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Trial · NCT04368910

Safety and Efficacy of Pyronaridine Artesunate Vs Chloroquine in Children and Adult Patients With Acute Vivax Malaria

NCT04368910, Phase 3, Terminated, Medicines for Malaria Venture; results first posted 2022-01-26

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Safety and Efficacy of Pyronaridine Artesunate Vs Chloroquine in Children and Adult Patients With Acute Vivax Malaria. Trials, record NCT04368910. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04368910

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Trial

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

Title
Safety and Efficacy of Pyronaridine Artesunate Vs Chloroquine in Children and Adult Patients With Acute Vivax Malaria
NCT number
NCT04368910
Status
Terminated
Phases
Phase 3
Enrollment
30 participants, actual
Lead sponsor
Medicines for Malaria Venture
Conditions
Malaria
Interventions
Pyronaridine - artesunate, Chloroquine
First posted
2020-04-30
Last updated
2022-01-26
Results first posted
2022-01-26
Limitations and caveats
Due to slow recruitment the study was terminated prematurely by the Sponsor after 30 subjects (of the 40 planned) had been included.

Source ClinicalTrials.gov

Registered outcomes8

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

ListOutcomeTime frameDescription
PrimaryCrude Cure Rate on Day 14Day 14
Percentage of subjects with crude cure rate at Day 14, defined as absence of parasitaemia on Day 14, irrespective of body temperature without previously meeting any of the criteria of treatment failure
SecondaryCrude Cure Rate on Day 28Day 28
Percentage of subjects with crude cure rate at Day 28, defined as absence of parasitaemia on Day 28, irrespective of body temperature without previously meeting any of the criteria of treatment failure
SecondaryParasite Clearance Time (PCT)Days 0, 3, 7, 14, 21, 28, 35, and 42 (or on any other day if the subject spontaneously returned within the 42-day period)
Parasite clearance time is defined as the time from first dosing to the time of first blood draw with parasite clearance. Parasite clearance was defined as zero presence of asexual parasites for 2 consecutive negative readings taken between 7 and 25 hours apart
SecondaryFever Clearance Time (FCT)Day 0 and every 8 hours over ≥72 hours following first study drug administration or temperature normalization for ≥2 readings between 7 and 25 hours apart, then at each visit (Days 7, 14, 28 and 42)Fever clearance time is defined as the time from first dosing to the first normal reading of temperature for 2 consecutive normal temperature readings taken between 7 and 25 hours apart
SecondaryPercentage of Patients Who Had Cleared Parasite on Days 1, 2, and 3Days 1, 2, and 3Parasite clearance is defined as at least 2 consecutive negative smears for asexual parasites obtained within an interval of 7 to 25 hours post-dosing
SecondaryPercentage of Patients Who Had Cleared Fever on Days 1, 2, and 3Days 1, 2, and 3Fever clearance is defined as at least 2 consecutive normal body temperature measurements (\<37.5 C axillary/tympanic or \<38.0 C oral/rectal) obtained within an interval of 7 to 25 hours postdosing
SecondaryNumber of Participants With Adverse Events (AEs)Day 0 to 42. Subjects experiencing AEs at Day 42 were followed for up to 30 days after the end of studyNumber of Participants with AEs, including clinically significant laboratory results, electrocardiogram (ECG), vital signs or physical examination abnormalities
OtherCrude Cure Rate on Day 42Day 42
Proportion of subjects with crude cure rate at Day 42, defined as absence of parasitaemia on Day 42, irrespective of body temperature without previously meeting any of the criteria of treatment failure

Outcomes8

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYCrude Cure Rate on Day 14Day 14
Efficacy evaluable population: completed a full course of study medication, did not miss a dose, did not use a concomitant medication that may have interfered with the treatment outcome up to D14, did not have a concomitant disease which may have interfered with the classification of the treatment outcome, did not have major protocol deviations.
percentage of participantsNUMBER
SECONDARYCrude Cure Rate on Day 28Day 28
Efficacy evaluable population: completed a full course of study medication, did not miss a dose, did not use a concomitant medication that may have interfered with the treatment outcome up to D14, did not have a concomitant disease which may have interfered with the classification of the treatment outcome, did not have major protocol deviations.
percentage of participantsNUMBER
SECONDARYParasite Clearance Time (PCT)Days 0, 3, 7, 14, 21, 28, 35, and 42 (or on any other day if the subject spontaneously returned within the 42-day period)
Efficacy evaluable population: completed a full course of study medication, did not miss a dose, did not use a concomitant medication that may have interfered with the treatment outcome up to D14, did not have a concomitant disease which may have interfered with the classification of the treatment outcome, did not have major protocol deviations.
hoursMEDIAN
SECONDARYFever Clearance Time (FCT)Day 0 and every 8 hours over ≥72 hours following first study drug administration or temperature normalization for ≥2 readings between 7 and 25 hours apart, then at each visit (Days 7, 14, 28 and 42)
Efficacy evaluable population: completed a full course of study medication, did not miss a dose, did not use a concomitant medication that may have interfered with the treatment outcome up to D14, did not have a concomitant disease which may have interfered with the classification of the treatment outcome, did not have major protocol deviations.
hoursMEDIAN
SECONDARYPercentage of Patients Who Had Cleared Parasite on Days 1, 2, and 3Days 1, 2, and 3
Efficacy evaluable population: completed a full course of study medication, did not miss a dose, did not use a concomitant medication that may have interfered with the treatment outcome up to D14, did not have a concomitant disease which may have interfered with the classification of the treatment outcome, did not have major protocol deviations.
percentage of participantsNUMBER
SECONDARYPercentage of Patients Who Had Cleared Fever on Days 1, 2, and 3Days 1, 2, and 3
Efficacy evaluable population: completed a full course of study medication, did not miss a dose, did not use a concomitant medication that may have interfered with the treatment outcome up to D14, did not have a concomitant disease which may have interfered with the classification of the treatment outcome, did not have major protocol deviations.
percentage of participantsNUMBER
SECONDARYNumber of Participants With Adverse Events (AEs)Day 0 to 42. Subjects experiencing AEs at Day 42 were followed for up to 30 days after the end of studySafety population, consisting of all randomised subjects who received any amount of study medication; subjects were analysed as treated.ParticipantsCOUNT_OF_PARTICIPANTS
OTHER_PRE_SPECIFIEDCrude Cure Rate on Day 42Day 42
Efficacy evaluable population: completed a full course of study medication, did not miss a dose, did not use a concomitant medication that may have interfered with the treatment outcome up to D14, did not have a concomitant disease which may have interfered with the classification of the treatment outcome, did not have major protocol deviations.
percentage of subjectsNUMBER

Results by group38

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

OutcomeGroupCategoryValueSpreadUnits
Crude Cure Rate on Day 14Pyronaridine - Artesunate10095% Confidence Interval 75.3 to 100.0percentage of participants
Crude Cure Rate on Day 14Chloroquine10095% Confidence Interval 78.2 to 100.0percentage of participants
Crude Cure Rate on Day 28Pyronaridine - Artesunate10095% Confidence Interval 75.3 to 100.0percentage of participants
Crude Cure Rate on Day 28Chloroquine10095% Confidence Interval 78.2 to 100.0percentage of participants
Parasite Clearance Time (PCT)Pyronaridine - Artesunate32.095% Confidence Interval 24.0 to 40.0hours
Parasite Clearance Time (PCT)Chloroquine63.995% Confidence Interval 55.9 to 160.8hours
Fever Clearance Time (FCT)Pyronaridine - Artesunate16.095% Confidence Interval 15.9 to 24.0hours
Fever Clearance Time (FCT)Chloroquine31.995% Confidence Interval 23.5 to 39.8hours
Percentage of Patients Who Had Cleared Parasite on Days 1, 2, and 3Pyronaridine - ArtesunateDay 1 (24h after first dose)30.895% Confidence Interval 5.7 to 55.9percentage of participants
Percentage of Patients Who Had Cleared Parasite on Days 1, 2, and 3ChloroquineDay 1 (24h after first dose)0.095% Confidence Interval 0.0 to 0.0percentage of participants

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPyronaridine - Artesunate15
Overall StudySTARTEDChloroquine15
Overall StudyCOMPLETEDPyronaridine - Artesunate15
Overall StudyCOMPLETEDChloroquine15
Overall StudyNOT COMPLETEDPyronaridine - Artesunate0
Overall StudyNOT COMPLETEDChloroquine0

Adverse events54

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnemiaBlood and lymphatic system disordersPyronaridine - Artesunate1151
otherAnemiaBlood and lymphatic system disordersChloroquine0150
otherLeft ventricular hypertrophyCardiac disordersPyronaridine - Artesunate0150
otherLeft ventricular hypertrophyCardiac disordersChloroquine1151
otherAbdominal pain upperGastrointestinal disordersPyronaridine - Artesunate1151
otherAbdominal pain upperGastrointestinal disordersChloroquine0150
otherDiarrhoeaGastrointestinal disordersPyronaridine - Artesunate1151
otherDiarrhoeaGastrointestinal disordersChloroquine1151
otherDyspepsiaGastrointestinal disordersPyronaridine - Artesunate1151
otherDyspepsiaGastrointestinal disordersChloroquine0150

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPyronaridine - Artesunate015
Total, all-cause mortalityChloroquine015
Total, other adverse eventsPyronaridine - Artesunate1015
Total, other adverse eventsChloroquine1015
Total, serious adverse eventsPyronaridine - Artesunate015
Total, serious adverse eventsChloroquine015

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

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
Pyronaridine - Artesunate vs Chloroquine: deaths from any causeTrial comparisons
Pyronaridine - Artesunate vs Chloroquine: serious adverse eventsTrial 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/NCT04368910

GET https://conductscience.org/api/trials/v1/NCT04368910/results?page=2