Remdesivir: NOT a Game Changer

How I wish that this was a positive study. We’re in need of a helpful tool. I’ve thrown every possible treatment including tPA at patients to try to save them and nothing is 100% at this point. I took apart the first Remdesivir study several weeks ago and was not impressed. History is repeating itself.

This study was published to much fanfare and media attention yesterday. It was so good that the Lancet hid it behind the paywall when they had made all their COVID coverage free until this point. Shady shady (EDIT: it is now free to download). I have to credit my partner Kelly for getting me this paper. My NP Cody texted me about it 45 seconds before Kelly. I love my team.

There’s much to go over here. Too much to fit in the limited character count on IG but I’ll try my best. I could be wrong, don’t trust me, read the data for yourself. There are many details I just can’t cover because I’m trying to live my life. Let’s go!

Investigator initiated: they weren’t randomized from the get-go based on certain criteria, someone chose these patients. If your patients have renal failure or are on CRRT, these data do not apply as they were excluded from the study. The placebo group had more males which it’s the sex harder hit by COVID but the Remdesivir group had more HTN, DM, and CAD. These patients were less ill than the prior study. Interpret that as you may.

Remdesivir, 200mg on day 1, 100mg days 2-10 vs. placebo (2:1); n=158 vs. 78

Primary endpoint: time to clinical improvement within 28 days after randomization. What type of vague endpoint is that? Correct me if I’m wrong but that's a very uncommon endpoint. Either way, there was no statistically significant difference. Now, they admit that it’s not statistically significant, but they said there’s a trend that if they started the study drug within 10 days there’s possibly a benefit for faster clinical improvement. That’s a lot of ifs but this is where I figure there should be a benefit if there was to be one. Even with this caveat in mind, there was no difference in mortality if started early or late.

Secondary endpoints that you and I care about: all-cause mortality at day 28; frequency of invasive mechanical ventilation; duration of oxygen therapy; duration of hospital admission. No difference in any of these. There wasn’t even a difference in viral loads. This is an antiviral drug, by the way.

To be honest with you I’m not even going to go over the adverse effect stuff because I’m not convinced this works and I don’t think I can get my hands on it for my patients even if I wanted it. Well, maybe now since others may feel the same way I do and many aren’t going to want it.

The study was stopped early because they didn’t have enough patients to continue. Why not phone some friends and make the study multicentered? I disagree. I’m not a research conducting guy. I don’t want to further expose my ignorance.

I’m tired. This COVID stuff has exhausted me and I’m not even in an epicenter. I sympathize for all my colleagues in busier places than me. I have a strange survivorship guilt thing going on. I’m here for you all.

-EJ

Wang Y Zhang D Du G et al. Remdesivir in adults with severe COVID-19: a randomised, double-blind, placebo-controlled, multicentre trial. Lancet. 2020; (published online April 29.)

Addendum: the Lancet now made the paper open access. I can't take the credit for them doing that! 

Link to Article

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Remdesivir in Severe COVID-19

Let's be quite clear here, there's no miracle drug for all this. I personally have zero experience with remdesivir at this point in time. Hopefully you all can comment on whether you anecdotally think it works or not. This study was published earlier today in the NEJM and is free for you to download and read for yourself. Do not trust me. This is not medical advice. This is industry sponsored but someone had to pay for the medication. 

We've all been hearing about compassionate use but what does it mean? Well, it means that we can give an unapproved (by the FDA in the US) medication has the potential benefit to justify the risks of treatment. In this case, remdesivir has been pulled from the shelf to allow us to try to treat COVID-19 due to its in vitro activity against SARS-CoV-2. It also has numerous other applications that you can check out on your own. 

n=53 (originally 61 but some couldn't be analyzed) 75% were dudes. 57% on vent. 8% on ECMO. 
Patients: sats < 94% on RA or need for O2. Also needed to have kidneys and a liver (that all worked). Symptoms started a median 12 days prior to starting treatment. 
Dose: 200mg IV on day 1, 100mg IV on days 2-10.

What did they do? 
They monitored the patients for at least 28 days and quantified events. No specified end points. It was a "let's see what happens" study. Compassionate use, indeed. Patients were obviously not randomized. No control arm. Sigh. 

What did they find?
68% had an improvement in their O2 support. 15% worsened. It's not 100% but nothing is except death and taxes. Was this because of the medication? We do not know.
Pts on RA or low flow: 100% got better. either they were going to get better on their own or the medication helped. 
NIV or HFNC: 71% got better. Again, either they were going to get better on their own or the medication helped.  

13% of all patients died. 18% of the patients on vents died. 5% of the patients on NIV died. Are these numbers about what we're seeing for patients who end up in our hospitals? 

Did they cause harm?
60% had adverse effects but if you honestly look at these, I can't say they're necessarily the fault of the study drug. 23% had pyrexia (fever) well, duh. And we are seeing renal impairment, AKI, MODS, DVT, ARDS all because of cytokine release syndrome. Can't blame this necessarily on remdesivir. Also, two patients had pneumothoraces. That's definitely not the study drug. 

The limitations are endless and listed thoroughly by the authors. I honestly don't know what to do with this data. It's not like the results are too good to be true. They're just meh. 

-EJ

Link to Article

Link to PDF

FDA definition of "compassionate use"



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