Clinical Trial: Efficacy of Albuterol in the Treatment of Congenital Myasthenic Syndromes

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: Efficacy of Albuterol in the Treatment of Congenital Myasthenic Syndromes

Brief Summary: The study tests the notion that patients suffering from certain types of congenital myasthenic syndromes are benefitted by the use of Albuterol at doses used in clinical practice.

Detailed Summary:

The aim of the proposal is to evaluate the effects of albuterol, an adrenergic agonist, in the treatment of congenital myasthenic syndromes (CMS). Over the past 2 decades I found that some CMS patients refractory to or worsened by cholinergic agonists, namely those suffering from defects in acetylcholinesterase (AChE) or Dok-7, respond to ephedrine, a medication used for over half-a-century in the treatment of autoimmune myasthenia gravis. After ephedrine became unavailable, I treated the same type of patients with albuterol in doses ranging from 4 mg daily to twice daily for adults; the dose for children 6 to 12 years is 2 mg two or three times daily; the dose for children 2 to 6 years is 0.1 mg/kg/day (maximum 2 mg) three times daily. Evaluation of the effects of the medications are based on the Table shown below.

Name:

Mayo Clinic no:

Date of this report: (dd/mm/yyyy):

Before taking Albuterol ER On Albuterol (date of this report)

  • Current daily dose of albuterol:

Dates when started (d/m/year) Daily dose Distance in feet walked without stopping to rest Number of steps climbed without stopping to rest Difficult to sit up from lying on back* Difficult to rise from sitting* Difficult to speak or swallow* Shortness of breath on exertion* Shortness of breath at night* Weakness of arm or hand muscles * Weakness of leg or foot muscles*

*Rate as mild, moderate, severe Describe below any additional changes in your condition such as arm elevation time, number of deep knee bends before having to stop, or in activities of daily living relevant to the
Sponsor: Mayo Clinic

Current Primary Outcome: Name: Efficacy of albuterol in the treatment of congenital myasthenic syndromes [ Time Frame: 3 years ]

The primary outcome measures pertain to evaluating the improvement in the patient's strength


Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Mayo Clinic

Dates:
Date Received: September 15, 2010
Date Started: September 2010
Date Completion:
Last Updated: December 31, 2015
Last Verified: December 2015