An Open-Label Extension Study to Evaluate Long-Term Safety and Tolerability of RO7234292 (RG6042) in Huntington's Disease Participants Who Participated in Prior Roche and Genentech Sponsored Studies
Huntington Disease
About this trial
This is an interventional treatment trial for Huntington Disease
Eligibility Criteria
Inclusion Criteria:
- 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
- Patients who were screened and eligible for the placebo-controlled Phase III Study BN40423 but could not be randomized prior to the close of Study BN40423 enrollment due to challenges relating to the COVID-19 pandemic
Inclusion criteria of patients who were screened and eligible for the placebo-controlled Phase III Study BN40423 but could not be randomized prior to the close of Study BN40423 enrollment due to challenges relating to the COVID-19 pandemic:
- Manifest HD diagnosis, defined as a DCL score of 4
- Independence Scale (IS) score >=70
- Genetically confirmed disease by direct DNA testing with a CAP score >400
- Clinical assessment to ensure individual has intact functional independence at baseline to maintain self-care and core activities of daily living (ADLs).
Exclusion Criteria:
- 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
Exclusion criteria of patients who were screened and eligible for the placebo-controlled Phase III Study BN40423 but could not be randomized prior to the close of Study BN40423 enrollment due to challenges relation to the COVID-19 pandemic:
- Any serious medical condition or clinically significant laboratory, or vital sign abnormality or claustrophobia at screening that, in the investigator's judgment, precludes the patient's safe participation in and completion of the study
- Pregnant or breastfeeding, or intending to become pregnant during the study or within 5 months after the final dose of study drug
Sites / Locations
- Uab Medicine
- University of California San Diego
- Stanford Univ Medical Center
- SC3 Research Group, Inc
- CenExel Rocky Mountain Clinical Research, LLC
- Georgetown University; Research Division, Psychiatry
- University of South Florida
- Northwestern University
- John Hopkins University School of Medicine
- Dent Neurological Institute
- Columbia University
- University of Pittsburgh
- Vanderbilt University Medical Center
- The University of Texas Health Science Center at Houston; McGovern Medical School
- Uniklinik fuer Neurologie, Medizinische Universitaet Innsbruck; Department fuer Neurologie
- University of British Columbia Hospital; Division of Neurology
- Centre for Movement Disorders
- Ottawa Hospital Research Institute
- Centre Hospitalier de l?Université de Montréal (CHUM)
- Charité - Universitätsmed. Berlin, Klinik für Psychiatrie und Psychotherapie; Abt. Neuropsychiatrie
- St. Josef-Hospital, Neurologische Klinik der Ruhr-Uni; Huntington-Center NRW, Abt. Neurodegeneration
- Universitätsklinikum Ulm; Klinik für Neurologie
- Fondazione IRCCS Istituto Neurologico Carlo Besta; U.O.C. Genetica Medica-Neurogenetica
- IRCCS Casa Sollievo Della Sofferenza; Unità Ricerca e Cura Huntington e Malattie Rare
- Universitair Medisch Centrum Groningen
- LUMC
- Hospital Universitario de Badajoz; Servicio de Neurología
- Hospital Clinic Servicio de Neurologia
- Hospital de la Santa Creu i Sant Pau; Servicio de Neurologia
- Hospital Universitario de Burgos. Servicio de Neurología
- Hospital Ramon y Cajal; Servicio de Neurologia
- Fundacion Jimenez Diaz; Servicio de Neurología
- Hospital Universitario Virgen Macarena; Servicio de Neurologia
- Birmingham and Solihull Mental Health Foundation Trust; Institute of Clinical Sciences
- Cambridge Centre for Brain Repair; Department of Clinical Nuerosciences, Addenbrookes Hospital
- University Hospital of Wales; Division of Psychological Medicine and Clinical Neurosciences
- University College London Hospitals NHS Foundation Trust - University College Hospital
- Central Manchester University Hospitals NHS Foundation Trust; Manchester Centre for Genomic Medicine
Arms of the Study
Arm 1
Arm 2
Experimental
Experimental
RO7234292 (RG6042) Q8W
RO7234292 (RG6042) Q16W
Participants who received open-label RO7234292 Q4W in a preceding study or who received RO7234292 Q4W in this study may be randomly allocated to receive RO7234292 Q8W. Participants who previously received open-label of RO7234292 Q8W in a preceding study or are currently receiving RO7234292 Q8W in this study will receive RO7234292 Q8W. Participants who previously received placebo, or did not previously receive treatment with RO7234292 or received short-term treatment with a treatment-free follow-up period may be randomly allocated to receive RO7234292 Q8W. Participants who previously received blinded placebo Q8W may receive RO7234292 Q8W. Participants who received blinded RO7234292 Q8W will receive open-label RO7234929 Q8W. Participants who received blinded placebo Q8W may receive RO7234292 Q8W. Participants who received blinded RO7234292 Q4W or blinded placebo Q4W may be randomly allocated to receive open-label of RO7234292 Q8W.
Participants who previously received open-label RO7234292 Q4W in a preceding study or who received RO7234292 Q4W in this study may be randomly allocated to receive RO7234292 Q16W. Participants who previously received placebo in a preceding study or did not previously receive treatment with RO7234292 or received short-term treatment with a treatment-free follow-up period may be randomly allocated to receive RO7234292 Q16W. Participants who previously received blinded placebo Q8W will receive RO7234292 Q8W. Participants who previously received blinded RO7234292 Q16W will receive open-label RO7234292 Q16W. Participants who received blinded RO7234292 Q4W or blinded placebo Q4W may be randomly allocated to receive open-label of RO7234292 Q16W. Participants who previously received open-label RO7234292 Q16W will receive open-label RO7234292 Q16W.