Long-Term Safety and Efficacy of Repeat Treatments of DaxibotulinumtoxinA for Injection in Adults With Isolated Cervical Dystonia (ASPEN-OLS) (ASPEN-OLS)
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|ClinicalTrials.gov Identifier: NCT03617367|
Recruitment Status : Completed
First Posted : August 6, 2018
Last Update Posted : January 28, 2022
|Condition or disease||Intervention/treatment||Phase|
|Cervical Dystonia||Biological: daxibotulinumtoxinA for injection||Phase 3|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||357 participants|
|Intervention Model:||Single Group Assignment|
|Intervention Model Description:||This is a Phase 3, open-label, multi-center trial to evaluate the long-term safety, efficacy, and immunogenicity of up to four continuous treatment cycles of daxibotulinumtoxinA (DAXI) for injection with up to four different doses in adults with isolated cervical dystonia (CD).|
|Masking:||None (Open Label)|
|Masking Description:||not applicable (open label)|
|Official Title:||A Phase 3, Open-Label, Multi-Center Trial to Evaluate the Long-Term Safety and Efficacy of Repeat Treatments of DaxibotulinumtoxinA for Injection in Adults With Isolated Cervical Dystonia (ASPEN-OLS)|
|Actual Study Start Date :||September 5, 2018|
|Actual Primary Completion Date :||May 25, 2021|
|Actual Study Completion Date :||May 25, 2021|
Experimental: daxibotulinumtoxinA (DAXI) for injection
DAXI for injection
Biological: daxibotulinumtoxinA for injection
DaxibotulinumtoxinA for injection is a sterile, white to off-white lyophilized product containing the active ingredient, daxibotulinumtoxinA, and inactive ingredients to be reconstituted with sterile, non-preserved, 0.9% sodium chloride solution saline.
- Long Term Safety of patients determined by the incidence of treatment-emergent adverse events [ Time Frame: Up to 52 Weeks ]Evaluation of adverse events and serious adverse events, from multiple continuous treatments of DAXI for injection, over the course of the study.
- The proportion of subjects with at least moderate improvement on the Clinician Global Impression of Change (CGIC) at Weeks 4 or 6 for Treatment Cycles 1, 2, 3, and 4 [ Time Frame: Weeks 4 and 6 of treatment cycles 1, 2, 3, and 4 (12 - 52 weeks duration each) ]The CGIC is an investigator-reported assessment of the global clinical change in CD since study treatment administration. The CGIC uses a 7-point Likert scale ranging from +3 (very much improved) to -3 (very much worse), and will be assessed by the investigator at the Week 4 and Week 6 visits.
- The average of the change from Baseline in the TWSTRS Total Score at Weeks 4 and 6 for Treatment Cycles 1, 2, 3, and 4 [Time Frame: Weeks 4 and 6 of treatment cycles 1, 2, 3, and 4 (12 - 52 weeks duration each)] [ Time Frame: Weeks 4 and 6 of treatment cycles 1, 2, 3, and 4 (12 - 52 weeks duration each) ]The difference in TWSTRS-Total score between the Baseline and average of Weeks 4 and 6 for each treatment cycle will be determined for each subject. The TWSTRS is an assessment scale used to measure the impact of CD on subjects. TWSTRS-total score has a minimum score of 0 and a maximum score of 85, where higher scores represent worse outcomes. It is made up of the summation of 3 subscales: the Torticollis Severity Scale (minimum score of 0, maximum score of 35), the Disability Scale (minimum score of 0, maximum score of 30), and the Pain Scale (minimum score of 0, maximum score of 20).
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): NCT03617367