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Itacitinib, Tacrolimus, and Sirolimus for the Prevention of GVHD in Patients With Acute Leukemia, Myelodysplastic Syndrome, or Myelofibrosis Undergoing Reduced Intensity Conditioning Donor Stem Cell Transplantation

Phase IIa Study of Addition of Itacitinib With Tacrolimus/Sirolimus Regimen for GVHD Prophylaxis in Fludarabine and Melphalan Non-Myeloablative Conditioning Hematopoietic Cell Transplantation for Acute Leukemias, MDS or MF

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04339101
Enrollment
59
Registered
2020-04-09
Start date
2020-11-11
Completion date
2025-10-09
Last updated
2026-03-30

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

Conditions

Acute Leukemia, Hematologic and Lymphocytic Disorder, Myelodysplastic Syndrome, Primary Myelofibrosis, Secondary Myelofibrosis

Brief summary

This phase IIa trial studies the side effects of itacitinib when given together with standard treatment (tacrolimus and sirolimus), and to see how well it works in preventing graft-versus-host-disease (GVHD) in patients with acute leukemia, myelodysplastic syndrome or myelofibrosis who are undergoing reduced intensity conditioning donor stem cell transplantation. GVHD is a common complication after donor stem cell transplantation, resulting from donor immune cells recognizing recipients' cells and attacking them. Adding itacitinib to tacrolimus and sirolimus may reduce the risk GVHD and ultimately improve overall outcome and survival after donor stem cell transplantation.

Detailed description

PRIMARY OBJECTIVE: I. Following a patient safety lead-in, estimate graft-versus-host disease free relapse free (GRFS) survival at 1- year post allogeneic stem cell transplantation (alloHCT). SECONDARY OBJECTIVES: I. Estimate the cumulative incidence of acute graft-versus-host disease (aGVHD) and non-relapse mortality (NRM) at 100-days post-transplant. II. Estimate the cumulative incidence of chronic GVHD at 1- and 2-years post-transplant. III. Estimate the probabilities of overall and progression-free survival (OS/PFS) at 1- and 2-years post-transplant. IV. Estimate rate of infection and development of second malignancies including lymphoproliferative disorders at 1- and 2-years post-transplant. V. Assess patients' quality of life (QOL) at day 100 and 1 year post alloHCT. EXPLORATORY OBJECTIVES: I. Characterize and evaluate hematologic recovery, donor cell engraftment and immune reconstitution by cell count and flow cytometry of lymphocyte subsets. II. Characterize changes in aGVHD biomarkers (Reg-3alpha, TNF-RI, and ST2) and a composite biomarker panel (IL2Ralpha, TNF-R1, IL-8, and hepatocyte growth factor), JAK-regulated pro-inflammatory cytokines (i.e., IL-6, TNFalpha, CRP, Beta2 Microglobulin, and IFNgamma) and STAT3 phosphorylation (downstream of JAK signaling) over time and by aGVHD status/grade. OUTLINE: REDUCED INTENSITY CONDITIONING (RIC): Patients receive fludarabine via infusion on days -9 to -5 and melphalan on day -4 in the absence of disease progression or unacceptable toxicity. ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANT (HSCT): Patients undergo HSCT on day 0. GVHD PROPHYLAXIS: Patients receive itacitinib orally (PO) once daily (QD) beginning on day -3 and continuing until day 100 in the absence of disease progression or unacceptable toxicity. Patients also receive tacrolimus intravenously (IV) or PO and sirolimus PO beginning day -3 and continuing until day 100 with a taper in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 30 days, then periodically for up to 2 years post- transplantation.

Interventions

DRUGFludarabine

Given via infusion

Given PO

DRUGMelphalan

Given IV

OTHERQuality-of-Life Assessment

Ancillary studies

OTHERQuestionnaire Administration

Ancillary studies

DRUGSirolimus

Given PO

DRUGTacrolimus

Given IV or PO

Sponsors

City of Hope Medical Center
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Documented informed consent of the participant and/or legally authorized representative * Assent, when appropriate, will be obtained per institutional guidelines * Agreement to allow the use of archival tissue from diagnostic tumor biopsies * If unavailable, exceptions may be granted with study principal investigator (PI) approval * Performance status: Karnofsky \>= 70% * Patients with neoplastic hematologic disorders with indication of allogeneic transplant according to the standard guidelines as follows: * Acute leukemia (AL) in first complete response (CR1) or subsequent complete response (CR) or active disease with bone marrow (BM) blast of \< 5% * Myelodysplastic syndrome (MDS) with intermediate-2 or high risk per International Prognostic Scoring System (IPSS) or * Myelofibrosis; primary or secondary if intermediate-2 or high risk per Dynamic International Prognostic Scoring System (DIPPS) * All candidates for this study must have a matched related donor (MRD) who is willing to donate BM or peripheral blood stem cells or an 8/8 allele matched unrelated donor (MUD) * Total bilirubin =\< 1.5 X upper limit of normal (ULN) (unless has Gilbert's disease) (performed within 28 days prior to day 1 of protocol therapy unless otherwise stated. In case of active disease, evaluation should be done within 15 days) * Aspartate aminotransferase (AST) =\< 2.5 x ULN (performed within 28 days prior to day 1 of protocol therapy unless otherwise stated. In case of active disease, evaluation should be done within 15 days) * Alanine aminotransferase (ALT) =\< 2.5 x ULN (performed within 28 days prior to day 1 of protocol therapy unless otherwise stated. In case of active disease, evaluation should be done within 15 days) * Creatinine clearance of \>= 60 mL/min per 24 hour urine test or the Cockcroft-Gault formula (performed within 28 days prior to day 1 of protocol therapy unless otherwise stated. In case of active disease, evaluation should be done within 15 days) * Left ventricular ejection fraction (LVEF) \>= 50% * Note: To be performed within 28 days prior to day 1 of protocol therapy * If able to perform pulmonary function tests: forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC) and diffusion capacity of the lung for carbon monoxide (DLCO) (diffusion capacity) \>= 50% of predicted (corrected for hemoglobin). If unable to perform pulmonary function tests: oxygen (O2) saturation \> 92% on room air. * Note To be performed within 28 days prior to day 1 of protocol therapy * Seronegative for human immunodeficiency virus (HIV) antigen (Ag)/antibody (Ab) combination (combo), hepatitis C virus (HCV), active hepatitis B virus (HBV) (surface antigen negative), and syphilis (rapid plasma reagin measurement \[RPR\]) * If HCV positive, hepatitis C ribonucleic acid (RNA) quantitation must be performed * Meets other institutional and federal requirements for infectious disease titer requirements * Note Infectious disease testing to be performed within 28 days prior to day 1 of protocol therapy * Women of childbearing potential (WOCBP): negative urine or serum pregnancy test. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required * Agreement by females and males of childbearing potential to use an effective method of birth control or abstain from heterosexual activity for the course of the study through at least 6 months after the last dose of protocol therapy * Childbearing potential defined as not being surgically sterilized (men and women) or have not been free from menses for \> 1 year (women only)

Exclusion criteria

* Chemotherapy, radiation therapy, biological therapy, and/or immunotherapy within 21 days prior to day 1 of protocol therapy * Note: Conditioning regimen within 21 days prior to day 1 of protocol therapy is not considered as an exclusion criterion * History of allergic reactions attributed to compounds of similar chemical or biologic composition to study agent * Psychological issues, no appropriate caregivers identified, or non-compliant to medication * Uncontrolled medical or psychiatric disorders which may preclude patients to undergo clinical studies (Discretion of the attending physician) * Active diarrhea due to inflammatory bowel disease or malabsorption syndrome * Clinically significant uncontrolled illness * Active, uncontrolled systemic infection (bacterial, viral, or fungal) requiring antibiotics * Known history of immunodeficiency virus (HIV) or hepatitis B or hepatitis C infection * Diagnosis of Gilbert's disease * Other active malignancy * Females only: Pregnant or breastfeeding * Any other condition that would, in the investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns with clinical study procedures * Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

Design outcomes

Primary

MeasureTime frameDescription
Graft-versus-host Disease Free Relapse Free (GRFS) at 1 YearFrom the date of transplantation to the first time of observing following events: grade 3-4 acute graft versus host disease (GVHD), chronic GVHD requiring systemic treatment, relapse, or death, whichever occurs first, assessed at 1 year post transplant.GRFS is defined as time from the date of transplantation to the first time of observing following events: grade 3-4 acute graft versus host disease (GVHD), chronic GVHD requiring systemic treatment, relapse, or death, whichever occurs first. Kaplan-Meier curve will be generated for GRFS.

Secondary

MeasureTime frameDescription
Cumulative Incidence of Grade II-IV Acute GVHDFrom day 0 (date of stem cell infusion) through 100 days post-transplantAcute GVHD will be graded and staged according to the Consensus Grading.
Progression Free Survival (PFS)From the date of stem cell infusion to the date of death, disease relapse/progression, or last follow-up, whichever occurs first, assessed at 1 year post transplantKaplan-Meier curve will be generated for PFS.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORHaris Ali

City of Hope Comprehensive Cancer Center

Participant flow

Participants by arm

ArmCount
Treatment (Itacitinib Adipate, Tacrolimus, Sirolimus)
RIC: Patients receive fludarabine via infusion on days -9 to -5 and melphalan on day -4 in the absence of disease progression or unacceptable toxicity. ALLOGENEIC HSCT: Patients undergo HSCT on day 0. GVHD PROPHYLAXIS: Patients receive itacitinib PO QD beginning on day -3 and continuing until day 100 in the absence of disease progression or unacceptable toxicity. Patients also receive tacrolimus IV or PO and sirolimus PO beginning day -3 and continuing until day 100 with a taper in the absence of disease progression or unacceptable toxicity. Fludarabine: Given via infusion Itacitinib Adipate: Given PO Melphalan: Given IV Quality-of-Life Assessment: Ancillary studies Questionnaire Administration: Ancillary studies Sirolimus: Given PO Tacrolimus: Given IV or PO
59
Total59

Baseline characteristics

CharacteristicTreatment (Itacitinib Adipate, Tacrolimus, Sirolimus)
Age, Continuous63 years
Ethnicity (NIH/OMB)
Hispanic or Latino
10 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
48 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Region of Enrollment
United States
59 participants
Sex: Female, Male
Female
23 Participants
Sex: Female, Male
Male
36 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
14 / 59
other
Total, other adverse events
59 / 59
serious
Total, serious adverse events
9 / 59

Outcome results

Primary

Graft-versus-host Disease Free Relapse Free (GRFS) at 1 Year

GRFS is defined as time from the date of transplantation to the first time of observing following events: grade 3-4 acute graft versus host disease (GVHD), chronic GVHD requiring systemic treatment, relapse, or death, whichever occurs first. Kaplan-Meier curve will be generated for GRFS.

Time frame: From the date of transplantation to the first time of observing following events: grade 3-4 acute graft versus host disease (GVHD), chronic GVHD requiring systemic treatment, relapse, or death, whichever occurs first, assessed at 1 year post transplant.

ArmMeasureValue (NUMBER)
Treatment (Itacitinib Adipate, Tacrolimus, Sirolimus)Graft-versus-host Disease Free Relapse Free (GRFS) at 1 Year56 percentage of probability
Secondary

Cumulative Incidence of Grade II-IV Acute GVHD

Acute GVHD will be graded and staged according to the Consensus Grading.

Time frame: From day 0 (date of stem cell infusion) through 100 days post-transplant

ArmMeasureValue (NUMBER)
Treatment (Itacitinib Adipate, Tacrolimus, Sirolimus)Cumulative Incidence of Grade II-IV Acute GVHD4 percentage of probability
Secondary

Progression Free Survival (PFS)

Kaplan-Meier curve will be generated for PFS.

Time frame: From the date of stem cell infusion to the date of death, disease relapse/progression, or last follow-up, whichever occurs first, assessed at 1 year post transplant

ArmMeasureValue (NUMBER)
Treatment (Itacitinib Adipate, Tacrolimus, Sirolimus)Progression Free Survival (PFS)70 percentage of probability

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026