Evidence map›Paper›PMID 35347281›Full record

Trial reportNature medicine2022

In vivo topical gene therapy for recessive dystrophic epidermolysis bullosa: a phase 1 and 2 trial.

Irina Gurevich, Pooja Agarwal, PeiPei Zhang, John A Dolorito, Stacie Oliver, Henry Liu, Nicholas Reitze, Nikhil Sarma, Isin Sinem Bagci, Kunju Sridhar and 9 more

Registry-linked trialOpen access · hybridAbstract readClinical Trial, Phase IClinical Trial, Phase IIRandomized Controlled Trial
In one paragraph

Trial report in Nature medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03536143 (A Phase I/II Study of KB103, a Non-Integrating, Replication-Incompetent HSV Vector Expressing the Human Collagen VII Protein, for the Treatment of Dystrophic Epidermolysis Bullosa), which is not on this map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
17.3field-weighted citation impact, top 1% 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.

NCT03536143 phase1 / phase2completednot on this map

A Phase I/II Study of KB103, a Non-Integrating, Replication-Incompetent HSV Vector Expressing the Human Collagen VII Protein, for the Treatment of Dystrophic Epidermolysis Bullosa (DEB)

TypeinterventionalSponsorKrystal Biotech, Inc.Ran2018 to 2019Enrolled12ConditionsDystrophic Epidermolysis BullosaArmsTopical beremagene geperpavec, Placebo gel
3 · Its place in the literature

Who cites it

82 citing papers in PubMed, 154 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Viral vector-based gene therapies in the clinic: An update.Bioengineering & translational medicine · 2026
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Gene Therapies in Dermatological Diseases: A Breakthrough in Treatment.International journal of molecular sciences · 2025
    Review
  18. Papillomavirus-like particles as vectors forMolecular therapy. Nucleic acids · 2025
    Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors at 4 institutions in 1 country.

Irina GurevichProgram in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, USA.ORCID http://orcid.org/0000-0001-9576-0456
Pooja AgarwalKrystal Biotech, Pittsburgh, PA, USA.
PeiPei ZhangKrystal Biotech, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0003-0918-0610
John A DoloritoProgram in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, USA.
Stacie OliverKrystal Biotech, Pittsburgh, PA, USA.
Henry LiuKrystal Biotech, Pittsburgh, PA, USA.
Nicholas ReitzeKrystal Biotech, Pittsburgh, PA, USA.
Nikhil SarmaKrystal Biotech, Pittsburgh, PA, USA.
Isin Sinem BagciProgram in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, USA.
Kunju SridharProgram in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, USA.
Visesha KakarlaProgram in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, USA.
Vamsi K YenamandraProgram in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, USA.
Mark O'MalleyKrystal Biotech, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0002-5463-977X
Marco PriscoSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.
Sara F TufaMicroscopy Unit, Shriners Hospital for Children, Portland, OR, USA.ORCID http://orcid.org/0000-0002-6447-8041
Douglas R KeeneMicroscopy Unit, Shriners Hospital for Children, Portland, OR, USA.
Andrew P SouthSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0001-7650-0835
Suma M KrishnanKrystal Biotech, Pittsburgh, PA, USA.
M Peter MarinkovichProgram in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, USA. mpm@stanford.edu.ORCID http://orcid.org/0000-0001-5528-8046
Stanford University · USShriners Hospitals for Children - Portland · USThomas Jefferson University · USVeterans Health Administration · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recessive dystrophic epidermolysis bullosa (RDEB) is a lifelong genodermatosis associated with blistering, wounding, and scarring caused by mutations in COL7A1, the gene encoding the anchoring fibril component, collagen VII (C7). Here, we evaluated beremagene geperpavec (B-VEC), an engineered, non-replicating COL7A1 containing herpes simplex virus type 1 (HSV-1) vector, to treat RDEB skin. B-VEC restored C7 expression in RDEB keratinocytes, fibroblasts, RDEB mice and human RDEB xenografts. Subsequently, a randomized, placebo-controlled, phase 1 and 2 clinical trial (NCT03536143) evaluated matched wounds from nine RDEB patients receiving topical B-VEC or placebo repeatedly over 12 weeks. No grade 2 or above B-VEC-related adverse events or vector shedding or tissue-bound skin immunoreactants were noted. HSV-1 and C7 antibodies sometimes presented at baseline or increased after B-VEC treatment without an apparent impact on safety or efficacy. Primary and secondary objectives of C7 expression, anchoring fibril assembly, wound surface area reduction, duration of wound closure, and time to wound closure following B-VEC treatment were met. A patient-reported pain-severity secondary outcome was not assessed given the small proportion of wounds treated. A global assessment secondary endpoint was not pursued due to redundancy with regard to other endpoints. These studies show that B-VEC is an easily administered, safely tolerated, topical molecular corrective therapy promoting wound healing in patients with RDEB.

Indexed as

Epidermolysis Bullosa DystrophicaAnimalsCollagen Type VIIGenetic TherapyHumansKeratinocytesMiceSkinCOL7A1 protein, humanCollagen Type VII

Identifiers

PMID35347281
PMCPMC9018416
OpenAlexW4220939921

What Socratic holds

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LicenceCC BY
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Registered trials

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.