alt Hacker NewsI have a little insight here from working with ophthalmologists.
When the article mentions "using a cancer drug to treat a leading cause of blindness" it's talking about using Bevacizumab (brand name Avastin) to treat macular degeneration.
Avastin and Lucentis are molecularly the same drug. The difference is that Avastin isn't packaged to be injected into eyeballs, and Lucentis is. Also, Avastin costs about $50/dose, and Lucentis costs around $1,500/dose.
There are compounding pharmacies that will repackage Avastin into a format that can be injected into eyeballs.
However, many ophthalmologists are hesitatnt to use Avastin because that process introduces the potential for contamination. Not that it happens frequently, but every ophthalmologist I know lives in fear of introducing an infection into their patient's eyeballs. And what level of risk is worth saving $1,450 per dose on an injection? 1/100? 1/1000?
I know at least one ophthalmologist who would use Avastin, but would culture a sample from every batch she got from the compounding pharmacy, and had at least one batch that cultured bacteria.
Assumedly, if she hadn't, every patient she injected with that batch would have been at risk of contracting endophthalmitis, and endophthalmitis is no joke. Not infrequently, it can mean losing vision.
I know several of that ophthalmologist's colleagues who had been using compounded Avastin to try and save their patients money, stopped after that incident.
I don't really have a conclusion beyond "drug pricing is insane and the issue is complex for providers."
Replies
> And what level of risk is worth saving $1,450 per dose on an injection? 1/100? 1/1000?
I've have plenty of friends that would struggle to afford that. I have friends that buy black market drugs because they can't get/afford a prescription. I don't know if I would make the same choice but I can I can understand why some people do.
The reason people get endophthalmitis is rarely due to a contaminated batch, but it certainly happens. But frankly it’s unsustainable to have all patients on branded drug, it would be too costly for patients and payers. Not to mention it is slightly unethical in the US due to drug rebates incentivizing branded drug use.
Endophthalmitis is bad, but we can treat it if caught promptly. Patient education, informed consent, good hygiene practices, and easy access to their ophthalmologist can make a tremendous difference.
Source: I do these injections for a living.
The higher manufacturer price of the eyeball-safe formulation is clearly justified, then, i.m.o. Also, is it the doctor's responsibility to assume risk to save the patient money?
They have similar targeting but are not the same molecule.
How does a lowly pharmacy transform a drug that is not for eye injection into one that is?
Compounding pharmacies can get injectibles wrong in a deadly way. Many families are still waiting for justice after the MECC pharmacy caused the deaths of 64 people:
https://en.wikipedia.org/wiki/New_England_Compounding_Center...