Rapid Profiling of Bone Marrow, at Presentation and After 5 Days of Induction Therapy

Rapid Profiling of Bone Marrow, at Presentation and After 5 Days of Induction Therapy, a Sensitive Method for Identifying Resistant AML Clones

Personalization of AML therapy, require a reliable mechanism for accurate characterization of patient specific leukemia phenotype and genotype. Patient's specific leukemic phenotype or in practical clinical term, patient's leukemia sensitivity to induction therapy, should best investigated in-vivo during induction. Elimination of circulating leukemic blasts from peripheral blood by day 5 was shown to discriminate between good responders with superior long term survival and poor responders with poor outcome. However, many AML patients have no circulating blasts at diagnosis and even in those who have, elimination rate of it from peripheral blood was never correlated with actual response in bone marrow.

Currently, the only available source for patient's specific leukemia profile, is the bone marrow sample at diagnosis. Since leukemic blasts are heterogeneous and come from multiple different clones, "on diagnosis" marrow consist a spectrum of chemotherapy sensitive and resistance clones. Clones may vary by their molecular abnormalities and results from "on diagnosis" marrow may overlook minor resistant but existing clones. Long term prognosis is determined by those resistant clones and though our interests should be focused into the abnormalities of these clones. Residual blasts on day 5 marrow may better represent the profile of patient's leukemic resistant clones.

Study Overview

• Status: Unknown
• Conditions: AML

• Study Type: Observational
• Enrollment (Anticipated): 50

Contacts and Locations

Study Locations

• Israel
  • Haifa, Israel, 31096
    • Recruiting
    • Rambam Medical Center
    • Contact: Yishai Ofran, MD; Phone Number: 972-4-8542541; Email: y_ofran@rambam.health.gov.il
    • Principal Investigator: Yishai Ofran, MD

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Adults (>18) AML patients

Description

Inclusion Criteria:

• Diagnosis of acute myeloid leukemia other than APL
• Age > 18
• Patient's considered by their physician "fit" for intensive induction therapy

Exclusion Criteria:

• Withdrawal of informed consent or inability to consent
• Previous allogeneic transplantation.

• One of the following lab values persistent from presentation to day 5:

  • Serum creatinine > 2mg/dl, Direct bilirubin > 2mg/dl
  • SGOT (AST) > x4 upper limit of normal
  • Left ventricular ejection fraction < 40% as assessed 2-D echocardiogram
  • Coagulation abnormalities (INR > 1.6, PTT > x1.5 normal range)

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
AML induction; Adults AML patients who were referred for intensive induction therapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
complete remission	Bone marrow blasts <5% upon recovery from induction therapy	30-54 days

Secondary Outcome Measures

Outcome Measure	Time Frame
Overall survival	two years
relapse rate	two years

Collaborators and Investigators

• Sponsor: Rambam Health Care Campus
• Investigators: Principal Investigator: Yishai Ofran, MD, Rambam Health Care Campus

Study record dates

Study Major Dates

• Study Start: February 1, 2011
• Primary Completion (Anticipated): August 1, 2014

Study Registration Dates

• First Submitted: December 30, 2010
• First Submitted That Met QC Criteria: December 30, 2010
• First Posted (Estimate): December 31, 2010

Study Record Updates

• Last Update Posted (Estimate): May 6, 2014
• Last Update Submitted That Met QC Criteria: May 5, 2014
• Last Verified: May 1, 2014

More Information

Terms related to this study

• Keywords: AML; Induction
• Other Study ID Numbers: 0588-10-rmb-CTIL