Efficacy of NAT-FM Treatment for Fibromyalgia

Efficacy of a Multicomponent Intervention for Fibromyalgia Based on Physical Activity, Psychological Support, and Nature Exposure (NAT-FM)

The main objective of this study is to analyse the efficacy of the NAT-FM multicomponent treatment program as coadjuvant of treatment-as-usual (TAU) compared to TAU alone.

In this Randomized Controlled Trial (RCT), in addition to evaluating the clinical effects of NAT-FM treatment in the short- and long-term, the research team will seek to identify relevant moderators and mediators of clinical change.

• This is a two-arm RCT focused on the safety and potential efficacy of the multicomponent program NAT-FM as coadjuvant of treatment-as-usual (TAU) vs. TAU alone.
• NAT-FM combines Classical Structural Assessment (CSA) and Ecological Momentary Assessment (EMA) to obtain more reliable information about the dynamics of the variables to be evaluated, to record the affective and cognitive impact of each activity, and to explore its potential delivery in real-world clinical practice.
• The main hypothesis is that improvement on functional impairment of patients with fibromyalgia can be achieved by the direct intervention on mechanisms such as self-efficacy and pain catastrophizing.

Inclusion Criteria:

• Adults from 18 to 75 years-old.
• 1990 American College of Rheumatology (ACR) classification criteria + the 2011 modified ACR diagnostic criteria for fibromyalgia
• Able to understand Spanish and accept to participate in the study.

Exclusion Criteria:

• Participating in concurrent or past RCTs (previous year).
• Comorbidity with severe mental disorders (i.e. psychosis) or neurodegenerative diseases (i.e. Alzheimer) that that would limit the ability of the patient to participate in the RCT.