{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T03:29:34Z","timestamp":1787110174004,"version":"build-2736575974"},"reference-count":35,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T00:00:00Z","timestamp":1782432000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T00:00:00Z","timestamp":1782432000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100007437","name":"TrygFonden","doi-asserted-by":"publisher","award":["123488"],"award-info":[{"award-number":["123488"]}],"id":[{"id":"10.13039\/501100007437","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Personality &amp;amp; Mental Health"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    We conducted a randomized clinical trial assessing the beneficial and harmful effects of short\u2010term versus long\u2010term mentalization\u2010based therapy (MBT) for outpatients with borderline personality disorder (BPD) and found no evidence of a difference on BPD symptom severity, functional impairment, quality of life, global functioning, and severe self\u2010harm. In this paper, we assessed the effects of short\u2010term versus long\u2010term MBT on the exploratory outcome, psychiatric symptoms, assessed with the Symptom Checklist\u201090\u2010Revised (SCL\u201090\u2010R). Participants included the full intention\u2010to\u2010treat sample of the original trial of\n                    <jats:italic>N<\/jats:italic>\n                    \u2009=\u2009166 randomized outpatients with subthreshold or a diagnosis of BPD (short\u2010term MBT\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200984, long\u2010term MBT\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200982), who were randomly assigned to short\u2010term MBT (5\u2009months) or long\u2010term MBT (14\u2009months). Psychiatric symptoms were assessed with the SCL\u201090\u2010R at baseline, 8, 16, and 24\u2009months after randomization. The 16\u2010month time point was predefined as our time point of primary interest. Regression analyses showed no evidence of a difference when assessing general symptom severity (MD \u22120.02, 95% CI \u22120.24\u20130.20;\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.841) or any of the subscales, including anxiety, depression, hostility, interpersonal sensitivity, obsession\/compulsion, paranoid ideation, phobic anxiety, psychoticism, and somatization. At the exploratory 24\u2010month follow\u2010up time point, similar results were obtained. In conclusion, short\u2010term MBT neither weakened nor improved patients' psychiatric symptoms compared with long\u2010term MBT for outpatients with BPD.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Trial Registration:<\/jats:bold>\n                    ClinicalTrials.gov: NCT03677037\n                  <\/jats:p>","DOI":"10.1002\/pmh.70088","type":"journal-article","created":{"date-parts":[[2026,6,27]],"date-time":"2026-06-27T06:00:26Z","timestamp":1782540026000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effects of Short\u2010Term Versus Long\u2010Term Mentalization\u2010Based Therapy on Psychiatric Symptoms in Outpatients With Borderline Personality Disorder: Exploratory Results From a Randomized Clinical Trial"],"prefix":"10.1002","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4492-9447","authenticated-orcid":false,"given":"Tine S. D.","family":"Harp\u00f8th","sequence":"first","affiliation":[{"name":"Mental Health Center Stolpeg\u00e5rd Copenhagen University Hospital \u2013 Herlev and Gentofte  Herlev Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sophie","family":"Juul","sequence":"additional","affiliation":[{"name":"Mental Health Center Stolpeg\u00e5rd Copenhagen University Hospital \u2013 Herlev and Gentofte  Herlev Denmark"},{"name":"Copenhagen Trial Unit, Centre for Clinical Intervention Research Copenhagen University Hospital, Rigshospitalet  Copenhagen Denmark"},{"name":"Department of Psychology University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Markus Harboe","family":"Olsen","sequence":"additional","affiliation":[{"name":"Copenhagen Trial Unit, Centre for Clinical Intervention Research Copenhagen University Hospital, Rigshospitalet  Copenhagen Denmark"},{"name":"Department of Neuroanaesthesiology, the Neuroscience Centre Copenhagen University Hospital \u2013 Rigshospitalet  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0508-7929","authenticated-orcid":false,"given":"Emilie","family":"Hestbaek","sequence":"additional","affiliation":[{"name":"Mental Health Center Stolpeg\u00e5rd Copenhagen University Hospital \u2013 Herlev and Gentofte  Herlev Denmark"},{"name":"Department of Psychology University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7756-4694","authenticated-orcid":false,"given":"Caroline Barkholt","family":"Kamp","sequence":"additional","affiliation":[{"name":"Copenhagen Trial Unit, Centre for Clinical Intervention Research Copenhagen University Hospital, Rigshospitalet  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie","family":"Rishede","sequence":"additional","affiliation":[{"name":"Psychiatry East, Region Zealand  Roskilde Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frederik Weischer","family":"Frandsen","sequence":"additional","affiliation":[{"name":"Mental Health Center Stolpeg\u00e5rd Copenhagen University Hospital \u2013 Herlev and Gentofte  Herlev Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0498-2246","authenticated-orcid":false,"given":"Sune","family":"Bo","sequence":"additional","affiliation":[{"name":"Department of Psychology University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0536-1820","authenticated-orcid":false,"given":"Stig","family":"Poulsen","sequence":"additional","affiliation":[{"name":"Department of Psychology University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Per","family":"S\u00f8rensen","sequence":"additional","affiliation":[{"name":"Mental Health Center Stolpeg\u00e5rd Copenhagen University Hospital \u2013 Herlev and Gentofte  Herlev Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anthony","family":"Bateman","sequence":"additional","affiliation":[{"name":"Research Department of Clinical, Educational and Health Psychology University College London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Janus Christian","family":"Jakobsen","sequence":"additional","affiliation":[{"name":"Copenhagen Trial Unit, Centre for Clinical Intervention Research Copenhagen University Hospital, Rigshospitalet  Copenhagen Denmark"},{"name":"Department of Regional Health Research, the Faculty of Health Sciences University of Southern Denmark  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