Fatigue in Long COVID
FALCON
1 other identifier
interventional
100
0 countries
N/A
Brief Summary
Long COVID affects about 6 in 100 people after a COVID-19 infection. It can cause ongoing problems like ongoing tiredness, muscle pain, and "brain fog." We know very little about which treatments might be helpful for long COVID. The goal of this trial is to compare two treatments for people with long COVID to try to manage their symptoms. The main question is to assess whether the Lightning Process is effective for people living with long COVID compared to activity pacing. Each person will be placed into one of the two groups randomly (by chance, like flipping a coin). Activity pacing helps people balance rest and daily activities. The Lightning Process teaches ways to change thought patterns and body responses to symptoms. We will include 100 adults with long COVID. Everything will be done online, including filling out surveys about health and daily life. The goal is to find out which approach helps people feel better and improve their daily activities.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Nov 2026
Typical duration for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 25, 2026
CompletedFirst Posted
Study publicly available on registry
July 13, 2026
CompletedStudy Start
First participant enrolled
November 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2028
Study Completion
Last participant's last visit for all outcomes
December 1, 2028
July 13, 2026
July 1, 2026
2.1 years
June 25, 2026
July 7, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Fatigue (Checklist Individual Strength-Fatigue)
The primary outcome will be the mean change in fatigue scores between Lightning Process and activity pacing group at 12 months post randomization. This will be assessed on the fatigue domain of the 8-item Checklist Individual Strength (CIS-fatigue) at 12 months follow-up. The CIS-fatigue domain consists of 8 items with a total score ranging from 8 to 56, with higher scores indicating more severe fatigue.
12 months
Secondary Outcomes (10)
Respiratory function (Dyspnea-12)
6 months, 9 months, and 12 months
Post Exertional Malaise (De Paul Symptom Questionnaire)
Baseline, 6 months, 9 months, and 12 months
Daily Pain (Brief Pain Inventory Short Form)
6 months, 9 months, and 12 months
Fatigue (Checklist Individual Strength-Fatigue)
6 months and 9 months
Physical function (SF-12)
Baseline, 6 months, 9 months, and 12 months
- +5 more secondary outcomes
Study Arms (2)
Lightning Process
EXPERIMENTALLightning Process is a mind body intervention that focusses on identifying and interrupting negative thoughts that may affect fatigue.
Activity pacing
ACTIVE COMPARATORActivity pacing is a self-management strategy that balances activity and rest to manage fatigue, allowing individuals to maintain consistent energy levels throughout the day.
Interventions
LP is a mind body intervention which is delivered over 3 consecutive days to individuals or in groups via video technology. The sessions are approximately 4 hours long. Experienced LP practitioners will deliver the LP intervention remotely and individually. The intervention is comprised of a preparation phase, core sessions, and follow-up. Preparation consists of an audio home-study module (about 4 hours total) and about 1 hour of preparatory coaching by telephone or videoconference in the days to weeks before delivery of the LP intervention to orient participants to the approach and address any questions.
Activity Pacing, a self-management strategy that balances activity and rest to manage fatigue, allowing individuals to maintain consistent energy levels throughout the day. The aim of activity pacing is to avoid symptom exacerbations whilst achieving as much as possible with limited energy. Pacing focusses on developing awareness not only of the symptoms but also more subtle indicators that herald a future exacerbation of symptoms (listening to your body) and becoming aware of effect of activity or lack of rest on disability. Senior occupational therapy students will deliver activity pacing remotely and individually by videoconference.
Eligibility Criteria
You may qualify if:
- Adults aged 18 to 65 years
- Meeting the WHO clinical case definition for long COVID and
- Self-reported experiencing long COVID symptoms such as fatigue, muscle pain, and brain fog.
- Reporting a minimum score of ≥35 on the Checklist Individual Strength CIS-fatigue domain.
- Able to speak and read English
- Scoring higher in contemplation, action or maintenance scores than the precontemplation phase on the readiness to change questionnaire
- Provides consent for study participation.
- Consistent access to an internet-connected device (e.g., smartphone, tablet, laptop) that can facilitate access to the study interventions.
You may not qualify if:
- Long COVID participants whose presentation is primarily restricted to anosmia.
- Participants with Post-Intensive Care Syndrome (PICS) or serious organic sequelae of COVID-19, such as structural lung injury attributable to mechanical ventilation or other organ damage requiring ongoing specialist management.
- Participants who will not be able to attend intervention sessions or follow up visits due to anticipated significant life changes or relocation.
- Unable to provide informed consent (e.g. cognitive disability, language barrier)
- Co-morbidities that likely to impair function for as long or longer than long COVID
- Current participation in psychotherapy, structured physical rehabilitation (e.g., physiotherapy or occupational therapy), or another trial that does not permit co-enrollment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Masking Details
- Due to the nature of the interventions under study, the trial is necessarily open-label. Blinding of participants, LP instructors and occupational therapists is not possible. The study team members responsible for data analysis and interpretation will remain blinded to treatment allocation until completion of the primary analyses and interpretation of results.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
June 25, 2026
First Posted
July 13, 2026
Study Start (Estimated)
November 1, 2026
Primary Completion (Estimated)
December 1, 2028
Study Completion (Estimated)
December 1, 2028
Last Updated
July 13, 2026
Record last verified: 2026-07
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
- Time Frame
- The study protocol will be publicly available upon study commencement.
- Access Criteria
- Anonymized data will be shared upon reasonable request from other researchers for use in specific research projects on long COVID when the main analyses are completed and published.
The study protocol will be published and publicly available. We will share the de-identified data with investigators who have ethics approval for the specific secondary analysis and sign a data sharing agreement. Due to privacy concerns, the complete data files will not be shared online.