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Amyotrophic Lateral SclerosisPhase 3NCT00372879

Clinical Trial of Vitamin E to Treat Muscular Cramps in Patients With ALS

A Phase 3 study testing Vitamin E in people with Amyotrophic Lateral Sclerosis, run by London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's at 1 site in Canada.

Completed

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

Official record
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Trial summary

Muscular cramps are a common and uncomfortable symptom of amyotrophic lateral sclerosis (ALS). This clinical trial will compare the response of high dose vitamin E supplementation to placebo for treatment of muscular cramps in patients with ALS. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Amyotrophic Lateral Sclerosis
What is being tested?
Vitamin E
Could I receive a placebo?
No, everyone receives an active treatment
How many people
32 participants
Where
1 siteCanada
Study dates
Dec 2006to Aug 2010
Phase
Phase 3
Are there results?
None posted in the registry

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults (> age 18 years)
  • Probable or definite ALS by El Escorial Revised criteria
  • At least 2 painful muscle cramps in one or more of the limbs per week.
  • May have tried other medications for cramping in the past.
  • If participants are currently on treatment for cramps and are continuing to have at least 2 cramps per week, they can be included in the trial. In this situation, the individual's previous cramp medication can be continued during the trial.
  • Ideally, patients should not have any medication alterations during the duration of the trial.
  • Willing to discontinue supplementary vitamin E and multivitamins containing > 400 IU of vitamin E during the trial.

Who cannot join

  • Patients who are unable to safely consume the trial capsules. Individuals with significant dysphagia can be included into the study if they have a functioning PEG tube or GJ tube, through which the medication can be given.
  • Patients who are unable to fill out the daily diary, either personally or via a proxy.
  • Patients who have had medication changes within the last 4 weeks prior to the onset of the trial will be excluded.

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • London Health Sciences Centre

    London, Ontario, N6A 5A5

Other trials in Canada

About this study

Official title: Randomized Crossover Design Trial of Vitamin E vs Placebo for Treatment of Cramps in Amyotrophic Lateral Sclerosis.

Muscular cramps are a common and uncomfortable symptom of amyotrophic lateral sclerosis (ALS). This clinical trial will compare the response of high dose vitamin E supplementation to placebo for treatment of muscular cramps in patients with ALS. We hypothesize that vitamin E will be more effective than placebo in treating cramps.

Read the detailed description

This will be a single centre randomized placebo controlled crossover design trial. Participants will be randomized at study entry to protocol A (vitamin E first) or protocol B (placebo first). The first 2 weeks of the study will be a baseline assessment of the frequency, severity and duration of cramps. Patients will be blinded for the remainder of the duration of the study. For weeks 3-6 of the study, group A will receive vitamin E 800 IU bid and group B will receive placebo. For weeks 7-10 of the study, group A will receive placebo and group B will receive vitamin E. Participants will record cramp frequency and characteristics via a daily journal for the duration of the study, however the data analysis will focus on cramp frequency only during weeks 5-6 and 9-10. Weeks 3-4 and 7-8 will be used as time periods to allow the new drug to come to steady state and allow for washout of the previous drug. Data analysis will focus on the difference in cramp frequency in individual patients in each treatment period.

Being tested
Vitamin E
Keywords
amyotrophic lateral sclerosis, vitamin E, muscle cramp
Medical subject headings
Amyotrophic Lateral Sclerosis, Muscle Cramp

What participants receive

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

  • Vitamin EDietary supplement

    Vitamin E 800IU bid

Study groups in NCT00372879
Study groupRoleWhat they receive
Crossover group 1ExperimentalVitamin E first and placebo second
Receives: Dietary Supplement: Vitamin E
Crossover group 2ExperimentalPlacebo first then vitamin E
Receives: Dietary Supplement: Vitamin E

What is being measured

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

  1. Reduction in number of muscle cramps experienced in a two week period.

    Measured: 4 weeks

Secondary outcomes (1)
  1. Reduction in the duration of cramps and reduction in the severity of cramps

    Measured: 4 weeks

Timeline

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

  1. First posted7 Sep 2006 (estimated)
  2. Study startDec 2006
  3. Primary completionAug 2010
  4. Study completionAug 2010

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00372879
Sponsor's protocol ID
R-06-451
Other IDs
ALSClin-001
Status last verified
Mar 2016
First submitted
5 Sep 2006
Last updated
3 Mar 2016
Results posted
No
Data monitoring committee
No

Publications

  • Steele DW, Adam GP, Saldanha IJ, Kanaan G, Zahradnik ML, Danilack-Fekete VA, Stuebe AM, Peahl AF, Chen KK, Balk EM. Postpartum Home Blood Pressure Monitoring: A Systematic Review. Obstet Gynecol. 2023 Aug 1;142(2):285-295. doi: 10.1097/AOG.0000000000005270. Epub 2023 Jun 13.

    PubMed 37311173

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Vitamin E in people with Amyotrophic Lateral Sclerosis, run by London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's at 1 site in Canada.

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 3 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 3 Mar 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 Canada. 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. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Reduction in number of muscle cramps experienced in a two week period. (time frame: 4 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00372879, which also lists 1 linked publication.

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 3 Mar 2016.

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