CAR-T Cell Therapy: Challenges and Optimization.
Mei Luo, Hongchang Zhang, Linnan Zhu...
https://pubmed.ncbi.nlm.nih.gov/33822526/Actively Recruiting
Led by Baylor College of Medicine · Updated on 2026-01-05
64
Participants Needed
2
Research Sites
478 weeks
Total Duration
Researchers are studying patients with certain blood cancers, including Non-Hodgkin Lymphoma, acute lymphocytic leukemia, and chronic lymphocytic leukemia, whose disease has returned or not responded to previous treatments. The study aims to test new immune therapies that combine antibodies and T cells to better fight these cancers. This research focuses on specially modified T cells that carry a receptor targeting CD19, a protein found on cancer cells, with added proteins to improve their effectiveness and persistence in the body. Participants will provide blood samples to create these modified T cells in the lab, where a virus is used to insert genes that produce the CD19 receptor along with stimulating proteins CD28, with or without CD137. Patients will receive infusions of these T cells at different doses, and some may receive chemotherapy beforehand to reduce their existing T cells and improve treatment effectiveness. If initial treatment shows benefit after six weeks, additional infusions may be offered at regular intervals. During the study, patients will be closely monitored for side effects, how long the modified T cells last, and any signs of cancer response. Follow-up includes blood tests and clinical exams, with long-term monitoring for up to 15 years to detect any lasting effects of the gene therapy. The main goal is to find the highest safe dose and understand the treatments impact on the cancer and patient safety.
CONDITIONS
Activated T-Cells Expressing 2nd or 3rd Generation CD19-Specific CAR, Advanced B-Cell NHL, ALL, and CLL (SAGAN)
C
Carlos A Ramos, MD
M
Mahshid Azamian
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Baylor College of Medicine
Lead Sponsor
Center for Cell and Gene Therapy, Baylor College of Medicine
Collaborating Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | Investigational CD19 CAR‑T therapy | Standard‑of‑care context |
|---|---|---|
| What it is | A dose‑escalation and expansion study of CD19‑specific CAR‑T cells using CD28ζ and CD28/4‑1BBζ constructs to treat relapsed or refractory CD19‑positive B‑cell leukemia or lymphoma. | Approved targeted therapies such as BTK inhibitors or BCL‑2 inhibitor regimens for CLL/SLL, and CAR‑T or autologous stem cell transplantation for relapsed/refractory NHL. |
| How it is used | Infused as experimental therapy following lymphodepleting chemotherapy in patients with relapsed or refractory CD19‑positive B‑cell malignancies. | Used as standard salvage or consolidation therapies to induce remission in relapsed or refractory disease. |
| Evidence status | Evidence limited to early‑phase trial data; dosing and safety under evaluation. | CAR‑T and transplant are established second‑line options in guideline‑based practice; targeted agents offer effective disease control in CLL/SLL. |
| Important limitations | Safety and optimal dose not yet established; small and heterogeneous patient groups included. | Selected therapies may not apply to all disease types and patient characteristics; eligibility and toxicity profiles vary. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
You may qualify if you...
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Initial infusion plus up to five additional doses over several months, with at least 6 weeks before the first repeat infusion and at least 4 weeks between subsequent infusions
Participants receive an infusion of CD19 CAR T cells at an assigned dose. Some participants may receive chemotherapy before infusion to reduce their own T cells. After the first infusion, participants may receive up to five additional infusions if they show benefit, with intervals of at least 6 weeks before the first repeat and 4 weeks between subsequent doses.
1 infusion visit with up to 3 hours of observation after each infusion; additional infusion visits spaced by at least 4 to 6 weeks
Duration - Up to 15 years
Participants are followed for up to 15 years to monitor for long-term side effects of gene transfer and to assess the survival and function of the infused T cells.
Periodic visits or contacts by research staff over 15 years; some visits may be remote
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
SINGLE_GROUP
Primary Purpose
TREATMENT
Number of Arms
4
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Mei Luo, Hongchang Zhang, Linnan Zhu...
https://pubmed.ncbi.nlm.nih.gov/33822526/Baylor College of Medicine
Lead Sponsor
Center for Cell and Gene Therapy, Baylor College of Medicine
Collaborating Sponsor