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Myasthenia GravisPhase 3NCT00285350

Mycophenolate Mofetil in Myasthenia Gravis

A Phase 3 study testing mycophenolate mofetil in people with Myasthenia Gravis, run by FDA Office of Orphan Products Development.

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

This is a prospective, multi-center, double-blind, placebo-controlled trial to determine the efficacy and safety of mycophenolate mofetil (MM) in combination with prednisone as the initial form of immunosuppression in patients with acquired myasthenia gravis (MG). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Myasthenia Gravis
What is being tested?
mycophenolate mofetil
How many people
80 participants
Where
No sites listed yet
Study dates
Sep 2002to Mar 2007
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

  • Acquired generalized MG diagnosed by one of the Principal Investigators based on:
  • Examination by site PI showing myasthenic weakness that is not limited to the ocular or peri-ocular muscles.
  • Elevated acetylcholine receptor antibodies.
  • Positive edrophonium chloride test or abnormal neuromuscular transmission demonstrated by single fiber EMG or repetitive nerve stimulation.
  • Aged at least 18.
  • Able to give informed consent.
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  • Taking a constant dose of Mestinon for at least 2 weeks.
  • Symptom severity that would, in the judgment of the site investigator, justify initiation of immunosuppressive treatment.
  • Able and willing to comply with study requirements.

Who cannot join

  • Thymoma now or in the past.
  • Plasma exchange or IVIG treatment within 90 days of randomization.
  • Treatment with azathioprine, cyclosporine, mycophenolate mofetil, or other immunosuppressive medication since onset of MG. Treatment with prednisone or other corticosteroids within the previous 90 days.
  • Exception: patients may have taken doses of these immunosuppressant medications that are judged by the Principal Investigator to have been clinically insignificant, i.e. unlikely to produce improvement in MG.
  • Women of childbearing potential who are pregnant, breast-feeding or not practicing effective contraception.
  • Renal failure, active thyroid or hepatocellular disease, chronic infection, poorly controlled cardiac disease, or any other illness, including psychiatric disease, that would, in the opinion of the treating physician, make it unsafe for the patient to participate or would interfere with the interpretation of study results.
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  • Weakness affecting only ocular or peri-ocular muscles (Myasthenia Gravis Foundation of America Class I).
  • Severe weakness predominantly affecting oropharyngeal, respiratory muscles or both (MGFA Class IVB).
  • Crisis or impending crisis (defined as FVC <10ml/Kg or bulbar weakness severe enough to compromise airway protection.)
  • Hemoglobin <10mg/dl; WBC <3,500.
  • History of non-compliance with treatment and office visits.
  • Thymectomy within 12 months before randomization.
  • Concurrent medical condition that would pose an unacceptable risk from immunosuppression, including a positive skin test for tuberculosis (PPD), unless the patient has previously received appropriate treatment.

About this study

Official title: A Trial of Mycophenolate Mofetil in Myasthenia Gravis

This is a prospective, multi-center, double-blind, placebo-controlled trial to determine the efficacy and safety of mycophenolate mofetil (MM) in combination with prednisone as the initial form of immunosuppression in patients with acquired myasthenia gravis (MG).

Read the detailed description

80 patients with seropositive MG at 18 academic centers will be randomized to 3 months of treatment with 2.5 gm MM/day (1,250 mg q 12 hours, +/- 2 hours) plus 20 mg prednisone/day versus placebo plus 20 mg/day prednisone. The primary measure of efficacy will be the change from baseline in Quantitative MG (QMG) score at the end of 3 months. Secondary outcome measures include survival analysis for treatment failure, MG-related impairment of daily activities, functional assessment, manual muscle testing, SF-36 Health Status, and serum concentration of antibodies to the acetylcholine receptor. Study completers will have the option of taking open-label MM for an additional 6 months, during which prednisone will be reduced to the lowest dose necessary to maintain the optimum clinical response.

Keywords
myasthenia gravis
Medical subject headings
Myasthenia Gravis

What participants receive

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

What is being measured

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

  1. QMGS

Secondary outcomes (1)
  1. Multiple

Timeline

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

  1. First posted2 Feb 2006 (estimated)
  2. Study startSep 2002
  3. Study completionMar 2007

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
Parallel groups
Masking
Double blind
Enrolment
80 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00285350
Sponsor's protocol ID
2154
Status last verified
Mar 2007
First submitted
31 Jan 2006
Last updated
25 Mar 2015
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing mycophenolate mofetil in people with Myasthenia Gravis, run by FDA Office of Orphan Products Development.

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 9 inclusion and 13 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 25 Mar 2015. Status can change between updates, so confirm with the study contact before making plans.

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?

QMGS. 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 25 Mar 2015.

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