Neuroprotective effect of SSRI among 781 cancer patients receiving chemotherapy: A URCC CCOP Study
9512 Background: Cancer and its treatment impact important areas of cognitive function such as attention and memory, which are essential to patients effective psychosocial functioning and quality of life. Previous studies reported that 17% to 75% of cancer patients reported cognitive dysfunction during and after treatment. Few studies, however, have examined the effectiveness of pharmacological interventions to control cancer-related cognitive dysfunction (CRCD). The present study examines the effect of paroxetine hydrochloride (Paxil, P) on CRCD. Methods: The sample included 574 female and 207 male cancer patients between 22 and 87 years. Memory Problems was assessed using a Self-Reported Memory Problem (SRMP) measures derived from the Fatigue Symptom Checklist that relate to memory dysfunction. Cronbach coefficient alpha (α) and a principal components analysis (PCA) were conducted to determine reliability and appropriateness of the SRMP for this sample. A repeated measure ANOVA (r-ANOVA) and t-tests were used to assess changes in mean scores on the SRMP and the effect of P versus placebo. Depression was assessed using the CESD. Results: Scale reliability assessment showed α = .90, supporting the reliability of the SRMP. The PCA revealed a one-component structure that explained 72% of the variance. The r-ANOVA showed a significant difference between scores on the SRMP at baseline (after first chemotherapy cycle, and before P) and follow-up (after four cycles of chemotherapy, after P) (Wilks' Lambda = .99, F (1, 583) = 5.52, p = 0.02). The t-tests also showed a significant effect of P on CRMP (p < 0.05). P had a significant effect after controlling for depression (p < 0.001) Conclusions: CRCD is a serious problem for patients that can be alleviated by P. Future studies should examine the usefulness of other psychotropic agents and combined behavioral and pharmacologic interventions to control CRCD. Supported by NCI Grants U10CA37420, R25CA102618, and 3U01CA116924–04S1. No significant financial relationships to disclose.