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Clinical Trials/NCT06398418
NCT06398418
Recruiting
Phase 1

A Single and Repeat Dosing and Expansion Study of the Safety, Drug Exposure and Clinical Activity of R-5780 in Combination With a PD-1 (Checkpoint Protein on Immune Cells Called T Cells) Pathway Checkpoint Inhibitor in Patients With Solid Tumors

Rise Therapeutics LLC1 site in 1 country33 target enrollmentAugust 1, 2025

Overview

Phase
Phase 1
Intervention
R-5780
Conditions
Solid Tumor, Adult
Sponsor
Rise Therapeutics LLC
Enrollment
33
Locations
1
Primary Endpoint
Incidence and severity of adverse events and their relationship to R-5780 (probiotic) administration
Status
Recruiting
Last Updated
8 months ago

Overview

Brief Summary

The goal of this study is determine the safety and tolerability of orally taken probiotic (R-5780) in patients currently on a PD-1 Pathway Checkpoint Inhibitor (checkpoint protein on immune cells called T cells) with Solid Tumors.

Detailed Description

Patients will take an oral dosage of probiotic (R-5780 and provide patient reported overall feeling and physician scored measure of their tumors. Blood and fecal evaluations of inflammation and assessment of probiotic (R-5780) on fecal levels will also be measured.

Registry
clinicaltrials.gov
Start Date
August 1, 2025
End Date
December 31, 2027
Last Updated
8 months ago
Study Type
Interventional
Study Design
Single Group
Sex
All

Investigators

Responsible Party
Sponsor

Eligibility Criteria

Inclusion Criteria

  • At least 18 years of age to 80
  • Ability to provide written informed consent
  • Unresectable stage III or stage IV melanoma, basal cell carcinoma, or squamous cell carcinoma as per the American Joint Committee on Cancer 2017 Guidelines (8th Edition) regardless of BRAF mutation status and other solid tumors.
  • Refractory to anti-PD (checkpoint Protein on Immune Cells called T cells)-1/L1 therapy per RECIST v1.1 defined as subject who has disease progression after receiving at least two complete cycles of ICI (immune checkpoint inhibitors) therapy or disease progression 6 months from initiation of ICI (immune checkpoint inhibitors) therapy while still on active therapy.
  • Life expectancy of greater than 3 months
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1 or 2
  • Subjects must have evaluable disease by CT (computer tomography) or MRI (magnet resonance imaging) per RECIST 1.1 criteria or clinically apparent disease that the investigator can follow for response.

Exclusion Criteria

  • Any serious medical condition or laboratory abnormality or psychiatric condition or any other significant or unstable concurrent medical illness (in the opinion of the Investigator) would preclude protocol adherence or would make the safety of the study drug difficult to assess
  • Treatment with systemic broad-spectrum antibiotics.
  • No active viral infections.
  • Coexisting severe chronic diseases other than cancer (autoimmunity, inflammatory diseases)
  • Secondary gastrointestinal motility disorders
  • History of solid organ transplant or bone marrow transplant
  • Prior CAR-T (chimeric antigen receptor) or allogeneic cellular therapy
  • Ongoing systemic immunosuppressive therapy, with the exclusion of prednisone (10 mg/day)
  • Concurrent therapy with any other investigational agent, vaccine, or device
  • Pregnant or breastfeeding or planning to conceive or father a child during the trial period

Arms & Interventions

Open Label

R-5780 Probiotic

Intervention: R-5780

Outcomes

Primary Outcomes

Incidence and severity of adverse events and their relationship to R-5780 (probiotic) administration

Time Frame: Baseline through Week 4

To assess the number of participants with treatment-related adverse events after taking R-5780 (probiotic)

Secondary Outcomes

  • Scale (QOLS)(Baseline through End of Study Day 112)

Study Sites (1)

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