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

Dr. Yoon is dedicated to translating the extensive body of research evidence into tangible improvements in community health. His work involves not only applying this knowledge to enhance health outcomes but also shaping the future of clinical practice through the development of guidelines. In addition, Dr. Yoon actively contributes to special interest groups that focus on critical areas such as non-communicable diseases, maternal health, and diabetes. His commitment extends to influencing policy and practice in these fields, aiming to bridge the gap between research and real-world health applications.

(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