Abstract OT3-14-01: A longitudinal investigation of sociocultural and behavioral influences on symptom management, biological response, and functioning among Chinese American and White female breast cancer survivors
Authors: Kwa Maryann , Schwartz Marc , Crew Katherine D. , Genkinger Jeanine M. , Brown Roger L. , Hilakivi-Clarke Leena , Kitlinska Joanna , Roblin Douglas W. , Antoni Michael , Adams Sylvia , Joseph Kathie-Ann , Chen Lei-Shih , Huei-yu Wang Judy 
Published: March 2023

Abstract
Background: Socioeconomically disadvantaged and immigrant cancer survivors account for a significant and growing proportion of the breast cancer population in the US. Research on symptom burden and control among Chinese American (CA) breast cancer survivors (BCS) is scarce. Among all BCS, over 55% report treatment-related symptoms (e.g., fatigue and pain) and psychological stress (e.g., fear of recurrence). In our preliminary cross-sectional study, we found similar rates (~58%) but showed that CA (especially low-acculturated) BCS were particularly likely to report fatigue, pain, and poorer physical functioning relative to non-Hispanic White (NHW) BCS. We understand very little about whether CA and NHW BCS have different ways of managing symptoms, improving quality of life and decreasing risk for functional decline. We therefore propose a study to examine how CA and NHW BCS, two culturally distinct groups with divergent social resources, adapt to breast cancer. Study design: This longitudinal, prospective study will investigate sociocultural influences on individual coping behaviors and how they in turn affect racial differences in inflammation markers, symptom severity, and functional outcomes in breast cancer. This study will enroll 260 CA and 260 NHW female BCS to examine multifactorial pathways to breast cancer survivorship outcomes. The CA cases will be age- and stage-matched to the NHW cases. Utilizing a multilevel biobehavioral framework, we will investigate the dynamics of biological, sociocultural, and behavioral (diet and exercise) influences on symptom severity, physiologic status, and functional outcomes. Participants will complete telephone survey interviews and provide blood samples at baseline and 6- and 12-month follow-up. Pro-inflammatory cytokines (e.g., IL-1β, IL-1a, IL-6, IL8, IL10, TNFα, TNFꞵ, and CRP) and cortisol will be analyzed. In-depth individual interviews with a subset of participants will be conducted to investigate causal factors in order to develop individually and culturally appropriate interventions to improve future clinical care for targeted breast cancer survivor populations. This study is supported by NIH R01CA248413. Eligibility criteria: Eligible participants are CA and NWH women (age &gt;= 18) who are diagnosed with invasive breast cancer (stage I, II, or III), are 1-5 years post diagnosis, and have completed primary treatment (e.g., surgery, radiation, chemotherapy, and/or targeted therapy). Patients currently on adjuvant endocrine therapy are allowed. Specific aims: Aim 1: Examine whether CA BCS’ symptom, functional, and physiologic outcomes (e.g., cytokines and cortisol), and trajectory of these outcomes differ from NHW BCS at baseline, 6- and 12-month follow-up, controlling for covariates. Aim 2: Examine to what extent social resources mediate BCS’ individual behavior (e.g., medical communication, diet, and physical activity) and to what extent such pathways explain outcome differences (Aim1) among BCS. Aim 3: Examine whether race and acculturation moderate the mediational pathways. Statistical methods: Multiple general linear mixed models will be performed to examine racial differences in the trajectory of symptom and biobehavioral outcomes across time, controlling for covariates (Aim 1). To examine mediation and moderation effects (Aims 2 and 3), we will use a cross-lagged path analysis model to simultaneously describe reciprocal relationships, or directional influences, between variables over time. Present accrual and target accrual: A total of 520 participants (260 CA and 260 NHW) will be enrolled at NYU Perlmutter Cancer Center, Columbia University Irving Medical Center, Georgetown University Medical Center, and Texas A&M University community networks. Contact information: Judy Huei-yu Wang, PhD: jw235@gunet.georgetown.edu or 202-687-6306 Maryann Kwa, MD: maryann.kwa@nyulangone.org or 212-731-6364
Citation Format: Maryann Kwa, Marc Schwartz, Katherine D. Crew, Jeanine M. Genkinger, Roger L. Brown, Leena Hilakivi-Clarke, Joanna Kitlinska, Douglas W. Roblin, Michael Antoni, Sylvia Adams, Kathie-Ann Joseph, Lei-Shih Chen, Judy Huei-yu Wang. A longitudinal investigation of sociocultural and behavioral influences on symptom management, biological response, and functioning among Chinese American and White female breast cancer survivors [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr OT3-14-01.