Assessing disparities in pancreatic cancer outcomes in African Americans.

Authors

null

Shiva Shrotriya

Corewell Health William Beaumont University Hospital, Royal Oak, MI

Shiva Shrotriya , Bipin Ghimire , Ujjwal Karki , Shyam K. Poudel , Can Wang , Kadhim Al-Banaa , Daniel Ezekwudo , Ishmael A. Jaiyesimi , Dana Zakalik

Organizations

Corewell Health William Beaumont University Hospital, Royal Oak, MI

Research Funding

No funding sources reported

Background: Pancreatic Adenocarcinoma (PA) is a leading cause of cancer-related death across the world, with poorer outcomes noted in minority populations. The observed variation in outcomes has been attributed to delayed diagnosis, barriers to optimal treatment and health care related disparities. We evaluated the impact of race on clinical presentation and outcomes in pancreatic cancer at a large academic teaching center. Methods: We performed a retrospective review of patients with pancreatic adenocarcinoma diagnosed between January 2016 to December 2021. The demographic characteristics (age, tobacco use, alcohol use, BMI); comorbidities (diabetes, acute/chronic pancreatitis); pathology, treatment (chemotherapy regimen, radiation, surgery) and recurrence free survival (RFS) and overall survival based on race were analyzed. Results: The cohort (N=947) consisted of 147 (16%) African Americans (AA) and 775 (82%) Non-Hispanic Whites (NHW). The mean age at diagnosis was 68 years (±10) among AA and 70 years (±11) in NHW. Thirty-seven (26%) of AA and 104 (14%) of NHW were current smokers; 46 (33%) of AA and 323 (45%) of NHW consumed alcohol regularly. Among AA, 32 (22%) were obese (BMI>30), compared to 194 (25%) in NHW. Other comorbidities included diabetes (35% in AA vs. 32% in NHW) and acute/chronic pancreatitis (11% among AA vs. 9% among NHW). Eighteen percent (18%) of AA and 17% of NHW had stage II disease, 16% and 12% had stage III and 48% in both had stage IV disease respectively. The treatment modality consisted of chemotherapy (63% in AA vs. 66% in NHW), surgery (25% in AA vs. 26% in NHW) and radiation (10% in AA vs. 12% in NHW). The median time to treatment initiation was 30 (17, 41) months for AA and 26 (16, 40) months for NHW. On univariate analysis, AA race was associated with younger age at diagnosis (p 0.043), higher current tobacco use (p 0.001), lower alcohol use (p 0.012), lower rates of obesity (p 0.024) and higher rate of acute pancreatitis (p 0.037) in pancreatic cancer. On multivariate analysis, race was not associated with difference in recurrence free survival (12 months in AA vs. 14 months in NHW; p 0.96) when adjusted for age, sex, alcohol use, tobacco use, cancer stage and chemotherapy. High mean age, clinical stage II, III and IV, current alcohol use, underweight and BMI>30 and cerebrovascular accident as a comorbidity was associated with worse overall survival when adjusted for other variables. Conclusions: Our study revealed that pancreatic cancer in AA was diagnosed at a younger age, associated with active smoking and pancreatitis. We observe there was no difference in treatment initiation among AA and NHW. There was no significant difference in recurrence free survival and overall survival compared to NHW when adjusted for other variables. Future studies incorporating germline mutations, novel biomarkers are needed to determine impact of racial health disparities on outcomes in pancreatic cancer.

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Abstract Details

Meeting

2024 ASCO Gastrointestinal Cancers Symposium

Session Type

Poster Session

Session Title

Poster Session B: Cancers of the Pancreas, Small Bowel, and Hepatobiliary Tract

Track

Pancreatic Cancer,Hepatobiliary Cancer,Neuroendocrine/Carcinoid,Small Bowel Cancer

Sub Track

Cancer Disparities

Citation

J Clin Oncol 42, 2024 (suppl 3; abstr 612)

DOI

10.1200/JCO.2024.42.3_suppl.612

Abstract #

612

Poster Bd #

H18

Abstract Disclosures

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