Showing posts with label Medicine. Show all posts
Showing posts with label Medicine. Show all posts

Dec 6, 2013

New drug for old insomnia

The FDA has been quite a controversial government agency, particulary regarding the process for new-drugs approval. Once again, a new drug has been developed; this time, Merck is trying to fight insomnia with an effective slepping pill without the common side effects of the existing sleep disorder medication. Ian Parker wrote an article regarding this matter in The New Yorker called "Big Sleep". In this article, Parker reviews the "sleeping pill" industry and provides an insight of the troubled, bureaucratic F.D.A drug approval process. What are the economic consequences of such approval processes? What should really be the role of the F.D.A, specially concerning the approval of medications that could benefit millions of people?

A few weeks later, the F.D.A. wrote to Merck. The letter encouraged the company to revise its application, making ten milligrams the drug’s starting dose. Merck could also include doses of fifteen and twenty milligrams, for people who tried the starting dose and found it unhelpful. This summer, Rick Derrickson designed a ten-milligram tablet: small, round, and green. Several hundred of these tablets now sit on shelves, in rooms set at various temperatures and humidity levels; the tablets are regularly inspected for signs of disintegration.
The F.D.A.’s decision left Merck facing an unusual challenge. In the Phase II trial, this dose of suvorexant had helped to turn off the orexin system in the brains of insomniacs, and it had extended sleep, but its impact didn’t register with users. It worked, but who would notice? Still, suvorexant had a good story—the brain was being targeted in a genuinely innovative way—and pharmaceutical companies are very skilled at selling stories.
Merck has told investors that it intends to seek approval for the new doses next year. I recently asked John Renger how everyday insomniacs would respond to ten milligrams of suvorexant. He responded, “This is a great question.” After the approval process is finished, the marketing division of Merck—a company whose worldwide sales last year totalled forty-seven billion dollars—will conduct a different kind of public trial. The study will address this question: How successfully can a pharmaceutical giant—through advertising and sales visits to doctors’ offices—sell a drug at a dose that has been repeatedly described as ineffective by the scientists who developed it? (Ian Parker, "Big Sleep"). 
Insomnia, far from being just a sleep disorder, has negative biological and cognitive consequences and, unfortunately, is terribly common. 
• About 30 percent of adults have symptoms of insomnia 
• About 10 percent of adults have insomnia that is severe enough to cause daytime 
consequences 
• Less than 10 percent of adults are likely to have chronic insomnia (according to the American Academy of Sleep Medicine.)

Feb 14, 2013

Complications

This is one of the best books I've read in the last few months. It is "electrifying," especially the last chapter. It is a fantastic look at medicine by an insider, who is also a great writer. He portrays medicine as an imperfect and challenging science, which reminded me so much of economics. 
A TED talk by the author is here. He also writes for the The New Yorker. 
I would like to read everything he has written, and this will probably be the next one. 

Dec 27, 2011

A great Nobel-Prize banquet-speech

There are awesome speeches, but this one stands out. 
The goal of science, as we all know, is to discover simplicity in the midst of complexity. Yet when Paul Nurse, Tim Hunt and I and our students and colleagues began studying how cells divide, any sensible scientist should have expected to find only hopeless complexity. If you think of cell division as a symphony, we knew that the symphony had to be performed by thousands of musicians each playing a different instrument. So - our research can only be described as motivated by a kind of foolish optimist. Sometimes nature rewards foolish optimism. Continuing with the metaphor of cell division as a symphony, our research paths led each of us, independently and by great luck, smack into the conductor of the symphony. And, it turned out that the same conductor performed this symphony in all types of cells - yeast, fruit flies, sea urchins, frogs and humans. I really have no idea how often nature rewards such foolish optimism, but I am pleased to report that the Nobel committee is rather fond of foolish optimism.
That is Leland H. Hartwell's speech in 2001. He is a Nobel Laureate in psychology or medicine. Source.