Usage of Spirometry in Managing IgG Therapy in CVID With Airway Disease (NCT05193552)
A Prospective Study of the Utility of Spirometry to Identify and Manage Immunoglobulin Replacement Dosage in Primary Antibody Deficiency in Patients With Potentially Reversible Airway Disease
🩺 Plain-English Summary (8th-Grade Level)
Although there is evidence in the literature that gammaglobulin replacement therapy can lead to a reduction in the prevalence of pulmonary infection and improved lung function, there is no published study to guide immunologists regarding the use of spirometry in titrating IG therapy to assist in the management of immunodeficiency patients with regards to gammaglobulin replacement therapy. The investigators propose to study the use of spirometry to identify patients that could potentially benefit from an increase in IGRT. The investigators will identify 22 common variable immune deficiency (CVID) study subjects on stable IGRT replacement therapy equivalent to 0.40 to 0.60 gm/kg per 4 weeks who have evidence of mild to moderate obstruction as assessed by an FEF25-75% between 50% and 80% of predicted. Patients who are on Hizentra will be preferentially recruited. Of these 22, 11 will be identified at random and treated for 6 months at their current dose (control population). The remaining 11 study subjects (treatment group) will have their level of IGRT increased by the equivalent of 0.05 gm/kg in dose per 4 weeks, adjusted for bioavailability as per manufacturer's instructions. On average, rounded up to the nearest gram, this will typically increase their dose of Hizentra by 2 gm per week.
Who can join: Review the eligibility criteria below.
Location: Community Health 20 — Birmingham, Alabama
Age range: 21 Years
🧪 Interventions in This Study
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- Community Health 20 — Birmingham, Alabama
📞 Contact the Study Coordinator
Phone: (205) 331-9159
Email: lcpowell@uabmc.edu
Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
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💡 How to Participate
- Check the checklist above to see if you may qualify.
- Contact the study coordinator using the phone/email above.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.