NCT07356206

Brief Summary

The purpose of this study is to evaluate the effectiveness and medium-term maintenance of a structured dog-assisted therapy (DAT) protocol, "Entre Patas e Afetos" (Between Paws and Affections), in reducing pain, anxiety and depressive symptoms and in improving functional status and quality of life in Portuguese patients with fibromyalgia (FM) followed at ULS Alto Ave, with systematic outcome assessment in the immediate post intervention phase (T2), 6-month follow-up (T3) and 12-month follow-up (T4).

Trial Health

77
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
38mo left

Started Jan 2026

Longer than P75 for not_applicable

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

Study Progress8%
Jan 2026Jun 2029

First Submitted

Initial submission to the registry

January 12, 2026

Completed
9 days until next milestone

First Posted

Study publicly available on registry

January 21, 2026

Completed
1 day until next milestone

Study Start

First participant enrolled

January 22, 2026

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2028

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2029

Last Updated

May 5, 2026

Status Verified

April 1, 2026

Enrollment Period

2.4 years

First QC Date

January 12, 2026

Last Update Submit

April 28, 2026

Conditions

Keywords

FibromyalgiaDog-Assisted TherapyPainAnxietyDepressionPsychoeducation and RelaxationFuctional ImpactCatastrophizingfollow-up evaluationsHospital Anxiety and Depression Scale (HADS)Pain Catastrophizing ScalePortuguese Fibromyalgia Impact Questionnaire (FIQ P)Numerical Rating Scale (NRS)adapted Wong Baker Faces Pain ScalePortuguese Brief Pain Inventory - Short Form

Outcome Measures

Primary Outcomes (2)

  • Pain intensity (maximum and average) and pain interference

    Measured by the Portuguese Brief Pain Inventory - Short Form , at T2 (post session 4), T3 (6 month follow up) and T4 (12 month follow up), to capture both short term change and medium term maintenance at 6 and 12 months after the first month (T2). Self reported pain intensity using a Numeric Rating Scale with faces / adapted Wong Baker Faces Pain Scale, collected at each session to monitor pain fluctuations across the acute and maintenance phases.

    13 months - From 1 month after enrollment to the end of treatment at 12 months after the first month

  • Fibromyalgia impact and functional status

    Measured by the Portuguese Fibromyalgia Impact Questionnaire (FIQ P), at T2, T3 and T4, allowing evaluation of functional changes and their persistence at 6 and 12 months after the first month (T2)

    13 months - From 1 month after enrollment to the end of treatment at 12 months after the first month

Secondary Outcomes (2)

  • Anxiety and depressive symptoms

    13 months - From 1 month after enrollment to the end of treatment at 12 months after the first month

  • Pain catastrophizing

    13 months - From 1 month after enrollment to the end of treatment at 12 months after the first month

Study Arms (2)

Behavioral: Dog Assisted Therapy (DAT - "Between Paws and Affections")

EXPERIMENTAL

Intervention group that will receive a total of 10 group sessions at the Psychiatry Day Hospital of ULS Alto Ave, organized into 4 weekly structured sessions (combining psychoeducation on fibromyalgia and chronic pain, functional training and self care, lifestyle counseling and guided relaxation, all mediated by trained therapy dogs and a professional dog handler), followed by 6 monthly guided relaxation "booster" sessions with the dogs.

Behavioral: Behavioral: Dog Assisted Therapy (DAT - "Between Paws and Affections")

Behavioral: Psychoeducation and Relaxation without Dogs (Control)

ACTIVE COMPARATOR

New active control group that will receive the same 10-session program, with structure, duration, and content identical to the DAT arm (4 weekly structured psychoeducation and functional/self-care sessions plus 6 monthly guided relaxation "booster" sessions), but delivered entirely without dogs.

Behavioral: Behavioral: Psychoeducation and Relaxation without Dogs (Control)

Interventions

Dog Assisted Therapy (DAT - "Between Paws and Affections") - Intervention group that will receive a total of 10 group sessions at the Psychiatry Day Hospital of ULS Alto Ave, organized into 4 weekly structured sessions (combining psychoeducation on fibromyalgia and chronic pain, functional training and self care, lifestyle counseling and guided relaxation, all mediated by trained therapy dogs and a professional dog handler), followed by 6 monthly guided relaxation "booster" sessions with the dogs.

Behavioral: Dog Assisted Therapy (DAT - "Between Paws and Affections")

Control group that will receive the same 10 session program, with structure, duration and content identical to the DAT arm (4 weekly structured psychoeducation and functional/self care sessions plus 6 monthly guided relaxation "booster" sessions), but delivered entirely without dogs.

Behavioral: Psychoeducation and Relaxation without Dogs (Control)

Eligibility Criteria

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

You may qualify if:

  • Age 18 years or older
  • Confirmed diagnosis of fibromyalgia
  • Being followed at ULS Alto Ave by the Multidisciplinary Pain Unit, Internal Medicine (Auto immune diseases), Physical and Rehabilitation Medicine or Neurology
  • Ability to read and write Portuguese and to understand the study procedures
  • Willingness and ability to participate voluntarily in the 10 session program and all scheduled assessments (T1-T4)
  • Provision of written informed consent

You may not qualify if:

  • Allergy to dogs or marked fear of dogs
  • History of aggression towards animals
  • History of oncological disease
  • Concomitant systemic or rheumatologic disease that may confound pain and functional assessment
  • Decompensated psychiatric disorder or severe cognitive impairment that may compromise comprehension of the protocol or adherence to the intervention
  • Refusal to participate or withdrawal of consent at any point

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Unidade Local de Saúde (ULS) Alto Ave

Guimarães, 4835-044, Portugal

RECRUITING

Related Publications (14)

  • Marcus DA, Bernstein CD, Constantin JM, Kunkel FA, Breuer P, Hanlon RB. Impact of animal-assisted therapy for outpatients with fibromyalgia. Pain Med. 2013 Jan;14(1):43-51. doi: 10.1111/j.1526-4637.2012.01522.x. Epub 2012 Nov 21.

    PMID: 23170993BACKGROUND
  • Clark SD, Martin F, McGowan RTS, Smidt JM, Anderson R, Wang L, Turpin T, Langenfeld-McCoy N, Bauer BA, Mohabbat AB. Physiological State of Therapy Dogs during Animal-Assisted Activities in an Outpatient Setting. Animals (Basel). 2020 May 9;10(5):819. doi: 10.3390/ani10050819.

    PMID: 32397366BACKGROUND
  • Kunzi P, Ackert M, Grosse Holtforth M, Hund-Georgiadis M, Hediger K. Effects of animal-assisted psychotherapy incorporating mindfulness and self-compassion in neurorehabilitation: a randomized controlled feasibility trial. Sci Rep. 2022 Jun 28;12(1):10898. doi: 10.1038/s41598-022-14584-1.

    PMID: 35764668BACKGROUND
  • Kang JH, Choi SE, Park DJ, Lee SS. Disentangling Diagnosis and Management of Fibromyalgia. J Rheum Dis. 2022 Jan 1;29(1):4-13. doi: 10.4078/jrd.2022.29.1.4.

    PMID: 37476701BACKGROUND
  • Petersson M, Uvnas-Moberg K, Nilsson A, Gustafson LL, Hydbring-Sandberg E, Handlin L. Oxytocin and Cortisol Levels in Dog Owners and Their Dogs Are Associated with Behavioral Patterns: An Exploratory Study. Front Psychol. 2017 Oct 13;8:1796. doi: 10.3389/fpsyg.2017.01796. eCollection 2017.

    PMID: 29081760BACKGROUND
  • Beetz A, Uvnas-Moberg K, Julius H, Kotrschal K. Psychosocial and psychophysiological effects of human-animal interactions: the possible role of oxytocin. Front Psychol. 2012 Jul 9;3:234. doi: 10.3389/fpsyg.2012.00234. eCollection 2012.

    PMID: 22866043BACKGROUND
  • Rosado Mda L, Pereira JP, da Fonseca JP, Branco JC. [Cultural adaptation and validation of the "Fibromyalgia Impact Questionnaire"--Portuguese version]. Acta Reumatol Port. 2006 Apr-Jun;31(2):157-65. Portuguese.

    PMID: 17058362BACKGROUND
  • Pais-Ribeiro J, Silva I, Ferreira T, Martins A, Meneses R, Baltar M. Validation study of a Portuguese version of the Hospital Anxiety and Depression Scale. Psychol Health Med. 2007 Mar;12(2):225-35; quiz 235-7. doi: 10.1080/13548500500524088. English, Portuguese.

    PMID: 17365902BACKGROUND
  • Pandey RP, Himanshu; Gunjan; Mukherjee R, Chang CM. The Role of Animal-Assisted Therapy in Enhancing Patients' Well-Being: Systematic Study of the Qualitative and Quantitative Evidence. JMIRx Med. 2024 Mar 18;5:e51787. doi: 10.2196/51787.

    PMID: 38606668BACKGROUND
  • Renner F, DeRubeis R, Arntz A, Peeters F, Lobbestael J, Huibers MJH. Exploring mechanisms of change in schema therapy for chronic depression. J Behav Ther Exp Psychiatry. 2018 Mar;58:97-105. doi: 10.1016/j.jbtep.2017.10.002. Epub 2017 Oct 6.

    PMID: 29035800BACKGROUND
  • Malogiannis IA, Arntz A, Spyropoulou A, Tsartsara E, Aggeli A, Karveli S, Vlavianou M, Pehlivanidis A, Papadimitriou GN, Zervas I. Schema therapy for patients with chronic depression: a single case series study. J Behav Ther Exp Psychiatry. 2014 Sep;45(3):319-29. doi: 10.1016/j.jbtep.2014.02.003. Epub 2014 Feb 24.

    PMID: 24650608BACKGROUND
  • Clark S, Martin F, McGowan RTS, Smidt J, Anderson R, Wang L, Turpin T, Langenfeld-McCoy N, Bauer B, Mohabbat AB. The Impact of a 20-Minute Animal-Assisted Activity Session on the Physiological and Emotional States in Patients With Fibromyalgia. Mayo Clin Proc. 2020 Nov;95(11):2442-2461. doi: 10.1016/j.mayocp.2020.04.037. Epub 2020 Aug 17.

    PMID: 32819740BACKGROUND
  • Arnold LM, Bennett RM, Crofford LJ, Dean LE, Clauw DJ, Goldenberg DL, Fitzcharles MA, Paiva ES, Staud R, Sarzi-Puttini P, Buskila D, Macfarlane GJ. AAPT Diagnostic Criteria for Fibromyalgia. J Pain. 2019 Jun;20(6):611-628. doi: 10.1016/j.jpain.2018.10.008. Epub 2018 Nov 16.

    PMID: 30453109BACKGROUND
  • Pendry P, Vandagriff JL. Animal Visitation Program (AVP) Reduces Cortisol Levels of University Students: A Randomized Controlled Trial. AERA Open. 2019 Apr-Jun;5(2):1-12. doi:10.1177/2332858419852592.

    BACKGROUND

Related Links

MeSH Terms

Conditions

FibromyalgiaPainAnxiety DisordersDepression

Condition Hierarchy (Ancestors)

Muscular DiseasesMusculoskeletal DiseasesRheumatic DiseasesNeuromuscular DiseasesNervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsMental DisordersBehavioral SymptomsBehavior

Study Officials

  • Armando Almeida, Associate Professor

    School of Medicine, University of Minho

    STUDY CHAIR
  • Filipa Martins-Alves, Psychiatric Hospital Assistant

    Psychiatry Department, Unidade Local de Saúde (ULS) Alto Ave

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Armando Almeida, Associate Professor

CONTACT

Filipa Martins-Alves, Psychiatric Hospital Assistant

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

January 12, 2026

First Posted

January 21, 2026

Study Start

January 22, 2026

Primary Completion (Estimated)

June 30, 2028

Study Completion (Estimated)

June 30, 2029

Last Updated

May 5, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Data protection in Portugal is very restricted concerning the sharing of patients' personal data.

Locations