I had been dealing with pain for weeks — a bothersome ache that felt like a bad runner’s cramp. But now it was so intense I had to brace myself against the wall to stand up.

A few hours after arriving at the emergency room, I heard my name. A doctor asked me to follow him to a private area, where he told me a scan had uncovered something “concerning.”

There were lesions, areas of bone destruction, on top of both of my hip bones and on my sternum. These were hallmarks of multiple myeloma. “Cancer,” he said.

. . .

For decades, I’ve reported on outrageous health care costs in the U.S. and the burden they place on patients. I’ve revealed the tactics used by drug companies to drive sales and keep the price of their products high.

Even with my experience, the cost of Revlimid stood out. When I started taking the drug, I’d look at the smooth, cylindrical capsule in my hand and consider the fact I was about to swallow something that costs about the same as a new iPhone. A month’s supply, which arrives in an ordinary, orange-tinged plastic bottle, is the same price as a new Nissan Versa.

I wanted to know how this drug came to cost so much — and why the price keeps going up. The price of Revlimid has been hiked 26 times since it launched. Some of what happened was reported at the time. But no one has pieced together the full account of what the drugmaker Celgene did, how federal regulators failed to rein it in and what the story reveals about unrestrained drug pricing in America.

What I discovered astonished even me.

. . .