A Clinical Study in Participants With Huntington's Disease (HD) to Assess Efficacy and Safety of Three Oral Doses of Laquinimod
LEGATO-HD
A Multicenter, Multinational, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Efficacy and Safety of Laquinimod (0.5, 1.0 and 1.5 mg/Day) as Treatment in Patients With Huntington's Disease
2 other identifiers
interventional
352
10 countries
53
Brief Summary
The primary objective of this study is to assess the efficacy of laquinimod as treatment in participants with HD after 52 weeks using the Unified Huntington's Disease Rating Scale Total Motor Score (UHDRS-TMS or TMS).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Oct 2014
Typical duration for phase_2
53 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
August 12, 2014
CompletedFirst Posted
Study publicly available on registry
August 13, 2014
CompletedStudy Start
First participant enrolled
October 28, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 19, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
June 19, 2018
CompletedResults Posted
Study results publicly available
June 19, 2019
CompletedMay 4, 2020
April 1, 2020
3.6 years
August 12, 2014
May 29, 2019
April 30, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Change From Baseline in UHDRS-TMS at Week 52
UHDRS is a research tool developed by Huntington Disease (HD) Study Group to provide a uniform assessment of the clinical features and course of HD. Components of the full UHDRS assess motor function, cognition, behaviour, functional abilities, independence scale and total functional capacities. Motor function assessment includes TMS and Total Functional Capacity (TFC) score. The UHDRS TMS assesses all the motor features of HD and includes maximal chorea, maximal dystonia, ocular pursuit, saccade initiation and velocity, dysarthria, tongue protrusion, finger tapping, hand pronation and supination, luria, rigidity, bradykinesia, gait, tandem walking, and retropulsion pull test. Each of these was rated on a scale of 0 (normal motor function) to 4 (severely impaired motor function). TMS score is a sum of individual scores ranging from 0 (normal motor function) to 124 (severely impaired motor function). Lower TMS scores indicate better motor function.
Baseline, Week 52
Secondary Outcomes (1)
Percent Change From Baseline in Caudate Volume (Brain Atrophy) at Week 52
Baseline, Week 52
Study Arms (4)
Placebo
PLACEBO COMPARATORParticipants will receive 3 capsules of matching laquinimod placebo, orally once daily for 52 weeks.
Laquinimod 0.5 mg
EXPERIMENTALParticipants will receive 1 capsule of laquinimod 0.5 milligrams (mg) and 2 capsules of matching placebo, orally once daily for 52 weeks.
Laquinimod 1.0 mg
EXPERIMENTALParticipants will receive 2 capsule of laquinimod 0.5 mg (total 1.0 mg laquinimod) and 1 capsule of matching placebo, orally once daily for 52 weeks.
Laquinimod 1.5 mg
EXPERIMENTALParticipants will receive 3 capsules of laquinimod 0.5 mg (total 1.5 mg laquinimod), orally once daily. Note: The treatment of this high dose arm was discontinued as of 10 January 2016.
Interventions
Laquinimod capsules will be administered as per the dose and schedule specified in the respective arms.
Matching laquinimod placebo will be administered as per the schedule specified in the respective arms.
Eligibility Criteria
You may qualify if:
- Documentation of prior positive genetic testing for HD, or a clinical diagnosis of symptomatic HD.
- Presence of 36-49 cytosine-adenosine-guanine (CAG) repeats, inclusive, in the huntingtin gene based on centralized CAG testing during screening.
- Male or female between 21-55 years of age, inclusive, with an onset of HD at or after 18 years of age.
- Women of child-bearing potential (women who are not post menopausal or who have undergone surgical sterilization) must practice an acceptable method of birth control for 30 days before taking the study treatment, and 2 acceptable methods of birth control during all study duration and until 30 days after the last dose of treatment was administered.
- A sum of greater than (\>) 5 points on the UHDRS-TMS at the screening visit.
- Able and willing to provide written informed consent prior to any study related procedure being performed at the screening visit. Participants with a legal guardian should be consented according to local requirements.
- Willing to provide a blood sample for genomic CAG analysis at the screening visit.
- Willing and able to take oral medication and able to comply with the study specific procedures.
- Ambulatory, being able to travel to the study center, and judged by the investigator as likely to be able to continue to travel for the duration of the study.
- Availability and willingness of a caregiver, informant, or family member to provide input at study visits assessing Clinician's Interview-Based Impression of Change (CIBIC)-Plus, Clinical Dementia Rating - Sum of Boxes (CDR-SB), Problem Behaviors Assessment-Short form (PBA-s) and Huntington's Disease Quality of Life (HD-QoL). A caregiver is recommended to be someone who attends to the participant at least 2 to 3 times per week for at least 3 hours per occasion, and the suitability of the caregiver should be judged by the investigator.
- For participants taking allowed antidepressant medication, the dosing of medication must have been kept constant for at least 30 days before baseline and must be kept constant during the study.
- Additional criteria may apply, please contact the investigator for more information.
You may not qualify if:
- Use of immunosuppressive agents, or cytotoxic agents, including cyclophosphamide and azatioprine within 12 months prior to screening.
- Previous use of laquinimod.
- Use of moderate/strong inhibitors of cytochrome P450 (CYP)3A4 within 2 weeks prior to randomization.
- Use of inducers of CYP3A4 within 2 weeks prior to randomization.
- Pregnant or breastfeeding.
- Participants with a clinically significant or unstable medical or surgical condition that may put the participant at risk when participating in the study or may influence the results of the study or affect the participant's ability to take part in the study, as determined by medical history, physical examinations, electrocardiogram (ECG), or laboratory tests. Such conditions may include:
- A major cardiovascular event (for example; myocardial infarction, acute coronary syndrome, de-compensated congestive heart failure, pulmonary embolism, coronary revascularization) that occurred prior to randomization.
- Any acute pulmonary disorder.
- A central nervous system (CNS) disorder other than HD that may jeopardize the participant's participation in the study, including such disorders that are demonstrated on the baseline MRI (based on local read).
- A gastrointestinal disorder that may affect the absorption of study medication.
- Acute or chronic renal disease including acute kidney injury (AKI).
- Any form of acute or chronic liver disease.
- Known human immunodeficiency virus (HIV) positive status. Participants will undergo an HIV test at screening per local requirements, if applicable.
- Any malignancies, excluding basal cell carcinoma, in the 5 years prior to randomization.
- Any clinically significant, abnormal, screening laboratory result which in the opinion of the investigator, affects the participant' suitability for the study or puts the participant at risk if he/she enters the study.
- +10 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (53)
Teva Investigational Site 12566
La Jolla, California, 92037, United States
Teva Investigational Site 12565
Los Angeles, California, 90095, United States
Teva Investigational Site 12567
San Francisco, California, 94143, United States
Teva Investigational Site 12575
Englewood, Colorado, 80113, United States
Teva Investigational Site 13490
Tampa, Florida, 33612, United States
Teva Investigational Site 13326
Iowa City, Iowa, 52242, United States
Teva Investigational Site 12568
Wichita, Kansas, 67226, United States
Teva Investigational Site 12574
Baltimore, Maryland, 21287-0005, United States
Teva Investigational Site 12571
Golden Valley, Minnesota, 55427, United States
Teva Investigational Site 12572
St Louis, Missouri, 63110, United States
Teva Investigational Site 12570
New York, New York, 10032, United States
Teva Investigational Site 12569
Rochester, New York, 14618, United States
Teva Investigational Site 13489
Memphis, Tennessee, 38163, United States
Teva Investigational Site 13325
Nashville, Tennessee, 37232, United States
Teva Investigational Site 12815
Houston, Texas, 77030, United States
Teva Investigational Site 12576
Kirkland, Washington, 98034, United States
Teva Investigational Site 11080
Vancouver, British Columbia, V6T 2B5, Canada
Teva Investigational Site 11118
Ottawa, Ontario, K1G 4G3, Canada
Teva Investigational Site 11079
Toronto, Ontario, M3B 2S7, Canada
Teva Investigational Site 11124
Edmonton, T6G 2G3, Canada
Teva Investigational Site 54108
Prague, 12800, Czechia
Teva Investigational Site 32480
Berlin, 10117, Germany
Teva Investigational Site 32482
Bochum, 44791, Germany
Teva Investigational Site 32618
Erlangen, 91054, Germany
Teva Investigational Site 32483
München, 81675, Germany
Teva Investigational Site 32481
Münster, 48149, Germany
Teva Investigational Site 32479
Ulm, 89081, Germany
Teva Investigational Site 30168
Bologna, 40139, Italy
Teva Investigational Site 30098
Milan, 20133, Italy
Teva Investigational Site 30100
Milan, 20133, Italy
Teva Investigational Site 30097
Napoli, 80131, Italy
Teva Investigational Site 30099
San Giovanni Rotondo, 71013, Italy
Teva Investigational Site 38066
Leiden, 2333 ZA, Netherlands
Teva Investigational Site 36026
Lisbon, 1649-035, Portugal
Teva Investigational Site 50379
Kazan', 420101, Russia
Teva Investigational Site 50380
Moscow, 125367, Russia
Teva Investigational Site 50381
Nyznij Novgorod, 603126, Russia
Teva Investigational Site 31185
Barakaldo, 48903, Spain
Teva Investigational Site 31097
Barcelona, 8036, Spain
Teva Investigational Site 31110
Barcelona, 8041, Spain
Teva Investigational Site 31186
Burgos, 09006, Spain
Teva Investigational Site 31131
Madrid, 28034, Spain
Teva Investigational Site 31187
Seville, 41009, Spain
Teva Investigational Site 34176
Aberdeen, AB25 2ZN, United Kingdom
Teva Investigational Site 34177
Birmingham, B15 2SG, United Kingdom
Teva Investigational Site 34194
Liverpool, L9 7LJ, United Kingdom
Teva Investigational Site 34179
London, NW1 2PG, United Kingdom
Teva Investigational Site 34209
London, SE1 9RT, United Kingdom
Teva Investigational Site 34204
London, SW17 0QT, United Kingdom
Teva Investigational Site 34203
London, W12 0NN, United Kingdom
Teva Investigational Site 34175
Manchester, M13 9WL, United Kingdom
Teva Investigational Site 34215
Newcastle upon Tyne, NE6 4QD, United Kingdom
Teva Investigational Site 34216
Sheffield, S5 7AU, United Kingdom
Related Publications (2)
Reilmann R, Anderson KE, Feigin A, Tabrizi SJ, Leavitt BR, Stout JC, Piccini P, Schubert R, Loupe P, Wickenberg A, Borowsky B, Rynkowski G, Volkinshtein R, Li T, Savola JM, Hayden M, Gordon MF; LEGATO-HD Study Group. Safety and efficacy of laquinimod for Huntington's disease (LEGATO-HD): a multicentre, randomised, double-blind, placebo-controlled, phase 2 study. Lancet Neurol. 2024 Mar;23(3):243-255. doi: 10.1016/S1474-4422(23)00454-4. Epub 2024 Jan 24.
PMID: 38280392DERIVEDEhrnhoefer DE, Caron NS, Deng Y, Qiu X, Tsang M, Hayden MR. Laquinimod decreases Bax expression and reduces caspase-6 activation in neurons. Exp Neurol. 2016 Sep;283(Pt A):121-8. doi: 10.1016/j.expneurol.2016.06.008. Epub 2016 Jun 11.
PMID: 27296315DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Director, Clinical Research
- Organization
- 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 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 12, 2014
First Posted
August 13, 2014
Study Start
October 28, 2014
Primary Completion
June 19, 2018
Study Completion
June 19, 2018
Last Updated
May 4, 2020
Results First Posted
June 19, 2019
Record last verified: 2020-04