- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03653338
T-Cell Depleted Alternative Donor Bone Marrow Transplant for Sickle Cell Disease (SCD) and Other Anemias
T-Cell Depleted, Alternative Donor Transplant in Pediatric and Adult Patients With Severe Sickle Cell Disease (SCD) and Other Transfusion-Dependent Anemias
Study Overview
Status
Detailed Description
CD3/CD19 depletion of mismatched donor grafts in the setting of reduced intensity, immune-ablative conditioning for patients with sickle cell disease and other transfusion-dependent anemias should sufficiently achieve engraftment while decreasing the incidence of treatment-related toxicities and achieving an acceptable incidence of graft versus host disease. Utilizing mismatched unrelated volunteer donors and haploidentical related donors will increase the number of patients able to undergo hematopoietic stem cell transplant (HSCT) for these diseases. Additionally, the institutional availability of virus-specific, donor-derived cytotoxic T lymphocytes should address complicated viral infections refractory to standard anti-viral therapy.
The purpose is to:
- To provide alternate donor transplantation from cryopreserved stem cell grafts that are fully characterized for safety and potency to patients with severe sickle cell disease, beta-thalassemia major, or Diamond-Blackfan anemia who do not have matched sibling donor, matched unrelated donor or cord blood donor options.
- To utilize a reduced-intensity conditioning regimen to achieve minimal treatment-related morbidity and mortality while attaining sustained donor engraftment and donor chimerism >20% in order to rescue disease phenotype, specifically in SCD patients.
- To utilize ex-vivo T-cell depletion methods to prevent graft-versus-host disease in the setting of mismatched donor transplantation.
- To utilize additional donor cell products to ensure sufficient immune reconstitution in the immediate post-transplant period, to improve mixed chimerism or provide non-specific anti-viral activity in patients with virus reactivation in the post-transplant period.
- To utilize calcineurin inhibitor-free regimen in an effort to minimize/prevent central nervous system toxicity
Study Type
Enrollment (Estimated)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Contact
- Name: Paul Szabolcs, MD
- Phone Number: 412-692-6225
- Email: paul.szabolcs@chp.edu
Study Contact Backup
- Name: Shawna McIntyre, RN
- Phone Number: 412-692-5552
- Email: mcintyresm@upmc.edu
Study Locations
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Pennsylvania
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Pittsburgh, Pennsylvania, United States, 15224
- Recruiting
- Children's Hospital of Pittsburgh of UPMC
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Principal Investigator:
- Paul Pszabolcs, MD
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria
- Patient, parent, or legal guardian must have given written informed consent and/or assent according to FDA guidelines.
- Ages 5 years to 40 years, at time of consent.
Diagnosis of Sickle Cell Disease (Hemoglobin SS, Sβ0-thalassemia) complicated by any of the following:
- Recurrent acute painful episodes (also known as vaso-occlusive crises; VOC) despite supportive care, minimum of 2 new pain events per year requiring hospitalization for parenteral pain management in the previous 2 years.
- Recurrent acute chest syndrome (ACS) despite supportive care, minimum of 2 episodes in preceding 2-year period.
- Stroke or neurologic event lasting > 24 hours with an accompanying infarct on MRI in any patient for all ages; Brain MRI with silent infarct without clinical event in patients ≤ 16 years.
- Chronic transfusion therapy defined as > 8 packed red blood cell transfusions per year in the year prior to enrollment and/or evidence of red blood cell alloimmunization.
- Elevated transcranial Doppler velocities - > 200 cm/s, via the non-imaging technique or > 185 cm/s by the imaging technique measured on 2 separate occasions ≥ 1-month apart
- Elevated TRV > 2.6m/s in patients ≥ 16 years old.
- Sickle-related renal insufficiency and/or sickle hepatopathy and/or any irreversible end-organ damage in patients ≥ 16 years old.
OR Diagnosis of beta-thalassemia or Diamond-Blackfan anemia complicated by transfusion dependence with evidence of iron overload.
- A minimum donor match of 4/8 via high resolution HLA typing at HLA-A, -B, -C, -DRB1 loci in the related setting or minimum donor match of 6/8 via high resolution HLA typing at HLA-A, -B, -C, -DRB1 loci (with the DRB1 locus as a full match requirement). An unrelated donor and cord blood search must have been completed without an eligible 8/8 matched unrelated donor or 6/8 cord blood unit available. Patients who may have acceptable cord blood donor options (4/6 or better) but are limited by cell dose of a single cord will also be eligible for the proposed study.
Adequate function of other organ systems as measured by:
- Creatinine clearance or GFR ≥ 45 ml/min/1.73m.
- Hepatic transaminases (ALT/AST) ≤ 3 x upper limit of normal.
- Liver MR imaging for iron content should be performed in all patients with Ferritin > 500 ng/mL. If hepatic iron content > 10mg Fe/g liver should have hepatology consultation and liver biopsy to confirm absence of cirrhosis, fibrosis or hepatitis.
- Adequate cardiac function as measure by echocardiogram (shortening fraction > 26% or ejection fraction > 40% or >80% of age-specific normal).
- Pulmonary evaluation testing demonstrating FEV1/FVC ≥ 60% of predicted for age and/or resting pulse oximeter ≥ 92% on room air.
- Cardiology clearance to proceed with conditioning regimen and HSCT.
- Pulmonology clearance to proceed with conditioning regimen and HSCT.
- Subjects must be human immunodeficiency virus (HIV) negative by PCR.
- Negative pregnancy test for females ≥10 years old or who have reached menarche, unless surgically sterilized.
- All females of childbearing potential and sexually active males must agree to use an FDA approved method of birth control for up to 24 months after BMT or for as long as they are taking any medication that may harm a pregnancy, an unborn child or may cause a birth defect.
- Subject and/or parent guardian will also be counseled regarding the potential risks of infertility following BMT and advised to discuss sperm banking or oocyte harvesting (Refer to section,
- Hydroxyurea must have been trialed and failed in patients with sickle cell disease.
Patient Exclusion Criteria
- Patients with alternate, superior donor options (matched sibling donor or matched unrelated donor).
- Patients who have undergone stem cell transplantation in the 6 months prior to anticipated conditioning.
- Patients with history of a central nervous system (CNS) event within six months prior to start of conditioning (patient will be delayed until eligible).
- Patients who are pregnant or lactating
- Patients with uncontrolled bacterial, viral or fungal infection
- Past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with the participant's ability to comply with study requirements or that may impact the quality or interpretation of the data obtained from the study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Hematopoietic Stem Cell Transplantation
All patients will receive a CD3+/CD19+ depleted stem cell transplant. In this study, the investigators will use HLA mismatched unrelated or haploidentical related donor peripheral blood stem cells. Prior to transplantation, the marrow (90-95%) will be negatively selected for CD3/CD19 using the ClinicMACs® depletion device. The remaining (5-10%) will undergo CD45+RA+ depletion and be frozen for future use as an immune boost. Subjects will undergo hematopoietic stem cell transplant utilizing CD3+/CD19+ depleted cells following conditioning therapy. |
Negative selection for CD3+/CD19+ cells will be performed on the CliniMACS® depletion device.
Negative selection for CD45RA will be performed on the CliniMACS® depletion device.
Sickle Cell Disease Conditioning
Other Names:
Sickle Cell Disease Conditioning
Other Names:
Sickle Cell Disease Conditioning
Other Names:
Sickle Cell Disease Conditioning
Other Names:
Sickle Cell Disease Conditioning
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Graft rejection
Time Frame: Day -30 through study completion, an average of 2 years
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How frequent, if any, graft rejection occurs
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Day -30 through study completion, an average of 2 years
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Post Transplant treatment related mortality
Time Frame: By day 100
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Number of deaths that occurred from treatment
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By day 100
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Acute Graft versus host disease
Time Frame: Day 0 through study completion, an average of 2 years
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The number of patients who develop acute graft versus host disease (GVHD)post transplant
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Day 0 through study completion, an average of 2 years
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Chronic Graft versus host disease
Time Frame: Day 0 through study completion, an average of 2 years
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The number of patients who develop chronic graft versus host disease (GVHD) post transplant
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Day 0 through study completion, an average of 2 years
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Post Transplant treatment related mortality
Time Frame: Day 180
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Number of deaths that occurred from treatment
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Day 180
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Post Transplant treatment related mortality
Time Frame: 1 year
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Number of deaths that occurred from treatment
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1 year
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Neutrophil recovery
Time Frame: Day 0 through study completion, an average of 2 years
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≥ 0.5 x 103/μL neutrophils for three consecutive days tested on different days.
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Day 0 through study completion, an average of 2 years
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Donor Cell Engraftment
Time Frame: From Day 0, Day 42, Day 100 and Day 180. Further testing can be done if clinically indicated up to 2 years post transplant
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≥ 5% donor cells on day +42 and ≥ 10% donor cells on day +100.
We will record if subjects have attained robust donor cell engraftment (> 50% donor chimerism at 180 days).
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From Day 0, Day 42, Day 100 and Day 180. Further testing can be done if clinically indicated up to 2 years post transplant
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Neurological complications
Time Frame: Day 0 through study completion, an average of 2 years
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To evaluate the incidence of neurological complications
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Day 0 through study completion, an average of 2 years
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Immune reconstitution
Time Frame: Day 0 through study completion, an average of 2 years
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The pace of systemic immune reconstitution
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Day 0 through study completion, an average of 2 years
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Cytomegalovirus (CMV) infection
Time Frame: Day 0 through study completion, an average of 2 years
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Incidence of CMV infection by Polymerase chain reaction (PCR) as clinically indicated
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Day 0 through study completion, an average of 2 years
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Donor Lymphocyte Infusions response
Time Frame: Day 0 through study completion, an average of 2 years
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Evaluate for delayed immune reconstitution, mixed chimerism or viral reactivation
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Day 0 through study completion, an average of 2 years
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Response to donor-derived virus-specific cytotoxic T-cell therapy
Time Frame: Day 0 through study completion, an average of 2 years
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Activation or reactivation of Cytomegalovirus (CMV), Epstein-Barr Virus (EBV) or adenovirus testing by PCR
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Day 0 through study completion, an average of 2 years
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Sickle Cell disease phenotype recurrence
Time Frame: Day 0 through study completion, an average of 2 years
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The incidence of Sickle Cell recurrence as clinical evidence of vaso occlusive crisis, detection of HgbS>25% and acute chest syndrome.
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Day 0 through study completion, an average of 2 years
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Recurrence of transfusion-dependence
Time Frame: Day 0 through study completion, an average of 2 years
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Chronic transfusion therapy defined as > 8 packed red blood cell transfusions per year in the year prior to enrollment and/or evidence of red blood cell alloimmunization.
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Day 0 through study completion, an average of 2 years
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Organ toxicity
Time Frame: Day 0 through study completion, an average of 2 years
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Incidence of Grade 3-4
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Day 0 through study completion, an average of 2 years
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Long-term complications-Sterility, endocrinopathy, and secondary malignancy
Time Frame: Day 0 through study completion, an average of 2 years
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Incidence of long term complications
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Day 0 through study completion, an average of 2 years
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Pediatric Quality of Life Inventory
Time Frame: Baseline through study completion, an average of 2 years
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Measures Pain/Hurt ,Pain Impact,Pain Management/Control ,Worry ,Emotions ,Treatment , Communication
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Baseline through study completion, an average of 2 years
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Platelet Recovery
Time Frame: Day 0 through study completion, an average of 2 years
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Platelet count of ≥ 20,000/μL without platelet transfusion in the previous 7 days.
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Day 0 through study completion, an average of 2 years
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Adult Sickle Cell Quality of Life Measurement System (ASCQ)
Time Frame: Baseline through study completion, an average of 2 years
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Patient reported outcome measurement system that assesses the physical, social and emotional impact of Sickle Cell Disease.
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Baseline through study completion, an average of 2 years
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Paul Szabolcs, MD, University of Pittsburgh
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Bone Marrow Diseases
- Hematologic Diseases
- Genetic Diseases, Inborn
- Anemia, Hemolytic, Congenital
- Anemia, Hemolytic
- Hemoglobinopathies
- Anemia, Hypoplastic, Congenital
- Anemia, Aplastic
- Congenital Bone Marrow Failure Syndromes
- Bone Marrow Failure Disorders
- Red-Cell Aplasia, Pure
- Anemia
- Anemia, Sickle Cell
- Thalassemia
- beta-Thalassemia
- Anemia, Diamond-Blackfan
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Nucleic Acid Synthesis Inhibitors
- Enzyme Inhibitors
- Antirheumatic Agents
- Antineoplastic Agents
- Immunosuppressive Agents
- Immunologic Factors
- Antineoplastic Agents, Alkylating
- Alkylating Agents
- Myeloablative Agonists
- Antineoplastic Agents, Immunological
- Antisickling Agents
- Rituximab
- Fludarabine
- Hydroxyurea
- Thiotepa
- Alemtuzumab
Other Study ID Numbers
- STUDY19050050
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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