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CAR T-Cell Therapy in India: Procedure, Types, Benefits & Challenges

Last Updated on Mar 19, 2025
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CAR T-cell therapy is an innovative form of immunotherapy, wherein the patient's T cells are genetically modified to enable them to recognize cancer cells and destroy them accordingly. It is a kind of body-powerful treatment in the sense that it reprograms one's T cells to seek specific proteins found on cancer cells. It marks the latest advancement in treatment that gives hope when standard treatments have failed.

CAR T-Cell Therapy is under the 'Science and Technology' section of General Studies Paper III. It is absolutely essential that aspirants develop an understanding of the working principles, applications as well as the ethical dimensions of such advanced medical technology, as a way to keep abreast with the current developments in this field of healthcare and biotechnology.

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GS Paper

General Studies Paper III

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Cancer

Topics for UPSC Mains

Healthcare in India, Role of biotechnology in medicine

Latest News on CAR T-cell Therapy in India

A first-of-its-kind clinical trial in India has found that CAR T-cell therapy, a new cancer treatment, has been effective for 73% of the patients, mostly those with blood cancers such as acute lymphoblastic leukemia and large B-cell lymphomas. The trial, which was released in The Lancet, is India's first CAR T-cell therapy study to be recognized on the global platform. The therapy, which employs the use of the patient's immune cells against cancer to destroy it, is currently offered at various Indian hospitals. Significantly, the therapy is provided at a fraction of what other similar therapies cost across the world, thus making it more affordable to Indian patients. Although with very encouraging results, some severe side effects such as immune complications were reported.

What is CAR T-Cell Therapy?

Chimeric Antigen Receptor T-Cell Therapy is the CAR T-cell therapy full form. It represents one of the most revolutionary breaks in cancer treatment. Immunotherapy is a way of treating patients using the patient's body immune system. It involves gene modification of T-cells to express chimeric antigen receptors, which enables the targeting and destruction of cancer cells. CAR T-cell therapy has shown a fantastic promise for the treatment of various haematologic malignancies such as ALL and NHL, with remarkable response rates. The field, however, remains expanding in terms of applications of the therapy to other malignancies, even including the potentially less benign ones like solid tumours. Despite its costliness and complexity, further development in research and clinical trials aim to enhance its access and effectiveness, making for an encouraging future in this cutting-edge cancer therapy approach.

CAR T-Cell Therapy in India

CAR T-cell therapy is an emerging field with immense potential in India to transform the treatment of cancer. The country has seen promising developments, including research collaborations and clinical trials aimed at making this therapy accessible to more patients. Notably, institutes like Tata Memorial Centre in Mumbai and several biotech companies are spearheading such initiatives. Still, widespread implementation faces challenges, including high costs, infrastructural needs, and the requirement for specialized medical expertise.

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Procedure of CAR T Cell Therapy in India

The entire process of CAR T-cell therapy includes the following steps:

  • Collection: The T-cells in the patient's blood can be collected using a procedure known as leukapheresis.
  • Modification: The chosen T-cells are then modified in a lab to express CARs by targeting antigens found in cancer cells.
  • Expansion: The engineered T-cells are expanded in the laboratory to a large number so that there is sufficient quantity prior to treatment.
  • Infusion: The engineered T-cells are infused into the patient's circulation, wherein they expand and identify cancerous cells to destroy them.
  • Follow-up and Monitoring: The patients will be monitored closely for therapeutic responses and adverse effects of the treatment, such as CRS and neurotoxicity.

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Types of CAR T-Cell Therapy

CAR T-cell therapy can be classified into different types based on the generation of CARs used:

  • First-Generation CARs: These CARs have a single signaling domain for T-cell activation. Although they are successful, they have been less efficient in persistent responses due to a failure in T-cell survival and proliferation.
  • Second-generation CARs: With an added costimulatory domain, such as CD28 or 4-1BB, these CARs enhance the proliferation, persistence, and therapeutic efficacy of the T-cells.
  • Third-generation CARs: These have multiple costimulatory domains, which further enhances the T-cell functions than that of second-generation CARs.
  • Fourth-generation (TRUCKs): T-cells Redirected for Universal Cytokine Killing (TRUCKs) target not only the cancer cells but also deliver immune-modulating agents directly to the tumor microenvironment, enhancing the immune response.

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Benefits of CAR T-Cell Therapy

CAR T-cell therapy has the following significant advantages:

  • Personalized Treatment: The treatment is tailored to the patient's unique cancer profile to ensure targeted and effective intervention.
  • High Efficacy: It is highly effective in treating specific hematologic cancers, such as ALL and non-Hodgkin lymphoma, with remission rates that were never achieved before the therapy.
  • Long-Term Remission: Patients have shown long periods of remission, which improved survival rates and quality of life significantly.
  • Potential for Broad Applications: Studies are in place to expand the scope of CAR T-cell therapy into solid tumors and other cancer types.

Read the article on the Most Common Health Issues in India!

Challenges of CAR T-Cell Therapy

Despite its promise, CAR T-cell therapy comes up against several challenges:

  • Cost: The treatment is expensive. The CAR T-Cell Therapy costs $400,000 per patient in the United States. In India, too, the cost is exorbitant, and not everybody has access to this therapy.
  • Side Effects: Some very serious adverse effects occur such as cytokine release syndrome or CRS and neurological events that require immediate and intensive management.
  • Infrastructure and Resources: CAR T-cell therapy requires sophisticated medical infrastructure and training, and such is not readily available in most regions.
  • Process of Manufacture and Scale-up: The process involved in the manufacture is cumbersome and time consuming, which gives a challenge in scaling up according to the number of patients.

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Way Forward

Implementation of CAR T-cell therapy in India requires a multi pronged approach:

  • Policy Support and Funding: Government policy should encourage research and development and subsidize the product to make it more easily accessible.
  • Infrastructure Development: Health care infrastructure and continuing education for healthcare professionals
  • Public-Private Partnerships: Government authorities, the private health service providers and biotech organizations can share the burden of research and execution.
  • Continued Research: Continuation research in order to enhance efficiency and minimize CAR T-cell therapy side effects, not only in lymphomas and leukemias but also with solid tumors.

An understanding of the advantages and risks of CAR T-cell therapy will make better informed choices for healthcare providers and patients.

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Key Takeaways on CAR T-Cell Therapy for UPSC Aspirants

  • Definition: CAR T cell therapy is an advanced version of immunotherapy wherein a patient's T cells are genetically modified in the laboratory to attack cancerous cells.
  • Mechanism: Extract T cells, modify them to express chimeric antigen receptors (CARs), and infuse them back into the patient.
  • Clinical Success: Acute lymphoblastic leukemia and non-Hodgkin lymphoma are examples of some of the blood cancers that have been cured of certain types.
  • Personalized Treatment: It is an example of personalized medicine, where treatment depends on the specific genetic profile of the cancer in the patient.

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CAR T-Cell Therapy UPSC FAQs

If CAR T-cell therapy does not work, the cancer may come back, and doctors may need to consider other treatment options, including other immunotherapies, chemotherapy, or a clinical trial of a new treatment.

CAR T-cell therapy involves changing a patient's T-cells so they become better at recognizing and killing cancer cells. This would offer an opportunity for very targeted and effective treatment in specific cancers.

T-cell therapy typically refers to therapies employing T-cells in the treatment of diseases; it could either be unmodified T-cells or allogeneic T-cells from a donor. CAR T-cell therapy refers to the genetic modification of the patient's T-cells to express CARs targeting the cancer cells directly.

Currently, this therapy is most effective for only a few types of blood cancers, such as ALL and non-Hodgkin lymphoma. Further research is underway to establish the feasibility of this treatment for solid tumors.

Patients receiving CAR T-cell therapy could feel its positive impact between a few weeks after infusion. But patients will remain in close follow-up to manage any side effects and also the response.

Chimeric Antigen Receptor T-cell therapy.

The cost of CAR T-cell therapy in India varies but is usually on the higher side, sometimes even in lakhs of rupees, which means that this therapy may not be within everyone's budget.

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