Medical Oncology Assoc. Prof. Dr. İzzet Doğan
✓ Medically verified profileAssoc. Prof. Dr. İzzet Doğan
✓ Medically verified profile
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Assoc. Prof. Dr. İzzet Doğan is a Medical Oncology specialist at Acibadem Atakent Hospital in İstanbul with 18+ years of experience.
He treats HER2-positive metastatic breast cancer, breast cancer brain metastases, node-negative early-stage breast cancer, metastatic breast cancer, metastatic renal cell carcinoma with brain metastases, metastatic Ewing sarcoma, HER2/Neu-positive metastatic gastric cancer, male breast cancer, ALK-mutant non-small cell lung cancer, and recurrent ovarian granulosa cell tumor, including trastuzumab-based therapy, vincristine-irinotecan-temozolomide regimens, and…
About Assoc. Prof. Dr. İzzet Doğan
Assoc. Prof. Dr. İzzet Doğan is a Medical Oncology physician with 18 years of experience. His listed areas of expertise include metastatic Ewing sarcoma, male breast cancer, ALK-mutant non-small cell lung cancer, recurrent ovarian granulosa cell tumor, trastuzumab-based therapy, vincristine, irinotecan and temozolomide regimen, and hormonal therapy for recurrent ovarian granulosa cell tumor.
Dr. Doğan graduated from Hacettepe University Faculty of Medicine in 2008. He completed Medical Oncology at Istanbul University Istanbul Faculty of Medicine in 2021 and held the rank of Associate Professor at Başakşehir Çam and Sakura City Hospital / Medical Oncology in 2023. He was an Internal Medicine Research Assistant at Ankara University Faculty of Medicine, Department of Internal Medicine from 2009 to 2013, and a Medical Oncology Research Assistant at Istanbul University Istanbul Faculty of Medicine / Department of Internal Medicine / Division of Medical Oncology from 2018 to 2021. He joined Acibadem Health Group in 2025. He practises at Acibadem Bakirkoy Hospital in İstanbul, Türkiye.
The profile lists 3 professional bodies, among them the European Society for Medical Oncology (ESMO), the Turkish Society of Medical Oncology, and the Turkish Medical Association.
The profile lists 10 publications dated between 2022 and 2023. Their subjects include HER2-positive metastatic breast cancer and brain metastases, metastatic renal cell carcinoma with brain metastases, and metastatic Ewing sarcoma. Other listed papers address HER2/Neu-positive metastatic gastric cancer, male breast cancer, ALK-mutant non-small cell lung cancer, and recurrent ovarian granulosa cell tumor.
Dr. Doğan speaks Turkish and English. Online consultation is available, allowing patients abroad to speak with the doctor before travelling.
Areas of Expertise
Conditions treated and procedures performed by this specialist.
Education
- 2021Istanbul University Istanbul Faculty of Medicine Medical Oncology
- 2013Ankara University Faculty of Medicine Internal Medicine
- 2008Hacettepe University Faculty of Medicine
Professional Experience
- 2025Acibadem Health Group
- 2023Başakşehir Çam and Sakura City Hospital / Medical Oncology – Associate Professor
- 2021–2022Başakşehir Çam and Sakura City Hospital / Medical Oncology Specialist
- 2018–2021Istanbul University Istanbul Faculty of Medicine / Department of Internal Medicine / Division of Medical Oncology) / Medical Oncology – Research Assistant
- 2015Antalya Training and Research Hospital / Internal Medicine Specialist
- 2014Kütahya Military Hospital / Internal Medicine Specialist
- 2013Aksaray State Hospital / Internal Medicine Specialist
- 2009–2013Ankara University Faculty of Medicine, Department of Internal Medicine / Department of Internal Medicine / Internal Medicine Research Assistant
- 2008–2009Korgan Çayırkent Health Center, Ordu / General Practitioner
Professional Memberships
- European Society for Medical Oncology (ESMO)
- Turkish Society of Medical Oncology
- Turkish Medical Association
Selected Publications
- Outcomes and Prognostic Factors in HER2-Positive Metastatic Breast Cancer Patients Who Had Developed Brain Metastasis in the Treatment Process (2023). Oncology, S. Karger AG, 101, Doi: 10.1159/000529030 Doğan İzzet, Kızıldağ Yırgın İnci, Özkurt Selnur, İbiş Kamuran, Vatansever Sezai, Saip Pınar Mualla, Aydıner Adnan
- Long-term outcomes and predictors of recurrence in node-negative early stage breast cancer patients. Doğan İzzet, Önder Semen, Tükenmez Mustafa, Cabioğlu Neslihan, Küçücük Nezihe Seden, Müslümoğlu Mahmut, Özmen Vahit, Saip Pınar Mualla, İğci Abdulla Journal of Cancer Research and Clinical Oncology, Doi: 10.1007/s00432-023-05276-y
- Termination of trastuzumab in HER2-positive metastatic breast cancer patients who received trastuzumab beyond progression (2023). Scientific Reports 2023(13), Doi: 10.1038/s41598-023-35715-2 Doğan İzzet, Aydın Esra, Khanmammadov Nijat, Paksoy Nail, Saip Pınar Mualla, Aydıner Adnan
- Demographic and Clinical Features of Patients with Metastatic Breast Cancer: A Retrospective Multicenter Registry Study of the Turkish Oncology Grou Doğan İzzet, Aksoy Sercan, Çakar Burcu, Başaran Gül, Ercelep Özlem, Mandel Nil Molinas, Korkmaz Taner, Gökmen Erhan, Aydıner Adnan, Saip Pınar Mualla, (2023). Cancers, MDPI, 15, Doi: 10.3390/cancers15061667
- Outcomes and prognostic factors in metastatic renal cell carcinoma patients with brain metastases. Journal of Cancer Research and Therapeutics, 1-5., Doi: 10.4103/jcrt.jcrt_972_22 Doğan İzzet, İribaş Çelik Ayça, Paksoy Nail, Vatansever Sezai, Başaran Mert
- Efficacy of the VIT (vincristine, irinotecan and temozolomide) regimen in adults with metastatic Ewing sarcoma. (2022). Journal of Chemotherapy, Doi: 10.1080/1120009X.2022.2104295 Doğan İzzet, İribaş Çelik Ayça, Ahmed Melin Aydan, Başaran Mert
- Evaluation of Prognostic Factors and Trastuzumab-based Treatments in HER2/Neu-positive Metastatic Gastric Cancer. (2022). Journal of the College of Physicians and Surgeons Pakistan, 32(8), 1014-1019., Doi: 10.29271/jcpsp.2022.08.1014 Doğan İzzet, Karabulut Senem, Taştekin Didem, Ferhatoğlu Ferhat, Paksoy Nail, Şakar Burak
- The frequency and prognostic significance of ABO/Rh blood groups in male breast cancer patients: a multicenter study. (2022). Medicine, 101(35), 1-6., Doi: 10.1097/MD.0000000000030147 Doğan İzzet, Ayhan Murat, Gürbüz Mustafa, Küçükarda Ahmet, Aydın Esra, Ürün Yüksel, Çiçin İrfan, Saip Pınar Mualla
- Evaluation of clinicopathological features determining treatment response in patients with ALK mutant NSCLC. (2022). Medicine, 101(34), 1-6., Doi: 10.1097/md.0000000000030188 Doğan İzzet, Gürbüz Mustafa, Paksoy Nail, Ferhatoğlu Ferhat, Vatansever Sezai, Saip Pınar Mualla, Demirkazık Ahmet, Aydıner Adnan
- Hormonal Therapy in Pretreated Patients With Recurrent Ovary Granulosa Cell Tumor Journal of Pharmacy Practice, Doi: 10.1177/08971900221129679 Doğan İzzet, Aydın Esra, Topuz Samet, Saip Pınar Mualla, Salihoğlu Mehmet Yavuz, Aydıner Adnan
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What patients say about Assoc. Prof. Dr. İzzet Doğan
★★★★★From 2,400+ verified patient reviews“My trauma care exceeded every expectation I had. Dr. Doğan was thorough, professional and genuinely caring.”
“My experience with pain control during surgery here restored my faith in medical care. Dr. Doğan took the time to review my full history before recommending anything. The whole experience was organised and reassuring.”
“My experience with hysteroscopy here restored my faith in medical care. The expertise of Dr. Doğan put my mind completely at ease. I am deeply grateful for everything.”
“Years of worry ended once I came here for my urological surgery. I cannot thank Dr. Doğanca enough for the skill and kindness shown.”