The inflection points of the drug development process
| Phase |
Discovery |
Preclinical |
Phase1 |
Phase 1b/2a |
Phase 2b |
Phase 3 |
FDA Review |
Marketed Drug |
| Typical Cost ($mm) |
$5 |
$5-10 |
$5-10 |
$10-15 |
$15-25 |
$40-100 |
$5 |
$100s |
| Sources of Capital |
Seed Venture |
Venture Seed |
Venture Seed |
Venture Growth |
Venture Growth Public |
Venture Growth Venture |
Public Growth |
Public |
The capital required for each stage of development varies, escalating significantly as a drug
enters large clinical trials in the later stages of development. As a result of this growing
demand for capital, different investor populations are generally involved in funding the very
early versus very late stages of development.

The percentage of the company owned by founders declines significantly over time, despite significant
increases in value with each successive round of financing. This effect is typically offset
by the granting of stock options to founders and management in order to maintain their ownership
positions at desired levels. (Series valuations based on Recombinant Capital estimates.1)
References
1. McCully, Michael G. Digging into the Data:
The Latest Trends in Alliance Structures and
Valuations. Drug Delivery Partnerships 2008.
January 23, 2008.
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