for people ages 25 years and up (full criteria)
study started
estimated completion



This study will evaluate the long-term safety and tolerability of RO7234292 (RG6042) in participants who have completed other F. Hoffmann-La Roche, Ltd.-sponsored and/or Genentech-sponsored studies in the Huntington's disease (HD) in the development program for RG6042.

Official Title

An Open-Label Extension Study to Evaluate the Long-Term Safety and Tolerability of Intrathecally Administered RO7234292 (RG6042) in Patients With Huntington's Disease


Entry into the study should occur at the time the participant completes participation in one of the preceding studies. Upon completion of the inclusion visit, eligible patients will receive either RO7234292 (RG6042) every 8 weeks (Q8W) or RO7234292 (RG6042) every 16 weeks (Q16W) by bolus intrathecal injection.


Huntington Disease


You can join if…

Open to people ages 25 years and up

  • Prior enrollment in a Roche-sponsored or Genentech-sponsored study in HD for the RO7234292 (RG6042) development program that made provision for entry into an OLE study
  • For women of childbearing potential: agreement to remain abstinent or use contraceptive measures
  • For men: agreement to remain abstinent or use a condom, and agreement to refrain from donating sperm

You CAN'T join if...

  • Withdrawal of consent from the preceding study
  • Permanent discontinuation of RO7234292 (RG6042) for any drug-related safety concern during the preceding study or meeting of any study treatment discontinuation criteria specified in the preceding study at the time of enrollment into this study
  • An ongoing, unresolved, clinically significant medical problem that in the judgment of the investigator would make it unsafe for the patient to participate in this study
  • Antiplatelet or anticoagulant therapy within 14 days prior to inclusion or anticipated use during the study, including, but not limited to, aspirin, clopidogrel, dipyridamole, warfarin, dabigatran, rivaroxaban, and apixaban
  • History of bleeding diathesis or coagulopathy
  • Platelet count less than the lower limit of normal
  • Concurrent participation in any therapeutic clinical trial
  • Study treatment (RO7234292/RG6042) is commercially marketed in the patient's country for the patient-specific disease and is accessible to the patient
  • Pregnant or breastfeeding, or intending to become pregnant during the study or within 5 months after the final dose of study drug


  • University of California San Diego accepting new patients
    La Jolla California 92093 United States
  • SC3 Research Group, Inc accepting new patients
    Pasadena California 91105 United States


accepting new patients
Start Date
Completion Date
Hoffmann-La Roche
Phase 3
Study Type
Last Updated