Background: Due to an increase in PTSD patients seeking help in the Danish mental health sector and the addition of Complex PTSD to the ICD-11, there is a need to increase efficiency of existing treatments for PTSD. mHealth interventions have been shown to reduce PTSD symptoms. Therefore, the implementation of a mHealth intervention designed for psychiatric PTSD patients as a therapy add-on may improve treatment outcome. No study to date has explored the effects of mHealth interventions for PTSD in the Danish mental health sector, the feasibility and effect of this type of intervention needs testing. Methods: The study is an investigator-initiated randomized controlled feasibility trial investigating the clinical mHealth tool PTSD help combined with care as usual (CAU) compared to CAU for adults with PTSD. Seventy patients will be recruited and receive either the mHealth intervention combined with CAU or CAU alone. The primary feasibility outcome is the proportion of eligible patients that participate in the study until the end assessment. Secondary outcome data consists of the fraction of compliant patients in the experimental group and exploratory data on PTSD help on PTSD symptom severity, level of psychological distress, sleep quality, dissociation symptoms, therapy readiness, quality of life, disability levels, and recovery. Discussion: This study may help increase our knowledge of possible benefits of, as well as potential barriers to, the implementation of mHealth tools in the psychiatric sector. It may also provide a cost-efficient means to increase therapy outcomes and decrease the duration of suffering for PTSD patients in the psychiatric sector. Trial registration: The trial is registered at ClinicalTrials.gov (ID: NCT03862703) https://clinicaltrials.gov/ct2/show/ NCT03862703 on the 27 of February 2019 and has been approved by the Danish Data Protection Agency (journal number: VD-2018-200 ISuite number 6443). Referring to the committee law §2, the National Committee on Health Research Ethics (DNVK) [H-18024180] decided that the study could proceed without approval as the use of PTSD help did not constitute a health science intervention according to Danish health science legislation.

Rumination has been shown to play a part in post-traumatic stress disorder (PTSD), but its relation to the intrusions characteristic of PTSD has mainly been investigated experimentally. This proof-of-concept case study explored the occurrence, personal experiences, and possible relation between rumination and intrusions in two PTSD patients in their daily living using a mixed method approach. A novel wearable self-tracking instrument was employed which provided fine-grained temporal resolution of observation data and could eliminate recall bias. Furthermore, quantitative and qualitative data were collected on participants’ symptoms, rumination and experiences of using the self-tracking instrument. First, without distinguishing between the two phenomena, the participants tracked both for a week. After receiving psychoeducational training for distinguishing between rumination and intrusions, the differentiated phenomena were tracked for a week. Both participants reported being subjectively able to distinguish between rumination and intrusions and made observations with high adherence during the project. Data hinted at a possible temporal relation between the phenomena in line with theories posing rumination as a maladaptive coping strategy as well as an exacerbator of PTSD symptoms. However, relations to mood were inconclusive. Furthermore, by using the self-tracking instrument, participants gained a heightened awareness of the characteristics of rumination and intrusions and contextual cues for occurrence, as well as a greater sense of momentary agency. Results reveal promising prospects in using the wearable self-tracking instrument for further investigation of the relation between rumination and intrusions in the lived lives of PTSD patients, as well as potential for incorporating this method in clinical treatment. Key learning aims (1) Self-tracking with the One Button Tracker is a novel symptom registration method, particularly suited for use in psychotherapeutic treatment and research. (2) Rumination and intrusions appear to the participants as distinct cognitive phenomena and treatment targets in PTSD. (3) Registering rumination and intrusions in real-time could reveal important temporal relations between them and the contexts in which they occur. (4) The data obtained with this self-tracking method can potentially be used as a tool in, and for the further development of psychotherapy for PTSD.

Background Posttraumatic stress disorder (PTSD) is a common disorder that requires more treatment options. Mobile health (mHealth) app interventions are promising for patients with PTSD, as they can provide easily accessible support, strategies, and information. However, knowledge about mHealth interventions is sparse and primarily based on quantitative studies. Objective The aim of this study is to qualitatively explore the experiences of patients with PTSD with regard to using an mHealth app as a stand-alone intervention before commencing psychotherapeutic treatment. Methods We conducted semistructured interviews with 14 participants 6 weeks after they received the app. The participants were all referred to PTSD treatment and were waiting to commence psychotherapeutic treatment. During this waiting time, the participants had no contact with the health staff. Interviews were transcribed and were analyzed using thematic analysis. Results A total of 3 themes were identified—the use of app, being a patient, and the overall evaluation of the app. The use of the app was described with the subtheme of habits, and the theme of being a patient included the subthemes of having negative experiences with the app and being a part of a research project. The use of the app encompassed how psychological factors and technical problems could interfere with the use of the app. The theme of being a patient depicted that the waiting time before starting treatment was long, and a subgroup of patients experienced feeling worse during this time, which they partly attributed to using the app. Several suggestions for change have been described in the overall evaluation of the app. Conclusions The findings in this study revealed that emotional arousal influenced the use of the app and that it was difficult for participants to establish a habit of using the app, thus reflecting the importance of supporting habit formation when implementing an mHealth app in mental health care services. This study makes an important contribution to the field of mHealth research, as it revealed that some participants had negative experiences resulting from using the app, thus reflecting the potential harm of having an mHealth app without the support of a clinician. It is therefore recommended to use a blended care treatment or an approach in which mental health care professionals prescribe an mHealth app for relevant patients to avoid increased suicidal risk.