Evidence map›Paper›PMID 38374963›Full record

ArticleMolecular therapy. Methods & clinical development2024

AAV gene therapy in companion dogs with severe hemophilia: Real-world long-term data on immunogenicity, efficacy, and quality of life.

Bhavya S Doshi, Benjamin J Samelson-Jones, Timothy C Nichols, Elizabeth P Merricks, Joshua L Siner, Robert A French, Ben J Lee, Valder R Arruda, Mary Beth Callan

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
9.4field-weighted citation impact, top 2% 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

13 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Review
  9. Current clinical applications of AAV-mediated gene therapy.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  10. Gene therapy for hemophilia - From basic science to first approvals of "one-and-done" therapies.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  11. Review
  12. Review
  13. Immune tolerance induction by hepatic gene transfer: First-in-human evidence.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Article
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 4 institutions in 1 country.

Bhavya S DoshiDepartment of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Benjamin J Samelson-JonesDepartment of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Timothy C NicholsDepartment of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina, Chapel Hill, NC 27516, USA.
Elizabeth P MerricksDepartment of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina, Chapel Hill, NC 27516, USA.
Joshua L SinerDivisions of Hematology and Medical Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO 63110, USA.
Robert A FrenchDivision of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Ben J LeeDivision of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Valder R ArrudaDepartment of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Mary Beth CallanDepartment of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Children's Hospital of Philadelphia · USUniversity of North Carolina at Chapel Hill · USUniversity of Pennsylvania · USWashington University in St. Louis · US

Funding

Immune tolerance induction by AAV-FVIII gene therapy for canine hemophilia A with inhibitorsR01HL158781 · NHLBI · CHILDREN'S HOSP OF PHILADELPHIA · PI SAMELSON-JONES, BEN J · 2021 to 2024
$3.0M
Mechanistic insights into factor VIII inhibitor formation and eradicationK99HL156073 · NHLBI · EMORY UNIVERSITY · PI DOSHI, BHAVYA SHARAD · 2021 to 2025
$786k
NHLBI NIH HHS K99 HL156073NHLBI NIH HHS R01 HL158781
6 · The paper itself

Abstract

The hemophilias are the most common severe inherited bleeding disorders and are caused by deficiency of clotting factor (F) VIII (hemophilia A) or FIX (hemophilia B). The resultant bleeding predisposition significantly increases morbidity and mortality. The ability to improve the bleeding phenotype with modest increases in clotting factor levels has enabled the development and regulatory approval of adeno-associated viral (AAV) vector gene therapies for people with hemophilia A and B. The canine hemophilia model has proven to be one of the best predictors of therapeutic response in humans. Here, we report long-term follow-up of 12 companion dogs with severe hemophilia that were treated in a real-world setting with AAV gene therapy. Despite more baseline bleeding than in research dogs, companion dogs demonstrated a 94% decrease in bleeding rates and 61% improvement in quality of life over a median of 4.1 years (range 2.6-8.9). No new anti-transgene immune responses were detected; one dog with a pre-existing anti-FVIII inhibitor achieved immune tolerance with gene therapy. Two dogs expressing 1%-5% FVIII post gene therapy experienced fatal bleeding events. These data suggest AAV liver-directed gene therapy is efficacious in a real-world setting but should target expression >5% and closely monitor those with levels in the 1%-5% range.

Indexed as

AAV gene therapycompanion animalsefficacyhemophiliareal world

Identifiers

PMID38374963
PMCPMC10875295
OpenAlexW4391485441

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.