Pascual 2008.
Study characteristics | ||
Methods | 12‐week trial with 2 arms:
Duration of trial: 12 weeks, following a 2‐week baseline period Country: Spain Setting: outpatient |
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Participants |
Method of recruitment of participants: "[...] referred from clinical service (outpatient and psychiatrics emergency services)" (Pascual 2008, p. e2) Overall sample size: 60 Diagnosis of borderline personality disorder: DSM‐IV Means of assessment: SCID‐II and DIB‐R Mean age: 29.2 years (SD = no information; range = no information) Sex: 81.67% women Comorbidity: no information Inclusion criteria
Exclusion criteria
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Interventions |
Experimental group
Treatment name: ziprasidone
Number randomised to group: 30
Duration: 12 weeks Control/comparison group Comparison name: placebo Number randomised to group: 30 Duration: 12 weeks Both groups Concomitant psychotherapy: Patients participated in weekly, 2‐hour, non‐specific group psychotherapy sessions. Concomitant pharmacotherapy: allowed to continue with benzodiazepine (maximum of 40 mg/day), antidepressants, and mood stabilisers if initiated prior to inclusion; doses could not be modified. Proportions of participants taking standing medication during trial observation period: In the ziprasidone condition, 76.7% of patients were taking benzodiazepines, 70% were taking antidepressants and 40% were taking mood stabilisers. In the placebo condition, the proportions were 83.3% benzodiazepines, 73.3% antidepressants and 40% mood stabilisers. |
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Outcomes |
Primary outcomes
Secondary outcomes
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Notes |
Sample calculation: no information Ethics approval: yes Funding source: funded or partially funded by pharmaceutical industry Conflicts of interest: No conflicts of interest were reported besides partial funding from the pharmaceutical industry. Comments from trial authors (limitations)
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Quote: "Randomization was performed by blocks of 4 generated using the SPSS software package". (Pascual 2008, p. 604) |
Allocation concealment (selection bias) | Unclear risk | Comment: no information provided on allocation concealment to permit a judgement of low or high risk of bias |
Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | Comment: The trial was referred to as being double‐blind, however, no information was provided on how blinding was carried out or maintained. |
Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Comment: The trial was referred to as being double‐blind, however, no information was provided on how blinding was carried out or maintained. |
Incomplete outcome data (attrition bias) All outcomes | High risk |
Quote: "All analyses were conducted on an intent‐to‐treat basis. [...] Patients were included in the analyses only if they had a baseline measure and at least 1 post‐baseline measure. [...] The end point was based on a last‐observation‐carried‐forward (LOCF) strategy." (Pascual 2008, p. 604 et seq.) Comment: intent‐to‐treat data referred to all participants that were randomly assigned and who initiated the experimental phase (Pascual 2008, p. 605). However, it remained unclear why 5 out of the 65 eligible participants "dropped out during the selection phase". (Pascual 2008, p. 605) Reasons for dropout specified and balanced across the two groups, including withdrawal due to "clinician decision/insufficient treatment effect" (Pascual 2008, p. 605 et seq.) Of the 60 patients enrolled, 29 completed the full 12 weeks of the trial (13 in ziprasidone group, 16 in placebo group). Reasons for early termination: Need of psychiatric hospitalisation: 4 in ziprasidone group/3 in placebo group Adverse events/patient decision: 9/4 Clinician decision/insufficient treatment effect: 3/7 Other reasons: 1/0 Continuous data based on LOCF data of the ITT sample; dichotomous data based on ITT sample |
Selective reporting (reporting bias) | Low risk | Comment: The trial protocol was available and all of the prespecified primary and secondary outcomes that were of interest in the review were reported in the prespecified way. |
Vested Interest (funding and/or author affiliations) | High risk | Quote: "This study was supported by grants from the Fondo de Investigación Sanitaria (Ministry of Health, Spain), the REM‐TAP Network, and Pfizer, Madrid, Spain. The authors report no additional financial or other relationships relevant to the subject of this article." (Pascual 2008, p. 603) |
Other bias | Low risk | Comment: no indication of other bias |