This is a multi-center, single arm Phase II study of hematopoietic cell transplantation (HCT) using human leukocyte antigen (HLA)-mismatched unrelated bone marrow transplantation donors and post-transplantation cyclophosphamide (PTCy), sirolimus and mycophenolate mofetil (MMF) for graft versus host disease (GVHD) prophylaxis in patients with hematologic malignancies.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
80
* Fludarabine 30 mg/m2/day (adjusted for renal function) is administered over a 30-60 minute IV infusion on Days -6 through -2 (maximum cumulative dose, 150 mg/m2). * The body surface area (BSA) for fludarabine dosing is based on adjusted ideal body weight (IBW) (Appendix K). * creatinine clearance may change during the days fludarabine is given. Adjustment in fludarabine dose due to creatinine changes during conditioning is permitted.
* Cy 14.5 mg/kg/day is administered as a 1-2 hour IV infusion on Days -6 and -5 after hydration. * Use of Mesna and dosing will be done according to institutional standards. A recommended approach is as follows: Mesna IV dose of ≥ 80% of the total daily dose of Cy and given in divided doses 30 minutes before and at 3, 6, and 8-9 hours after completion of Cy. * Hydration prior to Cy may be given according to institutional guideline. * Cy and mesna are dosed according to adjusted IBW (Appendix K), unless the subject weighs less than IBW, in which case these drugs will be dosed according to actual weight.
* 200 cGy TBI is administered in a single fraction on Day -1. * Radiation sources, dose rates, and shielding follow institutional practice.
* On Day 0, the harvested bone marrow is infused. * Donor bone marrow will be harvested with a target yield of 4 x 108 nucleated cells/kg recipient weight. * The lowest acceptable nucleated cells yield is 1.5 x 108 cells/kg recipient weight.
* Busulfan ≥ 9mg/kg total dose (IV or PO) on Days -6, -5, -4, -3 (PK monitoring required to achieve a daily area under the curve (AUC) target of 4800-5300 μM\*min (Perkins et al., 2012)) * Busulfan dosing is based on adjusted IBW (Appendix K)
* Cy 50mg/kg/day is administered as a 1-2 hour IV infusion on Days -2 and -1 after hydration. * Use of Mesna and dosing will be done according to institutional standards. A recommended approach is as follows: Mesna IV dose of ≥ 80% of the total daily dose of Cy and given in divided doses 30 minutes before and at 3, 6, and 8-9 hours after completion of Cy. * Hydration prior to Cy may be given according to institutional guideline. * Cy and mesna are dosed according to adjusted IBW (Appendix K), unless the subject weighs less than IBW, in which case these drugs will be dosed according to actual weight.
* Cy 50mg/kg/day is administered as a 1-2 hour IV infusion on Days -5 and -4 after hydration. * Use of Mesna and dosing will be done according to institutional standards. A recommended approach is as follows: Mesna IV dose of ≥ 80% of the total daily dose of Cy and given in divided doses 30 minutes before and at 3, 6, and 8-9 hours after completion of Cy. * Hydration prior to Cy may be given according to institutional guideline. * Cy and mesna are dosed according to adjusted IBW (Appendix K), unless the subject weighs less than IBW, in which case these drugs will be dosed according to actual weight.
* 200cGy TBI is administered in twice daily on Days -3, -2, and -1. * Radiation sources, dose rates, and shielding follow institutional practice.
* Cy 50mg/kg IV, over 1-2 hours (depending on volume), is given on Day+3 (ideally between 60 and 72 hours after bone marrow infusion) and on Day+4 (approximately 24 hours after Day+3 Cy). * Hydration with Cy, management of volume status, and monitoring for hemorrhagic cystitis will follow institutional standards. * Mesna is required. Mesna IV dose must be ≥ 80% of the total daily dose of Cy and given in divided doses 30 minutes before and at 3, 6, and 8-9 hours after completion of Cy. * Cy is dosed according to IBW, unless the subject weighs less than IBW, in which case these drugs will be dosed according to actual body weight.
* Sirolimus dosing is based on adjusted IBW (Appendix K). * Sirolimus prophylaxis is discontinued after the last dose on Day+180, or may be continued if there is GVHD. For subjects ≥ 18 years old: * A one-time sirolimus loading dose, 6 mg PO, is given on Day+5, at least 24 hours after Cy completion. * Sirolimus is then continued at a maintenance dose (starting dose 2 mg PO QD), with dose adjustments to maintain a trough of 5 - 15 ng/mL as measured by high performance liquid chromatography (HPLC) or immunoassay. For subjects \< 18 years old: * A one-time sirolimus loading dose, 3 mg/m2 PO with the dose not to exceed 6 mg, is given on Day+5, at least 24 hours after Cy completion. * Sirolimus is then continued at a maintenance dose (starting dose 1 mg/m2 PO QD, maximum 2 mg PO QD), with dose adjustments to maintain a trough of 5 - 15 ng/mL as measured by HPLC or immunoassay.
MMF begins on Day+5, at least 24 hours after completion of PTCy. MMF dose is 15 mg/kg PO TID (adjusted IBW (Appendix K)) with total daily dose not to exceed 3 grams (i.e. maximum 1 g PO TID). An equivalent IV dose (1:1 conversion) may instead be given. MMF prophylaxis is discontinued after the last dose on Day+35, or may be continued if there is GVHD.
Granulocyte-colony stimulating factor (G-CSF): filgrastim or a biosimilar begins on Day+5 at a dose of 5 mcg/kg/day (actual body weight) IV or subcutaneously (SC) (rounding to the nearest vial dose is allowed), until the absolute neutrophil count (ANC) is ≥ 1,000/mm3 over the course of 3 consecutive days. Additional G-CSF may be administered as warranted.
Use of Mesna and dosing will be done according to institutional standards. A recommended approach is as follows: Mesna IV dose of ≥ 80% of the total daily dose of Cy and given in divided doses 30 minutes before and at 3, 6, and 8-9 hours after completion of Cy. Mesna is dosed according to adjusted IBW (Appendix K), unless the subject weighs less than IBW, in which case Mesna will be dosed according to actual weight.
Use of Mesna and dosing will be done according to institutional standards. A recommended approach is as follows: Mesna IV dose of ≥ 80% of the total daily dose of Cy and given in divided doses 30 minutes before and at 3, 6, and 8-9 hours after completion of Cy. Mesna is dosed according to adjusted IBW (Appendix K), unless the subject weighs less than IBW, in which case Mesna will be dosed according to actual weight.
Use of Mesna and dosing will be done according to institutional standards. A recommended approach is as follows: Mesna IV dose of ≥ 80% of the total daily dose of Cy and given in divided doses 30 minutes before and at 3, 6, and 8-9 hours after completion of Cy. Mesna is dosed according to adjusted IBW (Appendix K), unless the subject weighs less than IBW, in which case Mesna will be dosed according to actual weight.
Mesna is required. Mesna IV dose must be ≥ 80% of the total daily dose of Cy and given in divided doses 30 minutes before and at 3, 6, and 8-9 hours after completion of Cy on Day+3 and Day+4. Mesna is dosed according to IBW, unless the subject weighs less than IBW, in which case Mesna will be dosed according to actual body weight.
Shands HealthCare & University of Florida
Gainesville, Florida, United States
University of Miami
Miami, Florida, United States
H. Lee Moffitt Cancer Center and Research Institute
Tampa, Florida, United States
University of Maryland Greenebaum Cancer Center
Baltimore, Maryland, United States
The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Baltimore, Maryland, United States
Karmanos Cancer Institute
Detroit, Michigan, United States
Memorial Sloan Kettering Cancer Center - Adults
New York, New York, United States
University of North Carolina Hospitals
Chapel Hill, North Carolina, United States
Ohio State Medical Center, James Cancer Center
Columbus, Ohio, United States
Virginia Commonwealth University Massey Cancer Center Bone Marrow Transplant Program
Richmond, Virginia, United States
...and 1 more locations
Overall Survival
Death from any cause. The time to this event is the time from HCT to death, loss to follow-up, or end of study (whichever comes first). The overall survival probability and 90% CI will be calculated by the Kaplan Meier product limit estimator.
Time frame: 365 days post transplant
Progression-free Survival
Time from HCT until the documentation of disease progression / relapse or death due to any cause, whichever occurs first. Progression-free survival probability and 90% CI will be calculated by the Kaplan Meier product limit estimator.
Time frame: 180 days and 365 days post-transplant
Transplant-related Mortality
Death without evidence of disease progression or recurrence. A cumulative incidence will be computed along with a 90% CI.
Time frame: 100 days, 180 days, and 365 days post-transplant
Cumulative Incidence of Neutrophil Recovery
Achieving a donor derived ANC ≥ 500/mm3 for 3 consecutive laboratory values on different days. A cumulative incidence will be computed along with a 90% CI.
Time frame: 100 days and 365 days post transplant
Cumulative Incidence of Platelet Recovery
Achieving a platelet count ≥ 20,000/μL for 3 consecutive laboratory values on different days (with no platelet transfusions in the preceding seven days). A cumulative incidence will be computed along with a 90% CI.
Time frame: 100 days and 365 days post transplant
Cumulative Incidence of Acute GVHD
Any skin, gastrointestinal or liver abnormalities fulfilling the BMT CTN Manual of Operations (2013) criteria of grades II-IV acute GVHD. A cumulative incidence will be computed along with a 90% CI. Any skin, gastrointestinal or liver abnormalities fulfilling the BMT CTN Manual of Operations (2013) criteria of grades III-IV acute GVHD. A cumulative incidence will be computed along with a 90% CI.
Time frame: 100 days post-transplant
Grades II-IV Acute GVHD
Any skin, gastrointestinal or liver abnormalities fulfilling the BMT CTN Manual of Operations (2013) criteria of grades II-IV acute GVHD. A cumulative incidence will be computed along with a 90% CI.
Time frame: 100 days
Grades III-IV Acute GVHD
Any skin, gastrointestinal or liver abnormalities fulfilling the BMT CTN Manual of Operations (2013) criteria of grades III-IV acute GVHD. A cumulative incidence will be computed along with a 90% CI.
Time frame: 100 days
Cumulative Incidence of Chronic GVHD
Per National Institutes of Health (NIH) Consensus Criteria and includes organ involvement and severity, and overall global composite score (mild/moderate/severe). A cumulative incidence will be computed along with a 90% CI. Death from any cause. The time to this event is the time from HCT to death, loss to follow-up, or end of study (whichever comes first). The overall survival probability and 90% CI will be calculated by the Kaplan Meier product limit estimator.
Time frame: 180 days and 365 days post-transplant
Cumulative Incidences of Viral Reactivations and Infections: Grade 2-3 CMV Reactivation or Infection
Grade 2: Clinically active CMV infection (e.g. symptoms, cytopenias) or CMV Viremia not decreasing by at least 2/3 of the baseline value after 2 weeks of therapy; Grade 3: CMV end-organ involvement (pneumonitis, enteritis, retinitis). A cumulative incidence will be computed along with a 90% CI. Death from any cause. The time to this event is the time from HCT to death, loss to follow-up, or end of study (whichever comes first). The overall survival probability and 90% CI will be calculated by the Kaplan Meier product limit estimator.
Time frame: 100 days, 180 days, and 365 days
Cumulative Incidences of Viral Reactivations and Infections: Grade 3 CMV Infection
CMV end-organ involvement (pneumonitis, enteritis, retinitis) ). A cumulative incidence will be computed along with a 90% CI. Death from any cause. The time to this event is the time from HCT to death, loss to follow-up, or end of study (whichever comes first). The overall survival probability and 90% CI will be calculated by the Kaplan Meier product limit estimator.
Time frame: 100 days, 180 days, and 365 days
Cumulative Incidences of Viral Reactivations and Infections: Grade 2-3 EBV Infection
Grade 2: EBV reactivation requiring institution of therapy with rituximab; Grade 3: EBV post-transplant lymphoproliferative disorder). A cumulative incidence will be computed along with a 90% CI. Death from any cause. The time to this event is the time from HCT to death, loss to follow-up, or end of study (whichever comes first). The overall survival probability and 90% CI will be calculated by the Kaplan Meier product limit estimator.
Time frame: 100 days, 180 days, and 365 days
Cumulative Incidences of Viral Reactivations and Infections: Grade 2 BK Virus Infection
BK viremia or viruria with clinical consequence requiring prolonged therapy and/or surgical intervention). A cumulative incidence will be computed along with a 90% CI.
Time frame: 100 days, 180 days, 365 days
Cumulative Incidences of Viral Reactivations and Infections: Grade 2-3 Adenovirus Infection
Grade 2: Adenoviral URI, viremia, or symptomatic viruria requiring treatment; Grade 3: ADV with end-organ involvement (except conjunctivitis and upper respiratory tract) ). A cumulative incidence will be computed along with a 90% CI. Death from any cause. The time to this event is the time from HCT to death, loss to follow-up, or end of study (whichever comes first). The overall survival probability and 90% CI will be calculated by the Kaplan Meier product limit estimator.
Time frame: 100 days, 180 days, and 365 days
Cumulative Incidences of Viral Reactivations and Infections: Grade 2 HHV-6 Infection
Clinically active HHV-6 infection (e.g. symptoms, cytopenias) or HHV-6 viremia without viral load decline 0.5 log after 2 weeks of therapy). A cumulative incidence will be computed along with a 90% CI.
Time frame: 100 days, 180 days, 365 days
Cumulative Incidence of Relapse/Progression
Defined by either morphological, cytogenetic/molecular or radiological evidence of disease consistent with pre-HCT features. A cumulative incidence will be computed along with a 90% CI. Death from any cause. The time to this event is the time from HCT to death, loss to follow-up, or end of study (whichever comes first). The overall survival probability and 90% CI will be calculated by the Kaplan Meier product limit estimator.
Time frame: 180 days and 365 days post-transplant
Cumulative Incidences of Thrombotic Microangiopathy (TMA) and Hepatic Veno-occlusive Disease (VOD)/Sinusoidal Obstruction Syndrome (SOS)
TMA is defined as (Ho et al., 2005): 1. RBC fragmentation and \>2 schistocytes per high-power field on peripheral smear 2. Concurrent increased serum LDH above institutional baseline 3. Concurrent renal and/or neurologic dysfunction without other explanation 4. Negative direct and indirect Coombs test results A cumulative incidence will be computed along with a 90% CI. VOD/SOS is defined as: In the first 20 days after HCT, the presence of ≥2 of the following: 1. Bilirubin \>2 mg/Dl, 2. Hepatomegaly or pain in right upper quadrant, 3. Weight gain (\>2% basal weight). A cumulative incidence will be computed along with a 90% CI.
Time frame: 365 days post transplant
Cumulative Incidence of Primary Graft Failure
Lack of donor-derived neutrophil engraftment. The frequency of subjects experiencing primary graft failure by 56 days will be described.
Time frame: 56 days post-transplant
Donor Chimerism
Peripheral blood chimerism (% of donor chimerism) in whole blood (unsorted). The degree of donor chimerism will be summarized using descriptive statistics.
Time frame: 28 days, 56 days, 100 days, 180 days, and 365 days post-transplant
Peripheral Blood Chimerism
The frequency of subjects with Peripheral blood (unsorted) chimerism\>95% at 56 days will be described.
Time frame: 56 days post-transplant
Proportion of Subjects Proceeding to Transplant
The proportion of subjects proceeding to HCT after informed consent.
Time frame: Pre-HCT
Time From Search to Donor Identification
Time from search to donor identification Time from preliminary search to formal donor activation.
Time frame: Pre-HCT
Donor Selection Characteristics: HLA Match
Number of matched donor and recipient HLA allele pairs. A matched donor would have 8/8 HLA allele pairs matching; mismatched donors listed below have one to four mismatched HLA allele pairs at HLA-A, -B, -C, or -DRB1.
Time frame: Pre-HCT
Donor Selection Characteristics: Donor Age
Donor age
Time frame: Pre-HCT
Donor Selection Characteristics: Donor Age, Categorical
Donor age, categorical
Time frame: Pre-HCT
Donor Selection Characteristics: Donor Weight
Donor weight
Time frame: Pre-HCT
Donor Selection Characteristics: Donor Sex
Donor sex
Time frame: Pre-HCT
Donor Selection Characteristics: Donor and Recipient Sex
Donor-recipient sex match
Time frame: Pre-HCT
Donor Selection Characteristics: Donor and Recipient CMV Serostatus
Donor-recipient Cytomegalovirus (CMV) serostatus match
Time frame: Pre-HCT
Donor Selection Characteristics: Donor and Recipient ABO Blood Match
Donor-recipient ABO group match
Time frame: Pre-HCT
Donor Clonal Hematopoiesis
The proportion of subjects developing donor clonal hematopoiesis
Time frame: 100 days and 365 days post-transplant
Subgroup Analysis of HIV-positive Subjects
If CCR5delta32 homozygous donors are successfully found and used for one or more HIV-positive subjects, a descriptive analysis of baseline characteristics and outcomes for those HIV-positive subjects will be conducted, including the viral load detected over time obtained from collected samples.
Time frame: 365 days post transplant
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