Effects of pain and prescription opioid use on outcomes in a collaborative care intervention for anxiety.

Roy-Byrne P, Sullivan MD, Sherbourne CD, Golinelli D, Craske MG, Sullivan G, Stein MB. Effects of pain and prescription opioid use on outcomes in a collaborative care intervention for anxiety. The Clinical Journal of Pain. 2013 Sep 1; 29(9):800-6.

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Abstract:

OBJECTIVE: To determine the effects of pain and opioid pain medication use on clinical and functional outcomes in 1004 primary care patients with an anxiety disorder randomized to receive the Coordinated Anxiety Learning and Management (CALM) collaborative care intervention (cognitive-behavioral therapy and/or medication) versus usual care. METHODS: A total of 1004 patients with panic disorder, generalized anxiety disorder, social anxiety disorder, or posttraumatic stress disorder were randomized to CALM or usual care. Outcomes at 6, 12, and 18 months were compared in patients with and without moderate pain interference (for the entire anxiety disorder group and then just those with comorbid major depression) and in patients taking and not taking opioid medication (entire group, just those with comorbid major depression, and just those with moderate pain interference). RESULTS: Patients with pain interference and patients taking opioid pain medication were more anxious [Brief Symptom Inventory anxiety subscale] and disabled (Sheehan Disability) at baseline, improved over time at similar rates, but at 18 months had lower response and remission rates. There was no moderating effect on the intervention. In patients with comorbid major depression, patients using opioid medications showed a trend for less disability improvement over time, and in patients with pain, patients using opioids showed less sustained anxiety response at 18 months. CONCLUSIONS: Anxious patients with pain benefit as much as those without pain from cognitive-behavioral therapy and medication treatment. Among patients with pain, however, there is some evidence of a reduced anxiety treatment response in those taking opioid medication, which should be further studied.