Cancer - is the end in sight for Big Pharma's last gold rush?

Back stories here.
Two quotes:

"At some point—and that point will come sooner rather than later—payers are not going to approve spending $100,000 for someone to live an extra six months," says Erik Gordon, director of biomedicine at Stevens Institute of Technology.

And

David Balekdjian, a partner at strategy consulting firm the Bruckner Group, confirms that "for many diseases, U.S. insurers are rigorously examining the outcomes new drugs produce, relative to their cost." As insurers increasingly scrutinize cancer drugs, "many will never reach their markets," Balekdjian warns.

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