Evidence map›Paper›PMID 23751752›Full record

Trial reportmAbs

Influence of FCGRT gene polymorphisms on pharmacokinetics of therapeutic antibodies.

Christophe Passot, Nicolas Azzopardi, Sylvaine Renault, Nadine Baroukh, Christophe Arnoult, Marc Ohresser, Michèle Boisdron-Celle, Erick Gamelin, Hervé Watier, Gilles Paintaud and 1 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in mAbs. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Targeting FcRn for immunomodulation: a promising therapy in autoimmune inflammatory rheumatic diseases.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. The therapeutic age of the neonatal Fc receptor.Nature reviews. Immunology · 2023
    Review
  10. Review
  11. Review
  12. Article
  13. IgGBiomedicines · 2022
    Article
  14. Monoclonal antibodies for malaria prevention.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. In Translation: FcRn across the Therapeutic Spectrum.International journal of molecular sciences · 2021
    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

11 authors at 5 institutions in 2 countries.

Christophe PassotCNRS, UMR 7292, Université François Rabelais de Tours, Tours, France.
Nicolas Azzopardi
Sylvaine Renault
Nadine Baroukh
Christophe Arnoult
Marc Ohresser
Michèle Boisdron-Celle
Erick Gamelin
Hervé Watier
Gilles Paintaud
Valérie Gouilleux-Gruart
Université de Tours · FRCentre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers · FRCentre Hospitalier Universitaire de Tours · FRCentre National de la Recherche Scientifique · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The neonatal Fc receptor (FcRn) encoded by FCGRT is known to be involved in the pharmacokinetics (PK) of therapeutic monoclonal antibodies (mAbs). Variability in the expression of FCGRT gene and consequently in the FcRn protein level could explain differences in PK observed between patients treated with mAbs. We studied whether the previously described variable number tandem repeat (VNTR) or copy number variation (CNV) of FCGRT are associated with individual variations of PK parameters of cetuximab. VNTR and CNV were assessed on genomic DNA of 198 healthy individuals and of 94 patients treated with the therapeutic mAb. VNTR and CNV were analyzed by allele-specific PCR and duplex real-time PCR with Taqman (®) technology, respectively. The relationship between FCGRT polymorphisms (VNTR and CNV) and PK parameters of patients treated with cetuximab was studied. VNTR3 homozygote patients had a lower cetuximab distribution clearance than VNTR2/VNTR3 and VNTR3/VNTR4 patients (p = 0.021). We observed no affects of VNTR genotype on elimination clearance. One healthy person (0.5%) and 1 patient (1.1%) had 3 copies of FCGRT. The PK parameters of this patient did not differ from those of patients with 2 copies. The FCGRT promoter VNTR may influence mAbs' distribution in the body. CNV of FCGRT cannot be used as a relevant pharmacogenetic marker because of its low frequency.

Indexed as

Polymorphism, GeneticAntibodies, Monoclonal, HumanizedAntineoplastic AgentsCetuximabCohort StudiesFemaleGene DosageHistocompatibility Antigens Class IHumansJurkat CellsMalePromoter Regions, GeneticReceptors, FcTandem Repeat SequencesAntibodies, Monoclonal, HumanizedAntineoplastic AgentsCetuximabFc receptor, neonatalHistocompatibility Antigens Class IReceptors, FccetuximabDNA Copy Number VariationFcRngenetic polymorphismneonatal Fc receptorpharmacokineticstherapeutic drug monitoringtherapeutic monoclonal antibodies

Identifiers

PMID23751752
PMCPMC3906315
OpenAlexW2021466206

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.