This trial is active, not recruiting.

Condition melas syndrome
Treatment dichloroacetate
Phase phase 2
Sponsor Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Start date March 2000
Trial size 35 participants
Trial identifier NCT00068913, P01HD32062


Patients with the MELAS syndrome experience devastating mental impairment. This study will evaluate the effectiveness of the drug dichloroacetate (DCA) to reduce the symptoms of MELAS.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification safety/efficacy study
Intervention model crossover assignment
Masking double-blind
Primary purpose treatment

Eligibility Criteria

Male or female participants at least 6 years old.

Inclusion Criteria - A3243G mtDNA point mutation or maternally related to someone who has the mutation - Symptomatic with MELAS, including previous seizure or stroke - Certain laboratory values - Ability to comply with the study protocol

Additional Information

Official title Investigation of Clinical Syndromes Associated With mtDNA Point Mutations: MELAS/DCA Clinical Trial
Principal investigator Darryl C De Vivo, MD
Description Although many organ systems are affected by mitochondrial (mt) DNA point mutations, the nervous system is particularly vulnerable. Maternally inherited mtDNA point mutations may cause chronic progressive encephalopathies and mental retardation. Patients with MELAS (mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes) syndrome have the A3243G point mutation and elevated brain lactate levels. Research has shown that lactic acidosis is associated with progressive impairment in patients with MELAS. This study will evaluate the effectiveness of DCA in lowering lactate levels and slowing the progression of MELAS. Patients with the A3243G mitochondrial mutation and who have had either a stroke or a seizure will be enrolled in this study. Patients will be randomized to receive either DCA or a placebo. At a predetermined time point, patients receiving DCA will be switched to placebo and patients receiving placebo will be switched to DCA. Patients will have study visits every 3 months for 3 years. Study visits will include neurological exams, cognitive testing, nerve conduction tests, and MRIs. Study medicine, testing, hospitalization for research purposes, and travel expenses will be fully covered by the study.
Trial information was received from ClinicalTrials.gov and was last updated in June 2005.
Information provided to ClinicalTrials.gov by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD).