The psychological and psychiatric effects of rIL-2 therapy: a controlled clinical trial

Psycho-oncology
L G WalkerO Eremin

Abstract

It has been suggested that recombinant interleukin-2 (rIL-2) may cause pyschological and psychiatric problems, although the effects of rIL-2 on its own have not been well documented. To evaluate these effects, 17 patients with advanced colorectal cancer took part in a randomised, parallel group study of rIL-2 with chemotherapy (5-fluorouracil and leucovorin) versus chemotherapy alone. Patients were assessed regularly by means of various psychometric tests including the Hospital Anxiety and Depression Scale, the Mood Rating Scale, the Mini-Mental State Examination, the Digit Symbol Substitution Test, the Trail-Making Test and the Benton Revised Visual Retention Test. Rigorous discontinuation criteria were applied to ensure that the effect of time-related variables did not influence the results. Compared with patients who were given chemotherapy alone, patients receiving immunochemotherapy reported reduced energy, impaired confidence, higher depressed mood and more confusion. Immunochemotherapy was rated as more distressing than chemotherapy alone and patients reported a greater incidence of appetite impairment, weight loss, poor concentration and fever. Cognitive assessments indicated that brain dysfunction can be caused by rIL-...Continue Reading

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Citations

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