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Trial · NCT00260689

Three Immunosuppressive Treatment Regimens for Severe Aplastic Anemia

NCT00260689, Phase 2, Completed, National Heart, Lung, and Blood Institute (NHLBI); results first posted 2017-06-08

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Three Immunosuppressive Treatment Regimens for Severe Aplastic Anemia. Trials, record NCT00260689. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00260689

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Trial

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

Title
Three Immunosuppressive Treatment Regimens for Severe Aplastic Anemia
NCT number
NCT00260689
Status
Completed
Phases
Phase 2
Enrollment
136 participants, actual
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
Conditions
Immunosuppresion, Thrombocytopenia, Pancytopenia, Neutropenia
Interventions
Anti-thymocyte globulin (rabbit), Anti-thymocyte globulin (horse), Cyclosporine, Alemtuzumab
First posted
2005-12-01
Last updated
2017-06-08
Results first posted
2017-06-08
Limitations and caveats
Originally, there were 3 regimens: h-ATG/CsA ; r-ATG/CsA; alemtuzumab. Subjects not responding to r-ATG will cross over to alemtuzumab, and subjects failing alemtuzumab will cross over to r-ATG. Subjects not responding to h-ATG/CsA will go off study.

Source ClinicalTrials.gov

Registered outcomes3

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

ListOutcomeTime frameDescription
PrimaryHematologic Response3 months
Hematologic response is defined as subjects having blood counts no longer meeting the standard ("Camitta") criteria for severe pancytopenia in Severe Aplastic Anemia, equivalent to 2 of the following values obtained on 2 serial blood count measurements at least one week apart at landmark time points (3, 6 and 12 months) * Absolute neutrophil count \> 500/ μL * Platelet count \> 20,000/ μL * Reticulocyte count \> 60,000/ μL Improvement in counts that are dependent upon exogenously administered growth factors or transfusion will not be considered as fulfilling response criteria.
PrimaryHematologic Response6 months
Hematologic response is defined as subjects having blood counts no longer meeting the standard ("Camitta") criteria for severe pancytopenia in Severe Aplastic Anemia, equivalent to 2 of the following values obtained on 2 serial blood count measurements at least one week apart at landmark time points (3, 6 and 12 months) * Absolute neutrophil count \> 500/ μL * Platelet count \> 20,000/ μL * Reticulocyte count \> 60,000/ μL Improvement in counts that are dependent upon exogenously administered growth factors or transfusion will not be considered as fulfilling response criteria.
PrimaryHematologic Response12 months
Hematologic response is defined as subjects having blood counts no longer meeting the standard ("Camitta") criteria for severe pancytopenia in Severe Aplastic Anemia, equivalent to 2 of the following values obtained on 2 serial blood count measurements at least one week apart at landmark time points (3, 6 and 12 months) * Absolute neutrophil count \> 500/ μL * Platelet count \> 20,000/ μL * Reticulocyte count \> 60,000/ μL Improvement in counts that are dependent upon exogenously administered growth factors or transfusion will not be considered as fulfilling response criteria.

Outcomes3

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYHematologic Response3 monthsParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYHematologic Response6 monthsParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYHematologic Response12 monthsParticipantsCOUNT_OF_PARTICIPANTS

Results by group9

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

OutcomeGroupCategoryValueSpreadUnits
Hematologic ResponseHorse ATG/CsA Taper38Participants
Hematologic ResponseRabbit ATG/CsA20Participants
Hematologic ResponseAlemtuzumab3Participants
Hematologic ResponseHorse ATG/CsA Taper41Participants
Hematologic ResponseRabbit ATG/CsA22Participants
Hematologic ResponseAlemtuzumab3Participants
Hematologic ResponseHorse ATG/CsA Taper40Participants
Hematologic ResponseRabbit ATG/CsA18Participants
Hematologic ResponseAlemtuzumab2Participants

Participant flow9

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDHorse ATG/CsA Taper60
Overall StudySTARTEDRabbit ATG/CsA60
Overall StudySTARTEDAlemtuzumab16
Overall StudyCOMPLETEDHorse ATG/CsA Taper19
Overall StudyCOMPLETEDRabbit ATG/CsA11
Overall StudyCOMPLETEDAlemtuzumab1
Overall StudyNOT COMPLETEDHorse ATG/CsA Taper41
Overall StudyNOT COMPLETEDRabbit ATG/CsA49
Overall StudyNOT COMPLETEDAlemtuzumab15

Adverse events546

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otheredemaBlood and lymphatic system disordersHorse ATG/CsA Taper060
otheredemaBlood and lymphatic system disordersRabbit ATG/CsA160
otheredemaBlood and lymphatic system disordersAlemtuzumab016
otheredema - mild lower extremityBlood and lymphatic system disordersHorse ATG/CsA Taper160
otheredema - mild lower extremityBlood and lymphatic system disordersRabbit ATG/CsA060
otheredema - mild lower extremityBlood and lymphatic system disordersAlemtuzumab016
othergingival hypertrophyBlood and lymphatic system disordersHorse ATG/CsA Taper060
othergingival hypertrophyBlood and lymphatic system disordersRabbit ATG/CsA160
othergingival hypertrophyBlood and lymphatic system disordersAlemtuzumab016
otherHemolysisBlood and lymphatic system disordersHorse ATG/CsA Taper160

Adverse event totals9

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityHorse ATG/CsA Taper1160
Total, all-cause mortalityRabbit ATG/CsA1860
Total, all-cause mortalityAlemtuzumab716
Total, other adverse eventsHorse ATG/CsA Taper3660
Total, other adverse eventsRabbit ATG/CsA3960
Total, other adverse eventsAlemtuzumab1516
Total, serious adverse eventsHorse ATG/CsA Taper760
Total, serious adverse eventsRabbit ATG/CsA1160
Total, serious adverse eventsAlemtuzumab616

Papers11

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
2981406BACKGROUNDPubMed
7780125BACKGROUNDPubMed
9134878BACKGROUNDPubMed
21812672BACKGROUNDPubMed
22067384BACKGROUNDPubMed
24415649BACKGROUNDPubMed
24907357BACKGROUNDPubMed
27658437DERIVEDPubMed
29674506DERIVEDPubMed
29958797DERIVEDPubMed

1 to 10 of 11

See all 11 papers

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/NCT00260689

GET https://conductscience.org/api/trials/v1/NCT00260689/events?page=2