Clinical Trials

Multiple clinical trials evaluate DS-1001b for the targeted treatment of central nervous system malignancies, specifically investigating IDH1-mutated gliomas and chemotherapy- and radiotherapy-naive WHO Grade II gliomas. Sponsored by Daiichi Sankyo, these studies span Phase I safety evaluations to Phase II efficacy trials. Current recruitment statuses across these protocols include both completed studies and active, non-recruiting trials.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT04458272 ACTIVE_NOT_RECRUITING
WHO Grade II Glioma
Daiichi Sankyo Co., Ltd.
2020-07-08 PHASE2
NCT03030066 COMPLETED
Glioma
Daiichi Sankyo
2017-01-19 PHASE1
NCT04458272 Active not recruiting
WHO Grade II Glioma
Daiichi Sankyo Co. Ltd.|Daiichi Sankyo
2020-07-08 Phase 2
NCT03030066 Active not recruiting
Glioma
Daiichi Sankyo
2017-01-19 Not Applicable

(data from https://clinicaltrials.gov, updated on 2026-03-20)

Check the DS-1001b (DS 1001) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Compliance for Clinical Use

Mechanism and Biochemical Profile

DS-1001b selectively binds to and inhibits mutant isocitrate dehydrogenase 1 (IDH1 R132X), blocking the abnormal cellular accumulation of the oncometabolite 2-hydroxyglutarate to promote cell differentiation and suppress malignant growth. By penetrating the blood-brain barrier to attenuate mutant IDH1 biochemical activity, this targeted inhibitor provides direct therapeutic relevance for halting tumor progression in patients with IDH1-mutated WHO Grade II glioma.

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.