- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00914628
Efficacy Study on the Strategy of HSV-Tk Engineering Donor Lymphocytes to Treat Patients With High Risk Acute Leukemia (TK008)
TK008: Randomized Phase III Trial of Haploidentical HCT With or Without an Add Back Strategy of HSV-Tk Donor Lymphocytes in Patients With High Risk Acute Leukemia
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Delayed immune-reconstitution remains one of the main limitation of haploidentical stem cell transplantation. The risk of severe infections remains high for several months and CD3+ reconstitution could take more than 10 months. The low number of lymphocytes infused with the graft, the degree of HLA (Human Leukocyte Antigen) disparity, and a reduced thymic function in adults and differences in host/donor antigen presenting cells are contributing causes.
The infusions of HSV-TK engineered lymphocytes may represent a significant therapeutic improvement in haploidentical HCT (hematopoietic cell transplantation), because it remarkably may enhance both GvL (Graft versus Leukemia) activity, thus reducing the occurrence of disease relapse, and post-transplant immune reconstitution in the absence of chronic immune suppression, thus decreasing the rate of both post-transplant opportunistic infections and transplant-related mortality. Furthermore, the efficient control of GvHD achieved via the suicide mechanism allows also the multiple infusion of HSV-TK-treated donor lymphocytes, when needed, that might further improve post-transplant host immune reconstitution, and survival in patients receiving haplo-HCT. Finally, this therapeutic approach can become a valuable option for all candidates, including patients with advanced disease and older age.
The proposed clinical trial represents an innovative therapeutic treatment for patients affected by high risk acute leukemia, who have undergone haploidentical stem cell transplantation.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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Gent, Belgium
- Universitair Ziekenhuis
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Leuven, Belgium, 3000
- University Hospitals Leuven
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Liège, Belgium
- Centre Hospitalier Universitaire de Liège - Domaine Universitaire du Sart Tilman
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Besançon, France, 25030
- Hopital Jean Minjoz
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Clermont-Ferrand, France
- Centre Hospitalier Universitaire de Clermont-Ferrand
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Lille, France
- Centre Hospitalier Regional Universitaire de Lille
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Marseille, France
- Institut Paoli-Calmettes
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Nantes, France
- Centre Hospitalier Universitaire de Nantes
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Nice, France
- Hôpital l'Archet
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Paris, France
- Hôpital Saint-Antoine
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Toulouse, France
- IUCT Oncopole - Institut Universitaire du Cancer de Toulouse
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Berlin, Germany, 13353
- Charitè; Campus Benjamin Franklin
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Hamburg, Germany
- University Medical Center Hamburg-Eppendorf
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Hannover, Germany, 30625
- Medizinische Hochschule Hannover
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Leipzig, Germany, 04103
- University of Leipzig
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Tubingen, Germany, 72076
- Universitat Tubingen
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Ulm, Germany, 89081
- Medizinische Klinik und Poliklinik
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Thessaloniki, Greece, 57010
- George Papanicolaou Hospital
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Tel Hashomer, Israel, 52621
- Chaim Sheba Medical Center
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Milan, Italy
- Ospedale San Raffaele
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Modena, Italy, 41124
- Azienda Ospedaliero-Universitaria Policlinico di Modena
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CN
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Cuneo, CN, Italy
- Azienda Sanitaria Ospedaliera S.Croce e Carle
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CT
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Catania, CT, Italy
- Azienda Ospedaliero-Universitaria Policlinico-Vittorio Emanuele
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FI
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Firenze, FI, Italy
- Azienda Ospedaliera Universitaria Careggi
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PA
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Palermo, PA, Italy
- Azienda Ospedaliera Ospedali Riuniti Villa Sofia - Cervello
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TO
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Torino, TO, Italy
- Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, Presidio Molinette
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UD
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Udine, UD, Italy
- Ospedale Santa Maria della Misericordia
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VR
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Verona, VR, Italy
- Policlinico G. B. Rossi, Azienda ospedaliera universitaria integrata di Verona
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Vilnius, Lithuania
- Santaros Klinikos
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Lisboa, Portugal
- Centro Hospitalar Lisboa Norte, E.P.E.
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Barcelona, Spain
- Hospital de la Santa Creu i Sant Pau
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L'Hospitalet De Llobregat, Spain
- Instituto Catalan de Oncologia
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Pamplona, Spain, 31008
- Hospital de Navarra
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Illinois
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Chicago, Illinois, United States, 60611
- Northwestern University Feinberg School of Medicine
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Missouri
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Saint Louis, Missouri, United States, 63110
- Washington University Medical School
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New Jersey
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Hackensack, New Jersey, United States, 07601
- John Theurer Cancer Center at Hackensack University Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age ≥ 18 years
Any of the following conditions:
- AML and ALL in 1st complete remission (CR1)
- AML and ALL in 2nd or subsequent CR
- secondary AML in CR
- AML and ALL in 1st or 2nd relapse or primary refractory
- Family donor with patient-donor number of HLA mismatches ≥ 2 (full haploidentical), or family donors sharing one HLA-haplotype with the patient
- Stable clinical conditions and life expectancy > 3 months
- PS ECOG < 2
- Serum creatinine < 1.5 x ULN
- Bilirubin < 1.5 x ULN; transaminases < 3 x ULN
- Left ventricular ejection fraction > 45%
- QTc interval < 450 ms
- DLCO > 50%
- Patients, or legal guardians, and donors must sign an informed consent indicating that they are aware this is a research study and have been told of its possible benefits and toxic side effects
Exclusion Criteria:
- Patients with life-threatening condition or complication other than their basic condition
- Contraindication to haploidentical HCT as defined by the Investigator
- Patients with active CNS disease
- Pregnant or lactation.
Exclusion criteria for HSV-Tk infusion:
- Infections requiring administration of ganciclovir or valganciclovir at the time of infusion
- GvHD requiring systemic immunosuppressive therapy
- Ongoing systemic immunosuppressive therapy after haploidentical HCT
- Administration of G-CSF after haploidentical HCT
HSV-Tk cells can be administered after an adequate patient wash-out period (24 hours)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: A
HSV-TK engineering donor Lymphocytes
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Infusion of approximately 1±0.2 x 10^7 HSV-Tk genetically modified CD3+ cells/Kg between day +21 and day +49 after haploidentical HCT; in absence of immune reconstitution and GvHD further infusions up to 4 will be administered on monthly basis.
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Active Comparator: B
T-cell depleted or T-cell replete strategies
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Haploidentical HCT with the infusion of CD34+ cells plus a fixed dose of T cells (1 x 10^4/Kg) or unmanipulated haploidentical stem cell transplantation followed by high-dose cyclophosphamide as part of GvHD prophylaxis
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Disease-free Survival (DFS)
Time Frame: From the date of randomization, assessed up to 12 months
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Defined as the measure from the date of randomization until the date of relapse (or progression), or death from any cause, whichever occurs first. Disease relapse or progression was determined by the Investigator based on the following disease examination:
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From the date of randomization, assessed up to 12 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Overall Survival (OS)
Time Frame: From the date of randomization to the date of death, assessed up to 12 months
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any death without previous occurrence of a documented relapse (or progression).Patients alive or without any follow up will be censored.
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From the date of randomization to the date of death, assessed up to 12 months
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Immune Reconstitution (IR)
Time Frame: Weekly up to IR after engraftment of HCT, monthly for 6 months from date of IR and then at month 9 and 12
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Assess how many patients experience IR. For the assessment, competing risk analysis was performed considering death, relapse, and disease progression as competing events. Patients who were still alive and had no recovery (IR) nor relapse (or progression) were censored.IR is defined as achieving a level of circulating CD3+ ≥ 100/μL for two consecutive observations. The following laboratory examinations are performed:
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Weekly up to IR after engraftment of HCT, monthly for 6 months from date of IR and then at month 9 and 12
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Engraftment Rate
Time Frame: At day 15 after HCT, monthly for 6 months after HCT and then at month 9 and 12
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Defined as the persistent blood cells count above predefined level.
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At day 15 after HCT, monthly for 6 months after HCT and then at month 9 and 12
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Cumulative Incidence of Grade 2, 3, or 4 Acute GvHD (aGvHD)
Time Frame: from the date of HCT until the date of the first occurrence of aGvHD, assessed up to 6 months
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Diagnosed and graded according to standard criteria. Grade 1: Skin: Stage 1-2: Rash on < 25% of skin or Rash on 25-50% of skin Liver: Stage 1-2: Bilirubin 2-3 mg/dl or Bilirubin 3-6 mg/dl Gastrointestinal: Stage 1-2: Diarrhoea > 500 ml/day or persistent nausea or Diarrhoea > 1000ml/day |
from the date of HCT until the date of the first occurrence of aGvHD, assessed up to 6 months
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Cumulative Incidence of Chronic GvHD (cGvHD)
Time Frame: From the date of HCT until the date of the first occurrence of cGvHD, assessed up to 12 months
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Diagnosed and graded according to standard NIH consensus criteria
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From the date of HCT until the date of the first occurrence of cGvHD, assessed up to 12 months
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Duration of GvHD Episodes
Time Frame: From the date of start until the date of resolution and duration of immunosuppressive treatments administered for controlling GvHD assessed up to 12 months
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Diagnosed and graded according to standard NIH consensus criteria
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From the date of start until the date of resolution and duration of immunosuppressive treatments administered for controlling GvHD assessed up to 12 months
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Cumulative Incidence of Relapse (CIR)
Time Frame: from the date of randomization to the date of the first occurrence of relapse, assessed up to 12 months
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Defined on the basis of morphologic evidence of leukaemia in bone marrow or other sites.
Gray's test was used to compare the sub-distribution functions of relapse (or progression) events in the two treatment groups.
Patients alive without relapse (or regression) will be censored
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from the date of randomization to the date of the first occurrence of relapse, assessed up to 12 months
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Incidence and Duration of Infectious Episodes and Infectious Disease Mortality
Time Frame: From randomization to the date of resolution, assessed up to 12 months
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Diagnosis, monitoring and treatment of infectious relevant events
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From randomization to the date of resolution, assessed up to 12 months
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Evaluate the Acute and Long-term Toxicity Related to the HSV-Tk Infusions
Time Frame: From HSV-Tk infusions to the date of resolution, assessed up to 12 months
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Toxicity profile of HSV-Tk infusions
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From HSV-Tk infusions to the date of resolution, assessed up to 12 months
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Quality of Life (QoL) and Medical Care Utilization (MCU) in Both Arms
Time Frame: from randomization up to 12 months
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Medical resource use data collected will be used in health economic analyses where it may be combined with other data from other sources such as cost data or other clinical parameters.
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from randomization up to 12 months
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Non-relapse Mortality (NRM)
Time Frame: From the date of randomization to the date of death, assessed up to 12 months.
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Defined for all patients as any death without previous occurrence of a documented relapse (or progression). Absence of relapse was determined by the Investigator based on the following disease examination:
Gray's test was used to compare the sub-distribution functions of the death without previous relapse (or progression) and relapse (or progression) events in the two treatment groups. |
From the date of randomization to the date of death, assessed up to 12 months.
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- TK008
- 2009-012973-37 (Registry Identifier: EUdraCT number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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