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This paper describes the protocol for an evaluation of a metacognitive therapy programme designed specifically for PGD, to reduce the psychological distress and loss of functioning resulting from bereavement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and analysis<\/jats:title>\n                    <jats:p>The proposed trial comprises three phases. Phase 1 consists of a review of the literature and semistructured interviews with key members of the target population to inform the development of a metacognitive therapy programme for Prolonged Grief. Phase 2 involves a randomised controlled trial to implement and evaluate the programme. Male and female adults (N=34) will be randomly assigned to either a wait list or an intervention group. Measures of PGD, anxiety, depression, rumination, metacognitions and quality of life will be taken pretreatment and posttreatment and at the 3-month and 6-month follow-up. The generalised linear mixed model will be used to assess treatment efficacy. Phase 3 will test the social validity of the programme.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>This study is the first empirical investigation of the efficacy of a targeted metacognitive treatment programme for PGD. A focus on identifying and changing the metacognitive mechanisms underpinning the development and maintenance of prolonged grief is likely to be beneficial to theory and practice.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Ethics<\/jats:title>\n                    <jats:p>Ethics approval was obtained from Curtin University Human Research Ethics Committee (Approval number HR 41\/2013.)<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration number<\/jats:title>\n                    <jats:p>ACTRN12613001270707.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2014-007221","type":"journal-article","created":{"date-parts":[[2015,12,9]],"date-time":"2015-12-09T08:46:49Z","timestamp":1449650809000},"page":"e007221","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":16,"title":["Efficacy of metacognitive therapy for prolonged grief disorder: protocol for a randomised controlled trial"],"prefix":"10.1136","volume":"5","author":[{"given":"Jenine","family":"Wenn","sequence":"first","affiliation":[{"name":"School of Psychology and Speech Pathology, Curtin University, Perth, Western Australia, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Moira","family":"O'Connor","sequence":"additional","affiliation":[{"name":"School of Psychology and Speech Pathology, Curtin University, Perth, Western Australia, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lauren J","family":"Breen","sequence":"additional","affiliation":[{"name":"School of Psychology and Speech Pathology, Curtin University, Perth, Western Australia, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert T","family":"Kane","sequence":"additional","affiliation":[{"name":"School of Psychology and Speech Pathology, Curtin University, Perth, Western Australia, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Clare S","family":"Rees","sequence":"additional","affiliation":[{"name":"School of Psychology and Speech Pathology, Curtin University, Perth, Western Australia, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2015,12,8]]},"reference":[{"key":"2025121410420232000_5.12.e007221.1","doi-asserted-by":"publisher","DOI":"10.1176\/ajp.154.7.904"},{"key":"2025121410420232000_5.12.e007221.2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cpr.2004.07.002"},{"key":"2025121410420232000_5.12.e007221.3","doi-asserted-by":"crossref","unstructured":"Prigerson HG , Vanderwerker LC , Maciejewski PK . 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