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Trial · NCT02855125

A Randomized Phase 2 Trial of TAS-114 in Combination With S-1 Versus S-1

NCT02855125, Phase 2, Completed, Taiho Oncology, Inc.; results first posted 2021-12-23

3 sourcestrials-2026-11-12-0.4.0

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ConductScience Library. A Randomized Phase 2 Trial of TAS-114 in Combination With S-1 Versus S-1. Trials, record NCT02855125. Release trials-2026-11-12-0.4.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT02855125

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Trial

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

Title
A Randomized Phase 2 Trial of TAS-114 in Combination With S-1 Versus S-1
NCT number
NCT02855125
Status
Completed
Phases
Phase 2
Enrollment
128 participants, actual
Lead sponsor
Taiho Oncology, Inc.
Conditions
Advanced or Metastatic Non-small Cell Lung Cancer
Interventions
TAS-114, S-1
First posted
2016-08-04
Last updated
2024-09-19
Other registries' IDs
eudract:2016-001806-40
Results first posted
2021-12-23

Source ClinicalTrials.gov

Registered outcomes6

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

ListOutcomeTime frameDescription
PrimaryProgression-free Survival (PFS) Based on Central Independent ReviewFrom date of randomization or until date of disease progression or death whichever occurred first (approximately up to 13 months)
Progression-free survival was defined as the time (in months) from the day of randomization to the start of radiologic disease progression or death (any cause), whichever occurred first. Response assessments were made based on Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1). As per RECIST 1.1 criteria, progressive disease (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 millimeters (mm). (Note: the appearance of one or more new lesions was also considered progressions). Participants who did not have disease progression or died were censored at the last known time that the participant was progression free.
SecondaryOverall Survival (OS)From date of randomization until death (approximately up to 15 months)
OS was defined as the time from the first dose of the study treatment to death from any cause. Participants who were alive at the end of study were censored at the last date the participant was known to be alive. OS was estimated from Kaplan-Meier method.
SecondaryOverall Response Rate (ORR) Based on Central Independent ReviewFrom date of first dose of study drug to the date of first documentation of progression or death (approximately up to 13 months)
ORR was defined as the percentage of participants with objective evidence of complete response (CR) or partial response (PR) per response evaluation criteria in solid tumors (RECIST) version 1.1. CR was defined as the disappearance of all target lesions and non-target lesions and normalization of tumor marker level. Any pathological and non-pathological lymph nodes must have reduction in short axis to less than (\<) 10 mm. PR was defined as at least a 30 percent (%) decrease in the sum of diameters of the target lesions, taking as a reference the baseline sum diameters.
SecondaryDisease Control Rate (DCR) Based on Central Independent ReviewFrom date of first dose of study drug to the date of first documentation of progression or death (approximately up to 13 months)
DCR was defined as the percentage of participants with objective evidence CR, PR, or stable disease (SD). Based on the central review of tumor assessments per RECIST, version 1.1. CR was defined as disappearance of all target lesions. Reduction in any pathological lymph nodes in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of the target lesions, taking as a reference the baseline sum diameters. SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as a reference the smallest sum diameters during study.
SecondaryDuration of Response (DR) Based on Central Independent ReviewFrom date of first response to the date of first documentation of progression or death (approximately up to 13 months)
DR was derived for participants with objective evidence of PR or CR. DR was defined as the time (in months) from the first documentation of response (CR or PR) to the first documentation of objective tumor progression or death due to any cause. Participants who were alive and progression-free as of the analysis cut-off date were censored at their last evaluable tumor response assessment before initiation of any new anticancer treatment.
SecondaryNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)From first dose of study drug up to 30 days after the last dose of study drug (approximately up to 13 months)
An adverse event (AE) was defined as any untoward medical condition that occurs in a participants while participating in a clinical study and does not necessarily have a causal relationship with the use of the study treatment. A serious adverse event (SAE) was defined as any untoward medical occurrence that resulted in any of the following outcomes: death, life-threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. TEAEs were defined as AEs that developed or worsened during the TEAE period which was defined as the period from the time of first dose of study treatment until 30 days after last dose of study treatment. AEs included both serious and non- serious adverse events.

Outcomes6

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYProgression-free Survival (PFS) Based on Central Independent ReviewFrom date of randomization or until date of disease progression or death whichever occurred first (approximately up to 13 months)Intent-to-Treat (ITT) population included all participants randomized in the study, regardless of whether they actually received any study treatment (TAS-114 or S-1) or not.monthsMEDIAN
SECONDARYOverall Survival (OS)From date of randomization until death (approximately up to 15 months)ITT population.monthsMEDIAN
SECONDARYOverall Response Rate (ORR) Based on Central Independent ReviewFrom date of first dose of study drug to the date of first documentation of progression or death (approximately up to 13 months)
Tumor response (TR) population included all participants randomized in the study, regardless of whether they actually received any study treatment (TAS-114 or S-1) or not; with measurable disease (at least one target lesion) at baseline and with at least one tumor evaluation (participants who had disease progression or had a cancer related death prior to their 1st tumor evaluation were also considered evaluable).
percentage of participantsNUMBER
SECONDARYDisease Control Rate (DCR) Based on Central Independent ReviewFrom date of first dose of study drug to the date of first documentation of progression or death (approximately up to 13 months)TR population.percentage of participantsNUMBER
SECONDARYDuration of Response (DR) Based on Central Independent ReviewFrom date of first response to the date of first documentation of progression or death (approximately up to 13 months)TR population.monthsMEDIAN
SECONDARYNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)From first dose of study drug up to 30 days after the last dose of study drug (approximately up to 13 months)Analysis was performed on As-Treated (AT) population which included all participants who received at least 1 dose of TAS-114 or S-1.ParticipantsCOUNT_OF_PARTICIPANTS

Results by group14

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

OutcomeGroupCategoryValueSpreadUnits
Progression-free Survival (PFS) Based on Central Independent ReviewTAS-114 + S-13.6595% Confidence Interval 2.69 to 5.16months
Progression-free Survival (PFS) Based on Central Independent ReviewS-1 (Monotherapy)4.1795% Confidence Interval 2.60 to 6.60months
Overall Survival (OS)TAS-114 + S-17.9295% Confidence Interval 6.28 to 10.78months
Overall Survival (OS)S-1 (Monotherapy)9.8295% Confidence Interval 7.66 to 13.40months
Overall Response Rate (ORR) Based on Central Independent ReviewTAS-114 + S-119.795% Confidence Interval 10.6 to 31.8percentage of participants
Overall Response Rate (ORR) Based on Central Independent ReviewS-1 (Monotherapy)10.395% Confidence Interval 3.9 to 21.2percentage of participants
Disease Control Rate (DCR) Based on Central Independent ReviewTAS-114 + S-180.395% Confidence Interval 68.2 to 89.4percentage of participants
Disease Control Rate (DCR) Based on Central Independent ReviewS-1 (Monotherapy)75.995% Confidence Interval 62.8 to 86.1percentage of participants
Duration of Response (DR) Based on Central Independent ReviewTAS-114 + S-13.3895% Confidence Interval 2.37 to 4.86months
Duration of Response (DR) Based on Central Independent ReviewS-1 (Monotherapy)NA95% Confidence Interval 2.79 to NAmonths

Participant flow8

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDTAS-114 + S-164
Overall StudySTARTEDS-1 (Monotherapy)64
Overall StudyTreatedTAS-114 + S-164
Overall StudyTreatedS-1 (Monotherapy)63
Overall StudyCOMPLETEDTAS-114 + S-10
Overall StudyCOMPLETEDS-1 (Monotherapy)0
Overall StudyNOT COMPLETEDTAS-114 + S-164
Overall StudyNOT COMPLETEDS-1 (Monotherapy)64

Adverse events220

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersTAS-114 + S-14264111
otherAnaemiaBlood and lymphatic system disordersS-1 (Monotherapy)176326
otherNeutropeniaBlood and lymphatic system disordersTAS-114 + S-156414
otherNeutropeniaBlood and lymphatic system disordersS-1 (Monotherapy)1631
otherThrombocytopeniaBlood and lymphatic system disordersTAS-114 + S-14645
otherThrombocytopeniaBlood and lymphatic system disordersS-1 (Monotherapy)2635
otherLacrimation increasedEye disordersTAS-114 + S-15645
otherLacrimation increasedEye disordersS-1 (Monotherapy)5635
otherAbdominal painGastrointestinal disordersTAS-114 + S-13644
otherAbdominal painGastrointestinal disordersS-1 (Monotherapy)5635

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityTAS-114 + S-13664
Total, all-cause mortalityS-1 (Monotherapy)2963
Total, other adverse eventsTAS-114 + S-16464
Total, other adverse eventsS-1 (Monotherapy)6163
Total, serious adverse eventsTAS-114 + S-13064
Total, serious adverse eventsS-1 (Monotherapy)1963

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
32246224DERIVED

Source PubMed

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
TAS-114 + S-1 vs S-1 (Monotherapy): deaths from any causeTrial comparisons
TAS-114 + S-1 vs S-1 (Monotherapy): 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/NCT02855125

GET https://conductscience.org/api/trials/v1/NCT02855125/events?page=2