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Trial · NCT04138277

Outcomes13

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYIncidence of Treatment-emergent Adverse Events (TEAEs), Treatment-emergent Serious Adverse Events (TESAEs), and TEAEs Leading to Discontinuation of Study DrugEntire extension study (mean = 40.5 months on treatment)Open-label extension (OLE) Safety Population defined as all subjects who took at least one dose of ATB200/AT2221 combination treatment in Study ATB200-07ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYChange From Baseline in 6-Minute Walk Distance (6MWD)baseline, Week 208
Motor function was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 39 subjects in the Treatment Continued Group and 18 subjects in the Treatment Switched Group.
metersMEAN
SECONDARYChange From Baseline in Sitting % Predicted Forced Vital Capacity (FVC)baseline, Week 208
Pulmonary function was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 41 subjects in the Treatment Continued Group and 15 subjects in the Treatment Switched Group.
percent predicted FVCMEAN
SECONDARYChange From Baseline in Manual Muscle Testing (MMT) Lower Extremity Scorebaseline, Week 208
Muscle strength was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 35 subjects in the Treatment Continued Group and 15 subjects in the Treatment Switched Group.
score on a scaleMEAN
SECONDARYChange From Baseline in the Total Score for Patient-reported Outcomes Measurement Information System (PROMIS®) - Physical Functionbaseline, Week 208
PROMIS-Physical Function was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 42 subjects in the Treatment Continued Group and 19 subjects in the Treatment Switched Group.
score on a scaleMEAN
SECONDARYChange From Baseline in the Total Score for PROMIS® - Fatiguebaseline, Week 208
PROMIS-Fatigue was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 42 subjects in the Treatment Continued Group and 19 subjects in the Treatment Switched Group.
score on a scaleMEAN
SECONDARYChange From Baseline in Gait, Stairs, Gower, Chair (GSGC) Testbaseline, Week 208
GSGC was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 33 subjects in the Treatment Continued Group and 14 subjects in the Treatment Switched Group.
score on a scaleMEAN
SECONDARYChange From Baseline in EuroQol 5 Dimensions 5 Levels (EQ-5D-5L) Responsesbaseline, Week 208
EQ-5D-5L was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 42 subjects in the Treatment Continued Group and 19 subjects in the Treatment Switched Group.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYChange From Baseline in Overall Physical Well-being (Subject's Global Impression of Change [SGIC], Question 1)baseline, Week 208
The SGIC was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 42 subjects in the Treatment Continued Group and 19 subjects in the Treatment Switched Group.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYChange From Baseline in Physician's Global Impression of Change (PGIC) Overall Statusbaseline, Week 208
The PGIC was evaluated using the Full Analysis Set (consisting of subjects in the study who had both a valid baseline and at least 1 post-baseline assessment for at least 1 of the main efficacy endpoints). Baseline and Month 208 assessment available for 40 subjects in the Treatment Continued Group and 19 subjects in the Treatment Switched Group.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYPercent Change From Baseline in Creatine Kinase (U/L)baseline, Week 208The Full Analysis Set was used in analyses of biomarkers. A total of 40 subjects in the Treatment Continued Group and 18 subjects in the Treatment Switched Group had CK values at Week 208.percent change from baselineMEAN
SECONDARYPercent Change From Baseline in Urine Hex4 (mmol/Mol Creatinine)baseline, Week 208The Full Analysis Set was used in analyses of biomarkers. A total of 39 subjects in the Treatment Continued Group and 17 subjects in the Treatment Switched Group had urine hex4 values at Week 208.percent change from baselineMEAN
SECONDARYProportion of Subjects With Positive Anti-drug Antibodies at Baseline and Week 208baseline, Week 208
In the Treatment Continued group, 76 subjects had immunogenicity data at baseline, and 41 subjects had data at Week 208. In the Treatment Switched group, 36 subjects had immunogenicity data at baseline and 20 subjects had data at Week 208.
ParticipantsCOUNT_OF_PARTICIPANTS

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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