Cancer remains a significant healthcare challenge in India. Cancer burden in India is projected to rise from 26.7 million in 2021 to 29.8 million by 2025. Lung, breast, oesophagus, mouth, stomach, liver and cervix cancers are the top culprits, making up over 40 per cent of all cancer cases. Traditional treatment approaches, like chemotherapy and radiation therapy, while effective, often come with harsh side effects. However, a revolutionary approach - Precision Medicine, is changing the landscape of cancer care in India and around the world.
Precision Medicine: Tailoring Treatment to the Individual
Unlike the "one-size-fits-all" approach of conventional treatments, precision medicine personalises cancer care based on the unique genetic makeup of a patient's tumour. This involves advanced genetic testing to identify specific mutations or abnormalities driving the cancer's growth.With this information, doctors can select targeted therapies that attack these vulnerabilities, maximising effectiveness while minimising side effects.
The Promise of Precision Medicine in India
India's growing healthcare sector is embracing precision medicine. Several leading hospitals and research institutions are actively involved in this field. Here's how it holds promise for Indian cancer patients:
Improved Treatment Outcomes: Precision medicine offers the potential for significantly improved treatment outcomes. By targeting the specific mutations behind cancer, these therapies can be more effective in shrinking tumours and extending survival rates. For instance, a targeted therapy for a specific lung cancer mutation might show better results than traditional chemotherapy for some patients.
Reduced Side Effects: Conventional treatments often cause debilitating side effects due to their broad impact on healthy cells. Precision medicine, by focusing on the cancer's specific vulnerabilities, can potentially minimize these side effects, leading to a better quality of life for patients during treatment.
Early Detection and Risk Stratification: Genetic testing can also help identify individuals at higher risk of developing certain cancers due to inherited mutations. Early detection through such testing allows for preventive measures and earlier intervention, potentially improving long-term outcomes.
Challenges and Considerations
While the potential of precision medicine is undeniable, there are challenges to consider:
Cost: Advanced genetic testing and targeted therapies can be expensive. Ensuring accessibility for a wider patient population remains a concern in India's multi-tiered healthcare system.
Infrastructure: Implementing precision medicine requires robust healthcare infrastructure, including access to specialised laboratories and trained medical professionals who can interpret genetic data and recommend appropriate targeted therapies.
Awareness: Raising awareness among both patients and healthcare professionals about precision medicine is crucial for its wider adoption.
Looking Ahead: A Collaborative Effort
Despite the challenges, India is well-positioned to make significant strides in precision medicine. Several initiatives are underway, including:
Government Initiatives: The Department of Biotechnology (DBT) has launched programs to support research and development in precision oncology.
Public-Private Partnerships: Collaboration between government bodies, research institutions, and private healthcare providers is crucial for making precision medicine accessible to a larger population.
Clinical Trials: Encouraging clinical trials involving targeted therapies specifically tailored to the Indian population's genetic makeup will be vital for advancement.
Precision medicine offers a beacon of hope in the fight against cancer. By leveraging India's growing healthcare expertise and collaborative efforts, this approach has the potential to transform cancer care, leading to improved patient outcomes, reduced side effects, and ultimately, a brighter future for those battling this disease.
The author is Chairman, Medical Oncology, Medanta, Gurugram.