Objective: To evaluate the efficacy of adjuvant chemotherapy after radical surgery for non-small cell lung cancer (NSCLC). Methods: Seventy patients with NSCLC (stage I–III) undergone radical surgery were randomized ...Objective: To evaluate the efficacy of adjuvant chemotherapy after radical surgery for non-small cell lung cancer (NSCLC). Methods: Seventy patients with NSCLC (stage I–III) undergone radical surgery were randomized into two groups: 35 patients received adjuvant chemotherapy with cyclophosphamide (CTX) 300 mg/m2, vincristine (VCR) 1.4% mg/m2, adriamycin (ADM) 50 mg/m2, lomustine (CCNU) 50 mg/m2 dl, cisplatin (DDP) 20 mg/m2, d1–5, for 4 cycles, and followed by oral Ftorafur (FT-207) 600–900 mg/d for 1 year (adjuvant chemotherapy group). The other 35 patients received surgical treatment only (surgery group). Results: The overall 5-year survival rate was 48.6% in the adjuvant chemotherapy group, and 31.4% in the surgery group, respectively. The difference between the two groups was not statistically significant (P>0.05). The 5-year survival rate of patients in stage III was 44.0% and 20.8% received surgery with and without adjuvant chemotherapy, respectively. The difference between the two groups was statistically significant (P<0.025). The 5-year survival rate of patients in stage I–II in the two groups was 60.0% and 54.5%, respectively (P>0.75). Conclusion: Postoperative adjuvant chemotherapy in NSCLC can improve survival, for those patients in stage III, it suggests significantly 5-year survival rate in the adjuvant chemotherapy group was higher than that in the surgery alone group.展开更多
BACKGROUND Synchronous multiple lung cancers are rare and refer to the simultaneous presence of two or more primary lung tumors,which present significant challenges in terms of diagnosis and treatment.CASE SUMMARY We ...BACKGROUND Synchronous multiple lung cancers are rare and refer to the simultaneous presence of two or more primary lung tumors,which present significant challenges in terms of diagnosis and treatment.CASE SUMMARY We report a case of multiple synchronous lung cancers with hilar lymph node metastasis of small cell carcinoma of unknown origin in a 73-year-old man.Transbronchial lung biopsy revealed squamous cell carcinoma.Although enlargement of lymph node 12u was detected,no distant metastases were observed.The patient was preoperatively diagnosed with T1cN0M0 and underwent thoracoscopic right upper lobectomy with nodal dissection(ND2a).Based on histopathological findings,the primary lesion was squamous cell carcinoma.A microinvasive adenocarcinoma was also observed on the cranial side of the primary lesion.Tumors were detected in two resected lymph nodes(#12u and#11s).Both tumors were pathologically diagnosed as small cell carcinomas.The primary lesion of the small cell carcinoma could not be identified even by whole-body imaging;however,chemotherapy was initiated for hilar lymph node metastasis of the small cell carcinoma of unknown origin.CONCLUSION Multiple synchronous lung cancers can be accompanied by hilar lymph node metastasis of small cell carcinomas of unknown origin.展开更多
Objective: To evaluate the efficacy and safety of nedaplatin/gemcitabine (NG) and carboplatin/gemcitabine (CG) in the management of untreated advanced non-small cell lung cancer (NSCLC). Methods: Sixty-two pa...Objective: To evaluate the efficacy and safety of nedaplatin/gemcitabine (NG) and carboplatin/gemcitabine (CG) in the management of untreated advanced non-small cell lung cancer (NSCLC). Methods: Sixty-two patients with previously untreated advanced NSCLC were recruited between June 2006 and November 2007. Subjects were randomly assigned to the NG arm (n=30) and the CG arm (n=32). Only patients (24 and 25 in the NG and CG arms, respectively) who completed 〉2 chemotherapy cycles were included in the data analysis. The primary outcome measure was the objective response rate (ORR). The secondary outcome measures included progression-free survival (PFS), overall survival (OS) and adverse events. Results: There were no statistically significant differences in the efficacy measures (ORR, P=0.305; median PFS, P=0.298, median OS, P=0.961) or in the major adverse events (grade 3/4 neutropenia, P=0.666; grade 3/4 anemia, P=0.263; grade 3/4 thrombocytopenia, P=0.222) between the two treatment arms. However, there was a trend towards higher ORR (37.5% vs. 24.0%), longer PFS (6.0 vs. 5.0 months), and less adverse events in the NG arm. Conclusion: NG regimen seems to be superior over CG regimen for advance NSCLS, but further investigation is needed to validate this superiority.展开更多
Objective: To compare the efficacy and adverse effects of paclitaxel-etoposide-carboplatin/cisplatin(TEP/TCE) regimen with those of etoposide-carboplatin/cisplatin(EP/CE) regimen as first-line treatment for combined s...Objective: To compare the efficacy and adverse effects of paclitaxel-etoposide-carboplatin/cisplatin(TEP/TCE) regimen with those of etoposide-carboplatin/cisplatin(EP/CE) regimen as first-line treatment for combined small-cell lung cancer(CSCLC).Methods: A retrospective study was conducted on 62 CSCLC patients who were treated at Tianjin Medical University Cancer Institute and Hospital from July 2000 to April 2013 and administered with TEP/TCE regimen(n=19) or EP/CE regimen(n=43) as first-line CSCLC treatment. All patients received more than two cycles of chemotherapy, and the response was evaluated every two cycles. The primary endpoint was overall survival(OS), and the secondary endpoints were progression-free survival(PFS), objective response rate(ORR), disease control rate(DCR), and adverse effects. Results: ORR between the TEP/TCE and EP/CE groups showed a statistical difference(90% vs. 53%, P=0.033). Both groups failed to reach a statistical difference in DCR(100% vs. 86%, P=0.212). The median PFS and OS of the TEP/TCE group were slightly longer than those of the EP/CE group, although both groups failed to reach a statistical difference(10.5 vs. 8.9 months, P=0.484; 24.0 vs. 17.5 months, P=0.457). However, stratified analysis indicated that the PFS of patients with stages III and IV CSCLC showed marginally significant difference between the TEP/TCE and EP/CE groups(19.5 vs. 7.6 months; P=0.071). Both rates of grade IV bone marrow depression and termination of chemotherapy in the TEP/TCE group were significantly higher than those in the EP/CE group(26.3% vs. 7.0%, P=0.036; 31.6% vs. 14.7%, P=0.004). Conclusion: The TEP/TCE regimen may not be preferred for CSCLC, and this three-drug regimen requires further exploration and research. To date, the EP/CE regimen remains the standard treatment for CSCLC patients.展开更多
Non-small-cell lung cancer remains a leading cause of death around the world. For most cases, the only chance of cure comes from resection for localised disease, however relapse rates remain high following surgery. Da...Non-small-cell lung cancer remains a leading cause of death around the world. For most cases, the only chance of cure comes from resection for localised disease, however relapse rates remain high following surgery. Data has emerged over recent years regarding the utility of adjuvant chemotherapy for improving disease-free and overall survival of patients following curative resection. This paper reviews the clinical trials that have been conducted in this area along with the studies integrating radiation therapy in the adjuvant setting. The role of prognostic gene signatures are reviewed as well as ongoing clinical trials including those incorporating biological or targeted therapies.展开更多
Small cell lung cancer(SCLC)accounts for approximately 20%of all lung cancers.The main treatment is chemotherapy(Ch).However,the addition of radiotherapy significantly improves overall survival(OS)in patients with non...Small cell lung cancer(SCLC)accounts for approximately 20%of all lung cancers.The main treatment is chemotherapy(Ch).However,the addition of radiotherapy significantly improves overall survival(OS)in patients with non-metastatic SCLC and in those with metastatic SCLC who respond to Ch.Prophylactic cranial irradiation reduces the risk of brain metastases and improves OS in both metastatic and non-metastatic patients.The 5-year OS rate in patients with limited-stage disease(non-metastatic)is slightly higher than 30%,but less than 5%in patients with extensive-stage disease(metastatic).The present clinical guidelines were developed by Spanish radiation oncologists on behalf of the Oncologic Group for the Study of Lung Cancer/Spanish Society of Radiation Oncology to provide a current review of the diagnosis,planning,and treatment of SCLC.These guidelines emphasise treatment fields,radiation techniques,fractionation,concomitant treatment,and the optimal timing of Ch and radiotherapy.Finally,we discuss the main indications for reirradiation in local recurrence.展开更多
The treatment of small cell lung cancer(SCLC)is a challenge for all specialists involved.New treatments have been added to the therapeutic armamentarium in recent months,but efforts must continue to improve both survi...The treatment of small cell lung cancer(SCLC)is a challenge for all specialists involved.New treatments have been added to the therapeutic armamentarium in recent months,but efforts must continue to improve both survival and quality of life.Advances in surgery and radiotherapy have resulted in prolonged survival times and fewer complications,while more careful patient selection has led to increased staging accuracy.Developments in the field of systemic therapy have resulted in changes to clinical guidelines and the management of patients with advanced disease,mainly with the introduction of immunotherapy.In this article,we describe recent improvements in the management of patients with SCLC,review current treatments,and discuss future lines of research.展开更多
Lung cancer is responsible for the most cancer deaths worldwide with an incidence that is still rising. One third of patients have unresectable stage ⅢA or stage ⅢB disease. The standard of care for locally advanced...Lung cancer is responsible for the most cancer deaths worldwide with an incidence that is still rising. One third of patients have unresectable stage ⅢA or stage ⅢB disease. The standard of care for locally advanceddisease in patients with good performance status consists of combined modality therapy in particular concurrent chemoradiotherapy. But despite a lot of efforts done in the past, local control and survival of patients with unresectable stage Ⅲ non-small-cell lung cancer(NSCLC) remains poor. Improving outcomes for patients with unresectable stage Ⅲ NSCLC has therefore been an area of ongoing research. Research has focused on improving systemic therapy, improving radiation therapy or adding a maintenance therapy to consolidate the initial therapy. Also implementation of newer targeted therapies and immunotherapy has been investigated as well as the option of prophylactic cranial irradiation. This article reviews the latest literature on improving local control and preventing distant metastases. It seems that we have reached a plateau with conventional chemotherapy. Radiotherapy dose escalation did not improve outcome although increasing radiation dose-intensity with new radiotherapy techniques and the use of newer agents, e.g., immunotherapy might be promising. In the future well-designed clinical trials are necessary to prove those promising results.展开更多
Objective:NCT01780675,a multicenter randomized phase III trial of prophylactic cranial irradiation(PCI)versus PCI with hippocampal sparing in small cell lung cancer(SCLC)investigated neurocognitive decline and safety....Objective:NCT01780675,a multicenter randomized phase III trial of prophylactic cranial irradiation(PCI)versus PCI with hippocampal sparing in small cell lung cancer(SCLC)investigated neurocognitive decline and safety.As part of quality assurance,we evaluated if hippocampal avoidance(HA)-PCI was performed according to the NCT01780675 trial protocol instructions,and performed a safety analysis to study the incidence and location of brain metastases for patients treated with HA-PCI.Methods:This retrospective analysis evaluated the quality of the irradiation given in the randomized controlled trial(RCT)comparing SCLC patients receiving PCI with or without hippocampal avoidance,using intensity mod-ulated radiotherapy(IMRT)or volumetric modulated arc therapy(VMAT).The dose distribution for each patient receiving HA-PCI was retrieved and analyzed to evaluate if the treatment dose constraints were met.A ques-tionnaire was sent out to all participating sites,and data on radiotherapy technique,pre-treatment dummy runs,phantom measurements and treatment electronic portal imaging device(EPID)dosimetry were collected and analyzed.As part of the safety analysis,the follow-up magnetic resonance imaging(MRI)or computerized to-mography(CT)scans on which cranial disease progression was first diagnosed were collected and matched to the radiotherapy planning dose distribution.The matched scans were reviewed to analyze the location of the brain metastases in relation to the prescribed dose.Results:A total of 168 patients were randomized in the NCT01780675 trial in 10 centers in the Netherlands and Belgium from April 2013 until March 2018.Eighty two patients receiving HA-PCI without evidence of brain metastases were analyzed.All patients were treated with 25 Gy in 10 fractions.Dummy runs and phantom measurements were performed in all institutions prior to enrolling patients into the study.The radiotherapy(RT)plans showed a median mean bilateral hippocampal dose of 8.0 Gy,range 5.4-11.4(constraint≤8.5 Gy).In six patients(7.3%)there was a protocol violation of the mean dose in one or both hippocampi.In four of these six patients(4.9%)the mean dose to both hippocampi exceeded the constraint,in 1 patient(1.2%)only the left and in 1 patient(1.2%)only the right hippocampal mean dose was violated(average median dose left and right 8.9 Gy).All patients met the trial dose constraint of V 115%PTV≤1%;however the D max PTV constraint of≤28.75 Gy was violated in 22.0%of the patients.The safety analysis showed that 14 patients(17.1%)developed cranial progression.No solitary brain metastases in the underdosed region were found.Two out of 11 patients with multiple brain metastasis developed metastasis in the underdosed region(s).Conclusions:The radiotherapy quality within the HA-PCI trial is performed according to the protocol guidelines.The dose constraints to the hippocampi are met in the vast majority of cases.In all patients,the volume of the brain for which a higher dose was accepted,is according to the trial.However,within this volume there are small areas with higher doses than advised.展开更多
Background Brain metastasis is one of the most important causes of treatment failure in patients with small cell lung cancer (SCLC). This study was conducted to evaluate the effects of prophylactic cranial irradiati...Background Brain metastasis is one of the most important causes of treatment failure in patients with small cell lung cancer (SCLC). This study was conducted to evaluate the effects of prophylactic cranial irradiation (PCI) on survival and brain metastases for patients with limited stage small cell lung cancer in complete remission. Methods Fifty one patients with limited stage SCLC in complete remission after chemoradiotherapy were randomly divided into PCI group (n = 26) and control group (n = 25 ). Patients in the PCI group received PCI at a dose of 25.2 to 30. 6 Gy in 1.8 to 2.0 Gy per fraction. The Kaplan-Meier method and Log rank test were used to analyse and compare survival rates, and X^2 test was used to compare the incidences of cranial metastases in two groups. Results There was no significant difference in clinical characteristics of patients such as age, sex, effect of treatment before PCI between the two groups. The incidence of brain metastases was 3.8% in the PCI group in contrast to 32. 0% in the control group (X^2 =5.15, P =0. 02). The 1, 3, 5-year survival rates were 84. 6%, 42. 3%, 34. 6% respectively in the PCI group and 72.0%, 32. 0%, 24. 0% respectively in the control group, with no difference between the two groups (X^2 = 2. 25, P = 0. 13 ). No serious sequelae were observed in patients receiving PCI. Conclusion For patients with limited stage SCLC responding completely to chemotherapy plus radiotherapy, PCI can decrease the incidence of brain metastases and improve survival rate.展开更多
BACKGROUND: Traditional Chinese medicine (TCM) is considered an important complementary therapy with beneficial effects for cancer patients. Elderly patients with non-small-cell lung cancer (NSCLC) are a complex ...BACKGROUND: Traditional Chinese medicine (TCM) is considered an important complementary therapy with beneficial effects for cancer patients. Elderly patients with non-small-cell lung cancer (NSCLC) are a complex patient group with increasing co-morbidity and shrinking physiological reserve, and may derive substantial benefit from the supportive aspects of TCM Researchers from Shanghai Longhua Hospital found that qi and yin deficiency is a common syndrome in patients with stage III or IV lung cancer. This project was designed to study the combination of single-agent chemotherapy with TCM methods of benefiting qi and yin in elderly patients with advanced NSCLC. METHODS AND DESIGN: This is a double-blind controlled, multi-center, and prospective study with randomly selected participants from elderly NSCLC patients in China. Seventy-six patients who meet the inclusion criteria will be allocated into two groups, which will receive treatments of 3-week single-agent chemotherapy with TCM or placebo for four cycles Progression-free survival (PFS) is the primary end point, and the secondary end points are overall survival, objective response rate, time-to-progression, and quality of life (EORTC QLQ-LC43, and TCM syndrome score) Meanwhile, other end points such as toxicity, side effects and safety of the treatments will be assessed. DISCUSSION: Results from this study may provide evidence on the effectiveness, and parameters for the usage of single-agent chemotherapy combined with or without TCM on PFS of elderly patients with NSCLC.展开更多
BACKGROUND Few studies have addressed the efficacy of pembrolizumab in pulmonary sarcomatoid carcinoma(PSC),a rare,previously rapidly fatal subtype of nonsmall-cell lung cancer.CASE SUMMARY We report the case of a 69-...BACKGROUND Few studies have addressed the efficacy of pembrolizumab in pulmonary sarcomatoid carcinoma(PSC),a rare,previously rapidly fatal subtype of nonsmall-cell lung cancer.CASE SUMMARY We report the case of a 69-year-old man presented with respiratory distress caused by a large left upper lung lobe mass diagnosed as PSC with programmed death-ligand 1 expressed on more than 50 percent of tumor cells.The patient was started on pembrolizumab and,after 5 cycles,there was a more than 80 percent decrease in the size of the tumor mass.Further decrease was seen at the end of 10 cycles.The patient has been tolerating pembrolizumab well,with no limiting side-effects.Fourteen months after first coming into the hospital,he remains asymptomatic.CONCLUSION Pembrolizumab appears as a viable emerging treatment for PSC.展开更多
The Rat sarcoma virus (RAS) family of proteins, which includes the Kristen Rat sarcoma virus (KRAS), is linked to nearly one-fourth of all human cancers. KRAS mutations, in particular, are associated with Non-Small Ce...The Rat sarcoma virus (RAS) family of proteins, which includes the Kristen Rat sarcoma virus (KRAS), is linked to nearly one-fourth of all human cancers. KRAS mutations, in particular, are associated with Non-Small Cell Lung Carcinoma (NSCLC), colorectal cancer, adenocarcinomas, ovarian carcinoma, and endometrial tumors. KRAS activates 80 different signaling pathways, including Mitogen-activated protein kinases (MAPK) and Phosphoinositide 3-kinase (PI3K), and up-regulates transcription factors such as ETS like Protein (ELK), Jun Proto-Oncogene (JUN), and Myelocytomatosis (MYC), which are involved in cell differentiation, proliferation, transformation, and survival. KRAS mutations are also known to cause autocrine function, which further exacerbates the situation. In NSCLC, KRAS mutations have a strong positive correlation with the disease, particularly in patients with a smoking history. In pancreatic cancer, KRAS mutations are a dominant pathological basis, with most mutations being G12D, G12V, G13D, G13C, G13S, and G13R. These mutations serve as initial markers in tumorigenesis and are associated with poor prognosis and high mortality rates. In colorectal cancer, KRAS mutations contribute to 4/5 of cases, with cellular mechanisms involving the MAPK pathway, which resists anti-epidermal growth factor antibodies. In Low-grade Serous Ovarian Cancer (LGSOC), KRAS mutations are associated with altered signaling in the MAPK pathway and drug resistance. However, treatments such as Selumetinib, a down regulator of RAS/Rapidly Accelerated Fibrosarcoma (RAF)/Mitogen-activated protein kinase (MEK) pathways, and a combination of trametinib and buparlisib have shown promise in managing LGSOC when diagnosed early through KRAS mutation markers. Although KRAS mutations are commonly associated with many types of cancer, their use in clinical practice is limited due to the lack of accurate methods to identify them. It is needed to further isolate the KRAS mutation products and correlate the cancer-causing genes to make it a promising approach for cancer chemotherapy.展开更多
文摘Objective: To evaluate the efficacy of adjuvant chemotherapy after radical surgery for non-small cell lung cancer (NSCLC). Methods: Seventy patients with NSCLC (stage I–III) undergone radical surgery were randomized into two groups: 35 patients received adjuvant chemotherapy with cyclophosphamide (CTX) 300 mg/m2, vincristine (VCR) 1.4% mg/m2, adriamycin (ADM) 50 mg/m2, lomustine (CCNU) 50 mg/m2 dl, cisplatin (DDP) 20 mg/m2, d1–5, for 4 cycles, and followed by oral Ftorafur (FT-207) 600–900 mg/d for 1 year (adjuvant chemotherapy group). The other 35 patients received surgical treatment only (surgery group). Results: The overall 5-year survival rate was 48.6% in the adjuvant chemotherapy group, and 31.4% in the surgery group, respectively. The difference between the two groups was not statistically significant (P>0.05). The 5-year survival rate of patients in stage III was 44.0% and 20.8% received surgery with and without adjuvant chemotherapy, respectively. The difference between the two groups was statistically significant (P<0.025). The 5-year survival rate of patients in stage I–II in the two groups was 60.0% and 54.5%, respectively (P>0.75). Conclusion: Postoperative adjuvant chemotherapy in NSCLC can improve survival, for those patients in stage III, it suggests significantly 5-year survival rate in the adjuvant chemotherapy group was higher than that in the surgery alone group.
文摘BACKGROUND Synchronous multiple lung cancers are rare and refer to the simultaneous presence of two or more primary lung tumors,which present significant challenges in terms of diagnosis and treatment.CASE SUMMARY We report a case of multiple synchronous lung cancers with hilar lymph node metastasis of small cell carcinoma of unknown origin in a 73-year-old man.Transbronchial lung biopsy revealed squamous cell carcinoma.Although enlargement of lymph node 12u was detected,no distant metastases were observed.The patient was preoperatively diagnosed with T1cN0M0 and underwent thoracoscopic right upper lobectomy with nodal dissection(ND2a).Based on histopathological findings,the primary lesion was squamous cell carcinoma.A microinvasive adenocarcinoma was also observed on the cranial side of the primary lesion.Tumors were detected in two resected lymph nodes(#12u and#11s).Both tumors were pathologically diagnosed as small cell carcinomas.The primary lesion of the small cell carcinoma could not be identified even by whole-body imaging;however,chemotherapy was initiated for hilar lymph node metastasis of the small cell carcinoma of unknown origin.CONCLUSION Multiple synchronous lung cancers can be accompanied by hilar lymph node metastasis of small cell carcinomas of unknown origin.
文摘Objective: To evaluate the efficacy and safety of nedaplatin/gemcitabine (NG) and carboplatin/gemcitabine (CG) in the management of untreated advanced non-small cell lung cancer (NSCLC). Methods: Sixty-two patients with previously untreated advanced NSCLC were recruited between June 2006 and November 2007. Subjects were randomly assigned to the NG arm (n=30) and the CG arm (n=32). Only patients (24 and 25 in the NG and CG arms, respectively) who completed 〉2 chemotherapy cycles were included in the data analysis. The primary outcome measure was the objective response rate (ORR). The secondary outcome measures included progression-free survival (PFS), overall survival (OS) and adverse events. Results: There were no statistically significant differences in the efficacy measures (ORR, P=0.305; median PFS, P=0.298, median OS, P=0.961) or in the major adverse events (grade 3/4 neutropenia, P=0.666; grade 3/4 anemia, P=0.263; grade 3/4 thrombocytopenia, P=0.222) between the two treatment arms. However, there was a trend towards higher ORR (37.5% vs. 24.0%), longer PFS (6.0 vs. 5.0 months), and less adverse events in the NG arm. Conclusion: NG regimen seems to be superior over CG regimen for advance NSCLS, but further investigation is needed to validate this superiority.
基金supported by grants from the Tianjin Municipal Science and Technology Project (Grant No. 11JCYBJC11300)National Natural Science Foundation of China (Grant No. 81372517)National Science and Technology Major Project (Grant No. 09303001)
文摘Objective: To compare the efficacy and adverse effects of paclitaxel-etoposide-carboplatin/cisplatin(TEP/TCE) regimen with those of etoposide-carboplatin/cisplatin(EP/CE) regimen as first-line treatment for combined small-cell lung cancer(CSCLC).Methods: A retrospective study was conducted on 62 CSCLC patients who were treated at Tianjin Medical University Cancer Institute and Hospital from July 2000 to April 2013 and administered with TEP/TCE regimen(n=19) or EP/CE regimen(n=43) as first-line CSCLC treatment. All patients received more than two cycles of chemotherapy, and the response was evaluated every two cycles. The primary endpoint was overall survival(OS), and the secondary endpoints were progression-free survival(PFS), objective response rate(ORR), disease control rate(DCR), and adverse effects. Results: ORR between the TEP/TCE and EP/CE groups showed a statistical difference(90% vs. 53%, P=0.033). Both groups failed to reach a statistical difference in DCR(100% vs. 86%, P=0.212). The median PFS and OS of the TEP/TCE group were slightly longer than those of the EP/CE group, although both groups failed to reach a statistical difference(10.5 vs. 8.9 months, P=0.484; 24.0 vs. 17.5 months, P=0.457). However, stratified analysis indicated that the PFS of patients with stages III and IV CSCLC showed marginally significant difference between the TEP/TCE and EP/CE groups(19.5 vs. 7.6 months; P=0.071). Both rates of grade IV bone marrow depression and termination of chemotherapy in the TEP/TCE group were significantly higher than those in the EP/CE group(26.3% vs. 7.0%, P=0.036; 31.6% vs. 14.7%, P=0.004). Conclusion: The TEP/TCE regimen may not be preferred for CSCLC, and this three-drug regimen requires further exploration and research. To date, the EP/CE regimen remains the standard treatment for CSCLC patients.
文摘Non-small-cell lung cancer remains a leading cause of death around the world. For most cases, the only chance of cure comes from resection for localised disease, however relapse rates remain high following surgery. Data has emerged over recent years regarding the utility of adjuvant chemotherapy for improving disease-free and overall survival of patients following curative resection. This paper reviews the clinical trials that have been conducted in this area along with the studies integrating radiation therapy in the adjuvant setting. The role of prognostic gene signatures are reviewed as well as ongoing clinical trials including those incorporating biological or targeted therapies.
文摘Small cell lung cancer(SCLC)accounts for approximately 20%of all lung cancers.The main treatment is chemotherapy(Ch).However,the addition of radiotherapy significantly improves overall survival(OS)in patients with non-metastatic SCLC and in those with metastatic SCLC who respond to Ch.Prophylactic cranial irradiation reduces the risk of brain metastases and improves OS in both metastatic and non-metastatic patients.The 5-year OS rate in patients with limited-stage disease(non-metastatic)is slightly higher than 30%,but less than 5%in patients with extensive-stage disease(metastatic).The present clinical guidelines were developed by Spanish radiation oncologists on behalf of the Oncologic Group for the Study of Lung Cancer/Spanish Society of Radiation Oncology to provide a current review of the diagnosis,planning,and treatment of SCLC.These guidelines emphasise treatment fields,radiation techniques,fractionation,concomitant treatment,and the optimal timing of Ch and radiotherapy.Finally,we discuss the main indications for reirradiation in local recurrence.
文摘The treatment of small cell lung cancer(SCLC)is a challenge for all specialists involved.New treatments have been added to the therapeutic armamentarium in recent months,but efforts must continue to improve both survival and quality of life.Advances in surgery and radiotherapy have resulted in prolonged survival times and fewer complications,while more careful patient selection has led to increased staging accuracy.Developments in the field of systemic therapy have resulted in changes to clinical guidelines and the management of patients with advanced disease,mainly with the introduction of immunotherapy.In this article,we describe recent improvements in the management of patients with SCLC,review current treatments,and discuss future lines of research.
文摘Lung cancer is responsible for the most cancer deaths worldwide with an incidence that is still rising. One third of patients have unresectable stage ⅢA or stage ⅢB disease. The standard of care for locally advanceddisease in patients with good performance status consists of combined modality therapy in particular concurrent chemoradiotherapy. But despite a lot of efforts done in the past, local control and survival of patients with unresectable stage Ⅲ non-small-cell lung cancer(NSCLC) remains poor. Improving outcomes for patients with unresectable stage Ⅲ NSCLC has therefore been an area of ongoing research. Research has focused on improving systemic therapy, improving radiation therapy or adding a maintenance therapy to consolidate the initial therapy. Also implementation of newer targeted therapies and immunotherapy has been investigated as well as the option of prophylactic cranial irradiation. This article reviews the latest literature on improving local control and preventing distant metastases. It seems that we have reached a plateau with conventional chemotherapy. Radiotherapy dose escalation did not improve outcome although increasing radiation dose-intensity with new radiotherapy techniques and the use of newer agents, e.g., immunotherapy might be promising. In the future well-designed clinical trials are necessary to prove those promising results.
文摘Objective:NCT01780675,a multicenter randomized phase III trial of prophylactic cranial irradiation(PCI)versus PCI with hippocampal sparing in small cell lung cancer(SCLC)investigated neurocognitive decline and safety.As part of quality assurance,we evaluated if hippocampal avoidance(HA)-PCI was performed according to the NCT01780675 trial protocol instructions,and performed a safety analysis to study the incidence and location of brain metastases for patients treated with HA-PCI.Methods:This retrospective analysis evaluated the quality of the irradiation given in the randomized controlled trial(RCT)comparing SCLC patients receiving PCI with or without hippocampal avoidance,using intensity mod-ulated radiotherapy(IMRT)or volumetric modulated arc therapy(VMAT).The dose distribution for each patient receiving HA-PCI was retrieved and analyzed to evaluate if the treatment dose constraints were met.A ques-tionnaire was sent out to all participating sites,and data on radiotherapy technique,pre-treatment dummy runs,phantom measurements and treatment electronic portal imaging device(EPID)dosimetry were collected and analyzed.As part of the safety analysis,the follow-up magnetic resonance imaging(MRI)or computerized to-mography(CT)scans on which cranial disease progression was first diagnosed were collected and matched to the radiotherapy planning dose distribution.The matched scans were reviewed to analyze the location of the brain metastases in relation to the prescribed dose.Results:A total of 168 patients were randomized in the NCT01780675 trial in 10 centers in the Netherlands and Belgium from April 2013 until March 2018.Eighty two patients receiving HA-PCI without evidence of brain metastases were analyzed.All patients were treated with 25 Gy in 10 fractions.Dummy runs and phantom measurements were performed in all institutions prior to enrolling patients into the study.The radiotherapy(RT)plans showed a median mean bilateral hippocampal dose of 8.0 Gy,range 5.4-11.4(constraint≤8.5 Gy).In six patients(7.3%)there was a protocol violation of the mean dose in one or both hippocampi.In four of these six patients(4.9%)the mean dose to both hippocampi exceeded the constraint,in 1 patient(1.2%)only the left and in 1 patient(1.2%)only the right hippocampal mean dose was violated(average median dose left and right 8.9 Gy).All patients met the trial dose constraint of V 115%PTV≤1%;however the D max PTV constraint of≤28.75 Gy was violated in 22.0%of the patients.The safety analysis showed that 14 patients(17.1%)developed cranial progression.No solitary brain metastases in the underdosed region were found.Two out of 11 patients with multiple brain metastasis developed metastasis in the underdosed region(s).Conclusions:The radiotherapy quality within the HA-PCI trial is performed according to the protocol guidelines.The dose constraints to the hippocampi are met in the vast majority of cases.In all patients,the volume of the brain for which a higher dose was accepted,is according to the trial.However,within this volume there are small areas with higher doses than advised.
文摘Background Brain metastasis is one of the most important causes of treatment failure in patients with small cell lung cancer (SCLC). This study was conducted to evaluate the effects of prophylactic cranial irradiation (PCI) on survival and brain metastases for patients with limited stage small cell lung cancer in complete remission. Methods Fifty one patients with limited stage SCLC in complete remission after chemoradiotherapy were randomly divided into PCI group (n = 26) and control group (n = 25 ). Patients in the PCI group received PCI at a dose of 25.2 to 30. 6 Gy in 1.8 to 2.0 Gy per fraction. The Kaplan-Meier method and Log rank test were used to analyse and compare survival rates, and X^2 test was used to compare the incidences of cranial metastases in two groups. Results There was no significant difference in clinical characteristics of patients such as age, sex, effect of treatment before PCI between the two groups. The incidence of brain metastases was 3.8% in the PCI group in contrast to 32. 0% in the control group (X^2 =5.15, P =0. 02). The 1, 3, 5-year survival rates were 84. 6%, 42. 3%, 34. 6% respectively in the PCI group and 72.0%, 32. 0%, 24. 0% respectively in the control group, with no difference between the two groups (X^2 = 2. 25, P = 0. 13 ). No serious sequelae were observed in patients receiving PCI. Conclusion For patients with limited stage SCLC responding completely to chemotherapy plus radiotherapy, PCI can decrease the incidence of brain metastases and improve survival rate.
基金supported by the Longhua Medicial Project (D-11)The Science and Technology Commission of Shanghai Municipality (No.12401905700)
文摘BACKGROUND: Traditional Chinese medicine (TCM) is considered an important complementary therapy with beneficial effects for cancer patients. Elderly patients with non-small-cell lung cancer (NSCLC) are a complex patient group with increasing co-morbidity and shrinking physiological reserve, and may derive substantial benefit from the supportive aspects of TCM Researchers from Shanghai Longhua Hospital found that qi and yin deficiency is a common syndrome in patients with stage III or IV lung cancer. This project was designed to study the combination of single-agent chemotherapy with TCM methods of benefiting qi and yin in elderly patients with advanced NSCLC. METHODS AND DESIGN: This is a double-blind controlled, multi-center, and prospective study with randomly selected participants from elderly NSCLC patients in China. Seventy-six patients who meet the inclusion criteria will be allocated into two groups, which will receive treatments of 3-week single-agent chemotherapy with TCM or placebo for four cycles Progression-free survival (PFS) is the primary end point, and the secondary end points are overall survival, objective response rate, time-to-progression, and quality of life (EORTC QLQ-LC43, and TCM syndrome score) Meanwhile, other end points such as toxicity, side effects and safety of the treatments will be assessed. DISCUSSION: Results from this study may provide evidence on the effectiveness, and parameters for the usage of single-agent chemotherapy combined with or without TCM on PFS of elderly patients with NSCLC.
文摘BACKGROUND Few studies have addressed the efficacy of pembrolizumab in pulmonary sarcomatoid carcinoma(PSC),a rare,previously rapidly fatal subtype of nonsmall-cell lung cancer.CASE SUMMARY We report the case of a 69-year-old man presented with respiratory distress caused by a large left upper lung lobe mass diagnosed as PSC with programmed death-ligand 1 expressed on more than 50 percent of tumor cells.The patient was started on pembrolizumab and,after 5 cycles,there was a more than 80 percent decrease in the size of the tumor mass.Further decrease was seen at the end of 10 cycles.The patient has been tolerating pembrolizumab well,with no limiting side-effects.Fourteen months after first coming into the hospital,he remains asymptomatic.CONCLUSION Pembrolizumab appears as a viable emerging treatment for PSC.
文摘The Rat sarcoma virus (RAS) family of proteins, which includes the Kristen Rat sarcoma virus (KRAS), is linked to nearly one-fourth of all human cancers. KRAS mutations, in particular, are associated with Non-Small Cell Lung Carcinoma (NSCLC), colorectal cancer, adenocarcinomas, ovarian carcinoma, and endometrial tumors. KRAS activates 80 different signaling pathways, including Mitogen-activated protein kinases (MAPK) and Phosphoinositide 3-kinase (PI3K), and up-regulates transcription factors such as ETS like Protein (ELK), Jun Proto-Oncogene (JUN), and Myelocytomatosis (MYC), which are involved in cell differentiation, proliferation, transformation, and survival. KRAS mutations are also known to cause autocrine function, which further exacerbates the situation. In NSCLC, KRAS mutations have a strong positive correlation with the disease, particularly in patients with a smoking history. In pancreatic cancer, KRAS mutations are a dominant pathological basis, with most mutations being G12D, G12V, G13D, G13C, G13S, and G13R. These mutations serve as initial markers in tumorigenesis and are associated with poor prognosis and high mortality rates. In colorectal cancer, KRAS mutations contribute to 4/5 of cases, with cellular mechanisms involving the MAPK pathway, which resists anti-epidermal growth factor antibodies. In Low-grade Serous Ovarian Cancer (LGSOC), KRAS mutations are associated with altered signaling in the MAPK pathway and drug resistance. However, treatments such as Selumetinib, a down regulator of RAS/Rapidly Accelerated Fibrosarcoma (RAF)/Mitogen-activated protein kinase (MEK) pathways, and a combination of trametinib and buparlisib have shown promise in managing LGSOC when diagnosed early through KRAS mutation markers. Although KRAS mutations are commonly associated with many types of cancer, their use in clinical practice is limited due to the lack of accurate methods to identify them. It is needed to further isolate the KRAS mutation products and correlate the cancer-causing genes to make it a promising approach for cancer chemotherapy.