Tumor Necrosis Factor Alpha antagonists, which are used for the treatment of inflammatory diseases, are considered to be associated with psychiatric diseases.Herein we have reported an adult ankylosing spondylitis case with psychotic depression induced by adalimumab therapy and improved after treatment. We aimed both to discuss the relationship between psychiatric disease and inflammatory factor over this case and to make contribution to the literature. A 57-year-old male patient. He had experienced depressive symptoms nearly 5 months ago after 15 days of adalimumab therapy started for ankylosing spondylitis. Meanwhile, the symptoms of the patient, who continued adalimumab therapy once every two weeks, progressed and accompanied by psychotic symptoms such as disorganized speaking and behavior. The patient was admitted to the psychiatry clinic; however, his complaints did not significantly improve with treatment but rapidly regressed after discontinuation of adalimumab therapy. To our knowledge, there is limited data on the mood episodes triggered by adalimumab. In the present case, presence of a connection between symptom onset and the date of starting the medication, as well as rapid symptom regression with discontinuation of the medication, was considered as potential adverse drug effect according to the Naranjo Algorithm. This suggests that alteration in proinflammatory processes such as Tumor Necrosis Factor (TNF) might be associated with the onset of mood episodes. Further studies would be important in understanding the role of immune system in the pathophysiology of depression, particularly the sub-types such as psychotic depression.
Key words: Psychotic Depression, Adalimumab, TNF-Alpha Antagonists
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