Predisposición de los pacientes a participar en ensayos clínicos en el Hospital Dr. César Milstein: un estudio de corte transversal

Introduction

Clinical trials are a fundamental tool in evidence-based medicine, with participant recruitment being a critical factor for their execution. Low participation in a study leads to inadequate sample size. Older adults constitute a minority in clinical trials, and various factors influence their level of participation and retention during the study process. Our objective is to determine the willingness of older adults to participate in clinical trials and identify their main barriers and facilitator.

Methods

A cross-sectional study was carried out on outpatient adults over 60 years of age. The rate of desire for voluntary participation in clinical trials was determined and through a validated survey “National Health Information Trends Survey (HINTS 5, cycle 4)” the knowledge, rate of prior participation in CE and the influence of different factors that could be associated with a positive attitude to participate. These factors were analyzed using ordinal logistic regression.

Results

251 older adults were surveyed. Of them, 171 (68%) reported not having any knowledge about clinical trials and 80 (31.87%) reported having it to some degree. 12 patients (5%) previously participated in a CS and up to 88 patients (35%) expressed that they would probably or definitely participate in one. It was observed that, the older the age, the less willingness to participate in CE [OR]: 0.55 (CI 95% 0.34-0.88). Likewise, male sex was associated with a greater desire to participate [OR]: 1.74 (CI 95% 1.06-2.84), respectively. The scenarios that were associated with a greater desire to participate in CE were knowing that by participating you could help others [OR]: 1.95 (95% CI 1.36-2.178), the possibility of receiving help for participating [OR]: 1.69 (95% CI 1.26-2.26) and the possibility of trying a new type of medical care [OR]: 1.71 (95% CI 1.20-2.42).

Conclusions

The level of knowledge about CE among older adults is low and up to a third of them would participate as volunteers in a CE. The dissemination of information about ECs could encourage a higher participation rate.