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Study identifier: NCT05270213 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Evaluation of RBS2418 in Subjects With Advanced, Metastatic Solid Tumors

Condition: Advanced Cancer  ·  Sponsor: Riboscience, LLC.

PhasePhase 1
Planned participants164
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

RBS2418 (investigational product) is a specific immune modulator, working through ectonucleotide pyrophosphatase/phosphodiesterase I (ENPP1), designed to lead to anti-tumor immunity by increasing endogenous 2'-3'-cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) and adenosine triphosphate (ATP levels) and reducing adenosine production in the tumors. RBS2418 has the potential to be an important therapeutic option for subjects both as monotherapy and in combination with other cancer treatments including monotherapy and in combination with other cancer treatments including immunotherapy or chemotherapy. This study is an open-label, multi-site Phase 1a/1b study of RBS2418, a selective ENPP1 inhibitor, in combination with pembrolizumab or other approved anticancer therapies or as a monotherapy in subjects with advanced unresectable, recurrent or metastatic tumors. The phase 1a (dose escalation phase) has been completed. The Phase 1b expansion phase of the study has been increased in size and scope.

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

Talk to the study team

Riboscience Clinical Trials  ·  ‪(415) 754-3182‬  ·  clinicaltrials@riboscience.com

Always discuss trial participation with your own doctor first.

Locations (14)

Honor Health Research InstituteScottsdale, Arizona, United StatesRecruiting
University of ArizonaTucson, Arizona, United StatesRecruiting
Stanford Cancer InstitutePalo Alto, California, United StatesRecruiting
UCLA Hematology/Oncology - Santa MonicaSanta Monica, California, United StatesRecruiting
Christiana Care Health ServicesNewark, Delaware, United StatesRecruiting
Norton Cancer InstituteLouisville, Kentucky, United StatesRecruiting
Ochsner Clinic FoundationNew Orleans, Louisiana, United StatesRecruiting
Johns Hopkins Sidney Kimmel Comprehensive Cancer CenterBaltimore, Maryland, United StatesRecruiting
American Oncology Partners of MarylandBethesda, Maryland, United StatesRecruiting
Ichan School of Medicine at Mount SinaiNew York, New York, United StatesRecruiting
Carolina BioOncology InstituteHuntersville, North Carolina, United StatesCompleted
Vanderbilt-Ingram Cancer CenterNashville, Tennessee, United StatesRecruiting

+ 2 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05270213