简介：AbstractThe management of pancreatic cancer has dramatically changed since the first major randomized trial published in 2001 by the European Study Group for Pancreatic Cancer (ESPAC) stimulated the development of multimodality oncosurgical therapies. ESPAC-1 demonstrated a survival improvement from upfront surgery of only 8%, increasing to 21% 5-year survival for 5-fluorouracil/folinic acid but only 10.8% for chemoradiotherapy. ESPAC-4 has shown a 5-year survival rate of 30% for all patients without restriction of 30% using a combination of gemcitabine and capecitabine, rising to 40% in those with an R0 resection margin, or nearly 50% in those with N0 lymph node status. In selected patients with favorable prognostic features mFOLFIRINOX can produce a 50% 5-year survival rate but with added toxicity. While a positive resection margin is associated with an increased likelihood of local recurrence, this of itself is not the contributor to reduced survival, but rather reflects the increased probability of systemic disease. Thus, strategies aimed at local control, may reduce subsequent local progression, but will not improve overall survival. Neoadjuvant chemotherapy is increasingly utilized in cases of borderline resectable or locally advanced pancreatic cancer, but there is still a lack of proof of concept studies. High-quality evidence from randomized controlled trials to identify the indications and benefits of neoadjuvant therapy in pancreatic cancer are required. The use of patient-derived tumor organoids may predict response to chemotherapy which could open a new opportunity in pancreatic cancer treatment, stratifying patients into treatment groups based on their response to these therapies in the laboratory.

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简介：AbstractGastric cancer, which has a high incidence and poor prognosis, remains a therapeutic challenge. Recently, neoadjuvant therapy has attracted increasing attention due to high recurrence rate and low survival rate after resection in most patients with advanced stage. Clinical trials show that neoadjuvant approaches confer a significant survival advantage for resectable locally advanced gastric cancer. The specific advantages of chemoradiotherapy compared with chemotherapy have not been clarified; optimal regimens and cycles, particularly in the preoperative setting, should be studied further; and trials aimed at determining the role of targeted and immunological therapies should be conducted.

简介：AIM:Toinvestigatetheefficacyofneoadjuvantchemoradiotherapy(NACRT)forresectabilityoflocallyadvancedgastriccancer(LAGC).METHODS:BetweenNovember2007andJanuary2014,29patientswithLAGC(clinicallyT3withdistalesophagusinvasion/T4orbulkyregionalnodemetastasis)thatweretreatedwithNACRTfollowedbyD2gastrectomywereincludedinthisstudy.ResectabilitywasevaluatedwithradiologicandendoscopicexamsbeforeandafterNACRT.Usingthreedimensionalconformalradiotherapy,patientsreceived45Gy,withadailydoseof1.8Gy.Theentiretumorextentandtheregionalmetastaticlymphnodeswereincludedinthegrosstumorvolume.PatientspresentingwitharesectabletumorafterNACRTreceivedatotalorsubtotalgastrectomywithD2dissection.ThepathologictumorresponsewasevaluatedusingJapaneseGastricCancerAssociationhistologicevaluationcriteria.PostoperativemorbiditywasevaluatedusingtheNationalCancerInstitute-CommonTerminologyCriteriaforAdverseEventsversion4.0.Overallsurvival(OS)andprogression-freesurvival(PFS)rateswereestimatedusingaKaplan-Meieranalysisandcomparedusingthelog-ranktest.RESULTS:Allpatientswereassessedasunresectablecases.Twenty-fourpatients(24/29;82.8%)showedLAGConpositronemissiontomography-computedtomography(CT)andcontrast-enhancedCT,whereasfourpatients(4/29;13.8%)withvagueinvasionorabutmenttoanadjacentorganunderwentdiagnosticlaparoscopy.Onepatient(1/29;3.4%),initiallyassessedasaresectablecase,underwentan'openandclosure'afterthetumorwasfoundtobeunresectable.Abutmenttoanadjacentorgan(34.5%)wasthemostcommonreasonforNACRT.TheclinicalresponserateonemonthafterNACRTwas44.8%.AfterNACRT,69%(20/29)ofpatientshadaresectabletumor.Ofthe20patientswitharesectabletumor,18patients(62.1%)underwentaD2gastrectomy.TheR0resectionratewas94.4%andtwopatients(2/18;11.1%)showedacompleteresponse.Themedianfollow-updurationwas13.5mo.Theone-yearOSandPFS

简介：AbstractImmune checkpoint inhibitors (ICIs) have revolutionized the approach to advanced and locally advanced non-small-cell lung cancer (NSCLC). Antibodies blocking inhibitory immune checkpoints, such as programmed death 1 (PD-1) and its ligand (PD-L1), have remarkable antitumor efficacy and have been approved as a standard first- or second-line treatment in non-oncogene-addicted advanced NSCLC. The successful application of immunotherapy in advanced lung cancer has motivated researchers to further evaluate its clinical role as a neoadjuvant setting for resectable NSCLC and for improved long-term overall survival and curative rates. In this review, we discuss the efforts that incorporate ICIs into the treatment paradigm for surgically resectable lung cancer. We reviewed the early-phase results from neoadjuvant clinical trials, the landscape of the majority of ongoing phase III trials, and discuss the prospects of ICIs as a curative therapy for resectable lung cancer. We also summarized the potential biomarkers and beneficiaries involved in the current study, as well as the remaining unresolved challenges for neoadjuvant immunotherapy.

简介：AbstractPancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with poor survival. Local control through surgical resection paired with radiotherapy and chemotherapy comprise the primary tenets of treatment. Debate exists regarding the timing of treatment and ordering of systemic therapy and resection in the management of early stage disease. The goal of this study was to review the literature and describe the contemporary evidence basis for the role of neoadjuvant therapy (NAT) in the setting of upfront resectable (UP-R) PDAC. Five databases were searched in parallel to identify relevant original articles investigating neoadjuvant therapy where at least 1 study arm contained UP-R PDAC; studies with only borderline resectable or locally advanced disease were excluded. Due to the diversity in NAT regimens and study design between trials, qualitative analyses were performed to investigate patient selection, impact on perioperative and survival outcomes, safety, and cost effectiveness. Thirty-five studies met inclusion criteria, of which 24 unique trials are discussed here in detail. These studies included those trials using single agents as well as more recent trials comparing modern multiagent therapies, and several large database analyses. Overall the data suggest that NAT is safe, may confer survival benefit for appropriately selected patients, is cost effective, and is an appropriate approach for UP-R PDAC. Nevertheless, the risk for disease progression during upfront medical therapy, requires appropriate patient identification and close monitoring, and emphasizes the need for further discovery of more effective chemotherapeutics, useful biomarkers or molecular profiles, and additional prospective comparative studies.

简介：比较在主要debulking外科(PDS)和neoadjuvant化疗之间的幸存和perioperative病态的目的在与先进上皮的卵巢的癌症(EOC)对待病人由间隔debulking外科(NAC/IDS)列在后面。我们回顾地与阶段IIIC或IVEOC考察了67个病人的方法从2006年1月在北京大学癌症医院对待到2009年6月。在那里，37和30个病人分别地经历了PDS和NAC/标志。结果在全面幸存(OS)或没有前进的幸存(PFS)的差别都没在NAC/IDS组和PDS组之间被观察(OS：41.2对39.1个月，P=0.23；PFS：27.1对24.3个月，P=0.37)。最佳的debulking率在NAC/IDS组是60%，它在PDS组(32.4%)(P=0.024)比那显著地高。NAC/IDS组显著地有比PDS的肠的功能的估计的血损失和输送，更低的nasogastricintubation率，和更早的移动和恢复组织的更少的intraoperative(P<0.05)。结论NAC/IDS不比PDS侵略，并且关于最佳的cytoreduction率，intraoperative血损失，和手术后的恢复提供优点，没有显著地损害与在对待有阶段IIIC或IVEOC的病人的PDS相比的幸存。因此，NAC/IDS可以是为EOC病人的一种珍贵治疗选择。

简介：Surgeryfollowingneoadjuvantchemoradiotherapy(NCRT)isacommonmultidisciplinarytreatmentforresectableesophagealcancer(EC).Afteranalyzing12randomizedcontrolledtrials(RCTs),wediscussthekeyissuesofsurgeryinthemanagementofresectableEC.Alongwithchemoradiotherapy,NCRTisrecommendedforpatientswithsquamouscellcarcinoma(SCC)andadenocarcinoma(AC),andmostchemotherapyregimensarebasedoncisplatin,fluorouracil(FU),orboth(CF).However,taxane-basedschedulesoradditionalstudies,togetherwithnewerchemotherapies,arewarranted.Innineclinicaltrials,post-operativecomplicationsweresimilarwithoutsignificantdifferencesbetweentwotreatmentgroups.In-hospitalmortalitywassignificantlydifferentinonly1outof10trials.HalfoftherandomizedtrialsthatcompareNCRTwithsurgeryinECdemonstrateanincreaseinoverallsurvivalordisease-freesurvival.NCRToffersagreatopportunityformarginnegativeresection,decreaseddiseasestage,andimprovedloco-regionalcontrol.However,NCRTdoesnotaffectthequalityoflifewhencombinedwithesophagectomy.Futuretrialsshouldfocusontheidentificationofoptimumregimensandselectionofpatientswhoaremostlikelytobenefitfromspecifictreatmentoptions.

简介：Objective:Toassesstheresponserateofpatientswithrectaladenocarcinomatoneoadjuvanttherapyandtoidentifythepredictorsofhistologicalregressionafterneoadjuvantradiotherapy(RT)orconcurrentchemoradiotherapy(CCRT).Methods:Thisstudyrecruited64patients.Thepatientshadresectablecancerofthelowerandthemiddlerectum(T3/T4and/orN+)withoutdistantmetastasisandreceivedneoadjuvantRTorCCRTfollowedbyradicalsurgerywithtotalmesorectalexcision(TME)betweenJanuary2006andDecember2011.Thepatientswereclassifiedintonon-response(NR),partialresponse(PR),andpathologiccompleteresponse(pCR)basedontheDworaktumorregressiongradingsystem.Results:Themedianageofpatientswas57years(rangingfrom22to85).Atotalof24patientsweretreatedwithneoadjuvantCCRT,whereas40patientsweretreatedwithRTalone.Abdominoperinealresection(APR)wasperformedon29patients(45%).AnteriorresectionwithTMEwasperformedon34patients(53%).Onepatienthadlocalresection.Histologically,12(19%),24(73%),and28(44%)patientsexhibitedpCR,PR,andNR,respectively.Univariateanalysisrevealedthatthepredictorsoftumorregressionwereasfollows:theabsenceoflymphnodeinvolvementfrominitialimaging(cN0)(P=0.021);normalinitialcarcinoembryonicantigen(CEA)level(P=0.01);hemoglobinlevel≥12g/dl(P=0.009);CCRT(P=0.021);andtumordownstaginginimaging(P=0.001).MultivariateanalysisshowedthatthemainpredictorsofpCRwereCTcombinedwithneoadjuvantRT,cN0stage,andtumorregressiononimaging.Conclusions:IdentifyingthepredictorsofpCRfollowingneoadjuvanttherapyaidstheselectionofresponsivepatientsfornonaggressivesurgicaltreatmentandpossiblesurveillance.

简介：Objective:Theaimofthisprospective,single-armphaseIItrialwastoconfirmthesafetyandefficacyofneoadjuvantchemotherapy(NAC)usingoxaliplatinpluscapecitabine(CapOX)forpatientswithoperablelocallyadvancedcoloncancer(CC).Methods:Patientswithcomputedtomography-definedT4orlymphnode-positiveCCswereenrolled.Afterradiologicalstaging,patientsweretreatedwithatleast2cyclesofNACconsistingof130mg/m2oxaliplatinond1,plus1,000mg/m2capecitabinetwicedailyfor14devery3weeks,followedbysurgery,andthenwiththerestcyclesofadjuvantchemotherapy.Radiologicalresponsewasevaluatedafter2cyclesofNAC.Tumorresponse,treatmenttoxicity,andsurgicalcomplicationswererecorded.Thepathologicalresponsetotherapywasevaluatedaccordingtothetumorregressiongrade(TRG)score.Theprimaryendpointwaspathologictumorresponse.ThistrialisregisteredinClinicalTrials.gov(No:NCT02415829).Results:Forty-sevenpatientswereenrolledinthestudy.Forty-twopatientscompletedtheplannedtreatments.Thetotalradiologicalresponseratewas68%(32/47),includingcompleteandpartialresponseratesof2%(1/47)and66%(31/47),respectively.Stablediseasewasobservedin32%(15/47)andprogressivediseasewasobservedinnone.Completepathologicresponse,majorregression,andatleastmoderateregressionwereachievedin1(2%),2(4%),and29(62%)patients,respectively.Fourpatientsdevelopedgrade3treatmenttoxicities.Onepatientwithwoundinfectionoccurredafteroperation(1/47,2%).Therewasnotreatment-relateddeath.Conclusions:OurresultssuggestthatNACwithCapOXisaneffectiveandsafetreatmentoptionforpatientswithlocallyadvancedCCs.

简介：AbstractBackground:The neoadjuvant chemotherapy is increasingly used in advanced gastric cancer, but the effects on safety and survival are still controversial. The objective of this meta-analysis was to compare the overall survival and short-term surgical outcomes between neoadjuvant chemotherapy followed by surgery (NACS) and surgery alone (SA) for locally advanced gastric cancer.Methods:Databases (PubMed, Embase, Web of Science, Cochrane Library, and Google Scholar) were explored for relative studies from January 2000 to January 2021. The quality of randomized controlled trials and cohort studies was evaluated using the modified Jadad scoring system and the Newcastle-Ottawa scale, respectively. The Review Manager software (version 5.3) was used to perform this meta-analysis. The overall survival was evaluated as the primary outcome, while perioperative indicators and post-operative complications were evaluated as the secondary outcomes.Results:Twenty studies, including 1420 NACS cases and 1942 SA cases, were enrolled. The results showed that there were no significant differences in overall survival (P = 0.240), harvested lymph nodes (P = 0.200), total complications (P = 0.080), and 30-day post-operative mortality (P = 0.490) between the NACS and SA groups. However, the NACS group was associated with a longer operation time (P < 0.0001), a higher R0 resection rate (P = 0.003), less reoperation (P = 0.030), and less anastomotic leakage (P = 0.007) compared with SA group.Conclusions:Compared with SA, NACS was considered safe and feasible for improved R0 resection rate as well as decreased reoperation and anastomotic leakage. While unbenefited overall survival indicated a less important effect of NACS on long-term oncological outcomes.

简介：AbstractBackground:Pathological complete response (pCR) of axillary lymph nodes (ALNs) is frequently achieved in patients with clinically node-positive breast cancer after neoadjuvant chemotherapy (NAC), and ALN status is an important prognostic factor for breast cancer patients. This study aims to develop a new predictive clinical model to assess the ALN pCR rate after NAC.Methods:This was a retrospective series of 467 patients who had biopsy-proven positive ALNs at diagnosis and underwent ALN dissection from 2007 to 2014 at the National Cancer Center/Cancer Hospital of the Chinese Academy of Medical Sciences. We analyzed the clinicopathologic features of the patients and developed a nomogram to predict the probability of ALN pCR. A multivariable logistic regression stepwise model was used to construct a nomogram to predict ALN pCR in node-positive patients. The adjusted area under the receiver operating characteristic curve (AUC) was calculated to quantify the ability to rank patients by risk. Internal validation was performed using the 50/50 hold-out validation method. The nomogram was externally validated with prospective cohorts of 167 patients from 2016 to 2018 at the Cancer Hospital of the Chinese Academy of Medical Sciences and 114 patients from 2018 to 2020 at Beijing Tiantan Hospital.Results:In this retrospective study, 115 (24.6%) patients achieved ALN pCR after NAC. Multivariate analysis showed that clinical tumor stage (Odds ratio [OR]: 0.321, 95% confidence interval [CI]: 0.121-0.856; P = 0.023); primary tumor response (OR: 0.189; 95% CI: 0.123-0.292; P < 0.001), and estrogen receptor status (OR: 0.530, 95% CI: 0.304-0.925; P = 0.025) were independent predictors of ALN pCR. The nomogram was constructed based on the result of multivariate analysis. In the internal validation of performance of nomogram, the AUCs for the training and test sets were 0.719 and 0.753, respectively. The nomogram was validated in external cohorts with AUCs of 0.720, which demonstrated good discriminatory power in these data sets.Conclusion:We developed a nomogram to predict the likelihood of axillary pCR in node-positive breast cancer patients after NAC. The predictive model performed well in multicenter prospective external validation. This practical tool could provide information to surgeons regarding whether to perform additional ALN dissection after NAC.Trial registration:ChiCTR.org.cn, ChiCTR1800014968.

简介：AbstractBackground:Previous studies have demonstrated different predominant sites of distant metastasis between patients with and without neoadjuvant chemoradiotherapy (NCRT). This study aimed to explore whether NCRT could influence the metastasis pattern of rectal cancer through a propensity score-matched analysis.Methods:In total, 1296 patients with NCRT or post-operative chemoradiotherapy (PCRT) were enrolled in this study between January 2008 and December 2015. Propensity score matching was used to correct for differences in baseline characteristics between the two groups. After propensity score matching, the metastasis pattern, including metastasis sites and timing, was compared and analyzed.Results:After propensity score matching, there were 408 patients in the PCRT group and 245 patients in the NCRT group. NCRT significantly reduced local recurrence (4.1% vs. 10.3%, P = 0.004), but not distant metastases (28.2% vs. 27.9%, P= 0.924) compared with PCRT. In both the NCRT and PCRT groups, the most common metastasis site was the lung, followed by the liver. The NCRT group developed local recurrence and distant metastases later than the PCRT group (median time: 29.2 [18.8, 52.0] months vs. 18.7 [13.3, 30.0] months, Z=-2.342, P= 0.019; and 21.2 [12.2, 33.8] vs. 16.4 [9.3, 27.9] months, Z=-1.765, P = 0.035, respectively). The distant metastases occurred mainly in the 2nd year after surgery in both the PCRT group (39/114, 34.2%) and NCRT group (21/69, 30.4%). However, 20.3% (14/69) of the distant metastases appeared in the 3rd year in the NCRT group, while this number was only 13.2% (15/114) in the PCRT group.Conclusions:The predominant site of distant metastases was the lung, followed by the liver, for both the NCRT group and PCRT group. NCRT did not influence the predominant site of distant metastases, but the NCRT group developed local recurrence and distant metastases later than the PCRT group. The follow-up strategy for patients with NCRT should be adjusted and a longer intensive follow-up is needed.

简介：AbstractBackground:After neoadjuvant chemotherapy (NAC), non-pathological complete response of breast cancer patients can benefit from tailored adjuvant chemotherapy. However, it is difficult to select patients with poorer prognosis for additional adjuvant chemotherapy to maximize the benefits. Our study aimed to explore whether the subtypes of tumor-infiltrating lymphocytes (TILs) in residual tumors (RT) is related to the prognosis of triple-negative breast cancer (TNBC) after NAC.Methods:Data from patients with primary TNBC consecutively diagnosed at the Breast Disease Center of Peking University First Hospital from 2008 to 2014 were retrieved, and the cases with RT in the breast after NAC were enrolled. TILs subtypes in RT were observed by double-staining immunohistochemistry, and counted with the median TILs value per square millimeter as the cut-off to define high versus low TILs density in each subtype. The relationships between the TIL density of each subgroup and the clinicopathological characteristics of the RT after NAC patients were analyzed by Fisher exact test. Disease-free survival (DFS) and overall survival (OS) were analyzed by the Kaplan-Meier method and log-rank statistics.Results:A total of 37 eligible patients were included in this study, and the median follow-up period was 50 months (range 17–106 months). There was no significant correlation between the infiltrate density of CD4+, CD8+, CD20+, and CD68+ lymphocytes and clinic-pathological characteristics. Significantly better prognosis was observed in patients with high CD4+-TILs (DFS: P = 0.005, OS: P = 0.021) and high CD8+-TILs (DFS: P = 0.018) and low CD20+-TILs (OS: P = 0.042). Further analysis showed that patients with CD4+/CD20+ ratio greater than 1 (DFS: P = 0.001, OS: P = 0.002) or CD8+/CD20+ ratio greater than 1 (DFS: P = 0.009, OS: P = 0.022) had a better prognosis.Conclusions:Subtypes of TILs in RT is a potential predictive biomarker of survival in TNBC patients after NAC.

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简介：MDR-TB系指同时耐异烟肼(INH)和利福平(RFP),或还耐其他抗结核药的结核病.解决MDR-TB的化疗问题有两条路:一是研究开发新抗结核药;二是用好现有常用抗结核药,组成更为有效的治疗MDR-TB的标准化疗方案.本文仅就后者进行探讨,并提出标准化疗方案和化疗实施的规范化要求.

简介：化疗是恶性肿瘤综合治疗的重要手段之一。静脉注射化疗药物是主要的给药途径，但化疗药物对血管组织损伤较大。在化疗过程中保护好静脉和局部组织，是确保化疗顺利进行的重要因素。因此我们应高度重视静脉化疗患者的血管保护。

简介：摘要：癌症治疗一直是医学领域的焦点之一。患者在面对癌症时常常面临重要的选择，其中之一是是否进行化疗。癌症化疗是一种广泛应用的治疗方法，通过使用药物抑制癌细胞的生长和分裂。然而，对于患者来说，化疗是否是最佳选择仍然是一个复杂而深思熟虑的问题。化疗能够直接攻击癌细胞，从而缓解症状、减小肿瘤负担。然而，化疗同时也伴随着一系列不适应和副作用，不进行化疗可能减轻患者身体的负担，改善生活质量。然而，这也可能意味着失去直接针对癌细胞的攻击手段，从而导致癌症的进一步发展。究竟进行化疗还是不进行化疗，哪个选择能够延长患者的生存期？一文帮你解决这个问题。

简介：摘要目的了解化疗护士化疗防护现状，探讨防护对策。方法采用自行设计问卷调查对本院60名临床一线接触化疗药的肿瘤科和非肿瘤科护士进行问卷调查。结果存在化疗防护设备不足，化疗防护知识缺乏，化疗防护意识薄弱，化疗防护措施未得到有效落实。两组相比，肿瘤专科组在化疗防护知识的掌握和防护措施的落实优于非肿瘤专科组(P<0.05），有统计学意义。结论健全化疗防护管理制度，配备完善防护设施，进行系统的防护知识培训，增强防护意识，有效落实防护措施，避免环境污染，减少化疗药对医护人员的职业危害。

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