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.
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.
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.
- Conditions
- Amyotrophic Lateral Sclerosis
- 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 group | Role | What they receive |
|---|---|---|
| Crossover group 1 | Experimental | Vitamin E first and placebo second Receives: Dietary Supplement: Vitamin E |
| Crossover group 2 | Experimental | Placebo 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.
Reduction in number of muscle cramps experienced in a two week period.
Measured: 4 weeks
Secondary outcomes (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.
- First posted7 Sep 2006 (estimated)
- Study startDec 2006
- Primary completionAug 2010
- Study completionAug 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Amyotrophic Lateral SclerosisStudies of the same condition, open and under way.
- More trials run by London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph'sThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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)
Sponsor and investigators
- Lead sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Michael Strong, London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
- Investigators
- Michael J Strong, MD, FRCPC, Principal investigator, Clinical Neurological Sciences, London Health Sciences CentreChristen L Shoesmith, MD, FRCPC, Study director, Clinical Neurological Sciences, London Health Sciences Centre
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
Study at a glance
From the registry record, last updated by the sponsor on 3 Mar 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Randomized Crossover Design Trial of Vitamin E vs Placebo for Treatment of Cramps in Amyotrophic Lateral Sclerosis.
- ClinicalTrials.gov ID
- NCT00372879
- Acronym / sponsor ID
- R-06-451
- Conditions
- Amyotrophic Lateral Sclerosis
- Keywords
- amyotrophic lateral sclerosis, vitamin E, muscle cramp
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 32 participants (actual)
- Lead sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph'sUniversity, hospital or other
- Study start
- Dec 2006
- Primary completion
- Aug 2010 (actual)
- Study completion
- Aug 2010 (actual)
- First posted
- 7 Sep 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Crossover group 1 | Experimental | Dietary Supplement: Vitamin EVitamin E first and placebo second |
| Crossover group 2 | Experimental | Dietary Supplement: Vitamin EPlacebo first then vitamin E |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- 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.
Key exclusion criteria (3 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Vitamin EVitamin E 800IU bid | Dietary supplement | Crossover group 1, Crossover group 2 |
Primary outcome
Reduction in number of muscle cramps experienced in a two week period.
Time frame: 4 weeks
1 secondary outcome
Reduction in the duration of cramps and reduction in the severity of cramps
Time frame: 4 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Mar 2016.
- Derived from this study: PubMed 37311173Steele 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.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Michael J Strong, MD, FRCPC principal investigator
Clinical Neurological Sciences, London Health Sciences Centre
Christen L Shoesmith, MD, FRCPC study director
Clinical Neurological Sciences, London Health Sciences Centre
1 site in 1 country: see every site and its status.
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.