Drugs / AR-42
last change Aug 2025 re-read 2 minutes ago

AR-42

also known as REC-2282 · (S)-HDAC 42 · NSC 731438 · Osu-hdac 42

Small molecule

Developed for
NF2-related schwannomatosis · plasma cell myeloma · acoustic neuroma · acute myeloid leukemia with 11q23 abnormalities · acute myeloid leukemia with abnormal bone marrow eosinophils inv(16)(p13q22) or t(16;16)(p13;q22) · acute myeloid leukemia with t(8;21)(q22;q22) translocation · acute promyelocytic leukemia · adult T-cell leukemia/lymphoma
+25 more · anaplastic large cell lymphoma · angioimmunoblastic T-cell lymphoma · Burkitt lymphoma · childhood acute myeloid leukemia · chronic lymphocytic leukemia/small lymphocytic lymphoma · extranodal nasal NK/T cell lymphoma · grade III lymphomatoid granulomatosis · hepatosplenic T-cell lymphoma · Hodgkins lymphoma · intraocular lymphoma · large-cell immunoblastic lymphoma · MALT lymphoma · mantle cell lymphoma · meningioma · metastatic neoplasm · mycosis fungoides and variants · nodal marginal zone B-cell lymphoma · peripheral T-cell lymphoma, not otherwise specified · post-transplant lymphoproliferative disease · primary cutaneous B-cell lymphoma · prolymphocytic leukemia · renal cell carcinoma · soft tissue sarcoma · testicular lymphoma · Waldenstrom macroglobulinemia
Investigated by
National Cancer Institute (NCI) · Alison Walker · Amir Mortazavi · Arno Therapeutics · Celgene Corporation · Johns Hopkins University
+8 more · Massachusetts Eye and Ear Infirmary · Mayo Clinic · Nationwide Children's Hospital · Ohio State University · Ohio State University Comprehensive Cancer Center · Recursion Pharmaceuticals Inc. · Stanford University · Virginia Commonwealth University

Trials 6 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT02282917 Dec 2015 → May 2017 NF2-related schwannomatosis, acoustic neuroma, meningioma Massachusetts Eye and Ear Infirmary Terminated No outcome recorded
Phase 14 trials
Phase 1 NCT02795819 Jul → Nov 2016 metastatic neoplasm, renal cell carcinoma, soft tissue sarcoma Virginia Commonwealth University Terminated No outcome recorded
Phase 1 NCT02569320 May 2016 → Nov 2020 plasma cell myeloma Ohio State University Comprehensive Cancer Center Completed No outcome recorded
Phase 1 NCT01798901 Sep 2013 → Feb 2015 acute myeloid leukemia with 11q23 abnormalities, acute myeloid leukemia with abnormal bone marrow eosinophils inv(16)(p13q22) or t(16;16)(p13;q22), acute myeloid leukemia with t(8;21)(q22;q22) translocation, acute promyelocytic leukemia +1 Alison Walker Completed No outcome recorded
Phase 1 NCT01129193 May 2010 → Jan 2017 Burkitt lymphoma, Hodgkins lymphoma, MALT lymphoma, Waldenstrom macroglobulinemia +18 Amir Mortazavi Completed No outcome recorded
Phase 2/31 trial
Phase 2/3 NCT05130866 Jun 2022 → Aug 2025 NF2-related schwannomatosis Recursion Pharmaceuticals Inc. Terminated No outcome recorded

Evidence & citations 8 cited values

Every value below carries the sentence it was read from. 10 sources stand behind the page.

FieldValueCited text
Known as AR-42 ClinicalTrials.gov intervention name — accepted as the source's own label NCT02569320
4

NCT01798901

NCT02282917

NCT01129193

NCT02795819

Known as (S)-HDAC 42 ChEMBL registry synonym — accepted as the source's own label CHEMBL191482
Known as NSC 731438 “Preclinical Pharmacokinetics Study of R- and S-Enantiomers of the Histone Deacetylase Inhibitor, AR-42 (NSC 731438), in Rodents.” PMID 26943915 Mar 2016
Known as Osu-hdac 42 ChEMBL registry synonym — accepted as the source's own label CHEMBL191482
Known as REC-2282 “The Technology Commercialization Office has licensed AR-42 (now called REC‐2282) to Recursion Pharmaceuticals using the institution's standard terms, conditions, and approval...” PMID 34667843 Aug 2021
2

“The Ohio State University (OSU) holds the patent on the investigational drug AR-42 (US 10/597,022). The Technology Commercialization Office has licensed AR-42 (now called...” PMID 33492438 Jan 2021

NCT05130866

Action Inhibit “AR-42 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.” NCT01129193
Modality Small molecule “AR-42 is a small moleculeNCT02282917
Route Oral “Patients receive oral AR-42 three times weekly on days 1-21.” NCT01129193