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Trial · NCT01780987

AStudy To Evaluate Safety And Eficacy Of Apixaban In Japanese Acute Deep Vein Thrombosis (DVT) And Pulmonary Embolism (PE) Patients

NCT01780987, Phase 3, Completed, Pfizer; results first posted 2016-06-23

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. AStudy To Evaluate Safety And Eficacy Of Apixaban In Japanese Acute Deep Vein Thrombosis (DVT) And Pulmonary Embolism (PE) Patients. Trials, record NCT01780987. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01780987

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Trial

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

Title
AStudy To Evaluate Safety And Eficacy Of Apixaban In Japanese Acute Deep Vein Thrombosis (DVT) And Pulmonary Embolism (PE) Patients
NCT number
NCT01780987
Status
Completed
Phases
Phase 3
Enrollment
80 participants, actual
Lead sponsor
Pfizer
Conditions
Deep Vein Thrombosis, Pulmonary Embolism
Interventions
Apixaban, Unfractionated Heparin (UFH), Warfarin
First posted
2013-01-31
Last updated
2016-06-23
Results first posted
2016-06-23

Source ClinicalTrials.gov

Registered outcomes6

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

ListOutcomeTime frameDescription
Primary
Number of Participants With Major Bleeding Events [Per International Society on Thrombosis and Homeostasis (ISTH) Definition] or Clinically Relevant Non-major (CRNM) Bleeding Events Adjudicated by Clinical Event Committee During the Treatment Period
Baseline to Week 24
Major bleeding event was defined as an acute clinically overt bleeding accompanied by a decrease in hemoglobin of 2 g/dL or more, a transfusion of 4 or more units of packed red blood cells (a unit of packed red blood cells equal to about 200 cc), or bleeding that occurred in critical sites (e.g. intracranial). Fatal bleeding was also defined as a major bleeding event. CRNM bleeding event was defined as an acute clinically overt bleeding that did not satisfy the definition of major bleeding and that led to either hospitalization, physician guided medical or surgical treatment for bleeding, or a change in antithrombotic therapy.
Secondary
Number of Participants With Adjudicated Recurrent Symptomatic Venous Thromboembolism (VTE) [Nonfatal Deep Venous Thrombosis (DVT) or Nonfatal Pulmonary Embolism (PE)] or VTE-Related Death During the Intended Treatment Period
Baseline to Week 24
VTE-related death was defined as a death caused by documented PE which was diagnosed with objective testing or autopsy, or an unexplained death for which DVT/PE could not be ruled out as the cause. "Intended Treatment Period" was the period starting on the day of randomization and ending at either 2 days after the last dose of the study drug or Day 168/Week 24, whichever came late.
SecondaryNumber of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Proximal Deep Venous Thrombosis (DVT)Baseline to Week 24
Computed tomography venography (CTV) and compression ultrasound (CUS) were used to assess thrombotic burden in the participants with DVT and the results were classified as improved, no change, or worsened. The timings of CTV and CUS examinations were at Week 12 and Weeks 2, 12 and 24.
SecondaryNumber of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Pulmonary Embolism (PE)Baseline to Week 24
Computed tomography pulmonary angiography (CTPA) was used to assess thrombotic burden in the participants with PE and the results were classified as improved, no change, or worsened. The timings of CTPA examinations were Weeks 2, 12 and 24.
SecondaryNumber of Participants With Adjudicated Major Bleeding Events [Per International Society on Thrombosis and Homeostasis (ISTH) Definition]During the Treatment PeriodBaseline to Week 24
Major bleeding event was defined as an acute clinically overt bleeding accompanied by a decrease in hemoglobin of 2 g/dL or more, a transfusion of 4 or more units of packed red blood cells (a unit of packed red blood cells equal to about 200 cc), or bleeding that occurred in critical sites (e.g. intracranial). Fatal bleeding was also defined as a major bleeding event.
SecondaryNumber of Participants With Adjudicated All Bleeding Events During the Treatment PeriodsBaseline to Week 24
All bleeding events consisted of major bleeding (per Interactional Society on Thrombosis and Homeostasis [ISTH] Definition), clinically relevant non-major (CRNM) and minor bleeding. All acute clinically overt bleeding events not meeting the criteria for either major bleeding or CRMN bleeding were classified as minor bleeding.

Outcomes6

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARY
Number of Participants With Major Bleeding Events [Per International Society on Thrombosis and Homeostasis (ISTH) Definition] or Clinically Relevant Non-major (CRNM) Bleeding Events Adjudicated by Clinical Event Committee During the Treatment Period
Baseline to Week 24The safety analysis set (SAS) consisted of all treated participants.participantsNUMBER
SECONDARY
Number of Participants With Adjudicated Recurrent Symptomatic Venous Thromboembolism (VTE) [Nonfatal Deep Venous Thrombosis (DVT) or Nonfatal Pulmonary Embolism (PE)] or VTE-Related Death During the Intended Treatment Period
Baseline to Week 24Full analysis set (FAS) was defined as all randomized participants. Participants with missing endpoint information were excluded from the analysis.participantsNUMBER
SECONDARYNumber of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Proximal Deep Venous Thrombosis (DVT)Baseline to Week 24A subset of full analysis set (FAS) that consisted of participants with DVT. n=number of participants evaluated.participantsNUMBER
SECONDARYNumber of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Pulmonary Embolism (PE)Baseline to Week 24A subset of full analysis set (FAS) that consisted of participants with PE. n=number of participants evaluated.participantsNUMBER
SECONDARYNumber of Participants With Adjudicated Major Bleeding Events [Per International Society on Thrombosis and Homeostasis (ISTH) Definition]During the Treatment PeriodBaseline to Week 24The safety analysis set (SAS) consisted of all treated participants.participantsNUMBER
SECONDARYNumber of Participants With Adjudicated All Bleeding Events During the Treatment PeriodsBaseline to Week 24The safety analysis set (SAS) consisted of all treated participants.participantsNUMBER

Results by group22

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

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With Major Bleeding Events [Per International Society on Thrombosis and Homeostasis (ISTH) Definition] or Clinically Relevant Non-major (CRNM) Bleeding Events Adjudicated by Clinical Event Committee During the Treatment Period
Apixaban3participants
Number of Participants With Major Bleeding Events [Per International Society on Thrombosis and Homeostasis (ISTH) Definition] or Clinically Relevant Non-major (CRNM) Bleeding Events Adjudicated by Clinical Event Committee During the Treatment Period
Unfractionated Heparin (UFH)/Warfarin11participants
Number of Participants With Adjudicated Recurrent Symptomatic Venous Thromboembolism (VTE) [Nonfatal Deep Venous Thrombosis (DVT) or Nonfatal Pulmonary Embolism (PE)] or VTE-Related Death During the Intended Treatment Period
Apixaban0participants
Number of Participants With Adjudicated Recurrent Symptomatic Venous Thromboembolism (VTE) [Nonfatal Deep Venous Thrombosis (DVT) or Nonfatal Pulmonary Embolism (PE)] or VTE-Related Death During the Intended Treatment Period
Unfractionated Heparin (UFH)/Warfarin1participants
Number of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Proximal Deep Venous Thrombosis (DVT)ApixabanCUS - Week 2 (n=22, n=22)1participants
Number of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Proximal Deep Venous Thrombosis (DVT)Unfractionated Heparin (UFH)/WarfarinCUS - Week 2 (n=22, n=22)2participants
Number of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Proximal Deep Venous Thrombosis (DVT)ApixabanCTV - Week 12 (n=20, n=21)0participants
Number of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Proximal Deep Venous Thrombosis (DVT)Unfractionated Heparin (UFH)/WarfarinCTV - Week 12 (n=20, n=21)0participants
Number of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Proximal Deep Venous Thrombosis (DVT)ApixabanCUS - Week 12 (n=21, n=22)0participants
Number of Participants With Adjudicated Thrombotic Burden Worsened in Acute Symptomatic Proximal Deep Venous Thrombosis (DVT)Unfractionated Heparin (UFH)/WarfarinCUS - Week 12 (n=21, n=22)0participants

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDApixaban40
Overall StudySTARTEDUnfractionated Heparin (UFH)/Warfarin40
Overall StudyCOMPLETEDApixaban37
Overall StudyCOMPLETEDUnfractionated Heparin (UFH)/Warfarin34
Overall StudyNOT COMPLETEDApixaban3
Overall StudyNOT COMPLETEDUnfractionated Heparin (UFH)/Warfarin6

Adverse events84

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAtrial fibrillationCardiac disordersApixaban040
otherAtrial fibrillationCardiac disordersUnfractionated Heparin (UFH)/Warfarin239
otherPalpitationsCardiac disordersApixaban240
otherPalpitationsCardiac disordersUnfractionated Heparin (UFH)/Warfarin239
otherConstipationGastrointestinal disordersApixaban540
otherConstipationGastrointestinal disordersUnfractionated Heparin (UFH)/Warfarin839
otherDiarrhoeaGastrointestinal disordersApixaban340
otherDiarrhoeaGastrointestinal disordersUnfractionated Heparin (UFH)/Warfarin139
otherGastrooesophageal reflux diseaseGastrointestinal disordersApixaban040
otherGastrooesophageal reflux diseaseGastrointestinal disordersUnfractionated Heparin (UFH)/Warfarin239

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityApixaban
Total, all-cause mortalityUnfractionated Heparin (UFH)/Warfarin
Total, other adverse eventsApixaban2940
Total, other adverse eventsUnfractionated Heparin (UFH)/Warfarin3439
Total, serious adverse eventsApixaban340
Total, serious adverse eventsUnfractionated Heparin (UFH)/Warfarin739

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 comparisons5

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

ComparisonSource
Apixaban vs Unfractionated Heparin (UFH)/Warfarin: Number of Participants With Adjudicated Major Bleeding Events [Per International Society on Thrombosis and Homeostasis (ISTH) Definition]During the Treatment Period
Trial comparisons
Apixaban vs Unfractionated Heparin (UFH)/Warfarin: Number of Participants With Adjudicated Recurrent Symptomatic Venous Thromboembolism (VTE) [Nonfatal Deep Venous Thrombosis (DVT) or Nonfatal Pulmonary Embolism (PE)] or VTE-Related Death During the Intended Treatment Period
Trial comparisons
Apixaban vs Unfractionated Heparin (UFH)/Warfarin: Number of Participants With Major Bleeding Events [Per International Society on Thrombosis and Homeostasis (ISTH) Definition] or Clinically Relevant Non-major (CRNM) Bleeding Events Adjudicated by Clinical Event Committee During the Treatment Period
Trial comparisons
Apixaban vs Unfractionated Heparin (UFH)/Warfarin: Number of Participants With Adjudicated All Bleeding Events During the Treatment PeriodsTrial comparisons
Apixaban vs Unfractionated Heparin (UFH)/Warfarin: 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/NCT01780987

GET https://conductscience.org/api/trials/v1/NCT01780987/results?page=2