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Zambrano P, Manrique-Moreno M, Petit K, Colina JR, Jemiola-Rzeminska M, Suwalsky M, Strzalka K. Differential scanning calorimetry in drug-membrane interactions. Biochem Biophys Res Commun 2024; 709:149806. [PMID: 38579619 DOI: 10.1016/j.bbrc.2024.149806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 03/04/2024] [Accepted: 03/18/2024] [Indexed: 04/07/2024]
Abstract
Differential Scanning Calorimetry (DSC) is a central technique in investigating drug - membrane interactions, a critical component of pharmaceutical research. DSC measures the heat difference between a sample of interest and a reference as a function of temperature or time, contributing essential knowledge on the thermally induced phase changes in lipid membranes and how these changes are affected by incorporating pharmacological substances. The manuscript discusses the use of phospholipid bilayers, which can form structures like unilamellar and multilamellar vesicles, providing a simplified yet representative membrane model to investigate the complex dynamics of how drugs interact with and penetrate cellular barriers. The manuscript consolidates data from various studies, providing a comprehensive understanding of the mechanisms underlying drug - membrane interactions, the determinants that influence these interactions, and the crucial role of DSC in elucidating these components. It further explores the interactions of specific classes of drugs with phospholipid membranes, including non-steroidal anti-inflammatory drugs, anticancer agents, natural products with antioxidant properties, and Alzheimer's disease therapeutics. The manuscript underscores the critical importance of DSC in this field and the need for continued research to improve our understanding of these interactions, acting as a valuable resource for researchers.
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Affiliation(s)
- Pablo Zambrano
- Department of Bioscience, School of Natural Sciences, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany.
| | - Marcela Manrique-Moreno
- Faculty of Natural of Exact Sciences, Chemistry Institute, University of Antioquia, A.A. 1226, Medellin, 050010, Antioquia, Colombia
| | - Karla Petit
- LabMAT, Department of Civil and Environmental Engineering, University of Bío-Bío, Concepción, Chile
| | - José R Colina
- Facultad de Medicina y Ciencia, Universidad San Sebastián, Lientur 1457, Concepción 4080871, Chile
| | - Malgorzata Jemiola-Rzeminska
- Malopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland; Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Mario Suwalsky
- Facultad de Medicina, Universidad Católica de La Santísima Concepción, Concepción, Chile
| | - Kazimierz Strzalka
- Malopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland; Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland.
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Paszt A, Simonka Z, Budai K, Horvath Z, Erdos M, Vas M, Ottlakan A, Nyari T, Szepes Z, Uhercsak G, Maraz A, Torday L, Tiszlavicz L, Olah J, Lazar G. Impact of neoadjuvant FLOT treatment of advanced gastric and gastroesophageal junction cancer following surgical therapy. Front Surg 2023; 10:1148984. [PMID: 37077865 PMCID: PMC10106678 DOI: 10.3389/fsurg.2023.1148984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/09/2023] [Indexed: 04/05/2023] Open
Abstract
IntroductionTherapeutic treatment for advanced-stage (T2–T4) gastroesophageal junction (GEJ) and gastric cancer involves neoadjuvant chemotherapy with subsequent surgical intervention.MethodNeoadjuvant oncological treatment for GEJ and gastric cancer previously consisted of the intravenous administration of epirubicin, cisplatin and fluorouracil (ECF) or epirubicin, cisplatin and capecitabine (ECX) combination (Group 1). The new protocol (FLOT, F: 5-FU, L: leucovorin, O: oxaliplatin, T: docetaxel), included patients with resectable GEJ and gastric cancer who had a clinical stage cT2 or higher nodal positive cN+ disease (Group 2). Between 31 December 2008 and 31 October 2022, the effect of different oncological protocols in terms of surgical outcomes in cases of T2–T4 tumours were retrospectively evaluated. Results of randomly assigned patients from the earlier ECF/ECX protocol (n = 36) (Group 1) and the new FLOT protocol (n = 52) (Group 2) were compared. Effect of different neoadjuvant therapies on tumour regression, types of possible side effects, type of surgery, and oncological radicality of surgical procedures were analysed.ResultsWhen comparing the two groups, we found that in case of the FLOT neoadjuvant chemotherapy (Group 2, n = 52), complete regression was achieved in 13.95% of patients, whereas in the case of ECF/ECX (Group 1, n = 36), complete regression occurred in only 9.10% of patients. Furthermore, in the FLOT group, the mean number of lymph nodes removed was slightly higher (24.69 vs. 20.13 in the ECF/ECX group). In terms of the safety resection margin (proximal), no significant difference was found between the two treatment groups. Nausea and vomiting were the most common side effects. The occurrence of diarrhea was significantly higher in the FLOT group (p = 0.006). Leukopenia and nausea occurred more commonly with the old protocol (Group 1). The rate of neutropenia was lower following FLOT treatment (p = 0.294), with the lack of grade II and III cases. Anaemia occured at a significantly higher rate (p = 0.036) after the ECF/ECX protocol.ConclusionsAs a result of the FLOT neoadjuvant oncological protocol for advanced gastro-esophageal junction and gastric cancer, the rate of complete tumour regression increased significantly. The rate of side effects was also appreciably lower following the FLOT protocol. These results strongly suggest a significant advantage of the FLOT neoadjuvant treatment used before surgery.
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Affiliation(s)
- Attila Paszt
- Department of Surgery, University of Szeged, Szeged, Hungary
- Correspondence: Attila Paszt
| | - Zsolt Simonka
- Department of Surgery, University of Szeged, Szeged, Hungary
| | - Krisztina Budai
- Department of Surgery, University of Szeged, Szeged, Hungary
| | - Zoltan Horvath
- Department of Surgery, University of Szeged, Szeged, Hungary
| | - Marton Erdos
- Department of Surgery, University of Szeged, Szeged, Hungary
| | - Marton Vas
- Department of Surgery, University of Szeged, Szeged, Hungary
| | - Aurel Ottlakan
- Department of Surgery, University of Szeged, Szeged, Hungary
| | - Tibor Nyari
- Department of Medical Physics and Informatics, University of Szeged, Szeged, Hungary
| | - Zoltan Szepes
- 1st Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | | | - Aniko Maraz
- Department of Oncotherapy, University of Szeged, Szeged, Hungary
| | - Laszlo Torday
- Department of Oncotherapy, University of Szeged, Szeged, Hungary
| | | | - Judit Olah
- Department of Oncotherapy, University of Szeged, Szeged, Hungary
| | - Gyorgy Lazar
- Department of Surgery, University of Szeged, Szeged, Hungary
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Farrokhi P, Sadeghi A, Sharifi M, Riechelmann R, Moghaddas A. Efficacy and safety of FLOT regimen vs DCF, FOLFOX, and ECF regimens as perioperative chemotherapy treatments for resectable gastric cancer patients; a report from the middle east. Res Pharm Sci 2022; 17:621-634. [PMID: 36704436 PMCID: PMC9872182 DOI: 10.4103/1735-5362.359430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/13/2022] [Accepted: 08/23/2022] [Indexed: 01/28/2023] Open
Abstract
Background and purpose This study aimed to compare the efficacy and toxicity of perioperative chemotherapy regimens including epirubicin, cisplatin, 5-fluorouracil (ECF), docetaxel, cisplatin, 5-fluorouracil (DCF), leucovorin, 5-fluorouracil, oxaliplatin (FOLFOX), and 5-fluorouracil, leucovorin, oxaliplatin, and docetaxel (FLOT) to identify the most effective chemotherapy regimen with less toxicity. Experimental approach This retrospective cohort study (2014-2021) was based on 152 eligible resectable gastric cancer patients who had received one of the perioperative mentioned chemotherapy regimens and followed for at least two years. The primary endpoint of this study was overall survival (OS), progression-free survival (PFS), overall response rate (ORR), and R0 resection. Findings / Results Of included patients, 21%, 33.7%, 24.3%, and 21% had received ECF, DCF, FOLFOX and FLOT, respectively. After the median 30-month follow-ups, OS was higher with the FLOT regimen in comparison with other regimens (hazard ratio = 0. 276). The median OS of the FLOT regimen was 39 months. Besides, the median OS was 28, 25, and 21 months for DCF, FOLOFX, and ECF regimens, respectively. Moreover, a median PFS of 24, 18, 17, and 14 months was observed for FLOT, DCF, FOLFOX, and ECF regimens, respectively (Log-rank < 0.001). FLOT regimen showed 84. 4% ORR which was notably higher than other groups. Conclusions and implications For resectable gastric cancer patients, the perioperative FLOT regimen led to a significant improvement in patients' OS and PFS versus ECF, DCF, and FOLFOX regimens. As such, the FLOT regimen could be considered the optimal option for managing resectable gastric cancer patients.
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Affiliation(s)
- Pegah Farrokhi
- Department of Pharmacy Practice and Pharmaceutical Sciences, College of Pharmacy, University of Minnesota, Minneapolis, USA
| | - Alireza Sadeghi
- Department of Internal Medicine-Haematology-Oncology Section, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Mehran Sharifi
- Department of Internal Medicine-Haematology-Oncology Section, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran,Corresponding authors: A. Moghaddas, Tel: +98-3137927074, Fax: +98-3136680011 M. Sharifi, Tel: +98-3132368005, Fax: +98-3132350210
| | - Rachel Riechelmann
- Department of Radiology and Oncology, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
| | - Azadeh Moghaddas
- Department of Clinical Pharmacy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran,Corresponding authors: A. Moghaddas, Tel: +98-3137927074, Fax: +98-3136680011 M. Sharifi, Tel: +98-3132368005, Fax: +98-3132350210
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Naveed S, Banday SZ, Qari H, Zahoor S, Batoo AJ, Wahid MA, Haq MFU. Impact of the Interval between Neoadjuvant Chemotherapy and Gastrectomy on Pathological Response and Survival Outcomes for Patients with Locally Advanced Gastric Cancer: A Meta-analysis. Euroasian J Hepatogastroenterol 2022; 12:81-91. [PMID: 36959991 PMCID: PMC10028703 DOI: 10.5005/jp-journals-10018-1382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Background It is still unknown what is the appropriate time between neoadjuvant chemotherapy (NACT) and gastrectomy in cases of gastric cancer. To comprehend the relationship more clearly between waiting time after NACT before having a gastrectomy and survival results, a meta-analysis was done. Methods Retrospective and prospective research from the PubMed, Embase, and Cochrane Library databases were thoroughly reviewed. Research examining the impact of delays of 4, 4-6, and above 6 weeks between the conclusion of NACT and surgery in patients with locally advanced gastric cancer qualified as eligible studies. The pathologic complete response (pCR) rate served as the main outcome indicator. Additional outcome metrics were overall survival (OS) and survival free of illness. Results The meta-analysis showed that patients with locally advanced gastric cancer with a waiting time for surgery of above 4 weeks compared to those with a waiting time for surgery of below 4 weeks saw a significantly higher pCR rate (pCR) [odds ratio (OR): 1.67; 95% confidence interval (CI): 1.07-2.60; p = 0.02]. The meta-analysis found no appreciable OS differences [hazard ratio (HR): 0.93; 95% CI: 0.76-1.13; p = 0.44). Conclusions Time to surgery (TTS) had no effect on the survival results, according to our data. Only in the group where delaying surgery by more than 4 weeks after the end of NACT improved pathological response, but had no effect on survival. How to cite this article Naveed S, Banday SZ, Qari H, et al. Impact of the Interval between Neoadjuvant Chemotherapy and Gastrectomy on Pathological Response and Survival Outcomes for Patients with Locally Advanced Gastric Cancer: A Meta-analysis. Euroasian J Hepato-Gastroenterol 2022;12(2):81-91.
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Affiliation(s)
- Shah Naveed
- Department of Surgical Oncology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Saquib Zaffar Banday
- Department of Medical Oncology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Hasina Qari
- Department of Health and Family Welfare, Srinagar, Jammu and Kashmir, India
| | - Sheikh Zahoor
- Department of Surgical Oncology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Azhar Jan Batoo
- Department of Surgical Oncology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Mir Abdul Wahid
- Department of Surgical Oncology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | - Mohd Fazl Ul Haq
- Department of Surgical Oncology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
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Aranda E, Teruel JA, Ortiz A, Pérez-Cárceles MD, Aranda FJ. Interaction of Docetaxel with Phosphatidylcholine Membranes: A Combined Experimental and Computational Study. J Membr Biol 2022; 255:277-291. [PMID: 35175383 PMCID: PMC9167220 DOI: 10.1007/s00232-022-00219-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/07/2022] [Indexed: 11/06/2022]
Abstract
The antineoplastic drug Docetaxel is a second generation taxane which is used against a great variety of cancers. The drug is highly lipophilic and produces a great array of severe toxic effects that limit its therapeutic effectiveness. The study of the interaction between Docetaxel and membranes is very scarce, however, it is required in order to get clues in relation with its function, mechanism of toxicity and possibilities of new formulations. Using phosphatidylcholine biomimetic membranes, we examine the interaction of Docetaxel with the phospholipid bilayer combining an experimental study, employing a series of biophysical techniques like Differential Scanning Calorimetry, X-Ray Diffraction and Infrared Spectroscopy, and a Molecular Dynamics simulation. Our experimental results indicated that Docetaxel incorporated into DPPC bilayer perturbing the gel to liquid crystalline phase transition and giving rise to immiscibility when the amount of the drug is increased. The drug promotes the gel ripple phase, increasing the bilayer thickness in the fluid phase, and is also able to alter the hydrogen-bonding interactions in the interfacial region of the bilayer producing a dehydration effect. The results from computational simulation agree with the experimental ones and located the Docetaxel molecule forming small clusters in the region of the carbon 8 of the acyl chain palisade overlapping with the carbonyl region of the phospholipid. Our results support the idea that the anticancer drug is embedded into the phospholipid bilayer to a limited amount and produces structural perturbations which might affect the function of the membrane.
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Affiliation(s)
- Elisa Aranda
- Departamento de Bioquímica y Biología Molecular-A, Facultad de Veterinaria, Universidad de Murcia, 30100, Murcia, Spain.,Hospital Universitario Virgen de la Arrixaca, Área de Salud 1, Murcia, Spain
| | - José A Teruel
- Departamento de Bioquímica y Biología Molecular-A, Facultad de Veterinaria, Universidad de Murcia, 30100, Murcia, Spain
| | - Antonio Ortiz
- Departamento de Bioquímica y Biología Molecular-A, Facultad de Veterinaria, Universidad de Murcia, 30100, Murcia, Spain
| | - María Dolores Pérez-Cárceles
- Departamento de Medicina Legal y Forense, Facultad de Medicina, Instituto de Investigación Biomédica (IMIB-Arrixaca), Universidad de Murcia, 30120, Murcia, Spain
| | - Francisco J Aranda
- Departamento de Bioquímica y Biología Molecular-A, Facultad de Veterinaria, Universidad de Murcia, 30100, Murcia, Spain.
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Ghorbani M, Dehghani M, Fahimfar N, Namazi S, Dehshahri A. FLOT (a chemotherapy regimen for gastric/esophagogastric junction cancer): to be treated as a highly emetogenic regimen or a moderately emetogenic one? Comparison of the emetogenic potential of FLOT versus FOLFOX and TAC regimens. Support Care Cancer 2022; 30:3865-3873. [PMID: 35038031 DOI: 10.1007/s00520-022-06832-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/11/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE The current study aimed at investigating the efficacy of aprepitant-containing triple antiemetic regimen in FLOT (fluorouracil + leucovorin + oxaliplatin + docetaxel) recipients as well as the emetogenic potential of FLOT regimen, through comparison of nausea and vomiting rates in a moderately emetogenic chemotherapy, FLOT, and a highly emetogenic chemotherapy recipients. STUDY Patients planned to receive one of FLOT, FOLFOX (fluorouracil + leucovorin + oxaliplatin/moderate-emetic risk), or TAC (docetaxel + doxorubicin + cyclophosphamide/high-emetic risk) regimens were recruited. All patients were treated with the same triple antiemetic regimen containing aprepitant. RESULTS A total of 165 chemotherapy-naïve patients (52 FLOT recipients) were eligible to enter the study. At the end of day 5, "complete response" (primary efficacy endpoint) was achieved by 84.6%, 63.5%, and 61.5% of the FLOT-receiving patients in acute, delayed, and overall phases, respectively. A significant difference was seen among the odds of FLOT recipients and FOLFOX recipients concerning "complete response" achievement in delayed (p = 0.014) and overall (p = 0.017) phases, "no emesis" in delayed (p = 0.018) and overall (p = 0.010) phases, and also "complete protection" in acute (p = 0.023), delayed (p = 0.009), and overall (p = 0.006) phases; however, the difference between the odds of FLOT recipients and TAC recipients, in relation to achieving these endpoints, was insignificant. FLOT group showed significantly faster time-to-antiemetic regimen failure and time-to-first emetic episode in comparison with the FOLFOX group, which was insignificant in comparison with the TAC group. CONCLUSION According to the findings, FLOT has to be considered as a high-emetic-risk regimen; provided that, as recommended by the antiemetic guidelines towards better management of delayed nausea and vomiting induced by highly emetogenic regimens, executing clinical trials concerning the efficacy of continuing dexamethasone on days 2-4 in aprepitant-containing triple antiemetic regimen schedule is required.
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Affiliation(s)
- Marziyeh Ghorbani
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Dehghani
- Hematology Research Center, Department of Hematology and Medical Oncology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Noushin Fahimfar
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Soha Namazi
- Research Center for Rational Use of Drugs, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Ali Dehshahri
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
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FLOT-regimen Chemotherapy and Transthoracic en bloc Resection for Esophageal and Junctional Adenocarcinoma. Ann Surg 2021; 274:814-820. [PMID: 34310355 DOI: 10.1097/sla.0000000000005097] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND AIMS The FLOT4-AIO trial established the FLOT regimen (Fluorouracil, Leucovorin, Oxaliplatin, and Docetaxel) as a compelling option for gastric, junctional and esophageal adenocarcinoma. Data on FLOT with en-bloc transthoracic esophagectomy (TTE) are limited. This study explored operative complications, tolerance, toxicity, physiological impact, and oncologic outcomes. STUDY DESIGN An observational cohort study on consecutive patients at 3 tertiary centers undergoing FLOT and TTE. Toxicity, operative complications (per ECCG definitions), tumor regression grade (TRG), recurrences and survival were documented, as well as pre- and post FLOT assessment of sarcopenia and pulmonary physiology. RESULTS 175 patients (cT2-4a, Nany) commenced treatment, 84% male, median age 65, 94% cT3/T4a, 73% cN+. 89% completed 4 preoperative cycles, and 35% all cycles. Grade 3/4 toxicities included neutropenia (12%), diarrhoea (13%), and infection (15%). Sarcopenia increased from 18% to 37% (p = 0.020), and diffusion capacity (DLCO) decreased by 8% (-34%+25%; p < 0.010). On pathology, ypT3/4 was 59%, and ypN+54%, with 10% TRG 1, 14% TRG 2, and 76% TRG3-5, and R0 95%. 161 underwent TTE, with an in-hospital mortality of 0.6%, 24%-pneumonia, 11%-anastomotic leak, and Clavien Dindo ≥III in 27%. At a median follow up of 12 months (1-85), 33 relapsed, 8 (5%) locally, and 3yr survival was 60%. CONCLUSION FLOT and en bloc TTE was safe, with no discernible impact on operative complications, with 24% having a major pathologic response. Caveats include a limited pathologic response in the majority, and negative impact on muscle mass and lung physiology, and low use of adjuvant cycles. These data may provide a real-world benchmark for this complex care pathway.
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Bausys A, Ümarik T, Luksta M, Reinsoo A, Rackauskas R, Anglickiene G, Kryzauskas M, Tõnismäe K, Senina V, Seinin D, Bausys R, Strupas K. Impact of the Interval Between Neoadjuvant Chemotherapy and Gastrectomy on Short- and Long-Term Outcomes for Patients with Advanced Gastric Cancer. Ann Surg Oncol 2021; 28:4444-4455. [PMID: 33417120 DOI: 10.1245/s10434-020-09507-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/04/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND The optimal time between neoadjuvant chemotherapy (NAC) and gastrectomy for gastric cancer (GC) remains unknown. This study aimed to investigate the association between the time-to-surgery (TTS) interval and the major pathologic response (mPR). METHODS In this study, 280 consecutive GC patients who underwent NAC followed by gastrectomy between 2014 and 2018 were retrospectively analyzed by the use of prospectively collected databases from three major GC treatment centers in Lithuania and Estonia. Based on TTS, they were grouped into three interval categories: the early-surgery group (ESG: ≤ 30 days; n = 70), the standard-surgery group (SSG: 31-43 days; n = 138), and the delayed-surgery group (DSG: ≥ 44 days, n = 72). The primary outcome of the study was the mPR rate. The secondary end points were postoperative morbidity, mortality, oncologic safety (measured as the number of resected lymph nodes and radicality), and long-term outcomes. RESULTS The mPR rate for the ESG group (32.9%) was significantly higher than for the SSG group (20.3%) or the DSG group (16.7%) (p = 0.047). Furthermore, after adjustment for patient, tumor, and treatment characteristics, the odds for achievement of mPR were twofold higher for the patients undergoing early surgery (odds ratio [OR] 2.09; 95% conflidence interval [CI] 1.01-4.34; p = 0.047). Overall morbidity, severe complications, 30-day mortality, R0 resection, and retrieval of at least 15 lymph nodes rates were similar across the study groups. In addition, the long-term outcomes did not differ between the study groups. CONCLUSIONS This study suggests that an interval of more than 30 days between the end of NAC and gastrectomy is associated with a higher mPR rate, the same oncologic safety of surgery, and similar morbidity and mortality.
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Affiliation(s)
- Augustinas Bausys
- Clinic of Gastroenterology, Nephrourology, and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania. .,Department of Abdominal Surgery and Oncology, National Cancer Institute, Vilnius, Lithuania.
| | - Toomas Ümarik
- Upper Gastrointestinal Tract Surgery Department, North Estonia Medical Centre, Tallinn, Estonia
| | - Martynas Luksta
- Clinic of Gastroenterology, Nephrourology, and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Arvo Reinsoo
- Upper Gastrointestinal Tract Surgery Department, North Estonia Medical Centre, Tallinn, Estonia
| | - Rokas Rackauskas
- Clinic of Gastroenterology, Nephrourology, and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Giedre Anglickiene
- Department of Medical Oncology, National Cancer Institute, Vilnius, Lithuania
| | - Marius Kryzauskas
- Clinic of Gastroenterology, Nephrourology, and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Kristina Tõnismäe
- Pathology Department, North Estonia Medical Centre, Tallinn, Estonia
| | - Veslava Senina
- National Centre of Pathology, Affiliate of Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
| | - Dmitrij Seinin
- National Centre of Pathology, Affiliate of Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania
| | - Rimantas Bausys
- Clinic of Gastroenterology, Nephrourology, and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania.,Department of Abdominal Surgery and Oncology, National Cancer Institute, Vilnius, Lithuania
| | - Kestutis Strupas
- Clinic of Gastroenterology, Nephrourology, and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
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Adenis A, Samalin E, Mazard T, Portales F, Mourregot A, Ychou M. [Does the FLOT regimen a new standard of perioperative chemotherapy for localized gastric cancer?]. Bull Cancer 2020; 107:54-60. [PMID: 31980145 DOI: 10.1016/j.bulcan.2019.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 12/22/2019] [Accepted: 12/26/2019] [Indexed: 11/30/2022]
Abstract
FLOT-4 study recently reports that in patients with gastric cancer, perioperative chemotherapy with 5-fluorouracile, leucovorin, oxaliplatin and docetaxel (FLOT regimen) increases survival over standard ECF/ECX regimen (epirubicine, cisplatine and 5-fluorouracile [or capecitabine]). Does this study, make FLOT a new standard of perioperative chemotherapy for localized gastric cancer? Seven hundred and sixteen patients were included into that randomized study. Thirty seven per cent and 46% of the patients received the full planned treatment in the ECF/ECX group and in the FLOT group, respectively. The primary aim of FLOT-4 was met as FLOT significantly reduced the relative risk of death vs. ECF/ECX (HR: 0.77; 95% CI: 0.63-0.94; P=0.012). Median survival is increased by 15 months with FLOT (50 months vs. 35 months). FLOT also provided better complete resection rates, better complete pathological response rates, and better disease-free survival than ECF/ECX. FLOT is more likely associated with the following adverse events: diarrheas, leuco-neutropenia (including 51% of severe ones), infections (including 18% of severe ones), and peripheral neuropathy. On the contrary, ECF/ECX provided more likely severe nausea and vomiting, severe anemia, and thromboembolic events. Overall, the number of patients with related serious adverse events (including those that occurred during hospital stay for surgery) was similar in the two groups, as was the number of toxic deaths and postoperative deaths. FLOT should be regarded as the recommended perioperative chemotherapy for patients with gastric cancer or adenocarcinoma of the gastro-esophageal junction. However, some doubts remain as regards of its use in the daily practice for unselected patients.
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Affiliation(s)
- Antoine Adenis
- Institut du cancer de Montpellier, 208, avenue des Apothicaires, 34298 Montpellier, France; IRCM, Inserm, Université Montpellier, ICM, Montpellier, France.
| | - Emmanuelle Samalin
- Institut du cancer de Montpellier, 208, avenue des Apothicaires, 34298 Montpellier, France
| | - Thibault Mazard
- Institut du cancer de Montpellier, 208, avenue des Apothicaires, 34298 Montpellier, France
| | - Fabienne Portales
- Institut du cancer de Montpellier, 208, avenue des Apothicaires, 34298 Montpellier, France
| | - Anne Mourregot
- Institut du cancer de Montpellier, 208, avenue des Apothicaires, 34298 Montpellier, France
| | - Marc Ychou
- Institut du cancer de Montpellier, 208, avenue des Apothicaires, 34298 Montpellier, France; IRCM, Inserm, Université Montpellier, ICM, Montpellier, France
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