Drugs / Pacritinib
last change Aug 2026 re-read 2 minutes ago

Pacritinib

Small molecule targets ACVR1, AXL, CSF1R, FLT3, IRAK1, JAK2 via inhibition

Developed for
myelofibrosis · primary myelofibrosis · chronic myelomonocytic leukemia · myelodysplastic syndrome · myeloproliferative neoplasm · acute myeloid leukemia · essential thrombocythemia · lymphoproliferative syndrome
+30 more · mantle cell lymphoma · acquired polycythemia vera · Hodgkins lymphoma · leukemia · prostate cancer · VEXAS syndrome · Waldenstrom macroglobulinemia · acute graft versus host disease · acute lymphoblastic leukemia · atypical chronic myeloid leukemia, BCR-ABL1 negative · B-cell chronic lymphocytic leukemia · B-cell non-Hodgkin lymphoma · breast cancer · chronic graft versus host disease · chronic lymphocytic leukemia/small lymphocytic lymphoma · chronic myeloid leukemia · colorectal cancer · COVID-19 · indolent B-cell non-Hodgkin lymphoma · juvenile myelomonocytic leukemia · KSHV inflammatory cytokine syndrome · lung adenocarcinoma · multicentric Castleman disease · myelodysplastic/myeloproliferative neoplasm · myeloproliferative neoplasm, unclassifiable · non-small cell lung carcinoma · peripheral T-cell lymphoma, not otherwise specified · primary cutaneous T-cell lymphoma · T-cell and NK-cell neoplasm · therapy related acute myeloid leukemia and myelodysplastic syndrome
Investigated by
CTI BioPharma · National Cancer Institute (NCI) · S*BIO · Swedish Orphan Biovitrum · Covance · Sobi, Inc.
+34 more · Washington University School of Medicine · M.D. Anderson Cancer Center · University of Michigan Rogel Cancer Center · H. Lee Moffitt Cancer Center and Research Institute · Medical College of Wisconsin · PPD Development, LP · PSI CRO · SGS S.A. · University of Washington · Baxalta now part of Shire · Bhavana Bhatnagar · City of Hope Medical Center · Douglas Tremblay · Dutch Cancer Society · Fox Chase Cancer Center · Grupo Español de Enfermedades Mieloproliferativas Crónicas PH Negativas · HOVON Foundation · Hoosier Cancer Research Network · John Mascarenhas · Karyopharm Therapeutics Inc · MDS/MPN International Working Group (UK Sponsor) · MFAR Clinical Research S.L. · National Heart, Lung, and Blood Institute (NHLBI) · National Institutes of Health (NIH) · National University Hospital, Singapore · OHSU Knight Cancer Institute · Oregon Health and Science University · QPS-Qualitix · Roswell Park Cancer Institute · Shayna Sarosiek, MD · The University of Texas Health Science Center at San Antonio · Theradex · Thomas Jefferson University · University of Kansas Medical Center

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Approved US (FDA) VONJO 2022-02-28 fda.gov

Trials 53 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT06414681 Aug 2025 → Dec 2026 expected myelofibrosis University of Kansas Medical Center Recruiting No outcome recorded
Phase 118 trials
Phase 1 NCT07679334 Aug 2026 → Aug 2028 expected myeloproliferative neoplasm Roswell Park Cancer Institute Not yet recruiting No outcome recorded
Phase 1 NCT06675123 Jun 2026 → Mar 2028 expected mantle cell lymphoma City of Hope Medical Center Recruiting No outcome recorded
Phase 1 NCT06538181 Feb 2025 → Mar 2027 expected VEXAS syndrome Washington University School of Medicine Recruiting No outcome recorded
Phase 1 NCT06218628 Apr 2024 → Aug 2029 expected acquired polycythemia vera, chronic myelomonocytic leukemia, essential thrombocythemia, myelofibrosis +1 Fox Chase Cancer Center Recruiting No outcome recorded
Phase 1 NCT05657613 Jan → Jun 2023 CTI BioPharma Completed No outcome recorded
Phase 1 NCT05552183 Dec 2022 → Jun 2024 CTI BioPharma Completed No outcome recorded
Phase 1 NCT03601819 May 2019 → Mar 2020 B-cell chronic lymphocytic leukemia, Waldenstrom macroglobulinemia, lymphoproliferative syndrome, mantle cell lymphoma +2 University of Michigan Rogel Cancer Center Terminated No outcome recorded
Phase 1 NCT02564536 Jun 2017 → Jun 2020 atypical chronic myeloid leukemia, BCR-ABL1 negative, juvenile myelomonocytic leukemia, myelodysplastic syndrome, myelofibrosis Washington University School of Medicine Withdrawn No outcome recorded
Phase 1 NCT02323607 Jan 2016 → Jul 2018 therapy related acute myeloid leukemia and myelodysplastic syndrome Bhavana Bhatnagar Completed No outcome recorded
Phase 1 NCT02342353 May 2015 → Feb 2018 non-small cell lung carcinoma Washington University School of Medicine Terminated No outcome recorded
Phase 1/210 trials
Phase 1/2 NCT06303193 Jul 2026 → Jan 2030 expected myelodysplastic syndrome National Cancer Institute (NCI) Recruiting No outcome recorded
Phase 1/2 NCT07387354 Jul 2026 → Jan 2027 expected myelodysplastic syndrome, myeloproliferative neoplasm Thomas Jefferson University Not yet recruiting No outcome recorded
Phase 1/2 NCT06516887 Dec 2024 → May 2026 lung adenocarcinoma The University of Texas Health Science Center at San Antonio Terminated No outcome recorded
Phase 1/2 NCT06159491 Sep 2024 → Jul 2027 expected chronic myelomonocytic leukemia Douglas Tremblay Recruiting No outcome recorded
Phase 1/2 NCT05531786 Mar 2023 → Jul 2027 expected chronic graft versus host disease National Cancer Institute (NCI) Recruiting No outcome recorded
Phase 1/2 NCT04520269 Jul 2020 → Jul 2026 overdue breast cancer National University Hospital, Singapore Active not recruiting No outcome recorded
Phase 1/2 NCT02891603 Jun 2017 → Jan 2022 acute graft versus host disease H. Lee Moffitt Cancer Center and Research Institute Completed No outcome recorded
Phase 1/2 NCT02677948 Oct 2016 → Oct 2018 chronic lymphocytic leukemia/small lymphocytic lymphoma University of Michigan Rogel Cancer Center Withdrawn No outcome recorded
Phase 1/2 NCT00745550 Aug 2008 → Jan 2012 essential thrombocythemia, myelofibrosis, polycythemia S*BIO Completed No outcome recorded
Phase 1/2 NCT00719836 Aug 2008 → Jan 2012 acute myeloid leukemia, chronic myeloid leukemia, chronic myelomonocytic leukemia, myelodysplastic syndrome +1 S*BIO Completed No outcome recorded
Phase 221 trials
Phase 2 NCT07226713 Jul 2026 → Mar 2029 expected prostate cancer Medical College of Wisconsin Not yet recruiting No outcome recorded
Phase 2 NCT07447817 May 2026 → May 2030 expected myelofibrosis John Mascarenhas Not yet recruiting No outcome recorded
Phase 2 NCT07394153 Apr 2026 → Dec 2027 expected myelofibrosis Grupo Español de Enfermedades Mieloproliferativas Crónicas PH Negativas Recruiting No outcome recorded
Phase 2 NCT07148947 Mar 2026 → Dec 2028 expected myeloproliferative neoplasm University of Washington Recruiting No outcome recorded
Phase 2 NCT07033598 Jan 2026 → Jul 2028 expected chronic myelomonocytic leukemia Theradex Recruiting No outcome recorded
Phase 2 NCT06986174 Nov 2025 → Oct 2028 expected Waldenstrom macroglobulinemia, lymphoproliferative syndrome Shayna Sarosiek, MD Recruiting No outcome recorded
Phase 2 NCT06782373 May 2025 → Dec 2026 expected VEXAS syndrome Swedish Orphan Biovitrum Recruiting No outcome recorded
Phase 2 NCT06052618 Mar 2025 → Jan 2033 expected KSHV inflammatory cytokine syndrome, multicentric Castleman disease National Cancer Institute (NCI) Recruiting No outcome recorded
Phase 2 NCT04858256 Mar 2023 → Nov 2027 expected T-cell and NK-cell neoplasm, lymphoproliferative syndrome University of Michigan Rogel Cancer Center Recruiting No outcome recorded
Phase 2 NCT04635059 Jun 2021 → Nov 2023 prostate cancer Medical College of Wisconsin Terminated No outcome recorded
Phase 33 trials
Phase 3 NCT03165734 Jun 2017 → Oct 2026 expected myelofibrosis, primary myelofibrosis Swedish Orphan Biovitrum Active not recruiting No outcome recorded
Phase 3 NCT02055781 Feb 2014 → Apr 2016 myelofibrosis, primary myelofibrosis CTI BioPharma Terminated No outcome recorded
Phase 3 NCT01773187 Jan 2013 → Jan 2015 myelofibrosis, primary myelofibrosis CTI BioPharma Terminated No outcome recorded
Also used as a comparator or background therapy in 2 trials
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 2 NCT05980806 Background Apr 2024 → Jun 2027 expected myelofibrosis, thrombocytopenia Karyopharm Therapeutics Inc Recruiting No outcome recorded
Phase 2 NCT02532010 Comparator Jun 2015 → Feb 2016 acute myeloid leukemia Weill Medical College of Cornell University Terminated No outcome recorded

Evidence & citations 13 cited values

Every value below carries the sentence it was read from. 57 sources stand behind the page.

FieldValueCited text
Known as Pacritinib “Study to Assess the Relative Bioavailability of Pacritinib Following Oral Administration as Capsule and Solution Formulations in Healthy Subjects” NCT02808455
51

Pacritinib (SB1518) is a Janus kinase 2 (JAK2), JAK2(V617F), and Fms-like tyrosine kinase 3 inhibitor that does not inhibit JAK1.” PMID 25762180 Mar 2015

Pacritinib (SB1518) is a highly selective kinase inhibitor with specificity for JAK2, FLT3, IRAK1, and CFS1R.” PMID 27931243 Dec 2016

NCT02765724

NCT03645824

NCT06052618

NCT02807207

NCT02807051

NCT04282187

NCT06516887

NCT02323607

NCT02410551

NCT06159491

NCT02564536

NCT06782373

NCT01620216

NCT04404361

NCT02469415

NCT07679334

NCT02803762

NCT05980806

NCT04635059

NCT07226713

NCT06675123

NCT04520269

NCT07447817

NCT02677948

NCT05531786

NCT06414681

NCT06986174

NCT02891603

NCT07387354

NCT06538181

NCT02807077

NCT04884191

NCT07148947

NCT07033598

NCT02807116

NCT05552183

NCT04858256

NCT06218628

NCT02532010

NCT02277093

NCT07394153

NCT03601819

NCT02584777

NCT06303193

NCT05657613

NCT02055781

NCT02342353

NCT03165734

NCT01773187

Known as ONX-0803 ChEMBL registry synonym — accepted as the source's own label CHEMBL2035187
Known as PAC Pacritinib Pacritinib (PAC) will be given orally, 200 mg twice per day starting at C2D4 and administered continuously (Subsequent cycles start on Day 1 of the Cycle).” NCT06414681
Known as PACRITINIB CITRATE ChEMBL registry synonym — accepted as the source's own label CHEMBL2035187
Known as SB-1518 CITRATE ChEMBL registry synonym — accepted as the source's own label CHEMBL2035187
Known as SB1518 “Pacritinib (SB1518) is a Janus kinase 2 (JAK2), JAK2(V617F), and Fms-like tyrosine kinase 3 inhibitor that does not inhibit JAK1.” PMID 25762180 Mar 2015
4

“Pacritinib (SB1518) is a highly selective kinase inhibitor with specificity for JAK2, FLT3, IRAK1, and CFS1R.” PMID 27931243 Dec 2016

NCT00741871

NCT01263899

NCT01436084

Known as Vonjo ChEMBL registry synonym — accepted as the source's own label CHEMBL2035187
Action Inhibit “Pacritinib (SB1518) is a highly selective kinase inhibitor with specificity for JAK2, FLT3, IRAK1, and CFS1R.” PMID 27931243 Dec 2016
Modality Small molecule “Pacritinib is an oral kinase inhibitor” NCT07387354
Route Oral “SB1518 taken orally daily for 28 consecutive days in a 28-day cycle” NCT00719836
Target FLT3 “Pacritinib (SB1518) is a highly selective kinase inhibitor with specificity for JAK2, FLT3, IRAK1, and CFS1R.” PMID 27931243 Dec 2016
Target IRAK1 “Pacritinib (SB1518) is a highly selective kinase inhibitor with specificity for JAK2, FLT3, IRAK1, and CFS1R.” PMID 27931243 Dec 2016
Target JAK2 “Pacritinib (SB1518) is a highly selective kinase inhibitor with specificity for JAK2, FLT3, IRAK1, and CFS1R.” PMID 27931243 Dec 2016