Clinical trialNCT04900519UnknownPhase 1Interventional

Study of the Safety and Efficacy of STI-6643 in Subjects With Advanced Solid Tumors

SponsorSorrento Therapeutics, Inc.Enrollment100Refractory TumorRelapsed Solid NeoplasmSolid Tumor

View the registry record on ClinicalTrials.gov

Summary

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Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Mike Royal, MD
Sorrento Therapeutics, Inc.
Study Director
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

5 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

University of California, San Diego
San Diego, California, United States
Not, yet, recruiting
Sanford Health
Sioux Falls, South Dakota, United States
Steven Powell, MD
Recruiting
Next Oncology - Austin
Austin, Texas, United States
Completed
Mary Crowley Cancer Research
Dallas, Texas, United States
Reva Schneider, MD
Recruiting
Virginia Cancer Specialists
Fairfax, Virginia, United States
Alexander Spira, MD
Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

STI-6643

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 24 Nov 2021
Primary completion: 31 Dec 2024
Completion: 31 Mar 2025
Last update posted: 17 Jan 2023
Registered enrollment: 100
Registry id: NCT04900519

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.