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First received: January 03, 2023

Clinical Trial: A Vaccine Booster (GEO-CM04S1) for the Prevention of COVID-19 in Patients With Chronic Lymphocytic Leukemia

Study Status: Completed

Recruit Status: RECRUITING

Condition: Chronic Lymphocytic Leukemia

Study Type: INTERVENTIONAL


Official Title: Randomized Observer-Blinded Phase 2 Trial of COVID-19 Booster With GEO-CM04S1 or mRNA Vaccine in Patients With Chronic Lymphocytic Leukemia

Brief Summary: This phase II trial compares the effect of the GEO-CM04S1 vaccine with the current standard of care vaccine in preventing COVID-19 infections in patients with chronic lymphocytic leukemia (CLL).The GEO-CM04S1 vaccine uses a modified vaccinia virus (MVA) backbone that may be more effective at boosting COVID-19 immunity in patients with poor immune responses.MVA strongly induces T cell expansion (infection fighting blood cells) even in the background of a suppressed immune system, which is the case in the targeted…

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