A Study of Treatment With Pridopidine (ACR16) in Participants With Huntington's Disease
MermaiHD
A Multicentre, Multinational, Randomised, Double-Blind, Parallel-Group Study Comparing ACR16 45 mg Once-Daily or Twice-Daily Versus Placebo for the Symptomatic Treatment of Huntington's Disease
1 other identifier
interventional
437
8 countries
31
Brief Summary
The purpose of this study is to determine if ACR16 is effective and safe in the symptomatic treatment of Huntington's disease.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Apr 2008
31 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 22, 2008
CompletedFirst Posted
Study publicly available on registry
April 23, 2008
CompletedStudy Start
First participant enrolled
April 24, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 14, 2010
CompletedStudy Completion
Last participant's last visit for all outcomes
June 14, 2010
CompletedResults Posted
Study results publicly available
August 29, 2023
CompletedAugust 29, 2023
July 1, 2023
2.1 years
April 22, 2008
June 23, 2023
August 10, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change From Baseline in Modified Motor Score (mMS) (Sum of Score of Items 4-10 and 13-15 of the Unified Huntington's Disease Rating Scale [UHDRS] Motor Assessments) at Week 26
The mMS is a subscale of the UHDRS total motor score and comprises 13 responses from the 10 items, 4-10 and 13-15, from the UHDRS motor assessment. The items for mMS include dysarthria, tongue protrusion, finger taps (right and left), pronate/supinate hands (right and left), luria - first-hand-palm sequencing, arms rigidity (right and left), body bradykinesia, gait, tandem walking, and retropulsion pull test. Each of these items are rated on a scale of 0 (normal) to 4 (marked impairment). Total score ranges from 0 to 52, with higher scores indicating more severe motor impairment.
Baseline, Week 26
Secondary Outcomes (7)
The UHDRS Functional Assessment at Week 26
Week 26
Number of Participants With Clinical Global Impression - Improvement (CGI-I) Score
Week 26
Change From Baseline in Stroop Word Reading Test at Week 26
Baseline, Week 26
Change From Baseline in Total UHDRS Behavioral Assessment Score at Week 26
Baseline, Week 26
Change From Baseline in Total Hospital Anxiety and Depression Scale (HADS) Score at Week 26
Baseline, Week 26
- +2 more secondary outcomes
Study Arms (3)
Placebo
PLACEBO COMPARATORParticipants will receive a placebo capsule matching to ACR16 once daily for the first 4 weeks. After 4 weeks (Weeks 5 to 26), placebo capsule will be taken twice daily as 2 separate doses.
ACR16 45 mg
EXPERIMENTALParticipants will receive ACR16 45 milligrams (mg) capsule orally once daily for the first 4 weeks. After 4 weeks (Weeks 5 to 26), one ACR16 45 mg capsule and one placebo capsule will be taken as 2 separate doses.
ACR16 90 mg
EXPERIMENTALParticipants will receive ACR16 45 mg capsule once daily for the first 4 weeks. After 4 weeks (Weeks 5 to 26), ACR16 45 mg capsule will be taken twice daily as 2 separate doses (total dose: 90 mg)
Interventions
Eligibility Criteria
You may qualify if:
- Able to provide written Informed Consent prior to any study related procedure.
- Huntington's disease diagnosed with the aid of clinical features and a positive family history and/or the presence of ≥ 36 CAG repeats in the Huntington gene.
- Male or female age ≥ 30 years.
- Willing and able to take oral medication and able to comply with the study specific procedures.
- Ambulatory, being able to travel to the assessment centre, and judged by the Investigator as likely to be able to continue to travel for the duration of the study.
- Availability of a caregiver or family member to accompany the participant.
- A sum of ≥ 10 points on the mMS at the screening visit.
- For participants taking allowed antipsychotic medication, the dosing of medication must have been kept constant for at least 6 weeks before randomization. The allowed antipsychotic medication is Amisulpride, Haloperidol, Olanzapine, Risperidone, Sulpiride, or Tiapride.
- For participants taking allowed antidepressant or other psychotropic medication, the dosing of medication must have been kept constant for at least 6 weeks before randomization.
- Willing to provide a blood sample for CAG analysis (where CAG result is not already available).
- In France only, the participant must be affiliated to a social security system or be a beneficiary of such a system.
You may not qualify if:
- Unable to give written informed consent.
- Treatment with any non-allowed antipsychotic medication within 12 weeks of randomization. The non-allowed antipsychotic medication is any medication other than Amisulpride, Haloperidol, Olanzapine, Risperidone, Sulpiride, or Tiapride.
- Treatment with the antidepressants Fluoxetine or Paroxetine within 6 weeks of randomization.
- Use of Tetrabenazine within 12 weeks of randomization, or at any time during the study period.
- Treatment with any investigational product within 4 weeks of randomization.
- Use of tricyclic antidepressants, class I antiarrhythmics, and strong CYP2D6 inhibitors such as Ajmalicine, Chinidin/Quinidine and Ritonavir, within 6 weeks of randomization.
- Participants previously included into this study.
- A prolonged QTc interval at screen (defined as a QTc interval of \> 450 milliseconds \[msec\] for males or \> 470 msec for females), or other clinically significant heart conditions.
- Creatinine clearance \<40 milliliters (mL)/minute (min) as measured at the screening visit.
- Any clinically significant, abnormal, baseline laboratory result which in the opinion of the Investigator, affects the participants' suitability for the study or puts the participant at risk if he/she enters the study.
- Clinically significant hepatic or renal impairment.
- Participants with a history of epilepsy or a history of seizure(s) of unknown cause.
- Severe intercurrent illness, which, in the opinion of the Investigator, may put the participant at risk when participating in the trial or may influence the results of the trial or affect the participants' ability to take part in the trial.
- Alcohol and/or drug abuse as defined by Diagnostic and Statistical Manual - Fourth Edition - Text Revision (DSM IV-TR) criteria for substance abuse - this includes the illicit use of cannabis within the last 12 months.
- Participants with suicidal ideation, defined as a positive score on criteria for major depressive episode, item A9 on the DSM-IV-TR criteria for a Major Depressive Episode.
- +6 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (31)
LKH -Univ. Klinikum Graz, Universitaetsklinik fur Psychiatrie Graz
Graz, Styria, 8036, Austria
Innsbruck Medical University, Anichstraße 35
Innsbruck, Tyrol, A-6020, Austria
University Hospital Gasthuisberg
Leuven, Flemish Brabant, 3000, Belgium
CHU Roger Salengro
Lille, Hauts-de-France, 59037, France
Hôpital Purpan, Place Docteur-Baylac, Bâtiment F
Toulouse, Midi-Pyrénées Region, 31059, France
Hôpital Nord, CHU d'Amiens, Service de Neurologie
Amiens, Picardie, 80054, France
CHU La Timone, 264 Rue Saint Pierre
Marseille, Provence-Alpes-Côte d'Azur Region, 13385, France
Universitätsklinik Ulm, Neurologie/ Oberer Eselberg 45/1
Ulm, Baden-Wurttemberg, 89081, Germany
Klinikum rechts der Isar der Technischen Universität München, Neurologische Klinik und Poliklinik, Ismaninger Str. 22
München, Bavaria, 81675, Germany
Isar Amper Klinikum gemeinnützige GmbH, Klinik Taufkirchen (Vils), Bräuhausstr.5
Taufkirchen (Vils), Bavaria, 84416, Germany
St. Josef Hospital, Ruhr University Bochum, Gudrunstraße 56
Bochum, North Rhine-Westphalia, 44791, Germany
Westfaelische Wilhelms-Universitaet Muenster, Klinik fur Neurologie
Münster, North Rhine-Westphalia, 48149, Germany
Universitat Dresden, Klinikum Carl Gustav Carus, Fetscherstr. 74
Dresden, Saxony, 01307, Germany
Klinik für Psychiatrie und Psychotherapie, Charité - Universitätsmedizin Berlin, Schumannstrasse 20/21
Berlin, 10117, Germany
Fondazione IRCCS Istituto Nazionale Neurologico "Carlos Besta", Department of Movement Disorders, 11 via Celoria
Milan, Lombardy, 20133, Italy
IRCCS Neuromed, Localita Camarelle
Pozzilli, Molise, 86077, Italy
University Hospital of Coimbra, Av. Rissaya Barreto
Coimbra, Baixo Mondego, 3000-075, Portugal
Centro de Estudos Egas Moniz, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz
Lisbon, 1649-028, Portugal
Hospital Mútua de Terrassa, C/ Castell
Terrassa, Catalonia, 08225, Spain
Hospital Clinic of Barcelona, Calle Villarroel, 170
Barcelona, 08036, Spain
Hospital Ramon y Cajal, Carretera Colemenar km 9.100
Madrid, 28034, Spain
Hospital Universitario La Fe, Avda. Campanar 21,
Valencia, 46009, Spain
R&D Headquarters, Barberry Centre, 25 Vincent Drive
Birmingham, England/West Midlands, B15 2SG, United Kingdom
Department of Clinical Genetics, St Mary's Hospital, Hathersage Road
Manchester, North West England, M13 9WL, United Kingdom
First Floor Argyll House, Fosterhill, Cornhill Road
Aberdeen, Scotland, AB25 2ZR, United Kingdom
SE Scotland Genetic Service, Western General Hospital, Crewe Road
Edinburgh, Scotland, EH4 2XU, United Kingdom
Churchill Hospital, Old Road, Headington
Oxford, South East England, OX3 7LJ, United Kingdom
Academic Neurology Unit, E Floor Medical School Beech Hill Road
Sheffield, South Yorkshire, S10 2RX, United Kingdom
Institute of Human Genetics, Centre for Life, Central Parkway
Newcastle upon Tyne, Tyne and Wear, NE1 3BZ, United Kingdom
Cardiff University School of Medicine, Department of Neurology & Medical Genetics, Heath Park
Cardiff, Wales, CF14 4XN, United Kingdom
Cambridge Centre for Brain repair, Cambridge University
Cambridge, CB2 2PY, United Kingdom
Related Publications (2)
Darpo B, Geva M, Ferber G, Goldberg YP, Cruz-Herranz A, Mehra M, Kovacs R, Hayden MR. Pridopidine Does Not Significantly Prolong the QTc Interval at the Clinically Relevant Therapeutic Dose. Neurol Ther. 2023 Apr;12(2):597-617. doi: 10.1007/s40120-023-00449-w. Epub 2023 Feb 22.
PMID: 36811812DERIVEDde Yebenes JG, Landwehrmeyer B, Squitieri F, Reilmann R, Rosser A, Barker RA, Saft C, Magnet MK, Sword A, Rembratt A, Tedroff J; MermaiHD study investigators. Pridopidine for the treatment of motor function in patients with Huntington's disease (MermaiHD): a phase 3, randomised, double-blind, placebo-controlled trial. Lancet Neurol. 2011 Dec;10(12):1049-57. doi: 10.1016/S1474-4422(11)70233-2. Epub 2011 Nov 7.
PMID: 22071279DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Director, Clinical Research
- Organization
- Teva Branded Pharmaceutical Products R&D, Inc.
Study Officials
- STUDY DIRECTOR
Teva Medical Expert, MD
Teva Branded Pharmaceutical Products R&D, Inc.
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 22, 2008
First Posted
April 23, 2008
Study Start
April 24, 2008
Primary Completion
June 14, 2010
Study Completion
June 14, 2010
Last Updated
August 29, 2023
Results First Posted
August 29, 2023
Record last verified: 2023-07