Baclofen Treatment of Ataxia Telangiectasia - Full Text View

Sponsored by:	Johns Hopkins University
Information provided by:	Johns Hopkins University
ClinicalTrials.gov Identifier:	NCT00640003

Purpose

This research is being done to find out if Baclofen, a medicine that is often used for the treatment of abnormal stiffness, might also be useful to treat some of the neurologic problems caused by ataxia telangiectasia (A-T). We also want to find out if there are better ways to measure the problems of ataxia and abnormal eye movement for future studies of medication in ataxia telangiectasia.

Condition	Intervention	Phase
Ataxia Telangiectasia (A-T)	Drug: Baclofen or Placebo	Phase 0

Genetics Home Reference related topics: ataxia-telangiectasia Friedreich ataxia

MedlinePlus related topics: Ataxia Telangiectasia

Drug Information available for: Baclofen

U.S. FDA Resources

Study Type:	Interventional
Study Design:	Treatment, Randomized, Double Blind (Subject, Caregiver, Investigator), Placebo Control, Crossover Assignment, Safety/Efficacy Study

Further study details as provided by Johns Hopkins University:

Primary Outcome Measures:

Improvement in the decay constant for velocity storage as assessed by quantitative video examination of eye movement during and after rotation. [ Time Frame: months ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

Other outcome measures include quantitative measurement of tremor, postural stability and a standard neurologic examination. [ Time Frame: months ] [ Designated as safety issue: No ]

Estimated Enrollment:	12
Study Start Date:	April 2007
Estimated Study Completion Date:	April 2009
Estimated Primary Completion Date:	April 2009 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
1: Experimental	Drug: Baclofen or Placebo Drug given by orally via capsules. Escalation steps in 4-day intervals. Step 1: 5mg QAM. Step 2: 5mg BID. Step 3: 5mg TID. Step 4: 10mg QAM, 5mg BID. Step 5: 10mg BID, 5mg QMid-day. Step 6: 10mg TID. Step 6 will last up to 2 weeks. De-escalation will start from highest dose step and work backwards in 2-day intervals. Complete drug administration of escalating, staying constant at 10mg TID and de-escalating will be done with both drug and placebo.
2: Experimental	Drug: Baclofen or Placebo Drug given by orally via capsules. Escalation steps in 4-day intervals. Step 1: 5mg QAM. Step 2: 5mg BID. Step 3: 5mg TID. Step 4: 10mg QAM, 5mg BID. Step 5: 10mg BID, 5mg QMid-day. Step 6: 10mg TID. Step 6 will last up to 2 weeks. De-escalation will start from highest dose step and work backwards in 2-day intervals. Complete drug administration of escalating, staying constant at 10mg TID and de-escalating will be done with both drug and placebo.

Arms

Assigned Interventions

1: Experimental

Drug: Baclofen or Placebo

Drug given by orally via capsules. Escalation steps in 4-day intervals. Step 1: 5mg QAM. Step 2: 5mg BID. Step 3: 5mg TID. Step 4: 10mg QAM, 5mg BID. Step 5: 10mg BID, 5mg QMid-day. Step 6: 10mg TID. Step 6 will last up to 2 weeks. De-escalation will start from highest dose step and work backwards in 2-day intervals. Complete drug administration of escalating, staying constant at 10mg TID and de-escalating will be done with both drug and placebo.

2: Experimental

Drug: Baclofen or Placebo

Drug given by orally via capsules. Escalation steps in 4-day intervals. Step 1: 5mg QAM. Step 2: 5mg BID. Step 3: 5mg TID. Step 4: 10mg QAM, 5mg BID. Step 5: 10mg BID, 5mg QMid-day. Step 6: 10mg TID. Step 6 will last up to 2 weeks. De-escalation will start from highest dose step and work backwards in 2-day intervals. Complete drug administration of escalating, staying constant at 10mg TID and de-escalating will be done with both drug and placebo.

Eligibility

Ages Eligible for Study:	12 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

Teenagers over 12 years old and young adults with A-T may join if they have been evaluated previously in the A-T Clinical Center at Johns Hopkins Hospital and have a measurable abnormality of eye movement.
Patients who are presently taking Baclofen will be eligible for the study if they are presently receiving the medication under the direction of Dr. Crawford in the ATCC, and are willing to withdraw from the medication for a period of one month prior to the initial screening visit.
Female patients who are sexually active will be given a standard serum HCG pregnancy test.
Those who are sexually active will be counseled about necessary precautions against pregnancy during the duration of the trial.

Exclusion Criteria:

A positive pregnancy test

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00640003

Contacts

Contact: Bessy Guevara, B.A.

443-287-6294

bguevar1@jhmi.edu

Locations

United States, Maryland
Johns Hopkins Hospital	Recruiting
Baltimore, Maryland, United States, 21287
Contact: Bessy Guevara, BA 443-287-6294 bguevar1@jhmi.edu
Principal Investigator: Thomas O Crawford, M.D.

Sponsors and Collaborators

Johns Hopkins University

Investigators

Principal Investigator:

Thomas O Crawford, M.D.

Johns Hopkins School of Medicine

More Information

Responsible Party:	Johns Hopkins School of Medicine ( Thomas Owen Crawford, M.D./Principal Investigator )
Study ID Numbers:	NA_00002180
Study First Received:	March 14, 2008
Last Updated:	March 19, 2008
ClinicalTrials.gov Identifier:	NCT00640003
Health Authority:	United States: Institutional Review Board

Keywords provided by Johns Hopkins University:

AT
Ataxia
Telangiectasia

Study placed in the following topic categories:

Metabolic Diseases
Ataxia-Telangiectasia
Baclofen
Vascular Diseases
Central Nervous System Diseases
Brain Diseases
Dyskinesias
Immunologic Deficiency Syndromes
Signs and Symptoms
Cerebellar Ataxia

Genetic Diseases, Inborn
Telangiectasis
Ataxia
Neurologic Manifestations
Ataxia Telangiectasia
Metabolic disorder
Cerebellar Diseases
Cerebellar ataxia
Spinocerebellar Ataxias
Neurocutaneous Syndromes

Additional relevant MeSH terms:

Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Immune System Diseases
Nervous System Diseases
DNA Repair-Deficiency Disorders
Physiological Effects of Drugs
Neuromuscular Agents
Pharmacologic Actions

Muscle Relaxants, Central
Therapeutic Uses
GABA Agonists
GABA Agents
Cardiovascular Diseases
Peripheral Nervous System Agents
Central Nervous System Agents

ClinicalTrials.gov processed this record on January 14, 2009