The Efficacy and Safety of Leflunomide or Azathioprine Therapy in Myasthenia Gravis Patients After Expand Thymectomy
This is a randomized controlled clinical study. The investigators screen of eligible patients, randomized divide into the following two groups: corticosteroids + azathioprine group, corticosteroids + leflunomide group. The investigators treat the enrolled patients, estimate efficacy and observed the side effects according to the requirements of program. The investigators establish a clinical database for recording patients date and statistical analysis. Evaluation of short-term and long-term efficacy of thymectomized myasthenia gravis patients in the different group prove that what kind of treatment can improve the cure rate. The investigators will evaluate the acute toxicity (gastrointestinal side effects, liver and kidney dysfunction) and long-term toxicity (immune dysfunction, gonadal suppression) when the investigators apply these therapy in the treatment of different clinical types of MG.
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
- the percent of achieving good response [ Time Frame: 48 weeks ] [ Designated as safety issue: Yes ]
- level of the AChR-Ab [ Time Frame: 48 weeks ] [ Designated as safety issue: Yes ]
|Study Start Date:||September 2012|
|Estimated Study Completion Date:||September 2015|
|Estimated Primary Completion Date:||September 2014 (Final data collection date for primary outcome measure)|
Active Comparator: Azathioprine
cholinesterase inhibitors+Glucocorticoid +Azathioprine
The basic therapy of each group is cholinesterase inhibitors (pyridostigmine 36mg / kg / d). Group 1 glucocorticoid + Azathioprine: Glucocorticoid (0.25mg/kg/d )plus Azathioprine at a starting dose of 50mg/d for 14 days, then increase up to 2mg/kg in 2 weeks.If no adverse events occurred , maintain the dose until 48 weeks.
Active Comparator: Leflunomide
The basic therapy of each group is cholinesterase inhibitors (pyridostigmine 36mg / kg / d). Group 2 glucocorticoid + Leflunomide: Glucocorticoid (0.25mg/kg/d )plus Leflunomide 20mg/d for adult, 10mg/d for child. if no adverse events occurred , maintain the dose until 48 weeks.
|Contact: Liu Wei bin, dean||086-020-87755766 ext firstname.lastname@example.org|
|the first affiliated hospital,SUN YAT-SEN UNIVERSITY||Recruiting|
|GuangZhou, Guangdong, China, 510000|
|Contact: Liu Wei bin, dean 086-020-887755766 ext 8281 email@example.com|
|Principal Investigator: Liu Wei bin, dean|