Disparity in use of modern combination chemotherapy associated with facility type influences survival of 2655 patients with advanced pancreatic cancer

A randomized phase II study of full dose gemcitabine versus reduced dose gemcitabine and nab-paclitaxel in vulnerable patients with non-resectable pancreatic cancer (DPCG-01)

BACKGROUND

According to current evidence, the best treatment for fit patients with non-resectable pancreatic cancer (PC) is combination chemotherapy, whereas frail patients are recommended gemcitabine (Gem) monotherapy. Randomized controlled trials in colorectal cancer and a post-hoc analysis of gemcitabine and nab-paclitaxel (GemNab) in PC suggest, however, that reduced dose of combination chemotherapy may be feasible and more efficient compared to monotherapy in frail patients. The aim of this study is to investigate whether reduced dose GemNab is superior to full dose Gem in patients with resectable PC, who are not candidates for full dose combination chemotherapy in first line.

METHODS

The Danish Pancreas Cancer Group (DPCG)-01 trial is a national multicenter prospective randomized phase II trial. A total of 100 patients in ECOG performance status 0-2 with non-resectable PC, not candidate for full dose combination chemotherapy in first line, but eligible for full dose Gem, will be included. Patients are randomized 1:1 to either full dose Gem or GemNab in 80% of recommended dose. The primary endpoint is progression-free survival. Secondary endpoints are overall survival, overall response rate, quality of life, toxicity and rate of hospitalizations during treatment. The correlation between blood inflammatory markers, including YKL-40 and IL-6, circulating tumor DNA, and tissue biomarkers of resistance to chemotherapy and outcome will be explored. Finally, the study will include measures of frailty (G8, modified G8, and chair-stand-test) to assess whether scoring would enable a personalized allocation to different treatments or indicates a possibility for interventions.

DISCUSSION

Single-drug treatment with Gem has for frail patients with non-resectable PC been the main treatment option for more than thirty years, but the impact on outcome is modest. If improved results and sustained tolerability with reduced dose combination chemotherapy can be shown, this could change the future practice for this increasing group of patients.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT05841420. Secondary Identifying No: N-20210068. EudraCT No: 2021-005067-52.

PROTOCOL VERSION

1.5, 16-MAY-2023.

Trends in pancreatic cancer incidence, characteristics, and outcomes in Denmark 1980-2019: A nationwide cohort study

OBJECTIVE

To describe time-trends in incidence, characteristics, treatments, and survival in pancreatic cancer patients in Denmark during 1980-2019.

DESIGN

A nationwide population-based cohort study of all Danish patients diagnosed with exocrine pancreatic cancer during the study period. Data was obtained from individual-level cross linkage between Danish healthcare registries. We present descriptive characteristics and survival estimates, which was obtained using the Kaplan-Meier estimator and Cox proportional hazards regression models.

RESULTS

During the study period, 32,107 patients were diagnosed with pancreatic cancer. In the most recent period, the age-standardized incidence rate was 17.7 per 100,000 person-years. Throughout the study period, between 18.4% and 27.5% of patients had no tumor staging performed, and approximately half of the patient were only offered best supportive care. The proportion of patients treated with surgery doubled during the study period, and the use of adjuvant and neoadjuvant oncological therapy increased substantially. Median survival after surgical resection also increased to 25.8 months in the most recent time period.

CONCLUSION

Pancreatic cancer incidence is increasing in Denmark, and this increase is projected to continue. The proportion of patients offered curative-intent treatment increased, which translates into an increase in overall survival. All numbers are comparable to best international standards.