CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 45 enrolled
Drug / intervention
Safe and Sound Protocol +1 moredevice
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04999852
NCT04999852N/ACompleted

The Effects of the Safe and Sound Protocol on PTSD Symptoms and Anxiety

Indiana University·interventional·Posted Aug 11, 2021·Updated Sep 5, 2025

In Brief

A clinical study evaluating Safe and Sound Protocol and Psychotherapy for Post Traumatic Stress Disorder and Anxiety. Completed, enrolled 45 participants across 1 site.

Detailed Summary

The Safe and Sound Protocol (SSP) is a passive acoustic intervention that is designed as a "neural exercise" to promote efficient regulation of autonomic state. Prior research has shown that the SSP can improve autonomic function, auditory hypersensitivities, and emotion regulation in individuals with Autism Spectrum Disorders. This observational pilot study is being conducted to establish methods for an upcoming randomized controlled trial to test the utility of the SSP for trauma treatment. This study will enroll clients at the Spencer Psychology clinic who are set to take part in SSP under the supervision of their therapist. Because the therapists have participated in the design of the protocol and will participate in data collection and analysis, SSP will be considered a research procedure. In addition to taking part in SSP, subjects complete a set of questionnaires and have their pulse measured before starting the SSP intervention, after having completed 2/5 hours of the SSP, one week after completing all 5 hours of the SSP, and one month after completing the SSP intervention. The investigators will also pull relevant information from Spencer Psychology's medical records to document diagnosis, track client progress during study, and augment self-reported demographics. Clients who are receiving psychotherapy but not the SSP will be recruited as a comparison group.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
CollaboratorsSpencer Psychology

Timeline

N/ACompletedFinished
20222023202420252026
First PostedAug 11, 2021
Enrollment StartJul 12, 2021
Primary CompletionDec 7, 2023
TodayJul 2, 2026
Enrollment to primary: 2.4 yearsPosted 4.9 years ago

Interventions

Safe and Sound Protocoldevice

SSP is a non-invasive acoustic vagus nerve stimulator consisting of 5 hours of filtered and processed music designed to promote efficient regulation of autonomic state, and available through an app. The SSP is delivered via a mobile app and may fall under the heading of medical devices under the category of software functions/mobile medical applications.

Psychotherapybehavioral

All participants, regardless of study arm, will be recruited from the pool of Spencer Psychology clients who are actively recieving psychotherapy. Participants will continue to recieve psychotherapy during the course of the study.