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NCT05270213 · ClinicalTrials.gov registry record · Phase 1

Evaluation of RBS2418 in Subjects With Advanced, Metastatic Solid Tumors

A Phase 1 study of Advanced Cancer, sponsored by Riboscience.

Recruiting
Registry status
Phase 1
Development phase
164
Enrollment target
14
Study locations

NCT05270213: Recruiting Phase 1 study of Advanced Cancer, sponsored by Riboscience.

NCT05270213 is a Phase 1 study of Advanced Cancer that is actively recruiting participants, run by Riboscience. The registered enrollment target is 164 participants, below the 245-participant average among 122 other Advanced Cancer trials with a reported enrollment target (33% lower). The trial reports 14 study locations across 11 states. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT05270213, a Phase 1 study of Advanced Cancer, is actively recruiting participants, sponsored by Riboscience.

RECRUITING
Registry status
Phase 1
Development phase
164 participants
Enrollment target
14
Study locations

Study Summary

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.

Primary Outcome

When more than 1 DLT occurs in ≤ 6 patients in a dosing cohort, MTD has been exceeded and no more patients are to be treated at that dose level. No DLT observed at the highest dose level in Part A. Part A has been completed.

Conditions Studied

Interventions

  • DRUG Pembrolizumab
  • DRUG RBS2418
  • DRUG Other approved anti-cancer therapy

Study Locations (14)

Arizona

  • Honor Health Research Institute - Scottsdale
  • University of Arizona - Tucson

California

  • Stanford Cancer Institute - Palo Alto
  • UCLA Hematology/Oncology - Santa Monica - Santa Monica

Maryland

  • Johns Hopkins Sidney Kimmel Comprehensive Cancer Center - Baltimore
  • American Oncology Partners of Maryland - Bethesda

Delaware

  • Christiana Care Health Services - Newark

Kentucky

  • Norton Cancer Institute - Louisville

Louisiana

  • Ochsner Clinic Foundation - New Orleans

New York

  • Ichan School of Medicine at Mount Sinai - New York

North Carolina

  • Carolina BioOncology Institute - Huntersville

Trial Details

FieldValue
Enrollment Target 164 participants
Start Date 2022-07-11
Est. Completion 2027-12
Phase Phase 1
Riboscience

3 total trials

What NCT05270213 shows while recruiting

NCT05270213 is an interventional study that assigns participants to a tested intervention. The registered 164 participants enrollment target is mid-sized for trials with a published cap, below the 245-participant average among 122 other Advanced Cancer trials with a reported enrollment target (33% lower).

The record links to 1 condition, with Advanced Cancer appearing as the primary indexed condition, and to 3 interventions - of which Pembrolizumab is the first listed.

NCT05270213 lists 14 locations in 11 states (Arizona, California, Maryland).

Frequently Asked Questions

What is clinical trial NCT05270213 about?

NCT05270213 is a clinical study titled "Evaluation of RBS2418 in Subjects With Advanced, Metastatic Solid Tumors". 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 triphospha...

What is the current status of trial NCT05270213?

This trial is currently recruiting. It is a Phase 1 study. The enrollment target is 164 participants. The study started on 2022-07-11. Estimated completion is 2027-12.

What conditions does trial NCT05270213 study?

This clinical trial studies the following conditions: Advanced Cancer.

What interventions are being tested in trial NCT05270213?

The interventions under investigation include: Pembrolizumab (DRUG), RBS2418 (DRUG), Other approved anti-cancer therapy (DRUG).

Who is sponsoring clinical trial NCT05270213?

This trial is sponsored by Riboscience, which has 3 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT05270213 being conducted?

This trial has 14 study locations across Arizona, California, Delaware, Kentucky, Louisiana. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Advanced Cancer

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT05270213's enrollment target sits among peer trials

164 40th of 122 higher than 83 of 122 other Advanced Cancer trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Advanced Cancer trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT05270213, the US trial registry maintained by the National Library of Medicine. NCT05270213 (mid enrollment · multi site footprint · recruiting) retrieved and formatted by PlainTrial, see methodology.