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Clofarabine and Non-Myeloablative Allogeneic Hematopoietic Transplantation

Clofarabine and Non-Myeloablative Allogeneic Hematopoietic Transplantation

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00626626
Enrollment
8
Registered
2008-02-29
Start date
2007-05-31
Completion date
2010-01-31
Last updated
2018-04-25

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

Conditions

Chronic Myelogenous Leukemia, Hodgkin's Lymphoma, Leukemia, Lymphoma, Multiple Myeloma, Myelodysplastic Syndrome

Keywords

leukemia, myelodysplastic syndrome, chronic myelogenous leukemia, lymphoma, mantle cell lymphoma

Brief summary

Allogeneic hematopoietic transplant is curative for many patients with hematological neoplasms but conditions to provide optimal engraftment and anti-tumor efficacy with minimal toxicity are still under way. Clofarabine is a newly licensed agent with dramatic anti-leukemic activity. Its incorporation into a regimen for pre-transplant conditioning of acute leukemia and lymphoma patients is logical, exploiting both the anti-tumor activities it is recognized to have and the immunosuppressive activity seen with drugs in its class.

Detailed description

Non-myeloablative conditioning allows curative allogeneic hematopoietic transplantation for patients unable to tolerate more toxic conventional conditioning regiments. These regiments continue to be refined and evolve. No standard regimen is yet agreed upon. The incorporation of the newly licenses agent Clofarabine into a non-myeloablative regimen is logical given its recognized anti-leukemic activity. This study will assess the safety and efficacy of Cyclophosphamide and Clofarabine in promoting hematopoietic engraftment after allogeneic transplant of blood stem cells. Patients eligibility will include those with advanced hematological neoplasms who might benefit from allogeneic blood cell transplant. Patients must have adequate organ function and suitable related or unrelated donors for transplant. In Phase I of the study 9-12 patients will be treated in order to establish Cyclophosphamide and Clofarabine dose, and to confirm reasonable safety and engraftment efficacy. Phase II will treat at total of 20 patients at the selected dose level of Clofarabine and Cyclophosphamide. Results will be compared to extensive Penn State Milton S. Hershey Medical Center experience using Fludarabine and Cyclophosphamide in a similar patient population. Supportive care, including graft versus host disease prophylaxis will be similar to that recently used at Hershey Medical Center. Primary endpoints will include survival and engraftment as compared to historical results at Hershey Medical Center. Disease specific outcomes for frequent diagnoses such as acute leukemia and non-hodgkin's lymphoma will be assessed as secondary endpoints.

Interventions

DRUGClofar, Cyclophos, Alemtuzumab

Hydrocortisone 100 mg IV 30 minutes prior to each dose of Clofarabine. Ondansetron 16 mg PO or IV or another comparable antiemetic should be given prior to each dose of Clofarabine. An additional similar dose should be given prior to Cyclophosphamide dose. Clofarabine 30 mg/M2 -8 through - 4 (5 doses) infusion. Alemtuzumab on day -8 only and after Clofarabine. Cyclophosphamide 500 mg/m2 Days -8 and -7 (2 doses) given over 1 hour beginning 4 hours after the beginning of Clofarabine infusion.

DRUGClofar, Cyclophos,Alemtuzumab(Ph II)

Hydrocortisone 100 mg IV 30 minutes prior to each dose of Clofarabine. Ondansetron 16 mg PO or IV or another comparable antiemetic should be given prior to each dose of Clofarabine. An additional similar dose should be given prior to Cyclophosphamide dose. Clofarabine 30 mg/M2 -8 through - 4 (5 doses) infusion. Alemtuzumab on day -8 only and after Clofarabine. Cyclophosphamide 1000 mg/m2 Days -8 and -7 (2 doses) given over 1 hour beginning 4 hours after the beginning of Clofarabine infusion (patients 4-9)

Sponsors

Milton S. Hershey Medical Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Phase I * Acute leukemia - secondary or beyond first remission or in CR with poor risk cytogenetics, myelodysplastic syndrome IPPS Int-2 or high risk, chronic myelogenous leukemia in accelerated or blast crisis and imatinib refractory or lymphoma having failed second line therapy or relapsed mantle cell lymphoma. Phase II * Acute leukemia secondary or at high risk for relapse, myelodysplastic syndrome IPPS Int-2 or high risk or having failed other therapy, chronic myelogenous leukemia, lymphoma having failed first line therapy or at high risk, relapsed Hodgkin's, CCL progressed beyond initial therapy, multiple myeloma beyond initial response or with high risk features. * Must have an HLA matched or 5/6 matched related donor at at least a 5/6 matched unrelated donor available. * Have adequate renal and hepatic functions * Capable of understanding the investigational nature, potential risk and benefits of the study and able to provide valid informed consent. * Female patients of childbearing potential must have a negative serum pregnancy test within 2 weeks prior to enrollment. * Male and female patients of childbearing potential must use an effective contraceptive method during the study and for a minimum of 6 months after study treatment.

Exclusion criteria

* Current concomitant chemotherapy, radiation therapy or immunotherapy other than as specified in the protocol. * Use of investigational agents within 30 days and no cytotoxic anticancer agents within 2 weeks before study entry with the exception of hydroxyurea. The patient must have recovered from all non-hematological acute toxicities from any previous therapy. * Other severe concurrent disease, or have a history of serious organ dysfunction or disease involving the heart, kidney, liver or other organ system that may place the patient at undue risk to undergo treatment. * Patients with systemic fungal, bacterial, viral, or other infection not controlled. * Pregnant or lactating patients. * Any significant concurrent disease, illness or psychiatric disorder that would compromise patient safety or compliance, interfere with consent, study participation, follow-up or interpretation of study results. * Age \> 70 (for Phase 1) or 75 (for Phase 2)

Design outcomes

Primary

MeasureTime frameDescription
Engraftment of Allogeneic Blood Cells.two yearsEstablish the safety of Clofarabine and cyclophosphamide preceding allogeneic hematopoietic engraftment. Assess the efficacy of Clofarabine and cyclophosphamide as conditioning for promoting allogeneic hematopoietic engraftment. Adequacy of engraftment will be assessed via assessment of chimerism (percent donor engraftment). Less than 20% engraftment by day 30 is then failure of engraftment. Safety is defined per common toxicity criteria - Non-Hematological and non renal toxicities of ≥grade 3 or ≥grade 4 up to day 30 are scored as toxicity.

Secondary

MeasureTime frameDescription
Disease-Free SurvivalTwo yearsObserve disease free survivals in acute leukemia and lymphoma patients receiving allogeneic hematopoietic transplant after Clofarabine and cyclophosphamide conditioning.
Overall Survival2 yearsObserve overall survival in leukemia and lymphoma patients receiving transplant after clofarabine and cyclophosphamide conditioning.

Countries

United States

Participant flow

Participants by arm

ArmCount
Dose Level1
Phase 1: 1-3 patients will be treated in order to establish Cyclophosphamide and Clofarabine dose and to confirm reasonable safety and engraftment efficacy. Dose Level I: Hydrocortisone 100 mg IV 30 minutes prior to each dose of Clofarabine. Ondansetron 16 mg PO or IV or another comparable antiemetic should be given prior to each dose of Clofarabine. An additional similar dose should be given prior to Cyclophosphamide dose. Clofarabine 30 mg/M2 -8 through - 4 (5 doses) infusion. Alemtuzumab on day -8 only and after Clofarabine. Cyclophosphamide 500 mg/m2 Days -8 and -7 (2 doses) given over 1 hour beginning 4 hours after the beginning of Clofarabine infusion.
5
Dose Level 2
Phase II patients 4-9 will treat at the selected dose level of Clofarabine and Cyclophosphamide. Dose Level 2: Hydrocortisone 100 mg IV 30 minutes prior to each dose of Clofarabine. Ondansetron 16 mg PO or IV or another comparable antiemetic should be given prior to each dose of Clofarabine. An additional similar dose should be given prior to Cyclophosphamide dose. Clofarabine 30 mg/M2 -8 through - 4 (5 doses) infusion. Alemtuzumab on day -8 only and after Clofarabine. Cyclophosphamide 1000 mg/m2 Days -8 and -7 (2 doses) given over 1 hour beginning 4 hours after the beginning of Clofarabine infusion (patients 4-9)
3
Total8

Baseline characteristics

CharacteristicDose Level1Dose Level 2Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants0 Participants2 Participants
Age, Categorical
Between 18 and 65 years
3 Participants3 Participants6 Participants
Region of Enrollment
United States
5 Participants3 Participants8 Participants
Sex: Female, Male
Female
2 Participants2 Participants4 Participants
Sex: Female, Male
Male
3 Participants1 Participants4 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
5 / 53 / 3
serious
Total, serious adverse events
4 / 51 / 3

Outcome results

Primary

Engraftment of Allogeneic Blood Cells.

Establish the safety of Clofarabine and cyclophosphamide preceding allogeneic hematopoietic engraftment. Assess the efficacy of Clofarabine and cyclophosphamide as conditioning for promoting allogeneic hematopoietic engraftment. Adequacy of engraftment will be assessed via assessment of chimerism (percent donor engraftment). Less than 20% engraftment by day 30 is then failure of engraftment. Safety is defined per common toxicity criteria - Non-Hematological and non renal toxicities of ≥grade 3 or ≥grade 4 up to day 30 are scored as toxicity.

Time frame: two years

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase I )Engraftment of Allogeneic Blood Cells.Adequate Engraftment2 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase I )Engraftment of Allogeneic Blood Cells.Safety5 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase II)Engraftment of Allogeneic Blood Cells.Adequate Engraftment1 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase II)Engraftment of Allogeneic Blood Cells.Safety3 Participants
Secondary

Disease-Free Survival

Observe disease free survivals in acute leukemia and lymphoma patients receiving allogeneic hematopoietic transplant after Clofarabine and cyclophosphamide conditioning.

Time frame: Two years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase I )Disease-Free SurvivalDisease Free0 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase I )Disease-Free SurvivalRelapsed5 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase II)Disease-Free SurvivalDisease Free1 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase II)Disease-Free SurvivalRelapsed2 Participants
Secondary

Overall Survival

Observe overall survival in leukemia and lymphoma patients receiving transplant after clofarabine and cyclophosphamide conditioning.

Time frame: 2 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase I )Overall SurvivalSurvival (2 years)1 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase I )Overall SurvivalLost to Followup1 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase I )Overall SurvivalDied3 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase II)Overall SurvivalDied2 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase II)Overall SurvivalSurvival (2 years)1 Participants
Clofarabine, Cyclophosphamide & Alemtuzumab (Phase II)Overall SurvivalLost to Followup0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026