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Trial · NCT00291330

Efficacy and Safety of Dabigatran Compared to Warfarin for 6 Month Treatment of Acute Symptomatic Venous Thromboembolism

NCT00291330, Phase 3, Completed, Boehringer Ingelheim; results first posted 2011-02-11

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Efficacy and Safety of Dabigatran Compared to Warfarin for 6 Month Treatment of Acute Symptomatic Venous Thromboembolism. Trials, record NCT00291330. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00291330

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Trial

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

Title
Efficacy and Safety of Dabigatran Compared to Warfarin for 6 Month Treatment of Acute Symptomatic Venous Thromboembolism
NCT number
NCT00291330
Status
Completed
Phases
Phase 3
Enrollment
2,564 participants, actual
Lead sponsor
Boehringer Ingelheim
Conditions
Thromboembolism
Interventions
dabigatran etexilate 150 mg, warfarin (INR 2-3)
First posted
2006-02-14
Last updated
2014-06-06
Other registries' IDs
eudract:2005-001999-12
Results first posted
2011-02-11

Source ClinicalTrials.gov

Registered outcomes9

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

ListOutcomeTime frameDescription
PrimaryNumber of Participants With Recurrent Symptomatic Venous Thromboembolism (VTE) and Deaths Related to VTEFor statistical analysis 1: from randomisation to end of post treatment period (ptp), planned to be up to day 224. For statistical analysis 2: from randomisation to 6 months (up to day 180)
All suspected recurrent VTEs and all deaths and bleeding events were evaluated by an independent central adjudication committee, and all analyses are based on the events that were centrally confirmed by this committee.
SecondaryNumber of Participants With Recurrent Symptomatic VTE and All DeathsFor statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
VTE or any death which occured from randomisation to end of post treatment period. All suspected recurrent VTEs and all deaths and bleeding events were evaluated by an independent central adjudication committee, and all analyses are based on the events that were centrally confirmed by this committee.
SecondaryNumber of Participants With Recurrent Symptomatic DVTFor statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
Symptomatic DVT which occured from randomisation to end of post treatment period. All suspected recurrent VTEs and all deaths and bleeding events were evaluated by an independent central adjudication committee, and all analyses are based on the events that were centrally confirmed by this committee.
SecondaryNumber of Participants With Recurrent Symptomatic Non-fatal PEFor statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
Symptomatic non-fatal PE which occured from randomisation to end of post treatment period. All suspected recurrent VTEs and all deaths and bleeding events were evaluated by an independent central adjudication committee, and all analyses are based on the events that were centrally confirmed by this committee.
SecondaryNumber of Participants Who Died Due to VTEFor statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
VTE - related deaths which occured from randomisation to end of post treatment period. All suspected recurrent VTEs and all deaths and bleeding events were evaluated by an independent central adjudication committee, and all analyses are based on the events that were centrally confirmed by this committee.
SecondaryNumber of Participants Who Died (Any Cause)For statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
Any deaths which occured from randomisation to end of post treatment period. All suspected recurrent VTEs and all deaths and bleeding events were evaluated by an independent central adjudication committee, and all analyses are based on the events that were centrally confirmed by this committee.
SecondaryNumber of Participants With Bleeding Events
From first intake of study drug to last intake of study drug + 6 days washout (washout time can be reduced until 0 day if the patient takes an other anti-coagulant therapy on and after last intake of active study drug)
Major bleeding events (MBE) were defined as * Fatal bleeding * Symptomatic bleeding in a critical area or organ * Bleeding causing a fall in haemoglobin level of 20 g/L (1.24 mmol/L) or more, or leading to transfusion of 2 or more units of whole blood or red cells Clinically-relevant bleeding events (CRBE) was defined as * spontaneous skin hematoma \>=25 cm² * spontaneous nose bleed \>5 min * macroscopic hematuria spontaneous or \>24 hours if associated with an intervention * spontaneous rectal bleeding (more than spotting on toilet paper) * gingival bleeding \>5 min * leading to hospitalisation and / or requiring surgical treatment * leading to a transfusion of \<2 units of whole blood or red cells * any other bleeding event considered clinically relevant by the investigator Any bleeding events were defined as major, clinically-relevant and nuisance bleeding events. Nuisance bleeding events were defined as all other bleeding events that did not fulfil the criteria from above.
SecondaryNumber of Participants With Acute Coronary Syndrome (ACS)From first intake of study drug to end of study conduct
Any ACS occurring during the conduct of the study (centrally adjudicated as definite). Counts of patients having a centrally adjudicated definite ACS during intake of active study drug, after stopping active study drug and before or without intake of active study drug, according to treatment group. All suspected recurrent VTEs and all deaths and bleeding events were evaluated by an independent central adjudication committee, and all analyses are based on the events that were centrally confirmed by this committee.
SecondaryLaboratory Analyses
From first intake of study drug to last intake of study drug + 6 days washout (washout time can be reduced until 0 day if the patient takes an other anti-coagulant therapy on and after last intake of active study drug)
Frequency of patients with possible clinically significant abnormalities.

Outcomes9

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants With Recurrent Symptomatic Venous Thromboembolism (VTE) and Deaths Related to VTEFor statistical analysis 1: from randomisation to end of post treatment period (ptp), planned to be up to day 224. For statistical analysis 2: from randomisation to 6 months (up to day 180)
Full analysis set (FAS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as randomised, i.e. regardless of the actual medication taken.
ParticipantsNUMBER
SECONDARYNumber of Participants With Recurrent Symptomatic VTE and All DeathsFor statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
Full analysis set (FAS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as randomised, i.e. regardless of the actual medication taken.
ParticipantsNUMBER
SECONDARYNumber of Participants With Recurrent Symptomatic DVTFor statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
Full analysis set (FAS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as randomised, i.e. regardless of the actual medication taken.
participantsNUMBER
SECONDARYNumber of Participants With Recurrent Symptomatic Non-fatal PEFor statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
Full analysis set (FAS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as randomised, i.e. regardless of the actual medication taken.
participantsNUMBER
SECONDARYNumber of Participants Who Died Due to VTEFor statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
Full analysis set (FAS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as randomised, i.e. regardless of the actual medication taken.
participantsNUMBER
SECONDARYNumber of Participants Who Died (Any Cause)For statistical analysis 1: from randomisation to 6 months (up to day 180) For statistical analysis 2: from randomisation to end of ptp, planned to be up to day 224.
Full analysis set (FAS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as randomised, i.e. regardless of the actual medication taken.
participantsNUMBER
SECONDARYNumber of Participants With Bleeding Events
From first intake of study drug to last intake of study drug + 6 days washout (washout time can be reduced until 0 day if the patient takes an other anti-coagulant therapy on and after last intake of active study drug)
Treated set (TS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as treated.participantsNUMBER
SECONDARYNumber of Participants With Acute Coronary Syndrome (ACS)From first intake of study drug to end of study conductTreated set (TS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as treated.participantsNUMBER
SECONDARYLaboratory Analyses
From first intake of study drug to last intake of study drug + 6 days washout (washout time can be reduced until 0 day if the patient takes an other anti-coagulant therapy on and after last intake of active study drug)
Treated set (TS): consisted of all randomised patients who were documented to have taken at least one dose of study drug. Patients were assigned to the treatment groups as treated.participantsNUMBER

Results by group48

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

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With Recurrent Symptomatic Venous Thromboembolism (VTE) and Deaths Related to VTEDabigatran 150 mgParticipants with event (up to day 180)30Participants
Number of Participants With Recurrent Symptomatic Venous Thromboembolism (VTE) and Deaths Related to VTEWarfarinParticipants with event (up to day 180)27Participants
Number of Participants With Recurrent Symptomatic Venous Thromboembolism (VTE) and Deaths Related to VTEDabigatran 150 mgParticipants with event (up to end of ptp)34Participants
Number of Participants With Recurrent Symptomatic Venous Thromboembolism (VTE) and Deaths Related to VTEWarfarinParticipants with event (up to end of ptp)32Participants
Number of Participants With Recurrent Symptomatic VTE and All DeathsDabigatran 150 mgParticipants with event (up to day 180)48Participants
Number of Participants With Recurrent Symptomatic VTE and All DeathsWarfarinParticipants with event (up to day 180)44Participants
Number of Participants With Recurrent Symptomatic VTE and All DeathsDabigatran 150 mgParticipants with event (up to end of ptp)55Participants
Number of Participants With Recurrent Symptomatic VTE and All DeathsWarfarinParticipants with event (up to end of ptp)53Participants
Number of Participants With Recurrent Symptomatic DVTDabigatran 150 mgParticipants with event (up to day 180)16participants
Number of Participants With Recurrent Symptomatic DVTWarfarinParticipants with event (up to day 180)18participants

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDDabigatran 150 mg1,273
Overall StudySTARTEDWarfarin1,266
Overall StudyCOMPLETEDDabigatran 150 mg1,172
Overall StudyCOMPLETEDWarfarin1,169
Overall StudyNOT COMPLETEDDabigatran 150 mg101
Overall StudyNOT COMPLETEDWarfarin97

Adverse events526

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherPain in extremityMusculoskeletal and connective tissue disordersDabigatran 150 mg631,273
otherPain in extremityMusculoskeletal and connective tissue disordersWarfarin691,266
otherHeadacheNervous system disordersDabigatran 150 mg781,273
otherHeadacheNervous system disordersWarfarin871,266
otherEpistaxisRespiratory, thoracic and mediastinal disordersDabigatran 150 mg351,273
otherEpistaxisRespiratory, thoracic and mediastinal disordersWarfarin781,266
seriousAnaemiaBlood and lymphatic system disordersDabigatran 150 mg51,273
seriousAnaemiaBlood and lymphatic system disordersWarfarin21,266
seriousFebrile neutropeniaBlood and lymphatic system disordersDabigatran 150 mg11,273
seriousFebrile neutropeniaBlood and lymphatic system disordersWarfarin01,266

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityDabigatran 150 mg
Total, all-cause mortalityWarfarin
Total, other adverse eventsDabigatran 150 mg1631,273
Total, other adverse eventsWarfarin2091,266
Total, serious adverse eventsDabigatran 150 mg1651,273
Total, serious adverse eventsWarfarin1501,266

Papers4

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
19966341DERIVEDPubMed
24081972DERIVEDPubMed
24344086DERIVEDPubMed
27807306DERIVEDPubMed

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 comparisons1

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

Comparison
Dabigatran 150 mg vs Warfarin: serious adverse events

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/NCT00291330

GET https://conductscience.org/api/trials/v1/NCT00291330/results?page=2