09/05/2025
Support Your Patients by Referring to the INCAS Trial
A Feasibility Study of Interferon-Gamma as Adjunctive Therapy in Chronic Pulmonary Aspergillosis (CPA)
Led by the National Aspergillosis Centre
Chronic pulmonary aspergillosis (CPA) remains a difficult condition to manage, particularly in patients with underlying lung disease such as COPD, previously treated tuberculosis, or bronchiectasis. Long-term antifungal therapy is often required, yet treatment failure, intolerance, and relapse remain common. Current oral antifungal options are limited to a single drug class, often with significant side effects and limited long-term efficacy.
The INCAS trial is a randomised feasibility study evaluating whether interferon-gamma (IFN-Ξ³), a well-established immune modulator used in other conditions, can improve outcomes in CPA when added to standard antifungal therapy.
Why Refer Your CPA Patients?
Promising early data (PubMed ID: 32229542) from our previous pilot study suggests that IFN-Ξ³ may reduce disease progression, flare-ups, and hospitalisation rates in patients with persistent CPA.
Interferon-gamma is already in use within the NHS and has been shown to be safe and well tolerated in the CPA population to date.
This trial addresses a critical gap: many patients fail antifungal monotherapy, yet immune dysfunction may be under-recognised as a contributing factor.
Participants receive comprehensive follow-up and care from the multidisciplinary team at the National Aspergillosis Centre.
Who Is Eligible?
Adults with proven CPA who are about to start a new course of antifungal therapy
Able to attend 12 weeks of follow-up
No recent use of systemic immunomodulators
No known hypersensitivity to IFN-Ξ³
Trial Design Highlights
Randomised 1:1 to standard antifungal therapy with or without subcutaneous interferon-gamma
IFN-Ξ³ administered 3x/week for 12 weeks
Primary objectives: tolerability, feasibility, and preliminary efficacy (radiological progression on CT, quality of life scores)
Results will inform the design of a larger definitive trial
Why This Matters
CPA is a progressive disease with an estimated 5-year mortality of up to 40%. Most patients face lifelong treatment with no guarantee of symptom control. This trial could open the door to an entirely new treatment strategy, grounded in host immune modulation.
Referring your eligible patients to INCAS allows them to access cutting-edge care, contribute to high-impact research, and potentially benefit from an intervention that could change the course of their illness.
Refer or Learn More
π© Contact the National Aspergillosis Centre
π Based at Wythenshawe Hospital, Manchester
π Full details: https://bit.ly/443PQGm