Evidence map›Paper›PMID 27344436›Full record

Trial reportIntensive care medicine2016

Protein C zymogen in severe sepsis: a double-blinded, placebo-controlled, randomized study.

Federico Pappalardo, Martina Crivellari, Ambra L Di Prima, Nataliya Agracheva, Malgorzata Celinska-Spodar, Rosalba Lembo, Daiana Taddeo, Giovanni Landoni, Alberto Zangrillo

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Intensive care medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. ICM focus on thrombosis and bleeding.Intensive care medicine · 2017
    Article
  8. Article
  9. Article
  10. Estimation bias resulting from sparse data.Intensive care medicine · 2016
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 3 countries.

Federico PappalardoIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
Martina CrivellariIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy. crivellari.martina@hsr.it.ORCID http://orcid.org/0000-0002-5269-3967
Ambra L Di PrimaIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
Nataliya AgrachevaIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
Malgorzata Celinska-SpodarIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
Rosalba LemboIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
Daiana TaddeoIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
Giovanni LandoniIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
Alberto ZangrilloIRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
Vita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo determine whether protein C zymogen (protein C concentrates or human protein C) improves clinically relevant outcomes in adult patients with severe sepsis and septic shock.

methodsThis is a randomized, double-blind, placebo-controlled, parallel-group trial that from September 2012 to June 2014 enrolled adult patients with severe sepsis or septic shock and high risk of death and of bleeding (e.g., APACHE II greater than 25, extracorporeal membrane oxygenation or disseminated intravascular coagulopathy). All patients completed their follow-up 90 days after randomization and data were analyzed according to the intention-to-treat principle. Follow-up was performed at 30 and 90 days after randomization. The primary endpoint was a composite outcome of prolonged intensive care unit (ICU) stay and/or 30-day mortality. Secondary endpoints included mortality.

resultsThe study was stopped early in a situation of futility for the composite outcome of prolonged ICU stay and/or 30-day mortality that was 79 % (15 patients) in the protein C zymogen group and 67 % (12 patients) in the placebo group (p = 0.40) and for a concomitant safety issue: ICU mortality was 79 % (15 patients) in the protein C zymogen group vs 39 % (7 patients) in the placebo group (p = 0.020), and 30-day mortality was 68 vs 39 % (p = 0.072).

conclusionProtein C zymogen did not improve clinically relevant outcomes in severe sepsis and septic shock adult patients. Given its high cost and the potential increase in mortality, the use of this drug in adult patients should be discouraged.

Indexed as

Intensive Care UnitsLength of StayAgedChi-Square DistributionDouble-Blind MethodEarly Termination of Clinical TrialsFemaleFibrinolytic AgentsHumansInfusions, IntravenousMaleMiddle AgedProtein CSecretory VesiclesSepsisShock, SepticFibrinolytic AgentsProtein CCritical careIntensive careMortalityProtein CSepsisSeptic shock

Identifiers

PMID27344436
OpenAlexW2461771236

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.