIMENTAL

Patients are started on the modified Atkins diet at 15 grams per day.

Dietary Supplement: Modified Atkins diet

Interventions

Modified Atkins dietDIETARY_SUPPLEMENT

Low carbohydrate diet

Modified Atkins Diet

Eligibility Criteria

Age12 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Ages 12-65 years
  • Tourette syndrome (vocal and motor tics for over a year)
  • \> 20 score on the Yale Global Tic Severity Scale
  • Ability to follow instructions and comply with the dietary changes

You may not qualify if:

  • Secondary tics
  • Underweight (BMI \< 5%)
  • Prior use of the Atkins diet for over 2 days
  • High cholesterol or triglycerides
  • Major depression or anxiety disorder
  • Pregnancy
  • Substance abuse

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Johns Hopkins Hospital

Baltimore, Maryland, 21287, United States

Location

Related Publications (1)

  • Kossoff EH, Dorward JL. The modified Atkins diet. Epilepsia. 2008 Nov;49 Suppl 8:37-41. doi: 10.1111/j.1528-1167.2008.01831.x.

    PMID: 19049584BACKGROUND

MeSH Terms

Conditions

Tourette SyndromeKetosisTics

Condition Hierarchy (Ancestors)

Basal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTic DisordersMovement DisordersHeredodegenerative Disorders, Nervous SystemNeurodegenerative DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesNeurodevelopmental DisordersMental DisordersAcidosisAcid-Base ImbalanceMetabolic DiseasesNutritional and Metabolic DiseasesDyskinesiasNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER

Study Record Dates

First Submitted

August 3, 2009

First Posted

August 6, 2009

Study Start

September 1, 2008

Primary Completion

July 1, 2010

Study Completion

July 1, 2010

Last Updated

July 15, 2010

Record last verified: 2010-07

Locations