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Recruiting Phase 1, Phase 2 NCT05888532

NCT05888532 64Cu-GRIP B in Patients With Advanced Malignancies

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Clinical Trial Summary
NCT ID NCT05888532
Status Recruiting
Phase Phase 1, Phase 2
Sponsor Rahul Aggarwal
Condition Prostate Cancer
Study Type INTERVENTIONAL
Enrollment 91 participants
Start Date 2023-05-25
Primary Completion 2026-12-31

Trial Parameters

Condition Prostate Cancer
Sponsor Rahul Aggarwal
Study Type INTERVENTIONAL
Phase Phase 1, Phase 2
Enrollment 91
Sex ALL
Min Age 18 Years
Max Age N/A
Start Date 2023-05-25
Completion 2026-12-31
Interventions
Copper-64 labeled Granzyme B (64Cu-GRIP B)Positron Emission Tomography (PET)

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Brief Summary

This phase I/II clinical trial evaluates if using a radiotracer targeting granzyme B, 64-copper granzyme targeting restricted interaction peptide specific to family member B (64 Cu-GRIP B) with positron emission tomography (PET) imaging can be safe and useful for detecting granzyme B (GrB) in patients with advanced cancers that has spread to nearby tissue or lymph nodes (advanced). Granzyme B (GrB) is a biomarker produced by immune cells in response to immunotherapy, which may highlight tumors that are more likely to respond to treatment. The study population is focused on genitourinary (GU) malignancies, including renal cell and urothelial cancer, two tumor types with high mutational burden and tumor infiltrating lymphocytes compared to other tumor types, and have a predictable response rate at the population level to immune checkpoint inhibitors. The information gained from this trial may allow researchers to develop future trials where 64Cu-GRIP B PET may serve as a biomarker to monitor early response to immunomodulatory therapies which are used to stimulate or suppress the immune system and may help the body fight cancer.

Eligibility Criteria

Inclusion Criteria: 1. Disease characteristics by cohort, as defined by: Cohort A: * Histologically-confirmed metastatic solid tumor malignancy (3 Male, 3 Female) * Locally advanced or metastatic disease on conventional imaging Cohort B: * Histologically-confirmed metastatic renal cell carcinoma (any histologic sub-type) or urothelial carcinoma * Locally advanced or metastatic disease on conventional imaging Cohort C: * Histologically-confirmed prostate adenocarcinoma * Metastatic castration resistant prostate cancer by Prostate Cancer Clinical Trials Working Group 3 (PCWG3) criteria 2. Planned treatment with immune checkpoint inhibitor (Cohorts B and C only) 3. Willing to undergo paired tumor biopsies and has safely accessible bone or soft tissue lesion (Cohorts B and C only) 4. The subject is able and willing to comply with study procedures and provide signed and dated informed consent. 5. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1. 6. Age 18 years or olde

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology