Lessening the Impact of Fatigue in Inflammatory Rheumatic Diseases

Eligible participants will be identified from patients with inflammatory rheumatic diseases attending major secondary care rheumatology services in the United Kingdom. Potential participants will be identified using local databases/clinic lists and will then be mailed a pre-study invite, which will include questions about fatigue. Potentially eligible participants will be invited to attend a baseline assessment.

Once it has been confirmed at the baseline assessement that they are eligible to take part in the study, the consented participant will be allocated to one of three treatment groups. During the course of the trial, the participant will be invited to visit the study centre three more times for assessments.

At each of the four assessment visits (baseline, and approximately 2, 7 and 13 months after) they will be asked:

• To complete questionnaires which collect information about various outcomes which we think will improve in response to the therapies under evaluation as well as factors which will help us understand how the treatments may work, and factors which may help identify those patients better suited to one therapy over another
• To provide a blood sample for research
• To take part in an aerobic fitness test
• To wear an activity monitor for the next 7 days which will be fitted at each visit
• To answer three short questions about engagement with intervention delivered by telephone from trial office at the time of session 4 and 8 (CBA and PEP intervention only). Similarly, the allocated therapists will be asked to give their view of the participants' engagement with the intervention.

All participants will be asked to keep a diary on any other treatments they are using in addition to the treatments they may receive during the study and how costly these other treatments are. The diary period will last for the first 6 months and then for 2 weeks after the third visit and 2 weeks before the last visit.

After they finished the study, the investigators may approach a subgroup of participants who received either the talking therapy or the personalised exercise programme again and ask for an interview to enable more detailed feedback on if they found the intervention helpful and how it has changed their daily life.

Inclusion criteria

• be ≥ 18 years at the time of consent
• have been diagnosed with rheumatoid arthritis (RA), systemic lupus erythematous (SLE), axial spondyloarthritis (AxSpA) or psoriatic arthritis (PSA) by a rheumatologist
• report fatigue to be a persistent problem
• have access to a telephone landline or mobile telephone and/or internet based audio/video calls
• give permission for researchers to access their hospital medical notes
• currently be under the care of a secondary care physician
• have stable disease as evidenced by no change in immunomodulatory therapy within the last three months based on the hospital medical record

Exclusion criteria

• there are significant abnormalities of thyroid function (TSH levels) on the most recent blood test done within the last three months
• there is evidence of severe anaemia (haemoglobin levels) on the most recent blood test done within the last three months
• there is evidence of severe renal dysfunction (eGFR) on the most recent blood test done within the last three months
• they have a medical condition which would make the proposed interventions unsuitable, e.g. significant heart disease
• they are pregnant
• they are unable to understand English sufficiently to take part in the intervention
• they are unable to provide written informed consent
• they are not willing to be randomised
• they are currently participating in an interventional clinical trial