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Phase III Randomized Study of Concurrent Tretinoin and Chemotherapy With or Without Arsenic Trioxide (AS2O3) (NSC # 706363) as Initial Consolidation Therapy Followed by Maintenance Therapy With Intermittent Tretinoin Versus Intermittent Tretinoin Plus Mercaptopurine and Methotrexate for Patients With Untreated Acute Promyelocytic Leukemia (NCT00003934)

This randomized phase III trial is studying tretinoin and combination chemotherapy to see how well they work compared to tretinoin, combination chemotherapy, and arsenic trioxide in treating patients with acute promyelocytic leukemia that has not been treated previously. Drugs used in chemotherapy, such as daunorubicin, cytarabine, mercaptopurine, methotrexate, and arsenic trioxide, work in different ways to stop cancer cells from dividing so they stop growing or die. Tretinoin may help leukemia cells develop into normal white blood cells. It is not yet known which regimen is more effective for acute promyelocytic leukemia.
  • Drug: tretinoin
    Given orally
    • ATRA
    • Retin-A
    • TRA
  • Drug: daunorubicin hydrochloride
    Given IV
    • Cerubidin
    • Cerubidine
    • daunomycin hydrochloride
    • daunorubicin
    • RP-13057
  • Drug: cytarabine
    Given IV
    • ARA-C
    • arabinofuranosylcytosine
    • arabinosylcytosine
    • Cytosar-U
    • cytosine arabinoside
  • Drug: mercaptopurine
    Given IV
    • 6-mercaptopurine
    • 6-MP
    • Leukerin
    • MP
  • Drug: methotrexate
    Given IV
    • amethopterin
    • Folex
    • methylaminopterin
    • Mexate
    • MTX
  • Drug: arsenic trioxide
    Given IV
    • Arsenic (III) Oxide
    • Arsenic Sesquioxide
    • Arsenous Acid Anhydride
    • AS2O3
    • Trisenox
Ages eligible for Study
all
Genders eligible for Study
All
Accepts Healthy Volunteers
No
PRIMARY OBJECTIVES:

i. To compare the efficacy (event-free survival) and toxicities of two induction/consolidation therapies for patients with untreated APL: ATRA/ara-C/daunorubicin with or without arsenic trioxide (As2O3).

II. To evaluate the efficacy (disease-free survival) and toxicities of maintenance therapy with intermittent ATRA vs intermittent ATRA plus 6-MP/MTX for patients with APL who achieve a complete response.

III. To explore the relationship between CD56 expression at diagnosis and clinical outcomes.

IV. To evaluate the cardiac toxicity of intensive daunorubicin therapy, as given in this study, to pediatric patients.

OUTLINE: This is a randomized, multicenter study. Patients are stratified according to age (under 15 vs 15 to 60 vs over 60) for the induction phase. Patients are stratified according to age, as in the induction phase, and the consolidation arm (with vs without arsenic trioxide) for the consolidation phase. Patients under age 5 do not receive arsenic trioxide.

Induction: All patients receive oral tretinoin every 12 hours beginning on day 1 until complete response or for a maximum of 90 days. Patients also receive daunorubicin IV on days 3-6 and cytarabine IV continuously on days 3-9.

Consolidation: All patients achieving complete response (CR), or partial response (PR) after completion of tretinoin, proceed to consolidation within 2 weeks of achieving CR or PR, but not prior to 30 days from the start of induction. Patients are randomized to 1 of 2 treatment arms.

Arm I: Patients receive oral tretinoin every 12 hours on days 1-7 and daunorubicin IV on days 1-2 or days 1-3, depending on age. Patients may receive an additional course. Treatment begins no earlier than 2 weeks and no later than 4 weeks after hematopoietic recovery.

Arm II: Patients receive arsenic trioxide IV over 2 hours daily 5 days a week for 5 weeks. After a 2-week rest, patients receive a second course of arsenic trioxide. Patients then receive tretinoin and daunorubicin as in arm I.

Maintenance: Patients maintaining CR or PR after consolidation therapy proceed to maintenance therapy, beginning no earlier than 2 weeks and no later than 4 weeks after hematopoietic recovery. Patients are randomized to 1 of 2 treatment arms.

Arm I: Patients receive oral tretinoin every 12 hours for 7 days every other week for 1 year.

Arm II: Patients receive oral tretinoin as in arm I above. Patients also receive oral mercaptopurine once a day and oral methotrexate once weekly for up to 1 year.

Maintenance therapy continues for up to 1 year in the absence of unacceptable toxicity.

Patients are followed every 2 months for 2 years, every 3 months for 1 year, every 6 months for 2 years, and then annually for 5 years.

PROJECTED ACCRUAL: A total of 522 patients (456 adults and 66 pediatric) will be accrued for this study within 4.75 years.

2 locations

United States (2)
  • Cancer and Leukemia Group B
    Not specified
    Chicago, Illinois, United States, 60606
  • Comprehensive Cancer Center of Wake Forest University
    Not specified
    Winston-Salem, North Carolina, United States, 27157
Status:
completed
Type:
Interventional
Phase:
Start:
31 May, 1999
Updated:
03 June, 2013
Participants:
420
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