Furkan Ceylan

Dr. Furkan Ceylan


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
18 June 2019 in TURKISH JOURNAL OF MEDICAL SCIENCES
Verified
Journal Article
Open access
DGDeniz Can Guven
Deniz Can Guven
ÖDÖmer Dizdar
Ömer Dizdar
AAAbdullah Cevdet Akman
Abdullah Cevdet Akman
EBEzel Berker
Ezel Berker
EYEmre Yekedüz
Emre Yekedüz
MHMutlu Hayran
Mutlu Hayran
In this study, we aimed to assess the cancer risk among patients with periodontal disease. Patients diagnosed with periodontal diseases at Hacettepe University between 2007 and 2012 were included and data on the diagnosis of any cancer after periodontal disease were collected from patient files. The age- and sex-standardized incidence rates (SIRs) were calculated using Turkish National Cancer Registry 2013 data. A total of 5199 patients were included. Median follow-up was 7.2 years. Patients with periodontal diseases had 17% increased risk of cancer compared with the expected counts for the corresponding age and sex groups (SIR: 1.17; 95% CI: 1.04–1.3, P = 0.006). The increased cancer risk was statistically significant in women (SIR: 1.24; 95% CI: 1.05–1.45, P = 0.008) but not in men. Among women with periodontal disease, the risks of breast cancer (SIR: 2.19) and head and neck cancer (SIR: 4.71) were significantly increased. Among men, the risks of prostate cancer (SIR: 1.84), head and neck cancer (SIR: 3.55), and hematological cancers (SIR: 1.76) were significantly increased. This study showed that periodontal diseases were associated with increased risk of several cancers. Besides other well-known benefits for health, the provision of oral/dental health should be considered and employed as a cancer prevention measure.

26 February 2021 in TURKISH JOURNAL OF MEDICAL SCIENCES
Verified
Journal Article
Open access
EBEmre Bilgin
Emre Bilgin
FCFurkan Ceylan
Furkan Ceylan
EDEmine Duran
Emine Duran
BFBayram Fari̇sOğullari
Bayram Fari̇sOğullari
EBErtugrul Cagri Bolek
Ertugrul Cagri Bolek
UKUmut Klayoncu
Umut Klayoncu
To assess the real-life efficacy, retention rate, and safety data of tofacitinib in rheumatoid arthritis (RA) patients. We analyzed all patients registered in the HURBİO database who received at least 1 dose of tofacitinib. Patients who received at least one dose were included in retention analysis; patients with at least 1 control visit were included in efficacy and safety analysis. Factors predicting good response at the last follow-up visit were analyzed by logistic regression analysis. Drug retention rates were calculated using the Kaplan–Meier method and predictors of drug retention were determined by Cox proportional hazard model. Adverse events, reasons for switching, and discontinuation were also determined. Two hundred and forty-seven (210, 85.0% female) patients were included in the study. The median duration of tofacitinib treatment was 10.2 (20.2) [med, (IQR)] months. Two hundred and four (82.6%) patients were included in safety and efficacy analysis; 45.6% of patients were in low-disease activity (LDA) state (DAS28-CRP ≤ 3.2). Predictors of LDA were being biologic-naïve [aOR 2.53 (1.31–4.88); 95% CI] and RF negativity [aOR 2.14 (1.12–4.07); 95% CI]. At 1 year, the overall tofacitinib retention rate was 63.9% with no relevant predicting factor. Response and retention rates of tofacitinib were similar in patients with and without concomitant csDMARDs. Treatment failure was the most common cause of discontinuation. The most common infectious and laboratory adverse events were herpes zoster infection (3.9 per 100 patient-years) and elevation in ALT (x3UNL: 9.7 per 100 patient-years), respectively. Tofacitinib is effective as monotherapy or in combination with csDMARDs. It is a well-tolerated treatment option in Turkish RA patients.

15 July 2025 in Journal of Oncology Pharmacy Practice
Verified
Journal Article
Closed access
FCFurkan Ceylan
Furkan Ceylan
GSGamze Sonmez
Gamze Sonmez
ATAteş Kutay TENEKECİ
Ateş Kutay TENEKECİ
AUAhmet Arda Unal
Ahmet Arda Unal
MSMehmet Ali Nahit SENDUR
Mehmet Ali Nahit SENDUR
Background: Lung cancer is a leading cause of cancer-related deaths, with Non-Small Cell Lung Cancer (NSCLC) comprising 85–90% of cases, most commonly adenocarcinoma. Key mutations include EGFR Exon 19 deletions and Exon 21 L858R. While third-generation TKIs like osimertinib, lazertinib, and aumolertinib are effective, resistance often arises. Amivantamab, a bispecific monoclonal antibody targeting EGFR and c-MET, shows promise, particularly against EGFR Exon 20 insertions. Objective: To provide a comprehensive evaluation of the adverse effects associated with amivantamab in EGFR-mutant NSCLC, including their underlying pathophysiological mechanisms and evidence-based management strategies. In addition, this review aims to contextualize the clinical relevance of amivantamab by briefly outlining the therapeutic evolution of EGFR-targeted treatments, highlighting the rationale for its development, and current positioning in treatment paradigms. Methods: A comprehensive review of clinical trials, including CHRYSALIS, PAPILLON, MARIPOSA, and PALOMA-III, was conducted to assess the safety and efficacy of amivantamab. Practical and early insights into managing adverse effects of amivantamab are critical to better adherence and quality of life. Results: Adverse effects were observed in most of the patients treated with amivantamab. Common side effects included cutaneous toxicities, diarrhea, infusion-related reactions (IRRs), vascular thrombosis and pneumonitis. The most frequent cutaneous side effects were rash, paronychia, pruritis, and stomatitis. Diarrhea occurred in patients primarily due to EGFR inhibition. IRRs were predominantly mild to moderate, occurring mainly during the first cycle. Thrombosis was a notable adverse effect observed, even in patients receiving anticoagulant prophylaxis. Pneumonitis was less common but severe. Management: Adverse effects of amivantamab are managed based on severity. Cutaneous toxicities are treated with antibiotics, topical steroids, and dose adjustments. Diarrhea is managed with hydration, loperamide, and dose interruption. Infusion-related reactions (IRRs) are treated symptomatically, with epinephrine in severe cases. Anticoagulants are used for deep vein thrombosis or thromboembolism, and fibrinolytics or thrombectomy may be considered. Pneumonitis is managed by discontinuing amivantamab and using glucocorticoids. Conclusions: Amivantamab is effective for EGFR mutant NSCLC but can cause adverse effects. Understanding these effects and implementing management strategies can optimize outcomes, maintaining treatment efficacy.

11 June 2024 in Journal of Oncology Pharmacy Practice
Verified
Journal Article
Closed access
SESafa Can Efil
Safa Can Efil
BBBurak Bilgin
Burak Bilgin
FCFurkan Ceylan
Furkan Ceylan
HKHilal Karakaş
Hilal Karakaş
IKİrFan Karahan
İrFan Karahan
MSMehmet Ali Nahit SENDUR
Mehmet Ali Nahit SENDUR
Objective: The objective of this article is to review the efficacy, safety, and evidence for current use and potential future uses of immune-checkpoint inhibitors (ICIs) in the management of resectable non-small cell lung cancer (NSCLC). Data sources: A literature review was carried out through PubMed to identify completed and ongoing clinical trials evaluating the use, efficacy, and safety of ICIs in the management of resectable NSCLC. Data summary: To date, four phase 3 trials have emerged that have changed our treatment practice concerning the utilization of ICIs during the adjuvant and neoadjuvant settings. The IMpower010 and KEYNOTE-091 trials examined the application of adjuvant atezolizumab and pembrolizumab, respectively, following surgical resection and adjuvant chemotherapy. In the CheckMate 816 trial, the combination of nivolumab and chemotherapy as a neoadjuvant therapy received approval for patients with resectable NSCLC. Also, for patients with resectable NSCLC, the use of a pembrolizumab and chemotherapy combination as a perioperative therapy received approval based on the results of the KEYNOTE-671 trial. Apart from these trials, there are numerous phase 2 and phase 3 trials, some of which have been published while others are still in progress. Conclusion: Despite the promising outcomes from these trials there remain several unanswered questions. In this review, we will assess clinical trials involving adjuvant, neoadjuvant, and perioperative ICIs, aiming to address the unresolved questions related to these therapeutic approaches.

2 January 2026 in Biosensors
Verified
Journal Article
Open access
PDF file
EÖEbru Özgür
Ebru Özgür
AÇAyça Çırçır
Ayça Çırçır
Begum Sen DoganBegum Sen Dogan
Begum Sen Dogan
ŞŞŞebnem Şahin
Şebnem Şahin
GKGizem Karayalcin
Gizem Karayalcin
SKSaadettin Kılıçkap
Saadettin Kılıçkap
Lung cancer is the leading cause of cancer-related mortality worldwide, with non-small-cell lung cancer (NSCLC) accounting for the majority of cases. Standard tissue biopsies are invasive and unsuitable for repeated monitoring. Liquid biopsy technologies, particularly circulating tumor cell (CTC) analysis, offer a minimally invasive alternative for real-time disease tracking. To address the need for efficient and reproducible CTC isolation, we developed the Cellsway microfluidic CTC enrichment and identification platform, which employs inertial hydrodynamics in a spiral-shaped microfluidic channel comprising hydrofoil-shaped pillars to enable high-throughput, label-free enrichment of CTCs while preserving cell integrity, followed by an optimized CTC identification assay. Analytical performance assessed through spiking experiments using NSCLC cell lines demonstrated recovery rates of 91.9% for H1975 cells and 78.3% for A549 cells. Clinical validation was performed on blood samples from 51 stage IV NSCLC patients. A 7.5 mL volume of peripheral blood was processed with the SwayBox platform, and enriched CTCs were identified through an optimized multiplex immunofluorescence protocol. CTCs were detected in 47% of NSCLC patients, with counts ranging from 0 to 72 cells per 7.5 mL of blood. At a cutoff of 1 CTC per 7.5 mL, the assay achieved a specificity of 95%. Patient-derived CTCs exhibited smaller mean diameters compared to cultured NSCLC cell lines, yet were effectively enriched through hydro-dynamic tuning. These findings demonstrate that the Cellsway platform enables efficient and re-producible CTC isolation with high specificity, supporting its potential utility for clinical monitoring and precision oncology in NSCLC.

31 December 2024 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
FCFurkan Ceylan
Furkan Ceylan
MMMırmehdi Mehtıyev
Mırmehdi Mehtıyev
DDDidem Şener Dede
Didem Şener Dede
SESafa Can Efil
Safa Can Efil
ATAteş Kutay TENEKECİ
Ateş Kutay TENEKECİ
BYBulent Yalcin
Bulent Yalcin
Background: Although CDK4/6 inhibitors combined with endocrine therapies have improved outcomes in HR+ HER2-negative metastatic breast cancer, predictive biomarkers for treatment response and adverse effects remain limited. This study assessed the prognostic and predictive value of large unstained cells (LUC), a subset of white blood cells that may reflect immune status or treatment response. Methods: A retrospective analysis of 210 patients with HR+ HER2-negative metastatic breast cancer treated with CDK 4/6 inhibitors between 2021 and 2024 was conducted. Clinical data, including demographics, tumor characteristics, and treatment regimens, were analyzed. Based on LUC levels, progression-free survival (PFS), overall survival (OS), and adverse events were evaluated. Results: The cohort had a median age of 57, of which 78% were postmenopausal. Common metastatic sites included bone (67%) and liver (24%). At a median follow-up of 18.5 months, the PFS and OS rates were 65% and 83%. Patients with low LUC levels had significantly shorter PFS (OR: 1.91; p = 0.014) and OS (OR: 2.39; p = 0.012), while high LUC levels correlated with a lower incidence of grade 3 neutropenia (OR: 0.49; p = 0.017). Liver metastasis and prior treatments were also linked to shorter survival. Conclusions: LUC levels emerge as a promising biomarker for predicting survival outcomes and the risk of neutropenia in HR+ HER2-negative metastatic breast cancer patients treated with CDK 4/6 inhibitors and endocrine therapy, showing their potential to guide personalized treatment approaches.