Primary Risk Drivers
Below is a snapshot of domains that materially influence the MARA Rating.
Clinical effectiveness
The SPARTAN trial demonstrated that apalutamide plus ADT significantly increases metastases-free survival (40.5 months vs. 15.7 months for placebo) and overall survival (73.9 months vs. 59.9 months for placebo). These results indicate a clear clinical advantage over standard care, supported by robust Phase 3 evidence.
Cost effectiveness
The cost-effectiveness estimates for apalutamide are within acceptable thresholds for Healthcare resources, with the ICER being below the middle of the range considered cost-effective. The economic model appropriately captures treatment costs and outcomes.
Quality of life
The trial reported improvements in health-related quality of life as measured by EQ-5D, with statistically significant differences observed at various cycles. While the improvements are positive, they are moderate and based on exploratory endpoints.
Supporting Domains
Safety and Adverse Effects
Apalutamide has a very good safety profile, with manageable adverse effects such as rash and hypothyroidism. The evidence suggests that these adverse effects do not significantly undermine the treatment’s overall value.
Comparator Selection
The SPARTAN trial compared apalutamide plus ADT against placebo plus ADT, which is an appropriate comparator for assessing the treatment’s effectiveness in the specified patient population.
Patient Population and Subgroups
The trial population is broadly representative of the intended patient population with hormone-relapsed non-metastatic prostate cancer, and the trial included a sufficient sample size to support generalizability.
Care Pathway Integration
Apalutamide can be integrated into existing treatment pathways with minor adjustments, as it is a second-generation androgen receptor inhibitor that fits within the current treatment landscape for prostate cancer.
Resource Use and Cost Implications
The budget impact of apalutamide is manageable, and the treatment is expected to provide significant clinical benefits relative to its costs, aligning with Healthcare planning.
Evidence Quality and Robustness
The evidence from the SPARTAN trial is robust, being a Phase 3 RCT with a large sample size. However, there are some uncertainties regarding the extrapolation of long-term outcomes.
Uncertainty, Sensitivity, and Broader Impacts
While there are some uncertainties regarding the treatment’s long-term effectiveness and the impact of treatment effect waning, the overall context supports its use given the unmet need in this patient population.
