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Leukemia, Not Otherwise SpecifiedNCT03555851

Factors Affecting Post-transplant Cyclophosphamide (PTCy) Efficacy

An observational study of Leukemia, Not Otherwise Specified and Leukemia, Other, run by Wake Forest University Health Sciences at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

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… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Cyclophosphamide and Specimen collection
How many people
120 participants
Where
1 siteUnited States
Study dates
13 Jul 2018to Aug 2035
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Subjects who are scheduled as a recipient or respective donor for the following hematopoietic stem cell transplants (HCT): haplo-identical donor HCT, match related donor (MRD) HCT, matched unrelated donor (MUD) HCT.

Who may be able to join

  • Recipients and donors must meet all of the following applicable inclusion criteria to participate in this study:
  • Informed consent and HIPAA authorization for release of personal health information signed by the subject.
  • Age ≥ 18 years at the time of consent.
  • 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.
  • Recipient only: Planned post-transplant cyclophosphamide
  • As determined by the enrolling physician, ability of the subject to understand and comply with study procedures for the entire length of the study

Who cannot join

  • Subjects meeting any of the criteria below may not participate in the study:
  • 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.
  • Recipient only: Treatment with any investigational drug within 30 days prior to day -6 of treatment
  • 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.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site, 1 recruiting
  • Levine Cancer Institute

    Charlotte, North Carolina, 28204

    Elizabeth Parke, 980-442-2011, elizabeth.parke@atriumhealth.org

    Recruiting

Other trials in United States

About this study

Official title: Elucidation of Factors Predicting Efficacy and Toxicity of Post Transplantation Cyclophosphamide (PTCy) as a Strategy for Graft Versus Host Disease Prevention in Haploidentical, Matched Related Donor and Matched Unrelated Donor Peripheral Blood Hematopoietic Cell Transplantation

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).

Read the detailed description

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.

Being tested
Cyclophosphamide, Specimen collection
Medical subject headings
Leukemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CyclophosphamideDrug

    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 collectionOther

    Buccal swabs will be obtained from donors for pharmacogenomics.

Study groups in NCT03555851
Study groupRoleWhat they receive
RecipientCyclophosphamide
Receives: Drug: Cyclophosphamide; Other: Specimen collection
DonorSpecimen collection
Receives: Other: Specimen collection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Comparison of Cy cMax Values

    Evaluation and comparison of average Day 3 Cy cMax values between subjects who experience acute GVHD versus subjects who do not experience acute GVHD

    Measured: Approx. 24 mos

Secondary outcomes (4)
  1. Incidence of chronic GVHD

    Calculated for each subject as a binary variable indicating whether or not subject experienced chronic GVHD

    Measured: Approx. 24 mos

  2. Cy exposure

    Cy (and related metabolites) exposure will be calculated using area under the concentration curve (AUC). This will be accomplished using the trapezoidal approximation, and will be calculated over the 24 hour period following first pre-transplant dose of Cy and over the 24 hour period following post-transplant dose of Cy.

    Measured: Approx. 10 days

  3. Toxicities

    The incidence of adverse events of special interests will be collected according to CTCAE version 4.03

    Measured: Approx. 180 days

  4. Pharmacogenetics of Cy-related genes

    Evaluation of the prognostic value of pharmacogenetics (PG) of Cy-related candidate genes from the recipient's germ-line DNA, using logistic regression, on the incidence and severity of acute and chronic GVHD. PG of Cy-related candidate genes will be performed on 12 genes. Genes encoding CYP enzymes will be classified into metabolizer status and other genes will be classified as either wild type, heterozygous, or homozygous variants.

    Measured: Approx. 24 mos

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Jun 2018
  2. Study start13 Jul 2018
  3. Primary completionOct 2033 (estimated)
  4. Study completionAug 2035 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
120 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03555851
Sponsor's protocol ID
IRB00081375
Other IDs
LCI-HEM-HCT-PTCY-001, Pro00024582, NCI-2024-06503
Status last verified
Jul 2026
First submitted
2 May 2018
Last updated
13 Jul 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Leukemia, Not Otherwise Specified and Leukemia, Other, run by Wake Forest University Health Sciences at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 13 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Elizabeth Parke (980-442-2011, elizabeth.parke@atriumhealth.org), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Comparison of Cy cMax Values (time frame: Approx. 24 mos). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jul 2026.

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