DeBattista 2006.
Methods | Allocation: randomised. Blindness: participant/personnel, unclear whether blinded at outcome. Duration: 7 days. Assessment points: baseline (day 0), daily during dosing (days 1 to 7), days 14 and 28. |
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Participants | Diagnosis: psychotic depression. Structured Clinical Interview for DSM Disorders (SCID), DSM IV, clinician interview(s).
N = 221.
Age: mifepristone group mean ˜ 41 years (SD ˜ 11), placebo group mean ˜ 42 years (SD 11).
Sex: 112 M, 109 F.
Setting: inpatient and outpatient.
History: unclear.
Excluded: unstable medication condition, use of systemic or inhaled corticosteroids, ECT in past 3 months, antidepressant and/or antipsychotic in past 7 days, history of illicit drug use in past month, alcohol or drug dependence in past 6 months. Country: USA (29 sites). |
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Interventions | 1. Mifepristone: dose 600 mg/day. N = 105. 2. Placebo: N = 116. Other concurrent treatments: antipsychotics and antidepressants not allowed for 7 days of study, thereafter any indicated treatment. |
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Outcomes | Global state: rapid response (> 30% reduction BPRS total at days 7 and 28), response (> 30% reduction BPRS total at day 28 but not at day 7), positive psychotic response (< 50% improvement BPRS PSS) and depression response (< 50% improvement HAMD). Leaving the study early. Adverse events: spontaneous report of adverse events. |
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Notes | Funded by: This work was sponsored by Corcept Therapeutics, Menlo Park, California. “We acknowledge the following disclosures; CD: Speakers Bureau, Wyeth, Cephalon, Pfizer, GSK, Lilly, BMS, Cyberonics. Grant support; Wyeth, GSK, Cephalon, Pritzker Foundation, NARSAD, NIMH, Neuronetics, Cyberonics. Consultant; Corcept Therapeutics, Wyeth, Lilly, Roche, BMS. Stock‐holder; Corcept Therapeutics. JB: CEO and equity‐holder; Corcept Therapeutics, Menlo Park, CA. CB: Statistical consultant; Corcept Therapeutics. LLC: Consultant; GlaxoSmithKline, Novartis, Pfizer, Johnson & Johnson, Sepracor, Cyberonics, Bristol‐Myers Squibb, Medronic, and Wyeth. Grants/Research support; NIH, US Dept of the Interior, Cyberonics, Pfizer, Corcept Therapeutics, Medtronic, and UCB Pharma. Speakers Bureau or has received Honoraria for speaking; Cyberonics, Pfizer, Wyeth, AstraZeneca, and Cephalon." | |
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | "Patients who met the study criteria were randomised 1:1 to 7 days..." (pg 1344). |
Allocation concealment (selection bias) | Unclear risk | Unclear ‐ no statement provided. |
Blinding (performance bias and detection bias) All outcomes | Low risk | Quote: "randomised 1:1 to 7 days of inpatient treatment in a double‐blind, placebo controlled, parallel group design" (pg 1344). |
Blinding of participants and personnel (performance bias) All outcomes | Low risk | Quote: "double‐blind" ‐ probably undertaken. |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | Quote: "double‐blind" ‐ probably undertaken. |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Missing data imputed using appropriate methods (ITT analysis conducted). |
Selective reporting (reporting bias) | Low risk | All outcome measures reported. |
Other bias | High risk | Study authors have conflict of interest with sponsor/funding source. |