πŸ›οΈ Verified NIH Record β€’ Updated 2026-08-11

Efficacy and Safety of a New Formulation of Oral Cladribine Compared With Placebo in Participants With Generalized Myasthenia Gravis (MyClad) (NCT06463587)

A Phase 3, Randomized, Double-Blind, Placebo-Controlled, 3-Arm, 3-Period Study to Assess the Efficacy and Safety of a New Formulation of Oral Cladribine Compared With Placebo in Participants With Generalized Myasthenia Gravis (MyClad)

🟒 Recruiting Phase3 πŸ’Š Investigational Drug / Biologic Sponsor: Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany

🩺 Plain-English Summary (8th-Grade Level)

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.

Who can join: Review the eligibility criteria below.

Location: Arizona Neuroscience Research, LLC β€” Phoenix, Arizona

Age range: 18 Years

πŸ§ͺ Interventions in This Study

πŸ“‹ "Do I Qualify?" β€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria β†—

πŸ“ All Participating Trial Locations (148 Sites)

Showing the first 25 of 148 sites.

  • Arizona Neuroscience Research, LLC β€” Phoenix, Arizona
  • Advanced Neurosciences Research LLC β€” Longmont, Colorado
  • University of Connecticut Health Center - Department of Medicine β€” Farmington, Connecticut
  • The George Washington University Medical Faculty Associates Foggy Bottom South Pavilion β€” Washington D.C., District of Columbia
  • Neurology of Central Florida Research Center, LLC β€” Altamonte Springs, Florida
  • SFM Clinical Research, LLC β€” Boca Raton, Florida
  • University of Florida Health Science Center - 300120311 β€” Jacksonville, Florida
  • Neurology Associates, P. A. β€” Maitland, Florida
  • University of South Florida - PARENT - PARENT β€” Tampa, Florida
  • University of Kansas Medical Center Research Institute, Inc. - 3901 Rainbow (MAIN) β€” Kansas City, Kansas
  • UNC Hospitals - PARENT β€” Chapel Hill, North Carolina
  • Atrium Health Wake Forest Baptist β€” Winston-Salem, North Carolina
  • Miami Valley Hospital South β€” Centerville, Ohio
  • University of Cincinnati β€” Cincinnati, Ohio
  • Clinical Trials of South Carolina - Charleston β€” Charleston, South Carolina
  • Erlanger Health, Inc. - 1123255 β€” Chattanooga, Tennessee
  • Baylor Scott & White Research Institute - Baylor Scott & White Research Institute β€” Dallas, Texas
  • ANESC Research β€” El Paso, Texas
  • Baylor Scott & White Neurology - McKinney β€” McKinney, Texas
  • The University of Vermont Medical Center β€” Burlington, Vermont
  • Integrated Neurology Services - Dr. Simon Fishman's Office β€” Falls Church, Virginia
  • Expertia S.A- Mautalen Salud e InvestigaciΓ³n β€” Ciudad Autonoma Buenos Aires,
  • Instituto de Investigaciones Neurologicas Raul Carrea, FLENI - de Investigaciones Clinicas del Γ‘rea de CardiologΓ­a y enfermedades metabΓ³licas asociadas β€” Ciudad Autonoma Buenos Aires,
  • Instituto de Investigaciones Metabolicas (IDIM) β€” Ciudad Autonoma Buenos Aires,
  • Hospital Cordoba β€” CΓ³rdoba,

πŸ“ž Contact the Study Coordinator

Phone: (888) 275-7376

Email: eMediUSA@emdserono.com

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

πŸ’° Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA Β§ 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

πŸ’‘ How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
πŸ›οΈ View Official NIH Record β†—