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Hematologic DiseasesPhase 1/2NCT00993486

Dose-ranging Study of a Single Administration of T-cell Add-back Depleted of Host Alloreactive Cells in Patients Undergoing a Peripheral Blood Stem Cell Transplant From a Related, Haploidentical Donor

A Phase 1/2 study testing Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR) in people with Hematologic Diseases and Hematologic Malignancies, run by Kiadis Pharma at 1 site in Canada.

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

The purpose of this study is to determine the maximum tolerated dose and evaluate the safety of the administration of donor lymphocytes depleted of alloreactive T-cells following a stem cell transplant from a related, haploidentical donor, in patients with severe hematologic malignancies. Read more about this study

Who is it for?
Ages 18 to 50 years
What is being tested?
Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
19 participants
Where
1 siteCanada
Study dates
Jan 2005to Apr 2013
Phase
Phase 1/2
Are there results?
None posted in the registry

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 to 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Any of the following hematologic malignancies: very high risk leukemia, acute leukemia, chronic myeloid leukemia (CML), lymphoma, multiple myeloma (MM), myelodysplastic syndrome (MDS)
  • Incompatibility at two to three loci (HLA-A, B and/or DR) or a single DR locus of the unshared haplotype between the donor and recipient
  • Life expectancy of at least 3 months
  • Satisfactory performance status (ECOG ≤ 2);

Who cannot join

  • Possibility of performing an allogeneic transplant with an HLA (human leukocyte antigen) matched sibling donor
  • Availability of an 6/6 HLA-A, B and DRB1 matched unrelated donor within 2-3 months;
  • Pregnancy
  • Viral hepatitis (B or C)
  • Active serious infectious process
  • HIV positivity;
Show all 14Show fewer
  • Systemic dysfunction (cardiac, pulmonary, hepatic and renal) contra-indicating allogeneic stem cell transplantation
  • Prior allogeneic transplantation
  • Prior autologous transplantation within twelve months of baseline visit
  • Any abnormal condition or laboratory result that is considered by the principal investigator capable of altering patient condition or study outcome
  • Active central nervous system (CNS) disease at baseline
  • Participation in a trial with an investigational agent within 30 days prior to entry in the study
  • Malignant cells in circulating peripheral blood (> 25%)
  • Other active malignant disease that would severely limit life expectancy

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Maisonneuve-Rosemont Hospital

    Montreal, Quebec, H1T 2M4

Other trials in Canada

About this study

Official title: Phase I, Dose-ranging, Open-label, Study of a Single Administration of T-cells Add-back Depleted of Host Alloreactive Cells Using Theralux™ Therapy, Following Haploidentical Peripheral Blood Stem Cell Transplantation Submitted to CD34+ Cell Selection, in Patients With Severe Hematologic Malignancies

The purpose of this study is to determine the maximum tolerated dose and evaluate the safety of the administration of donor lymphocytes depleted of alloreactive T-cells following a stem cell transplant from a related, haploidentical donor, in patients with severe hematologic malignancies.

Read the detailed description

Allogeneic stem cell transplantation is the treatment of choice for many patients with leukemia and other hematologic malignancies. However, a major limitation of this therapy is that for a significant number of patients no fully HLA-matched donor can be found. The application of partially HLA-matched (haploidentical) family donors, who are virtually always available, has some complications. If there is no T-cell add-back it increases the risk for life-threatening infections and disease relapse, while in case of T-cell add-back the risk of graft-versus-host disease is raised.

Kiadis Pharma has developed a method to selectively deplete host alloreactive T-cells through photodynamic therapy, using TH9402 ex vivo. The donor lymphocyte preparation depleted of functional alloreactive T-cells (ATIR) are administered to the patient 4-6 weeks after the stem cell transplant. This method enables early immune reconstitution while preventing graft-versus-host disease.

Being tested
Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)
Keywords
Haploidentical stem cell transplantation, Graft-versus-host disease, Immune reconstitution, Alloreactive T-cells, Photodepletion, TH9402, Transplant related mortality, Hematologic malignancy
Medical subject headings
Hematologic Diseases, Hematologic Neoplasms, Graft vs Host Disease

What participants receive

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

  • Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)Biological

    Single intravenous infusion

Study groups in NCT00993486
Study groupRoleWhat they receive
L1 (dose 1.0x10E4 T-cells/kg)ExperimentalNot described
Receives: Biological: Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)
L2 (dose 5.0x10E4 T-cells/kg)ExperimentalNot described
Receives: Biological: Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)
L3 (dose 1.3x10E5 T-cells/kg)ExperimentalNot described
Receives: Biological: Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)
L4 (dose 3.2x10E5 T-cells/kg)ExperimentalNot described
Receives: Biological: Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)
L5 (dose 7.9x10E5 T-cells/kg)ExperimentalNot described
Receives: Biological: Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)
L6 (dose 2.0x10E6 T-cells/kg)ExperimentalNot described
Receives: Biological: Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)
L7 (dose 5.0x10E6 T-cells/kg)ExperimentalNot described
Receives: Biological: Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR)

What is being measured

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

  1. Dose limiting toxicity, defined as acute graft-versus-host disease grade III or IV

    Measured: Within 30 days after ATIR infusion

Secondary outcomes (5)
  1. Immune reconstitution

    Measured: Until 60 months after ATIR infusion

  2. Rate of disease relapse

    Measured: Until 60 months after ATIR infusion

  3. Occurrence and severity of graft-versus-host disease

    Measured: Until 60 months after ATIR infusion

  4. Occurrence of adverse drug reactions

    Measured: Until 18 months after ATIR infusion

  5. Incidence and severity of infections

    Measured: Until 18 months after ATIR infusion

Timeline

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

  1. First posted12 Oct 2009 (estimated)
  2. Study startJan 2005
  3. Primary completionOct 2008
  4. Study completionApr 2013

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 1/2
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
19 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00993486
Sponsor's protocol ID
CR-GVH-001
Status last verified
Jun 2013
First submitted
9 Oct 2009
Last updated
20 Jun 2013
Results posted
No
Data monitoring committee
No

Publications

  • Roy DC, Lachance S, Cohen S, Delisle JS, Kiss T, Sauvageau G, Busque L, Ahmad I, Bernard L, Bambace N, Boumedine RS, Guertin MC, Rezvani K, Mielke S, Perreault C, Roy J. Allodepleted T-cell immunotherapy after haploidentical haematopoietic stem cell transplantation without severe acute graft-versus-host disease (GVHD) in the absence of GVHD prophylaxis. Br J Haematol. 2019 Sep;186(5):754-766. doi: 10.1111/bjh.15970. Epub 2019 May 28.

    PubMed 31135970

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Donor lymphocyte preparation depleted of functional host alloreactive T-cells (ATIR) in people with Hematologic Diseases and Hematologic Malignancies, run by Kiadis Pharma at 1 site in Canada.

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 4 inclusion and 14 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 20 Jun 2013. 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 Canada. 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.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Dose limiting toxicity, defined as acute graft-versus-host disease grade III or IV (time frame: Within 30 days after ATIR infusion). 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 NCT00993486, which also lists 1 linked publication.

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 20 Jun 2013.

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