In Reply to: Monday, Monday. Can't trust that day.* posted by mh on August 24, 2026 at 09:17:56
There is a clear incentive for the recommended doses to be too high. These are very profitable drugs, and the more you take, the more the pharma company makes.
-----------------------------------------------
Canada, Israel, Sweden, and other countries are already doing: giving lower doses of nivolumab, sold under the brand name Opdivo, and of a similar drug, pembrolizumab (Keytruda), or giving them for shorter periods or over longer intervals than the FDA recommended. In India, oncologists found that as little as one-twelfth of the labeled dosage of nivolumab had a powerful impact on several cancers.
“There is incredible uncertainty in drug dosing,” one patient said.
His experience impelled him to join an informal yet determined community of researchers, doctors, and patients pushing for extra studies to help patients and doctors find the right dosage for an array of cancer drugs. They point to evidence suggesting that taking smaller doses of some cancer drugs, or remaining on them for shorter periods, could save billions of dollars and prevent some of the worst side effects.
In a recent KFF survey, 43% of U.S. adults said they had skipped their medication in the past year because of cost. A Vanderbilt University study of Medicare enrollees released in 2022 found that 30% of cancer drug prescriptions went unfilled at the pharmacy.
But dose-optimization studies rarely occur after the early stages of a drug’s development, or once it’s on the market. By then, few parties in the U.S. healthcare system — beyond patients — have a stake in learning that a lower dosage could work as well while causing less harm.
Pharmaceutical companies have shown little interest in dialing back recommended dosages. Once they set the price for a drug, the more sales, the more profit. One study that examined 29 expensive cancer drugs estimated that if minimum necessary dosages had been used in 2024, the U.S. healthcare system could have saved roughly $31 billion.