Factors Affecting Post-transplant Cyclophosphamide (PTCy) Efficacy

NCT ID: NCT03555851

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

120 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-07-13

Study Completion Date

2035-08-31

Brief Summary

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This study will examine the influence of donor and recipient pharmacogenetics (PG), drug pharmacokinetics (PK), and T cell phenotypes and how it may permit a tailored dosing strategy to improve the therapeutic index of post-transplant cyclophosphamide (PTCy) and optimize the graft versus tumor effect, while minimizing acute and chronic graft versus host disease (GVHD).

Detailed Description

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The primary objective of this single-arm, pilot study is to determine whether pharmacogenetics (PG) of Cy-related candidate genes from the recipients and/or donors (haploidentical and matched related donor HCTs only) germ-line DNA is associated with incidence and severity of acute and chronic GVHD. Secondary objectives include determining whether pharmacogenetics (PG) of Cy-related candidate genes from the recipients and/or donors (haploidentical and matched related donor HCTs only) germ-line DNA is associated with Cy (and metabolites) exposure and toxicities; quantifying Cy (and related metabolites) exposure measured as the area under the concentration time curve (AUC) from zero to 24 hours both before (day -6) and after transplant (day +3), and correlate exposure with incidence of acute and chronic GVHD, and Adverse Events of Special Interest (AESIs); and determining whether immune activation or polarization prior to or following Cy GVHD prophylaxis is associated with grade of acute or chronic GVHD grade and AESIs. Safety objects include evaluating Cy administered, adverse events of special interest (including deaths while on study therapy), selected laboratory parameters (including time to neutrophil recovery), and immunosuppressant concomitant medications administration. Initially, 20 participants (HCT recipients and their respective haploidentical or matched related donors) will be enrolled with a subsequent 100 additional subjects enrolled.

Conditions

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Leukemia, Not Otherwise Specified Leukemia, Other

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Recipient

Cyclophosphamide

Cyclophosphamide

Intervention Type DRUG

Pharmacogenomics of candidate genes and pharmacokinetic analyses of cyclophosphamide administered as part of a reduced intensity conditioning (RIC) regimen and as post-transplant GVHD prophylaxis will be examined.

Specimen collection

Intervention Type OTHER

Buccal swabs will be obtained from donors for pharmacogenomics.

Donor

Specimen collection

Specimen collection

Intervention Type OTHER

Buccal swabs will be obtained from donors for pharmacogenomics.

Interventions

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Cyclophosphamide

Pharmacogenomics of candidate genes and pharmacokinetic analyses of cyclophosphamide administered as part of a reduced intensity conditioning (RIC) regimen and as post-transplant GVHD prophylaxis will be examined.

Intervention Type DRUG

Specimen collection

Buccal swabs will be obtained from donors for pharmacogenomics.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Informed consent and HIPAA authorization for release of personal health information signed by the subject.
2. Age ≥ 18 years at the time of consent.
3. Subject is scheduled as a recipient or respective donor (Donor consent/participation is not required for subjects undergoing matched unrelated donor HCT) for the following hematopoietic stem cell transplants (HCT) procedures using a non-myeloablative regimen at Levine Cancer Institute (LCI), and has been deemed a qualified candidate by his/her physician, per LCI medical standards: haplo-identical donor HCT, match related donor (MRD) HCT, matched unrelated donor (MUD) HCT.
4. Recipient only: Planned post-transplant cyclophosphamide
5. As determined by the enrolling physician, ability of the subject to understand and comply with study procedures for the entire length of the study

Exclusion Criteria

Subjects meeting any of the criteria below may not participate in the study:

1. Recipient only (applies only to haplo-identical and MRD HCT recipients; not required for MUD HCT recipients): Does not have a respective donor who is willing to sign informed consent for participation in this study.
2. Recipient only: Treatment with any investigational drug within 30 days prior to day -6 of treatment
3. Donor only (applies only to haplo-identical and MRD HCTs; donor participation is not required for MUD HCTs): Does not have a respective recipient who is willing to sign informed consent for participation in this study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Atrium Health Levine Cancer Institute

OTHER

Sponsor Role collaborator

Wake Forest University Health Sciences

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Aleksander Chojecki, MD

Role: PRINCIPAL_INVESTIGATOR

Wake Forest University Health Sciences

Locations

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Levine Cancer Institute

Charlotte, North Carolina, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Elizabeth Parke

Role: CONTACT

980-442-2011

Facility Contacts

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Elizabeth Parke

Role: primary

980-442-2011

Other Identifiers

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LCI-HEM-HCT-PTCY-001

Identifier Type: OTHER

Identifier Source: secondary_id

Pro00024582

Identifier Type: OTHER

Identifier Source: secondary_id

NCI-2024-06503

Identifier Type: OTHER

Identifier Source: secondary_id

IRB00081375

Identifier Type: -

Identifier Source: org_study_id

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