Clinical Trials

Numerous clinical trials evaluate oral and intravenous rigosertib across oncological and dermatological indications—including myelodysplastic syndromes, squamous cell carcinomas, advanced cutaneous melanoma, and recessive dystrophic epidermolysis bullosa—spanning Early Phase 1 to Phase 3 studies as monotherapy or combined with chemotherapy. Sponsored by pharmaceutical entities such as Traws Pharma, Inc. alongside academic medical centers like Thomas Jefferson University, M.D. Anderson Cancer Center, and Mount Sinai, these protocols encompass active, recruiting, completed, terminated, and withdrawn statuses.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT05764395 ACTIVE_NOT_RECRUITING
Clinical Stage III Cutaneous Melanoma AJCC v8; Clinical Stage IV Cutaneous Melanoma AJCC v8; Metastatic Melanoma; Refractory Melanoma; Unresectable Melanoma
Vanderbilt-Ingram Cancer Center
2023-05-09 PHASE2
NCT03786237 COMPLETED
Epidermolysis Bullosa Dystrophica; Squamous Cell Carcinoma
Prof. Johann Bauer
2021-04-12 PHASE1; PHASE2
NCT04177498 COMPLETED
Recessive Dystrophic Epidermolysis Bullosa
Thomas Jefferson University
2021-08-24 EARLY_PHASE1
NCT04263090 COMPLETED
Non-small Cell Lung Cancer; Adenocarcinoma; Stage IV
Icahn School of Medicine at Mount Sinai
2020-06-29 PHASE1; PHASE2
NCT04177498 Recruiting
Recessive Dystrophic Epidermolysis Bullosa
Thomas Jefferson University|Traws Pharma Inc.
2021-08-24 Early Phase 1
NCT01926587 COMPLETED
Myelodysplastic Syndrome; Acute Myeloid Leukemia; Chronic Myelomonocytic Leukemia
Traws Pharma, Inc.
2013-08 PHASE1; PHASE2
NCT01904682 COMPLETED
Myelodysplastic Syndromes
Traws Pharma, Inc.
2013-07 PHASE2
NCT02562443 TERMINATED
Myelodysplastic Syndrome; MDS; Refractory Anemia With Excess Blasts; RAEB
Traws Pharma, Inc.
2015-12-02 PHASE3
NCT02730884 TERMINATED
Leukemia; Myelofibrosis; Anemia; Splenomegaly
M.D. Anderson Cancer Center
2017-08-16 PHASE2
NCT02075034 WITHDRAWN
Myelodysplastic Syndrome
Traws Pharma, Inc.
2014-05 PHASE1
NCT01241500 COMPLETED
Myelodysplastic Syndromes; MDS; RAEB; Chronic Myelomonocytic Leukemia
Traws Pharma, Inc.
2010-11 PHASE3
NCT01928537 COMPLETED
Myelodysplastic Syndromes; Refractory Anemia With Excess Blasts; Chronic Myelomonocytic Leukemia; Cytopenia
Traws Pharma, Inc.
2013-08 PHASE3
NCT01168011 COMPLETED
Solid Tumor
Traws Pharma, Inc.
2010-07 PHASE1
NCT01360853 COMPLETED
Metastatic Pancreatic Adenocarcinoma
Traws Pharma, Inc.
2011-05 PHASE3
NCT01584531 COMPLETED
Myelodysplastic Syndrome; MDS; Trisomy 8
Traws Pharma, Inc.
2012-05 PHASE2
NCT01807546 COMPLETED
Head and Neck Squamous Cell Carcinoma; Anal Squamous Cell Carcinoma; Lung Squamous Cell Carcinoma; Cervical Squamous Cell Carcinoma; Esophageal Squamous Cell Carcinoma; Skin Squamous Cell Carcinoma; Penile Squamous Cell Carcinoma
Traws Pharma, Inc.
2013-03 PHASE2
NCT02030639 COMPLETED
Healthy
Traws Pharma, Inc.
2014-01 PHASE1
NCT00854646 COMPLETED
Acute Myelocytic Leukemia; Acute Lymphocytic Leukemia; Chronic Myelocytic Leukemia; Chronic Lymphocytic Leukemia; Myelodysplastic Syndromes
Traws Pharma, Inc.
2008-10 PHASE1
NCT01048619 COMPLETED
Myelodysplastic Syndrome
Traws Pharma, Inc.
2009-12 PHASE1
NCT02107235 COMPLETED
Head and Neck Neoplasms; Carcinoma, Squamous Cell
Traws Pharma, Inc.
2014-01 PHASE1
NCT02075034 Withdrawn
Myelodysplastic Syndrome
Traws Pharma Inc.
2014-05 Phase 1
NCT02030639 Completed
Healthy
Traws Pharma Inc.
2014-01 Phase 1
NCT01167166 COMPLETED
Acute Myelocytic Leukemia; Acute Lymphocytic Leukemia; Myeloproliferative Disease; Chronic Myeloid Leukemia
Traws Pharma, Inc.
2010-07 PHASE1; PHASE2
NCT00906334 COMPLETED
Myelodysplastic Syndrome
Traws Pharma, Inc.
2009-05 PHASE2
NCT00854945 COMPLETED
Myelodysplastic Syndrome; Acute Myeloid Leukemia
Traws Pharma, Inc.
2009-01 PHASE1; PHASE2
NCT01928537 Completed
Myelodysplastic Syndromes|Refractory Anemia With Excess Blasts|Chronic Myelomonocytic Leukemia|Cytopenia
Traws Pharma Inc.
2013-08 Phase 3
NCT01807546 Completed
Head and Neck Squamous Cell Carcinoma|Anal Squamous Cell Carcinoma|Lung Squamous Cell Carcinoma|Cervical Squamous Cell Carcinoma|Esophageal Squamous Cell Carcinoma|Skin Squamous Cell Carcinoma|Penile Squamous Cell Carcinoma
Traws Pharma Inc.
2013-03 Phase 2
NCT00861510 COMPLETED
Lymphoma, Mantle-cell; Leukemia, Lymphocytic, Chronic, B-Cell; Leukemia, Hairy Cell; Waldenstrom Macroglobulinemia; Multiple Myeloma
National Heart, Lung, and Blood Institute (NHLBI)
2009-03-05 PHASE1
NCT00533416 COMPLETED
Myelodysplastic Syndrome (MDS)
National Heart, Lung, and Blood Institute (NHLBI)
2007-09-14 PHASE1
NCT01125891 COMPLETED
Malignant Neoplasmas; Solid Tumors
Traws Pharma, Inc.
2009-01 PHASE1
NCT00856791 COMPLETED
Ovarian Cancer
Traws Pharma, Inc.
2009-03 PHASE2
NCT00861783 COMPLETED
Hepatoma; Advanced Solid Tumor
Traws Pharma, Inc.
2008-06 PHASE1
NCT01165905 COMPLETED
Solid Tumor
Traws Pharma, Inc.
2010-01 PHASE1
NCT00861328 COMPLETED
Advanced Solid Tumors
Traws Pharma, Inc.
2008-02 PHASE1
NCT01538537 COMPLETED
Advanced Cancer; Solid Tumors; Cancer; Neoplasms
Traws Pharma, Inc.
2006-08 PHASE1
NCT01538563 COMPLETED
Solid Tumors; Advanced Cancer; Cancer; Neoplasms
Traws Pharma, Inc.
2006-06 PHASE1
NCT01168011 Completed
Solid Tumor
Traws Pharma Inc.
2010-07 Phase 1
NCT00867061 WITHDRAWN
Myelodysplastic Syndrome
Traws Pharma, Inc.
2009-03 PHASE1; PHASE2

(data from https://clinicaltrials.gov, updated on 2026-04-27)

Check the Rigosertib Sodium (ON-01910) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Compliance for Clinical Use

Mechanism and Biochemical Profile

Rigosertib acts as a non-ATP-competitive inhibitor that selectively binds the substrate-binding site of Polo-like kinase 1 and suppresses the downstream PI3K/Akt signaling pathway, thereby inducing mitotic arrest with spindle abnormalities, activating oxidative stress pathways, and triggering apoptotic cell death. This targeted disruption of cell cycle progression and survival cascades underpins its clinical evaluation in suppressing tumor proliferation across hematologic malignancies, such as myelodysplastic syndromes, and solid tumors including squamous cell carcinomas.

Appendix RUO and cGMP Quality Standards

Quality Dimension RUO (Research Use Only) cGMP (Current Good Manufacturing Practice)
Clinical Applicability Prohibited in human clinical trials or medical diagnostics. Mandatory for human clinical trials (Phase I–III) and therapies.
Regulatory Status Non-regulated grade; exempt from drug manufacturing laws. Legally enforced by health authorities (e.g., FDA, EMA, NMPA).
Facility Environment Unclassified analytical or research laboratories. Validated Cleanrooms (ISO Class 5–8) with continuous monitoring.
Quality Control Basic purity and activity testing. Rigorous safety release testing (Sterility, Endotoxin, Mycoplasma).
Process Validation Basic equipment calibration; no process validation required. Full qualification (IQ/OQ/PQ) and complete batch records.
Quality Assurance Vendor self-declared without required formal QMS. Mandatory QA/QC unit, Change Control, CAPA, and vendor audits.
Regulatory Impact High risk of IND rejection if used as a critical raw material. Required for IND/NDA filings, supported by Drug Master Files (DMF).

Footnotes

Regulatory Note: Governed by FDA (21 CFR Parts 210/211/312), EMA (EudraLex Vol 4), ICH Guidelines (E6/Q7/Q9/Q10), and compendial standards (USP <71>/<85>/<1043>).

Note: Technical data last updated: Sep 1, 2026.