Shifting perceptions of alternative therapies in cancer patients during the COVID-19 pandemic: Results from the Complementary and Alternative Medicine Exposure in Oncology (CAMEO) Study

ABSTRACT

Background: Complementary and alternative medicine (CAM) use has been associated with worse survival outcomes in cancer patients compared to standard of care therapies. CAM has received a significant increase in public awareness and interest in the COVID-19 pandemic era. We sought to understand how the COVID-19 pandemic affected CAM use and perceptions in cancer patients. Methods: Data was collected from adult cancer patients prospectively enrolled on a cross-sectional survey conducted at an NCI-designated cancer center and a comprehensive cancer center between 2020 and 2021. The survey included questions assessing changes in patient attitude towards CAM and likelihood of using CAM, both relative to prior to COVID-19. Analyzed CAM users included those taking vitamin, mineral and herbal supplements, alternative medicines and special diets, and excluded mindbody practices as the focus of this analysis was on enteral and parenteral CAM therapies. Differences in the impact of COVID-19 on CAM use beliefs and practices between CAM users and non-users were analyzed with χ2 and two-sample t-tests. Results: Out of 749 respondents, 578 (77%) used any CAM and 470 (63%) used enteral or parenteral CAM. Results shown in table. Compared to prior to COVID- 19, CAM users were more likely to view CAM more favorably (12% vs 5%, p < 0.01), while non-users were more likely to have an unchanged opinion (90% vs 84%, p = 0.03). Females had higher rates of viewing CAM more favorably than males (80% vs 58%, p = 0.04). Patients who viewed CAM more favorably had higher rates of self-reported incurable cancer (36% vs 11%, p = 0.04), declining recommended hormone therapy (22% vs 0%, p < 0.01), and higher trust of social media (19% vs 0%, p = 0.02) and websites (24% vs 0%, p < 0.01). Since the start of COVID-19, CAM users were more likely to report increased likelihood of using CAM (12% vs 6%, p = 0.01). Patients who were more likely to use CAM had higher rates of declining recommended chemotherapy (12% vs 0%, p = 0.02), and higher trust of social media (15% vs 2%, p = 0.01) and websites (28% vs 7%, p < 0.01). Conclusions: During the COVID-19 pandemic, attitudes on CAM use in oncology patients have become increasingly polarizing. Patients with favorable attitudes toward CAM were likely to decline recommended standard of care therapy and more like to use CAM since COVID-19. This data helps characterize shifting attitudes toward CAM and may help guide shared decision-making between physician and patient.