Introduction: Among older adults, lower respiratory tract infection (LRTI) caused by respiratory syncytial virus (RSV) is common. We evaluated the cost-effectiveness of bivalent RSV prefusion F protein-based vaccine (RSVpreF) for prevention of RSV-LRTI among older adults in Germany.
Research design and methods: A static cohort model was developed to estimate lifetime health and economic outcomes of RSV-LRTI among adults aged 60-99 years in Germany, with (vs. without) use of RSVpreF. Vaccine uptake ranged from 27% to 54%. Vaccine effectiveness was derived from trial data and was assumed to last over 3 years, with some waning, following vaccination. Base case analyses were conducted from the societal perspective (costs/benefits discounted 3% annually); sensitivity analyses also were conducted.
Results: Among adults aged 60-99 years (N = 25.3 M), RSVpreF prevented 117,360 cases of hospitalized RSV-LRTI, 100,433 cases of ambulatory RSV-LRTI, and 9,298 RSV-LRTI-related deaths over a lifetime horizon. With total overall costs higher by 1.8 € billion and 49,576 quality-adjusted life-years (QALYs) gained, cost-effectiveness of RSVpreF was 36,064 €/QALY. In probabilistic sensitivity analyses, the mean cost-effectiveness ratio was 36,518 €/QALY; 925 of 1,000 replications yielded ratios <50,000 €/QALY.
Conclusions: RSVpreF has the potential to greatly reduce the public health and economic burden of RSV among older adults in Germany.
Keywords: RSVpreF; Respiratory syncytial virus; bivalent respiratory syncytial virus prefusion F vaccine; lower respiratory tract disease; lower respiratory tract infection; older adult; prevention; vaccine.