What is Personalised Medicine? Examples, Benefits and Diagnostics in India

Personalised medicine — also called precision medicine — is a medical approach that tailors prevention, diagnosis, and treatment to the individual's unique genetic makeup, lifestyle, and environment rather than applying the same protocol to every patient. The primary sign that standard treatment may not be working is a lack of improvement despite medication, which can often signal that a more personalised diagnostic approach is needed. This shift from population-based medicine to individual-centred care is one of the most significant developments in modern healthcare globally — and it is becoming increasingly relevant in India.

What is Personalised Medicine?

Personalised medicine is a healthcare model in which clinical decisions, diagnostics, and treatments are customised to the individual patient based on their genetic profile, biomarkers, lifestyle data, and environmental factors — rather than relying solely on what works for the average population. It harnesses data on genes, proteins, gut microbiome, and metabolism to create a molecular picture of a patient's true health risk. This is fundamentally different from the traditional approach where a doctor prescribes the same first-line drug to everyone with the same diagnosis.

Related reading: how India is transitioning from a sickcare model to a proactive healthcare model, and what this means for patients in Pune and across Maharashtra.

Personalised Medicine Examples in Practice

Understanding personalised medicine examples makes the concept more concrete. Here are the most widely used and clinically validated applications today:

1. Pharmacogenomics — Matching Drugs to Your Genes

Pharmacogenomics is the study of how an individual's genetic variants affect their response to specific drugs. Certain patients carry gene variants (such as CYP2D6 or CYP2C19 polymorphisms) that make them metabolise drugs either too quickly or too slowly. This directly affects dosing and drug choice for common medications including antidepressants, blood thinners (warfarin), and certain cancer chemotherapy agents. Rather than trialling multiple drugs and waiting for side effects to emerge, a pharmacogenomic test can guide the prescribing physician from the outset.

2. Oncology and Targeted Cancer Therapy

Cancer treatment is where personalised medicine has had its most dramatic impact. Tumour genomic profiling identifies specific mutations — such as BRCA1/2, HER2 overexpression, or EGFR mutations — that drive tumour growth in a particular patient. Targeted therapies (trastuzumab for HER2-positive breast cancer, for example) attack only cells with those specific markers, reducing collateral damage to healthy tissue. This is a well-established example of precision oncology now available in major Indian hospitals and diagnostic centres.

3. Genetic Carrier Screening Before Pregnancy

Couples planning a family in India increasingly opt for genetic disorder screening to identify whether they carry variants linked to conditions such as thalassaemia, sickle cell anaemia, or spinal muscular atrophy. If both partners are carriers, the risk to the child is significantly elevated. Early knowledge enables informed reproductive decisions and appropriate antenatal care. healthcare nt sickcare offers related tests including Beta Thalassaemia Screening and Karyotyping Tests.

4. Metabolic and Hormonal Profiling

Two patients with the same body weight or the same fasting glucose reading can have very different underlying metabolic drivers. Advanced testing including HOMA-IR for insulin resistance, detailed hormonal imbalance panels, and metabolic profiles allow a clinician to identify the root cause — whether it is insulin resistance, cortisol dysregulation, or thyroid dysfunction — and personalise the intervention accordingly.

5. Microbiome-Guided Nutrition and Gut Health

Research into the gut microbiome has shown that individuals respond very differently to the same diet or probiotic supplement depending on their unique microbial composition. While routine clinical microbiome testing is still emerging in India, gut health testing is increasingly available and is being used to guide nutrition decisions in patients with irritable bowel syndrome, metabolic syndrome, and chronic inflammation.

The Emergence of Personalised Medicine in India

India presents a unique landscape for personalised medicine. The country has extraordinary genetic diversity — a product of thousands of years of distinct population groups — meaning that drug responses and disease susceptibilities in Indian patients do not always mirror findings from Western studies. The Indian Genome Variation Consortium and more recently the GenomeIndia project are building population-specific genomic databases to address this gap.

In practical terms, diagnostics that support personalised medicine are now accessible in Pune and other Indian cities through NABL-accredited and associated laboratories. Tests that were once confined to large research hospitals — such as pharmacogenomic panels, advanced autoimmune profiling, and hormonal biomarker panels — are now bookable online with home sample collection. This is a direct reflection of the broader shift described in our article on advancements in medical laboratory techniques.

How Personalised Diagnostics Work at healthcare nt sickcare?

At healthcare nt sickcare, an ISO 9001:2015 certified online medical laboratory in Pune, advanced diagnostic testing forms the foundation of personalised health decisions. Patients across Pune — including Baner, Aundh, Kothrud, Hinjewadi, Viman Nagar, and Koregaon Park — access these tests through our home sample collection facility or by visiting our direct walk-in facility. Reports are delivered by automated email within 6 to 48 hours of sample collection.

Key personalised diagnostic categories include:

• Genetic and chromosomal testing: Karyotyping, beta thalassaemia screening, factor V Leiden mutation, MTHFR mutation analysis, and Whole Exome Sequencing.
• Hormonal and metabolic profiling: Adrenal Function Profile, insulin and glucose panels, thyroid function, and Advanced Metabolic Profile.
• Autoimmune and immunology panels: ANA, anti-ds DNA, complement levels, and full immunology testing to identify immune-mediated conditions that may alter treatment choices.
• Oncology markers: Tumour marker panels for male and female cancers, supporting early detection conversations with an oncologist.

Understanding the difference between a medical laboratory and a clinical laboratory can help patients choose the right facility for personalised diagnostic testing.

Benefits of Personalised Medicine

The advantages of personalised medicine over standard care are well documented in clinical literature and increasingly validated in real-world practice:

• Greater treatment effectiveness: Targeting the right drug or intervention to patients who are genetically likely to respond improves outcomes and reduces the frustration of ineffective treatment cycles.
• Fewer adverse drug reactions: Pharmacogenomic testing reduces the incidence of serious side effects by identifying patients who metabolise drugs abnormally.
• Earlier disease prevention: Risk stratification based on genetic and biomarker data enables preventive interventions before symptoms develop — aligning with the philosophy of universal preventive healthcare.
• Reduced unnecessary healthcare spending: Avoiding drugs that will not work for a particular patient eliminates wasted expenditure on ineffective treatments and repeat consultations.
• Improved chronic disease management: Conditions such as diabetes, thyroid disorders, and hypertension respond very differently across individuals. Biomarker-guided management produces better long-term glycaemic, lipid, and blood pressure control.

Challenges Personalised Medicine Still Faces

Despite significant progress, personalised medicine faces real barriers that patients and healthcare systems must navigate:

• Genomic complexity: Most common diseases are polygenic — influenced by hundreds of gene variants and their interactions with environment and lifestyle. Predicting outcome from a single variant is rarely sufficient.
• Data privacy: Genetic data is among the most sensitive personal information. Robust frameworks are essential to protect individuals from misuse of their genomic data — a concern highlighted in discussions about health data governance in India.
• Accessibility and cost: Advanced genomic tests remain expensive and are not uniformly covered by health insurance in India. Affordable diagnostic access — as healthcare nt sickcare aims to provide — is critical to democratising precision medicine.
• Clinical translation lag: Research findings in genomics often take years to translate into clinical guidelines and standard practice, especially in lower- and middle-income healthcare settings.

Watch: Personalised Medicine and Diagnostic Testing Explained

Personalised Medicine and the Future of Healthcare in India

The trajectory of personalised medicine in India is upward. Government-backed genomic initiatives, falling sequencing costs, AI-assisted diagnostic interpretation, and increasing awareness among urban patients in cities like Pune, Mumbai, Bengaluru, and Hyderabad are collectively accelerating adoption. Wearable devices and digital health apps are adding continuous physiological data to the clinical picture, creating a richer dataset for personalised decision-making.

The evolution of India's healthcare system towards value-based and preventive care models creates an ideal environment for personalised medicine to flourish. For patients in Pune, this means that precision diagnostics are no longer reserved for research centres — they are available today through a trusted pathology laboratory with a proven quality record. According to the World Health Organization's genomics initiative, integrating genetic information into primary care represents a major opportunity for disease prevention in developing nations.

People Also Ask About Personalised Medicine

Take the Next Step with healthcare nt sickcare

Personalised medicine starts with knowing your own numbers. Explore our comprehensive health analysis packages, genetic disorder tests, and diagnostic test packages — all available in Pune with home collection or walk-in access. Read our test preparation guides before booking. For assistance, contact us at +91 9766060629.