Buprenorphine (Suboxone) treatment of Refractory Depression

I can’t remember– did I ever point out this article about the use of buprenorphine for depression? I stumbled across it today while looking for something else.  The paper is from 1995, about a study done even earlier– well before Suboxone was around.
Here is the abstract:
Opiates were used to treat major depression until the mid-1950s. The advent of opioids with mixed agonist-antagonist or partial agonist activity, with reduced dependence and abuse liabilities, has made possible the reevaluation of opioids for this indication. This is of potential importance for the population of depressed patients who are unresponsive to or intolerant of conventional antidepressant agents. Ten subjects with treatment-refractory, unipolar, nonpsychotic, major depression were treated with the opioid partial agonist buprenorphine in an open-label study. Three subjects were unable
to tolerate more than two doses because of side effects including malaise, nausea, and dysphoria. The remaining seven completed 4 to 6 weeks of treatment and as a group showed clinically striking improvement in both subjective and objective measures of depression. Much of this improvement was observed by the end of 1 week of treatment and persisted throughout the trial. Four subjects achieved complete remission of symptoms by the end of the trial (Hamilton Rating Scale for Depression scores less or equal to 6), two were moderately improved, and one deteriorated. These
findings suggest a possible role for buprenorphine in treating refractory depression. (J Clin Psychopharmacol 1994;15:49-57).
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