Using patient-reported outcomes from the PROCLAIM trial to assess the impact of universal germline genetic testing for prostate cancer patients.

BACKGROUND

Although germline genetic testing can inform medical management for patients with prostate cancer (PCa), data are limited regarding patient-reported outcomes (PROs) after germline genetic testing for PCa. Recall and comprehension of germline genetic testing results, uptake of post-test clinical recommendations, and psychological impact of germline genetic testing among patients with PCa were evaluated.

METHODS

This is a secondary analysis of data from the PROCLAIM trial. PROs were analyzed overall and by germline genetic testing results. Differences between groups were determined by two-tailed Fisher's exact test with significance set at p < 0.05.

RESULTS

Among 494 patients with informative survey responses, 60% and 71% accurately recalled and interpreted their germline genetic testing results, respectively, with the highest rates among patients with negative results and the lowest among those with variant of uncertain significance-only (VUS) results. Among 42/55 (76%) patients with positive results for whom clinicians made germline genetic testing-informed recommendations, 39 (93%) completed or planned to complete >1 clinical recommendation. Conversely, no further recommendations were made for 160/221 (72%) and 211/218 (97%) patients with VUS and negative results, respectively. However, 57% (213/371) of these patients indicated that they or their family members intended to pursue clinical management strategies that were not recommended by their clinicians. Of the patients who responded to the survey, >90% of patients reported no post-germline genetic testing increase in their level of concern for themselves or their family members.

CONCLUSION

germline genetic testing for patients with PCa did not cause appreciable psychological harm to the tested patients. Furthermore, patients with positive results had a high uptake of clinician-recommended management strategies. Of note, there were inconsistencies in the understanding of VUS results, with some clinicians making recommendations not warranted by personal/family history; conversely, some patients pursued management strategies not recommended by their clinicians. This suggests that educational efforts are needed in the communication of germline genetic testing results and clinical recommendations to patients.