89% reduction in risk of hospitalization or death. Oral therapy for 5 days in people at high risk of severe Covid. The graphs look impressive. nejm.org/doi/full/10.10…
I also like the succinct summary of competing treatments (molnupiravir, monoclonal antibodies, remdesivir) for the same patient population at the end of the discussion.
Puts the results of this trial in context.
Good discussion ins the editorial also about the trial, relative risk reduction vs absolute risk reduction. nejm.org/doi/full/10.10…
Also note the trial was done in unvaccinated. The risks of severe disease in fully vaccinated and boosted is much lower. So what effect paxlovid will have in this group and whether it will have the same relative magnitude of benefit is not clear.
One of the key messages we have tried to tell people is that even if everyone is going to get Covid at some point there is a benefit to not getting it early; and to try and delay it as much as possible with preventive measures.
Because with times outcomes improve.
With time vaccines, monoclonals, and now paxlovid have reduced the risk of harm.
So a high risk person getting Covid now has a much better odds of survival than before. The outcomes improve slowly but surely.
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I hate to say this. But even as cases and deaths fall, COVID is not over: Get boosted. It is critical. Thread.
1/ In August last year, Malta became one of the highest vaccinated countries in the world. As cases rose with omicron, we thought deaths will stay low. They didn't.
2/ What happened? Did vaccines not work? Did the protection fade with time?
Well, we now know that vaccine efficacy after first 2 doses does go down with time. Malta raced to get everyone vaccinated. But when omicron hit, the population was >6 months out from initial vaccination
3/ Malta did recognize the importance of boosters early and offered them. But not everyone came and got the booster. There was also the small group of people who remained fully unvaccinated.
1) Vaccines do provide higher and longer protection than you get from infection alone
2) The incremental benefit of vaccines over prior infection alone is particularly obvious if you had COVID >1 year ago.
But it is also seen if Covid infection was less than a year ago.
3. Prior Covid infection has 80% efficacy in preventing Covid compared to no prior Covid infection. But this efficacy drops to 70% if the Covid infection was over a year ago.
The beauty of Twitter in academic medicine is you can give an online lecture that reaches many times more people than you may reach even at a huge Plenary session.
However, impact on whether you actually influence clinical practice depends a lot on credibility. #MedTwitter
Academics should view Twitter as essential as original research papers, reviews, editorials, and lectures in terms of disseminating information that they think can help others in the field. #MedTwitter
If you make the time investment and interact with people in a friendly manner, you will reach people outside of your own circle. And ultimately help patients worldwide. #MedTwitter
1/ Risk stratification: This is important both for counseling patients and to decide on treatment options. The more high risk factors, the higher the risk.
2/ Initial therapy. The 3 main choices are VRd, DRd, and Dara-VRd.
I prefer VRd. But the other options are reasonable. Transplant eligible patients need 3-4 cycles, then stem cell collection.
3/ Initial Therapy. For patients not eligible for transplant, results with DRd are outstanding. But it is more expensive and requires prolonged use of a triplet.
Risk stratification is based on the Mayo 20-2-20 system.
High risk is any 2 factors abnormal. These patients had 90% reduction in risk of end organ damage in the two RCTs of Len/Rd vs Observation. nature.com/articles/s4140…
China, New Zealand, Hong Kong, Taiwan, South Korea, Singapore, Japan, Australia, et al.
How did they do it? Did they have better experts or expertise? Did they implement preventive measures faster? Was the population more receptive. All of the above? More?
Need in depth study. And with humility and attention to detail.
So we learn and don't repeat mistakes. Perhaps nothing is fixable. But it's worth knowing what the reasons are.
Most of them kept deaths low by keeping cases low. Even when cases climbed with omicron it was in a vaccinated population. So they had accomplished what they needed to accomplish.
That means it's not a question of obesity rates or diabetes or age distribution.