Evidence map›Paper›PMID 27851688›Full record

ArticleTherapeutic drug monitoring2016

Brincidofovir Is Not a Substrate for the Human Organic Anion Transporter 1: A Mechanistic Explanation for the Lack of Nephrotoxicity Observed in Clinical Studies.

Timothy K Tippin, Marion E Morrison, Thomas M Brundage, Hervé Momméja-Marin

Open access · hybridAbstract read
In one paragraph

Article in Therapeutic drug monitoring, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

  1. Pooled it
  2. A Randomized, Double-Blind, Placebo-Controlled Phase 3 Trial of Oral Brincidofovir for Cytomegalovirus Prophylaxis in Allogeneic Hematopoietic Cell Transplantation.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2019
    Trial
  3. A comprehensive overview of monkeypox virus disease.Tropical medicine and health · 2026
    Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Human monkeypox infection threat: A comprehensive overview.PLoS neglected tropical diseases · 2023
    Review
  14. Antivirals With Activity Against Mpox: A Clinically Oriented Review.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Review
  15. Anti-CMV therapy, what next? A systematic review.Frontiers in microbiology · 2023
    Review
  16. Review
  17. Monkeypox Virus Infections in Humans.Clinical microbiology reviews · 2022
    Review
  18. Monkeypox virus: An emerging epidemic.Microbial pathogenesis · 2022
    Review
  19. Antiviral Treatment against Monkeypox: A Scoping Review.Tropical medicine and infectious disease · 2022
    Article
  20. Monkeypox: epidemiology, pathogenesis, treatment and prevention.Signal transduction and targeted therapy · 2022
    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

4 authors at 2 institutions in 2 countries.

Timothy K TippinChimerix, Durham, North Carolina.
Marion E Morrison
Thomas M Brundage
Hervé Momméja-Marin
Biomedical Advanced Research and Development Authority · USCreative Commons · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBrincidofovir (BCV) is an orally bioavailable lipid conjugate of cidofovir (CDV) with increased in vitro potency relative to CDV against all 5 families of double-stranded DNA viruses that cause human disease. After intravenous (IV) administration of CDV, the organic anion transporter 1 (OAT1) transports CDV from the blood into the renal proximal tubule epithelial cells with resulting dose-limiting nephrotoxicity.

objectiveTo study whether OAT1 transports BCV and to evaluate the pharmacokinetic and renal safety profile of oral BCV compared with IV CDV.

methodsThe cellular uptake of BCV and its major metabolites was assessed in vitro. Renal function at baseline and during and after treatment in subjects in BCV clinical studies was examined.

resultsIn OAT1-expressing cells, uptake of BCV and its 2 major metabolites (CMX103 and CMX064) was the same as in mock-transfected control cells and was not inhibited by the OAT inhibitor probenecid. In human pharmacokinetic studies, BCV administration at therapeutic doses resulted in detection of CDV as a circulating metabolite; peak CDV plasma concentrations after oral BCV administration in humans were <1% of those observed after IV CDV administration at therapeutic doses. Analysis of renal function and adverse events from 3 BCV clinical studies in immunocompromised adult and pediatric subjects indicated little to no evidence of associated nephrotoxicity. Over 80% of subjects who switched from CDV or foscarnet to BCV experienced an improvement in renal function as measured by maximum on-treatment estimated glomerular filtration rate.

conclusionsThe lack of BCV uptake through OAT1, together with lower CDV concentrations after oral BCV compared with IV CDV administration, likely explains the superior renal safety profile observed in immunocompromised subjects receiving BCV compared with CDV.

Indexed as

AdolescentAdultAgedAnimalsAntiviral AgentsBiological TransportCell LineChildCytosineDogsFemaleGlomerular Filtration RateHumansKidney Tubules, ProximalMadin Darby Canine Kidney CellsMaleAntiviral AgentsbrincidofovirCytosineOrganic Anion Transport Protein 1Organophosphonates

Identifiers

PMID27851688
PMCPMC5113238
OpenAlexW2553868906

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.