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Efficacy and Safety of a New Formulation of Oral Cladribine Compared With Placebo in Participants With Generalized Myasthenia Gravis (MyClad)

View on ClinicalTrials.gov ↗

Record History

  1. Minor Trial sites expanded: 148 → 153 locations Eligibility criteria expanded, about 25 words · Secondary endpoints: details revised at 2 of 11 entries · Collaborators: details revised at 1 of 1 entry Show 3 more changesShow less
    • Eligibility criteria expanded, about 25 words
    • Secondary endpoints: details revised at 2 of 11 entries
    • Collaborators: details revised at 1 of 1 entry
  2. Minor Trial sites expanded: 145 → 148 locationsv28
  3. Minor Study sites: 144 to 145v27
  4. Minor Re-verified, no change to tracked fieldsv26
  5. Minor Trial sites expanded: 138 → 144 locationsv25
  6. Minor Primary completion pushed from May 19, 2028 to Aug 23, 2028 Trial sites expanded: 133 → 138 locations · Completion pushed from Aug 19, 2030 to Nov 12, 2030 · Eligibility criteria expanded, about 97 words · 1 morev24 Show 4 more changesShow less
    • Trial sites expanded: 133 → 138 locations
    • Completion pushed from Aug 19, 2030 to Nov 12, 2030
    • Eligibility criteria expanded, about 97 words
    • Secondary endpoints: 10 to 11

    See this version in full on ClinicalTrials.gov ↗

  7. Minor Study sites: 132 to 133v23
  8. Minor Study sites: 128 to 132v22
  9. Minor Study sites: 112 to 128v21
  10. Minor Study sites: 71 to 112v20
  11. Minor Study sites: 54 to 71v19
  12. Minor Study sites: 35 to 54v18
  13. Minor Site details revised at 1 of 35 sitesv17
  14. Minor Re-verified, no change to tracked fieldsv16
  15. Minor Enrollment target: 240 to 264 Completion date: Jul 23, 2030 to Aug 19, 2030 · Eligibility criteria expanded, about 164 words · Secondary endpoints revised (10)v15 Show 3 more changesShow less
    • Completion date: Jul 23, 2030 to Aug 19, 2030
    • Eligibility criteria expanded, about 164 words
    • Secondary endpoints revised (10)

    See this version in full on ClinicalTrials.gov ↗

  16. Minor 5 versions Re-verified since Feb 18, 2025, no change to tracked fieldsv10-v14
  17. Minor Study sites: 32 to 35v9
  18. Minor Study sites: 29 to 32v8
  19. Minor Study sites: 20 to 29v7
  20. Minor Study sites: 18 to 20v6
  21. Minor Study sites: 5 to 18v5
  22. Minor Study sites: 1 to 5v4
  23. Notable Trial status: Not Yet Recruiting to Recruiting Study sites: 2 to 1 · Start date changed from estimate of Jun 17, 2024 to Jun 25, 2024v3 Show 2 more changesShow less
    • Study sites: 2 to 1
    • Start date changed from estimate of Jun 17, 2024 to Jun 25, 2024
  24. Minor Primary completion date: Feb 14, 2029 to May 19, 2028 Completion date: Feb 28, 2031 to Jul 23, 2030 · Collaborators expanded, about 7 wordsv2 Show 2 more changesShow less
    • Completion date: Feb 28, 2031 to Jul 23, 2030
    • Collaborators expanded, about 7 words

    See this version in full on ClinicalTrials.gov ↗

  25. Minor Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
43 trials monitored
See 4 trials at risk
The purpose of this clinical study is to determine the efficacy and safety of a new oral cladribine formulation in participants with Generalized Myasthenia Gravis (gMG) in comparison to placebo. It will also investigate the sustained efficacy, the need for retreatment, and the long-term safety of oral cladribine in gMG. An additional component is included to characterize the Pharmacokinetics (PK) of the new cladribine formulation in gMG participants. This study is divided into 3 periods: the double-blind placebo control (DBPC) pivotal period, and 2 extensions, the blinded extension (BE) and the retreatment (RT) period. Furthermore, in trial interviews will be conducted as a sub-study to MyClad with a sub-set of participants to gain an in depth understanding of the participant cladribine treatment and study experience.
Trial Details
NCT Number NCT06463587
Lead Sponsor Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany
Collaborators: EMD Serono Research & Development Institute, Inc.
Conditions Generalized Myasthenia Gravis
Enrollment 264 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov