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Trial · NCT06544499

Registered outcomes29

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryExtent of disease control, defined as the number of cumulative weeks during the 24-week Double-Blinded Treatment Period with platelet counts of at least 50 × 10^9/LUp to 24 weeks
SecondaryProportion of participants achieving platelet counts of at least 50 × 10^9/L for at least 4 of the 6 study visits between study weeks 19 and 24 of the DBTPUp to 6 weeks
SecondaryProportion of participants achieving platelet counts of at least 50 × 10^9/L for at least 6 of the 8 study visits between study weeks 17 and 24 of the DBTPUp to 8 weeks
SecondaryProportion of participants achieving a platelet counts of at least 50 × 10^9/L for at least 8 of the 12 study visits between weeks 13 and 24 of the DBTPUp to 12 weeks
SecondaryProportion of participants achieving a platelet count of at least 50 × 10^9/L on at least 4 occasions at any time until study week 12 during the DBTPUp to 12 weeks
SecondaryTime to response, defined as the time to achieve 2 consecutive platelet counts of at least 50 × 10^9/L at any time during the DBTPup to 24 weeks
SecondaryProportion of participants with an IWG response during the DBTPUp to 24 weeksInternational Working Group (IWG)
SecondaryProportion of participants with initial response, defined as a platelet count of at least 30 × 10^9/L and a 2-fold increase from baseline in platelet count at study week 5 of the DBTPUp to 20 weeks
SecondaryTime to achieve a platelet count of at least 30 × 10^9/L and a 2-fold increase from baseline in platelet count during the DBTPUp to 24 weeks
SecondaryNumber of cumulative weeks during the DBTP with platelet counts of at least 30 × 10^9/L and ≥20 × 10^9/L above baselineUp to 24 weeks
SecondaryNumber of cumulative weeks during the DBTP with platelet counts of at least 30 × 10^9/L and at least 20 × 10^9/L above baseline in participants with baseline platelet counts of <15 × 10^9/LUp to 24 weeks
SecondaryExtent of disease control, defined as the percentage of weeks with platelet counts of at least 50 × 10^9/LUp to 76 weeks
SecondaryIn participants receiving placebo IV in the DBTP, the extent of disease control, defined as the number of cumulative weeks with platelet counts of at least 50 × 10^9/LUp to 76 weeks
Secondary
Overall platelet count response, defined as the proportion of participants achieving a platelet count of at least 50 × 10^9/L on at least 4 occasions during the first 52 weeks of treatment with efgartigimod IV
Up to 52 weeks
SecondaryMean change from baseline in platelet count at each study visitUp to 76 weeks
SecondaryThe percentage of weeks with platelet counts of at least 30 × 10^9/L and at least 20 × 10^9/L above baselineUp to 76 weeks
SecondaryIn participants with baseline platelet counts <15 × 10^9/L, the percentage of weeks with platelet counts of at least 30 × 10^9/L and at least 20 × 10^9/L above baselineUp to 76 weeks
SecondaryProportion of participants who achieve a sustained platelet count response, defined as achieving platelet counts of at least 50 × 10^9/L for at least 4 occasions during 6-week intervalsUp to 76 weeks
Secondary
In participants receiving placebo IV in the DBTP, the proportion of participants achieving platelet counts of at least 50 × 10^9/L for at least 8 of the 12 study visits between weeks 13 and 24 of the OLTP1
Up to 12 weeks
Secondary
In participants receiving placebo IV in the DBTP, proportion of participants who achieve sustained platelet count response, defined as achieving platelet counts of at least 50 × 10^9/L for at least 6 of 8 visits between weeks 17 and 24 of the OLTP1
Up to 8 weeks

Source ClinicalTrials.govtrials-2026-11-12-0.4.0

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNone stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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