Where is all artificial intelligence drugs?

New medicine It usually begins with a tragedy.

Peter Ray knows that. Ray was born in what is now known as Zimbabwe, a mechanical and ray child, with his family to South Africa during the liberation war in Zimbabwe. He remembers the journey there in 1980 in a convoy of armored cars. When the sun erupted, a 8 -year -old soldier taught Ray, how to shoot a machine gun. But his mother continued to stop. She was not fine.

Doctors in Cape Town diagnosed it cancer. Ray remembers going to her radiotherapy with her, hospital halls, and colon vapor bags. She loved the beach, I liked walking along the line as she met the water. But it became difficult for her to go. Sometimes she returned home from the hospital for a while and it seems that things will improve. Ray got his hopes. Then things will collapse again. Surgery, radiation and chemotherapy – treatments that were on the table in the eighties – quickly exhausted. While she was dying, he promised that he would make a difference, in some way. He was 13 years old.

Ray studied to become a medical chemical, first in South Africa, where he obtained loans to finance his studies, then at the University of Liverpool. He was working in Pharmaceutical companies Throughout the United Kingdom, in many projects. Now, in 53 years, he is one of the pharmaceutical drug designers called Recursion. He is thinking about this promise for his mother a lot. He says, “He lived with me all my life.” “I need to obtain drugs in the market that affects cancer.”

The desire to prevent your traps to another person may be a strong incentive. But practical Drug detection He was always slow, hard slow. Firstly, Chemists Like Ray Zero on its target – usually a protein, a long chain of amino acids wrapped and folded on itself. They call a model on their computer screen and watch it running a black void. They notice curves and deviation on its surface, the places where the molecule can be anchored, which sails through the darkness like the space ship. Then, atom by Atom, they try to build a space ship.

When the new molecule is ready, chemists pass it to BiologistsThose who test it on living cells in warm rooms. More tragedy: Many cells die, for always unclear reasons. Biology is complex, and the new drug does not work as expected. Chemists will have to create another, another, switch, and control, often for years. Biology world, Keith Mikul from Internal medicineHe told me about his experience in a different drug company. After five years of work, their best unexpected molecule and dangerous side effects that mean that they could not take it more. He said: “There was a large team of chemists, a large team of biologists, and thousands of molecules, not real progress.”

If the team is very lucky, they get a molecule, in mice, they do what it is supposed to be. They get an opportunity to give it a small group of healthy volunteers, the first stage trial. If the volunteers remain in good health, they give it to more people, including those who suffer from the disease concerned, in the second stage. If patients do not get sick, they get a chance – the third stage – to give them more patients, as much as they can find a variety as possible.

At each stage, for reasons that a few people understand and less than that, the great rolls of the drug leak. More than 90 percent of hope fails along the way. When you meet drug fishermen, you may ask them with caution and caution, if they have a drug ever. “It is very rare,” says Micol, who has one drug (Nairaparib, for ovarian cancer). “We are alone.”