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Trial · NCT03953898

Using the Anticancer Drug Olaparib to Treat Relapsed/Refractory Acute Myeloid Leukemia or Myelodysplastic Syndrome With an Isocitrate Dehydrogenase (IDH) Mutation

NCT03953898, Phase 2, Active not recruiting, National Cancer Institute (NCI); results first posted 2025-03-30

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Using the Anticancer Drug Olaparib to Treat Relapsed/Refractory Acute Myeloid Leukemia or Myelodysplastic Syndrome With an Isocitrate Dehydrogenase (IDH) Mutation. Trials, record NCT03953898. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03953898

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Trial

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

Title
Using the Anticancer Drug Olaparib to Treat Relapsed/Refractory Acute Myeloid Leukemia or Myelodysplastic Syndrome With an Isocitrate Dehydrogenase (IDH) Mutation
NCT number
NCT03953898
Status
Active not recruiting
Phases
Phase 2
Enrollment
14 participants, actual
Lead sponsor
National Cancer Institute (NCI)
Conditions
Acute Myeloid Leukemia, Acute Myeloid Leukemia Arising From Previous Myelodysplastic Syndrome, Acute Myeloid Leukemia Post Cytotoxic Therapy, Recurrent Acute Myeloid Leukemia, Recurrent Myelodysplastic Syndrome, Refractory Acute Myeloid Leukemia, Refractory Myelodysplastic Syndrome
Interventions
Biospecimen Collection, Bone Marrow Aspiration, Olaparib
First posted
2019-05-17
Last updated
2026-09-10
Results first posted
2025-03-30

Source ClinicalTrials.gov

Registered outcomes9

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

ListOutcomeTime frameDescription
PrimaryCumulative Overall Response Rate (ORR)Up to 6 cycles
Will be evaluated by Myelodysplastic Syndrome International Working Group (IWG) 2006 criteria (Cheson et al., 2006) and acute myeloid leukemia (AML) IWG 2003 criteria (Cheson et al., 2003) after 6 cycles of treatment. Cumulative ORR will include complete remission (CR), complete remission with incomplete blood count recovery (CRi), partial response (PR), and bone marrow complete remission (marrow CR) achieved at least at one point during these 6 cycles.
SecondaryORRUp to 12 months
The effectiveness of the drug in patients for each cohort will be independently assessed by ORR. The exact two-sided 95% confidence intervals (CI) for the ORR will be reported. The CI based on the Greenwoods variance will be reported.
SecondaryProgression-free Survival (PFS)From first day of therapy to the time of documentation of progression, death of any cause, or last follow-up, whichever comes first, assessed up to 12 months
Will be estimated using the Kaplan-Meier method with the 95% CIs. The CI based on the Greenwoods variance will be reported. In addition, the possible risk factors will be compared for survival with log-rank test. For multivariate analysis, the proportional hazards Cox model will be applied to investigate potential prognostic factors, such as age and stage of disease on the survival data. The adjusted p-values of the odds ratios and the adjusted 95% confidence interval will be reported.
SecondaryOverall Survival (OS)From first day of therapy to the time of death or last follow-up, whichever comes first, assessed up to 12 months
Will be estimated using the Kaplan-Meier method with the 95% CIs. The CI based on the Greenwoods variance will be reported. In addition, the possible risk factors will be compared for survival with log-rank test. For multivariate analysis, the proportional hazards Cox model will be applied to investigate potential prognostic factors, such as age and stage of disease on the survival data. The adjusted p-values of the odds ratios and the adjusted 95% confidence interval will be reported.
SecondaryDuration of Response (DOR)From first documentation of response to the time of documentation of progression, death of any cause, or last follow-up, whichever comes first, assessed up to 12 months
SecondaryIncidence of Adverse EventsUp to 12 months
Non-hematologic toxicity will be evaluated by Common Terminology Criteria for Adverse Events version 5 criteria. Presented are the count of those that experienced at least one non-serious adverse event.
OtherChange in 2-hydroxyglutarate (2HG) LevelsUp to 12 months
The Mann-Whitney U test will be used to test for differences in post-treatment plasma 2HG concentrations between patients with a response to treatment and those without. Will also test for differences in Delta2HG (defined as pre-treatment minus post-treatment plasma concentration) between patients with a response to treatment and those without. Differences with p =\< 0.05 will be considered significant. The area under the receiver operating characteristic curve (ROC AUC) will be calculated to determine the cutoff value of the Delta2HG difference. The optimal cutoff value will be determined at the point on the ROC curve at (sensitivity + specificity - 1) is maximized.
OtherMinimal Residual Disease (MRD) AssessmentUp to 12 months
Will define MRD based on the variation of the variant allele frequency of the IDH1/2 mutation in the bone marrow of the patients before and during therapy. Will evaluate two different variables: MRD negativity (defined by the absence of detection of the IDH mutant in the sample) and the molecular response (defined by the log reduction of the frequency of the mutant allele). MRD negativity is a qualitative variable and will be reported as a percentage with 95% confidence interval for each time point and mutation. Will compare the different groups using a Chi-Square test. Molecular response is a quantitative variable reported as a median, min and max for each time point and we will use a student t test for the comparison of the different groups.
OtherMutant Allele FrequencyUp to 12 months
Will be estimated using Poisson distribution model as the fraction of positive reads divided by total reads containing a target. The limit of detection will be defined for each mutation as the mean value of IDH1/2 wild-type controls plus three standard deviations.

Outcomes9

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYCumulative Overall Response Rate (ORR)Up to 6 cyclesParticipants receiving treatmentParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYORRUp to 12 monthsParticipants receiving treatmentParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYProgression-free Survival (PFS)From first day of therapy to the time of documentation of progression, death of any cause, or last follow-up, whichever comes first, assessed up to 12 monthsParticipants receiving treatmentmonthsMEDIAN
SECONDARYOverall Survival (OS)From first day of therapy to the time of death or last follow-up, whichever comes first, assessed up to 12 monthsParticipants receiving treatmentmonthsMEDIAN
SECONDARYDuration of Response (DOR)From first documentation of response to the time of documentation of progression, death of any cause, or last follow-up, whichever comes first, assessed up to 12 monthsno patients responded to treatment
SECONDARYIncidence of Adverse EventsUp to 12 months12 pariticipants received treatment.ParticipantsCOUNT_OF_PARTICIPANTS
OTHER_PRE_SPECIFIEDChange in 2-hydroxyglutarate (2HG) LevelsUp to 12 months
OTHER_PRE_SPECIFIEDMinimal Residual Disease (MRD) AssessmentUp to 12 months
OTHER_PRE_SPECIFIEDMutant Allele FrequencyUp to 12 months

Results by group10

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

OutcomeGroupCategoryValueSpreadUnits
Cumulative Overall Response Rate (ORR)Treatment (Olaparib)Complete remission (CR)0Participants
Cumulative Overall Response Rate (ORR)Treatment (Olaparib)Complete remission with incomplete hematologic response0Participants
Cumulative Overall Response Rate (ORR)Treatment (Olaparib)Complete remission with partial hematologic response0Participants
Cumulative Overall Response Rate (ORR)Treatment (Olaparib)Composite CR rate (CR+CRi+CRh)0Participants
Cumulative Overall Response Rate (ORR)Treatment (Olaparib)No Response12Participants
ORRTreatment (Olaparib)OR = Yes0Participants
ORRTreatment (Olaparib)OR = No12Participants
Progression-free Survival (PFS)Treatment (Olaparib)2.3Full Range 0.4 to 5.6months
Overall Survival (OS)Treatment (Olaparib)3.4Full Range 0.4 to 35.3months
Incidence of Adverse EventsTreatment (Olaparib)12Participants

Participant flow4

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDTreatment (Olaparib)14
Overall StudyStarted TherapyTreatment (Olaparib)12
Overall StudyCOMPLETEDTreatment (Olaparib)0
Overall StudyNOT COMPLETEDTreatment (Olaparib)14

Adverse events88

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnemiaBlood and lymphatic system disordersTreatment (Olaparib)612
otherFebrile neutropeniaBlood and lymphatic system disordersTreatment (Olaparib)412
otherLeukocytosisBlood and lymphatic system disordersTreatment (Olaparib)212
otherAtrial fibrillationCardiac disordersTreatment (Olaparib)112
otherMyocardial infarctionCardiac disordersTreatment (Olaparib)112
otherSinus tachycardiaCardiac disordersTreatment (Olaparib)112
otherVision decreasedEye disordersTreatment (Olaparib)112
otherDisease progressionGeneral disordersTreatment (Olaparib)112
otherFatigueGeneral disordersTreatment (Olaparib)112
otherFeverGeneral disordersTreatment (Olaparib)112

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityTreatment (Olaparib)1012
Total, other adverse eventsTreatment (Olaparib)1212
Total, serious adverse eventsTreatment (Olaparib)912

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

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
UM1CA186689VICKtOrY Early Clinical Trials ConsortiumLORUSSO, PATRICIA M.YALE UNIVERSITYNATIONAL CANCER INSTITUTE2014 to 2025

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/NCT03953898

GET https://conductscience.org/api/trials/v1/NCT03953898/events?page=2