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Daunorubicin & Cytarabine +/- Zosuquidar inTreating Older Patients With Newly Diagnosed Acute Myeloid Leukemia or Refractory Anemia

A Randomized, Placebo-Controlled, Double Blind, Trial of the Administration of the MDR Modulator, Zosuquidar Trihydrochloride (LY335979), During Conventional Induction and Post-Remission Therapy in Patients Greater Than 60 Years of Age With Newly Diagnosed Acute Myeloid Leukemia, Refractory Anemia With Excess Blasts in Transformation or High-Risk Refractory Anemia With Excess Blasts

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00046930
Enrollment
449
Registered
2003-01-27
Start date
2002-09-17
Completion date
Unknown
Last updated
2023-07-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Leukemia, Myelodysplastic Syndromes

Keywords

adult acute monocytic leukemia (M5b), adult acute erythroid leukemia (M6), adult acute megakaryoblastic leukemia (M7), adult acute myeloblastic leukemia with maturation (M2), adult acute myeloblastic leukemia without maturation (M1), adult acute myelomonocytic leukemia (M4), adult acute monoblastic leukemia (M5a), refractory anemia with excess blasts in transformation, refractory anemia with excess blasts, secondary acute myeloid leukemia, untreated adult acute myeloid leukemia, de novo myelodysplastic syndromes, adult acute minimally differentiated myeloid leukemia (M0), adult acute myeloid leukemia with 11q23 (MLL) abnormalities, adult acute myeloid leukemia with inv(16)(p13;q22), adult acute myeloid leukemia with t(16;16)(p13;q22), adult acute myeloid leukemia with t(8;21)(q22;q22)

Brief summary

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Zosuquidar trihydrochloride, a modulator of multidrug resistance (MDR), may help daunorubicin and cytarabine kill more cancer cells by making cancer cells more sensitive to the drugs. It is not yet known whether daunorubicin and cytarabine are more effective with or without zosuquidar trihydrochloride in treating acute myeloid leukemia or anemia. PURPOSE: This randomized phase III trial is studying how well giving zosuquidar trihydrochloride together with daunorubicin and cytarabine works compared to daunorubicin and cytarabine alone in treating older patients with newly diagnosed acute myeloid leukemia or anemia that has not responded to previous treatment.

Detailed description

OBJECTIVES: * Compare the overall survival and progression-free survival of elderly patients with newly diagnosed acute myeloid leukemia, refractory anemia with excess blasts (RAEB) in transformation, or high-risk RAEB treated with daunorubicin and cytarabine with or without zosuquidar trihydrochloride. * Compare the complete remission rate of patients treated with these regimens. * Compare the toxicity of these regimens in these patients. * Compare the systemic exposure of daunorubicin and cytarabine in patients treated with zosuquidar trihydrochloride vs placebo. OUTLINE: This is a randomized, double-blind, placebo-controlled, multicenter study. Patients are stratified according to age (60-69 years vs 70 years and over), disease (refractory anemia with excess blasts \[RAEB\] vs RAEB in transformation or acute myeloid leukemia \[AML\]), and disease type (de novo vs secondary). Patients are randomized to 1 of 2 treatment arms. * Induction: * Arm I: Patients receive daunorubicin via intravenous (IV) infusion over 10-15 minutes and zosuquidar trihydrochloride IV over 6 hours on days 1-3. Patients also receive cytarabine IV continuously on days 1-7. * Arm II: Patients receive daunorubicin and cytarabine as in arm I. Patients also receive placebo IV over 6 hours on days 1-3. Beginning on day 12, patients who achieve aplasia receive filgrastim (G-CSF) or sargramostim (GM-CSF) subcutaneously (SC) or IV daily until blood counts recover. Patients who have evidence of persistent AML are eligible to receive a second identical course of induction chemotherapy. * Consolidation I (beginning within 8 weeks after documentation of complete remission \[CR\] or measurable remission \[MR\]): Patients who achieve a CR or MR receive cytarabine IV over 1 hour once or twice daily on days 1-6 and GM-CSF or G-CSF SC or IV beginning on day 7 and continuing until blood counts recover. * Consolidation II: Patients who have maintained peripheral blood evidence of a remission receive daunorubicin, cytarabine, and zosuquidar trihydrochloride or placebo as in induction chemotherapy. Patients also receive GM-CSF or G-CSF SC or IV beginning on day 8 or after last cytarabine dose and continuing until blood counts recover. Patients are followed monthly for 1 year, every 2 months for 1 year, every 3 months for 1 year, and then every 6 months for 2 years. PROJECTED ACCRUAL: Approximately 450 patients (225 per treatment arm) accrued over 4.1 years.

Interventions

BIOLOGICALfilgrastim

250 μg/m2/day by either intravenous or subcutaneous injection starting day 12, provided marrow aplasia is achieved, through recovery of absolute neutrophil count (ANC) to \> 500 cells/μl, sustained for 3 consecutive days. The dose may be rounded to the nearest vial size.

BIOLOGICALsargramostim

5 μg/kg/day by either intravenous or subcutaneous injection starting day 12, provided marrow aplasia is achieved, through recovery of absolute neutrophil count (ANC) to \> 500 cells/μl, sustained for 3 consecutive days. The dose may be rounded to the nearest vial size.

DRUGcytarabine

100 mg/m²/day by continuous intravenous infusion for 7 days (days 1-7).

DRUGdaunorubicin hydrochloride

45 mg/m²/day by 10 - 15 minute intravenous infusion for 3 days (days 1, 2, and 3).

DRUGzosuquidar trihydrochloride

Zosuquidar 550 mg/day by continuous intravenous infusion through a central venous catheter over approximately 6 hours on days 1, 2, and 3. The infusion will begin approximately one hour prior to daunorubicin on days 1, 2 and 3.

DRUGPlacebo

Placebo 550 mg/day by continuous intravenous infusion through a central venous catheter over approximately 6 hours on days 1, 2, and 3. The infusion will begin approximately one hour prior to daunorubicin on days 1, 2 and 3. Placebo consisted of a 1:1000 dilution of Infuvite, appropriately colored.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Eli Lilly and Company
CollaboratorINDUSTRY
Kanisa Pharmaceuticals
CollaboratorINDUSTRY
Eastern Cooperative Oncology Group
Lead SponsorNETWORK

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
60 Years to No maximum
Healthy volunteers
No

Inclusion criteria

One of the following disorders: * Acute myeloid leukemia (AML), defined as \>30% myeloblasts on the marrow aspirate or peripheral blood differential and any French-American-British (FAB) subtype except M3 (i.e., acute promyelocytic leukemia) * Refractory anemia with excess blasts (RAEB), defined as 11-20% myeloblasts on bone marrow aspirate or peripheral blood differential, provided there are other criteria for high-risk disease * Refractory anemia with excess blasts in transformation (RAEB-T), defined as 21-30% myeloblasts on bone marrow aspirate or peripheral blood differential * Participants may have secondary AML * Age greater than 60 years * ECOG performance status of 0 to 3 * Total serum bilirubin \< 3 mg/dL * Serum creatinine \< 2 mg/dL * Cardiac ejection fraction of \> 45%

Exclusion criteria

* Blastic transformation of chronic myelogenous leukemia * CNS leukemia * Prior chemotherapy for AML, with the exception of hydroxyurea * For women: pregnant or breast feeding * Other malignancy for which participant is currently receiving treatment * Concurrent treatment with other colony-stimulating factors

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS)Assessed every 3 months for 2 years, then every 6 months for 3 years, then annually thereafterTime from randomization to death. Patients alive at last follow-up were censored.

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS)Assessed every 3 months for 2 years, then every 6 months for 3 years, then annually thereafterTime from randomization to the earlier of disease progression or death. Patients alive and progression-free at last follow-up were censored.
ResponseAssessed at the end of inductionNumber of eligible participants in each response category. Categories, based on peripheral blood counts and bone marrow aspirate and biopsy, include complete remission (CR), partial remission (PR), morphologic complete remission (MCR), and relapse.

Countries

Israel, United States

Participant flow

Recruitment details

The first patient was accrued on September 17, 2002.

Participants by arm

ArmCount
Zosuquidar
Induction treatment with daunorubicin, cytarabine and zosuquidar
212
Placebo
Induction treatment with daunorubicin, cytarabine and placebo
221
Total433

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyIneligible124

Baseline characteristics

CharacteristicZosuquidarPlaceboTotal
Age, Continuous69.4 years
STANDARD_DEVIATION 5.5
69.2 years
STANDARD_DEVIATION 5.3
69.3 years
STANDARD_DEVIATION 5.4
Sex: Female, Male
Female
103 Participants85 Participants188 Participants
Sex: Female, Male
Male
109 Participants136 Participants245 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
218 / 219221 / 222180 / 18059 / 5970 / 70
serious
Total, serious adverse events
216 / 219218 / 222173 / 18059 / 5969 / 70

Outcome results

Primary

Overall Survival (OS)

Time from randomization to death. Patients alive at last follow-up were censored.

Time frame: Assessed every 3 months for 2 years, then every 6 months for 3 years, then annually thereafter

Population: Eligible participants, as randomized

ArmMeasureValue (MEDIAN)
ZosuquidarOverall Survival (OS)7.23 Months
PlaceboOverall Survival (OS)9.43 Months
Comparison: The study was designed to have 80% power to detect a non-proportional hazards difference in OS at the one-sided 0.025 significance level of 30.2% vs 39.6%, 12.8% vs 27.1% and 7.0% vs 14.0% at 1 years, 2 years, and full information for zosuquidar and placebo, respectively.p-value: 0.28Log Rank
Secondary

Progression-free Survival (PFS)

Time from randomization to the earlier of disease progression or death. Patients alive and progression-free at last follow-up were censored.

Time frame: Assessed every 3 months for 2 years, then every 6 months for 3 years, then annually thereafter

Population: Eligible participants, as randomized. Patients who had neither documented progression nor death within 3 months of registration without disease evaluation were excluded.

ArmMeasureValue (MEDIAN)
ZosuquidarProgression-free Survival (PFS)3.02 Months
PlaceboProgression-free Survival (PFS)2.04 Months
p-value: 0.16Log Rank
Secondary

Response

Number of eligible participants in each response category. Categories, based on peripheral blood counts and bone marrow aspirate and biopsy, include complete remission (CR), partial remission (PR), morphologic complete remission (MCR), and relapse.

Time frame: Assessed at the end of induction

ArmMeasureGroupValue (NUMBER)
ZosuquidarResponseUnevaluable33 Participants
ZosuquidarResponseMorphologic Complete Remission12 Participants
ZosuquidarResponseComplete Remission98 Participants
ZosuquidarResponsePartial Remission2 Participants
ZosuquidarResponseRelapse67 Participants
PlaceboResponsePartial Remission0 Participants
PlaceboResponseRelapse90 Participants
PlaceboResponseUnevaluable23 Participants
PlaceboResponseComplete Remission96 Participants
PlaceboResponseMorphologic Complete Remission12 Participants
Comparison: Test of difference in the CR (complete remission) rate between the arms.p-value: 0.61795% CI: [0.77, 1.65]Mantel Haenszel

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026