Panagiotis Filis

Dr. Panagiotis Filis

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

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

Representative Publications

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24 November 2024 in Drug Discovery Today
Verified
Journal Article
Closed access
PFPanagiotis Filis
Panagiotis Filis
DSDimitrios Salgkamis
Dimitrios Salgkamis
AMAlexios Matikas
Alexios Matikas
IZIoannis Zerdes
Ioannis Zerdes

1 February 2023 in World Neurosurgery: X
Verified
Journal Article
Open access
NVNikolaos Vlachos
Nikolaos Vlachos
MLMarios G. Lampros
Marios G. Lampros
PFPanagiotis Filis
Panagiotis Filis
SVSpyridon Voulgaris
Spyridon Voulgaris
George A. AlexiouGeorge A. Alexiou
George A. Alexiou
The standard of care in patients with solitary brain metastasis involves surgical resection and postoperative whole-brain radiotherapy (WBRT). However, WBRT is associated with adverse effects, mainly neurocognitive deterioration. Stereotactic radiosurgery (SRS) is a more targeted form of radiation therapy that could be as effective as WBRT without the detrimental neurocognitive decline. We performed the first systematic review and meta-analysis comparing postoperative SRS versus postoperative WBRT in patients with one resected brain metastasis. PubMed, Scopus, and Cochrane library were systematically searched for studies comparing the efficacy of the two radiation modalities in terms of local and distant brain control, leptomeningeal disease control, and overall survival. Additionally, we extracted patients' neurocognitive function and quality of life after each postoperative radiation form. Four studies with 248 patients (128: WBRT, 120: SRS) were included in our analysis. There was no difference between SRS and WBRT in the risk of local recurrence (RR = 0.92, CI = 0.51-1.66, p = 0.78, I2 = 0%) and leptomeningeal disease (RR = 1.21, CI = 0.49-2.98, p = 0.67, I2 = 18%), neither in the patients' overall survival (HR = 1.06, CI = 0.61-1.85, p = 0.83, I2 = 63%). Nevertheless, SRS appeared to increase the risk of distant brain failure (RR = 2.03, CI = 0.94-4.40, p = 0.07, I2 = 61%). Neurocognitive function and quality of life in the SRS group were equal or superior to the WBRT group. Although SRS may increase the risk of distant brain failure, it appears to be as effective as WBRT in terms of local control, risk of leptomeningeal disease, and overall survival while sparing the patients of the detrimental, WBRT-associated cognitive deterioration.

13 September 2022 in Journal of Diabetes Science and Technology
Verified
Journal Article
Open access
EREvangelos Rizos
Evangelos Rizos
AKAfroditi Kanellopoulou
Afroditi Kanellopoulou
PFPanagiotis Filis
Panagiotis Filis
GMGeorgios Markozannes
Georgios Markozannes
KCKonstantinos Chaliasos
Konstantinos Chaliasos
KTKostas Tsilidis
Kostas Tsilidis
Introduction: Comprehensive characteristics of the glycemic profile for prediabetes derived by continuous glucose monitoring (CGM) are unknown. We evaluate the difference of CGM profiles between individuals with prediabetes and normoglycemic individuals, including the response to oral glucose tolerance test (OGTT). Methods: Individuals with prediabetes matched for age, sex, and BMI with normoglycemic individuals were instructed to use professional CGM for 1 week. OGTT was performed on the second day. The primary outcomes were percentages of glucose readings time below range (TBR): <54 or 180 or >250 mg/dL. Area under the curve (AUC) was calculated following the OGTT. Glucose variability was depicted by coefficient of variation (CV), SD, and mean amplitude of glucose excursion (MAGE). Wilcoxon sign-ranked test, McNemar mid P-test and linear regression models were employed. Results: In all, 36 participants (median age 51 years; median body mass index [BMI] = 26.4 kg/m2) formed 18 matched pairs. Statistically significant differences were observed for 24-hour time in range (TIR; median 98.5% vs. 99.9%, P = .013), time above range (TAR) >180 mg/dl (0.4% vs. 0%, P = .0062), and 24-hour mean interstitial glucose (113.8 vs. 108.8 mg/dL, P = .0038) between people with prediabetes compared to normoglycemic participants. Statistically significant differences favoring the normoglycemic group were found for glycemic variability indexes (median CV 15.2% vs. 11.9%, P = .0156; median MAGE 44.3 vs. 33.3 mg/dL, P = 0.0043). Following OGTT, the AUC was significantly lower in normoglycemic compared to the prediabetes group (median 18615.3 vs. 16370.0, P = .0347 for total and 4666.5 vs. 2792.7, P = .0429 for incremental 2-hour post OGTT). Conclusion: Individuals with prediabetes have different glucose profiles compared to normoglycemic individuals. CGM might be helpful in individuals with borderline glucose values for a more accurate reclassification.

6 March 2025 in Diabetes Technology & Therapeutics
Verified
Journal Article
Closed access
EREvangelos C. Rizos
Evangelos C. Rizos
GMGeorgios Markozannes
Georgios Markozannes
NCNikolaos Charitakis
Nikolaos Charitakis
PFPanagiotis Filis
Panagiotis Filis
ASAnastasia E. Stoimeni
Anastasia E. Stoimeni
KTKonstantinos K. Tsilidis
Konstantinos K. Tsilidis
Background: Continuous glucose monitoring (real-time CGM [RT-CGM] and retrospective [professional] CGM [non-RT-CGM]) is an emerging tool to assess glucose levels and variability. We performed a meta-analysis of randomized controlled trials (RCTs) to assess the effect of RT/non-RT-CGM on type 1 (T1D), type 2 (T2D), and diabetes in pregnancy (DiP) compared with self-monitoring of blood glucose (BGM). Methods: We searched PubMed/EMBASE/Cochrane Central Register of Controlled Trials until October 2024. The coprimary outcomes were the weighted mean change differences (WMCDs and absolute differences) from baseline in glycated hemoglobin (HbA1c) and in time in range (TIR%), time below range (TBR%), and time above range (TAR%). Results: A total of 64 RCTs were analyzed: (1) RT-CGM/T1D: CGM was superior to BGM for HbA1c reduction (WMCD -0.24, 95% confidence interval [CI]: -0.35; -0.14, I2 = 71%), decrease in TBR <70 mg/dL (WMCD -2.41, 95% CI: -3.46; -1.35, I2 = 96%), decrease in TBR < 54 mg/dL (WMCD -1.18 95% CI: -1.9; -0.47, I2 = 97%), decrease in TAR >180 mg/dL (WMCD -2.99, 95% CI: -5.28; -0.71, I2 = 92%), decrease in TAR >250 mg/dL (WMCD -3.99, 95% CI: -5.76; -2.21, I2 = 92%), and increase in TIR 70-180 mg/dL (WMCD 5.57, 95% CI: 4.13; 7.01, I2 = 84%); (2) RT-CGM/T2D: CGM was superior to BGM for HbA1c reduction (WMCD -0.40, 95% CI: -0.55; -0.24, I2 = 52%), decrease in TAR > 180 mg/dL (WMCD -6.32, 95% CI: -9.87; -2.78, I2 = 84%), decrease in TAR > 250 mg/dL (WMCD -5.73, 95% CI: -8.96; -2.49, I2 = 89%), and increase in TIR 70-180 mg/dL (WMCD 5.46, 95% CI: 2.76; 8.16, I2 = 69%); (3) RT-CGM/DiP: CGM was superior to BGM for TIR 63-140 mg/dL (WMCD: 17.77, 95% CI: 4.17; 31.36, I2 = 92%). No benefit was shown for HbA1c, TBR < 63 mg/dL, TAR > 140 mg/dL, and most of the maternal and neonatal outcomes of interest; (4) Non-RT CGM: HbA1c significantly decreased with non-RT CGM compared with BGM in T2D (WMCD -0.35, 95% CI: -0.5; -0.2, I2 = 19%). Discussion: In T1D and T2D, RT-CGM decreased HbA1c and increased time in target range for glycemia (70-180 mg/dL) while decreasing time spent in hypoglycemia (T1D) and time in hyperglycemia (T1D, T2D).

25 December 2024 in Critical Reviews in Oncology/Hematology
Verified
Journal Article
Open access
PFPanagiotis Filis
Panagiotis Filis
GMGeorgios Markozannes
Georgios Markozannes
DCDoris Sm Chan
Doris Sm Chan
DMDavide Mauri
Davide Mauri
TFTheodoros Foukakis
Theodoros Foukakis
KTKostas Tsilidis
Kostas Tsilidis
To contribute to the refinement of future physical activity (PA) guidelines, which have remained mostly generic until now, we performed an umbrella review of meta-analyses for PA in cancer survivors. Medline and Scopus databases were searched in January 2024 for systematic reviews and meta-analyses on the association/effect of any type of PA in every cancer type and for any studied outcome. Statistically significant meta-analyses were categorized into four evidence groups (strong, highly suggestive, suggestive, weak) using pre-established grading criteria. A total of 102 publications reporting 740 meta-analytic associations were identified, including breast (n = 427), prostate (n = 104), hematological (n = 58), colorectal (n = 79) and lung (n = 54) cancer survivors. Overall, 401 (54 %) associations were nominally statistically significant, of which 16 were categorised as strong, 10 as highly suggestive, and 93 as suggestive evidence. In breast cancer, there was strong or highly suggestive evidence that post-diagnosis PA is associated with lower all-cause mortality, recurrence, cancer-related fatigue, depression, and higher mental health, body strength, aerobic capacity, and weight loss. In prostate cancer, strong evidence was identified for the positive association of PA with cardiovascular fitness, quality of life and fatigue amelioration. In colorectal cancer, strong and highly suggestive evidence supported the association of PA with lower all-cause mortality. In lung cancer, strong evidence supported the association of preoperative combination of breathing exercise and PA with reduced length of hospital stay. This grading of the entirety of the available evidence can facilitate robust introduction of targeted exercise prescription in oncology care as standard practice.

22 January 2025 in JNCI: Journal of the National Cancer Institute
Verified
Journal Article
Open access
IZIoannis Zerdes
Ioannis Zerdes
PFPanagiotis Filis
Panagiotis Filis
GFGeorgios Fountoukidis
Georgios Fountoukidis
AEAli Inan El-Naggar
Ali Inan El-Naggar
FKFoteini Kalofonou
Foteini Kalofonou
AVAntonis Valachis
Antonis Valachis
Background: Although precision oncology has rapidly been developed in recent years, its real-world impact and challenges in health care implementation remain underexplored. Through a meta-analysis of real-world evidence (RWE), we aimed at investigating the applicability and clinical impact of comprehensive genome profiling (CGP) in cancer patients with metastatic solid tumors. Methods: We systematically searched Medline, Embase, and Web of Science for RWE studies on CGP and matched therapies in metastatic solid tumors (publication period: 2012-2023). Pooled proportions of actionable genomic alterations, patients treated with matched targeted therapies, treatment, and survival outcomes were calculated. Data from Swedish cancer registries were used as a case study for nationwide CGP implementation. Results: Out of the 7218 identified studies, 144 were included in our analysis; 59.8% of CGP-tested patients had actionable genomic alterations, with 15.6% (95% CI = 13.4% to 18.2%) of them having received targeted therapy. Objective response was seen in 23.9% (95% CI = 20.8% to 27.3%). Overall, CGP-guided treatment was correlated with prolonged progression-free survival (pooled hazard ratio [HR] = 0.63; 95% CI = 0.56 to 0.70; 18 studies) and overall survival (pooled HR = 0.60; 95% CI = 0.51 to 0.70; 21 studies) when compared to conventional treatment. Meta-regression time projections analyses showed that these rates will steadily increase by 2030. Conclusions: Pooled analyses of RWE studies indicate that approximately one-fourth of the patients receiving CGP-matched treatment have an objective response. By utilizing meta-regression projections, our nationwide cancer registry case study offers insights into the potential of precision oncology for patients with metastatic cancer and to inform future health care strategies.