Exploring how dog presence and oxytocin affect trust towards therapists

Effects of Intranasal Oxytocin on Trust Towards Therapists and Dogs: A Randomized Controlled Trial in Healthy Adults

PHASE2; PHASE3 · University of Basel · NCT06248710

This study is testing whether having a dog present during therapy and using an oxytocin nasal spray can help people with depression feel more trust towards their therapists.

Quick facts

PhasePHASE2; PHASE3
Study typeInterventional
Enrollment176 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Basel (other)
Locations1 site (Basel, Canton of Basel-City)
Trial IDNCT06248710 on ClinicalTrials.gov

What this trial studies

This study investigates the role of oxytocin in enhancing trust towards therapists through the presence of dogs during therapy sessions. Participants will receive either an oxytocin nasal spray, engage in an Animal-Assisted Intervention, or receive a placebo. The research aims to clarify the neuroendocrine mechanisms that may facilitate human-animal bonding and improve therapeutic outcomes for individuals with depressive symptoms. By examining these interactions, the study seeks to advance the understanding of animal-assisted interventions in mental health care.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older who are experiencing depressive symptoms and can provide informed consent.

Not a fit: Patients who are pregnant, have a fear of dogs, or have certain chronic diseases or ongoing psychological treatments may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve therapeutic relationships and outcomes for patients with depressive symptoms through enhanced trust facilitated by oxytocin and dog presence.

How similar studies have performed: While the role of oxytocin in human bonding is well-established, the specific application of oxytocin in enhancing trust through human-animal interactions is still being explored, making this study a novel investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18 years
* Signed informed consent

Exclusion Criteria:

* Pregnancy
* Being scared of dogs or dog hair allergy by self-report
* Any acute or chronic disease (e.g., chronic pain, hypertension, heart disease, renal disease, liver disease, diabetes, respiratory disease, skin pathologies etc.)
* Current medications (psychoactive medication, narcotics, intake of analgesics) or being currently in psychological or psychiatric treatment
* Drug consumption (THC, cocaine, heroin, etc.) within the past 24h before study appointment
* Ongoing psychotherapy treatment
* Sexual Intercourse within the past 24h before study appointment
* Current disease involving respiratory system (e.g., influence, asthma etc.)
* Insufficient German language skills to understand the instructions

Where this trial is running

Basel, Canton of Basel-City

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Depressive Symptoms, Human-Animal Interaction, Animal-Assisted Interventions, Trust

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.