Evidence map›Paper›PMID 31120889›Full record

ArticlePLoS neglected tropical diseases2019

A single dose of antibody-drug conjugate cures a stage 1 model of African trypanosomiasis.

Paula MacGregor, Andrea L Gonzalez-Munoz, Fatoumatta Jobe, Martin C Taylor, Steven Rust, Alan M Sandercock, Olivia J S Macleod, Katrien Van Bocxlaer, Amanda F Francisco, Francois D'Hooge and 7 more

Abstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2019. 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
–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

12 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Peptides, Antibodies, Peptide Antibodies and More.International journal of molecular sciences · 2019
    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

17 authors.

Paula MacGregorDepartment of Biochemistry, University of Cambridge, Cambridge, United Kingdom.ORCID 0000-0003-0919-3745
Andrea L Gonzalez-MunozDepartment of Antibody Discovery and Protein Engineering, Medimmune, Cambridge, United Kingdom.
Fatoumatta JobeDepartment of Antibody Discovery and Protein Engineering, Medimmune, Cambridge, United Kingdom.
Martin C TaylorLondon School of Hygiene and Tropical Medicine, London, United Kingdom.
Steven RustDepartment of Antibody Discovery and Protein Engineering, Medimmune, Cambridge, United Kingdom.
Alan M SandercockDepartment of Antibody Discovery and Protein Engineering, Medimmune, Cambridge, United Kingdom.
Olivia J S MacleodDepartment of Biochemistry, University of Cambridge, Cambridge, United Kingdom.ORCID 0000-0002-5747-8019
Katrien Van BocxlaerLondon School of Hygiene and Tropical Medicine, London, United Kingdom.
Amanda F FranciscoLondon School of Hygiene and Tropical Medicine, London, United Kingdom.
Francois D'HoogeSpirogen Ltd, London, United Kingdom.
Arnaud TiberghienSpirogen Ltd, London, United Kingdom.ORCID 0000-0002-2936-0515
Conor S BarrySpirogen Ltd, London, United Kingdom.
Philip HowardSpirogen Ltd, London, United Kingdom.
Matthew K HigginsDepartment of Biochemistry, University of Oxford, Oxford, United Kingdom.
Tristan J VaughanDepartment of Antibody Discovery and Protein Engineering, Medimmune, Cambridge, United Kingdom.
Ralph MinterDepartment of Antibody Discovery and Protein Engineering, Medimmune, Cambridge, United Kingdom.
Mark CarringtonDepartment of Biochemistry, University of Cambridge, Cambridge, United Kingdom.ORCID 0000-0002-6435-7266

Funding

Biotechnology and Biological Sciences Research Council BB/P010849/1Medical Research Council MR/L008246Medical Research Council MR/L008246/1Medical Research Council MR/P001424/1
6 · The paper itself

Abstract

Infections of humans and livestock with African trypanosomes are treated with drugs introduced decades ago that are not always fully effective and often have severe side effects. Here, the trypanosome haptoglobin-haemoglobin receptor (HpHbR) has been exploited as a route of uptake for an antibody-drug conjugate (ADC) that is completely effective against Trypanosoma brucei in the standard mouse model of infection. Recombinant human anti-HpHbR monoclonal antibodies were isolated and shown to be internalised in a receptor-dependent manner. Antibodies were conjugated to a pyrrolobenzodiazepine (PBD) toxin and killed T. brucei in vitro at picomolar concentrations. A single therapeutic dose (0.25 mg/kg) of a HpHbR antibody-PBD conjugate completely cured a T. brucei mouse infection within 2 days with no re-emergence of infection over a subsequent time course of 77 days. These experiments provide a demonstration of how ADCs can be exploited to treat protozoal diseases that desperately require new therapeutics.

Indexed as

AnimalsAntibodies, MonoclonalAntiprotozoal AgentsBenzodiazepinesFemaleHumansMiceMice, Inbred BALB CPyrrolesTrypanosoma brucei bruceiTrypanosomiasis, AfricanAntibodies, MonoclonalAntiprotozoal AgentsBenzodiazepinesPyrrolespyrrolo(2,1-c)(1,4)benzodiazepine

Identifiers

PMID31120889
PMCPMC6532856

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.