Clinical trial for Sickle Cell Anemia
Official title T-Cell Depleted Alternative Donor Bone Marrow Transplant for Sickle Cell Disease (SCD) and Other Anemias
ClinicalTrials.gov ID: NCT03653338
What this study is testing
What is CD3/CD19 depleted leukocytes?
An investigational cell therapy being studied for sickle cell anemia and other transfusion‑dependent anemias.
Plain-language explanation of the investigational treatment. It is being studied and is not an approved or proven therapy. The study team can confirm the details.
- What it's testing
- The study wants to see if a transplant from a mismatched volunteer or related donor can help people with sickle cell disease, beta‑thalassemia major, or Diamond‑Blackfan anemia. It also checks if removing T‑cells from the transplant reduces transplant complications.
- Who it's for
- It is looking for adults who have one of the listed anemias and need a stem cell transplant.
- What's involved
- Participants will receive a bone marrow transplant from a mismatched donor that has had its T‑cells removed. They will have regular medical visits and tests to monitor the transplant and any side effects.
- Time commitment
- The study lasts about 2–3 years, with frequent visits in the first months after transplant and then less often over time.
- Phase 2: a mid-size study of how well it works
A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.
Who can take part
Ages 5 to 40
You may be able to join if
- 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.
- Recurrent acute painful episodes (also known as vaso-occlusive crises
- 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
You likely can't join if
- 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...
- 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...
See the full eligibility 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.
- 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.
- 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...
- 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...
- 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.
- people 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...
- 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
- 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...
The study team makes the final eligibility decision.
Where it is enrolling
- Pittsburgh, Pennsylvania, United States
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part, but confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, 5 years to 40 years. The study team makes the final eligibility decision.
Where is this trial taking place?
This study is enrolling now at Pittsburgh, Pennsylvania, United States. Enter your location above to see the nearest enrolling site and check your eligibility.
Explore other conditions
BridgeMD is an information and trial-matching tool that is independent of the study sponsor. Details come from ClinicalTrials.gov. The study team decides eligibility, and your own doctor gives medical advice.