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Trial ยท NCT04602000

A Phase 2/3 Study to Evaluate the Efficacy and Safety of CT-P59 in Patients With Mild to Moderate SARS-CoV-2 Infection

NCT04602000, Phase 2, Phase 3, Completed, Celltrion; results first posted 2022-07-20

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Phase 2/3 Study to Evaluate the Efficacy and Safety of CT-P59 in Patients With Mild to Moderate SARS-CoV-2 Infection. Trials, record NCT04602000. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04602000

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Phase 2/3 Study to Evaluate the Efficacy and Safety of CT-P59 in Patients With Mild to Moderate SARS-CoV-2 Infection
NCT number
NCT04602000
Status
Completed
Phases
Phase 2, Phase 3
Enrollment
1,642 participants, actual
Lead sponsor
Celltrion
Conditions
SARS-CoV-2 Infection
Interventions
CT-P59, CT-P59, Placebo, CT-P59, Placebo
First posted
2020-10-26
Last updated
2022-07-20
Other registries' IDs
eudract:2020-003369-20
Results first posted
2022-07-20

Source ClinicalTrials.gov

Registered outcomes21

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

ListOutcomeTime frameDescription
PrimaryProportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection (Part 1)Up to Day 28
To assess the clinically meaningful therapeutic efficacy of CT-P59 as determined by proportion of patients with clinical symptom requiring hospitalization, oxygen therapy, or experiencing mortality due to SARS-CoV-2 infection up to Day 28
PrimaryProportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)Up to Day 14To assess the potential therapeutic efficacy of CT-P59 as determined by proportion of negative conversion in nasopharyngeal swab specimen based on RT-qPCR up to Day 14
PrimaryTime to Negative Conversion in Nasopharyngeal Swab Specimen (Part 1)Up to Day 14To evaluate the therapeutic efficacy of CT-P59 as determined by time to negative conversion by RT-qPCR up to Day 14
PrimaryTime to Clinical Recovery (Part 1)Up to Day 14
To assess the potential therapeutic efficacy of CT-P59 as determined by time to clinical recovery up to Day 14. Clinical recovery was defined as all symptoms on the SARS-CoV-2 Infection Symptom Checklist 1 being recorded as 'absent' or 'mild' in intensity for at least 48 hours. SARS-CoV-2 Infection Symptom Checklist 1 consisted of 7 symptoms (feeling feverish, cough, shortness of breath or difficulty breathing, sore throat, body pain or muscle pain, fatigue, and headache) and the intensity of patient's self-aware for each SARS-CoV-2 infection symptom (absent \[0\], mild \[1\]. moderate \[2\], and severe \[3\]). To meet the clinical recovery, symptoms 'severe' or 'moderate' in intensity at baseline should be changed to 'mild' or 'absent', or symptoms 'mild' in intensity at baseline should be changed to 'absent', after the study drug administration. Symptoms "absent" in intensity at baseline should maintain as "absent" for at least 48 hours.
PrimaryProportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection up to Day 28 in High-risk Patients (Part 2)Up to Day 28
To demonstrate the clinically meaningful therapeutic efficacy of CT-P59 as determined by proportion of patients with clinical symptom requiring hospitalization, oxygen therapy, or experiencing mortality due to SARS-CoV-2 infection up to Day 28 in high-risk patients
SecondaryProportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection up to Day 28 in All Randomized Patients (Part 2)Up to Day 28
To demonstrate the clinically meaningful therapeutic efficacy of CT-P59 as determined by proportion of patients with clinical symptom requiring hospitalization, oxygen therapy, or experiencing mortality due to SARS-CoV-2 infection up to Day 28 in all randomized patients
SecondaryTime to Clinical Recovery up to Day 14 in High-risk Patients (Part 2)Up to Day 14
To assess the potential therapeutic efficacy of CT-P59 as determined by time to clinical recovery up to Day 14 in high-risk patients. Clinical recovery was defined as all symptoms on the SARS-CoV-2 Infection Symptom Checklist 1 being recorded as 'absent' or 'mild' in intensity for at least 48 hours. SARS-CoV-2 Infection Symptom Checklist 1 consisted of 7 symptoms (feeling feverish, cough, shortness of breath or difficulty breathing, sore throat, body pain or muscle pain, fatigue, and headache) and the intensity of patient's self-aware for each SARS-CoV-2 infection symptom (absent \[0\], mild \[1\]. moderate \[2\], and severe \[3\]). To meet the clinical recovery, symptoms 'severe' or 'moderate' in intensity at baseline should be changed to 'mild' or 'absent', or symptoms 'mild' in intensity at baseline should be changed to 'absent', after the study drug administration. Symptoms "absent" in intensity at baseline should maintain as "absent" for at least 48 hours.
SecondaryTime to Clinical Recovery up to Day 14 in All Randomized Patients (Part 2)Up to Day 14
To assess the potential therapeutic efficacy of CT-P59 as determined by time to clinical recovery up to Day 14 in all randomized patients. Clinical recovery was defined as all symptoms on the SARS-CoV-2 Infection Symptom Checklist 1 being recorded as 'absent' or 'mild' in intensity for at least 48 hours. SARS-CoV-2 Infection Symptom Checklist 1 consisted of 7 symptoms (feeling feverish, cough, shortness of breath or difficulty breathing, sore throat, body pain or muscle pain, fatigue, and headache) and the intensity of patient's self-aware for each SARS-CoV-2 infection symptom (absent \[0\], mild \[1\]. moderate \[2\], and severe \[3\]). To meet the clinical recovery, symptoms 'severe' or 'moderate' in intensity at baseline should be changed to 'mild' or 'absent', or symptoms 'mild' in intensity at baseline should be changed to 'absent', after the study drug administration. Symptoms "absent" in intensity at baseline should maintain as "absent" for at least 48 hours.
SecondaryProportion of Patients With Hospital Admission Due to SARS-CoV-2 Infection (Part 1 and Part 2)Up to Day 28To evaluate the additional efficacy of CT-P59
SecondaryProportion of Patients Requiring Supplemental Oxygen Due to SARS-CoV-2 Infection (Part 1 and Part 2)Up to Day 28To evaluate the additional efficacy of CT-P59

Outcomes21

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYProportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection (Part 1)Up to Day 28
ITTI Set (defined as all randomly assigned patients with confirmed SARS-CoV-2 infection by pre-infusion result \[Day 1\] of RT-qPCR and who received a complete or partial dose of the study drug; Patient who had confirmed negative or missing at Day 1 and positive at Day 2 was also included)
ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYProportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)Up to Day 14
ITTI Set (defined as all randomly assigned patients with confirmed SARS-CoV-2 infection by pre-infusion result \[Day 1\] of RT-qPCR and who received a complete or partial dose of the study drug; Patient who had confirmed negative or missing at Day 1 and positive at Day 2 was also included)
ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYTime to Negative Conversion in Nasopharyngeal Swab Specimen (Part 1)Up to Day 14
ITTI Set (defined as all randomly assigned patients with confirmed SARS-CoV-2 infection by pre-infusion result \[Day 1\] of RT-qPCR and who received a complete or partial dose of the study drug; Patient who had confirmed negative or missing at Day 1 and positive at Day 2 was also included)
daysMEDIAN
PRIMARYTime to Clinical Recovery (Part 1)Up to Day 14
ITTI Set (defined as all randomly assigned patients with confirmed SARS-CoV-2 infection by pre-infusion result \[Day 1\] of RT-qPCR and who received a complete or partial dose of the study drug; Patient who had confirmed negative or missing at Day 1 and positive at Day 2 was also included; Patients who have absent for all symptoms or at least one missing at baseline are excluded.)
daysMEDIAN
PRIMARYProportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection up to Day 28 in High-risk Patients (Part 2)Up to Day 28
ITT Set - High Risk (defined as all randomly assigned patients to the study drug, who were at high-risk for progressing to severe COVID-19 and/or hospitalization and who met at least 1 of the high-risk criteria)
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYProportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection up to Day 28 in All Randomized Patients (Part 2)Up to Day 28ITT Set (defined as all randomly assigned patients to the study drug)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYTime to Clinical Recovery up to Day 14 in High-risk Patients (Part 2)Up to Day 14
ITT Set - High Risk (defined as all randomly assigned patients to the study drug, who were at high-risk for progressing to severe COVID-19 and/or hospitalization and who met at least 1 of the high-risk criteria; Patient who reported at least 1 symptom at baseline was included)
daysMEDIAN
SECONDARYTime to Clinical Recovery up to Day 14 in All Randomized Patients (Part 2)Up to Day 14ITT Set (defined as all randomly assigned patients to the study drug; Patient who reported at least 1 symptom at baseline was included)daysMEDIAN
SECONDARYProportion of Patients With Hospital Admission Due to SARS-CoV-2 Infection (Part 1 and Part 2)Up to Day 28
ITTI Set for Part 1 (defined as all randomly assigned patients with confirmed SARS-CoV-2 infection by pre-infusion result \[Day 1\] of RT-qPCR and who received a complete or partial dose of the study drug; Patient who had confirmed negative or missing at Day 1 and positive at Day 2 was also included) and ITT Set for Part 2 (defined as all randomly assigned patients to study drug)
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYProportion of Patients Requiring Supplemental Oxygen Due to SARS-CoV-2 Infection (Part 1 and Part 2)Up to Day 28
ITTI Set for Part 1 (defined as all randomly assigned patients with confirmed SARS-CoV-2 infection by pre-infusion result \[Day 1\] of RT-qPCR and who received a complete or partial dose of the study drug; Patient who had confirmed negative or missing at Day 1 and positive at Day 2 was also included) and ITT Set for Part 2 (defined as all randomly assigned patients to study drug)
ParticipantsCOUNT_OF_PARTICIPANTS

Results by group167

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Proportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection (Part 1)CT-P59 40 mg/kg Group (Part 1)4Participants
Proportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection (Part 1)CT-P59 80 mg/kg Group (Part 1)5Participants
Proportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection (Part 1)Placebo Group (Part 1)9Participants
Proportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)CT-P59 40 mg/kg Group (Part 1)Day 20Participants
Proportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)CT-P59 80 mg/kg Group (Part 1)Day 21Participants
Proportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)Placebo Group (Part 1)Day 20Participants
Proportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)CT-P59 40 mg/kg Group (Part 1)Day 34Participants
Proportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)CT-P59 80 mg/kg Group (Part 1)Day 34Participants
Proportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)Placebo Group (Part 1)Day 33Participants
Proportion of Patients With Negative Conversion in Nasopharyngeal Swab Specimen Based on RT-qPCR at Each Visit (Part 1)CT-P59 40 mg/kg Group (Part 1)Day 42Participants

Participant flow15

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDCT-P59 40 mg/kg Group (Part 1)105
Overall StudySTARTEDCT-P59 80 mg/kg Group (Part 1)111
Overall StudySTARTEDPlacebo Group (Part 1)111
Overall StudySTARTEDCT-P59 40 mg/kg Group (Part 2)656
Overall StudySTARTEDPlacebo Group (Part 2)659
Overall StudyCOMPLETEDCT-P59 40 mg/kg Group (Part 1)97
Overall StudyCOMPLETEDCT-P59 80 mg/kg Group (Part 1)103
Overall StudyCOMPLETEDPlacebo Group (Part 1)105
Overall StudyCOMPLETEDCT-P59 40 mg/kg Group (Part 2)618
Overall StudyCOMPLETEDPlacebo Group (Part 2)608

Adverse events140

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherLeukopeniaBlood and lymphatic system disordersCT-P59 40 mg/kg Group (Part 1)31053
otherLeukopeniaBlood and lymphatic system disordersCT-P59 80 mg/kg Group (Part 1)31103
otherLeukopeniaBlood and lymphatic system disordersPlacebo Group (Part 1)01100
otherLeukopeniaBlood and lymphatic system disordersCT-P59 40 mg/kg Group (Part 2)66526
otherLeukopeniaBlood and lymphatic system disordersPlacebo Group (Part 2)1265012
otherThrombocytosisBlood and lymphatic system disordersCT-P59 40 mg/kg Group (Part 1)31053
otherThrombocytosisBlood and lymphatic system disordersCT-P59 80 mg/kg Group (Part 1)11101
otherThrombocytosisBlood and lymphatic system disordersPlacebo Group (Part 1)21102
otherThrombocytosisBlood and lymphatic system disordersCT-P59 40 mg/kg Group (Part 2)1165211
otherThrombocytosisBlood and lymphatic system disordersPlacebo Group (Part 2)56505

Adverse event totals15

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityCT-P59 40 mg/kg Group (Part 1)0105
Total, all-cause mortalityCT-P59 80 mg/kg Group (Part 1)0110
Total, all-cause mortalityPlacebo Group (Part 1)0110
Total, all-cause mortalityCT-P59 40 mg/kg Group (Part 2)1652
Total, all-cause mortalityPlacebo Group (Part 2)2650
Total, other adverse eventsCT-P59 40 mg/kg Group (Part 1)19105
Total, other adverse eventsCT-P59 80 mg/kg Group (Part 1)18110
Total, other adverse eventsPlacebo Group (Part 1)17110
Total, other adverse eventsCT-P59 40 mg/kg Group (Part 2)119652
Total, other adverse eventsPlacebo Group (Part 2)128650

Papers4

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
34473343DERIVEDPubMed
35295819DERIVEDPubMed
35713300DERIVEDPubMed
36043180DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
CT-P59 40 mg/kg Group (Part 2) vs Placebo Group (Part 2): Proportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection up to Day 28 in High-risk Patients (Part 2)
Trial comparisons
CT-P59 40 mg/kg Group (Part 2) vs Placebo Group (Part 2): Proportion of Patients With Clinical Symptom Requiring Hospitalization, Oxygen Therapy, or Experiencing Mortality Due to SARS-CoV-2 Infection up to Day 28 in All Randomized Patients (Part 2)
Trial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

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.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT04602000

GET https://conductscience.org/api/trials/v1/NCT04602000/registered?page=2