Clinical Trials Logo

Clinical Trial Summary

A randomized, double-blind, placebo controlled, crossover intervention study evaluating the effect of pyridostigmine (part 1) and amifampridine (part 2) in Myasthenia Gravis (MG).


Clinical Trial Description

In the first part of the study, patients who are currently using pyridostigmine will be randomly allocated to one of two consecutive treatment periods in which patients either first receive placebo and then their usual dose of pyridostigmine, or vice versa. Each treatment period lasts 5 days with a 2-day wash-out period between each treatment period. Measurements will be performed at every last day of a treatment period (day 5 and day 12). In the second part of the study the effect of two doses of amifampridine as add-on to pyridostigmine will be studied. Patients will be randomly assigned to either one of three treatment sequences; 1) amifampridine 30 mg - amifampridine 60 mg - placebo or 2) amifampridine 60 mg - placebo - amifampridine 30 mg or 3) placebo - amifampridine 30 mg - amifampridine 60 mg. Again, each treatment period consists of 5 days and will be separated by a 2-day wash-out period. Measurements will be performed at every last day of treatment (day 19, day 26 and day 33). Patients will have the option to participate in a substudy to characterize the pharmacokinetics (PK) and pharmacodynamics (PD) of amifampridine in AChR positive MG patients. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05919407
Study type Interventional
Source Leiden University Medical Center
Contact Martijn R. Tannemaat, MD, PhD
Phone +31715262197
Email m.r.tannemaat@lumc.nl
Status Recruiting
Phase Phase 3
Start date March 22, 2023
Completion date September 22, 2024

See also
  Status Clinical Trial Phase
Completed NCT05039190 - Evaluate the Efficacy and Safety of HBM9161(HL161)Subcutaneous Injection in Patients With Generalized MG Patients Phase 3
Recruiting NCT04561557 - Safety and Efficacy of CT103A Cells for Relapsed/Refractory Antibody-associated Inflammatory Diseases of the Nervous System Early Phase 1
Completed NCT01727193 - The Efficacy and Safety of Leflunomide or Azathioprine Therapy in Myasthenia Gravis Patients After Expand Thymectomy Phase 3
Completed NCT00285350 - Mycophenolate Mofetil in Myasthenia Gravis Phase 3
Recruiting NCT05890833 - The Risk of Falls Index for Patients With Neuromuscular Disorders
Completed NCT05694234 - Influences of Sugammadex on Postoperative Progress in Patients With Myasthenia Gravis Undergoing Video-assisted Thoracoscopic Thymectomy: Retrospective Study
Recruiting NCT05635266 - Tissue Repository Providing Annotated Biospecimens for Approved Investigator-directed Biomedical Research Initiatives
Not yet recruiting NCT04965987 - Oxaloacetate in Myasthenia Gravis Phase 1
Not yet recruiting NCT05095103 - Immune Profiles in Myasthenia Gravis
Terminated NCT02102594 - Therapy of Antibody-mediated Autoimmune Diseases by Bortezomib (TAVAB) Phase 2
Completed NCT02066519 - Benefits and Tolerance of Exercise in Patients With Generalized and Stabilized Myasthenia Gravis N/A
Completed NCT02774239 - A Pilot Trial To Assess The Feasibility And Efficacy Of SCIG In Patients With MG Exacerbation (SCIG-MG) Phase 3
Completed NCT02118805 - Innovative Measures of Speech and Swallowing Dysfunction in Neurological Disorders
Terminated NCT01828294 - Subcutaneous Ig Maintenance Therapy for Myasthenia Gravis Phase 1
Terminated NCT00727194 - Safety and Efficacy Study of Eculizumab in Patients With Refractory Generalized Myasthenia Gravis Phase 2
Completed NCT04590716 - Help Build an A.I. Model to Predict Myasthenia Gravis Symptom Patterns and Flares
Recruiting NCT04837625 - Study of Myasthenic Crisis in China
Not yet recruiting NCT01469858 - Perception and Multisensory Integration in Neurological Patients Using fMRI N/A
Completed NCT05408702 - Exercise in Autoimmune Myasthenia Gravis and Myasthenic Syndromes
Completed NCT03205306 - Myasthenia Gravis and Psyche