Clinical Trials

Available clinical repository data for PF-04217903 includes a clinical trial sponsored by Pfizer to investigate the safety, pharmacokinetics, and pharmacodynamics of the compound in patients with advanced solid neoplasms. Although patient enrollment was initiated for this Phase 1 study, recruitment was ultimately terminated. Consequently, there are currently no active or recruiting clinical investigations documented for this small-molecule inhibitor.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT00706355 Terminated
Neoplasms
Pfizer
2008-08 Phase 1

(data from https://clinicaltrials.gov, updated on 2024-05-22)

Check the PF-04217903 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Compliance for Clinical Use

Mechanism and Biochemical Profile

PF-04217903 selectively binds to the ATP-binding site of the MET tyrosine kinase (c-Met), thereby blocking receptor autophosphorylation and suppressing downstream oncogenic signaling cascades required for cellular survival and proliferation. By inhibiting c-Met-driven biochemical pathways, this small molecule reduces tumor cell viability, providing therapeutic relevance for the management of advanced neoplasms investigated in early-phase clinical studies.

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.