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Dr. Meshari Alzahrani

Medical Oncologist (Breast Cancer)

Dr. Meshari Alzahrani

Consultant, breast cancer

10+ years of experience

MBBS; Residency in Internal Medicine; Fellowship in Medical Oncology
King Faisal Specialist Hospital, Riyadh - United Arab Emirates

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    Areas of Expertise

    Dr. Meshari Alzahrani

    Major Conditions Treated

    • Early-Stage Breast Cancer
    • Locally Advanced Breast Cancer
    • Metastatic (Stage IV) Breast Cancer
    • HER2-Positive Breast Cancer
    • Triple-Negative Breast Cancer (TNBC)
    • Hormone Receptor-Positive Breast Cancer
    • Hereditary Breast Cancer (BRCA1/BRCA2)
    • Bone Metastases and Skeletal-Related Events

    Sub-specialties

    • Breast Medical Oncology: Expert in systemic therapy for all breast cancer subtypes — a leading Medical Oncologist (Breast Cancer) specialist in Riyadh, Saudi Arabia for international patients.
    • Endocrine & Targeted Therapy: CDK4/6 inhibitors, aromatase inhibitors, anti-HER2 agents and PARP inhibitors tailored to tumour biology.
    • Bone-Modifying Agents & Supportive Oncology: Evidence-based use of bisphosphonates and denosumab to reduce skeletal complications — a clinical research interest of Dr. Alzahrani.

    Advanced Procedures & Treatments

    • Neoadjuvant and Adjuvant Chemotherapy for Breast Cancer
    • HER2-Targeted Therapy (Trastuzumab, Pertuzumab, T-DXd)
    • CDK4/6 Inhibitors (Palbociclib, Ribociclib, Abemaciclib)
    • Immunotherapy for Triple-Negative Breast Cancer
    • PARP Inhibitors for BRCA-Mutated Breast Cancer
    • Endocrine Therapy for Premenopausal & Postmenopausal Patients
    • Bisphosphonate & Denosumab Therapy for Bone Metastases

    Qualifications & Credentials

    Medical Degrees

    • MBBS — Saudi Medical School
    • Residency in Internal Medicine — Saudi Board

    Fellowships & Special Training

    • Fellowship in Medical Oncology — The Ottawa Hospital, University of Ottawa, Canada
    • Advanced training in Breast Oncology and Bone Health in Cancer — Ottawa Hospital Research Institute

    Certifications & Accreditations

    • Saudi Commission for Health Specialties (SCFHS) Registration
    • Member — American Society of Clinical Oncology (ASCO)
    • Member — European Society for Medical Oncology (ESMO)

    Professional Experience

    Current Affiliation

    • King Faisal Specialist Hospital and Research Centre (KFSHRC), Riyadh, Saudi Arabia — Consultant, Breast Cancer Section, Medical Oncology Department, Cancer Centre of Excellence (Present)

    Past Affiliations

    • The Ottawa Hospital & University of Ottawa, Canada — Medical Oncology Fellow
    • Ottawa Hospital Research Institute — Cancer Therapeutics Program (Clinical Research Fellow)

    Academic & Research Roles

    • Faculty — College of Medicine, Alfaisal University, Riyadh
    • Core panellist — 2025 KFSHRC Breast Cancer Consensus (modified Delphi process)
    • Participant — KFSHRC Multidisciplinary Breast Tumour Board

    Key Achievements

    • Co-drafted 35 consensus statements for Saudi national breast cancer management guidelines
    • Multiple first- and co-authored publications indexed on PubMed
    • Internationally trained with experience managing complex metastatic breast cancer cases

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