Drugs / DB-OTO
last change May 2026 re-read 3 minutes ago

DB-OTO

Gene therapy (AAV / viral vector) targets OTOF

Developed for
nonsyndromic genetic hearing loss
Investigated by
Regeneron Pharmaceuticals

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Filed US (FDA) — prelingual non-syndromic genetic hearing loss —

“the Company submitted a BLA to the FDA for DB-OTO (an AAV-based gene therapy) for the treatment of profound genetic hearing loss” regeneron.com ↗

Trials 1

202420252026202720282029
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 1/2 NCT05788536 Jun 2023 → Feb 2029 expected nonsyndromic genetic hearing loss Regeneron Pharmaceuticals Recruiting Met primary

News releases announcing trial results or a regulatory action · 7

DateIssuerRelease
2026-05-22 Regeneron Pharmaceuticals Regulatory Otarmeni™ (lunsotogene parvec) Receives EMA Filing Acceptance for Genetic Hearing Loss regeneron.com ↗
2026-04-23 Regeneron Pharmaceuticals Regulatory Otarmeni™ (lunsotogene parvec-cwha) Approved by FDA as First and Only Gene Therapy for Genetic Hearing Loss; Regeneron to Provide Otarmeni for Free in the U.S. regeneron.com ↗
Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) today announced the U.S. Food and Drug Administration (FDA) has granted accelerated approval for Otarmeni™ (lunsotogene parvec-cwha), the first gene therapy and second new molecular entity approved under the FDA Commissioner’s National Priority Voucher program.
2025-10-12 Regeneron Pharmaceuticals Results DB-OTO Results in the New England Journal of Medicine Showcase Dramatic and Sustained Improvements in Hearing and Speech Perception in Children with Profound Genetic Hearing Loss regeneron.com ↗
These latest results from the pivotal CHORD trial show 11 out of 12 participants have experienced clinically meaningful hearing improvements, including 3 who achieved normal hearing levels.
2025-02-24 Regeneron Pharmaceuticals Results Latest DB-OTO Results Demonstrate Clinically Meaningful Hearing Improvements in Nearly All Children with Profound Genetic Hearing Loss in CHORD Trial regeneron.com ↗
Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) today announced updated data for the investigational gene therapy DB-OTO from the Phase 1/2 CHORD trial in 12 children who have profound genetic hearing loss due to variants of the otoferlin (OTOF) gene.
2024-05-08 Regeneron Pharmaceuticals Results Latest DB-OTO Results Show Dramatically Improved Hearing to Normal Levels in a Child with Profound Genetic Deafness within 24 Weeks and Initial Hearing Improvements in a Second Child at 6 Weeks regeneron.com ↗
2024-04-22 Regeneron Pharmaceuticals Results Regeneron to Highlight Advances in Genetic Medicine Research at American Society of Gene and Cell Therapy (ASGCT) regeneron.com ↗
The company will also present updated data from the Phase 1/2 CHORD trial investigating DB-OTO in children with profound genetic hearing loss due to mutations of the otoferlin gene.
2023-10-26 Regeneron Pharmaceuticals Results Regeneron Shares Preliminary Results Showing Gene Therapy Improves Auditory Responses in Child with Profound Genetic Hearing Loss regeneron.com ↗
Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) today announced preliminary, positive safety and efficacy results from the first patient (<2 years of age) dosed in the Phase 1/2 CHORD trial investigating otoferlin gene therapy (DB-OTO) in children with profound genetic hearing loss due to mutations of the otoferlin gene.

Evidence & citations 4 cited values

Every value below carries the sentence it was read from. 2 sources stand behind the page.

FieldValueCited text
Known as DB-OTO ClinicalTrials.gov intervention name — accepted as the source's own label NCT05788536 ↗
Modality Gene therapy (AAV / viral vector) “DB-OTO is a dual adeno-associated virus 1 gene therapy” PMID 41085057 ↗ Oct 2025
Route Other “received an intracochlear infusion of DB-OTO” PMID 41085057 ↗ Oct 2025
Target OTOF “delivers human OTOF complementary DNA” PMID 41085057 ↗ Oct 2025