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Hematologic DisordersNCT03093844

Haploidentical CD34+ Selected Cells Combined With Single Unit Umbilical Cord Blood Transplant for Treatment of High-risk Hematologic Disorders

A study testing Miltenyi CliniMACS® CD34 Reagent System in people with Hematologic Disorders, run by University of Colorado, Denver at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a study to evaluate the safety and efficacy of Miltenyi CliniMACS® CD34 Reagent System to promote engraftment of haploidentical CD34+ selected cells combined with single unit umbilical cord blood transplant for treatment of high-risk hematologic disorders. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hematologic Disorders
What is being tested?
Miltenyi CliniMACS® CD34 Reagent System
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
150 participants
Where
1 siteUnited States
Study dates
12 Oct 2017to 5 Feb 2025
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Ages 18-80 years inclusive
  • Diagnosed with high risk hematologic disorders warranting stem cell transplant per institutional standard of care
  • Lack HLA-identical related donor
  • Availability of at least one HLA- haploidentical (i.e. => 5/10 and <= 8/10 HLA match) related donor (HLA-A, B, C, DR, and DQ loci) who is available to donate CD34+ cells.
  • Availability of at least one 4/6 HLA-matched (HLA-A, B, and DR loci) cord blood unit from the National Marrow Donor Program (NMDP). The cord blood unit must contain a minimum TNC (prior to thawing) of at least 2x107 cells per kilogram of recipient body weight
  • Ability to comprehend the nature of the treatment 6.2. Exclusion Criteria - Recipient (any of the following)
  • HLA identical (6/6) related donor available and readily accessible at time of transplantation evaluation
  • Any patient not meeting institutional standard guidelines for transplant eligibility

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Colorado

    Aurora, Colorado, 80045

Other trials in United States

About this study

Official title: Safety and Efficacy of Miltenyi CliniMACS® CD34 Reagent System for Transplant Protocol Utilizing Haploidentical CD34+ Selected Cells Combined With Single Unit Umbilical Cord Blood Transplant for Treatment of High-risk Hematologic Disorders

This is a study to evaluate the safety and efficacy of Miltenyi CliniMACS® CD34 Reagent System to promote engraftment of haploidentical CD34+ selected cells combined with single unit umbilical cord blood transplant for treatment of high-risk hematologic disorders.

Read the detailed description

In this clinical protocol, the CliniMACS® CD34 Reagent System will be used for processing hematopoietic progenitor cells collected by apheresis (HPC, Apheresis) from an allogeneic, HLA-haploidentical, related donor to obtain a CD34+ cell-enriched population for hematopoietic reconstitution. The haploidentical donor will be mobilized by G-CSF and undergo one apheresis to collect CD34+ stem cells. The products will be cryopreserved until the time of transplantation. Recipients with hematologic disorders who require transplant will receive a standard conditioning regimen and will receive an allograft on day 0 containing donor CD34+ cells that have been positively selected and T-cell depleted following G-CSF mobilization combined with a single UCB unit.

Being tested
Miltenyi CliniMACS® CD34 Reagent System
Keywords
Stem Cell Transplant, Umbilical Cord Blood Transplant, Haploidentical CD34+ Selected Cells
Medical subject headings
Hematologic Diseases

What participants receive

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

  • Miltenyi CliniMACS® CD34 Reagent SystemDevice

    Miltenyi CliniMACS® CD34 Reagent System will be used to prepare CD34+ enriched/T-cell depleted cells from haploidentical mobilized peripheral blood.

Study groups in NCT03093844
Study groupRoleWhat they receive
Miltenyi CliniMACS® CD34 Reagent SystemExperimentalThe haploidentical donor will be mobilized by G-CSF and undergo one apheresis to collect CD34+ selected stem cell product after Miltenyi CliniMACS® CD34+ selection. The products will be cryopreserved until the time of transplantation. Recipients will receive a standard conditioning regimen. After the conditioning regimen, the subjects will receive an allograft on day 0 containing donor CD34+ cells that have been positively selected and T-cell depleted following G-CSF mobilization combined with a single UCB unit. UCB unit will not be manipulated, and will be prepared and infused separately following standard of care procedure.
Receives: Device: Miltenyi CliniMACS® CD34 Reagent System

What is being measured

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

  1. The Number of Patients With Successful Engraftment

    To determine the rate of successful engraftment of patients who received haploidentical CD34+ selected cells combined with single unit umbilical cord blood transplant. Failure defined as failure of Miltenyi CliniMACS® CD34 Reagent System to select CD34+ cells, and/or failure to engraft by day 42.

    Measured: 42 days

Timeline

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

  1. First posted28 Mar 2017
  2. Study start12 Oct 2017
  3. Primary completion27 Nov 2024
  4. Study completion5 Feb 2025

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
This is a phase 1/phase 2 study.
Masking
None (open label)
Enrolment
150 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03093844
Sponsor's protocol ID
16-1672.cc
Status last verified
Aug 2025
First submitted
22 Mar 2017
Last updated
15 Aug 2025
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • van Besien K, Childs R. Haploidentical cord transplantation-The best of both worlds. Semin Hematol. 2016 Oct;53(4):257-266. doi: 10.1053/j.seminhematol.2016.07.004. Epub 2016 Jul 25.

    PubMed 27788764
  • van Besien K, Koshy N, Gergis U, Mayer S, Cushing M, Rennert H, Reich-Slotky R, Mark T, Pearse R, Rossi A, Phillips A, Vasovic L, Ferrante R, Hsu YM, Shore T. Cord blood chimerism and relapse after haplo-cord transplantation. Leuk Lymphoma. 2017 Feb;58(2):288-297. doi: 10.1080/10428194.2016.1190970. Epub 2016 Jun 23.

    PubMed 27333804
  • Magro E, Regidor C, Cabrera R, Sanjuan I, Fores R, Garcia-Marco JA, Ruiz E, Gil S, Bautista G, Millan I, Madrigal A, Fernandez MN. Early hematopoietic recovery after single unit unrelated cord blood transplantation in adults supported by co-infusion of mobilized stem cells from a third party donor. Haematologica. 2006 May;91(5):640-8.

    PubMed 16670070
  • Kwon M, Bautista G, Balsalobre P, Sanchez-Ortega I, Serrano D, Anguita J, Buno I, Fores R, Regidor C, Garcia Marco JA, Vilches C, de Pablo R, Fernandez MN, Gayoso J, Duarte R, Diez-Martin JL, Cabrera R. Haplo-cord transplantation using CD34+ cells from a third-party donor to speed engraftment in high-risk patients with hematologic disorders. Biol Blood Marrow Transplant. 2014 Dec;20(12):2015-22. doi: 10.1016/j.bbmt.2014.08.024. Epub 2014 Sep 22.

    PubMed 25255162

Questions about this trial

What is this clinical trial studying?

A study testing Miltenyi CliniMACS® CD34 Reagent System in people with Hematologic Disorders, run by University of Colorado, Denver 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 8 inclusion and 0 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: finished, as of the sponsor's last update on 15 Aug 2025. 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?

Yes. Results are posted in the registry (first posted 15 Aug 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Number of Patients With Successful Engraftment (time frame: 42 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03093844, which also lists 4 linked publications.

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 15 Aug 2025.

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