selenious acid

Small moleculeapprovedFast Track FDA

Approved

Apr 30, 2019

Selenous acid is the chemical compound with the formula H2SeO3. Structurally, it is more accurately described by O=Se(OH)2. It is the principal oxoacid of selenium; the other being selenic acid. — Wikipedia

Clinical trial activity

4 trials · 4 clinical orgs · 13 marketing orgs

Phase 1
0
Phase 2
2
Phase 3
1
Phase 4
2

Earliest trial started Dec 1, 2010 (NCT01141556)

Timeline

2010s

  1. Jan 1, 2010

    Earliest Phase 3 Sponsor(trial)

  2. Apr 30, 2019

    American Regent, Inc. — Earliest FDA Approval

  3. Apr 30, 2019

    Sankyo — Marketing Organization

  4. Apr 30, 2019

    American Regent, Inc. — NDA Organization

  5. Apr 30, 2019

    Daiichi Sankyo — NDA Secondary Org

2020s

  1. Jan 1, 2021

    Earliest Phase 2 Sponsor(trial)

  2. Feb 10, 2025

    Fresenius — Marketing Organization

  3. Feb 20, 2025

    Sun Pharmaceuticals — Marketing Organization

  4. Apr 28, 2025

    STERISCIENCE — Marketing Organization

  5. Jun 11, 2025

    Aspiro — Marketing Organization

  6. Jul 8, 2025

    Gland Pharma Ltd — Marketing Organization

  7. Jul 21, 2025

    Cipla — Marketing Organization

  8. Dec 31, 2025

    Apicore — Marketing Organization

  9. Dec 31, 2025

    STIRA — Marketing Organization

  10. Jan 7, 2026

    BPI — Marketing Organization

  11. Feb 3, 2026

    KINDOS — Marketing Organization

Indications

Mechanism of action

  • Unspecified targetOTHER

    Supplement

    Nutritional supplement.

  • Unspecified targetAntioxidant

    antioxidant

Combination products

Approval history

  • approvedPriority reviewFast trackApr 30, 2019

Chemistry & pharmacology

Loading structure…

SMILES

O=[Se](O)O
Mol. weight
128.97 g/mol
Chirality
Achiral Molecule
Inorganic
Yes
Polymer
No
Delivery
Parenteral
Availability
Prescription Only

Oral

No

Parenteral

Yes

Topical

No

Sources

Also known as

  • selenase
  • selenious acid
  • selenious acid
  • selenious acid
  • selenous acid
  • selenous acid

Clinical trials

NCT IDPhaseStart dateSponsor(s)
NCT05661682Phase 4Sep 30, 2023American Regent, Inc.
NCT05677126Phase 4Sep 30, 2023American Regent, Inc.
NCT04869579Phase 2Aug 15, 2021CHRISTUS Health, Pharco Pharmaceuticals
NCT01141556Phase 3Dec 1, 2010University of Bern
Showing 4 of 4 trials
Page 1 / 1

Organizations

Research & Development (4)

OrganizationOrg typeTrialsAs lead sponsorPhasesEarliest year
American Regent, Inc.For profit2212023
CHRISTUS HealthAcademic/Hospital1112021
Pharco PharmaceuticalsFor profit1012021
University of BernAcademic/Hospital1112010
4 organizations
Page 1 / 1

Marketing (13)

OrganizationOrg typeRelationshipDate
American Regent, Inc.For profitNDAApr 30, 2019
ApicoreFor profitMKTGDec 31, 2025
AspiroFor profitMKTGJun 11, 2025
BPIFor profitMKTGJan 7, 2026
CiplaFor profitMKTGJul 21, 2025
Daiichi SankyoFor profitNDA2Apr 30, 2019
FreseniusFor profitMKTGFeb 10, 2025
Gland Pharma LtdFor profitMKTGJul 8, 2025
KINDOSFor profitMKTGFeb 3, 2026
STERISCIENCEFor profitMKTGApr 28, 2025
STIRAFor profitMKTGDec 31, 2025
SankyoFor profitMKTGApr 30, 2019
Sun PharmaceuticalsFor profitMKTGFeb 20, 2025