ClinicalTrials.gg
CompletedNCT00537680IONIAUpdated Jul 11, 2023Results posted

Study to Assess the Efficacy, Safety and Tolerability of Idebenone in the Treatment of Friedreich's Ataxia

A Phase 3 interventional study of Idebenone and Idebenone in Friedreich's Ataxia, sponsored by Santhera Pharmaceuticals. Completed at 2 sites in United States. Open to participants aged 8 Years to 17 Years. Per ClinicalTrials.gov, last updated 2023-07-11.

Sponsored by Santhera Pharmaceuticals · Phase 3, Interventional, and Treatment

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Phase
Phase 3
Study type
Interventional
Enrollment
70
Allocation
Randomized
Ages
8 Years to 17 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 71 studies in Friedreich Ataxia with a site in United States — 18 open to participants now, 25 under way, 4 of them phase 3. Friedreich Ataxia · United States.

Enrollment
11th of 49
70 · median 32
Started
2007
the only one that year
Phase 3
10 of 71
2 open now
Registered
5th of 71
by date

Among the 71 studies in Friedreich Ataxia with a site in United States, this one is the 11th largest by enrollment of the 49 interventional ones that give a count, is the only one that started in 2007, is one of 10 in phase 3, and was the 5th registered.

Friedreich Ataxia

111 studies on the registry are indexed under Friedreich Ataxia; 28 are open to participants now.

Browse Friedreich Ataxia studies →

Open to participants now

18 of the 71 studies in Friedreich Ataxia with a site in United States are open now. Recruiting first, the newest first:

13 more — sign in →

All 18 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 18 Friedreich Ataxia studies recruiting now, 9 (50%) set no upper age limit and 9 (50%) stop at 75 or younger; 15 take children under 18; 3 take healthy volunteers.

This study: 8 Years to 17 Years · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 71 studies in Friedreich Ataxia with a site in United States, or all of them as a file.
02

Study summary

This study is meant to assess the effectiveness of idebenone on neurological outcome measures in patients with Friedreich's Ataxia over a 6 months period.

Read the detailed description

The study involves 6 clinic visits and upon completion the possibility to join a 12 months extension study where all patients will receive high dose Idebenone.

03

Conditions studied

  • Friedreich's Ataxia

Browse trials for

Keywords

  • Friedreich's Ataxia
  • Idebenone
  • ICARS
04

Who can participate

Ages eligible
8 Years to 17 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Documented diagnosis of Friedreich's Ataxia (FRDA) with confirmed FRDA mutations
  • Patients 8 - 17 years of age at baseline
  • Patients with a body weight greater than 25 kg/55 lbs at baseline
  • Patients able to walk at least 10 meters without accompanying person (ICARS Walking Capacities score ≤6) at screening and 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 )

Exclusion criteria

Exclusion criteria:

  • Treatment with idebenone, Coenzyme Q10 or vitamin E (if taken at a dose 5 times above the daily requirement) within the past month
  • Patients with International Cooperative Ataxia Rating Scale (ICARS) score of greater than 54 or less than 10 at screening
  • Pregnancy and/or breast-feeding
  • abnormalities of clinical hematology or biochemistry including, but not limited to, elevations greater than 1.5 times the of (AST; also known as GOT), Alanine Aminotransferase (ALT; also known as GPT) or creatinine
  • History of abuse of drugs or alcohol
  • Participation in the previous (Phase II) study of idebenone at the National Institutes of Health (NIH)
  • Participation in a trial of another drug within the last 3 months
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
70 participants (actual)

Study arms

  • Experimental
    Arm 1 - 900 mg/day Idebenone

    mid dose Idebenone

    Drug: Idebenone

  • Experimental
    Arm 2 - up to 2250 mg/day Idebenone

    high dose Idebenone

    Drug: Idebenone

  • Placebo comparator
    Arm 3 - Placebo

    Placebo

    Drug: Placebo

Interventions

  • Patients ≤ 45 kg/99 lbs: idebenone 450 mg/day; Patients \> 45 kg/99 lbs: idebenone 900 mg/day

  • Patients ≤ 45 kg/99 lbs: idebenone 1350 mg/day; Patients \> 45 kg/99 lbs: idebenone 2250 mg/day

  • DrugPlacebo

    Placebo was provided as film-coated tablets that were the same size, weight and appearance as the idebenone tablets.

06

What researchers measure

Primary outcomes

  1. Change in the International Cooperative Ataxia Rating Scale (ICARS) From Baseline Assessment to Week 24

    International Cooperative Ataxia Rating Scale (ICARS): ICARS consists of a one-hundred-point semi-quantitative scale based upon 19 simple testing manoeuvres compartmentalized into postural and stance disorders, limb ataxia, dysarthria and oculomotor disorders and has been previously used in this patient population with good inter-rater reliability. Minimum score: 0, maximum score 100, higher score indicates greater impairment Calculation details: ICARS score at week 24 minus ICARS score baseline

    Time frame: baseline and 6 months

Secondary outcomes

  1. Change in Friedreich's Ataxia Rating Scale (FARS) Scores From Baseline to Week 24

    To compare the efficacy of 6 months' treatment with 2 different doses of idebenone with that of placebo on neurological function as assessed by the Friedreich's Ataxia Rating Scale (FARS) FARS consists of a 25 manoeuvre exam along with 4 quantitative performance measures. The neurological exam covers bulbar function, upper limb coordination, lower limb coordination, peripheral nervous system function, deep tendon reflexes, stability and gait. The use of FARS has been recently validated as a sensitive scale for this population. The FARS exam scores can be added to make a total score ranging from 0 to 159. A higher score indicates a greater level of disability. Calculation details FARS score at week 24 minus FARS score baseline

    Time frame: baseline and 6 months

  2. Activities of Daily Living (ADL) of Friedreich's Ataxia Rating Scale (FARS), Change in ADL (Total Score ) From Baseline to Week 24

    To compare the efficacy of 6 months' treatment with 2 different doses of idebenone with that of placebo on Activities of Daily Living (ADL) assessed by the ADL scale of the Friedreich's Ataxia Rating Scale (FARS) score 0 to 36, higher score indicates greater impairment

    Time frame: baseline and 6 months

  3. Change in the International Cooperative Ataxia Rating Scale (ICARS) From Baseline Assessment to Week 12

    To compare the efficacy of 3 months' treatment with 2 different doses of idebenone with that of placebo on neurological impairment as assessed by the International Cooperative Ataxia Rating Scale (ICARS) International Cooperative Ataxia Rating Scale (ICARS): ICARS consists of a one-hundred-point semi-quantitative scale based upon 19 simple testing manoeuvres compartmentalized into postural and stance disorders, limb ataxia, dysarthria and oculomotor disorders and has been previously used in this patient population with good inter-rater reliability. Minimum score: 0, maximum score 100, higher score indicates greater impairment Calculation details: ICARS score at week 12 minus ICARS score baseline

    Time frame: baseline and 12 weeks

  4. Absolute Change From Baseline to Week 24 in the Relative Wall Thickness (RWT) of the Left Ventricle

    To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

    Time frame: baseline and 6 months

  5. Percent Change From Baseline to Week 24 in the Relative Wall Thickness (RWT) of the Left Ventricle

    To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

    Time frame: baseline and 6 months

  6. Absolute Change From Baseline to Week 24 in Left Ventricular Mass Index (LVMI)

    To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

    Time frame: baseline and 6 months

  7. Percent Change From Baseline to Week 24 in Left Ventricular Mass Index

    To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

    Time frame: baseline and 6 months

  8. Absolute Change From Baseline to Week 24 in the Thickness of the Posterior Wall (PW) of the Left Ventricle

    To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

    Time frame: baseline and 6 months

  9. Percent Change From Baseline to Week 24 in the Thickness of the Posterior Wall (PW) of the Left Ventricle

    To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

    Time frame: baseline and 6 months

  10. Absolute Change From Baseline to Week 24 in the Thickness of the Interventricular Septum (IVS)

    To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

    Time frame: baseline and 6 months

  11. Percent Change From Baseline to Week 24 in the Thickness of the Interventricular Septum (IVS)

    To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

    Time frame: baseline and 24 weeks

07

Results

Posted Dec 29, 2011

Participant flow

Participant flow — Overall Study
MilestoneMid Dose IdebenoneHigh Dose IdebenonePlacebo
Started222424
Completed222224
Not completed020

Outcome measures

PrimaryChange in the International Cooperative Ataxia Rating Scale (ICARS) From Baseline Assessment to Week 24

International Cooperative Ataxia Rating Scale (ICARS): ICARS consists of a one-hundred-point semi-quantitative scale based upon 19 simple testing manoeuvres compartmentalized into postural and stance disorders, limb ataxia, dysarthria and oculomotor disorders and has been previously used in this patient population with good inter-rater reliability. Minimum score: 0, maximum score 100, higher score indicates greater impairment Calculation details: ICARS score at week 24 minus ICARS score baseline

Time frame:
baseline and 6 months
Reported as:
Mean · ICARS points
Change in the International Cooperative Ataxia Rating Scale (ICARS) From Baseline Assessment to Week 24
ICARS pointsMid Dose IdebenoneHigh Dose IdebenonePlacebo
Change in the International Cooperative Ataxia Rating Scale (ICARS) From Baseline Assessment to Week 24-2.5 ± 6.3-2.4 ± 4.8-1.3 ± 4.4
SecondaryChange in Friedreich's Ataxia Rating Scale (FARS) Scores From Baseline to Week 24

To compare the efficacy of 6 months' treatment with 2 different doses of idebenone with that of placebo on neurological function as assessed by the Friedreich's Ataxia Rating Scale (FARS) FARS consists of a 25 manoeuvre exam along with 4 quantitative performance measures. The neurological exam covers bulbar function, upper limb coordination, lower limb coordination, peripheral nervous system function, deep tendon reflexes, stability and gait. The use of FARS has been recently validated as a sensitive scale for this population. The FARS exam scores can be added to make a total score ranging from 0 to 159. A higher score indicates a greater level of disability. Calculation details FARS score at week 24 minus FARS score baseline

Time frame:
baseline and 6 months
Reported as:
Mean · FARS score
Change in Friedreich's Ataxia Rating Scale (FARS) Scores From Baseline to Week 24
FARS scoreMid Dose IdebenoneHigh Dose IdebenonePlacebo
Change in Friedreich's Ataxia Rating Scale (FARS) Scores From Baseline to Week 24-1.6 ± 6.52-1.2 ± 4.530.6 ± 5.91
SecondaryActivities of Daily Living (ADL) of Friedreich's Ataxia Rating Scale (FARS), Change in ADL (Total Score ) From Baseline to Week 24

To compare the efficacy of 6 months' treatment with 2 different doses of idebenone with that of placebo on Activities of Daily Living (ADL) assessed by the ADL scale of the Friedreich's Ataxia Rating Scale (FARS) score 0 to 36, higher score indicates greater impairment

Time frame:
baseline and 6 months
Reported as:
Mean · ADL points
Activities of Daily Living (ADL) of Friedreich's Ataxia Rating Scale (FARS), Change in ADL (Total Score ) From Baseline to Week 24
ADL pointsMid Dose IdebenoneHigh Dose IdebenonePlacebo
Activities of Daily Living (ADL) of Friedreich's Ataxia Rating Scale (FARS), Change in ADL (Total Score ) From Baseline to Week 240.2 ± 2.450.6 ± 3.131.0 ± 2.97
SecondaryChange in the International Cooperative Ataxia Rating Scale (ICARS) From Baseline Assessment to Week 12

To compare the efficacy of 3 months' treatment with 2 different doses of idebenone with that of placebo on neurological impairment as assessed by the International Cooperative Ataxia Rating Scale (ICARS) International Cooperative Ataxia Rating Scale (ICARS): ICARS consists of a one-hundred-point semi-quantitative scale based upon 19 simple testing manoeuvres compartmentalized into postural and stance disorders, limb ataxia, dysarthria and oculomotor disorders and has been previously used in this patient population with good inter-rater reliability. Minimum score: 0, maximum score 100, higher score indicates greater impairment Calculation details: ICARS score at week 12 minus ICARS score baseline

Time frame:
baseline and 12 weeks
Reported as:
Mean · ICARS points
Change in the International Cooperative Ataxia Rating Scale (ICARS) From Baseline Assessment to Week 12
ICARS pointsMid Dose IdebenoneHigh Dose IdebenonePlacebo
Change in the International Cooperative Ataxia Rating Scale (ICARS) From Baseline Assessment to Week 12-1.5 ± 5.35-1.6 ± 5.53-3.0 ± 3.52
SecondaryAbsolute Change From Baseline to Week 24 in the Relative Wall Thickness (RWT) of the Left Ventricle

To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

Time frame:
baseline and 6 months
Reported as:
Mean · cm
Absolute Change From Baseline to Week 24 in the Relative Wall Thickness (RWT) of the Left Ventricle
cmMid Dose IdebenoneHigh Dose IdebenonePlacebo
Absolute Change From Baseline to Week 24 in the Relative Wall Thickness (RWT) of the Left Ventricle-0.032 ± 0.0960.007 ± 0.0710.010 ± 0.097
SecondaryPercent Change From Baseline to Week 24 in the Relative Wall Thickness (RWT) of the Left Ventricle

To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

Time frame:
baseline and 6 months
Reported as:
Mean · % change
Percent Change From Baseline to Week 24 in the Relative Wall Thickness (RWT) of the Left Ventricle
% changeMid Dose IdebenoneHigh Dose IdebenonePlacebo
Percent Change From Baseline to Week 24 in the Relative Wall Thickness (RWT) of the Left Ventricle-3.32 ± 15.3001.53 ± 12.5602.65 ± 17.135
SecondaryAbsolute Change From Baseline to Week 24 in Left Ventricular Mass Index (LVMI)

To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

Time frame:
baseline and 6 months
Reported as:
Mean · g/m2
Absolute Change From Baseline to Week 24 in Left Ventricular Mass Index (LVMI)
g/m2Mid Dose IdebenoneHigh Dose IdebenonePlacebo
Absolute Change From Baseline to Week 24 in Left Ventricular Mass Index (LVMI)-3.06 ± 6.23-2.56 ± 4.27-1.26 ± 6.47
SecondaryPercent Change From Baseline to Week 24 in Left Ventricular Mass Index

To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

Time frame:
baseline and 6 months
Reported as:
Mean · % change
Percent Change From Baseline to Week 24 in Left Ventricular Mass Index
% changeMid Dose IdebenoneHigh Dose IdebenonePlacebo
Percent Change From Baseline to Week 24 in Left Ventricular Mass Index-4.5 ± 11.302-4.9 ± 8.713-1.7 ± 12.382
SecondaryAbsolute Change From Baseline to Week 24 in the Thickness of the Posterior Wall (PW) of the Left Ventricle

To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

Time frame:
baseline and 6 months
Reported as:
Mean · cm
Absolute Change From Baseline to Week 24 in the Thickness of the Posterior Wall (PW) of the Left Ventricle
cmMid Dose IdebenoneHigh Dose IdebenonePlacebo
Absolute Change From Baseline to Week 24 in the Thickness of the Posterior Wall (PW) of the Left Ventricle-0.018 ± 0.137-0.004 ± 0.112-0.038 ± 0.153
SecondaryPercent Change From Baseline to Week 24 in the Thickness of the Posterior Wall (PW) of the Left Ventricle

To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

Time frame:
baseline and 6 months
Reported as:
Mean · % change
Percent Change From Baseline to Week 24 in the Thickness of the Posterior Wall (PW) of the Left Ventricle
% changeMid Dose IdebenoneHigh Dose IdebenonePlacebo
Percent Change From Baseline to Week 24 in the Thickness of the Posterior Wall (PW) of the Left Ventricle-0.075 ± 13.3790.12 ± 12.549-3.04 ± 14.651
SecondaryAbsolute Change From Baseline to Week 24 in the Thickness of the Interventricular Septum (IVS)

To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

Time frame:
baseline and 6 months
Reported as:
Mean · cm
Absolute Change From Baseline to Week 24 in the Thickness of the Interventricular Septum (IVS)
cmMid Dose IdebenoneHigh Dose IdebenonePlacebo
Absolute Change From Baseline to Week 24 in the Thickness of the Interventricular Septum (IVS)-0.014 ± 0.19830.021 ± 0.14740.063 ± 0.1952
SecondaryPercent Change From Baseline to Week 24 in the Thickness of the Interventricular Septum (IVS)

To compare the effects of idebenone on cardiac anatomy and function in patients with Friedreich's ataxia (FRDA) as assessed by echocardiography

Time frame:
baseline and 24 weeks
Reported as:
Mean · % change
Percent Change From Baseline to Week 24 in the Thickness of the Interventricular Septum (IVS)
% changeMid Dose IdebenoneHigh Dose IdebenonePlacebo
Percent Change From Baseline to Week 24 in the Thickness of the Interventricular Septum (IVS)1.3 ± 18.1602.6 ± 13.0847.8 ± 19.480

Adverse events

Non-serious events are listed at a 1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Mid Dose Idebenone—0/22 (0%)18/22 (81.8%)
High Dose Idebenone—2/24 (8.3%)23/24 (95.8%)
Placebo—0/24 (0%)21/24 (87.5%)
Most frequent serious events
Most frequent serious events
EventMid Dose IdebenoneHigh Dose IdebenonePlacebo
idiopathic thrombocytopenic purpuraBlood and lymphatic system disorders0/221/240/24
chest painGeneral disorders0/221/240/24
Most frequent other events
Most frequent other events
EventMid Dose IdebenoneHigh Dose IdebenonePlacebo
InfectionsInfections and infestations11/2215/2416/24
Gastrointestinal disordersGastrointestinal disorders8/2215/2412/24
Nervous system disordersNervous system disorders10/2214/2412/24
General disordersGeneral disorders10/229/249/24
Musculoskeletal & connective tissue disordersMusculoskeletal and connective tissue disorders7/2210/247/24

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Mid Dose IdebenoneHigh Dose IdebenonePlaceboTotal
<=18 years22242470
Between 18 and 65 years0000
>=65 years0000
Age, Continuous
Age, Continuous(years)Mid Dose IdebenoneHigh Dose IdebenonePlaceboTotal
Mean13.93 ± 2.5413.44 ± 3.0313.69 ± 2.7713.68 ± 2.76
Sex: Female, Male
Sex: Female, Male(Participants)Mid Dose IdebenoneHigh Dose IdebenonePlaceboTotal
Female7141637
Male1510833
Region of Enrollment
Region of Enrollment(participants)Mid Dose IdebenoneHigh Dose IdebenonePlaceboTotal
United States22242470
08

Study locations

2 sites
  • David Geffen School of Medicine, UCLA
    Los Angeles, California 90095-1769, United States
  • The Children's Hopsital of Philadelphia
    Philadelphia, Pennsylvania 19104, United States
09

References and documents

Publications

  • Meier T, Perlman SL, Rummey C, Coppard NJ, Lynch DR. Assessment of neurological efficacy of idebenone in pediatric patients with Friedreich's ataxia: data from a 6-month controlled study followed by a 12-month open-label extension study. J Neurol. 2012 Feb;259(2):284-91. doi: 10.1007/s00415-011-6174-y. Epub 2011 Jul 22. PubMed 21779958 ↗
  • Lagedrost SJ, Sutton MS, Cohen MS, Satou GM, Kaufman BD, Perlman SL, Rummey C, Meier T, Lynch DR. Idebenone in Friedreich ataxia cardiomyopathy-results from a 6-month phase III study (IONIA). Am Heart J. 2011 Mar;161(3):639-645.e1. doi: 10.1016/j.ahj.2010.10.038. Epub 2011 Jan 31. PubMed 21392622 ↗
  • Lynch DR, Perlman SL, Meier T. A phase 3, double-blind, placebo-controlled trial of idebenone in friedreich ataxia. Arch Neurol. 2010 Aug;67(8):941-7. doi: 10.1001/archneurol.2010.168. PubMed 20697044 ↗
10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Dec 2007, a primary completion of Apr 2009 and a completion of Apr 2009. It does not say whether these dates are actual or estimated.

Results were first posted in Dec 2011, 2 years 8 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 7, 2007
First posted
Oct 1, 2007
Start
Dec 2007
Primary completionActual
Apr 2009
CompletionActual
Apr 2009
Results first posted
Dec 29, 2011
Last update
Jul 11, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 11, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00537680
Responsible party
Sponsor
First posted
Oct 1, 2007
Start date
Dec 2007
Primary completion
Apr 2009
Completion
Apr 2009
Results posted
Dec 29, 2011
Last update
Jul 11, 2023

Study contacts

Susan Perlman, MD
principal investigator · University of California, Los Angeles
David Lynch, MD
principal investigator · Children's Hospital of Philadelphia

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Idebenone

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