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AzTrials

LeukemiaPhase 1NCT00245115

Ex Vivo Expansion of Mafosfamide Purged CD34+ Cells in Patients With Acute Leukemia

A Phase 1 study testing filgrastim, busulfan and cyclophosphamide in people with Leukemia, run by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

RATIONALE: Giving colony-stimulating factors, such as G-CSF, and certain chemotherapy drugs, helps stem cells move from the bone marrow to the blood so they can be collected. Treating stem cells collected from the patient's blood or bone marrow with chemotherapy in the laboratory removes any remaining cancer cells. Read more about this study

Who is it for?
Ages Up to 70 years
Conditions the study is for
Leukemia
What is being tested?
filgrastim, busulfan and cyclophosphamide
Type of treatment
Surgery or procedure
How many people
7 participants
Where
1 siteUnited States
Study dates
Oct 2005to Jan 2012
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 70 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

None listed.

Who cannot join

  • Availability of a suitable matched HLA-identical sibling marrow donor
  • Intermediate or good risk acute leukemia in CR1 (39)
  • Age greater than 70
  • Weight less than 10 kg
  • Any risk of pregnancy - all female patients must have an effective form of contraception or be infertile due to hysterectomy, fallopian tube, surgery or premature menopause.
  • HIV Infection: Patients must be HIV negative for inclusion.
  • Poor organ function as defined in the BMT Policies and Procedures Manual.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

    Baltimore, Maryland, 21231

Other trials in United States

About this study

RATIONALE: Giving colony-stimulating factors, such as G-CSF, and certain chemotherapy drugs, helps stem cells move from the bone marrow to the blood so they can be collected. Treating stem cells collected from the patient's blood or bone marrow with chemotherapy in the laboratory removes any remaining cancer cells. Chemotherapy or radiation therapy is given to the patient to prepare the bone marrow for stem cell transplant. The treated stem cells are then returned to the patient to replace the blood-forming cells that were destroyed by the chemotherapy.

PURPOSE: This clinical trial is studying how well an autologous peripheral stem cell or bone marrow transplant using laboratory-treated cells works in treating patients with acute leukemia.

Read the detailed description

OBJECTIVES:

  • Determine the feasibility of ex vivo expanded mafosfamide-purged CD34-positive cells for autologous peripheral blood stem cell or bone marrow transplantation in patients with acute leukemia.
  • Determine the duration of aplasia associated with the use of ex vivo cytokine expanded mafosfamide-purged cells in patients treated with this regimen.
  • Determine, preliminarily, the event-free survival of patients treated with this regimen.

OUTLINE: This is a pilot study.

  • Mobilization and stem cell collection: Patients receive cyclophosphamide IV and filgrastim (G-CSF) subcutaneously (SC) or IV once daily for 7-14 days followed by leukapheresis to collect peripheral blood stem cells (PBSCs). Some patients may also undergo bone marrow (BM) harvest if sufficient PBSCs are not collected. Patients with a sufficient number of stem cells or BM (5 x 10^6 PBSC/kg or 3 x 10^8 BM cells/kg) proceed to autologous PBSC transplantation (PBSCT) or BM transplantation (BMT).
  • CD34-positive cell selection and mafosfamide purging: Collected PBSCs and/or BM are treated in the laboratory to isolate CD34-positive cells. A minimum of 1 x 10^6 nucleated CD34-positive BM cells/kg or 2 x 10^6 nucleated CD34-positive PBSCs/kg must be available after selection to proceed to mafosfamide-purging. The selected cells are then treated in vitro with mafosfamide to purge remaining leukemic cells. One third of the mafosfamide-purged cells are then cryopreserved for future use and 2/3 of the mafosfamide-purged cells proceed to ex vivo expansion.
  • Ex vivo expansion: The remaining CD34-positive mafosfamide-purged cells are treated in vitro with stem cell factor, G-CSF, and recombinant human thrombopoietin and incubated for 12-14 days.
  • Myeloablative therapy: Patients receive busulfan on days -9 to -6 and cyclophosphamide on days -5 to -2.
  • PBSCT or BMT: Patients undergo autologous PBSCT or BMT using CD34-positive mafosfamide-purged cryopreserved cells and ex vivo expanded CD34-positive mafosfamide-purged cells on day 0 followed by G-CSF SC or IV once daily until blood counts recover.

After completion of study treatment, patients are followed periodically for at least 5 years.

PROJECTED ACCRUAL: A total of 25 patients will be accrued for this study.

Conditions
Leukemia
Being tested
filgrastim, busulfan, cyclophosphamide, in vitro-treated bone marrow transplantation, in vitro-treated peripheral blood stem cell transplantation
Keywords
adult acute myeloblastic leukemia without maturation (M1), childhood acute myeloblastic leukemia without maturation (M1), adult acute myeloblastic leukemia with maturation (M2), childhood acute myeloblastic leukemia with maturation (M2), adult acute promyelocytic leukemia (M3), childhood acute promyelocytic leukemia (M3), adult acute myelomonocytic leukemia (M4), childhood acute myelomonocytic leukemia (M4), adult acute monoblastic leukemia (M5a), adult acute monocytic leukemia (M5b), childhood acute monoblastic leukemia (M5a), childhood acute monocytic leukemia (M5b), adult erythroleukemia (M6a), adult pure erythroid leukemia (M6b), childhood acute erythroleukemia (M6), adult acute megakaryoblastic leukemia (M7), childhood acute megakaryocytic leukemia (M7), adult acute lymphoblastic leukemia in remission, adult acute myeloid leukemia in remission, childhood acute lymphoblastic leukemia in remission
Medical subject headings
Leukemia, Leukemia, Myeloid, Acute, Leukemia, Promyelocytic, Acute, Leukemia, Myelomonocytic, Acute, Leukemia, Monocytic, Acute, Leukemia, Erythroblastic, Acute, Leukemia, Megakaryoblastic, Acute, Congenital Abnormalities

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • filgrastimBiological

  • busulfanDrug

  • cyclophosphamideDrug

  • in vitro-treated bone marrow transplantationProcedure or surgery

  • in vitro-treated peripheral blood stem cell transplantationProcedure or surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of patients infused with Mf-treated cells with successful expansion

    Number of patients with successful expansion of a CD34 selected, mafosfamide purged autograft.

    Measured: 2 weeks

Secondary outcomes (2)
  1. Duration of aplasia as determined by Number of Days to Absolute Neutrophil Count (ANC) recovery

    Measured: 1 month

  2. Event free survival

    Measured: 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Oct 2005 (estimated)
  2. Study startOct 2005
  3. Primary completionDec 2007
  4. Study completionJan 2012

Why it stopped: Expiration of study supply

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
7 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00245115
Sponsor's protocol ID
J0563 CDR0000453619
Other IDs
P01CA070970, P30CA006973
Status last verified
Aug 2018
First submitted
25 Oct 2005
Last updated
23 Aug 2018
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing filgrastim, busulfan and cyclophosphamide in people with Leukemia, run by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 0 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 23 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Expiration of study supply). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of patients infused with Mf-treated cells with successful expansion (time frame: 2 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Aug 2018.

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