Testing a new drug for advanced solid tumors
Official title: A Phase 1/2a, Open-Label, Dose Escalation and Dose Expansion First-In-Human Study of the Safety, Tolerability, Activity, and Pharmacokinetics of REGN10597 (Anti-PD-1-IL-2RA-IL-2 Fusion Protein) Alone or in Combination With Cemiplimab in Patients With Advanced Solid Organ Malignancies
Run by Regeneron Pharmaceuticals · NCT06413680 · Data updated 2026-11-12
This study is testing a new drug called REGN10597 to see if it is safe and effective for adults with advanced solid tumors like melanoma and kidney cancer.
Quick facts
| Phase | Phase1; Phase2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 240 (estimated) |
| Sponsor | Regeneron Pharmaceuticals Industry-sponsored |
| Drugs / interventions | immunotherapy, radiation, prednisone, cemiplimab |
| Locations | 11 sites (Los Angeles, California and 10 other locations) |
| Status | Recruiting |
| Started | September 23, 2024 |
| Main results expected | February 3, 2030 |
| Study ends | February 3, 2030 |
| Registry record updated | April 28, 2026 |
| Trial ID | NCT06413680 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults with histologically confirmed advanced melanoma or clear-cell renal-cell carcinoma who have progressed on standard-of-care therapies.
✕Probably not a fit
Patients who have recently received certain immunotherapies or systemic therapies may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial is investigating the safety and effectiveness of an experimental drug called REGN10597 in adult patients with advanced solid organ malignancies, including melanoma and clear-cell renal-cell carcinoma. The study is divided into two phases, with Phase 1 focusing on dose-escalation to determine safety and tolerability, while Phase 2 will expand to a broader patient population globally. Participants will undergo assessments to monitor side effects, drug levels in the blood, and the body's immune response to the drug. Archival and fresh tissue samples will be collected to support the research.
Why it matters
Potential benefit: If successful, this study could provide a new treatment option for patients with advanced solid tumors that have not responded to standard therapies.
How similar studies have gone: Other studies have shown promise with similar immunotherapy approaches, but this specific drug is being tested for the first time in humans.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key Inclusion Criteria: Dose escalation cohorts: 1\. Histologically or cytologically confirmed diagnosis of solid malignancy (locally advanced or metastatic) with confirmed progression on standard-of-care therapy. Participants are required to submit archival tissue if it is available Dose expansion cohorts: 1\. Histologically of cytologically confirmed diagnosis of one of the following tumors with criteria, as defined in the protocol: * Module 1, Cohort 1: anti-PD-(L)1 Progressed Melanoma or * Module 1, Cohort 2: anti-PD-(L)1 Progressed RCC or * Module 2, Cohort 1: 1L Melanoma ALL Participants ARE REQUIRED to submit fresh pretreatment biopsy during screening, with an additional exploratory biopsy at other time points Key Exclusion Criteria: 1. Prior treatment with Interleukin 2 (IL2)/IL15/IL-7 given outside the context of concurrent administration with adoptive cell therapy 2. Prior treatment with anti-PD1/PD-L1, or an approved systemic therapy or any previous systemic non-immunomodulatory biologic therapy within 4 weeks, as defined in the protocol 3. Has received radiation therapy or major surgery within 14 days prior to first dose of study drug or has not yet recovered from AEs 4. Has had prior anti-cancer immunotherapy within 4 weeks prior to study intervention, or discontinuation of prior anti-cancer immunotherapy due to grade 3 or 4 toxicities 5. Has ongoing immune-related AEs prior to initiation of study intervention, as defined in the protocol 6. Has known allergy or hypersensitivity to components of the study drug(s) 7. Has any condition requiring ongoing/continuous corticosteroid therapy (\>10 mg prednisone/day or anti-inflammatory equivalent) within 1-2 weeks to the first dose of study intervention 8. Has ongoing or recent (within 5 years) evidence of significant autoimmune disease or any other condition that required treatment with systemic immunosuppressive treatments NOTE: Other Protocol Defined Inclusion / Exclusion Criteria Apply.
Where it's running
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USC Norris Comprehensive Cancer Center
Los Angeles, California, United States Recruiting -
University of California San Francisco (UCSF)
San Francisco, California, United States Recruiting -
Yale School of Medicine
North Haven, Connecticut, United States Recruiting -
University of Chicago
Chicago, Illinois, United States Recruiting -
Start Midwest Cancer Research
Grand Rapids, Michigan, United States Recruiting -
Northwell Health
Lake Success, New York, United States Recruiting
Show 5 more locations
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University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, United States Recruiting -
University of Pittsburgh Medical Center - Hillman Cancer Center
Pittsburgh, Pennsylvania, United States Recruiting -
MD Anderson Cancer Center
Houston, Texas, United States Recruiting -
Next Oncology
San Antonio, Texas, United States Recruiting -
The Start Center for Cancer Care
San Antonio, Texas, United States Recruiting
Study contacts
- Study coordinator: Clinical Trials Administrator
- Email: clinicaltrials@regeneron.com
- Phone: 844-734-6643
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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REGN15505 Alone or With Cemiplimab or REGN4336 in Advanced Prostate Cancer and Kidney Cancer
This trial tests REGN15505 by itself or with cemiplimab or REGN4336 to see if it helps adults with metastatic castration-resistant prostate cancer or clear cell renal cell carcinoma.
-
First-line immune-checkpoint antibody combinations for advanced clear cell kidney cancer
This trial tests whether combining fianlimab and cemiplimab, with or without ipilimumab, works better than the standard ipilimumab plus nivolumab as first treatment for people with advanced clear cell kidney cancer.
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Combining two experimental drugs for advanced melanoma treatment
This study is testing if a new combination of two experimental drugs can help people with advanced melanoma more than the current approved treatments.
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Evaluating the safety and effectiveness of REGN5678 alone or with cemiplimab for advanced prostate and kidney cancer
This study is testing if a new drug called REGN5678, alone or with another drug called cemiplimab, can safely shrink tumors in adults with advanced prostate and kidney cancer.
-
Melanoma treatment with immunotherapy guided by serial ctDNA testing
This trial tests whether regular ctDNA blood tests during treatment can help tailor the plan for patients with advanced melanoma receiving nivolumab and ipilimumab.
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CG-7321: a first-in-human test in advanced solid tumors
We’re testing CG-7321 alone and with fulvestrant to see if it’s safe and tolerable in adults with advanced solid tumors.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.