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Trial · NCT00492856

S0521, Combination Chemotherapy With or Without Gemtuzumab Followed By Tretinoin, Mercaptopurine, and Methotrexate or Observation in Treating Patients With Acute Promyelocytic Leukemia

NCT00492856, Phase 3, Completed, SWOG Cancer Research Network; results first posted 2014-07-18

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. S0521, Combination Chemotherapy With or Without Gemtuzumab Followed By Tretinoin, Mercaptopurine, and Methotrexate or Observation in Treating Patients With Acute Promyelocytic Leukemia. Trials, record NCT00492856. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00492856

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Trial

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

Title
S0521, Combination Chemotherapy With or Without Gemtuzumab Followed By Tretinoin, Mercaptopurine, and Methotrexate or Observation in Treating Patients With Acute Promyelocytic Leukemia
NCT number
NCT00492856
Status
Completed
Phases
Phase 3
Enrollment
105 participants, actual
Lead sponsor
SWOG Cancer Research Network
Conditions
Leukemia
Interventions
mercaptopurine, methotrexate, tretinoin
First posted
2007-06-27
Last updated
2023-01-10
Results first posted
2014-07-18

Source ClinicalTrials.gov

Registered outcomes2

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

ListOutcomeTime frameDescription
Primary3-year Disease-free Survival (DFS) RateUp to 3 years
DFS measured from date of post-consolidation randomization until relapse of any kind or death from any cause. Observation censored at date of last follow-up for patients last known to be alive without report of relapse. Relapse from CR/CRi is occurrence of marrow blasts ≥ 5% or presence of Auer rods or presence of neoplastic promyelocytes; (re)appearance of leukemic blasts or neoplastic promyelocytes in the peripheral blood; or (re)appearance of extramedullary disease. Relapse from PR is sum of marrow blasts and promyelocytes ≥ 20%, or sum of marrow blasts and promyelocytes 6-19% with Auer rods and/or neoplastic promyelocytes; or (re)appearance of leukemic blasts or neoplastic promyelocytes in the peripheral blood; or (re)appearance of extramedullary disease. Relapse from CRc is reappearance of t(15;17) in cytogenetic analysis. Relapse from CRm/PRm is reappearance of PML-RARα by RT-PCR as defined by a normalized quotient \> 10\^-5 based on RT-PCR performed at appropriate central lab.
SecondaryNumber of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugUp to 5 years
Any CTCAE 3.0 event of Grade 3 (severe), Grade 4 (life threatening), or Grade 5 (fatal) which were deemed to be related to protocol treatment are included. Only adverse events that are possibly, probably, or definitely related to study drug are reported.

Outcomes2

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

TypeOutcomeTime framePopulationUnitsMeasured as
SECONDARYNumber of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugUp to 5 yearsEligible patients who received any treatment and were assessed for adverse events were included in the adverse event summaries.ParticipantsNUMBER
PRIMARY3-year Disease-free Survival (DFS) RateUp to 3 years
Eligible patients in molecular remission after receiving consolidation and randomized to either maintenance chemotherapy or observation. As of 8/15/10, all eligible patients were non-randomly assigned to receive maintenance chemotherapy. Only those that were randomized to either maintenance treatment or observation were included.
percentage of patientsNUMBER

Results by group474

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

OutcomeGroupCategoryValueSpreadUnits
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugATRA + Ara-C + DaunorubicinALT, SGPT (serum glutamic pyruvic transaminase)5Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugConsolidationALT, SGPT (serum glutamic pyruvic transaminase)3Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugATRA+6-MP+MTXALT, SGPT (serum glutamic pyruvic transaminase)2Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugGemtuzumab OzogamicinALT, SGPT (serum glutamic pyruvic transaminase)0Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugATRA + Ara-C + DaunorubicinAST, SGOT2Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugConsolidationAST, SGOT2Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugATRA+6-MP+MTXAST, SGOT1Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugGemtuzumab OzogamicinAST, SGOT0Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugATRA + Ara-C + DaunorubicinAcidosis (metabolic or respiratory)1Participants
Number of Patients With Grade 3 Through 5 Adverse Events That Are Related to Study DrugConsolidationAcidosis (metabolic or respiratory)0Participants

Participant flow36

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

PeriodMilestoneGroupParticipantsUnits counted
InductionSTARTEDLow and Intermediate Risk APL Patients105
InductionSTARTEDPost-consolidation ATRA, 6-MP, MTX0
InductionSTARTEDPost-consolidation Observation0
InductionSTARTEDPost-consolidation Gemtuzumab Ozogamicin0
InductionCOMPLETEDLow and Intermediate Risk APL Patients99
InductionCOMPLETEDPost-consolidation ATRA, 6-MP, MTX0
InductionCOMPLETEDPost-consolidation Observation0
InductionCOMPLETEDPost-consolidation Gemtuzumab Ozogamicin0
InductionNOT COMPLETEDLow and Intermediate Risk APL Patients6
InductionNOT COMPLETEDPost-consolidation ATRA, 6-MP, MTX0

Adverse events556

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherDIC (disseminated intravascular coagulation)Blood and lymphatic system disordersATRA + Ara-C + Daunorubicin24105
otherDIC (disseminated intravascular coagulation)Blood and lymphatic system disordersConsolidation090
otherDIC (disseminated intravascular coagulation)Blood and lymphatic system disordersATRA+6-MP+MTX138
otherDIC (disseminated intravascular coagulation)Blood and lymphatic system disordersGemtuzumab Ozogamicin01
otherFebrile neutropeniaBlood and lymphatic system disordersATRA + Ara-C + Daunorubicin62105
otherFebrile neutropeniaBlood and lymphatic system disordersConsolidation890
otherFebrile neutropeniaBlood and lymphatic system disordersATRA+6-MP+MTX038
otherFebrile neutropeniaBlood and lymphatic system disordersGemtuzumab Ozogamicin11
otherHemoglobinBlood and lymphatic system disordersATRA + Ara-C + Daunorubicin43105
otherHemoglobinBlood and lymphatic system disordersConsolidation5990

Adverse event totals12

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityATRA + Ara-C + Daunorubicin
Total, all-cause mortalityConsolidation
Total, all-cause mortalityATRA+6-MP+MTX
Total, all-cause mortalityGemtuzumab Ozogamicin
Total, other adverse eventsATRA + Ara-C + Daunorubicin105105
Total, other adverse eventsConsolidation8990
Total, other adverse eventsATRA+6-MP+MTX3738
Total, other adverse eventsGemtuzumab Ozogamicin11
Total, serious adverse eventsATRA + Ara-C + Daunorubicin8105
Total, serious adverse eventsConsolidation490

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
24528179DERIVED

Source PubMed

Grants1

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.

ProjectTitlePrincipal investigatorsOrganizationFunderFiscal years
U10CA032102Southwest Oncology Group Treatment GrantBLANKE, CHARLES D.OREGON HEALTH & SCIENCE UNIVERSITYNATIONAL CANCER INSTITUTE1985 to 2013

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/NCT00492856

GET https://conductscience.org/api/trials/v1/NCT00492856/results?page=2