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Nivolumab is a human monoclonal IgG4 antibody that inhibits programmed cell death protein 1 (PD-1) expressed on activated T cells. We investigated the safety and activity of nivolumab in patients with treatment-refractory oesophageal cancer. We did an open-label, single-arm, multicentre phase 2 study. Eligible patients had advanced squamous-cell carcinoma, adenosquamous-cell carcinoma, or adenocarcinoma of the oesophagus refractory or intolerant to fluoropyrimidine-based, platinum-based, and taxane-based chemotherapy. Patients were treated with 3 mg/kg nivolumab given intravenously once every 2 weeks in 6-week cycles. The primary endpoint was centrally assessed objective response (the proportion of patients whose best response was complete or partial response), according to the Response Evaluation Criteria In Solid Tumors, version 1.1. Adverse events and treatment-related adverse events (defined as events for which a causal relation to nivolumab could not be ruled out) were monitored throughout the study. The safety analysis was done in patients who received at least one dose of nivolumab, and drug activity was assessed in patients who received at least one dose of nivolumab and had at least one central assessment of tumour response. This study is registered with clinicaltrials.jp, number ONO-4538-07/JapicCTI-No.142422. Follow-up of patients is ongoing. Between Feb 25 and Nov 14, 2014, 65 patients were enrolled, all with squamous-cell carcinoma. 64 patients were assessable for the primary endpoint as one patient was excluded due to having multiple primary cancers; all patients were assessable for safety. Median follow-up was 10·8 months (IQR 4·9–14·3). 11 (17%, 95% CI 10–28) of 64 patients had a centrally assessed objective response. Of the 65 patients assessed for adverse events, the most common grade 3 or 4 events were grade 4 dyspnoea and hyponatraemia (one [2%) patient each), grade 3 lung infection (five [8%] patients), grade 3 decreased appetite (two [3%] patients), grade 3 increased blood creatinine phosphokinase (two [3%] patients), and grade 3 dehydration (two [3%] patients). Serious adverse events that occurred during the study were lung infection (four [6%] patients), dehydration (two [3%]), interstitial lung disease (two [3%]), and hyponatraemia, dyspnoea, fatigue, abnormal hepatic function, diarrhoea, bile duct stenosis, gastroenteritis, pneumonia, oedema, and back pain (one [2%] patient each). There were no treatment-related deaths. Nivolumab showed promising activity with a manageable safety profile. This drug could offer a potential new treatment approach for patients with treatment-refractory advanced squamous-cell carcinoma. Ono Pharmaceutical, Bristol-Myers Squibb.

Pancreatic cancer is associated with both family and hereditary cancer syndromes. Multigene panel testing for pancreatic cancer detected the germline variants BRCA1/2, PALB2, ATM, TP53, MLH1, STK11/LKB1, APC, CDKN2A, and SPINK1/PRSS1 as high-risk genes. A latest genome-wide association study revealed the common, but low-risk germline variants in pancreatic cancer patients. Active pancreatic surveillance using magnetic resonance imaging and endoscopic ultrasound is recommended for high-risk individuals who have a family history of pancreatic cancer or harbor these germline pathogenic variants to improve the detection rate and prognosis of pancreatic cancer. Since poly-ADP-ribose polymerase (PARP) inhibitor has been shown to be effective in improving the prognosis of BRCA-positive pancreatic cancer as well as hereditary breast and ovarian cancer syndrome, PARP inhibitor therapy is currently being applied as precision medicine to pancreatic cancer patients harboring the BRCA1/2 germline variant. This review highlights the importance of surveillance for germline pathogenic variants in pancreatic cancer and is expected to lead to improvements in the diagnosis and prevention of pancreatic cancer as well as facilitate the development of effective therapeutic strategies and precision medicine.

Previously untreated patients with advanced esophageal cancer were randomly assigned to receive chemotherapy alone, chemotherapy plus nivolumab, or nivolumab plus ipilimumab. Among patients with tumor-cell PD-L1 expression of 1% or greater, the two nivolumab regimens resulted in longer overall survival than chemotherapy. The side-effect profile was consistent with past reports on these agents.

AGSurg emerged from the belief that our society’s publication of an internationally respected official English-language journal would enhance our society’s standing in the global medical community and provide a much larger audience for the scientific insights that we desire to share, while also inspiring younger generations of gastroenterological surgeons to engage in scientific pursuits with greater confidence, pride, and sense of purpose. [...]we will focus all our energy on the orthodox approach: publishing high-caliber original research grounded in solid evidence. [...]we have increased the frequency of general meetings of the editorial staff, started holding sectional meetings led by the Chief of Associate Editors, strengthened the rigor of our peer review process, strived to enhance the currency of information provided in review articles, and expanded our networking with scientists both inside and outside Japan. [...]AGSurg has taken a purposely limited approach to achieve growth over a short span, calling for manuscripts from Japan’s top institutions and actively soliciting submissions from institutions connected with JSGS members.

Chemotherapy for patients with advanced oesophageal squamous cell carcinoma offers poor long-term survival prospects. We report the final analysis from our study of the immune checkpoint PD-1 inhibitor nivolumab versus chemotherapy in patients with previously treated advanced oesophageal squamous cell carcinoma. We did a multicentre, randomised, open-label, phase 3 trial (ATTRACTION-3) at 90 hospitals and cancer centres in Denmark, Germany, Italy, Japan, South Korea, Taiwan, the UK, and the USA. We enrolled patients aged 20 years and older with unresectable advanced or recurrent oesophageal squamous cell carcinoma (regardless of PD-L1 expression), at least one measurable or non-measurable lesion per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1, a baseline Eastern Cooperative Oncology Group performance status of 0–1, and who were refractory or intolerant to one previous fluoropyrimidine-based and platinum-based chemotherapy and had a life expectancy of at least 3 months. Patients were randomly assigned (1:1) to either nivolumab (240 mg for 30 min every 2 weeks) or investigator's choice of chemotherapy (paclitaxel 100 mg/m2 for at least 60 min once per week for 6 weeks then 1 week off; or docetaxel 75 mg/m2 for at least 60 min every 3 weeks), all given intravenously. Treatment continued until disease progression assessed by the investigator per RECIST version 1.1 or unacceptable toxicity. Randomisation was done using an interactive web response system with a block size of four and stratified according to geographical region (Japan vs rest of the world), number of organs with metastases, and PD-L1 expression. Patients and investigators were not masked to treatment allocation. The primary endpoint was overall survival, defined as the time from randomisation until death from any cause, in the intention-to-treat population that included all randomly assigned patients. Safety was assessed in all patients who received at least one dose of the assigned treatment. This trial is registered with ClinicalTrials.gov, number NCT02569242, and follow-up for long-term outcomes is ongoing. Between Jan 7, 2016, and May 25, 2017, we assigned 419 patients to treatment: 210 to nivolumab and 209 to chemotherapy. At the time of data cutoff on Nov 12, 2018, median follow-up for overall survival was 10·5 months (IQR 4·5–19·0) in the nivolumab group and 8·0 months (4·6–15·2) in the chemotherapy group. At a minimum follow-up time (ie, time from random assignment of the last patient to data cutoff) of 17·6 months, overall survival was significantly improved in the nivolumab group compared with the chemotherapy group (median 10·9 months, 95% CI 9·2–13·3 vs 8·4 months, 7·2–9·9; hazard ratio for death 0·77, 95% CI 0·62–0·96; p=0·019). 38 (18%) of 209 patients in the nivolumab group had grade 3 or 4 treatment-related adverse events compared with 131 (63%) of 208 patients in the chemotherapy group. The most frequent grade 3 or 4 treatment-related adverse events were anaemia (four [2%]) in the nivolumab group and decreased neutrophil count (59 [28%]) in the chemotherapy group. Five deaths were deemed treatment-related: two in the nivolumab group (one each of interstitial lung disease and pneumonitis) and three in the chemotherapy group (one each of pneumonia, spinal cord abscess, and interstitial lung disease). Nivolumab was associated with a significant improvement in overall survivaland a favourable safety profile compared with chemotherapy in previously treated patients with advanced oesophageal squamous cell carcinoma, and might represent a new standard second-line treatment option for these patients. ONO Pharmaceutical Company and Bristol-Myers Squibb.

The sentinel node (SN) concept has revolutionized the surgical staging of both melanoma and breast cancer over the past two decades. The application of this concept can yield benefits for patients by preventing various complications related to unnecessary prophylactic regional lymph node dissection in patients with cancer-negative SNs. Clinical application of SN mapping in patients with early gastric cancer has been a controversial issue for years. However, a recent meta-analysis and a prospective multicenter trial of SN mapping for early gastric cancer have shown acceptable SN detection rates and accuracy of determination of lymph node status. For early stage gastric cancer such as cT1N0M0, for which a better prognosis can be achieved through conventional surgical approaches, the establishment of individualized, minimally invasive treatments that may retain the patients’ quality of life should be the next surgical challenge. Although there are many unresolved technical issues, laparoscopic SN biopsy with laparoscopic minimized gastrectomy or endoscopic mucosal resection/endoscopic submucosal dissection has the potential to achieve this goal.