Researchers Aim to Speed Cures to Patients

Hoping to speed development of treatments for cancer, Alzheimer's and other diseases, scientists are testing new methods to research promising medications.

Bringing a new drug to market typically costs upward of $100 million and can take as many as 15 years of research, testing and regulatory review. As a result, health experts worry that not enough innovative medicines are being developed, or that the progress is too slow.