This observational study is being conducted by Healing Hope International to collect real-world data on an emerging treatment approach for Long COVID in patients with immunodeficiency. The study investigates the effects of intranasal immunoglobulin (IVIG) therapy in a real-world setting. Participants will be individuals diagnosed with Long COVID who have confirmed immunodeficiency, such as low IgG or IgA levels or specific antibody deficiency. These individuals are receiving care through international clinical programs and will not receive any treatment as part of this study. Instead, Healing Hope will collect health information, clinical outcomes, and laboratory results from participating sites to better understand how intranasal IVIG might help reduce symptoms such as fatigue, brain fog, inflammation, and immune dysregulation. The goal of this study is to contribute new insights into potential treatment options for Long COVID and to support responsible, science-backed care models for patients participating in medical tourism. No experimental drugs are being administered as part of this protocol. All treatment decisions are made independently by each clinical site. Data will be anonymized and used to advance knowledge in the field of immunological recovery and neuroinflammation.
Age range
18 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Change in Fatigue Severity Using the Fatigue Severity Scale (FSS) Using Patient-Reported Outcome Measures (PROMs)
Timeframe: Baseline and 12 Weeks
Change in Cognitive Dysfunction Using the Cognitive Failures Questionnaire (CFQ)
Timeframe: Baseline and 12 Weeks
Change in Breathlessness Using the Visual Analog Scale (VAS)
Timeframe: Baseline and 12 Weeks