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Biomarkers in Predicting Treatment Response to Sirolimus and Chemotherapy in Patients With High-Risk Acute Myeloid Leukemia

A Biomarker Validation Study to Establish Whether Serial Flow Cytometric Measurements Predict Clinical Response to Sirolimus and MEC (Mitoxantrone Etoposide Cytarabine) Treatment in Patients With High-Risk Acute Myelogenous Leukemia

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02583893
Enrollment
39
Registered
2015-10-22
Start date
2015-10-07
Completion date
2023-05-17
Last updated
2026-05-29

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

Conditions

Recurrent Adult Acute Myeloid Leukemia, Secondary Acute Myeloid Leukemia, Untreated Adult Acute Myeloid Leukemia

Brief summary

This pilot phase II trial studies whether biomarkers (biological molecules) in bone marrow samples can predict treatment response to sirolimus and chemotherapy (mitoxantrone hydrochloride, etoposide, and cytarabine \[MEC\]) in patients with acute myeloid leukemia (AML) that is likely to come back or spread (high-risk). Sirolimus inhibits or blocks the pathway that causes cancer cells to grow. Adding sirolimus to standard chemotherapy may help improve patient response. Studying samples of bone marrow from patients treated with sirolimus in the laboratory may help doctors learn whether sirolimus reverses or turns off that pathway and whether changes in biomarker levels can predict how well patients will respond to treatment.

Detailed description

PRIMARY OBJECTIVES: I. To test the association between biochemical response and clinical response. SECONDARY OBJECTIVES: I. To estimate complete response rate of sirolimus MEC in patients with high risk AML. II. To estimate progression free survival in this patient population. III. To collect further information on the safety, tolerability, and efficacy of sirolimus in combination with MEC in patients with relapsed or refractory myeloid malignancies. OUTLINE: Patients undergo collection of bone marrow samples prior to sirolimus dosing on day 4 and within 1 week and no later than day 45 of hematologic recovery. Patients receive sirolimus orally (PO) on days 2-9 (loading dose on day 1 only), and standard MEC chemotherapy comprising mitoxantrone hydrochloride intravenously (IV) over 15 minutes, etoposide IV over 1 hour, and cytarabine IV over 1 hour every 24 hours on day 4-8. After completion of study treatment, patients are followed up every 3 months for 2 years.

Interventions

DRUGSirolimus

Given PO

DRUGMitoxantrone

Given IV

DRUGEtoposide

Given IV

DRUGCytarabine

Given IV

Sponsors

Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

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

Inclusion criteria

1. Patients must have histologic evidence of high risk acute myeloid leukemia defined as one of the following: 1. Primary refractory non-M3 AML * Residual leukemia after a minimum of 2 prior courses of chemotherapy (Same or different) * Evidence of leukemia recurrence after a nadir bone marrow biopsy demonstrates no evidence of residual leukemia. * Evidence of leukemia after induction therapy which, in the opinion of the investigator, would be appropriate for reinduction with sirolimus/MEC therapy. 2. Relapsed non-M3 AML 3. Previously untreated non-M3 AML age \>60 with no evidence of favorable karyotype defined by presence of t(8;21)(q22;q22) \[AML1-ETO\], inv16(p13;q22), or t(16;16)(p13;q22) \[CBFβ;MYH11\] by cytogenetics, FISH, or RT-PCR 4. Previously untreated secondary AML (from antecedent hematologic malignancy or following therapy with radiation or chemotherapy for another disease) with no evidence of favorable karyotype defined by presence of t(8;21)(q22;q22) \[AML1-ETO\], inv16(p13;q22), or t(16;16)(p13;q22) \[CBFβ;MYH11\] by cytogenetics, FISH, or RT-PCR 2. Subjects must be ≥ 18 years of age. 3. Subjects must have an ECOG performance status of 2 or less (see Appendix1). 4. Subjects must have a life expectancy of at least 4 weeks. 5. Subjects must be able to consume oral medication. 6. Subjects must have recovered from the toxic effects of any prior chemotherapy to =\< Grade 1 (except alopecia). 7. Required initial laboratory values: 1. Creatinine ≤ 2.0mg/dL 2. total or direct bilirubin ≤ 1.5mg/dL; SGPT (ALT) ≤ 3xULN 3. negative pregnancy test for women with child-bearing potential. 8. Patients must be able to sign consent and be willing and able to comply with scheduled visits, treatment plan and laboratory testing. 9. Subjects must have a left ventricular ejection fraction (LVEF) of ≥ 45%.

Exclusion criteria

1. Subjects with FAB M3 (t (15; 17) (q22; q21) \[PML-RARα\]) are not eligible. 2. Subjects must not be receiving any chemotherapy agents (except Hydroxyurea). a) Intrathecal methotrexate and cytarabine are permissible. 3. Subjects must not be receiving growth factors, except for erythropoietin. 4. Subjects with a "currently active" second malignancy, other than non-melanoma skin cancers are not eligible. 5. Subjects with uncontrolled high blood pressure, unstable angina, symptomatic congestive heart failure, myocardial infarction within the past 6 months or serious uncontrolled cardiac arrhythmia are not eligible. 6. Subjects taking the following are not eligible: 1. Carbamazepine (e.g., Tegretol) 2. Rifabutin (e.g., Mycobutin) or 3. Rifampin (e.g., Rifadin) 4. Rifapentine (e.g., Priftin) 5. St. John's wort 6. Clarithromycin (e.g., Biaxin) 7. Cyclosporine (e.g. Neoral or Sandimmune) 8. Diltiazem (e.g., Cardizem) 9. Erythromycin (e.g., Akne-Mycin, Ery-Tab) 10. Itraconazole (e.g., Sporanox) 11. Ketoconazole (e.g., Nizoral) 12. Telithromycin (e.g., Ketek) 13. Verapamil (e.g., Calan SR, Isoptin, Verelan) 14. Voriconazole (e.g., VFEND) 15. Tacrolimus (e.g. Prograf) Subjects taking fluconozole, voriconizole, itraconazole, posaconazole, and ketokonazole within 72 hours of study drug starting are not eligible. Reinstitution of fluconozole, voriconizole, itraconazole, posaconazole, ketokonazole and diltiazem is permissible 72 hours after the last dose of sirolimus.

Design outcomes

Primary

MeasureTime frameDescription
Biochemical ResponseBaseline to day 4Defined by change in phosphorylated ribosomal protein S6 (pS6) positive blasts, measured as the % reduction in pS6 positive blasts from baseline to day 4. Biochemical response will be described by mean, median, standard deviation, range and coefficient of variation. The association between biochemical response and clinical response will be tested by Fisher's exact test.
Clinical ResponseDay 45Clinical response was assessed at Day 45 using IWG criteria: Complete Remission (CR), CR with incomplete platelet recovery (CRp), CR with incomplete hematologic recovery (CRi), Partial Remission (PR), or No Response (NR). CR requires normalized blood counts and bone marrow blasts \<5%. CRp meets CR except platelet recovery; CRi meets CR except incomplete neutrophil/platelet recovery. PR is ≥50% reduction in marrow blasts to 5-25% with partial blood count improvement. NR indicates failure to meet these criteria. Tumor response per RECIST v1.0: CR = disappearance of all target lesions; PR = ≥30% decrease in sum of longest diameters; Overall Response = CR + PR. Progression = ≥20% increase in sum of longest diameters, measurable increase in non-target lesion, or new lesions.

Secondary

MeasureTime frameDescription
Overall Response Rate (ORR) (Complete Response [CR], CR With Incomplete Platelet Recovery [CRp], or Partial Response)Day 45Fraction of patients who achieve CR, CRp, or PR will be assessed. ORR and 95% exact confidence interval will be computed for all patients and for sensitive and resistant subgroups.
Relapse Free Survival (RFS)Time from study entry to first documented progression, death, or last contact, assessed up to 2 yearsRFS will be estimated by the Kaplan-Meier method. A landmark analysis of RFS by clinical response (CR+CRp, CRi, PR or no response \[NR\]) will be computed from day 45 marrow assessment. Median values and 95% confidence intervals will be calculated.
Percentage of Participants by Risk GroupUp to 2 yearsOverall Survival (OS) is defined as the time from study entry to death or last contact. OS will be analyzed by risk groups: Favorable, Intermediate, and Poor/Adverse, based on baseline factors such as cytogenetics, molecular markers, and clinical characteristics. These risk groups are used to predict clinical outcomes, with favorable indicating longer survival expectancy, intermediate suggesting moderate outcomes, and poor/adverse indicating more aggressive disease with lower survival rates. Results will be reported as the percentage of participants in each risk category.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORMargaret Kasner, MD

Thomas Jefferson University

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
8 Participants
Age, Categorical
Between 18 and 65 years
31 Participants
Age, Continuous59 years
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
36 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
11 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
26 Participants
Sex: Female, Male
Female
24 Participants
Sex: Female, Male
Male
15 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 39
other
Total, other adverse events
27 / 39
serious
Total, serious adverse events
5 / 39

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 30, 2026