UCDCC#272: IL-2, Radiotherapy, and Pembrolizumab in Patients Refractory to Checkpoint Blockade
Public ClinicalTrials.gov record NCT03474497. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
UCDCC#272: A Phase I/II Study of Intralesional IL-2, Hypofractionated Radiotherapy, and Pembrolizumab in Patients Refractory to Standard-of-Care PD-1/PD-L1 Checkpoint Blockade
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a phase I/II study that will evaluate the safety and toxicity of this combinatorial approach. Eligible patients \>18 years of age with histologically proven metastatic NSCLC, melanoma, RCC, or HNSCC who have failed PD-1 / PD-L1 checkpoint blockade therapy will be enrolled. Patients must have a candidate treatment lesion (subcutaneous, nodal, or visceral) accessible and safe for radiotherapy and serial intralesional injections as specified by the protocol. They must also have at least one target lesion (distinct from treatment lesion and outside of treatment lesion radiation field) evaluable for response by RECIST. This study will consist of a phase I dose escalation using a standard 3+3 design to determine safety and MTD of intralesional IL-2 which will be dose escalated in conjunction with standard fixed doses of RT and Pembrolizumab. At the MTD there will be a phase II dose expansion which will incorporate a simon-two stage design to assess efficacy and safety. Patients will receive pembrolizumab and intralesional IL-2 in combination with hypofractionated radiotherapy.
Study identification
- NCT ID
- NCT03474497
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 18 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 19, 2019
- Primary completion
- Apr 21, 2025
- Completion
- Jan 31, 2026
- Last update posted
- Jan 28, 2026
2019 – 2026
United States locations
- U.S. sites
- 2
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| UC Davis Medical Center | Sacramento | California | 95817 | — |
| University of California Davis Medical Center | Sacramento | California | 97817 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03474497, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 28, 2026 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03474497 live on ClinicalTrials.gov.