• The Accelerated Approval (AA) pathway was implemented to help fight AIDs/HIV and has largely been considered a success in addressing areas of high unmet medical needs. However, there is growing sentiment from some payers, academics, and state and federal policymakers that the pathway needs to be significantly altered or restrictions applied to drugs approved through the accelerated approval pathway

• To test the impact of these changes to the pathway, Vital Transformation calculated the Net Present Value (NPV) of 93 primary accelerated approval therapies from 2001-2021 (drugs with at least one FDA-approved indication):
- The cost estimates were derived from two peer review publications by Jayasundara and DiMasi, scaled to the actual size of the FDA approved confirmatory trial in our cohort,
- An economic model was built testing the impacts of 2, 3, 4, and 5-year delays in the granting of a full FDA marketing approval to determine the NPV of any accelerated approval therapy.

• For most of the orphan conditions currently lacking treatment in the US, each condition impacts a maximum of 330 people - an incidence rate less than 1/1,000,000. Substantial changes to the accelerated approval pathway will likely render the potential development of these therapies to treat many rare diseases economically untenable.

• The Centers for Medicare and Medicaid Services (CMS) has introduced a draft national coverage determination (NCD) for amyloid-targeting Alzheimer's disease (AD) therapies which brings new uncertainties into investment decisions / ROI calculations.
• This analysis measures the potential impact of this NCD - using assumptions based on the current draft language and historical data about AD R&D trials and investment, we assume that the NCD will add 3 or more years to the time it takes for an AD asset to see any return on investment.
• Of the programs currently in development – IF the proposed NCD was in place at the time of program initiation, 93% of investments would have had negative ROI and therefore would not have likely been made.
• Furthermore, the results of our research find that many existing clinical development programs would likely be halted - this is not only true for amyloid-targeting therapies, but all AD treatments, as neurological disorders often use the same endpoint threshold when applying for CMS program participation.
• The NCD, if implemented, reduces our estimated 39 treatments with a net positive ROI to 3, with an assumed three-year delay; with a four-year delay, we find only one therapy with a positive ROI in our model.
• Finally, the NCD introduces new and material risks to the ROI calculations for potentially all products approved under the accelerated approval pathway, which is vital to supporting the development of treatments targeting high unmet medical needs and significant scientific challenges.

22 December 2021



Early in the Covid-19 pandemic, the case fatality rate was frightening. This metric represents the proportion of all known people infected with a disease who die from it. The World Health Organization initially put it as high as nearly 16% in Algeria.

Several colleagues and I at Vital Transformation began closely following the data on Covid-19 early in the pandemic. We wondered if case fatality rates might be skewed by lack of testing. We collected data on various indictors that early on were thought to be influencing the spread of Covid-19.