NCT06248710

Brief Summary

Oxytocin has been proposed as a neuroendocrine mechanism that may mediate the relationship between dog ownership and positive health outcomes and be linked to human-dog interactions and is thought to be a mechanism of interspecies bonding. While the role of oxytocin in human bonding behaviours and social behaviour, in general, is becoming well-established the role of oxytocin in human-animal interaction and Animal-Assisted Interventions (AAI) remains unclear. This research gap calls for more high-quality research investigating this possible neuroendocrine underlying mechanism to advance knowledge about AAI. If oxytocin indeed might be involved in interspecies bonding, intranasally administered oxytocin should not only enhance trust toward a human but also towards a dog.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
176

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Jan 2024

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 22, 2024

Completed
7 days until next milestone

Study Start

First participant enrolled

January 29, 2024

Completed
10 days until next milestone

First Posted

Study publicly available on registry

February 8, 2024

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

November 5, 2024

Status Verified

November 1, 2024

Enrollment Period

11 months

First QC Date

January 22, 2024

Last Update Submit

November 1, 2024

Conditions

Keywords

Depressive SymptomsHuman-Animal InteractionAnimal-Assisted InterventionsTrust

Outcome Measures

Primary Outcomes (1)

  • Trust in the therapist

    The main outcome is trust in the therapist, measured by the Trust and Respect Scale. The current questionnaire contains 8 items, four for trust and four for respect. Each item is measured on a 7-point Likert scale (1 = "strongly disagree" to 7 = "strongly agree"), of which 4 are formulated negatively. High values indicate high trust toward the therapist for the positively framed items, and for the negatively framed items low values mean high trust toward the therapist.

    immediately after the intervention

Secondary Outcomes (9)

  • Trust in the dog

    immediately after the intervention

  • perceived emotional closeness to the dog

    immediately after the intervention

  • perceived stress

    pre-intervention

  • perceived stress

    immediately after the intervention

  • level of difficulty

    immediately after the intervention

  • +4 more secondary outcomes

Study Arms (4)

Condition 1: Oxytocin + dog present

EXPERIMENTAL
Drug: Oxytocin nasal sprayOther: Animal-Assisted Intervention

Condition 2: Oxytocin + no dog present

EXPERIMENTAL
Drug: Oxytocin nasal spray

Condition 3: Placebo + dog present

EXPERIMENTAL
Other: Animal-Assisted InterventionDrug: Placebo

Condition 4: Placebo + no dog present

PLACEBO COMPARATOR
Drug: Placebo

Interventions

Syntocinon nose spray is usually applied in the context of labour and breast feeding. In this study, however, it will be used to induce an oxytocin (OT) release. Participants will apply three sprays in each nostril which will result in a dose of 24 I.U of oxytocin per participant

Condition 1: Oxytocin + dog presentCondition 2: Oxytocin + no dog present

The dogs involved in the study are trained and used to work with different people in animal-assisted interventions. The dog will be familiarized with the room and the material as well as the staff of the study. The dog will be specifically trained for this study. The dog will be involved for a maximum of 3 sessions per day (approx. 20 minutes in total) and 2 days per week.

Condition 1: Oxytocin + dog presentCondition 3: Placebo + dog present

The placebo nose spray contains a saltwater solution and will be applied like the Syntocinon nose spray containing oxytocin.

Condition 3: Placebo + dog presentCondition 4: Placebo + no dog present

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 18 years
  • Signed informed consent

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Basel

Basel, Canton of Basel-City, 4055, Switzerland

RECRUITING

Related Publications (9)

  • Algoe SB, Kurtz LE, Grewen K. Oxytocin and Social Bonds: The Role of Oxytocin in Perceptions of Romantic Partners' Bonding Behavior. Psychol Sci. 2017 Dec;28(12):1763-1772. doi: 10.1177/0956797617716922. Epub 2017 Oct 2.

    PMID: 28968183BACKGROUND
  • Bakermans-Kranenburg MJ, van I Jzendoorn MH. Sniffing around oxytocin: review and meta-analyses of trials in healthy and clinical groups with implications for pharmacotherapy. Transl Psychiatry. 2013 May 21;3(5):e258. doi: 10.1038/tp.2013.34.

    PMID: 23695233BACKGROUND
  • Feldman R, Weller A, Zagoory-Sharon O, Levine A. Evidence for a neuroendocrinological foundation of human affiliation: plasma oxytocin levels across pregnancy and the postpartum period predict mother-infant bonding. Psychol Sci. 2007 Nov;18(11):965-70. doi: 10.1111/j.1467-9280.2007.02010.x.

    PMID: 17958710BACKGROUND
  • Kosfeld M, Heinrichs M, Zak PJ, Fischbacher U, Fehr E. Oxytocin increases trust in humans. Nature. 2005 Jun 2;435(7042):673-6. doi: 10.1038/nature03701.

    PMID: 15931222BACKGROUND
  • Nagasawa M, Mitsui S, En S, Ohtani N, Ohta M, Sakuma Y, Onaka T, Mogi K, Kikusui T. Social evolution. Oxytocin-gaze positive loop and the coevolution of human-dog bonds. Science. 2015 Apr 17;348(6232):333-6. doi: 10.1126/science.1261022. Epub 2015 Apr 16.

    PMID: 25883356BACKGROUND
  • Powell, L., Guastella, A. J., McGreevy, P. D., Bauman, A., Edwards, K. M., & Stamatakis, E. (2018). The physiological function of oxytocin in humans and its acute response to human-dog interactions: A review of the literature. Journal of Veterinary Behavior, 30, 25-32. https://doi.org/10.1016/j.jveb.2018.10.008

    BACKGROUND
  • Crits-Christoph P, Rieger A, Gaines A, Gibbons MBC. Trust and respect in the patient-clinician relationship: preliminary development of a new scale. BMC Psychol. 2019 Dec 30;7(1):91. doi: 10.1186/s40359-019-0347-3.

    PMID: 31888759BACKGROUND
  • Coleman, J. A., Green, B., Garthe, R. C., Worthington Jr, E. L., Barker, S. B., & Ingram, K. M. (2016). The Coleman Dog Attitude Scale (C-DAS): development, refinement, validation, and reliability. Applied Animal Behaviour Science, 176, 77-86.

    BACKGROUND
  • Gloster, A. T., Block, V. J., Klotsche, J., Villanueva, J. E., Rinner, M. T. B., Benoy, C., Walter, M., Karekla, M., & Bader, K. (2021). Psy-Flex: A contextually sensitive measure of psychological flexibility. Journal of Contextual Behavioral Science, 22, 13-23. https://doi.org/10.1016/j.jcbs.2021.09.001

    BACKGROUND

MeSH Terms

Conditions

DepressionHuman-Animal Interaction

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehavior

Central Study Contacts

Karin Hediger, Prof. Dr.

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Prof. Dr. Karin Hediger

Study Record Dates

First Submitted

January 22, 2024

First Posted

February 8, 2024

Study Start

January 29, 2024

Primary Completion

December 31, 2024

Study Completion

December 31, 2024

Last Updated

November 5, 2024

Record last verified: 2024-11

Locations