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Trial · NCT03594045

Efficacy and Safety of Apixaban in the Treatment of Heparin Induced Thrombocytopenia (HIT)

NCT03594045, Phase 2, Terminated, Massachusetts General Hospital; results first posted 2020-12-23

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Efficacy and Safety of Apixaban in the Treatment of Heparin Induced Thrombocytopenia (HIT). Trials, record NCT03594045. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03594045

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Trial

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

Title
Efficacy and Safety of Apixaban in the Treatment of Heparin Induced Thrombocytopenia (HIT)
NCT number
NCT03594045
Status
Terminated
Phases
Phase 2
Enrollment
5 participants, actual
Lead sponsor
Massachusetts General Hospital
Conditions
Heparin-induced Thrombocytopenia, Heparin-induced Thrombocytopenia and Thrombosis
Interventions
Apixaban
First posted
2018-07-20
Last updated
2020-12-23
Results first posted
2020-12-23

Source ClinicalTrials.gov

Registered outcomes8

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

ListOutcomeTime frameDescription
PrimaryCumulative Incidence of New Symptomatic Thromboembolic Complications (TEC) Within 30 Days of the Initiation of Apixaban30 daysNew TEC
SecondaryComposite Cumulative Incidence of All-cause Mortality, Limb Amputation and New TECFrom the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTComposite cumulative incidence
SecondaryComposite Cumulative Incidence of New TEC and Major BleedingFrom the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTComposite cumulative incidence
SecondaryCumulative Incidence of Major BleedingFrom the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTMajor Bleeding
SecondaryTime to Platelet RecoveryFrom the start of treatment until time of platelet recovery, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTThe time to platelet recovery serves as a surrogate index of the activity of apixaban.
SecondaryCumulative Incidence of All Cause MortalityFrom the start of treatment until the time of death or until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTDeath due to any cause during treatment or the follow-up period following treatment.
SecondaryCumulative Incidence of Limb AmputationFrom the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITT
SecondaryCumulative Incidence of New Thromboembolic Complications (TEC)From the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTNew TEC during the study.

Outcomes8

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYCumulative Incidence of New Symptomatic Thromboembolic Complications (TEC) Within 30 Days of the Initiation of Apixaban30 daysNo HIT patients were enrolledParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYComposite Cumulative Incidence of All-cause Mortality, Limb Amputation and New TECFrom the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTNo HIT patients were enrolledParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYComposite Cumulative Incidence of New TEC and Major BleedingFrom the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTNo HIT patients were enrolledParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYCumulative Incidence of Major BleedingFrom the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTNo HIT patients were enrolledParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYTime to Platelet RecoveryFrom the start of treatment until time of platelet recovery, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTNo HIT patients were enrolledDaysMEDIAN
SECONDARYCumulative Incidence of All Cause MortalityFrom the start of treatment until the time of death or until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTNo HIT patients were enrolledParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYCumulative Incidence of Limb AmputationFrom the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTNo HIT patients were enrolledParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYCumulative Incidence of New Thromboembolic Complications (TEC)From the start of treatment until 30 days after the end of treatment, up to 60 days total for participants with HIT and up to 120 days total for participants with HITTNo HIT patients were enrolledParticipantsCOUNT_OF_PARTICIPANTS

Results by group8

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

OutcomeGroupCategoryValueSpreadUnits
Cumulative Incidence of New Symptomatic Thromboembolic Complications (TEC) Within 30 Days of the Initiation of ApixabanApixaban for HITT0Participants
Composite Cumulative Incidence of All-cause Mortality, Limb Amputation and New TECApixaban for HITT0Participants
Composite Cumulative Incidence of New TEC and Major BleedingApixaban for HITT0Participants
Cumulative Incidence of Major BleedingApixaban for HITT0Participants
Time to Platelet RecoveryApixaban for HITT2Full Range 2 to 5Days
Cumulative Incidence of All Cause MortalityApixaban for HITT0Participants
Cumulative Incidence of Limb AmputationApixaban for HITT0Participants
Cumulative Incidence of New Thromboembolic Complications (TEC)Apixaban for HITT0Participants

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDApixaban for HIT0
Overall StudySTARTEDApixaban for HITT5
Overall StudyCOMPLETEDApixaban for HIT0
Overall StudyCOMPLETEDApixaban for HITT5
Overall StudyNOT COMPLETEDApixaban for HIT0
Overall StudyNOT COMPLETEDApixaban for HITT0

Adverse events40

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherBruisingInjury, poisoning and procedural complicationsApixaban for HIT000
otherBruisingInjury, poisoning and procedural complicationsApixaban for HITT153
otherDizzinessNervous system disordersApixaban for HIT000
otherDizzinessNervous system disordersApixaban for HITT155
otherDry skinSkin and subcutaneous tissue disordersApixaban for HIT000
otherDry skinSkin and subcutaneous tissue disordersApixaban for HITT152
otherDyspneaRespiratory, thoracic and mediastinal disordersApixaban for HIT000
otherDyspneaRespiratory, thoracic and mediastinal disordersApixaban for HITT152
otherEpistaxisRespiratory, thoracic and mediastinal disordersApixaban for HIT000
otherEpistaxisRespiratory, thoracic and mediastinal disordersApixaban for HITT155

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityApixaban for HIT00
Total, all-cause mortalityApixaban for HITT05
Total, other adverse eventsApixaban for HIT00
Total, other adverse eventsApixaban for HITT45
Total, serious adverse eventsApixaban for HIT00
Total, serious adverse eventsApixaban for HITT05

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 comparisons0

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

None in this release.

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/NCT03594045

GET https://conductscience.org/api/trials/v1/NCT03594045/events?page=2