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Trial · NCT03188666

Outcomes43

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

TypeOutcomeTime framePopulationUnitsMeasured as
SECONDARY
Period 2 vs. Period 1: Change From Week 28 in Number of Active HO Lesions as Assessed by 18^F-NaF PET to Week 56 (Period 2) Versus the Same Participants Between Baseline and Week 28 (Period 1) (AHO COVID-19 mITT)
Week 28, Week 56
COVID-19 mITT: All AHO participants who received a treatment in period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure.
Active lesionsMEAN
SECONDARY
Period 2 vs. Period 1: Change From Week 28 in Number of Active HO Lesions as Assessed by CT Scan at Week 56 (Period 2) Versus the Same Participants Between Baseline and Week 28 (Period 1) (AHO COVID-19 mITT)
Week 28, Week 56
COVID-19 mITT: All AHO participants who received a treatment in period 2 for whom at least 1 post-Week 28 scan is collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure.
Active lesionsMEAN
SECONDARYPeriod 2: Number of New HO Lesions as Assessed by CT at Week 56 Relative to Baseline (AHO COVID-19 mITT)Baseline, Week 56
COVID-19 mITT: All AHO participants who received a treatment in period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 only (Placebo/REGN2477) as planned.
New HO LesionsNUMBER
SECONDARYPeriod 2: Number of New HO Lesions as Assessed by CT Only at Week 56 Relative to Baseline (AHO COVID-19 mITT)Week 56
COVID-19 mITT: All AHO participants who receive a treatment in Period 2 for whom at least 1 post-Week 28 scan is collected and the period between any consecutive doses is less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
New HO LesionsNUMBER
SECONDARYPeriod 2: Percentage of Participants With New HO Lesions as Assessed by CT at Week 56 Relative to Baseline (AHO COVID-19 mITT)Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
Percentage of ParticipantsNUMBER
SECONDARYPeriod 2: Number of New HO Lesions as Assessed by 18^F-NAF PET at Week 56 Relative to Baseline (AHO COVID-19 mITT)Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
New HO LesionsNUMBER
SECONDARYPeriod 2: Percentage of Participants With New HO Lesions as Assessed by 18^F-NaF PET at Week 56 Relative to Baseline (AHO COVID-19 mITT)Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
Percentage of ParticipantsNUMBER
SECONDARYPeriod 2: Total Volume of New HO Lesions as Assessed by CT at Week 56 Relative to Week 28 Scan (AHO COVID-19 mITT)Week 28, Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to baseline for participants on treatment during both periods (REGN2477/REGN2477) as planned.
cubic centimeter (cm^3)MEAN
SECONDARYPeriod 2: Total Lesion Activity (TLA) Assessed by 18^F-NaF PET in New HO Lesions at Week 56 Relative to Week 28 Scan (AHO COVID-19 mITT)Week 28, Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to baseline for participants on treatment during both periods (REGN2477/REGN2477) as planned.
gram (g)MEAN
SECONDARYPeriod 2 vs. Period 1: Percent Change From Week 28 in TLA as Assessed by 18^F-NaF PET to Week 56 (Period 2) Versus the Same Participants Between Baseline and Week 28 (Period 1) (AHO COVID-19 mITT)Week 28, Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure.
Percent ChangeMEAN
SECONDARY
Period 2 vs. Period 1: Percent Change From Week 28 in the Total Volume of HO Lesions as Assessed by CT to Week 56 (Period 2) Versus the Same Participants Between Baseline and Week 28 (Period 1) (AHO COVID-19 mITT)
Week 28, Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure.
Percent ChangeMEAN
SECONDARYPeriod 2: TLA in New HO Lesions as Assessed by 18^F-NaF PET at Week 56 Relative to Baseline (AHO COVID-19 mITT)Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
gram (g)MEAN
SECONDARYPeriod 2: Total Volume of New HO Lesions as Assessed by CT Only at Week 56 Relative to Baseline (AHO COVID-19 mITT)Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
cubic centimeter (cm^3)MEAN
SECONDARYPeriod 2: Percent Change From Baseline in TLA as Assessed by 18^F-NaF PET to Week 56 (AHO COVID-19 mITT)Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
Percent ChangeMEAN
SECONDARYPeriod 2: Percent Change From Baseline in the Total Volume of HO Lesions as Assessed by CT to Week 56 (AHO COVID-19 mITT)Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
Percent ChangeMEAN
SECONDARYPeriod 2: Percent Change From Week 28 in SUVmax as Assessed by 18^F-NaF to Week 56 (AHO COVID-19 mITT)Week 28 to Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to baseline for participants on treatment during both periods (REGN2477/REGN2477) as planned.
Percent ChangeMEAN
SECONDARYPeriod 2: Percent Change From Baseline in 18^F-NaF PET SUVmax to Week 56 (AHO COVID-19 mITT)Baseline, Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Separate analyses were conducted from week 56 relative to week 28 for participants on treatment during period 2 (Placebo/REGN2477) as planned.
Percent ChangeMEAN
SECONDARYPeriod 2: Daily Average Pain Due to FOP Measured Using the Daily NRSWeek 28 up to Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Overall number of participants analyzed are the participants who were evaluable for this outcome measure. Data were planned to be collected and analyzed only for participants switching to REGN2477 in period 2 for this outcome measure.
Score on a ScaleMEAN
SECONDARYPeriod 2: Percentage of Participants With Flare-ups Assessed by Participant E-diaryWeek 28 to Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Data were planned to be collected and analyzed only for participants switching to REGN2477 in period 2 for this outcome measure.
Percentage of ParticipantsNUMBER
SECONDARYPeriod 2: Percentage of Participants With Investigator-assessed Flare-upsWeek 28 to Week 56
COVID-19 mITT: All AHO participants who received a treatment in Period 2 for whom at least 1 post-Week 28 scan was collected and the period between any consecutive doses was less than 9 weeks (63 days) before the 1st post-week 28 scan. Data were planned to be collected and analyzed only for participants switching to REGN2477 in period 2 for this outcome measure.
Percentage of ParticipantsNUMBER

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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