Evidence map›Paper›PMID 26960296›Full record

ArticlePharmaceutical research2016

Safety, Stability and Pharmacokinetic Properties of (super)Factor Va, a Novel Engineered Coagulation Factor V for Treatment of Severe Bleeding.

Andrew J Gale, Vikas Bhat, Jean-Luc Pellequer, John H Griffin, Laurent O Mosnier, Annette Von Drygalski

Open access · greenAbstract readComparative Study
In one paragraph

Article in Pharmaceutical research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

12 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Novel alternate hemostatic agents for patients with inhibitors: beyond bypass therapy.Hematology. American Society of Hematology. Education Program · 2017
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Andrew J GaleDepartment of Molecular and Experimental Medicine, The Scripps Research Institute, 10550 N Torrey Pines Rd, La Jolla, California, USA. gale.andy@gmail.com.ORCID 0000-0001-8542-2189
Vikas BhatDepartment of Molecular and Experimental Medicine, The Scripps Research Institute, 10550 N Torrey Pines Rd, La Jolla, California, USA.
Jean-Luc PellequerUniversity Grenoble Alpes, IBS, F-38044, Grenoble, France.
John H GriffinDepartment of Molecular and Experimental Medicine, The Scripps Research Institute, 10550 N Torrey Pines Rd, La Jolla, California, USA.
Laurent O MosnierDepartment of Molecular and Experimental Medicine, The Scripps Research Institute, 10550 N Torrey Pines Rd, La Jolla, California, USA.
Annette Von DrygalskiDepartment of Molecular and Experimental Medicine, The Scripps Research Institute, 10550 N Torrey Pines Rd, La Jolla, California, USA.
Scripps Research Institute · USCentre National de la Recherche Scientifique · FR

Funding

Structure and Function of Protein CR01HL052246 · NHLBI · SCRIPPS RESEARCH INSTITUTE, THE · PI GRIFFIN, JOHN H · 2005 to 2017
$9.6M
PROTEINS OF COAGULATION PATHWAYSR01HL021544 · NHLBI · SCRIPPS RESEARCH INSTITUTE, THE · PI GRIFFIN, JOHN H · 1985 to 2014
$7.5M
Structure-function of cytoprotective coagulation proteases and their receptorsR01HL104165 · NHLBI · SCRIPPS RESEARCH INSTITUTE, THE · PI MOSNIER, LAURENT OLIVIER · 2011 to 2024
$6.1M
STRUCTURE/FUNCTION OF PROTEIN CR37HL052246 · NHLBI · SCRIPPS RESEARCH INSTITUTE · PI GRIFFIN, JOHN H · 1995 to 2004
$2.9M
NHLBI NIH HHS R01 HL021544NHLBI NIH HHS R01 HL052246NHLBI NIH HHS R01 HL104165NHLBI NIH HHS R37 HL052246
6 · The paper itself

Abstract

purposeActivated (super)Factor V ((super)FVa) is a novel engineered FV with excellent prohemostatic efficacy. (Super)FVa has three APC cleavage site mutations and an interdomain disulfide bond. Stability, pharmacokinetics, and immunogenic and thrombogenic potential are reported here.

methodsStability and circulating half-life were determined after incubation in buffer and human plasma, and after injection into FVIII-deficient mice. Immunogenicity potential was assessed by B- and T-cell specific epitope prediction and structural analysis using surface area and atomic depth computation. Thrombogenic potential was determined by quantification of lung fibrin deposition in wild-type mice after intravenous injection of (super)FVa (200 U/kg), recombinant human (rh) Tissue Factor (0.4-16 pmol/kg), rhFVIIa (3 mg/kg) or saline.

resultsFVa retained full activity over 30 h in buffer, the functional half-life in human plasma was 4.9 h, and circulating half-life in FVIII-deficient mice was ~30 min. Predicted immunogenicity was not increased compared to human FV. While rh Tissue Factor, the positive control, resulted in pronounced lung fibrin depositions (mean 121 μg/mL), (super)FVa did not (6.7 μg/mL), and results were comparable to fibrin depositions with rhFVIIa (7.6 μg/mL) or saline (5.6 μg/mL).

conclusionFVa has an appropriate safety and stability profile for further preclinical development as a prohemostatic against severe bleeding.

Indexed as

AnimalsDisease Models, AnimalDrug StabilityFactor VaFactor VIIIFemaleFibrinHalf-LifeHemophilia AHemostaticsHumansInjections, IntravenousLungMaleMice, Inbred BALB CMice, KnockoutFactor VaFactor VIIIFibrinHemostaticsRecombinant ProteinsThrombinbleedingfactor Vhemophiliahemostasisimmunogenicitythrombogenicity

Identifiers

PMID26960296
PMCPMC4854778
OpenAlexW2295706036

What OpenQuestion holds

Textmetadata
LicenceTDM
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.