Multidrug Resistance Genes in Patients With Acute Myeloid Leukemia
Fjalë kyçe
Abstrakt
Përshkrim
PRIMARY OBJECTIVES:
I. To investigate the association of common single nucleotide polymorphisms (SNPs) and haplotypes of the three multidrug resistance (MDR) genes with treatment outcome in the clinical studies.
II. To assess the effect of ATP-binding cassette (ABC) B1, ABCC1, and ABCG2 polymorphisms and haplotypes on treatment outcome in younger patients enrolled on Cancer and Leukemia Group B (CALGB) 9621 and 19808.
III. To assess the effect of ABCB1, ABCC1, and ABCG2 polymorphisms and haplotypes on treatment outcome in older patients enrolled on CALGB 9720.
SECONDARY OBJECTIVES:
I. To test the hypothesis that ABCB1, ABCC1, and ABCG2 polymorphisms and haplotypes are associated with phosphoglycolate phosphatase (Pgp), multidrug resistance protein 1 (MRP-1), and ATP-binding cassette, sub-family G (WHITE), member 2 (Junior blood group) (BCRP) function and expression in pre-treatment blasts from acute myeloid leukemia (AML) patients.
II. To assess the effect of ABCB1, ABCC1, and ABCG2 polymorphisms and haplotypes on PGP, MRP-1, and BCRP function through CALGB 9760 in younger patients enrolled on CALGB 9621 and 19808.
III. To assess the effect of ABCB1, ABCC1, and ABCG2 polymorphisms and haplotypes on PGP, MRP-1, and BCRP function through CALGB 9760 in older patients from CALGB 9720.
IV. To conduct an exploratory analysis of the association of additional candidate genes relevant to etoposide, cytarabine, and daunorubicin with chemotherapy response and toxicity.
OUTLINE:
Leukemia blast cells obtained from bone marrow aspirate or peripheral blood at diagnosis are used to study polymorphisms and haplotypes of ATP-binding cassette (ABC) B1, ABCC1, ABCG2, and other candidate genes. Multidrug resistance (MDR) protein expression and function are also analyzed using leukemia blast cells from patients enrolled on CALGB-9760.
PROJECTED ACCRUAL: Tissue samples from over 600 patients will be accrued for this study.
Datat
| Verifikuar së fundmi: | 06/30/2020 |
| Paraqitur së pari: | 05/08/2009 |
| Regjistrimi i vlerësuar u dorëzua: | 05/08/2009 |
| Postuar së pari: | 05/11/2009 |
| Përditësimi i fundit i paraqitur: | 07/21/2020 |
| Përditësimi i fundit i postuar: | 07/23/2020 |
| Data e fillimit të studimit aktual: | 09/30/2006 |
| Data e vlerësuar e përfundimit primar: | 12/31/2099 |
Gjendja ose sëmundja
Ndërhyrja / trajtimi
Genetic: Group 1
Genetic: Group 1
Genetic: Group 1
Genetic: Group 1
Other: Group 1
Faza
Grupet e krahëve
| Krah | Ndërhyrja / trajtimi |
|---|---|
| Group 1 Leukemia blast cells obtained from bone marrow aspirate or peripheral blood at diagnosis are used to study polymorphisms and haplotypes of ATP-binding cassette (ABC) B1, ABCC1, ABCG2, and other candidate genes. Multidrug resistance (MDR) protein expression and function are also analyzed using leukemia blast cells from patients enrolled on CALGB-9760. | Genetic: Group 1 |
Kriteret e pranimit
| Moshat e pranueshme për studim | 15 Years Për të 15 Years |
| Gjinitë e pranueshme për studim | All |
| Metoda e marrjes së mostrës | Non-Probability Sample |
| Pranon Vullnetarë të Shëndetshëm | po |
| Kriteret | DISEASE CHARACTERISTICS: - Diagnosis of acute myeloid leukemia - Treated on protocols CALGB-9621, CALGB-9720, or CALGB-19808 - Registered on the mandatory companion Leukemia Tissue Bank Protocol CALGB-9665 - Registration on another companion trial, CALGB-9760, (Multidrug Resistance Studies in Acute Leukemia) allowed PATIENT CHARACTERISTICS: - Not specified PRIOR CONCURRENT THERAPY: - See Disease Characteristics |
Rezultati
Masat Kryesore të Rezultateve
1. Correlation of common single nucleotide polymorphisms (SNPs) and haplotypes of the 3 multidrug resistance genes (P-glycoprotein [Pgp], multidrug resistance-associated protein (MRP-1) and breast cancer resistance protein [BCRP]) with treatment outcome [Baseline]
2. Effect of ATP-binding cassette (ABC) B1, ABCC1, and ABCG2 polymorphisms on treatment outcome [Baseline]
Masat dytësore të rezultateve
1. Association of ABCB1, ABCC1, and ABCG2 polymorphisms and haplotypes with Pgp, MRP-1, and BCRP function and expression in pre-treatment blasts [Baseline]
2. Effect of ABCB1, ABCC1, and ABCG2 polymorphisms and haplotypes on Pgp, MRP-1, and BCRP function [Baseline]
3. Association of additional candidate genes relevant to etoposide, cytarabine, and daunorubicin with chemotherapy response and toxicity [Baseline]
