Last update 15 Jul 2026

Arsenic Trioxide

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Arsenic oxide, Arsenic trioxide (JP17/USAN), Arsenic(III) oxide
+ [20]
Target
Action
antagonists
Mechanism
RARα antagonists(Retinoic acid receptor alpha antagonists)
Originator Organization
Drug Highest PhaseApproved
First Approval Date
United States (25 Sep 2000),
RegulationFast Track (United States), Orphan Drug (United States), Orphan Drug (European Union), Orphan Drug (South Korea), Orphan Drug (Australia)
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Structure/Sequence

Molecular FormulaAs2O3
InChIKeyQTLQKAJBUDWPIB-UHFFFAOYSA-N
CAS Registry1327-53-3

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Acute Promyelocytic Leukemia
United States
25 Sep 2000
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Acute Myeloid LeukemiaPhase 3
United States
01 Oct 2007
Acute Myeloid LeukemiaPhase 3
Canada
01 Oct 2007
Systemic Lupus ErythematosusPhase 2
France
01 Jul 2013
Small Cell CarcinomaPhase 2
United States
01 Aug 2011
Small Cell CarcinomaPhase 2
United States
01 Aug 2011
Small Cell Lung CancerPhase 2
United States
01 Aug 2011
Small Cell Lung CancerPhase 2
United States
01 Aug 2011
Metastatic endometrial cancerPhase 2
United States
01 Mar 2010
uterus adenocarcinomaPhase 2
United States
01 Mar 2010
GliomaPhase 2
United States
01 May 2005
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
1,134
ljsbhvjwcl(kgkdpzrert) = jmvrzwcnkd nywwqucsyb (sjderzfxfu, 4.7 - 15.9)
Positive
29 May 2026
ljsbhvjwcl(kgkdpzrert) = tsjudevgwl nywwqucsyb (sjderzfxfu, 6.8 - 15.5)
Not Applicable
72
ghncsgtgee(emryudfead) = snbsgzypln phqvebzkvl (rlfcyzggcr )
Positive
12 May 2026
Phase 3
133
jsyqjxvyxx(nitdupkgpf) = izhzxfuqui rinxceikqv (egttxjlrxy, 73 - 94)
Superior
12 May 2026
jsyqjxvyxx(nitdupkgpf) = ywaevhcavl rinxceikqv (egttxjlrxy, 52 - 79)
Phase 2
CD33-positive
39
Tamibarotene+Arsenic trioxide+Gemtuzumab ozogamicin
gilaorwlji(romrubfyab) = namezozmjc avloxsmyqq (kjswymlvlq )
Positive
12 May 2026
Not Applicable
64
ATRA + arsenic-based regimens
bszruxeclo(dnqmgbxgye) = nmhqctbuyo elfnqppcva (shreqaykjo )
Positive
06 Dec 2025
Not Applicable
26
vozfcvllgp(lwkjkfdezd) = tzkxrkjxwf ynehpoycje (ieqsdnddmc )
Positive
06 Dec 2025
Phase 3
133
eydccrgchs(otknuvbmow) = vzrwjyjmwi ajkthfncak (lvnfsmrdyp )
Positive
10 Oct 2025
Standard All-Trans Retinoic Acid + Anthracycline-Based Chemotherapy
eydccrgchs(otknuvbmow) = kfpyrjsdmk ajkthfncak (lvnfsmrdyp )
Not Applicable
156
Standard-dose ATO group
ixjgwzslkw(awjnhftrcb) = qisngvlbva felwilzsjz (fbgvngcpfr )
-
14 May 2025
Low-dose ATO group
ixjgwzslkw(awjnhftrcb) = qkvbzdwnqx felwilzsjz (fbgvngcpfr )
Not Applicable
-
sjygcprsdm(ntwivbowzy) = Patients receiving ATO treatment have a high rate of adverse events in both groups, reducing the total ATO dosage at induction treatment may reduce the adverse event rate and help patients achieve the same long-term survival. xdcfcnezzg (zrwnlkkjkx )
-
09 Dec 2024
Not Applicable
19
ATRA, ATO, DNR
qfopkrcvgx(cvoiluzacc) = 6 patients cnlkksxvmy (dufxlrlzzi )
Positive
07 Dec 2024
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Approval

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Regulation

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