Primary Risk Drivers
Below is a snapshot of domains that materially influence the MARA Rating.
Clinical effectiveness
The evidence from the Phase 2b trial shows a statistically significant reduction in symptomatic influenza with CD388 compared to placebo, indicating a clear clinical advantage. The Phase 2a trial also demonstrated a significant reduction in viral load and incidence of influenza infection, although symptomatic outcomes were not statistically significant. Overall, the data suggest a strong therapeutic impact, but the absence of Phase 3 evidence limits the rating to A+.
Cost effectiveness
No cost-effectiveness analyses or economic evaluations have been conducted for CD388. The lack of published data on its economic impact means that its value proposition remains undetermined, which is critical for HTA assessments.
Quality of life
There is no data available regarding health-related quality of life measures for CD388. The absence of any reported patient-reported outcomes or HRQoL data in the trials indicates a critical gap in understanding the treatment’s impact on patients’ overall well-being.
Supporting Domains
Safety and Adverse Effects
CD388 has demonstrated a favorable safety profile across Phase 1 and Phase 2 trials, with no serious adverse events reported and mild treatment-emergent adverse events similar to placebo. This indicates very good tolerability, supporting a strong safety rating.
Comparator Selection
All trials used placebo as the comparator, which limits the ability to assess CD388’s effectiveness against existing prophylactic options like vaccines or antiviral treatments. The absence of active comparators means that the evidence lacks direct relevance to current standard care.
Patient Population and Subgroups
The trials primarily enrolled healthy adults aged 18-64, excluding high-risk populations such as the elderly and immunocompromised. While the Phase 3 trial aims to address this gap, the current evidence does not adequately represent the intended patient population.
Care Pathway Integration
CD388 is designed for easy integration into existing healthcare pathways as a single seasonal injection, which could simplify prophylaxis for high-risk patients. Its mechanism allows it to be used alongside or instead of vaccines, indicating a manageable integration into current practices.
Resource Use and Cost Implications
There is no data available on the resource implications or budget impact of CD388. The lack of information regarding its cost and potential healthcare utilization effects means that its economic viability remains uncertain.
Evidence Quality and Robustness
The evidence is derived from well-designed Phase 2 trials with robust methodologies, including randomization and blinding. However, the reliance on company-sponsored studies and the absence of peer-reviewed publications for the Phase 2b trial introduce some uncertainty regarding the robustness of the evidence.
Uncertainty, Sensitivity, and Broader Impacts
While CD388 shows promise, there are significant uncertainties regarding its long-term efficacy, potential resistance, and broader public health impacts. The lack of data on its effectiveness in high-risk populations and the absence of economic models contribute to a high level of uncertainty.
