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PSMA Therapy and Immunotherapy in Kidney Cancer

NCT06361810 · Status: WITHDRAWN · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL

Last updated 2025-08-19

No results posted yet for this study

Summary

This is a multi-center, single arm open label phase 1b/2 study of pembrolizumab in combination with 177Lu-PNT2002 (also known as 177Lu-PSMA I\&T) radiopharmaceutical therapy in patients with metastatic clear cell renal cell carcinoma (RCC) who have progressed after prior treatment with anti-programmed cell death protein 1 (PD1) or PD-L1 immune-checkpoint inhibitors (ICIs). The study comprises 2 phases: an open-label Phase 1b dose escalation portion followed by a Phase 2 dose expansion portion. Investigators hypothesize that pembrolizumab in combination with 177Lu-PNT2002 in in patients with metastatic clear cell RCC at a biologically active dose will result in tolerable safety profile and it will lead to improved radiological objective responses in patients who have progressed after prior treatment with standard anti-PD1 or anti- Programmed Cell Death Ligand 1 (PDL1) immune-checkpoint inhibitor containing regimen when compared to historic controls. Patients in both phases will have prostate-specific membrane antigen (PSMA), positron emission tomography (PET) imaging with the radiotracer (F-18)-DCFPyl, to help detect any spread of the cancer.

Conditions

  • Metastatic Renal Cell Carcinoma
  • Metastatic Clear Cell Renal Cell Carcinoma

Interventions

DRUG

Pembrolizumab

Pembrolizumab will be administer at 400 mg IV every 6 weeks in combination with 177Lu-PNT2002 until the maximum tolerated dose of 177Lu-PNT2002 is reached during the dose escalation phase. Pembrolizumab will be administer at 400 mg IV every 6 weeks for a maximum of 17 cycles (6 weeks in each cycle) during the dose expansion phase.

DRUG

177Lu-PNT2002

177Lu-PNT2002 given intravenously every 8 weeks will be administered at 3.4 GBq, 6.1 Gbq, or 6.8 Gbq in combination with the standard dose of pembrolizumab 400 mg given intravenously every 6 weeks until the maximum tolerated dose is reached during the dose escalation phase. 177Lu-PNT2002 given intravenously every 8 weeks will be administered at the determined maximum tolerated dose for a maximum of 4 cycles in combination with the standard dose of pembrolizumab 400 mg given intravenously every 6 weeks for a maximum of 17 cycles.

DRUG

(F-18)-DCFPyL

Patients will be administered 18F-DCFPyL as a single bolus intravenous radioactive dose injection of 333 MBq (9 mCi) at screening, week 12 and week 24.

Sponsors & Collaborators

  • Merck Sharp & Dohme LLC

    collaborator INDUSTRY

  • Lantheus Medical Imaging

    collaborator INDUSTRY

  • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

    lead OTHER

Principal Investigators

  • Yasser Ged, MD · Johns Hopkins University

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-10-01
Primary Completion
2031-01-31
Completion
2032-01-31
FDA Drug
Yes

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06361810 on ClinicalTrials.gov