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Trial · NCT04425629

Registered outcomes91

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of Participants With Treatment-emergent Serious Adverse Events (SAEs) - [Ph1, Ph2, Ph3 Cohort 1 - Cohort 3]Through Day 29Primary: Phase 1, Phase 3 (Cohort 2 and Cohort 3) Secondary: Phase 2, Phase 3 (Cohort 1)
PrimaryNumber of Participants With Infusion-related Reactions (Ph1, Ph2, Ph3 Cohort 1 - Cohort 3)Through Day 4Primary: Phase 1, Phase 3 (Cohort 2 and Cohort 3) Secondary: Phase 2, Phase 3 (Cohort 1)
PrimaryNumber of Participants With Hypersensitivity Reactions (Ph1, Ph2, Ph3 Cohort 1 - Cohort 3)Through Day 29Primary: Phase 1, Phase 3 (Cohort 2 and Cohort 3) Secondary: Phase 2, Phase 3 (Cohort 1)
Primary
Time-weighted Average Change From Baseline in Viral Load (log10 Copies/mL) From Day 1 to Day 7, as Measured by Quantitative Reverse Transcription Quantitative Polymerase Chain Reaction (RT-qPCR) in Nasopharyngeal (NP) Swab Samples (Ph1, Ph2)
Baseline up to Day 7Primary: Phase 1, Phase 2
PrimaryProportion of Participants With at Least One (≥1) COVID-19-related Hospitalization or All-cause Death (Ph3 Cohort 1- 1.2g vs Placebo)Through Day 29Phase 3 Cohort 1
PrimaryProportion of Participants With at Least One (≥1) COVID-19-related Hospitalization or All-cause Death (Ph3 Cohort 1 - 2.4g vs Placebo)Through Day 29Primary: Phase 3 (Cohort 1)
PrimaryConcentration of REGN10983 + REGN10987 in Serum Over Time (Ph3 Cohort 2)Up to Nominal Sampling Day 28Phase 3 Cohort 2 \[Nominal Sampling Time\] = \[Clinical Study Time (Visit Day - 1)\]
SecondaryTime to COVID-19 Symptoms Resolution (Ph3 Cohort 1 - 1.2g vs Placebo)Up to Day 29Phase 3 Cohort 1
SecondaryTime to COVID-19 Symptoms Resolution (Ph3 Cohort 1 - 2.4g vs Placebo)Through Day 29Phase 3 (Cohort 1)
SecondaryProportion of Participants With ≥1 COVID-19-related Hospitalization or All-cause Death From Day 4 Through Day 29 (Ph3 Cohort 1 - 1.2g vs. Placebo)Day 4 thru Day 29Phase 3 (Cohort 1)
SecondaryProportion of Participants With ≥1 COVID-19-related Hospitalization or All-cause Death From Day 4 Through Day 29 (Ph3 Cohort 1 - 2.4g vs. Placebo)From Day 4 Through Day 29Phase 3 (Cohort 1)
SecondaryChange From Baseline in Viral Load at Each Visit, as Measured by RT-qPCR in Nasopharyngeal Swabs (Next Phase 2 Cohort)Day 5, Day 7, Day 15, Day 29Next Phase 2 Symptomatic
SecondaryTime-weighted Average Change From Baseline in Viral Load (log10 Copies/mL) From Day 1 to Post-baseline Study Days (Ph1, Ph2)Day 1 to Day 29Phase 1, Phase 2
SecondaryPercentage of Participants With ≥1 COVID-19-related Medically-attended Visit Through Day 29 (Ph1, Ph2)Through Day 29Phase 1, Phase 2
SecondaryPercentage of Participants With ≥1 COVID-19 Related Hospitalization, Emergency Room, or Urgent Care Visit Through Day 29 (Ph1, Ph2)Through Day 29Phase 1, Phase 2
SecondaryTime to First Onset of Symptoms Consistent With COVID-19 (Phase 2 Asymptomatic Cohort Only)Up to Day 29Phase 2 Only
SecondaryProportion of Participants With ≥1 COVID-19-related Hospitalization, Emergency Room Visit, or All-cause Death (Ph3 Cohort 1) - Placebo vs. 1.2g IVThrough Day 29Phase 3 Cohort 1 - Placebo vs. 1.2 g IV
SecondaryProportion of Participants With ≥1 COVID-19-related Hospitalization, Emergency Room Visit, or All-cause Death (Ph3 Cohort 1) - Placebo vs. 2.4g IVThrough day 29Phase 3 (Cohort 1)
SecondaryConcentration of REGN10933 + REGN10987 in Serum Over Time (Ph1 Cohort 1, Ph2 Cohort 1, Ph3 Cohort 1 and Cohort 3)Up to Nominal Sampling Day 28Secondary: Phase 1, Phase 2, Phase 3 (Cohort 1 and Cohort 3) - Symptomatic Participants \[Nominal Sampling Time\] = \[Clinical Study Time (Visit Day - 1)\]
SecondaryAssessment of Pharmacokinetic (PK) Parameter: Maximum Serum Concentration Observed (Cmax) of REGN10933+REGN10987 (Phase 1)Through Day 29Phase 1 Only

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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