NCT03541889

Brief Summary

The purpose of this study is to find new tests that could help determine if the newly infused bone marrow cells are growing well after bone marrow transplantation or if new bone marrow cells are needed. The Investigator will use FLT imaging, an investigational imaging test, and collect blood samples to investigate whether the cells are growing well.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
56

participants targeted

Target at P50-P75 for phase_1

Timeline
18mo left

Started Feb 2021

Longer than P75 for phase_1

Geographic Reach
1 country

4 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress78%
Feb 2021Nov 2027

First Submitted

Initial submission to the registry

May 17, 2018

Completed
14 days until next milestone

First Posted

Study publicly available on registry

May 31, 2018

Completed
2.7 years until next milestone

Study Start

First participant enrolled

February 5, 2021

Completed
5.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2027

Last Updated

March 5, 2026

Status Verified

March 1, 2026

Enrollment Period

5.7 years

First QC Date

May 17, 2018

Last Update Submit

March 3, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • FLT SUV identifies graft failure

    To calculate if SUV \> 1.2 identifies subclinical engraftment using FLT PET/CT imaging for recipients of cord and haplo-HSCT who have not engrafted within 24 days of HSCT.

    24-28 days

Secondary Outcomes (4)

  • Map subclinical engraftment in alternative donor HSCT

    Day -1 to Day 28 after HSCT

  • TK1 serum levels identify graft failure

    24-28 days

  • Number of patients with CTCAE version 5 events exceeding grade 3 that are possibly, probably, or definitely attributed to the FLT imaging

    Day -1 to Day 28 after HSCT

  • Other cytokine and chemokine markers of graft failure

    24-28 days

Study Arms (2)

Cord and haplo imaging cohort

EXPERIMENTAL

For all pediatric and adult patients undergoing cord blood HSCT, FLT PET/CT imaging will occur one day prior to HSCT and on days 9 and 28 after HSCT. For recipients of haplo-HSCT, FLT PET/CT imaging will occur one day prior to HSCT and on days 5 and 28 after HSCT.

Drug: FLT imaging and TK1 blood measurements

Nonengrafted cohort

EXPERIMENTAL

Pediatric and adult patients who have not engrafted by day 24 after cord or haplo-identical HSCT will undergo a single FLT PET/CT image within one week to determine if this scan can identify graft failure versus delayed engraftment.

Drug: FLT imaging and TK1 blood measurements

Interventions

F18 labeled thymidine PET/CT scans will be performed. Serum measurements of TK1 will be obtained.

Cord and haplo imaging cohortNonengrafted cohort

Eligibility Criteria

Age4 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • General
  • Ability to undergo 18F FLT imaging without sedation
  • Patients \> 4 years of age and less than 80 years of age at highest risk for graft failure: cord blood HSCT, haplo HSCT, or lack of engraftment by day 28.
  • Diagnosed with a condition for which hematopoietic stem cell transplant (HSCT) is standard of care and HSCT is planned (Arm A) or occurred (Arm B)
  • In morphologic remission prior to HSCT
  • Patient or guardian able to give informed consent
  • Investigational therapies within past 28 days or planned on protocol are pre-approved by the PI or Site PI
  • Karnofsky or Lansky performance status \> 60%
  • Arm A
  • A1 Cord blood recipients: Absence of donor specific antibodies to cord HLA
  • Haplo-identical recipients: ≥ 5/10 and \< 7/8 allele mismatch donor
  • A2- myeloablative Haplo-identical transplant is planned
  • A3- reduced intensity Haplo-identical transplant is planned (non-myeloablative is excluded)
  • A1- myeloablative or reduced intensity transplant is planned (non-myeloablative is excluded)
  • Diagnosed with a condition for which hematopoietic stem cell transplant (HSCT) is standard of care and HSCT is planned
  • +8 more criteria

You may not qualify if:

  • History of psychiatric disorder which may compromise compliance with transplant protocol, or which does not allow for appropriate informed consent
  • Clinically significant systemic illness with manifestations of significant organ dysfunction which, in the judgment of the PI, or Co-I, would render the patient unlikely to tolerate the protocol therapy or complete the study
  • Presence of active malignancy from an organ system other than hematopoietic
  • Pregnant or lactating females
  • Patients who are unable or unwilling to use effective form (s) of contraception during the course of the study
  • Prior history of fluorothymidine allergy or intolerance
  • Decline enrolment on CIBMTR research protocol

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Emory University

Atlanta, Georgia, 30322, United States

RECRUITING

University of Michigan

Ann Arbor, Michigan, 48109, United States

RECRUITING

University Hospital of Cleveland UH Seidman Cancer Center

Cleveland, Ohio, 44106, United States

NOT YET RECRUITING

University of Oklahoma Health Sciences Center, Stephenson Cancer Center

Oklahoma City, Oklahoma, 73104, United States

RECRUITING

Study Officials

  • Kirsten Williams, MD

    Emory University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jennifer Holter, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 17, 2018

First Posted

May 31, 2018

Study Start

February 5, 2021

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

November 1, 2027

Last Updated

March 5, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations