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A Study to Evaluate the Efficacy and Safety of Intrathecally Administered RO7234292 (RG6042) in Participants With Manifest Huntington's Disease

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT03761849
Recruitment Status : Completed
First Posted : December 3, 2018
Last Update Posted : September 22, 2022
Sponsor:
Information provided by (Responsible Party):
Hoffmann-La Roche

Study Description
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Brief Summary:
This study will evaluate the efficacy, safety, and biomarker effects of RO7234292 (RG6042) compared with placebo in participants with manifest Huntington's disease (HD).

Condition or disease Intervention/treatment Phase
Huntingtons Disease Drug: RO7234292 Drug: Placebo Phase 3

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 899 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Multicenter, Double-Blind, Placebo-Controlled, Phase III Clinical Study to Evaluate the Efficacy and Safety of Intrathecally Administered RO7234292 (RG6042) in Patients With Manifest Huntington's Disease
Actual Study Start Date : January 23, 2019
Actual Primary Completion Date : March 17, 2022
Actual Study Completion Date : March 17, 2022

Resource links provided by the National Library of Medicine


Arms and Interventions
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Arm Intervention/treatment
Experimental: RO7234292 Q8W
RO4234292 is administered intrathecally every 8 weeks.
 Drug: RO7234292
Intrathecal injection
Other Name: Tominersen
Experimental: RO7234292 Q16W
RO7234292 is administered intrathecally every 16 weeks. Participants in this arm will also receive placebo at alternate weeks to keep the blind.
 Drug: RO7234292
Intrathecal injection
Other Name: Tominersen

Drug: Placebo
Intrathecal injection
Placebo Comparator: Placebo
Placebo will be administered every 8 weeks by IT injection.
 Drug: Placebo
Intrathecal injection


Outcome Measures
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Primary Outcome Measures :
  1. Change from Baseline in the Composite Unified Huntington's Disease Rating Scale (cUHDRS) [ Time Frame: Baselined, Week 101 ]
  2. Change From Baseline in the TFC Score [ Time Frame: Baseline, Week 101 ]

Secondary Outcome Measures :
  1. Change From Baseline in Total Motor Score (TMS) [ Time Frame: Baseline, Week 101 ]
  2. Change From Baseline in Symbol Digit Modalities Test (SDMT) [ Time Frame: Baseline, Week 101 ]
  3. Change From Baseline in Stroop Word Reading (SWR) Test [ Time Frame: Baseline, Week 101 ]
  4. Change From Baseline in the Clinical Global Impression, Severity Scale (CGI-S) [ Time Frame: Baseline, Week 101 ]
  5. Percentage of Patients with a Decrease From Baseline of >=1 point on the TFC [ Time Frame: Baseline, Week101 ]
  6. Percentage of Patients With a Decline From Baseline of >=1.2 Points on the cUHDRS [ Time Frame: Baseline, Week 101 ]
  7. Percentage of Patients With an Unchanged or Improved Score on the Clinical Global Impression, Change Scale (CGI-C) Score [ Time Frame: Baseline to Week 101 ]
  8. Percentage of Participants with Adverse Events [ Time Frame: Up to 117 Weeks (29 months) ]
  9. Change From Baseline in Montreal Cognitive Assessment (MoCA) [ Time Frame: Screening, Baseline, Weeks 5, 21, 37, 53, 69, 85 and 101 and early treatment termination ]
  10. Percentage of Participants With Suicidal Ideation or Behavior, as Assessed by Columbia-Suicide Severity Rating Scale (C-SSRS) Score [ Time Frame: Screening, Baseline, Weeks 5, 13, 21, 29, 37, 45, 53, 61, 69, 77, 85, 93, 101, 117, end of treatment for early treatment termination and at early treatment termination ]
  11. Concentration of RO7234292 in Plasma [ Time Frame: Baseline, Weeks 13, 21, 37, 53, 69, 85, and 101 and early treatment termination ]
  12. Trough Concentration of RO7234292 in CSF [ Time Frame: Baseline, Weeks 13, 21, 37, 53, 69, 85, and 101 and early treatment termination ]
  13. Incidence of Anti-Drug Antibodies (ADAs) [ Time Frame: Baseline, Weeks 13, 21, 37, 53, 69, 85, and 101 and early treatment termination and safety follow-up visit ]
  14. Titer and Antibody Subtype, determined if ADAs are Identified [ Time Frame: Baseline, Weeks 13, 21, 37, 53, 69, 85, and 101 and early treatment termination and safety follow-up visit ]
  15. Change From Baseline in CSF mHTT Protein Level [ Time Frame: Baseline, Week 101 ]
  16. Change From Baseline in Whole and Regional Brain Volumes, as detrmined by structural magnetic resonance imaging (MRI) [ Time Frame: Baseline, Week 101 ]
  17. Change From Baseline in CSF Neurofilament Light Chain (NfL) Proteint Level [ Time Frame: Baseline, Week 101 ]

Eligibility Criteria
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Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   25 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • 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:

  • 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
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03761849


Locations
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Sponsors and Collaborators
Hoffmann-La Roche
Investigators
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Study Director: Clinical Trials Hoffmann-La Roche
More Information
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Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT03761849    
Other Study ID Numbers: BN40423
GENERATION HD1 ( Other Identifier: Hoffmann-La Roche )
First Posted: December 3, 2018    Key Record Dates
Last Update Posted: September 22, 2022
Last Verified: September 2022

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Hoffmann-La Roche:
HD, RG6042, intrathecal, ASO, antisense oligonucleotide
Additional relevant MeSH terms:
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Huntington Disease
Basal Ganglia Diseases
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Dementia
Chorea
Dyskinesias
 Movement Disorders
Heredodegenerative Disorders, Nervous System
Neurodegenerative Diseases
Genetic Diseases, Inborn
Cognition Disorders
Neurocognitive Disorders
Mental Disorders