First Time Use of SD-809 in Huntington Disease (First-HD)
![]() |
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: NCT01795859 |
Recruitment Status :
Completed
First Posted : February 21, 2013
Results First Posted : August 11, 2017
Last Update Posted : September 20, 2017
|
- Study Details
- Tabular View
- Study Results
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Chorea | Drug: SD-809 Drug: Placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 90 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Randomized Double-Blind, Placebo-Controlled Study of SD-809 Extended Release for the Treatment of Chorea Associated With Huntington Disease |
Actual Study Start Date : | August 5, 2013 |
Actual Primary Completion Date : | December 5, 2014 |
Actual Study Completion Date : | December 5, 2014 |

Arm | Intervention/treatment |
---|---|
Experimental: SD-809 ER Tablets
SD-809 ER tablets are available in three dose strengths: 6, 9 and 12 mg, all of which are identical in size, shape and color (white). All are administered three times a day, with the 6 mg final dose is placebo.
|
Drug: SD-809
SD-809 tablets are available in three dose strengths: 6, 9 and 12 mg, all of which are identical in size, shape and color (white).
Other Name: deutetrabenazine Drug: Placebo Placebo tablets are identical in appearance to SD-809 tablets. |
Experimental: SD-809 Tablets
SD-809 tablets are available in three dose strengths: 6, 9 and 12 mg, all of which are identical in size, shape and color (white). All are administered three times a day, with the 6 mg final dose is placebo.
|
Drug: SD-809
SD-809 tablets are available in three dose strengths: 6, 9 and 12 mg, all of which are identical in size, shape and color (white).
Other Name: deutetrabenazine Drug: Placebo Placebo tablets are identical in appearance to SD-809 tablets. |
- Change From Baseline (Average of Screening and Day 0) in the Average TMC Scores From Weeks 9 & 12 [ Time Frame: Screening, Day 0, Weeks 9, 12 ]Total TMC score is a sum of chorea scores which range 0-28, with a decrease indicating improvement in chorea
- Number of Participants With Treatment Success at the End of Therapy as Measured by the Patient Global Impression of Change (PGIC) [ Time Frame: 12 weeks ]A treatment success is defined as Much or Very Much Improved at the Week 12 visit. The PGIC is a 7-point Likert Scale, ranging from very much worse to very much improved
- Number of Participants With Treatment Success at the End of Therapy Based on Clinical Global Impression of Change (CGIC) [ Time Frame: 12 weeks ]A treatment success is defined as Much or Very Much Improved at the Week 12 visit. The PGIC is a 7-point Likert Scale, ranging from very much worse to very much improved. The clinician was asked to comment about the subject.
- Change in the Short Form 36 Health Survey (SF-36) Physical Functioning Score (Based on Items 3a to 3j) From Baseline to Week 12 [ Time Frame: Baseline, 12 weeks ]Change in the Short Form 36 Health Survey (SF-36) physical functioning score (based on items 3a to 3j) from Baseline to Week 12. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
- Change in Berg Balance Test (BBT) [ Time Frame: Baseline, 12 weeks ]The Berg Balance Test (BBT) is a 14-item assessment of sitting, standing, transferring, and turning. Each task ranging from standing up from a sitting position, to standing on one foot each task is given a score of zero (unable) to four (independent), and the final measure is the sum of all of the scores.The scale range, which is 0-56, with higher scores indicating better balance/lower fall risk.

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.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Subject is at least 18 years of age or the age of majority (whichever is older) at Screening.
- Subject has been diagnosed with manifest HD
- Subject is able to swallow study medication whole.
- Female subjects of childbearing potential agree to use an acceptable method of contraception from screening through study completion.
- The subject has a reliable caregiver who interacts with the patient on a daily basis, oversees study drug administration, assures attendance at study visits and participates in evaluations, as required.
- Subject is able to ambulate without assistance for at least 20 yards (Note: The use of assistive devices (i.e., walker, cane) is permitted during ambulation).
Exclusion Criteria:
- Subject has a serious untreated or under-treated psychiatric illness, such as depression, at Screening or Baseline.
- Subject has active suicidal ideation at Screening or Baseline.
- Subject has history of suicidal behavior at Screening or Baseline:
- Subject has evidence for depression at Screening or Baseline.
- Subject has an unstable or serious medical or psychiatric illness at Screening or Baseline.
- Subject has been recently exposed to tetrabenazine.
-
Subject has received any of the following concomitant medications within 30 days of Screening or Baseline:
- Antipsychotics
- Metoclopramide
- Monoamine oxidase inhibitors (MAOI)
- Levodopa or dopamine agonists
- Reserpine
- Amantadine
- Memantine
- Subject has significantly impaired swallowing function at Screening.
- Subject has significantly impaired speaking at Screening.
- Subject requires treatment with drugs known to prolong the QT interval.
- Subject has a prolonged QT interval on 12-lead ECG at Screening.
- Subject has evidence of hepatic impairment at Screening.
- Subject has evidence of significant renal impairment at Screening.
- Subject has known allergy to any of the components of study medication.
- Subject has participated in an investigational drug or device trial within 30 days (or 5 drug half-lives) of Screening, whichever is longer.
- Subject is pregnant or breast-feeding at Screening or Baseline.
- Subject acknowledges present use of illicit drugs at Screening.
- Subject has a history of alcohol or substance abuse in the previous 12 months.

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): NCT01795859

Responsible Party: | Teva Pharmaceutical Industries |
ClinicalTrials.gov Identifier: | NCT01795859 |
Other Study ID Numbers: |
SD-809-C-15 |
First Posted: | February 21, 2013 Key Record Dates |
Results First Posted: | August 11, 2017 |
Last Update Posted: | September 20, 2017 |
Last Verified: | August 2017 |
Huntington disease Chorea Tetrabenazine |
Huntington Disease Chorea Basal Ganglia Diseases Brain Diseases Central Nervous System Diseases Nervous System Diseases Dementia Dyskinesias |
Movement Disorders Heredodegenerative Disorders, Nervous System Neurodegenerative Diseases Genetic Diseases, Inborn Cognition Disorders Neurocognitive Disorders Mental Disorders Neurologic Manifestations |