About this trial
10-20% of patients with ALS have anti-NRIP autoantibody and the titer of anti-NRIP autoantibody is correlated with motor functional decline and mortality in ALS. The PALADIN2 clinical trial is a single arm study, which intends to enroll 20 ALS patients having anti-NRIP autoantibody in plasma. Patients will receive 3 courses of plasmapheresis per 3 months in order to maintain low concentration of anti-NRIP autoantibody in plasma. The study will follow up these patients for another 6 months after plasmapheresis. This project will potentially confirm the efficacy and safety of plasmapheresis for ALS patients having anti-NRIP autoantibody.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
ALS patients above 20-year-old who have anti-NRIP autoantibody in plasma
Agree to receive plasmapheresis treatment
Agree to participate in the study and receive serial examinations
Disqualifiers
Under permanent ventilator support
Cannot receive plasmapheresis treatment or serial examinations
Under pregnancy
Blood fibrinogen level below 50 mg/dl
Trial design
Single group
Treatments tested in this trial
plasmapheresis
DeviceUsing plasmapheresis to remove plasma anti-NRIP autoantibody; each patient receive 3 courses of plasmapheresis with 3 months apart
Treatment groups
Trial outcomes
Primary outcomes
Change in disease progression rates measuring using ALSFRS-R (Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised)
Difference between \[(ALSFRS-R at month -3 - ALSFRS-R at month 0)/3\] and \[(ALSFRS-R at month 0 - ALSFRS-R at month 9)/9\]; Months -3 to 0 vs. Months 0 to 9; the higher above ratio means higher disease progression rate
Secondary outcomes
Change in disease progression rates measuring using ALSFRS-R (Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised)
Difference between \[(ALSFRS-R at month -3 - ALSFRS-R at month 0)/3\] and \[(ALSFRS-R at month 0 - ALSFRS-R at month 12)/12\]; Months -3 to 0 vs. Months 0 to 12; the higher above ratio means higher disease progression rate
Change in disease progression rates measuring using ALSFRS-R (Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised)
Difference between \[(ALSFRS-R at month -3 - ALSFRS-R at month 0)/3\] and \[(ALSFRS-R at month 0 - ALSFRS-R at month 3)/3\]; Months -3 to 0 vs. Months 0 to 3; the higher above ratio means higher disease progression rate
Change in disease severity measuring using ALSFRS-R (Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised)
The ALSFRS-R at months 3, 6, 9,12 as compared to that at month 0; the lower the AFSFRS-R, the worse disease severity
Change in disease progression rates measuring using MRC (Medical Research Council score) mega-score
Difference between \[(MRC mega-score at month -3 - MRC mega-score at month 0)/3\] and \[(MRC mega-score at month 0 - MRC mega-score at month 12)/12\]; Months -3 to 0 vs. Months 0 to 12; the higher above ratio means higher disease progression rate
Locations
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Sponsors and contacts
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