HAKAN HARPUTLUOĞLU

Prof. HAKAN HARPUTLUOĞLU


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

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

Representative Publications

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4 February 2022 in Journal of Gastrointestinal Cancer
Verified
Journal Article
Closed access
PDF file
AGahmet gulmez
ahmet gulmez
HHHAKAN HARPUTLUOĞLU
HAKAN HARPUTLUOĞLU

22 June 2012 in Medical Oncology
Verified
Journal Article
Closed access
PDF file
EEEmin Tamer Elkiran
Emin Tamer Elkiran
AGAnatolian Society of Medical Oncology Group
Anatolian Society of Medical Oncology Group
MKMuhammet Ali Kaplan
Muhammet Ali Kaplan
ASAlper Sevinc
Alper Sevinc
SASercan Aksoy
Sercan Aksoy
SBSuleyman Buyukberber
Suleyman Buyukberber

20 November 2024 in Cancers
Verified
Journal Article
Open access
PDF file
FOFatih Ozbay
Fatih Ozbay
HHHAKAN HARPUTLUOĞLU
HAKAN HARPUTLUOĞLU
MKMustafa Karaca
Mustafa Karaca
OTOmer Tekin
Omer Tekin
MSMehmet Ali Nahit SENDUR
Mehmet Ali Nahit SENDUR
ATAli Murat Tatlı
Ali Murat Tatlı
Background and Aims: During liver transplantation, hepatocellular carcinoma (HCC) recurrence remains a critical challenge for patient survival. Targeted therapies, such as sorafenib and regorafenib, have been utilized to manage relapsed HCC in this unique setting. This study aimed to assess the efficacy of Sorafenib and Regorafenib in patients with HCC who experienced recurrence after liver transplantation. We focused on survival outcomes, treatment responses, and the management of side effects in this patient group. Methods: We conducted a retrospective analysis of 73 patients who experienced HCC recurrence post-liver transplantation between 2012 and 2022 across 11 oncology centers in Turkey. Patients were categorized according to Child–Pugh classification and treated with sorafenib as first-line therapy and Regorafenib in case of progression. Survival rates were analyzed using the Kaplan–Meier method, and risk factors were evaluated using Cox regression analysis. Results: Of the 73 patients included in the study, 62 were male (84.9%), and 11 were female (15.1%), with a mean age of 61.5 ± 10.9 years. All patients received sorafenib as first-line treatment. Among patients who experienced progression with sorafenib or discontinued treatment due to toxicity, 45.2% (n = 33) continued treatment with regorafenib. The median progression-free survival (PFS1) time with sorafenib was 5.6 months, and the one-year survival rate was 24.3%. The median progression-free survival (PFS2) time with regorafenib, which was administered as second-line treatment, was also calculated as 5.9 months. Overall survival (OS) duration was determined as 35.9 months. The most common side effects associated with both drugs included fatigue, hand and foot syndrome, and hypertension. Significantly better survival outcomes were shown in the Child–Pugh A group compared to other patients. Conclusions: These results suggest that Sorafenib and Regorafenib treatments offer a survival advantage in patients with relapsed HCC post-transplantation. However, individualized treatment strategies and close follow-up are crucial for optimizing outcomes. Further studies are needed to refine therapeutic protocols and enhance the care of this specific patient group.

1 January 2021 in Cancer Treatment and Research Communications
Verified
Journal Article
Open access
AGahmet gulmez
ahmet gulmez
MDMustafa Dikilitas
Mustafa Dikilitas
EEEmin Tamer Elkiran
Emin Tamer Elkiran
HHHAKAN HARPUTLUOĞLU
HAKAN HARPUTLUOĞLU
Sunitinib malate is a multitargeted oral tyrosine kinase inhibitor (TKI) which is used in treatment of metastatic renal cell carcinoma with side effects such as diarrhea, mucositis, asthenia and myelosuppression. Serious toxicity associated with sunitinib is a rare situation. However; there are few cases reported in the literature. As a result of the inhibition that is caused by sunitinib malate agent at the receptor level, vascular endothelial growth factor (VEGF) level increases. These increased VEGF levels are considered to having a positive contribution on neurological side effects. Neurotoxicity that is related with the usage of sunitinib malate for two weeks will be presented in this case report.

29 October 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
FOFatih Ozbay
Fatih Ozbay
HHHAKAN HARPUTLUOĞLU
HAKAN HARPUTLUOĞLU
MKMustafa Karaca
Mustafa Karaca
OTOmer Tekin
Omer Tekin
MSMehmet Ali Nahit SENDUR
Mehmet Ali Nahit SENDUR
ATAli Murat Tatlı
Ali Murat Tatlı
Background andAims: During liver transplantation, hepatocellular carcinoma (HCC) recurrence remains a critical challenge for patient survival. Targeted therapies, such as Sorafenib and Regorafenib, have been utilized to manage relapsed HCC in this unique setting. This study aimed to assess the efficacy of Sorafenib and Regorafenib in patients with HCC who experienced recurrence after liver transplantation. We focused on survival outcomes, treatment responses, and the management of side effects in this patient group. Methods: We conducted a retrospective analysis of 73 patients who experienced HCC recurrence post-liver transplantation between 2012 and 2022, across 11oncology centers in Turkey. Patients were categorised according to Child-Pugh classification and treated with Sorafenib as first-line therapy and Regorafenib in case of progression. Survival rates were analysed by Kaplan-Meier method and risk factors were evaluated by Cox regression analysis. Results: Of the 73 patients included in the study, 62 were male (84,9%) and 11 were female (15,1%) with a mean age of 61,5 ± 10,9 years. All patients received sorafenib as first-line treatment. Among patients who experienced progression with sorafenib or discontinued treatment due to toxicity, 45,2% (n=33) continued treatment with regorafenib. The median progression-free survival (PFS1) time with Sorafenib was 5,6 months and the one-year survival rate was 24,3%. The median progression-free survival (PFS2) time with Regorafenib, which was administered as second-line treatment, was also calculated as 5,9 months. Overall survival (OS) duration was determined as 35,9 months. The most common side effects associated with both drugs included fatigue, hand-foot syndrome and hypertension. Significantly better survival outcomes were shown in the Child-Pugh A group compared to other patients. Conclusion: These results suggest that Sorafenib and Regorafenib treatments offer a survival advantage in patients with relapsed HCC post-transplantation. However, individualized treatment strategies and close follow-up are crucial for optimizing outcomes. Further studies are needed to refine therapeutic protocols and enhance the care of this specific patient group.

25 January 2024 in Japanese Journal of Clinical Oncology
Verified
Journal Article
Closed access
PDF file
OOOmer Fatih Olmez
Omer Fatih Olmez
ABAhmet Bilici
Ahmet Bilici
OEOzlem Er
Ozlem Er
ABAtıl Bışgın
Atıl Bışgın
ASAlper Sevinc
Alper Sevinc
TGTUMPACT Study Group
TUMPACT Study Group
The objective of this multi-centre, real-world study was to examine the potential influence of comprehensive molecular profiling on the development of treatment decisions or adjustments for patients with advanced solid malignancies. We then evaluated the impact of these informed choices on patient treatment outcomes. The study encompassed 234 adult patients (mean age: 52.7 ± 14.3 years, 54.7% women) who were diagnosed with solid tumours at 21 different medical centres in Turkey. Remarkably, 67.9% of the patients exhibited metastasis at the time of diagnosis. We utilized an OncoDNA (Gosselies, Belgium) platform (OncoDEEP) integrating next-generation sequencing with additional tests to harvest complex molecular profiling data. The results were analyzed in relation with two specific outcomes: (i) the impact on therapeutic decisions, including formulation or modifications, and (ii) associated treatment response. Out of the 228 patients with final molecular profiling results, 118 (50.4%) had their treatment modified, whilst the remaining 110 (47.0%) did not. The response rates were comparable, with 3.9 versus 3.4% for complete response, 13.6 versus 29.3% for partial response, 66.9 versus 51.7% for progressive disease and 15.5 versus 15.5% for stable disease for treatments informed and not informed by complex molecular profiling, respectively (P = 0.16). Our real-world findings highlight the significant impact of complex molecular profiling on the treatment decisions made by oncologists for a substantial portion of patients with advanced solid tumours. Regrettably, no significant advantage was detected in terms of treatment response or disease control rates.