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Study identifier: NCT06541262 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Silmitasertib (CX-4945) in Combination With Chemotherapy for Relapsed Refractory Solid Tumors

Condition: Neuroblastoma · Ewing Sarcoma · Osteosarcoma  ·  Sponsor: Milton S. Hershey Medical Center

PhasePhase 1/Phase 2
Planned participants104
Who can joinAll sexes, N/A to 30 Years
Healthy volunteersNo

About this study

The purpose of this study is to evaluate the investigational drug, silmitasertib (a pill taken by mouth), in combination with FDA approved drugs for solid tumors. An investigational drug is one that has not been approved by the U.S. Food \& Drug Administration (FDA), or any other regulatory authorities around the world for use alone or in combination with any drug, for the condition or illness it is being used to treat. The goals of this part of the study are: * Establish a recommended dose of silmitasertib in combination with chemotherapy * Test the safety and tolerability of silmitasertib in combination with chemotherapy in subjects with cancer * To determine the activity of study treatments chosen based on: * How each subject responds to the study treatment * How long a subject lives without their disease returning/progressing

This description comes directly from the study's public registry record.

Talk to the study team

BCC Enroll  ·  7175310003  ·  BCCEnroll@pennstatehealth.psu.edu

Always discuss trial participation with your own doctor first.

Locations (22)

University of Alabama/Children's of AlabamaBirmingham, Alabama, United StatesRecruiting
Phoenix Children's HospitalPhoenix, Arizona, United StatesRecruiting
UCSF Benioff Children's Hospital OaklandOakland, California, United StatesRecruiting
Rady Children's HospitalSan Diego, California, United StatesRecruiting
Connecticut Children's HospitalHartford, Connecticut, United StatesRecruiting
University of FloridaGainesville, Florida, United StatesRecruiting
Nicklaus Children's HospitalMiami, Florida, United StatesRecruiting
Arnold Palmer Hospital for ChildrenOrlando, Florida, United StatesRecruiting
All Children's Hospital Johns Hopkins MedicineSt. Petersburg, Florida, United StatesRecruiting
St. Joseph's Children's HospitalTampa, Florida, United StatesRecruiting
Kapiolani Medical Center for Women and ChildrenHonolulu, Hawaii, United StatesRecruiting
Norton Children's Research Institute/Affiliated with University of Louisville School of MedicineLouisville, Kentucky, United StatesRecruiting

+ 10 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT06541262