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Trial · NCT01959295

Phase III Study of ASP2151 in Herpes Simplex Patients

NCT01959295, Phase 3, Completed, Maruho Co., Ltd.; results first posted 2024-10-09

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Phase III Study of ASP2151 in Herpes Simplex Patients. Trials, record NCT01959295. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01959295

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Trial

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

Title
Phase III Study of ASP2151 in Herpes Simplex Patients
NCT number
NCT01959295
Status
Completed
Phases
Phase 3
Enrollment
468 participants, actual
Lead sponsor
Maruho Co., Ltd.
Conditions
Herpes Simplex
Interventions
ASP2151, ASP2151 placebo
First posted
2013-10-10
Last updated
2024-10-09
Results first posted
2024-10-09

Source ClinicalTrials.gov

Registered outcomes4

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

ListOutcomeTime frameDescription
PrimaryPercentage of Participants With Healing by Day 88daysThe percentage of participants achieving lesion healing by Day 8 of study treatment
SecondaryTime to Healing29days
The criteria for determining healing are as follows: 1. A condition where all erythematous and papular lesions, vesicular and pustular lesions, and erosive and ulcerative lesions have been resolved, and either the complete resolution of crusts or the complete epithelialization beneath any remaining crusts has been achieved. 2. In participants where no crust has formed, a condition characterized by the epithelialization of erosions/ulcers formation in mucosal lesions and potentially other affected areas. 3. In participants where no vesicles or pustules have formed, a condition characterized by the complete resolution of all erythematous and papular lesions
SecondaryTime to Complete Crusting29days
The criteria for complete crust formation are outlined as follows: 1. A condition where all erythematous and papular lesions, vesicular and pustular lesions, and erosive and ulcerative lesions have been resolved, and all rashes are crusted (epithelialization beneath is not required). 2. In participants where no crust has formed, a condition characterized by the epithelialization of erosions/ulcers formation in mucosal lesions and potentially other affected areas. 3. In participants where no vesicles or pustules have formed, a condition characterized by the complete resolution of all erythematous and papular lesions.
SecondaryTime to Virus Disappearance29days
The day of viral disappearance is the first day on which the results of viral isolation continuously show 'HSV negative' until the final implementation day. The negative means that the results of the isolation and culture are negative, or the isolation and culture has not been performed due to complete crusting or healing of the lesion site.

Outcomes4

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Participants With Healing by Day 88days
The full analysis set (FAS). The FAS was defined as patients who were diagnosed with labial/facial herpes or recurrent genital herpes at the time of case registration, subsequently received the study drug at least once, and had any efficacy variable measured, except for those found not to have herpes simplex after study drug administration.
Percentage of ParticipantsNUMBER
SECONDARYTime to Healing29days
The full analysis set (FAS). The FAS was defined as patients who were diagnosed with labial/facial herpes or recurrent genital herpes at the time of case registration, subsequently received the study drug at least once, and had any efficacy variable measured, except for those found not to have herpes simplex after study drug administration.
dayMEDIAN
SECONDARYTime to Complete Crusting29days
The full analysis set (FAS). The FAS was defined as patients who were diagnosed with labial/facial herpes or recurrent genital herpes at the time of case registration, subsequently received the study drug at least once, and had any efficacy variable measured, except for those found not to have herpes simplex after study drug administration.
dayMEDIAN
SECONDARYTime to Virus Disappearance29days
The full analysis set (FAS). The FAS was defined as patients who were diagnosed with labial/facial herpes or recurrent genital herpes at the time of case registration, subsequently received the study drug at least once, and had any efficacy variable measured, except for those found not to have herpes simplex after study drug administration.
dayMEDIAN

Results by group8

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

OutcomeGroupCategoryValueSpreadUnits
Percentage of Participants With Healing by Day 8ASP215166.4Percentage of Participants
Percentage of Participants With Healing by Day 8ASP2151 Placebo69.5Percentage of Participants
Time to HealingASP21518Inter-Quartile Range 6 to 9day
Time to HealingASP2151 Placebo8Inter-Quartile Range 6 to 9day
Time to Complete CrustingASP21516Inter-Quartile Range 5 to 8day
Time to Complete CrustingASP2151 Placebo6Inter-Quartile Range 5 to 8day
Time to Virus DisappearanceASP21514Inter-Quartile Range 3 to 6day
Time to Virus DisappearanceASP2151 Placebo5Inter-Quartile Range 4 to 6day

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDASP2151311
Overall StudySTARTEDASP2151 Placebo157
Overall StudyCOMPLETEDASP2151278
Overall StudyCOMPLETEDASP2151 Placebo140
Overall StudyNOT COMPLETEDASP215133
Overall StudyNOT COMPLETEDASP2151 Placebo17

Adverse events14

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherGenital herpesInfections and infestationsASP215111309
otherGenital herpesInfections and infestationsASP2151 Placebo3157
otherNasopharyngitisInfections and infestationsASP215115309
otherNasopharyngitisInfections and infestationsASP2151 Placebo5157
otherOral herpesInfections and infestationsASP215113309
otherOral herpesInfections and infestationsASP2151 Placebo8157
otherBeta-N-acetyl-D-glucosaminidase increasedInvestigationsASP21519309
otherBeta-N-acetyl-D-glucosaminidase increasedInvestigationsASP2151 Placebo2157
otherElectrocardiogram QT prolongedInvestigationsASP21513309
otherElectrocardiogram QT prolongedInvestigationsASP2151 Placebo4157

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityASP2151128309
Total, all-cause mortalityASP2151 Placebo59157
Total, other adverse eventsASP215169309
Total, other adverse eventsASP2151 Placebo29157
Total, serious adverse eventsASP21510309
Total, serious adverse eventsASP2151 Placebo0157

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
ASP2151 vs ASP2151 Placebo: deaths from any causeTrial comparisons
ASP2151 vs ASP2151 Placebo: 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/NCT01959295

GET https://conductscience.org/api/trials/v1/NCT01959295/registered