Evidence map›Paper›PMID 39067061›Full record

ArticleThe Journal of infectious diseases2025

In Vitro Exposure of Treponema pallidum to Subbactericidal Doxycycline Did Not Induce Resistance: Implications for Doxycycline Postexposure Prophylaxis.

Lauren C Tantalo, Anne F Luetkemeyer, Nicole A P Lieberman, B Ethan Nunley, Carlos Avendaño, Alexander L Greninger, Connie Celum, Lorenzo Giacani

Abstract read
In one paragraph

Article in The Journal of infectious diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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. Putative mechanisms of ocular inflammation in syphilis.Journal of ophthalmic inflammation and infection · 2026
    Review
  2. The Global Syphilis Epidemic: Turning the Tide.Sexually transmitted diseases · 2026
    Article
  3. Formal description ofInternational journal of systematic and evolutionary microbiology · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Establishment of the Nichols strain as the type strain ofInternational journal of systematic and evolutionary microbiology · 2025
    Review
  10. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Lauren C TantaloDepartment of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, USA.
Anne F LuetkemeyerDivision of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, USA.
Nicole A P LiebermanDepartment of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA.
B Ethan NunleyDepartment of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA.
Carlos AvendañoDepartment of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA.
Alexander L GreningerDepartment of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA.
Connie CelumDepartment of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, USA.
Lorenzo GiacaniDepartment of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, USA.ORCID 0000-0003-3889-7274

Funding

University of Washington (UW) Sexually Transmitted Infections (STI) Cooperative Research Center (CRC) - Syphilis Vaccine to Protect against Local and Disseminated T. pallidum InfectionU19AI144133 · NIAID · UNIVERSITY OF WASHINGTON · PI WALD, ANNA · 2019 to 2023
$10.6M
Evaluation of doxycycline post-exposure prophylaxis to reduce sexually transmitted infections in PrEP users and HIV-infected men who have sex with menR01AI143439 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CELUM, CONNIE L, LUETKEMEYER, ANNE FREY · 2019 to 2023
$8.3M
National Institute of Allergy and Infectious Diseases R01AI143439-05NIAID NIH HHS R01 AI143439NIAID NIH HHS U19 AI144133
6 · The paper itself

Abstract

Doxycycline postexposure prophylaxis (doxy-PEP) could significantly reduce syphilis incidence. However, the increase in intermittent doxycycline usage might select resistant Treponema pallidum strains. To assess whether resistance to doxycycline could be induced in this pathogen, we exposed the SS14 strain in vitro, both intermittently and continuously, to a subbactericidal doxycycline concentration that still exerts antibiotic pressure. During and after each exposure experiment, we assessed the doxycycline minimal inhibitory concentration in test and control treponemes and performed whole-genome sequencing, concluding that no resistance developed. This work suggests that doxycycline-resistant T. pallidum is not an immediate threat for doxy-PEP implementation.

Indexed as

Anti-Bacterial AgentsDoxycyclineDrug Resistance, BacterialPost-Exposure ProphylaxisSyphilisTreponema pallidumHumansMicrobial Sensitivity TestsWhole Genome SequencingAnti-Bacterial AgentsDoxycyclinedoxycyclinein vitro propagationresistancesyphilisTreponema pallidum subsp. pallidum

Identifiers

PMID39067061
PMCPMC11911782

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.