Nick Mark MD Profile picture
Intensivist | Husband, Dad² | created the #1 critical care podcast @CritCareTime & infographic site @OnePagerICU | passionate about MedEd & MedTech innovation

Sep 25, 2020, 6 tweets

🚨BIG NEWS: In January, the unpublished VICTAS trial of vitamin C in #sepsis was stopped after enrolling just 501 of a planned 2000

Now data on clinicaltrials.gov shows why, and it doesn’t look good for #vitaminC. Is this the last🔩in⚰️of the ‘metabolic cure’?

A short🧵
1/

I’ve been hopeful but more than a little skeptical about the 🍹🍋 metabolic cocktail for sepsis (vitamin C + hydrocortisone + thiamine) since the original before/after case series.

I’ve followed this literature closely & have been waiting eagerly for the results of the RCTs.
2/

Thats’s why I was excited to see that VICTAS had posted results. bit.ly/3j3Iatl

The VICTAS trial is the largest (& arguably best) of the vitamin C RCTs: a placebo-controlled, Double-blind RCT done at 43 sites across the US. The 1° endpoint was vasopressor free days.
3/

The results are incomplete & we will need to wait for the actual publication to get the full picture.

But what we can see doesn’t look good:
* similar mortality rate in both arms
* more vasopressor free days in the control group
* some adverse events in the vitamin C arm
4/

Even with this limited data and some simple stats, we can see that there is no significant difference in all cause mortality:
- HAT 22.2% vs Placebo 24.1% (RR 0.92 95% CI 0.67 - 1.27; p = 0.67)

There also isn’t a difference in vasopressor free days:
- HAT 25 vs Placebo 26
5/

When we think about these results in the context of the other published studies it 🎨a consistent🖼:
- *not one* study has replicated the effect seen by Marik et al

See my updated Forrest Plot (full blog post soon): The more studies we do the smaller the overall effect.
6/

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