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BAŞOĞLU TÜYLÜ, TUĞBA

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BAŞOĞLU TÜYLÜ

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TUĞBA

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2022 - 20233
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    PublicationOpen Access
    Role of baseline Ga-68-PSMA PET/CT-derived whole-body volumetric parameters in predicting survival outcomes of metastatic castration-resistant prostate cancer patients receiving first-line treatment
    (2022-08-01) AKIN TELLİ, TUĞBA; ÖZGÜVEN, SALİH; FİLİZOĞLU, NUH; ÖZTÜRK, MEHMET SAADEDDİN; ARIKAN, RUKİYE; DEMİRCAN, NAZIM CAN; BAŞOĞLU TÜYLÜ, TUĞBA; ALSAN ÇETİN, İLKNUR; ÖNEŞ, TUNÇ; DANE, FAYSAL; YUMUK, PERRAN FULDEN; AKIN TELLİ T., ÖZGÜVEN S., Alan O., Filizoglu N., ÖZTÜRK M. S. , Sariyar N., Isik S., Arikan R., DEMİRCAN N. C. , BAŞOĞLU TÜYLÜ T., et al.
    Objective We aimed to evaluate whether baseline Ga-68-PSMA PET/CT-derived whole-body volumetric parameters could be used as predictive biomarkers for survival in metastatic castration-resistant prostate cancer (mCRPC) patients receiving first-line treatment. Materials and methods This retrospective study included 54 mCRPC patients, who underwent baseline Ga-68-PSMA PET/CT imaging within 1 month before starting first-line treatment. Pre-treatment prostate-specific antigen (PSA) levels and treatments were recorded. SUVmax, SUVmean, whole-body PSMA-derived tumor volume (wbPSMA-TV), and whole-body total lesion PSMA (wbTL-PSMA) were calculated for all patients. PSA response was defined as a decline of >= 50% from pre-treatment value at 12 weeks. Overall survival (OS) was measured from the start of the first-line treatment for mCRPC. Results Docetaxel and abiraterone/enzalutamide were administered to 32 and 22 patients in the first-line setting, respectively. wbPSMA-TV (rho = 0.582, p = 0.004) and wbTL-PSMA (rho = 0.564, p = 0.007) showed moderate positive correlations with PSA levels. Older age (p = 0.02), higher wbPSMA-TV (p = 0.007), higher PSA (p = 0.01), higher number of bone metastases (p = 0.02), and lack of PSA response (p = 0.03) were significantly associated with an increased risk of mortality. Multivariate analysis determined wbPSMA-TV (HR: 1.003, 95% CI 1.001-1.004, p = 0.001) and PSA response (HR: 2.241, 95% CI 1.189-4.222, p = 0.01) as independent predictors of OS. Conclusion The wbPSMA-TV may be a useful tool to reflect tumor burden and predict survival outcomes in patients with mCRPC.
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    PublicationOpen Access
    Real life experience of patients with locally advanced gastric and gastroesophageal junction adenocarcinoma treated with neoadjuvant chemotherapy: A Turkish oncology group study
    (2023-01-01) BAŞOĞLU TÜYLÜ, TUĞBA; YUMUK, PERRAN FULDEN; BAŞOĞLU TÜYLÜ T., Sakin A., Erol C., Ozden E., ÇABUK D., Cilbir E., Tataroglu ozyukseler D., Ayhan M., Sendur M. A., Dogan M., et al.
    Neoadjuvant chemotherapy (NACT) in gastroesophageal junction (GEJ) and gastric cancer (GC) was shown to improve survival in recent studies. We aimed to share our real-life experience of patients who received NACT to compare the efficacy and toxicity profile of different chemotherapy regimens in our country. This retrospective multicentre study included locally advanced GC and GEJ cancer patients who received NACT between 2007 and 2021. Relation between CT regimens and pathological evaluation were analysed. A total of 794 patients from 45 oncology centers in Turkey were included. Median age at the time of diagnosis was 60 (range: 18-86). Most frequent NACT regimens used were FLOT (65.4%), DCF (17.4%) and ECF (8.1%), respectively. In the total study group, pathological complete remission (pCR) rate was 7.2%, R0 resection rate 86.4%, and D2 dissection rate was 66.8%. Rate of pCR and near-CR (24%), and R0 resection (84%) were numerically higher in FLOT arm (p > 0.05). Patients who received FLOT had also higher chemotherapy-related toxicity rate compared to patients who received other regimens (p > 0.05). Median follow-up time was 16 months (range: 1-154 months). Estimated median overall survival (OS) was 58.4months (95% CI: 35.2-85.7) and disease-free survival (DFS) was 50.7 months (95% CI: 25.4-75.9). The highest 3-year estimated OS rate was also shown in FLOT arm (68%). We still do not know which NACT regimen is the best choice for daily practice. Clinicians should tailor treatment regimens according to patients\" multifactorial status and comorbidities for to obtain best outcomes. Longer follow-up period needs to validate our results.
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    PublicationOpen Access
    Association of Pre-treatment Sarcopenia with Side Effects and Prognosis in Non-small Cell Lung Cancer Patients Receiving Erlotinib
    (2022-08-01) DEMİRCAN, NAZIM CAN; ENGÜR, CEREN ÖZGE; AKIN TELLİ, TUĞBA; BAŞOĞLU TÜYLÜ, TUĞBA; ARIKAN, RUKİYE; ÖZGÜVEN, SALİH; DANE, FAYSAL; KAYA, HANDAN; ÖNEŞ, TUNÇ; YUMUK, PERRAN FULDEN; DEMİRCAN N. C. , ENGÜR C. Ö. , AKIN TELLİ T., BAŞOĞLU TÜYLÜ T., Arikan R., Yasar A., Celebi A., Alan O., Isik S., ÖZGÜVEN S., et al.
    OBJECTIVE We investigated the relationship of baseline sarcopenia with toxicities, treatment response, and survival in patients who had non-small cell lung cancer (NSCLC) harboring an epidermal growth factor receptor (EGFR) mutation and received erlotinib.METHODS Computed tomography images from PET/CT scans before erlotinib treatment were retrospectively assessed. Skeletal muscle index, calculated as skeletal muscle area at third lumbar vertebra level/square of height, was used to define sarcopenia with < 52.4 cm2/m2 for males and < 38.5 cm2/m2 for females. Cox hazard models were conducted to determine predictors of survival.RESULTS The study included 30 patients, and 11 (36.7%) were sarcopenic. All-grade and Grade 3 toxicities were more frequent in sarcopenic group, although it was statistically insignificant (81.8% vs. 63.2%, p=0.282 for all-grade, and 18.2% vs. 10.5%, p=0.552 for grade 3). Response rates were 63.6% in sarcopenic and 68.4% in non-sarcopenic patients (p=0.789). Median progression-free survival was 7.9 and 9.2 months in sarcopenic and non-sarcopenic cases, respectively (p=0.561). However, median overall survival (OS) of sarcopenic patients was significantly shorter than non-sarcopenic ones (11.8 vs. 30.2 months, p=0.023), and sarcopenia predicted OS independently in multivariate analysis (Hazard ratio=2.63, p=0.029).CONCLUSION Early recognition, treatment, and prevention of sarcopenia may improve long-term survival in EGFRmutant NSCLC patients treated with first-line erlotinib.