Phase II trial of nab-paclitaxel plus ramucirumab in combination with nivolumab for unresectable advanced or recurrent gastric cancer after progression on first-line treatment including fluoropyrimidine, platinum, and anti-PD-1/PD-L1 antibody (PADDLE).

Background: Patients with advanced gastric cancer (AGC) have poor survival after first-line treatment containing an anti-programmed death-1/ligand 1 (PD-1/PD-L1) antibody. Accumulating evidence suggests rationales for continuing immunotherapy beyond progression, synergistic effects between immune checkpoint inhibitors and angiogenesis inhibitors, and a preferable combination of steroid-free chemotherapy with immunotherapy. These rationales imply that nanoparticle albumin-bound (nab)-paclitaxel plus ramucirumab in combination with nivolumab (anti-PD-1 antibody) may enhance anti-tumor effects as second-line treatment.

Concentrations of Irinotecan and SN-38 in the Ascites and the Fluid Product of Cell-Free and Concentrated Ascites Reinfusion Therapy 9 Days After Administration of Irinotecan in a Patient with Gastric Cancer: A Case Report.

Introduction: Cell-free and concentrated ascites reinfusion therapy (CART) is frequently used to relieve the symptoms caused by massive ascites due to peritoneal metastasis of gastric cancer, especially in the later stages of its clinical course. Irinotecan (CPT-11) is recommended for third- or later-line chemotherapy according to gastric cancer treatment guidelines. However, the concentrations of anti-cancer drugs in the ascites and the product of CART are not well known, it is considered that some amounts of anti-cancer drugs contained in the product of CART may be readministered and induce severe adverse reactions.

Predictive and prognostic value of excision repair cross-complementing group 1 in patients with advanced gastric cancer.

Background: To define the optimal chemotherapy regimen for each patient we therefore used tissue from patients to identify molecular prognostic or predictive biomarkers.

Methods: Endoscopic biopsy specimens from primary lesions and surgical specimens on a phase III trial in patients with unresectable advanced or recurrent gastric cancer treated with docetaxel with cisplatin plus S-1 (DCS) or cisplatin plus S-1 (CS), were collected. We measured the mRNA expression of ERCC1 and analyzed SNPs in GSTP1 and ERCC1.

Myeloid subsets impede the efficacy of anti-PD1 therapy in patients with advanced gastric cancer (WJOG10417GTR study).

Background: Gastric cancer (GC) is one of the most common and deadly malignant diseases worldwide. Despite revolutionary advances, the therapeutic efficacy of anti-PD1/PDL1 monoclonal antibodies in advanced GC is still low due to the emergence of innate and acquired resistance to treatment. Myeloid cells represent the majority of human immune cells.

Both Th1 and Th2 CD4 + T-Cell Lineage Infiltrations Decrease in Post-hematopoietic Stem Cell Transplantation Colon Adenoma.

Purpose: As long-term survival improves after allogeneic hematopoietic stem cell transplantation (HSCT), the risk for secondary solid cancers, including colon cancer, also increases. However, the pathogenesis of secondary solid cancers in post-HSCT patients remains unclear. This study aimed to investigate the involvement of local immunity in colon carcinogenesis in post-HSCT patients by assessing the infiltrating T cells in colon adenomas as premalignant lesions of colon cancer in adenoma-carcinoma sequence.

Targeting SNCA in the treatment of malignant ascites in gastrointestinal cancer.

Peritoneal tumor dissemination and subsequent malignant tumor ascites (MTA) occur unexpectedly and repeatedly in patients with gastrointestinal (GI) cancers, and worsen quality of life and prognosis of the patients. Various treatments have been clinically developed for these patients, while most of the MTA cases are refractory to the treatments. Thus, effective treatments are urgently needed to improve the clinical outcomes.

Efficacy of anti-epidermal growth factor antibody rechallenge in RAS/BRAF wild-type metastatic colorectal cancer: a multi-institutional observational study.

Purpose: To investigate circulating tumor DNA (ctDNA) RAS mutant (MT) incidence before salvage-line treatment and the clinicopathological features and molecular biological factors associated with the efficacy of anti-epithelial growth factor receptor (EGFR) monoclonal antibody (mAb) rechallenge for tissue RAS/BRAF wild type (WT) metastatic colorectal cancer (mCRC).

Methods: This multi-institutional retrospective observational study included 74 patients with mCRC with tissue RAS/BRAF WT refractory to first-line chemotherapy containing anti-EGFR mAb. ctDNA RAS status was assessed using the OncoBEAM™ RAS CRC Kit.

Sustained Clinical Complete Response after Discontinuation of Trastuzumab-deruxetecan Due to Interstitial Pneumonia for HER2-positive Gastric Adenocarcinoma with Enteroblastic Differentiation (GAED).

Trastuzumab deruxtecan (T-DXd) has demonstrated remarkable efficacy as a third- or later-line chemotherapy for human epidermal growth factor receptor 2 (HER2)-positive advanced gastric and gastroesophageal junction adenocarcinomas. However, it may cause pneumonitis, and its efficacy in rare histologies such as gastric adenocarcinoma with enteroblastic differentiation (GAED) remains unclear. A 74-year-old woman with unresectable HER2-positive GAED and lung metastasis received T-DXd as a fifth-line chemotherapy.

Shared decision-making support program for older patients with advanced cancer using a question prompt list and geriatric assessment: A pilot randomized controlled trial.

Introduction: Older patients with cancer are less likely to express their treatment preferences than younger patients. Question prompt lists (QPLs) facilitate communication between patients and physicians. Geriatric assessment (GA) is recommended when older patients with cancer make treatment decisions.