Medical Drug development pipelines for new antibiotics

  • Thread starter Thread starter SW VandeCarr
  • Start date Start date
AI Thread Summary
The discussion highlights the alarming decline in drug development pipelines for new antibiotics, coinciding with the rise of resistant bacteria, particularly in war zones. Resistant gram-negative bacteria, such as Acinetobacter and imipenem-resistant Klebsiella, pose significant threats, while gram-positive bacteria are evolving from methicillin-resistant Staphylococcus aureus (MRSA) to vancomycin-resistant strains (VRSA). The lack of effective drugs for many multi-resistant strains, coupled with the toxicity of existing options, exacerbates the issue. Although gram-negative infections remain primarily hospital-acquired, gram-positive infections are increasingly common in communities. The slowdown in antibiotic development is attributed to the high costs and low returns associated with creating these specialized drugs, which often have toxic side effects and are reserved for critical cases to maintain their efficacy. Recent media coverage, including a New York Times article, has drawn attention to these challenges, particularly following reports of fatalities linked to resistant infections.
SW VandeCarr
Messages
2,193
Reaction score
77
The drug development pipelines for new antibiotics have been drying up in recent years just as new challenges from war zones are appearing (resistant gram negative (G-)bacteria such as acinetobacter and imipenim resistant klebsiella sp). Meanwhile methicillin resistant staph aureus (MRSA) is giving away to vancomycin resistant (VRSA) forms among gram positive (G+)bacteria. In many cases there are no drugs available for some multiply resistant G+ and G- strains and those that are have significant toxicity (mostly renal). While G- infections are still primarily hospital based, G+ infections are established in many communities. Although the problem is not new, the slow down in new drug development is. The following article discusses the issues. http://content.nejm.org/cgi/content/full/360/5/439

EDIT: I decided to post this after reading about a civilian in the US who just died of acinetobacter infection. It was on the Yahoo home page today. I went back to check it, and it was gone. Perhaps someone else saw it.
 
Last edited:
Biology news on Phys.org


Ygggdrasil said:
There was a recent New York Times article on this subject. Perhaps it is referencing the death you are talking about:

http://www.nytimes.com/2010/02/27/business/27germ.html

Yes. That's the article I saw. Thanks Ygggdrasil. The reasons the pharmaceutical industry is not investing more in new antimicrobial therapy for superbugs are related to the high cost and low return for developing such specialized drugs. They nearly all have some level of toxicity and are (properly) held in reserve for the most dire cases because of this and the need to preserve effectiveness.
 
Last edited:
https://www.discovermagazine.com/the-deadliest-spider-in-the-world-ends-lives-in-hours-but-its-venom-may-inspire-medical-miracles-48107 https://en.wikipedia.org/wiki/Versutoxin#Mechanism_behind_Neurotoxic_Properties https://www.sciencedirect.com/science/article/abs/pii/S0028390817301557 (subscription or purchase requred) he structure of versutoxin (δ-atracotoxin-Hv1) provides insights into the binding of site 3 neurotoxins to the voltage-gated sodium channel...
Popular article referring to the BA.2 variant: Popular article: (many words, little data) https://www.cnn.com/2022/02/17/health/ba-2-covid-severity/index.html Preprint article referring to the BA.2 variant: Preprint article: (At 52 pages, too many words!) https://www.biorxiv.org/content/10.1101/2022.02.14.480335v1.full.pdf [edited 1hr. after posting: Added preprint Abstract] Cheers, Tom
Back
Top