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

March 16, 2026 updated by: City of Hope Medical Center

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

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

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.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
59

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Duarte, California, United States, 91010
        • City of Hope Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

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)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: 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.
Other: Quality-of-Life Assessment
Ancillary studies
Other Names:
  • Quality of Life Assessment
Other: Questionnaire Administration
Ancillary studies
Drug: Melphalan
Given IV
Other Names:
  • CB-3025
  • L-PAM
  • L-Sarcolysin
  • Alanine Nitrogen Mustard
  • L-Sarcolysin Phenylalanine mustard
  • L-Sarcolysine
  • Melphalanum
  • Phenylalanine Mustard
  • Sarcoclorin
  • Sarkolysin
  • WR-19813
  • Phenylalanine nitrogen mustard
  • L-Phenylalanine mustard
Drug: Tacrolimus
Given IV or PO
Other Names:
  • Prograf
  • Hecoria
  • FK 506
  • Fujimycin
  • Protopic
Drug: Sirolimus
Given PO
Other Names:
  • Rapamune
  • AY 22989
  • rapamycin
  • RAPA
  • SILA 9268A
  • WY-090217
Drug: Fludarabine
Given via infusion
Other Names:
  • Fluradosa
Drug: Itacitinib Adipate
Given PO
Other Names:
  • INCB-039110 Adipate
  • INCB039110 Adipate

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Graft-versus-host Disease Free Relapse Free (GRFS) at 1 Year
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.
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.
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.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Cumulative Incidence of Grade II-IV Acute GVHD
Time Frame: From day 0 (date of stem cell infusion) through 100 days post-transplant
Acute GVHD will be graded and staged according to the Consensus Grading.
From day 0 (date of stem cell infusion) through 100 days post-transplant
Progression Free Survival (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
Kaplan-Meier curve will be generated for 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 transplant

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Hematologic recovery, donor cell engraftment and immune reconstitution
Time Frame: Up to 2 years post transplant
Immune reconstitution studies will be done by flow cytometry.
Up to 2 years post transplant
Biomarker analysis
Time Frame: Up to 2 years post transplant
Will assess acute GVHD biomarkers, JAK-regulated pro-inflammatory cytokines, and STAT3 phosphorylation.
Up to 2 years post transplant

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
City of Hope Medical Center

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Cancer Institute (NCI)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Haris Ali, City of Hope Comprehensive Cancer Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 11, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 22, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 9, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 6, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 6, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 9, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 30, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 16, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 19576 (Other Identifier: City of Hope Comprehensive Cancer Center)
  • NCI-2020-01722 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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