Awareness and perceptions of clinical trials in patients with cancer and their families in Turkey.

Abstract

e18780 Background: Patient preference plays an important role in enrolling in clinical trials. We conducted this study to understand the perceptions knowledge and willingness of cancer patients or their families about clinical trials. Methods: A questionnaire in Turkish language was conducted including the sociodemographic characteristics of the participants and the factors that may affect their decision to participate in clinical trials. The study was carried out in 5 tertiary health care institutions with clinical research centers in Turkey. Adult patients diagnosed with solid tumors or their family members who agreed to participate were surveyed by medical doctors. Participants were interviewed between January 2020 and April 2021. Comparisons between groups were carried out using chi-square test χ2 for the categorical variables. IBM SPSS25 was used in analyses and p<0.05 was accepted as the level of significance. Results: A total of 978 patients whose age ranged 18 and 82 (Mean= 51.43, SD=14.41) participated in the study. %50.3 was male, %40.7 was female. Willingness to participate a clinical trial was positively corelated with participants self reported health condition is excellent or good (p=0.206), well knowledge about clinical trials (p<0.001), high school or higher education level (p<0.001), household income above poverty level (p=0.003), previously received systemic cancer treatment of himself or family member or friend (p=0.03). %73.7 stated they are more willing to participate if their oncology specialist conducting the clinical trial. %84.3 want to get information about the clinical trial from their oncology specialist. %72.5 stated that positive experiences of a previous clinical trial participant will affect their decision making. Top corcerns about clinical trials are possible treatment side effects (%56.7), being treated as a test subject (%29), risk of placebo (%20.1). Top motivations are accessing best doctors (%45.8), accessing newest and best treatment options (%40.7), getting more information about their health condition (%68.9), helping science adventions (%82.6). Conclusions: Even when patients are eligible for a clinical trial physicians may somehow not discuss the clinical trial option. For patients oncology specialists are a highly trusted source of information and can play an important role in raising awareness and encouraging participation. [Table: see text] [Table: see text]