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Assoc. Prof. Dr. Orhan Şencan

Oncology
Orhan Şencan

Orhan Şencan

Born in 1964, I am a graduate of the Faculty of Medicine at Ankara Hacettepe University. I completed my specialization in the Department of Internal Medicine at the Social Security Institution of Turkey, Ankara Training and Research Hospital, and specıalızatıon in Medical Oncology at Ankara Unıversıty, Medical Faculty, Department of Medıcal Oncology in Ankara. Since December 2024, I have been working actively at Avicenna Hospital in Ataşehir. I have over 25 years of experience in the field of medical oncology.

Conditions Treated
  • Evaluation, diagnosis, treatment and folow-up of cancer patients (including breast, lung, esophagus, stomach, liver, pancreas, intestines, rectum, kidney, bladder, prostate, ovary, cervix, and other organs)
Treatment Methods
  • Medıcal treatment of cancer including:
  • Chemotherapy
  • Immunotherapy and biologic agents
  • Targeted therapy
  • Hormonal therapy
Research & Publications

▪ Yalcin S, Uslu R, Dane F, Yilmaz U, Zengin N, Buyukunal E, Buyukberber S, Camci C, Sencan O, Kilickap S, Ozdener F, Cevik D. Bevacizumab + capecitabine as maintenance therapy after initial bevacizumab + XELOX treatment in previously untreated patients with metastatic colorectal cancer: phase III ‘Stop and Go’ study results–a Turkish Oncology Group Trial. Oncology.85(6):328-35, 2013
▪ Demirkazik A, Asik M, Yalcin B, Dogan M, Buyukcelik A, Sencan O, Utkan G, Akbulut H, Icli F. The prognostic importance of Leucocytosis, thrombocytosis and serum cascular endothelial growth factor (VEGF) level in inoperable non-small cell lung cancer (NSCLC): A match-pair analysis. International Journal of Hematology and Oncology; 20:14-19, 2010
▪ Yaman E, Yalçın B, Utkan G, Akbulut H, Işıkdoğan A, Şencan O, Büyükçelik A, Pamir A, Demirkazık A, İçli F. Prognostic significance of serum matrix metalloproteinase 9 (MMP-9) levels in patients with Sarcomas. International Journal of Hematology and Oncology; 18:79-84, 2008
▪ Sencan O, Buyukcelik A, Yalcin B, Boruban MC, Akbulut H, Demirkazik A, Senler FC, Onur H, Icli F. The symptomatic benefit (the clinical benefit response) from the second-line chemotherapy in patients with advanced gastric adenocarcinoma. European Journal of Cancer Care 2008, 17, 26–32
▪ Boruban C, Sencan O, Akmansu M, Atik ET, Ozbek S. Metastatic gastrointestinal stromal tumor with long-term response after treatment with concomitant radiotherapy and imatinib mesylate.
Anticancer Drugs. 2007 Sep;18(8):969-72.
▪ Dogan M, Demirkazik A, Konuk N, Yalcin B, Buyukcelik A, Utkan G, Tek I, Akbulut H, Sencan O, Icli F.The effect of venous thromboembolism on survival of cancer patients and its relationship with serum levels of factor VIII and vascular endothelial growth factor: a prospectivematched-paired study. Int J Biol Markers. 2006 Oct-Dec;21(4):206-10.
▪ Boruban MC, Yasar U, Babaoglu MO, Sencan O, Bozkurt A. Tamoxifen inhibits cytochrome P450 2C9 activity in breast cancer patients. J Chemother. 2006 Aug;18(4):421-4.
▪ Boruban C, Yavas O, Altundag K, Sencan O. Synchronous presentation of nasopharyngeal and renal cell carcinomas. Int Braz J Urol. 2006 May-Jun;32(3):310-2.
▪ Gunes A, Coskun U, Boruban C, Gunel N, Babaoglu MO, Sencan O, Bozkurt A, Rane A, Hassan M, Zengil H, Yasar U. Inhibitory effect of 5-fluorouracil on cytochrome P450 2C9 activity in cancer patients. Basic Clin Pharmacol Toxicol. 2006 Feb;98(2):197-200.
▪ Icli F, Akbulut H, Uner A, Yalcin B, Baltalı E, Altinbas M, Coskun Ş, Komurcu S, Erkisi M, Demirkazik A, Senler FC, Sencan O, Büyükcelik A, Boruban C, Onur H, Zengin N, SakSD. Cisplatin plus oral etoposide (EoP) combination is more effective than paclitaxel in patients with advanced breast cancer pretreated with anthracyclines: a randomised phase III trial of Turkish Oncology Group. British Journal of Cancer, 92:639–644, 2005
▪ Yalcin B, Akbulut H, Buyukcelik A, Sencan O, Demirkazik A, Onur H, Senler FC, Dincol D, Icli F. The Effects of Chronomodulated Therapy with 5-Fluorouracil (5-Fu) and Folinic Acid (Fa) on the Toxicity and Quality of Life in Patients with Advanced Gastric Cancer. Biological Rhythm Research, 35 (4/5):259–268, 2004
▪ Dincol D, Samur M, Pamir A, Sencan O, Akbulut H, Yalçın B, Onur H, Demirkazık A, Şenler FÇ, Içli F. Prospective Randomized Comparison of the a.m. versus p.m. Daily Single Subcutaneous Administration of Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF). Cancer, 88:2033-6, 2000
▪ Arıcan A, İçli F, Akbulut H, Çakır M, Şencan O, Samur M, Açıkgöz N, Demirkazık A. The effect of two different doses of oral clodronate on pain in patients with bone metastases. Medical Oncology, 16:204-210, 1999,

Awards & Honors
  • 1999: Oral Presentation Award at the 13th National Cancer Congress in Antalya, Turkey
  • 1979-1981: High School Scholarship from the Scientific and Technical Research Council of Turkiye (TUBİTAK)
  • 1978: Third Place in the Central Anatolia Region in the National Middle School Mathematics Competition by Scientific and Technical Research Council of Turkiye (TUBİTAK)
Professional Memberships
  • American Society for Clinical Oncology (ASCO)’ expi
  • European Society for Medical Oncology (ESMO)
  • Turkish Society of Medical Oncology
  • Turkish Oncology Group (TOG)
  • Turkish Society of Internal Medicine (Member of Executive Committee between 2002-2004)
  • Chamber of Physicians, Istanbul, Turkiye
Certifications

Doktor Ayrıntıları

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Categories:
Ataşehir Hastanesi, Ataşehir Hastanesi, Kanser

Education

1997 – 1999
Faculty of Medicine, Ankara University, Department of Medical Oncology
1990 – 1994
Social Security Institution of Turkey, Ankara Training Hospital, Department of Internal Medicine, Ankara, Turkey
1981 – 1988
Faculty of Medicine, Hacettepe University, Ankara, Turkey

Professional Experience

2023 – 2024
Acibadem Bodrum Hospital, Mugla, Turkey
2017 – 2023
Bahrain Oncology Center, King Hamad University Hospital, Kingdom of Bahrain
2017 – 2017
MedicalPark Gebze Hospital, Kocaeli, Turkey
2016 – 2017
Sante Oncology Center, Istanbul, Turkey
2012 – 2016
Faculty of Medicine, Fatih University, Department of Medical Oncology, Istanbul, Turkey
2010 – 2012
Acibadem Maslak Hospital, Istanbul, Turkey
2009 – 2010
Lokman Hekim Hospital, Ankara, Turkey
2006 – 2009
Faculty of Medicine, Ankara University, Department of Medical Oncology, Ankara, Turkey
1999 – 2006
Social Security Institution, Ankara Training and Research Hospital and Etlik Specialty Hospital, Ankara, Turkey
1995 – 1996
Faculty of Medicine, İnönü University, Department of Internal Medicine, Malatya, Turkey
1996 – 1997
Ministry of Health of the Republic of Turkey, Regional Primary Health Care Center, Muş, Turkey

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