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Study details
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A Study of ETX-19477 in Patients With Advanced Solid Malignancies

858 Therapeutics, Inc.
NCT IDNCT06395519ClinicalTrials.gov data as of Apr 2026
Phase

Phase 1/2

Target enrollment

120

Study length

about 2.6 years

Ages

18+

Locations

14 sites in AZ, CT, FL +10

About this study

Researchers are testing a new drug called ETX-19477 to see if it's safe and effective for people with advanced solid cancers. The trial will involve adults, and the expected duration is 962 days.

Based on ClinicalTrials.gov records.

What participants do

  • 1.Take ETX-19477
PhasePhase 1/Phase 2
Primary goalTo characterize the safety and tolerability of ETX-19477, the maximum tolerated dose (MTD) and/or RP2D of ETX-19477

Participation effort

Estimated from trial records. Details can vary by site.

Time + visits
Low15%
Logistics
Moderate50%

Logistics difficulty varies by site location and availability.

Trial highlights

Treatment details

Auto-extracted from trial records to preview treatments and outcomes.

Endpoints

Primary: To characterize the safety and tolerability of ETX-19477, the maximum tolerated dose (MTD) and/or RP2D of ETX-19477

Secondary: To assess the preliminary anti-tumor activity of ETX-19477 in participants by measuring disease control rate (DCR) using RECIST v1.1, To assess the preliminary anti-tumor activity of ETX-19477 in participants by measuring duration of response (DOR) using RECIST v1.1, To assess the preliminary anti-tumor activity of ETX-19477 in participants by measuring objective response rate (ORR) using RECIST v1.1, To characterize the pharmacokinetic (PK) profile of ETX-19477 by measuring elimination half-life (t1/2), To characterize the pharmacokinetic (PK) profile of ETX-19477 by measuring maximum blood concentration (tmax), To characterize the pharmacokinetic (PK) profile of ETX-19477 by measuring maximum plasma concentration (Cmax), To further characterize the pharmacokinetic (PK) profile of ETX-19477 by the Area Under the Blood Concentration-Time Curve (AUC0-t, AUC0-inf), Clearance (CL), Volume of Distribution (Vd)

Body systems

Oncology