Evidence map›Paper›PMID 12684759›Full record

Trial reportMedical microbiology and immunology2003

Doxycycline as a novel strategy against bancroftian filariasis-depletion of Wolbachia endosymbionts from Wuchereria bancrofti and stop of microfilaria production.

Achim Hoerauf, Sabine Mand, Kerstin Fischer, Thomas Kruppa, Yeboah Marfo-Debrekyei, Alexander Yaw Debrah, Kenneth M Pfarr, Ohene Adjei, Dietrich W Büttner

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Medical microbiology and immunology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

61 citing papers in PubMed, 1 synthesis or guideline pooled it, 157 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. The Efficacy of Doxycycline Treatment onThe American journal of tropical medicine and hygiene · 2019
    Trial
  4. Trial
  5. Trial
  6. Article
  7. Review
  8. Journal of parasitology research · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Review
  19. Heartworm disease - Overview, intervention, and industry perspective.International journal for parasitology. Drugs and drug resistance · 2021
    Review
  20. Diminutive, degraded but dissimilar:Microbial genomics · 2020
    Article

1 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 2 countries.

Achim HoeraufDepartment of Helminthology, Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359 Hamburg, Germany. hoerauf@bni.uni-hamburg.de
Sabine Mand
Kerstin Fischer
Thomas Kruppa
Yeboah Marfo-Debrekyei
Alexander Yaw Debrah
Kenneth M Pfarr
Ohene Adjei
Dietrich W Büttner
Bernhard Nocht Institute for Tropical Medicine · DEKumasi Centre for Collaborative Research in Tropical Medicine · GHKwame Nkrumah University of Science and Technology · GH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chemotherapy of onchocerciasis by doxycycline, which targets symbiotic Wolbachia endobacteria, has been shown to result in a long-term sterility of adult female worms and corresponding absence of microfilariae. It represents an additional chemotherapeutic approach. The aim of this study was to determine whether a similar regimen would also show efficacy against Wuchereria bancrofti. Ghanaian individuals ( n=93) with lymphatic filariasis and a minimum microfilaremia of 40 microfilariae/ml were included in a treatment study consisting of four arms: (1) doxycycline 200 mg/day for 6 weeks; (2) doxycycline as in (1), followed by a single dose of ivermectin after 4 months; (3) ivermectin only; or (4) no treatment during observation period of 1 year (ivermectin at the end of the study). Doxycycline treatment resulted in a 96% loss of Wolbachia, as determined by real time PCR from microfilariae. After 12 months, doxycycline had led to a 99% reduction of microfilaremia when given alone, and to a complete amicrofilaremia together with ivermectin. In contrast, after ivermectin treatment alone a significant presence of microfilariae remained (9% compared to pretreatment), as known from other studies. This study shows that doxycycline is also effective in depleting Wolbachia from W. bancrofti. It is likely that the mechanism of doxycycline is similar to that in other filarial species, i.e., a predominant blockade of embryogenesis, leading to a decline of microfilariae according to their half-life. This could render doxycycline treatment an additional tool for the treatment of microfilaria-associated diseases in bancroftian filariasis, such as tropical pulmonary eosinophilia and microfiluria.

Indexed as

AdolescentAdultAnimalsAnti-Bacterial AgentsDoxycyclineElephantiasis, FilarialFemaleFilaricidesGhanaHumansIvermectinMaleMicrofilariaeMiddle AgedParasitemiaSymbiosisAnti-Bacterial AgentsDoxycyclineFilaricidesIvermectin

Identifiers

PMID12684759
OpenAlexW2078004533

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.