Willem J. Koemans

Groningen, GR, Netherlands

Last Updated: 09/26/2026

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Found 19 publications

Systemic therapy, gastrectomy, cytoreductive surgery, and hyperthermic intraperitoneal chemotherapy versus systemic therapy alone for gastric cancer with limited peritoneal metastases (PERISCOPE II): final results of a multicentre, randomised, controlled, phase 3 trial after an unplanned commissioned interim analysis.

Systemic therapy, gastrectomy, cytoreductive surgery, and hyperthermic intraperitoneal chemotherapy versus systemic therapy alone for gastric cancer with limited peritoneal metastases (PERISCOPE II): final results of a multicentre, randomised, controlled, phase 3 trial after an unplanned commissioned interim analysis.

Journal: The Lancet. Oncology

Published: November 20, 2025

Karyotype evolution in response to chemoradiotherapy and upon recurrence of esophageal adenocarcinomas.

Karyotype evolution in response to chemoradiotherapy and upon recurrence of esophageal adenocarcinomas.

Journal: Cell reports

Published: February 28, 2024

Recurrent Disease After Esophageal Cancer Surgery: A Substudy of The Dutch Nationwide Ivory Study.

Recurrent Disease After Esophageal Cancer Surgery: A Substudy of The Dutch Nationwide Ivory Study.

Journal: Annals of surgery

Published: July 26, 2022

Identification of Novel Molecular Subgroups in Esophageal Adenocarcinoma to Predict Response to Neo-Adjuvant Therapies.

Identification of Novel Molecular Subgroups in Esophageal Adenocarcinoma to Predict Response to Neo-Adjuvant Therapies.

Journal: Cancers

Published: July 26, 2022

Trends in Distal Esophageal and Gastroesophageal Junction Cancer Care: The Dutch Nationwide Ivory Study.

Trends in Distal Esophageal and Gastroesophageal Junction Cancer Care: The Dutch Nationwide Ivory Study.

Journal: Annals of surgery

Published: February 07, 2022

Reply to Correspondence to "Treatment of PERItoneal dissemination in Stomach Cancer patients with cytOreductive surgery and hyperthermic intraPEritoneal chemotherapy (HIPEC): first results of the PERISCOPE I study".

Reply to Correspondence to "Treatment of PERItoneal dissemination in Stomach Cancer patients with cytOreductive surgery and hyperthermic intraPEritoneal chemotherapy (HIPEC): first results of the PERISCOPE I study".

Journal: The British journal of surgery

Published: November 12, 2020

High CD8+ tumour-infiltrating lymphocyte density associates with unfavourable prognosis in oesophageal adenocarcinoma following poor response to neoadjuvant chemoradiotherapy.

High CD8+ tumour-infiltrating lymphocyte density associates with unfavourable prognosis in oesophageal adenocarcinoma following poor response to neoadjuvant chemoradiotherapy.

Journal: Histopathology

Published: November 07, 2020

Reply to: Comments on "Systemic exposure of oxaliplatin and docetaxel in gastric patients with peritonitis carcinomatosis treated with intraperitoneal hyperthermic chemotherapy".

Reply to: Comments on "Systemic exposure of oxaliplatin and docetaxel in gastric patients with peritonitis carcinomatosis treated with intraperitoneal hyperthermic chemotherapy".

Journal: European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology

Published: September 17, 2020

Tumor characteristics and clinical outcome of peritoneal metastasis of gastric origin treated with a hyperthermic intraperitoneal chemotherapy procedure in the PERISCOPE I trial.

Tumor characteristics and clinical outcome of peritoneal metastasis of gastric origin treated with a hyperthermic intraperitoneal chemotherapy procedure in the PERISCOPE I trial.

Journal: Journal of surgical oncology

Published: September 08, 2020

Synchronous peritoneal metastases of gastric cancer origin: incidence, treatment and survival of a nationwide Dutch cohort.

Synchronous peritoneal metastases of gastric cancer origin: incidence, treatment and survival of a nationwide Dutch cohort.

Journal: Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association

Published: September 01, 2020

Systemic exposure of oxaliplatin and docetaxel in gastric cancer patients with peritonitis carcinomatosis treated with intraperitoneal hyperthermic chemotherapy.

Systemic exposure of oxaliplatin and docetaxel in gastric cancer patients with peritonitis carcinomatosis treated with intraperitoneal hyperthermic chemotherapy.

Journal: European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology

Published: July 16, 2020

The metastatic pattern of intestinal and diffuse type gastric carcinoma - A Dutch national cohort study.

The metastatic pattern of intestinal and diffuse type gastric carcinoma - A Dutch national cohort study.

Journal: Cancer epidemiology

Published: July 14, 2020

Showing 1-12 of 19

Last Updated: 09/26/2026