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Allogeneic Stem Cell Transplant for CLL

Clofarabine, Gemcitabine, and Busulfan Followed by Allogeneic Stem Cell Transplantation for Chronic Lymphocytic Leukemia (CLL)

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01629511
Enrollment
15
Registered
2012-06-27
Start date
2012-11-21
Completion date
2018-04-25
Last updated
2020-02-24

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

Conditions

Allogeneic Hematopoietic Stem Cell Transplantation Recipient, Chronic Lymphocytic Leukemia, Prolymphocytic Leukemia, Richter Syndrome

Brief summary

This phase I/II trial studies the best dose and side effects of gemcitabine and how well it works with clofarabine and busulfan and donor stem cell transplant in treating participants with chronic lymphocytic leukemia. Drugs used in chemotherapy, such as gemcitabine, clofarabine, and busulfan, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving chemotherapy before a donor stem cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. The donated stem cells may also replace the patient's immune cells and help destroy any remaining cancer cells.

Detailed description

PRIMARY OBJECTIVES: I. To determine the maximum tolerated dose (MTD) of gemcitabine when administered with busulfan and clofarabine. II. To estimate the day 100 treatment-related mortality (TRM) for the preparative regimen busulfan, clofarabine, and gemcitabine followed by allogeneic hematopoietic cell transplantation (HCT) for patients with chronic lymphocytic leukemia (CLL). SECONDARY OBJECTIVES: I. To determine the rate of progression-free survival (PFS), graft versus host disease (GVHD), engraftment, and overall survival (OS) for this treatment regimen at one year post treatment completion. OUTLINE: This is a dose-escalation study of gemcitabine. Participants receive gemcitabine intravenously (IV) over 10-25 minutes on days -6 and -4, clofarabine IV over 1 hour and busulfan IV over 3 hours on days -6 to -3. Participants with matched unrelated donors also receive anti-thymocyte globulin IV over 4 hours on days -3 to -1. Starting day -2, participants receive tacrolimus orally (PO) daily for up to 6 months. Participants undergo hematopoietic allogeneic stem cell transplant on day 0, then receive methotrexate IV over 15 minutes on days 1, 3, 6 and 11, and filgrastim subcutaneously (SC) once daily (QD) beginning 1 week after transplant until blood cell levels return to normal. After completion of study treatment, participants are followed up at 3, 6 and 12 months, then every 6 months for 1 year.

Interventions

PROCEDUREAllogeneic Hematopoietic Stem Cell Transplantation

Undergo stem cell transplant

BIOLOGICALAnti-Thymocyte Globulin

Given IV

DRUGBusulfan

Given IV

DRUGClofarabine

Given IV

BIOLOGICALFilgrastim

Given SC

DRUGGemcitabine

Given IV

DRUGMethotrexate

Given IV

DRUGTacrolimus

Given PO

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Patients with chronic lymphocytic leukemia, prolymphocytic leukemia, or Richter's transformation who are eligible for allogeneic transplantation and are not eligible for protocols of higher priority * A 10/10 HLA matched (high resolution typing at A, B, C, DRB1, DQ1) sibling or unrelated donor * Left ventricular ejection fraction (EF) \> 40% * Forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC) and corrected diffusion capacity of the lung for carbon monoxide (DLCO) \> 40% * Serum creatinine \< 1.6 mg/dL * Serum bilirubin \< 2 X upper limit of normal * serum glutamate pyruvate transaminase (SGPT) \< 2X upper limit of normal * Voluntary signed, written Institutional Review Board (IRB)-approved informed consent * Men and women of reproductive potential must agree to follow accepted birth control methods for the duration of the study. Female subject is either post-menopausal or surgically sterilized or willing to use an acceptable method of birth control (i.e., a hormonal contraceptive, intra-uterine device, diaphragm with spermicide, condom with spermicide, or abstinence) for the duration of the study. Male subject agrees to use an acceptable method for contraception for the duration of the study

Exclusion criteria

* Patient with active central nervous system (CNS) disease * Pregnant (positive beta human chorionic gonadotropin \[HCG\] test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization) or currently breast-feeding. Pregnancy testing is not required for post-menopausal or surgically sterilized women * Known infection with human immunodeficiency virus (HIV), human T-lymphotropic virus (HTLV)-I, hepatitis B, or hepatitis C * Active uncontrolled bacterial, viral or fungal infections * Patient has received other investigational drugs within 1 week before enrollment

Design outcomes

Primary

MeasureTime frameDescription
100 Day Treatment Related Mortality (TRM)100 days post transplantNumber of deaths related to treatment by day 100 post allogeneic transplant
Maximum Tolerated Dose (MTD)Enrollment up to day 30 post transplantTo find the maximum tolerated dose (MTD) of Gemcitabine when administered with Busulfan & Clofarabine

Secondary

MeasureTime frameDescription
Overall SurvivalUp to 1 year post transplantWill be estimated by the method of Kaplan and Meier. Time-to-event distributions as function of patient baseline covariates will be evaluated using Bayesian time-to-event regression modeling.

Other

MeasureTime frameDescription
Progression-free Survival (PFS)Up to 1 year post transplantNumber of patients without any relapse post treatment completion
Time-to-engraftment30 days post transplantThe number of days until participants by dose level reach engraftment.
Acute and Chronic Graft Verse Host Disease (GvHD)Up to 1 year post transplantGvHD (Graft versus Host Disease) occurs when immune cells transplanted from a non-identical donor (graft) recognizes the transplant recipient (the host) as foreign, thereby initiating an immune reaction in the transplant recipient. Acute GvHD typically occurs around the time of engraftment and manifests in skin, GI system, and liver abnormalities. Chronic GvHD is defined by manifestations such as ocular, oral, lung, sclerosis skin, failure to thrive, fascia, cholestasis in liver, esophagus strictures.

Countries

United States

Participant flow

Recruitment details

Participants enrolled at MD Anderson clinic starting on November 21, 2012 on Phase I of the study. No participants were enrolled on Phase II.

Participants by arm

ArmCount
Gemcitabine Dose Level 1
Gemcitabine 100 mg/m2 IV preceded by loading dose of 75 mg/m2 for 2 days + Busulfan(adjusted Pharmacokinetic dosing) IV for 4 days + Clofarabine 30 mg/m2 IV for 4 days + Thymoglobulin 4mg/kg(Matched Unrelated Donor patients only) IV for 3 days + Stem Cell Transplant
4
Gemcitabine Dose Level 2
Gemcitabine 150 mg/m2 IV preceded by loading dose of 75 mg/m2 for 2 days + Busulfan(adjusted Pharmacokinetic dosing) IV for 4 days + Clofarabine 30 mg/m2 IV for 4 days + Thymoglobulin 4mg/kg(Matched Unrelated Donor patients only) IV for 3 days + Stem Cell Transplant
0
Gemcitabine Dose Level 3
Gemcitabine 200 mg/m2 IV preceded by loading dose of 75 mg/m2 for 2 days + Busulfan(adjusted Pharmacokinetic dosing) IV for 4 days + Clofarabine 30 mg/m2 IV for 4 days + Thymoglobulin 4mg/kg(Matched Unrelated Donor patients only) IV for 3 days + Stem Cell Transplant
8
Gemcitabine Dose Level 4
Gemcitabine 250 mg/m2 IV preceded by loading dose of 75 mg/m2 for 2 days + Busulfan(adjusted Pharmacokinetic dosing) IV for 4 days + Clofarabine 30 mg/m2 IV for 4 days + Thymoglobulin 4mg/kg(Matched Unrelated Donor patients only) IV for 3 days + Stem Cell Transplant
3
Total15

Baseline characteristics

CharacteristicGemcitabine Dose Level 1Gemcitabine Dose Level 2Gemcitabine Dose Level 3Gemcitabine Dose Level 4Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants0 Participants1 Participants0 Participants2 Participants
Age, Categorical
Between 18 and 65 years
3 Participants0 Participants7 Participants3 Participants13 Participants
Age, Continuous56 years57.5 years60 years59 years
Disease Category
Diseases : Chronic Lymphocytic Leukemia (CLL)
3 Participants0 Participants5 Participants1 Participants9 Participants
Disease Category
Diseases : Prolymphocytic Leukemia (PLL)
1 Participants0 Participants2 Participants2 Participants5 Participants
Disease Category
Diseases: Richter's
0 Participants0 Participants1 Participants0 Participants1 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1 Participants0 Participants2 Participants2 Participants5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants0 Participants6 Participants1 Participants10 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants0 Participants8 Participants3 Participants15 Participants
Region of Enrollment
United States
4 Participants0 Participants8 Participants3 Participants15 Participants
Sex: Female, Male
Female
3 Participants0 Participants2 Participants0 Participants5 Participants
Sex: Female, Male
Male
1 Participants0 Participants6 Participants3 Participants10 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
1 / 40 / 01 / 81 / 3
other
Total, other adverse events
4 / 40 / 08 / 83 / 3
serious
Total, serious adverse events
0 / 40 / 00 / 80 / 3

Outcome results

Primary

100 Day Treatment Related Mortality (TRM)

Number of deaths related to treatment by day 100 post allogeneic transplant

Time frame: 100 days post transplant

Population: No participants were treated at dose level 2.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Gemcitabine Dose Level 1100 Day Treatment Related Mortality (TRM)Graft versus Host Disease (GVHD)0 Participants
Gemcitabine Dose Level 1100 Day Treatment Related Mortality (TRM)Infection0 Participants
Gemcitabine Dose Level 2100 Day Treatment Related Mortality (TRM)Infection0 Participants
Gemcitabine Dose Level 2100 Day Treatment Related Mortality (TRM)Graft versus Host Disease (GVHD)0 Participants
Gemcitabine Dose Level 3100 Day Treatment Related Mortality (TRM)Graft versus Host Disease (GVHD)1 Participants
Gemcitabine Dose Level 3100 Day Treatment Related Mortality (TRM)Infection0 Participants
Gemcitabine Dose Level 4100 Day Treatment Related Mortality (TRM)Infection0 Participants
Gemcitabine Dose Level 4100 Day Treatment Related Mortality (TRM)Graft versus Host Disease (GVHD)0 Participants
Primary

Maximum Tolerated Dose (MTD)

To find the maximum tolerated dose (MTD) of Gemcitabine when administered with Busulfan & Clofarabine

Time frame: Enrollment up to day 30 post transplant

Population: MTD analysis was for Phase II. Data were not collected.

Secondary

Overall Survival

Will be estimated by the method of Kaplan and Meier. Time-to-event distributions as function of patient baseline covariates will be evaluated using Bayesian time-to-event regression modeling.

Time frame: Up to 1 year post transplant

Population: All participants were registered on Phase I.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Gemcitabine Dose Level 1Overall Survival3 Participants
Gemcitabine Dose Level 2Overall Survival0 Participants
Gemcitabine Dose Level 3Overall Survival4 Participants
Gemcitabine Dose Level 4Overall Survival2 Participants
Other Pre-specified

Acute and Chronic Graft Verse Host Disease (GvHD)

GvHD (Graft versus Host Disease) occurs when immune cells transplanted from a non-identical donor (graft) recognizes the transplant recipient (the host) as foreign, thereby initiating an immune reaction in the transplant recipient. Acute GvHD typically occurs around the time of engraftment and manifests in skin, GI system, and liver abnormalities. Chronic GvHD is defined by manifestations such as ocular, oral, lung, sclerosis skin, failure to thrive, fascia, cholestasis in liver, esophagus strictures.

Time frame: Up to 1 year post transplant

Population: Analysis was for Phase II. No analysis was done due to low accrual on Phase I.

ArmMeasureGroupValue
UnknownAcute and Chronic Graft Verse Host Disease (GvHD)Chronic GvHD (cGvHD)
UnknownAcute and Chronic Graft Verse Host Disease (GvHD)Acute GvHD(aGvHD)
Other Pre-specified

Progression-free Survival (PFS)

Number of patients without any relapse post treatment completion

Time frame: Up to 1 year post transplant

Population: Analysis was for Phase II. No analysis was done due to low accrual on Phase I.

Other Pre-specified

Time-to-engraftment

The number of days until participants by dose level reach engraftment.

Time frame: 30 days post transplant

Population: No participants were treated at dose level 2.

ArmMeasureGroupValue (NUMBER)
Gemcitabine Dose Level 1Time-to-engraftmentDay 112 participants
Gemcitabine Dose Level 1Time-to-engraftment<10 days - Graft Failure0 participants
Gemcitabine Dose Level 1Time-to-engraftmentDay 150 participants
Gemcitabine Dose Level 1Time-to-engraftmentDay 121 participants
Gemcitabine Dose Level 1Time-to-engraftmentDay 101 participants
Gemcitabine Dose Level 1Time-to-engraftmentDay 130 participants
Gemcitabine Dose Level 1Time-to-engraftmentDay 170 participants
Gemcitabine Dose Level 3Time-to-engraftmentDay 120 participants
Gemcitabine Dose Level 3Time-to-engraftmentDay 131 participants
Gemcitabine Dose Level 3Time-to-engraftmentDay 102 participants
Gemcitabine Dose Level 3Time-to-engraftmentDay 114 participants
Gemcitabine Dose Level 3Time-to-engraftmentDay 150 participants
Gemcitabine Dose Level 3Time-to-engraftmentDay 170 participants
Gemcitabine Dose Level 3Time-to-engraftment<10 days - Graft Failure1 participants
Gemcitabine Dose Level 4Time-to-engraftmentDay 151 participants
Gemcitabine Dose Level 4Time-to-engraftmentDay 100 participants
Gemcitabine Dose Level 4Time-to-engraftment<10 days - Graft Failure0 participants
Gemcitabine Dose Level 4Time-to-engraftmentDay 171 participants
Gemcitabine Dose Level 4Time-to-engraftmentDay 130 participants
Gemcitabine Dose Level 4Time-to-engraftmentDay 110 participants
Gemcitabine Dose Level 4Time-to-engraftmentDay 121 participants

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