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Acute Myeloid LeukemiaPhase 2NCT02500550

Safety and Efficacy of Two Doses of ATIR101, a T-lymphocyte Enriched Leukocyte Preparation Depleted of Host Alloreactive T-cells, in Patients With a Hematologic Malignancy Who Received a Hematopoietic Stem Cell Transplantation From a Haploidentical Donor

A Phase 2 study testing ATIR101, Haploidentical hematopoietic stem cell transplantation (HSCT) and TBI regime in people with Acute Myeloid Leukemia and Acute Lymphoblastic Leukemia, run by Kiadis Pharma at 11 sites in 6 countries.

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 whether a repeat dose administration of ATIR101 is safe and effective when infused in patients with a hematologic malignancy following a T-cell depleted stem cell graft from a related haploidentical donor. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
ATIR101, Haploidentical hematopoietic stem cell transplantation (HSCT) and TBI regime
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
11 sitesin 6 countries
Study dates
9 Oct 2015to 17 Dec 2018
Phase
Phase 2
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 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Any of the following hematologic malignancies:
  • Acute myeloid leukemia (AML) in first remission with high-risk features or in second or higher remission
  • Acute lymphoblastic leukemia (ALL) in first remission with high-risk features or in second or higher remission
  • Myelodysplastic syndrome (MDS): transfusion-dependent, or intermediate or higher IPSS-R risk group
  • Karnofsky performance status ≥ 70%
  • Eligible for haploidentical stem cell transplantation according to the investigator
Show all 11Show fewer
  • Male or female, age ≥ 18 years and ≤ 65 years
  • Haploidentical family donor with 2 to 3 mismatches at the HLA-A, -B and/or -DR loci of the unshared haplotype
  • Male or female, age ≥ 16 and ≤ 75 years (If applicable, local legal requirements for donors under the age of 18 will be followed)
  • Eligible for donations of human blood and blood components according to local requirements and regulations
  • Eligible for donation according to the transplantation center

Who cannot join

  • Availability of a fully matched related or unrelated donor following a donor search
  • Diffusing capacity for carbon monoxide (DLCO) < 50% predicted
  • Left ventricular ejection fraction < 50% (evaluated by echocardiogram or MUGA)
  • AST > 2.5 x ULN (CTCAE grade 2)
  • Bilirubin > 1.5 x ULN (CTCAE grade 2)
  • Creatinine clearance < 50 mL/min (calculated or measured)
Show all 15Show fewer
  • Positive HIV test
  • Positive pregnancy test (women of childbearing age only)
  • Prior allogeneic HSCT
  • Estimated probability of surviving less than 3 months
  • Known allergy to any of the components of ATIR101 (e.g., dimethyl sulfoxide)
  • Known presence of HLA antibodies against the non-shared donor haplotype
  • Any other condition which, in the opinion of the investigator, makes the patient ineligible for the study
  • Positive pregnancy test or nursing (women of childbearing age only)
  • Positive viral test for HIV-1, HIV-2, HBV, HCV, Treponema pallidum, HTLV 1 (if tested), HTLV-2 (if tested), or WNV (if tested)

Trial locations and contacts

11 sites in 6 countries.

11 sites in 6 countries

Belgium4 sites
  • Algemeen Ziekenhuis Sint-Jan

    Bruges, 8000

  • Institut Jules Bordet

    Brussels, 1000

  • Universitair Ziekenhuis Gasthuisberg

    Leuven, 3000

  • Centre Hospitalier Universitaire de Liège

    Liège, 4000

Other trials in Belgium

Canada2 sites
  • Juravinski Hospital and Cancer Centre

    Hamilton, Ontario, L8V 1C3

  • Maisonneuve-Rosemont Hospital

    Montreal, Quebec, H1T 2M4

Other trials in Canada

United Kingdom2 sites
  • Heartlands Hospital

    Birmingham, B9 5SS

  • Hammersmith Hospital

    London, W12 ONN

Other trials in United Kingdom

Croatia1 site
  • University Hospital Centre Zagreb

    Zagreb, 10000

Other trials in Croatia

Germany1 site
  • University Medical Center Mainz

    Mainz, 55131

Other trials in Germany

Portugal1 site
  • Hospital de Santa Maria, Clinica Universitaria Hematologia

    Lisbon, 1649-028

Other trials in Portugal

About this study

Official title: An Exploratory, Open-label, Multicenter Study to Evaluate the Safety and Efficacy of a Two-dose Regimen of ATIR101, a T-lymphocyte Enriched Leukocyte Preparation Depleted ex Vivo of Host Alloreactive T-cells (Using Photodynamic Treatment), in Patients With a Hematologic Malignancy, Who Received a CD34-selected Hematopoietic Stem Cell Transplantation From a Haploidentical Donor

The purpose of this study is to determine whether a repeat dose administration of ATIR101 is safe and effective when infused in patients with a hematologic malignancy following a T-cell depleted stem cell graft from a related haploidentical donor. All patients are planned to receive two ATIR101 doses of 2×10E6 viable T-cells/kg, unless the second dose is reduced or halted for safety reasons.

Read the detailed description

Study CR-AIR-008 is an exploratory, open-label, multicenter study. After signing informed consent, patients will receive a hematopoietic stem cell transplantation (HSCT) from a related, haploidentical donor, followed by a first ATIR101 infusion at a dose of 2×10E6 viable T-cells/kg between 28 and 32 days after the HSCT. Patients will receive a second ATIR101 infusion at a dose of 2×10E6 viable T-cells/kg between 70 and 74 days after the HSCT. To evaluate safety of the second dose administration, the first 6 patients treated will be evaluated for the occurrence of dose limiting toxicity (DLT), defined as acute GvHD grade III/IV within 120 days post HSCT (or within 42 days after the second ATIR101 infusion in case of prior dose delays). If within the first 6 patients no DLT is observed, treatment of the remaining 9 patients will continue with two ATIR101 doses of 2×10E6 viable T cells/kg. If within the first 6 patients at least 2 patients show DLT, the second ATIR101 infusion will be adjusted to a dose of 1×10E6 viable T cells/kg. If in one of the next 3 patients treated at this lower dose again DLT is observed, the second ATIR101 infusion will be halted and the remaining patients will be given only a single dose of ATIR101.

All patients treated with ATIR101 will be followed up until 12 months after the HSCT. Assessments will be performed at weekly visits from the day of the first ATIR101 infusion (Week 4) until 6 weeks after the second ATIR101 infusion (Week 16), at monthly visits from 4 until 6 months after the HSCT, and every 3 months from 6 until 12 months after the HSCT.

Being tested
ATIR101, Haploidentical hematopoietic stem cell transplantation (HSCT), TBI regime, Non-TBI regime
Keywords
Haploidentical stem cell transplantation, Graft versus host disease, Immune reconstitution, Alloreactive T-cells, Photodynamic treatment, Hematologic malignancy, Transplant-related mortality
Medical subject headings
Leukemia, Myeloid, Acute, Precursor Cell Lymphoblastic Leukemia-Lymphoma, Myelodysplastic Syndromes, Graft vs Host Disease, Hematologic Neoplasms

What participants receive

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

  • ATIR101Biological

    T-lymphocyte enriched leukocyte preparation depleted ex vivo of host alloreactive T-cells (using photodynamic treatment). Two intravenous infusions with 2x10E6 viable T-cells/kg approximately 42 days apart (unless the second dose is reduced or halted for safety reasons).

  • Haploidentical hematopoietic stem cell transplantation (HSCT)Procedure or surgery

    CD34-selected HSCT from a haploidentical donor. In order to prepare the patient for the HSCT one of the following myeloablative conditioning regimens is recommended:

    • Total Body Irradiation (TBI) regime
    • Non-TBI regime (See below for details)
  • TBI regimeProcedure or surgery

    • Fractionated TBI 200 cGy twice daily for 3 days on Day -10 to -8 (1200 cGy in 6 fractions)
    • Fludarabine 30 mg/m2 IV once daily for 5 days on Day -7 to -3
    • Thiotepa; 5 mg/kg IV twice daily for 1 day on Day -7
    • Anti-thymocyte globulin (ATG; Thymoglobulin®); 2.5 mg/kg once daily for 4 days on Day -5 to -2, as a continuous IV infusion for 8 hours. During the course of ATG, patients will receive methylprednisolone 2 mg/kg/day IV.
  • Non-TBI regimeProcedure or surgery

    • Fludarabine; 30 mg/m2 IV once daily for 5 days on Day -8 to -4
    • Thiotepa; 5 mg/kg IV twice daily for 1 day on Day -7
    • Melphalan; 60 mg/m2 IV once daily for 2 days on Day -2 and -1
    • ATG (Thymoglobulin®); 2.5 mg/kg once daily for 4 days on Day -5 to -2, as a continuous IV infusion for 8 hours. During the course of ATG, patients will receive methylprednisolone 2 mg/kg/day IV.
Study groups in NCT02500550
Study groupRoleWhat they receive
ATIR101ExperimentalNot described
Receives: Biological: ATIR101; Procedure: Haploidentical hematopoietic stem cell transplantation (HSCT); Procedure: TBI regime; Procedure: Non-TBI regime

What is being measured

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

  1. Incidence of Acute Graft Versus Host Disease (GVHD) Grade III/IV

    Measured: 180 days post HSCT

Secondary outcomes (8)
  1. Incidence and Severity of Acute and Chronic GVHD

    Measured: Between 6 and 12 months after HSCT

  2. Percentage of Participants Who Achieved T-Cell Reconstitution at 6 and 12 Months Post HSCT

    Defined as CD3+ in peripheral blood higher than 0.2×10E9/L at 6 and 12 months post HSCT.

    Measured: 6 and 12 months post HSCT

  3. Viral, Fungal, and Bacterial Infections

    Infection was defined as (1) a clinically apparent infectious disease with symptoms or (2) a viral reactivation. Severity was graded according to CTCAE vs. 4.0

    Measured: From 6 months to 1 year after HSCT

  4. Transplant-related Mortality (TRM)

    Defined as death due to causes other than disease relapse or progression, or other causes which are unrelated to the transplantation procedure (e.g. accident, suicide)

    Measured: 12 months post HSCT

  5. Relapse-related Mortality (RRM)

    Defined as death due to disease relapse or disease progression

    Measured: 12 months post HSCT

  6. Overall Survival (OS)

    Defined as the time from HSCT until death from any cause

    Measured: 12 months post HSCT

  7. Progression-free Survival (PFS)

    Defined as the time from HSCT until relapse, disease progression, or death, whichever occurs first

    Measured: 12 months post HSCT

  8. GVHD-free, Relapse-free Survival (GRFS)

    Defined as the time until acute GVHD grade III/IV, chronic GVHD requiring systemic treatment, relapse, or death, whichever occurs first

    Measured: 12 months post HSCT

Timeline

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

  1. First posted16 Jul 2015 (estimated)
  2. Study start9 Oct 2015
  3. Primary completionJul 2018
  4. Study completion17 Dec 2018

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 2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02500550
Sponsor's protocol ID
CR-AIR-008
Status last verified
May 2021
First submitted
14 Jul 2015
Last updated
18 May 2021
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ATIR101, Haploidentical hematopoietic stem cell transplantation (HSCT) and TBI regime in people with Acute Myeloid Leukemia and Acute Lymphoblastic Leukemia, run by Kiadis Pharma at 11 sites in 6 countries.

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 11 inclusion and 15 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 18 May 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in Belgium, Canada, United Kingdom, Croatia, Germany and 1 more country. 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 phase mean?

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?

Yes. Results are posted in the registry (first posted 12 Jan 2021). 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?

Incidence of Acute Graft Versus Host Disease (GVHD) Grade III/IV (time frame: 180 days post HSCT). 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 18 May 2021.

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