AzTrials
AzTrials

MELAS SyndromePhase 2MELASNCT00887562

Study of Idebenone in the Treatment of Mitochondrial Encephalopathy Lactic Acidosis & Stroke-like Episodes

A Phase 2 study testing Idebenone in people with MELAS Syndrome, run by Michio Hirano at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The purpose of this study is to compare the efficacy of two (2) different doses of idebenone with that of a placebo over a one month period on cerebral lactate concentration as measured by magnetic resonance spectroscopy. Read more about this study

Who is it for?
Ages 8 to 65 years
Conditions the study is for
MELAS Syndrome
What is being tested?
Idebenone
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
27 participants
Where
1 siteUnited States
Study dates
May 2009to Jul 2012
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 8 to 65 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Diagnosis of MELAS with confirmed A3243G mtDNA mutation, or evidence of central nervous system involvement (cognitive problems, migraines, memory loss)
  • Cerebral lactate level equal to or greater than 5.0 i.u. at baseline
  • Patients at least 8 and < 65 years of age at baseline
  • Patients with a body weight > 37 kg/82 lbs at baseline
  • Stable co-medication/vitamins/supplements within 1 month prior to baseline
  • Patients who in the opinion of the investigator are able to comply with the requirements of the study, including swallowing the study medication
  • Negative urine pregnancy test at screening and baseline (female patients of childbearing potential)

Who cannot join

  • Contraindication to MRS (e.g. metal implant, claustrophobia)
  • Stroke like event within 2 months prior to baseline
  • Treatment with idebenone at any dose, or coenzyme Q10 at doses above 100mg/d within 1 month prior to baseline
  • Inadequate contraception use
  • Pregnancy and/or breast-feeding
  • Clinically significant abnormalities of clinical hematology or biochemistry including, but not limited to, elevations greater than 1.5 times the upper limit of normal of aspartate aminotransferase (AST), alanine aminotransferase (ALT) or creatinine
Show all 9Show fewer
  • Current abuse of drugs or alcohol
  • Participation in a trial of another investigational drug within the last month
  • Other factor that, in the investigator's opinion, excludes the patient from entering the study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Columbia University Medical Center

    New York, New York, 10032

Other trials in United States

About this study

Official title: A Phase IIa Double-Blind, Randomized, Placebo-Controlled, Dose-Finding Study of Idebenone in the Treatment of Mitochondrial Encephalopathy Lactic Acidosis and Stroke-like Episodes

The purpose of this study is to compare the efficacy of two (2) different doses of idebenone with that of a placebo over a one month period on cerebral lactate concentration as measured by magnetic resonance spectroscopy.

Read the detailed description

MELAS (Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-Like Episodes), a progressive and often devastating multisystem disorder, is most commonly associated with mitochondrial Deoxyribonucleic acid (mtDNA) point mutation at nucleotide 3243. Seizures, cognitive deterioration, and neurobehavioral abnormalities are frequent features of this disease which typically shortens life expectancy. Idebenone, an ATP production modulator and antioxidant, improves neurological function in Friedreich's ataxia, a disease also associated with mitochondrial dysfunction.

Given that there is no effective treatment for MELAS, the investigators propose a Phase II proof of concept trial of idebenone to study its preliminary efficacy in patients with MELAS and the A3243G mtDNA mutation, and to study its safety and tolerability in this patient group.

The investigators propose to evaluate 21 patients with the A3243G mitochondrial DNA mutation and MELAS (defined by a history of either seizures or stroke). Patients will receive idebenone (900 mg/day or 2250 mg/day) or matching placebo for one month. The primary outcome measure is cerebral lactate levels measured by Magnetic Resonance Spectroscopy (MRS), a biomarker associated with disease worsening. This study will help the investigators to determine if there is sufficient signal to proceed to efficacy studies. Also it will provide additional information on the safety and tolerability of two different doses of idebenone in MELAS.

Conditions
MELAS Syndrome
Being tested
Idebenone, Placebo
Medical subject headings
MELAS Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • IdebenoneDrug

    Also called active drug

    900 mg/day for 1 month

  • IdebenoneDrug

    Also called active drug

    2250 mg/day for 1 month

  • PlaceboOther

    Also called No active drug

    Placebo - No idebenone

Study groups in NCT00887562
Study groupRoleWhat they receive
Idebenone 900 mg/dayExperimentalIdebenone 900 mg/day
Receives: Drug: Idebenone
Idebenone 2250 mg/dayExperimentalIdebenone 2250 mg/day
Receives: Drug: Idebenone
placeboPlacebo comparatorPlacebo
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Change in Cerebral Lactate Concentration (as Measured by Magnetic Resonance Spectroscopy)

    To compare the efficacy of 1 month treatment with 2 different doses of idebenone with that of placebo on cerebral lactate concentration as measured by magnetic resonance spectroscopy (MRS)

    Measured: Up to 4 weeks from baseline

Secondary outcomes (2)
  1. Mean Change in Venous Lactate Concentration

    To compare the efficacy of 1 month treatment with 2 different doses of idebenone with that of placebo on venous lactate concentration

    Measured: Up to 4 weeks from baseline

  2. Mean Change in Score on the Fatigue Severity Scale (FSS)

    To assess changes following 1 month treatment with 2 different doses of idebenone with that of placebo in fatigue as assessed by the Fatigue Severity Scale (FSS).

    Scale score minimum is 9 (least fatigue) and maximum is 63 (maximum fatigue). Scores of 36 or less indicate possibility that patient may not be suffering from fatigue, while scores 36 and over suggest suffering from fatigue

    Measured: Baseline and Week 4

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Apr 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionJul 2012
  4. Study completionJul 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00887562
Sponsor's protocol ID
AAAC9240
Other IDs
SNT-II-007
Acronym
MELAS
Status last verified
Sep 2016
First submitted
23 Apr 2009
Last updated
26 Oct 2016
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Idebenone in people with MELAS Syndrome, run by Michio Hirano at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Oct 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Aug 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Change in Cerebral Lactate Concentration (as Measured by Magnetic Resonance Spectroscopy) (time frame: Up to 4 weeks from baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Oct 2016.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in