Head of CRC, , Hospital Kuala Lumpur 

Email: drmuthuk@moh.gov.my

BSc (Medsc), MD (UPM), MCO (UM), AM (Mal)

Areas of interest

1. Clinical Oncology
   Pulmonary Oncology
   Genito-urinary Oncology
   Neuro-Oncology (Stereotactic Radiation)
   Paediatric Radiation Oncology
   Musculoskeletal Oncology
2. Value Based Medicine and Health Systems Research

Awards and achievement

• Ahli Mangku Negara (A.M.N.) 2023
• Anugerah Perkhidmatan Cemerlang 2018

(a) Mau EP, Chai CS, Liam CK, Thiagarajan M, et al. Does dose reduction of afatinib affect treatment outcomes of patients with EGFR-mutant metastatic non-small cell lung cancer in real-world clinical practice? (2024); Translational Lung Cancer Research 13(2):307-320

(b) Anderson AC, Flores J, Obciana D, Thiagarajan M, et al. Contouring Practices and Educational Priorities in Southeast Asia: Results from a SEAROG Survey (2024); Radiotherapy and Oncology 197(supp1):S118-119

(c) Zhu H, Chua MLK, Chitapanarux I, Thiagarajan M, et al. Global Radiotherapy Demands and Corresponding Medical Professional Workforce Requirements (2024); Radiotherapy and Oncology 197(supp1):S127-132

(d) Zhu H, Chua MLK, Chitapanarux I, Thiagarajan M, et al. Global Radiotherapy Demands and Corresponding Medical Professional Workforce Requirements (2024); The Lancer Global Health 12(12): e1945-e1953

(e) Bujang N, Danaee M, Kong YC, Thiagarajan M, et al. Supportive Care Needs of Individuals With Colorectal Cancer in a Low- and Middle-Income Setting: Implications for Advancing Patient-Centered Cancer Care (2025); Psychooncology 34(6):e70190

(f) Ismail FB, Wahid MIA, Thiagarajan M, Tan AL, et al. Avelumab First-Line Maintenance for Advanced Urothelial Carcinoma: Real-World Results From an Early Access Program in Malaysia (2025); Asia Pacific Journal of Clinical Oncology 21(7):e70042

(g) Bujang NNA, Kong YC, Thiagarajan M, Roslani AC, et al. Development and Validation of Dual language Needs Assessment Tool for People Living with Colorectal Cancer (NeAT-CC) (2025); PLoS One 20(10): e0332930

(h) Aimanan K, Thiagarajan M, Rookappan S, Kritpracha B, Hussein H. Metastatic Chondroblastic Osteosarcoma Involving the Thoracic Aorta Managed with Thoracic Endovascular Aortic Repair: A Case Report and Tribute (2025); Vascular Specialist Intl 41:31

(i) Teh HS, Subramaniam S, Thiagarajan M, Hwong WY. Factors Influencing Physician’s Decision to Conduct Cardiovascular Risk Assessment among Cancer Patients: A Systematic Review (2025); Journal of Health Management 22(2):9-39

(j) Poh ME, Thiagarajan M, Tho LM, Ho GF et al. Advancing Precision Medicine in Non-Small Cell Lung Cancer Diagnostics in a Southeast Asian Country (2025); Cancer Management Resaerch 18:1-10

(k) Zhou C, Tang KJ, Liu B, Kim SW, Thiagarajan M et al. Amivantamab plus chemotherapy versus chemotherapy for first-line treatment of participants with EGFR exon 20 insertion-mutated advanced non-small cell lung cancer: PAPILLON Asia subgroup analysis (2026); Lung Cancer 213:epub109302

Does dose reduction of afatinib affect treatment outcomes of patients with EGFR-mutant metastatic non-small cell lung cancer in real-world clinical practice?

Anderson AC, Flores J, Obciana D, Thiagarajan M, et al. Contouring Practices and Educational Priorities in Southeast Asia: Results from a SEAROG Survey (2024); Radiotherapy and Oncology 197(supp1):S118-119

Development of a mortality score to assess risk of adverse drug reactions among hospitalized patients with moderate to severe chronic kidney disease

Efficacy of Oral Mixed Tocotrienols in Diabetic Peripheral Neuropathy: A Randomized Clinical Trial