Pembrolizumab With Liver-Directed or Peptide Receptor Radionuclide Therapy for Neuroendocrine Tumors and Liver Metastases
Public ClinicalTrials.gov record NCT03457948. 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
A Pilot Study of Pembrolizumab and Liver-Directed Therapy or Peptide Receptor Radionuclide Therapy for Patients With Well-Differentiated Neuroendocrine Tumors and Symptomatic and/or Progressive Metastases
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This pilot phase II trial studies how effective pembrolizumab and liver-directed therapy or peptide receptor radionuclide therapy are at treating patients with well-differentiated neuroendocrine tumors and symptomatic and/or progressive tumors that have spread to the liver (liver metastases). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Liver-directed therapies such as radiofrequency ablation, transarterial embolization, yttrium-90 microsphere radioembolization, and cryoablation may help activate the immune system in order to shrink tumors that are not being directly targeted. Peptide receptor radionuclide therapy is a form of targeted treatment that is performed by the use of a small molecule, which carries a radioactive component attached to a peptide. Once injected into the body, this small molecule binds to some specific sites on tumor cells called receptors and emit medium energy radiation that can destroy cells. Because this radionuclide is attached to the peptide, which binds receptors on tumor lesions, the radiation can preferably be targeted to the tumor cells in order to destroy them. Giving pembrolizumab in combination with liver-directed therapy or peptide receptor radionuclide therapy may work better than pembrolizumab alone.
Study identification
- NCT ID
- NCT03457948
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 32 participants
Conditions and interventions
Interventions
- Arterial Embolization Procedure
- Pembrolizumab Biological
- Peptide Receptor Radionuclide Therapy (PRRT) using 177Lu-DOTA0-Tyr3-Octreotate Biological
- Yttrium-90 Microsphere Radioembolization Device
Procedure · Biological · Device
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
- Aug 26, 2018
- Primary completion
- Jul 30, 2025
- Completion
- May 30, 2026
- Last update posted
- Aug 27, 2026
2018 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of California, San Francisco | San Francisco | California | 94143 | — |
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 NCT03457948, 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 Aug 27, 2026 · Synced Sep 8, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03457948 live on ClinicalTrials.gov.