What is CAR-T?
CAR-T is a type of treatment in which a patient's T cells (a
type of immune system cell) are changed in the laboratory so they will attack
cancer cells. T cells are taken from a patient’s blood. Then the gene for a
special receptor that binds to a certain protein on the patient’s cancer cells
is added to the T cells in the laboratory. The special receptor is called a
chimeric antigen receptor (CAR). Large numbers of the CAR T cells are grown in
the laboratory and given to the patient by infusion. CAR T-cell therapy is used
to treat certain blood cancers, and it is being studied in the treatment of
other types of cancer. Also called chimeric antigen receptor T-cell therapy.
What is the Potential
Mechanisms of CAR-T Cell-Mediated Toxicity?
Significant progress has been made in the field of cancer
immunotherapy, and CAR-T cells have shown outstanding efficacy in clinical
trials. As with all technologies, CAR-T technologies also need to go through a
long process of development, and CAR-T cell therapy has related acute and
chronic toxicities that have become a roadblock on the developmental path. If
these setbacks are not overcome, it will be difficult to make a more
significant breakthrough.
What is Cytokine
Release Syndrome?
Cytokine release syndrome (CRS) is the most common toxic
side effect in CAR-T cell therapy. CRS is a systemic inflammatory response
caused by the significant increase in cytokines accompanied by the rapid in
vivo activation and proliferation of CAR-T Drugs cells, usually occurring within a
few days after the first infusion. CRS is a clinical condition with mild
symptoms of fever, fatigue, headache, rash, joint pain, and myalgia. Severe CRS
cases are characterized by tachycardia, hypotension, and high fever. Mild to
moderate CRS is usually self-limiting and can be managed through close
observation and supportive care. Severe CRS must be treated with tocilizumab or
steroids alone for intensive treatment.
Advances in Research of CAR-T Cell Therapy for Solid
Tumors
Although early CAR-T cell trials of solid tumors did not
show the same success as observed in leukemia trials, a better understanding of
the multiple barriers seen in solid tumors could promote the design of clinical
trials for CAR-T cells. In this early stage of clinical development, CAR-T
cells offer much hope. The ability of genetic manipulation techniques to modify
CAR-T cells provides almost unlimited opportunities for other changes and
improvements, thus providing a strong desire for future success.
What is Global Landscape of CAR-T Cell Therapy?
At present, CAR-T cells are widely used in cellular
immunotherapy for various tumors. According to statistics, more than 300
clinical trials of CAR-T cell therapies have been approved by many national
drug regulatory agencies, including the FDA of the United States. Statistical
data from these clinical trials show that although the effects of various
clinical trials vary due to the use of different sources and the preparation
techniques of CARs and T cells, as well as differences in pretreatment and
combinations of drugs, overall, CAR-T cells are effective in treating tumors
with an effective rate of 30% to 70% or even more than 90%. For example, the
complete remission rate for r/r ALL treated with the Novartis drug CTL0l9,
which the FDA has approved, is 93%. Perhaps CAR-T cell therapy will ultimately
remedy the fate of human cancer.
What are CAR-T Pipeline Drugs Chapters?
This segment of the CAR-T report encloses its detailed
analysis of various drugs in different stages of clinical development,
including phase II, I, preclinical and Discovery. It also helps to understand
clinical trial details, expressive pharmacological action, agreements and
collaborations, and the latest news and press releases.
What are the CAR-T Emerging Drugs?
- MB-101: Mustang Bio
- JNJ-68284528: Janssen Research &
Development, LLC
- MB-CART20.1: Miltenyi Biomedicine GmbH
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