Chemotherapy Followed by Allogeneic Stem Cell Transplantation for Hematologic Malignancies

October 30, 2020 updated by: John M. Hill, Jr., MD, Dartmouth-Hitchcock Medical Center

Non-Myeloablative Chemotherapy Followed by HLA-Matched Related Allogeneic Stem Cell Transplantation for Hematologic Malignancies

The purpose of this study is to determine disease-free survival, overall survival, time to progression, regimen-related toxicity and/or treatment-related mortality in patients with hematologic malignancies treated with non-myeloablative chemotherapy followed by allogeneic stem cell transplant.

Study Overview

Detailed Description

Allogeneic bone marrow transplantation (BMT) became feasible in the 1960s after elucidation of the Human Leukocyte Antigen (HLA) complex. Since then, the therapy has evolved into an effective treatment for many hematologic disorders. Otherwise incurable malignancies are frequently cured by this approach, with the likelihood of cure ranging from 10% to 85%, depending on the disease and the disease status. The treatment strategy incorporates very large doses of chemotherapy and often radiation to eliminate cancer cells and to immunosuppress the recipient to allow the engraftment of donor cells. Donor cells give rise to hematopoiesis within two to three weeks, rescuing the patient from the effects of high dose therapy. In the ideal situation, immune recovery and recipient-specific tolerance occurs over the following 6-18 months, and the patient is cured of their underlying malignancy, off immunosuppression, with a functionally intact donor-derived immune system. However, complications are common and include fatal organ damage from the effects of high dose chemotherapy, infection, hemorrhage, and, in particular, graft-versus-host disease (GvHD). A realistic estimate of transplant-related mortality in the standard HLA-matched sibling setting is approximately 25%. The risk of treatment-related mortality limits the success and certainly precludes its use in older patients. Thus, new strategies in transplantation are needed.

With the growing understanding that much of the curative potential of allogeneic bone marrow or stem cell transplant (SCT) is from an immune anti-tumor effect of donor cells, known as graft-versus-leukemia (GvL) or graft-versus-tumor (GvT), a new strategy is being employed that shifts the emphasis from high-dose chemo-radiotherapy to donor-derived, immune-mediated anti-tumor therapy. In this approach, patients receive preparative regimens that, while having some anti-tumor activity, are mainly designed to be immunosuppressive enough to allow engraftment of donor stem cells and lymphocytes. Engrafted lymphocytes then mediate a GvL effect; if the GvL effect of the initial transplant is not sufficient, then additional lymphocytes may be infused (achievement of engraftment allows additional lymphocytes to "take" in the recipient without requiring any additional conditioning of the recipient). The lower intensity of the preparative regimen lessens the overall toxicity by minimizing the doses of chemo-radiotherapy. In addition, less intensive preparative regimens may be associated with less GvHD, as much evidence suggests that high-dose therapy contributes to the syndrome of GvHD by causing tissue damage, leading to a cytokine milieu which enhances activation of graft-versus-host (GvH) effector cells. Thus, such an approach may allow the safer use of allogeneic transplants in standard populations and may allow extension of allogeneic transplantation to patients who could not receive standard (myeloablative) transplants because of age or co-morbidities. This protocol investigates a non-myeloablative transplant approach, using fludarabine and cyclophosphamide, to allow engraftment of allogeneic cells, which may then mediate anti-tumor effects.

Study Type

Interventional

Enrollment (Actual)

18

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • New Hampshire
      • Lebanon, New Hampshire, United States, 03756
        • Dartmouth-Hitchcock Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age: 18-75 years
  • Diseases

    1. Chronic myelogenous leukemia (CML)

      • First chronic phase or later
      • Accelerated phase
    2. Acute myelogenous or lymphoblastic leukemia (AML or ALL)

      • Second or subsequent remission
      • Patients who have failed an autologous PBSC transplant
      • First remission with poor risk features, including, but not limited to: For AML- complex chromosome karyotype, abnormalities of chromosome 5 or 7, 12p-, 13+, 8+, t(9;22), t(11;23) For ALL- t(9;22), t(4;11), t(1;19), myeloid antigen coexpression
    3. Myelodysplastic syndrome (MDS)
    4. Multiple myeloma - high risk myeloma (poor responders, relapse after autologous PBSCT, chromosome 13 abnormalities)
    5. Hodgkin's disease

      • Primary refractory disease
      • Relapsed disease (first relapse or later)
      • Patients who have failed an autologous PBSC transplant
    6. Non-Hodgkin's lymphoma Low grade (by Working Formulation)

      • Relapsed, progressive disease after initial chemotherapy
      • Primary refractory disease or failure to respond (>PR) to initial chemotherapy
      • Patients who have failed an autologous PBSC transplant Intermediate grade (by Working Formulation)
      • Relapsed disease
      • Primary refractory disease or failure to respond (>PR) to initial chemo
      • Mantle cell lymphoma
      • Patients who have failed an autologous PBSC transplant
    7. Chronic lymphocytic leukemia (CLL)

      • Patients newly diagnosed with poor prognostic factors, including CD38 expression, Chromosome 11 or 17 abn
      • T-CLL/PLL
      • Relapsed or progressive disease, or refractory after Fludarabine
      • Patients who have failed an autologous PBSC transplant
  • Donor Availability: Six of six matched HLA A, B and DR identical sibling (or parent or child) or 5/6 related donor with single mismatch at Class I antigen (A or B)
  • Karnofsky performance status of >70%
  • Serum bilirubin <2x upper limit of normal; transaminases <3x normal (unless due to disease)
  • 24 hr urine creatinine clearance of >40 ml/min.
  • DLCO >50% predicted
  • Left ventricular ejection fraction >35%
  • No active infection
  • Non-pregnant female
  • Signed informed consent
  • No major organ dysfunction or psychological problems that preclude compliance and completion of the clinical trial.

Exclusion Criteria

  • Major organ dysfunction
  • Pregnant or lactating female
  • Active infection
  • Psychological problems that preclude compliance and completion of the clinical trial
  • Any other condition, that in the judgement of the investigator, affects participant safety or overall participation

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Study Treatment
Chemotherapy, stem cell transplantation, HLA-Matched related allogeneic stem cell transplantation, leukapheresis, G-CSF, peripheral blood stem cell transplant, fludarabine, cyclophosphamide, donor lymphocyte infusion, cyclosporine, methotrexate

Donor: Prior to mobilization, leukapheresis to collect CD3+ cells. The donor will then receive G-CSF (10 mcg/kg/day) with leukapheresis collection of peripheral blood stem cells on days 5, 6 and 7 as needed. Goal of leukapheresis will be > 5 x 106 CD34+cells/kg of recipient.

Patient: Peripheral Blood Stem Cell (PBSC) Transplant. Fludarabine 25mg/m2/d IV over 30 minutes on days -6 to -2, followed by cyclophosphamide 1g/m2/d IV on days -3 and -2. This will be followed by allogeneic stem cell infusion 48 hours later.

Donor Lymphocyte Infusion (DLI) and Adjustment of Immunosuppression: Cyclosporine (CSA) and methotrexate (MTX) will be used for GvHD prophylaxis with target CSA levels of 200-400 ng/ml.

Other Names:
  • HLA-Matched Related Allogeneic Stem Cell Transplantation
10 mcg/kg/day on days 5, 6, and 7
25 mg/m2/d IV over 30 minutes on days -6 to -2
1 g/m2/d IV on days -3 and -2
used for GvHD prophylaxis with target CSA levels of 200-400 ng/ml
used for GvHD prophylaxis with target CSA levels of 200-400 ng/ml

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Successful Bone Marrow Engraftment
Time Frame: Within 30 days of bone marrow transplant
Rates of successful engraftment.
Within 30 days of bone marrow transplant

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Who Achieve Complete Donor Chimerism
Time Frame: Post-transplant days +30, +60, +100, +180 and +365
Complete donor chimerism
Post-transplant days +30, +60, +100, +180 and +365
Number of Participants Who Experienced Graft-Versus-Host-Disease
Time Frame: Post-transplant procedure through death
Collect the number of incidents of acute and chronic graft-versus-host disease
Post-transplant procedure through death
Overall Survival Measured in Participants
Time Frame: Up to 15 Years Post-Transplant
Mortality rates in subjects after successful completion of a bone marrow transplant
Up to 15 Years Post-Transplant
Collection of Adverse Events
Time Frame: Until the 6th Bone Marrow Transplant performed in subjects on study
Determine the level of toxicity experienced by subjects who receive protocol treatment and bone marrow transplant
Until the 6th Bone Marrow Transplant performed in subjects on study
Assess Disease Response
Time Frame: Post-transplant procedure through death
Review and assess the tumor response rate
Post-transplant procedure through death

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: John M Hill, MD, Dartmouth-Hitchcock Medical Center
  • Principal Investigator: Kenneth R Meehan, MD, Dartmouth-Hitchcock Medical Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2004

Primary Completion (Actual)

May 1, 2020

Study Completion (Actual)

May 1, 2020

Study Registration Dates

First Submitted

August 25, 2008

First Submitted That Met QC Criteria

August 25, 2008

First Posted (Estimate)

August 26, 2008

Study Record Updates

Last Update Posted (Actual)

November 23, 2020

Last Update Submitted That Met QC Criteria

October 30, 2020

Last Verified

October 1, 2020

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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