{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T13:27:01Z","timestamp":1785418021415,"version":"3.56.0"},"reference-count":48,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,9,26]],"date-time":"2025-09-26T00:00:00Z","timestamp":1758844800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,9,26]],"date-time":"2025-09-26T00:00:00Z","timestamp":1758844800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100011849","name":"Bob Woodruff Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100011849","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Traumatic Stress"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Exposure\u2010based therapies are widely accepted as the gold\u2010standard intervention for both obsessive compulsive disorder (OCD) and posttraumatic stress disorder (PTSD). Despite their co\u2010occurrence, little research has explored exposure\u2010based treatment in individuals who experience both OCD and PTSD. At an academic medical center mental health program, four different treatment approaches combining exposure and response prevention (ERP) and prolonged exposure (PE) therapies were piloted for veterans with co\u2010occurring OCD and PTSD. We present each approach with a brief case study. Two sequential models are discussed: massed PE followed by spaced ERP (Model 1) and ERP \u201cprestart\u201d spaced sessions followed by 1\u2010week massed ERP and then 1\u2010week massed PE (Model 2). Two integrated models are presented: ERP prestart spaced sessions, followed by massed PE with ERP elements integrated (Model 3) and massed ERP with PE integrated (Model 4). The results demonstrate reductions in OCD and PTSD symptom severity for the sequenced treatment, starting with ERP of Model 2, as well as the integrated approaches of Models 3 and 4, which emphasized OCD\u2010related psychoeducation and response prevention prior to beginning imaginal exposure for PTSD. These models showed reliable change (RC) for both OCD (RC = 2.35\u20134.06) and PTSD (RC: 4.46\u20137.39). Impacts of these variations in exposure sequencing and spacing are discussed. We provide recommendations for next steps, including systematic research in rigorous and larger\u2010scale studies of exposure\u2010based treatments for co\u2010occurring OCD and PTSD.<\/jats:p>","DOI":"10.1002\/jts.70019","type":"journal-article","created":{"date-parts":[[2025,9,27]],"date-time":"2025-09-27T05:18:41Z","timestamp":1758950321000},"page":"75-85","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Exposure\u2010based treatment for co\u2010occurring posttraumatic stress disorder and obsessive compulsive disorder in veterans: The feasibility of massed models"],"prefix":"10.1002","volume":"39","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-7542-4708","authenticated-orcid":false,"given":"Stephanie M.","family":"Haft","sequence":"first","affiliation":[{"name":"Department of Psychiatry and Behavioral Sciences Emory University School of Medicine Emory University  Atlanta Georgia USA"},{"name":"Joseph Maxwell Cleland Atlanta VA Medical Center  Decatur Georgia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9686-4011","authenticated-orcid":false,"given":"Sheila A. M.","family":"Rauch","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Behavioral Sciences Emory University School of Medicine Emory University  Atlanta Georgia USA"},{"name":"Joseph Maxwell Cleland Atlanta VA Medical Center  Decatur Georgia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barbara O.","family":"Rothbaum","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Behavioral Sciences Emory University School of Medicine Emory University  Atlanta Georgia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew M.","family":"Sherrill","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Behavioral Sciences Emory University School of Medicine Emory University  Atlanta Georgia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,9,26]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1177\/070674370605100702"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1037\/0022\u2010006X.71.2.394"},{"key":"e_1_2_9_4_1","doi-asserted-by":"crossref","unstructured":"American Psychiatric Association. 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