[18F]-Fluoro-2-Deoxy-D-Glucose and -[18F] Dihydro-Testosterone Pet Imaging in Patients With Progressive Prostate Cancer

This study will use PET scans, which is a type of x-ray test that uses a radiotracer, to see whether these scans may be better able to find places in the body where your prostate cancer may have spread.

68Ga-PSMA PET-CT Scan for Diagnosis and Management of Prostate Cancer (PSMA)

This is a phase II clinical trial study to show how well the 68Ga-PSMA-11 (ProstaMedix™) PET-CT scan works in detecting tumor location and size in patients with suspected or confirmed prostate cancer, as well as prostate cancer that may have come back in patients with elevated PSA ( a prostate-specific antigen tumor marker) after initial treatment.

Phase II Study: [18F]DCFPyL PET/MRI for Personalizing Prostate Cancer Subclinical Metastatic Ablative MR-guided Radiotherapy (MRgRT)

In the clinical scenario of recurrent prostate cancer (PCa) post local therapy, current standard studies (bone scan and computed tomography) commonly fail to identify the recurrent disease location. In this study the investigator aims to prospectively map recurrent disease with the unique combination of whole-body MR anatomical imaging combined with a new high-sensitivity and PCa-specific PET probe (PSMA-targeted: [18F]DCFPyL) to provide precise localization information to target disseminated tumor deposits in men presenting with rising PSA after prostatectomy and radiotherapy (maximal local therapies). Moreover, we will consequently treat all identified disease with image-guided stereotactic ablative radiotherapy (SABR), which has shown tantalizing results achieving excellent tumor eradication rates with minimal toxicities. This study is uniquely positioned to enable the discovery of new biomarkers and the correlation of prognostic tests (e.g. genomic signatures) from the initial prostatectomy specimen with the PET-MR/CT imaging results and curative-intent treatment outcomes. The significance of the proposed work towards a measurable impact in PCa care is important to emphasize. The study team believes this novel curative-intent approach will transform lives, as opposed to therapies that transiently impact incurable disease stages. Herein, the focus is on patients at the earliest point of the disease spectrum of recurrent PCa after curative-intent treatments. Our hypothesis is that PSMA-targeted [18F]DCFPyL PET-MR/CT allows earlier detection and localization of defined metastatic targets in these patients, at a stage amenable to image-guided curative-intent therapy.

Multi-cohort Investigational Study to Evaluate the Impact of Pelvic Mp-3TMRI and Whole-body 68Ga-PSMA PET/CT for Diagnosis of Clinically-significant Prostate Cancer and Pre-surgical Staging.

BIOPSTAGE is a prospective, non-randomized, diagnostic, multi-cohort investigational study to evaluate the impact of pelvic Multi-parametric 3-Tesla magnetic resonance imaging (mp-3TMRI) and whole-body 68Ga-PSMA PET/CT for diagnosis of clinically-significant prostate cancer and pre-surgical staging.

Exploratory, Single-institution Study, Comparing 68Ga-RM2 PET/CT Versus 68Ga-PSMA-617 PET/CT in Patients Diagnosed With Intermediate Risk Prostate Cancer Candidates for Radical Prostatectomy

Patients with primary intermediate risk prostate cancer for whom radical prostatectomy is indicated, will be invited to participate to the present study. Positron Emission Tomography coupled with scanner (PET-CT) using a radiotracer : 68Ga-RM2 and Positron Emission Tomography coupled with scanner (PET-CT) using another radiotracer : 68Ga-PSMA-617, will be scheduled.

Lu177-EB-PSMA617 Prostate-Specific Membrane Antigen Inhibitor Therapy in Patients With Castration-Resistant Prostate Cancer

In prior studies, the investigators synthesized 177Lu-EB-PSMA-617 by conjugating a truncated Evans Blue (EB) molecule and DOTA chelator onto PSMA-617 and labeled it with 177Lu to increase the tumor accumulation and retention for radioligand therapy，and then the investigators evaluated the dosimetry of 177Lu-EB-PSMA-617 and response to single low-dose treatment in patients with metastatic castration-resistant prostate cancer(mCRPC). This study was performed to evaluate the safety and therapy response to 177Lu-EB-PSMA-617 in patients with mCRPC. This is an open-label, randomized study. Different groups with doses of 1.11GBq (30 mCi), 2.00 GBq (54 mCi) and 3.7GBq (100 mCi)of 177Lu-EB -PSMA617 will be injected intravenously. All patients will undergo 68Ga-PSMA PET/CT scans before and after the treatment.

An Exploratory Study of 89Zr-DFO-Atezolizumab ImmunoPET/CT in Patients With Locally Advanced or Metastatic Renal Cell Carcinoma

This is an exploratory clinical trial to assess the potential of 89Zr-DFO-Atezolizumab Positron Emission Tomography/Computed Tomography (PET/CT) scans in patients with locally advanced or metastatic renal cell carcinoma (RCC). This open label, nontherapeutic trial will test the correlation of 89Zr-DFO-Atezolizumab immunoPET/CT with programmed death-ligand 1 (PD-L1) expression and the response to immune checkpoint inhibitor therapy in patients with RCC. There will be two cohorts, one made up of patients with localized RCC who will undergo 89Zr-DFO-Atezolizumab PET/CT prior to nephrectomy and a second cohort of patients with metastatic RCC who will undergo 89Zr-DFO-Atezolizumab PET/CT prior to treatment with an immune checkpoint inhibitor.

A Sub-study of 18F-DCFPyL Positron Emission Tomography / Computed Tomography (PET/CT) for Assessment of Recurrent Prostate Cancer Evaluation of the Safety and Sensitivity of 68Ga-DOTATOC PET/CT for Imaging NET Patients

Quantitative parameters obtained with dynamic whole body imaging using positron emission tomography (PET) can provide additional and complementary information to standard PET. Dynamic imaging allows for better understanding of the behavior of the radio-pharmaceutical because it can be followed over time. Thought to be difficult to perform with currently available clinical equipment that can affect the clinical workflow, it has recently shown to be feasible. We want to test the feasibility of this imaging technique and evaluate its utility in identifying lesions with three different radio-pharmaceuticals as compared to standard static PET. This study will also determine the clinical impact of DWB PET on participant management by comparing the overall qualitative assessment performed by nuclear medicine physicians between the standard PET images and the DWB ones.

A Phase II Randomized Trial of Radium-223 Dichloride and Cabozantinib in Patients With Advanced Renal Cell Carcinoma With Bone Metastasis (RadiCal)

This phase II trial studies whether adding radium-223 dichloride to the usual treatment, cabozantinib, improves outcomes in patients with renal cell cancer that has spread to the bone. Radioactive drugs such as radium-223 dichloride may directly target radiation to cancer cells and minimize harm to normal cells. Cabozantinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving radium-223 dichloride and cabozantinib may help lessen the pain and symptoms from renal cell cancer that has spread to the bone, compared to cabozantinib alone.

The Use of Nanoparticles to Guide the Surgical Treatment of Prostate Cancer

The purpose of this study is to see whether using the 64Cu-NOTA-PSMA-PEG-Cy5.5-C' dot tracer is a safe way to identify tumor cells before and during surgery for prostate cancer. The researchers want to find out whether PET/MRI scans done after the injection of this investigational tracer are more accurate than the usual imaging scans used to locate deposits of prostate tumor cells. The researchers will study how the tracer travels through your body and where it is distributed. This study is the first time that this tracer will be used in people who are undergoing surgery for prostate cancer.

Phase II Trial of Radium-223 in Biochemically Recurrent Prostate Cancer

Some men who have been treated for localized prostate cancer with surgery or radiation still show signs of the disease in their blood. This is called biochemically recurrent prostate cancer. Radium-223 is a small molecule. It uses radiation to kill cancer cells and improves survival in advanced prostate cancer. Researchers want to see if it can treat prostate cancer and induced immune changes earlier in the disease when the cancer is only detectable by prostate specific antigen (PSA) in the blood.

Evaluation of Diagnostic Accuracy of [68Ga]Ga-PSMA-11 PET/CT in Primary Staging of Intermediate and High Risk Prostatic Cancer in Men Newly Diagnosed

This is a diagnostic accuracy prospective, single-centre, open-label, single group assignment interventional study. Its aim is to evaluate the diagnostic accuracy of [68Ga]Ga-PSMA-11 PET/CT in detection of primary tumour and extra prostatic disease (lymph node, soft tissues spread or bone metastases) in men newly diagnosed with Prostate Cancer at Intermediate and High Risk, according to 2019 Prostate Cancer EAU Guidelines Risk Group Stratification (see Study Population paragraph). The investigators are interested in the possible future role of [68Ga]Ga-labelled PSMA PET/CT as integration to conventional imaging mpMRI (with or without CT of the lower abdomen and Bone scan) in the detection of primary tumor and extra-prostatic disease (lymph node and soft tissues spread or bone metastases).

The Impact of DNA Repair Pathway Alterations Identified by Circulating Tumor DNA on Sensitivity to Radium-223 in Bone Metastatic Castration-Resistant Prostate Cancer

This phase II study investigates how well radium-223 works in treating patients with castration-resistant prostate cancer than has spread to the bones (bone metastases). Prostate cancer is the most common cancer in men and the second leading cause of cancer death. Furthermore, many men with notably advanced disease have been found to have abnormalities in DNA repair. The purpose of this research is to study the role of a DNA repair pathway in prostate cancer, specifically in response to administration of radium-223, an FDA-approved drug known to cause DNA damage to cancerous cells. Understanding how defects in the DNA repair pathway affects radium-223 treatment of prostate, may help doctors help plan effective treatment in future patients.

Diagnostic Performance of 18F-prostate-specific Membrane Antigen-1007 PET/CT in the Detection of Prostate Cancer

Currently, Maximum Standardized Uptake Value (SUVmax) is the most commonly used semi-quantitative parameter in PET/CT, which is used to assess tumor burden of PCa, and thus can be used as an imaging biomarker to assess the degree of malignancy of prostate cancers. However, prior studies mainly focused on the correlation between patients' biochemical recurrence lesions and the PSA levels and Gleason score. There is a lack of research to explore the correlation among primary PCa burden, PSA levels, and the degree of prostate cancer malignancy. The aim of this project is to use 18F-PSMA PET/CT SUVmax to analyze the correlation among primary PCa imaging, and clinical indicators, and to evaluate the predictive value for PCa risk stratification, metastasis risk, and biochemical recurrence.

AcTION: A Phase I Study of [225Ac]Ac-PSMA-617 in Men With PSMA-positive Prostate Cancer With or Without Prior [177Lu]Lu-PSMA-617 Radioligand Therapy

This is a Phase 1, open-label, international, dose escalation study to evaluate the safety of [225Ac]Ac-PSMA-617 (225Ac-PSMA-617) in men with PSMA-positive prostate cancer who have and have not had prior exposure to [177Lu]Lu-PSMA-617 (177Lu-PSMA-617) or [177Lu]Lu-PSMA I&T (177Lu-PSMA I&T).

Detection and Monitoring of Metastasis by 18F-DCFPyL PET/CT in Subjects Starting Enzalutamide for Untreated Castration Resistant Prostate Cancer and Negative Conventional Imaging

This study aimed to evaluate the diagnostic performance of 18F-DCFPyL (PyL) PET/CT in subjects presenting not previously treated for castration resistant prostate cancer and showing negative or equivocal findings per institutional standard of care conventional imaging

Bipolar Androgen Therapy (BAT) and Radium-223 (RAD) in Metastatic Castration-resistant Prostate Cancer (mCRPC) (BAT-RAD Study)

This is a single-arm, multicenter open label, international, phase II study of Bipolar Androgen Therapy (BAT) plus Radium-223 (RAD) in men with metastatic castration-resistant prostate cancer (mCRPC). Men with mCRPC with progressive disease (radiographically and/or biochemically) who have been treated with gonadotropin-releasing hormone (GnRH)-analogue (LHRH agonists/antagonists) continuously or bilateral orchidectomy will be enrolled in this study. Previous antiandrogen therapies are permitted, but no more than one (such as abiraterone, enzalutamide, apalutamide, darolutamide). All patients will receive treatment with Radium-223 at a dose of 55 Kilobecquerel (kBq) per kilogram of body weight IV every 28 days, for 6 cycles, plus Testosterone Cypionate 400mg Intramuscular (IM) every 28 days, until progression or unacceptable toxicity.

Prostate Cancer Theranostics and Imaging Centre of Excellence (ProsTIC) Prospective Patient Registry of Men Treated With PSMA Theranostics

This is a descriptive, observational, prospective, open-ended, registry utilising electronic data capture to collect information on the outcomes of men treated with prostate specific-membrane antigen (PSMA) theranostics.

A Randomized Trial Comparing Conventional "Salvage" Radiotherapy and Individualized 68Ga-PSMA-11 or 18F-PSMA-1007 PET/CT Targeted Treatment in Patients With Biochemical Recurrence After Prostate Cancer Surgery

Less than 50% of patients receiving salvage radiation therapy (SRT) to the pelvis as treatment for prostate cancer relapsing after surgery will achieve undetectable Prostate Specific Antigen (PSA) levels. Despite SRT, two-thirds of patients will again develop elevated PSA, 20% will have distant metastases, and 10% will die from prostate cancer within 10 years. The reason for this is probably preexisting distant metastasis and lymph node metastasises which need to better targeted directly. Additionally , there are well known permanent side effects to SRT. Standard imaging techniques have poor sensitivity detecting recurrence when PSA is below 1.0 ng/ml. The surface protein Prostate-specific membrane antigen (PSMA) is overexpressed on prostate cancer cells and 68Gallium (68Ga)- and 18Fluorine (18F)-targeted radioligands have been developed. PSMA PET/CT is used increasingly but there is limited data of its impact. In this study patients with biochemical relapse of prostate cancer after surgery are randomised to the control or experimental group (1:2) and undergo a PSMA PET/CT scan. The experimental group receives individualised therapy based on the result of the PET/CT. The control group receives standard salvage therapy and the result of the PET/CT is blinded. The patients are followed-up with PSA test and quality of life questionnaires.

Determining the Magnitude of Change in [18F]FPIA-detectable Short Chain Fatty Acid Uptake in Metastatic Renal Cell Cancer Following Therapy

Renal cell carcinoma (RCC) is the most prevalent and lethal malignancy of the kidney. At the time of diagnosis, as many as a fifth of patients have metastatic disease (mRCC). Despite advances in treatment, long-term survival rates remain poor. 18F-fluoropivalate ([18F]FPIA) is a new tracer that images short chain fatty acid (SCFA) uptake in tumours, a key component of fatty acid oxidation. The aim of the study is to investigate longitudinal changes in [18F]FPIA uptake at baseline, at 4-6 weeks and at 12 weeks following treatment initiation in patients using tyrosine kinase inhibitors (TKI's), chemotherapy, immunotherapy, or combinations of these. The investigators hypothesise that the import of [18F]FPIA-detectable SCFA into tumours is high and decreases with effective treatment.

Phase I/II Trial of Pembrolizumab and Androgen-receptor Pathway Inhibitor With or Without 225Ac-J591 for Progressive Metastatic Castration Resistant Prostate Cancer

This is a phase I/II study investigating the combination of 225Ac-J591 (a drug that can deliver radiation to prostate cancer cells) with pembrolizumab (immunotherapy, a drug that increases the immune system's ability to destroy cancer cells). This study will assess whether 225Ac-J591 + pembrolizumab + androgen receptor pathway inhibitor (ARPI) is more effective against prostate cancer than pembrolizumab + ARPI alone.

Efficacy of 68Ga PSMA PET in the Diagnosis of Lymph Node Metastasis in Patients With Prostate Cancer: a Single Center Prospective Randomized Controlled Trial

Efficacy of 68Ga PSMA PET / CT in the diagnosis of lymph node metastasis in patients with prostate cancer: a single center prospective randomized controlled trial. To identify and compare the diagnostic efficacy of 68Ga-PSMA PET/CT and mpMRI for lymph nodes in patients with newly diagnosed prostate cancer.

A Single Center Prospective Study of Diagnostic Efficiency of 68Ga-PSMA PET in the Patients With Locally Advanced and Advanced Renal Cell Carcinoma

The primary research purpose is to evaluate the diagnostic efficacy of 68Ga-PSMA PET in metastatic lesions of locally advanced and advanced renal cell carcinoma, and to compare with that of enhanced CT. The second purpose is to evaluate whether 68Ga-PSMA PET can change the treatment decision of patients with locally advanced and advanced renal cell carcinoma

Therapeutic Efficiency and Response to 2.0 GBq (55mCi) 177Lu-EB-PSMA in Patients With mCRPC

In recent years, quite a few studies have demonstrated the possibility of 177Lu-PSMA-617 therapy as a viable treatment option in metastatic castration resistant prostate cancer (mCRPC), which has been shown desired effect. To increase tumor accumulation and retention for radioligand therapy, and reduce dosage of 177Lu, we conjugated a truncated Evans blue (EB) molecule and DOTA chelator onto PSMA-617 (EB-PSMA) and labeled it with 177Lu. This study is designed to assess the efficiency and response to 177Lu-EB-PSMA (55 mCi) in patients with mCRPC.

The Correlation Between the Detection Rate of 18F-FACBC PET/CT and the PSA Kinetics for Prostate Cancer Patients With Biochemical Recurrence.

Prostate cancer (PCa) is the fifth-most common cancer for male with a seventh highest cancer-related death in Taiwan. Currently, the incidence and mortality rate are still increasing rapidly. The treatment decision planning is made up by clinical charts like Gleason score (GS), TNM stage and serum prostate-specific antigen (PSA) level. However, after definitive therapy for PCa with either external beam radiotherapy (EBRT) or radical prostatectomy (RP), up to half patients experience biochemical recurrence (BCR). Although not all patients with BCR proceed to develop disease progression, it is important to identify early lesion to initiate salvage treatment.

SAXON-PC: A Phase II Randomized Trial of Stereotactic Body Radiation Therapy (SBRT) And Radium (Ra-223) Dichloride for Oligorecurrent, Non-castrate Resistant Prostate Cancer

Participants will either receive treatment with standard SBRT and the study drug Radium (Ra-223) dichloride, or standard SBRT alone.

Phase II Trial of 18F-DCFPyL Imaging as a Method to Assess Treatment Response to Stereotactic Body Radiation Therapy

Identifying medium- and high-risk prostate cancer early may allow for treatments to work. But identification can be hard. Researchers want to see if a radiotracer used during PET scans can help.

A Phase 2 Open-label Study of Nivolumab Combined With Lutetium 177-Labeled Anti-Carbonic Anhydrase IX Monoclonal Antibody Girentuximab in Patients With Clear Cell Advanced Renal Cell Carcinoma

The purpose of this study is to see if the combination of 177Lu-girentuximab and nivolumab is a safe and effective treatment for advanced clear cell renal cell carcinoma/ccRCC that has the CAIX protein.

PET Imaging Study of 89Zr-DFO-YS5

CD46 is an exciting new therapeutic target in prostate cancer, with the antibody drug conjugate FOR46 under investigation in phase I clinical trials. The hypothesis of the study is that CD46 expression, measured via our novel imaging biomarker, is a characteristic feature of mCRPC, and particularly common in the most lethal forms of the disease including adenocarcinoma and Small-cell neuroendocrine carcinoma (SCNC). These data will provide crucial information about the feasibility of targeting cluster of differentiation 46 (CD46) in mCRPC, will be used guide the development of novel therapeutic and theranostic agents, to help develop treatments that improve outcomes for men with the most lethal forms of prostate cancer.

A Pilot Comparison of 68Ga-P16-093 and 68Ga-PSMA-11 in the Same Group of Primary Prostate Cancer Patients

Prostate-specific membrane antigen (PSMA)-targeted PET imaging with 68Ga-labeled compounds is able to provide superior sensitivity and specificity to detect primary prostate tumor and its metastases, like the most widely studied 68Ga-PSMA-11. This pilot study was evaluate the diagnostic performance of 68Ga-P16-093, a novel radiopharmaceutical targeting PSMA, which was compared with 68Ga-PSMA-11 in the same group of primary prostate cancer patients.

Combination of Radium-223 and Lutetium-177 PSMA-I&T in Men With Metastatic Castration-Resistant Prostate Cancer

This clinical trial will evaluate the safety of Radium-223 in combination with 177Lu-PSMA-I&T in metastatic castration-resistant prostate cancer: Phase I/II study

Multicenter Evaluation of Diagnostic Performance of [18F]FPSMA-1007 PET/CT in Patients With Suspected Prostate Cancer

The diagnostic tools for detecting patients with early prostate cancer are limited due to poor diagnostic performance. The positron emission tomography (PET) combination with the diagnostic radiopharmacy is a non-invasive tool to provide the molecular imaging of the whole body and offer more comprehensive physiological information and then can raise the diagnostic performance. Prostate-specific membrane antigen (PSMA)-targeting pharmaceuticals have been regarded as the most promising diagnostic tool to diagnose patients with prostate cancer. Currently, the 18F-PSMA-1007 as PSMA-targeting 18F-radiolabeled pharmaceuticals have developed and successfully used in patients with intermittent- and high-risk prostate cancer or recurrent prostate cancer. The study aims to understand the diagnostic performance of 18F-PSMA-1007 PET/CT in different-stage prostate cancer patients by initiating the first multicenter clinical trial of 18F-PSMA-1007 in Taiwan.

A Phase 1/2 Clinical Trial to Evaluate the Safety, Tolerability, Dosimetry, and Anti-tumor Activity of Ga-68-NGUL / Lu-177-DGUL in Patients With Metastatic Castration-resistant Prostate Cancer (mCRPC) Refractory to Standard Therapy

This clinical trial is an open-label, single-arm, single-center, escalation (Phase 1 Part B only), rater-blind (Phase 2 only), phase 1/2 trial to evaluate the diagnostic validity/safety of Ga-68-NGUL and efficacy/safety of Lu-177-DGUL on the anti-tumor activity that aims to simultaneously evaluate diagnostic and therapeutic validity.

A Study of Prospective Monitoring of Subjects With Biochemically Recurrent Prostate Cancer Using 18F-DCFPyL

Prostate cancer is the second leading cause of cancer-related death in American men. The disease recurs in up to 50,000 men each year after their early-stage disease was treated; however, at this stage, imaging scans are often unable to find the disease in the body. In this natural history study, researchers want to find out if a new radiotracer (18F-DCFPyL) injected before positron emission tomography (PET) imaging can help identify sites in the body with cancer.

Stereotactic Prostate Radiotherapy With Dose Escalation Focused on the "Dominant Intra-prostatic Lesion" (DIPL) Delineated by Multi-parametric MRI and 68Ga-PSMA PET (Prostate-SIB-PSMA)

In localized intermediate- and high-risk prostate cancers (according to the NCCN classification), external radiotherapy delivering a "high" dose (dose equivalent 78-80Gy EQD2, α/ß=1.5) to the entire prostate volume combined with hormonal treatment, if necessary, has shown its benefit in terms of recurrence-free survival and is considered a standard treatment for this indication.

A Phase Ib Dose-Escalation Study of Cabozantinib in Combination With Lutetium-177 (177Lu)-PSMA-617 in Patients With Metastatic Castration-Resistant Prostate Cancer (mCRPC)

This is an open-label, phase 1b dose-escalation study of cabozantinib in combination with 177Lu-PSMA-617 in subjects with mCRPC. The primary hypothesis is that cabozantinib with 177Lu-PSMA will be safe and have efficacy in patients with mCRPC. The dose-escalation phase (Part 1) will assess the rate of dose-limiting toxicities (DLTs) during the DLT evaluation period and identify the MTD and/or recommended dose and schedule for the subsequent expansion phase (Part 2).

A Head-to-head Comparison of 68Ga-P15-041 and 68Ga-PSMA-11 PET/CT Imaging in the Same Group of Prostate Bone Metastasis

Tumor bone metastasis refers to the metastasis of malignant tumors to the bone through lymph, blood or direct invasion to generate daughter tumors, which is the most common bone tumor. More than 40% of patients with malignant tumors will have bone metastasis, among which breast cancer, prostate cancer is more common, once the tumor cells occur bone metastasis, it means that the disease enters the advanced stage, posing a serious threat to the life safety of patients, therefore, early diagnosis of various primary malignant tumor bone metastases, can lay the foundation for clinical implementation of effective treatment measures. The laboratory of Hank F. Kung at the University of Pennsylvania has developed a new generation of 68Ga-labeled radiopharmaceutical P15-041 ([68Ga]Ga-HBED-CC-BP) based on existing phosphonate-targeting molecular probes (Figure 1). Data from preclinical studies indicate that P15-041 shows additional advantages in rapid and easy complex formation compared to current [68Ga]Ga-BPAMD, [68Ga]Ga-NO2AP-BP, [68Ga]Ga-DOTA- (ZOL). In vivo experiments, P15-041 showed good bone resorption and rapid renal excretion in normal mice. Haiyan Hong et al. [13] prepared multiple clinical doses of P15-041 and successfully evaluated it in patients, followed by intravenous P15-041, followed by a whole body PET/CT scan. Robert K. Doot et al. conducted dosimetric experiments on P15-041, analyzed the radioactive distribution of the drug in normal organs and the dynamic change of the dose of the drug in the body over time, and the results showed that P15-041 had high uptake in the bladder wall and bone cortex, blood and other tissues cleared quickly, and there was obvious radioactive enrichment in the myocardium in the early stage of imaging, and P15-041 had the potential to become a new generation of excellent phosphonate molecular probes.

Optimizing Timing of rhPSMA-7.3 (18F) for Assessing Site(s) of Recurrent Disease Following Radical Prostatectomy

All men following Radical Prostatectomy (RP) at NYU Langone Health undergo routine prostate specific antigen (PSA) testing in order to identify disease recurrence. By consensus, a BCR following RP occurs once the PSA > 0.2 ng/ml/ Biochemical recurrence often develops years prior to clinical evidence of disease recurrence. Early identification of the site(s) of disease recurrence enables early salvage intervention. Men will be eligible for the study at the point in time their post-prostatectomy PSA level first becomes >0.2 ng/ml. Only those patients with rhPSMA-7.3 (18F) identifiable disease (local, nodal or systemic) will be offered salvage intervention per standard of care. All patients with a negative initial rhPSMA-7.3 (18F) scan will undergo a second scan when the PSA is > 0,5 ng/ml or one year after the initial PET study. The salvage interventions will be at the discretion of the investigator. The study will compare the diagnostic yield of the first and second rhPSMA-7.3 (18F) studies.

A Phase II Study of Fluorine-18 (18F)-Labeled PSMA-1007 in Patients With Known or Suspected Metastatic Prostatic Carcinoma

A [18]F-PSMA-1007 PET/CT or PET/MRI scan are nuclear medicine tests used to create pictures of the whole body that may show where cells that express Prostate-Specific Membrane Antigen (PSMA) are found. PSMA is a transmembrane protein that is overexpressed in the majority of prostate cancers. PSMA imaging utilizes this overexpression, by binding on the transmembrane receptor and internalization in the cancer cells. The internalized isotope can then be imaged with the use of a PET/CT or PET/MRI scanner and show where cancer cells may be present in the body. This imaging modality has been shown to be superior to conventional imaging, such as bone scan and CT, in the detection of prostate cancer tumors.

Prospective Study Evaluating the Role of Axumin® (Fluciclovine or 18F-FACBC) PET in Patients With Biochemical Recurrence of Prostate Cancer and a Negative PSMA PET

The purpose of this prospective cohort study is to investigate the role of Fluciclovine Positron Emission Tomography (PET) in patients with biochemical recurrence of prostate cancer (BCR) and a negative Prostate Specific Membrane Antigen (PSMA) PET, specifically, whether Fluciclovine PET can help detect local recurrence and whether the results of Fluciclovine PET can change management.

177Lu-labeled NY108 SPECT Imaging in Patients

This is a single arm study to evaluate the safety and biodistribution of 177Lu-labeled NY108 (177Lu-NY108) SPECT Imaging in patients.

68Ga-NY104 PET/CT and 18F-FDG PET/CT in Patients With Metastatic Clear Cell Renal Cell Carcinoma: a Prospective, Single Center, Single Arm, Comparative Imaging Trial

This is a prospective, single-center, single-arm, comparative phase 2 study in patients with metastatic clear cell renal cell carcinoma. The goal is to determine the sensitivity of 68Ga-NY104 PET/CT in patients with metastatic clear cell renal cell carcinoma and compare it with 18F-FDG PET/CT.

68Ga-NY104 PET/CT for the Detection of Clear Cell Renal Cell Carcinoma in Presurgical Patients With Renal Masses

This is a prospective, single-center, single-arm, diagnostic phase 2 study in patients who have renal masses scheduled for surgical resection. The goal is to determine the sensitivity and specificity of 68Ga-NY104 PET/CT in the detection of clear cell renal cell carcinoma using histopathological diagnosis as ground truth, in patients with operable renal masses.

Phase I Dose Escalation Study to Evaluate Tolerability and Safety of 225Ac-PSMA I&T in Patients With Metastatic Prostate Cancer

225Ac-PSMA I&T is a radiopharmaceutical for therapy of prostate cancer. PSMA is overexpressed on prostate cancer cells. Actium-225 is an alpha emitting radionuclide. When PSMA I&T is labelled with Actium-225, it can be applied as therapy for prostate cancer.

A Multi-center, Open-label, Single Arm Phase III Clinical Trial for the Diagnostic Efficacy Assessment and Safety Evaluation by [18F]Florastamin PET/CT Imaging Examination in Patients With Suspected Recurrent or Metastatic Prostate Cancer

This is a multi-center, open-label, single arm Phase III clinical trial for the diagnostic efficacy assessment and safety evaluation by [18F]Florastamin PET/CT imaging examination to determine the presence of recurrent or metastatic prostate cancer in patients whose recurrent or metastatic lesions have been confirmed through the conventional imaging.

SPECT Imaging of Gastrin Releasing Peptide Receptors Using Labeled Technetium-99m DB8 ([99mTc]Tc- DB8) in Prostate Cancer and Breast Cancer Patients

The study should evaluate the biological distribution of 99mTc-DB8 in patients with prostate cancer and breast cancer. The primary objective are: To assess the distribution of [99mTc]Tc- DB8 in normal tissues and tumors at different time intervals. To evaluate dosimetry of [99mTc]Tc- DB8. To study the safety and tolerability of the drug [99mTc]Tc- DB8 after a single injection in a diagnostic dosage. The secondary objective are: 1. To compare the obtained [99mTc]Tc- DB8 SPECT imaging results with the data of CT and/or MRI and/or ultrasound examination and immunohistochemical (IHC) studies in prostate cancer and breast cancer patients.

Exploratory Study on the Effectiveness of Gallium [68Ga] NOTA-SGC8 Injection in the Staging of Bladder Cancer

Brief Summary: The goal of this clinical trial is to test the imaging and diagnostic ability of [68Ga]-NOTA-SGC8 PET/MR in bladder cancer patients with different stages. The main questions it aims to answer are: Tumor specific lighting ability of [68Ga]-NOTA-SGC8 in bladder cancer patients with different stages. The safety of [68Ga]-NOTA-SGC8. Participants will be irrigated with [68Ga]-NOTA-SGC8 into the bladder for tumor imaging under PET/MR. The imaging performance of [68Ga]-NOTA-SGC8 on different stages of bladder tumors will be systematically evaluated by combining with pathological sections of patients. Urine accumulation and radioactivity distribution of [68Ga]-NOTA-SGC8 will be measured. The adverse events will be recorded.

Study of 177Lu-PSMA-0057 in Metastatic Prostate Cancer

The purpose of this study is to evaluate the effectiveness and safety of 177Lu-PSMA-0057 in metastatic prostate cancer.

A Phase 4 Open-Label Multicenter Study of PYLARIFY® PET/CT or PET/MRI in Men With Newly Diagnosed Favorable Intermediate Risk (FIR) Prostate Cancer

The purpose of this study is to learn whether PYLARIFY PET imaging (study scan) can safely and accurately detect the presence or absence of prostate cancer growing beyond the prostate gland in men with favorable intermediate risk prostate cancer.

Clinical Evaluation of 18F-LN1 PET/CT for Imaging of Nectin-4 in Urothelial Carcinomas

The clinical feasibility of 18F-LN1 PET/CT will be evaluated in 30 patients with urothelial carcinoma, and the results will be compared with those of 18F-FDG.

68Ga-NOTA-PEG2-RM26 PET/CT: Tracer Biodistribution and Uptake in Different Kinds of Cancer With Gastrin-Releasing Peptide Receptor (GRPR) Overexpression

The gastrin-releasing peptide receptor (GRPR), also known as bombesin receptor subtype II (BB2), is a member of the G protein-coupled receptor family of bombesin receptors. GRPR is over-expressed in various types of human tumors. RM26, a GRPR antagonist with high affinity, was discovered by peptide backbone modification of bombesin analogues. To target gastrin-releasing peptide receptor in human neoplastic cells NOTA-PEG2-RM26 was synthesised and then labeled with 68Ga. An open-label whole-body PET/ CT study was designed to investigate the safety and dosimetry of 68Ga-NOTA-PEG2-RM26 and to assess its clinical diagnostic value in patients with cancer.

Monocentric Observational Study on the Diagnostic and Prognostic Role of 18F-PSMA PET (PET/CT and PET/MR) in Prostate Cancer

The general objective of this retrospective and prospective study is to evaluate the diagnostic and prognostic role of a quantitative analysis of PET images with 18F-PSMA in all stages of the disease in patients with prostate cancer. To this end, both imaging parameters commonly used in clinical practice and the contribution of radiomic features will be investigated. The latter are quantitative features extracted from biomedical images, and are believed to be able to provide information, otherwise impossible to investigate, useful for the characterization of various pathologies. This methodology is very promising, but also recent and therefore little studied and standardized. Our objective is also to investigate how to optimize it from a purely methodological point of view.

Minority-Inclusive Imaging Biomarker-Based End of Therapy Trial for 177Lu-PSMA-617, a Randomized De-Escalation Theranostic Trial for Metastatic Castrate Resistant Prostate Cancer

This phase II trial studies how to improve the usage of Lu 177 vipivotide tetraxetan (177Lu-prostate-specific membrane antigen [PSMA]-617) for treating patients with castration-resistant prostate cancer that has spread from where it first started (primary site), to other places in the body (metastatic) utilizing a treatment pause after 5 cycles of therapy versus standard continuous treatment for 6 cycles. Lutetium is a radioligand therapy (RLT). RLT uses a small molecule (in this case 177Lu-PSMA-617) that carries a radioactive component to destroy tumor cells. When lutetium is injected into the body, it attaches to the PSMA receptor found on tumor cells. After lutetium attaches to the PSMA receptor, its radiation component destroys the tumor cell. Giving 177Lu-PSMA-617 for 5 cycles versus 6 cycles may better treat patients with metastatic castrate resistant prostate cancer.

Phase 1 Trial Assessing Safety, Maximum Tolerated Dose, and Patient-Specific Dosimetry of [177Lu]Lu-LNC1011 in Metastatic Castration-Resistant Prostate

[177Lu]Lu-LNC1011 is a novel long-circulating PSMA therapeutic probe. This study represents the first human investigation, aiming to explore its maximum tolerated dose (MTD), safety, dosimetry, and initial treatment efficacy in patients with metastatic castration-resistant prostate cancer (mCRPC).This study employed an open-label, non-randomized design, representing the first human trial of its kind. It utilized a standard 3+3 dose-escalation approach, focusing on patients with metastatic castration-resistant prostate cancer, initiating treatment at a dose of 1.85 GBq over a 6-week period. Subsequent cohorts underwent sequential 50% dose escalations until the observation of dose-limiting toxicity (DLT).

Fully Hybrid 18F-PSMA PET/MRI as One-stop Approach for the Diagnosis of Clinically Significant Prostate Cancer.

This project aims to evaluate the role of fully hybrid PET/MRI with 18FPSMA and multiparametric MR imaging (mpMRI) as one-stop approach for the diagnosis of clinically significant prostate cancer (csPCa). Our main hypothesis is that adding 18F-PSMA PET to mpMRI prior to biopsy, will reduce the number of false negative findings, while at the same time, allowing also to reduce the number of unnecessary prostate biopsies in patients with low-risk, clinically indolent PCa.

99mTc-QULIC-5-P1 SPECT Imaging in Patients With Prostate Cancer and Compared With 68Ga-PSMA-11 PET

99mTc-QULIC-5-P1 is a new radiotracer targeting PSMA, which is promising as an excellent imaging agent applicable to PSMA positive prostate cancer. This study will investigate the safety, biodistribution and potential usefulness of 99mTc-QULIC-5-P1 SPECT imaging for the diagnosis of lesions in PSMA positive prostate cancer.

Head-to-head Comparison of [18F]F-PSMA-N5 With [18F]F-PSMA-1007 PET/CT in Prostate Cancer Diagnosis, Recurrence, and Metastasis: a Prospective Study

To prospectively evaluate the radiodrug biodistribution of a novel PET imaging agent [18F]F-PSMA-N5 in different organs of prostate cancer patients and its diagnostic efficacy in the diagnosis, recurrence and metastasis of prostate cancer, and to compare with [18F]F-PSMA-1007.

Utilizing 68Ga-PSMA PET/MRI Imaging in Conjunction With mpMRI for Evaluating Prospective Prostate Cancer Risk

The goal of this observational study is to learn if Ga-68 PSMA PET/MRI can better diagnose prostate cancer than mpMRI in males between 40 to 85 years old who is naive to prostate biopsy and is suspicious for prostate cancer by elevated PSA or lower urinary tract symptoms. The main questions it aims to answer are: Does PSMA PET/MRI have better PPV and NPV than mpMRI to diagnose prostate cancer? Does lesion location concordance in PSMA PET and MRI effect diagnosis accuracy?

Clinical Evaluation of Lutetium-177 Labeled BQ7876 for Targeting of Prostate-Specific Membrane Antigen

The study should evaluate the biological distribution of [177Lu]Lu-BQ7876 in patients with prostate cancer. The objective are: To evaluate the content of [177Lu]Lu-BQ7876 in the blood of patients with prostate cancer at different time points after a single intravenous administration. To assess the distribution of [177Lu]Lu-BQ7876 in normal tissues and tumors at different time points. To evaluate dosimetry of [177Lu]Lu-BQ7876. To study the safety and tolerability of the drug [177Lu]Lu-BQ7876 after a single injection.

A Multicenter Study Evaluating the Diagnostic Value of 68Ga-MY6349 PET/CT for Prostate Cancer

The main objective of this research is to develop and evaluate new PET imaging agents with high sensitivity and specificity for prostate cancer and other aggressive tumors. Specifically, the research focuses on improving upon existing prostate cancer imaging methods, such as PSA tests and PSMA PET/CT, which have limitations in sensitivity, specificity, and the ability to provide comprehensive tumor information，and aims to create a novel PET probe targeting Trop2, an antigen highly expressed in multiple cancer types, to enable in vivo, whole-tumor assessment. This would support early diagnosis, more precise staging, and effective monitoring of cancer therapy.

Usefulness of Tumor Heterogeneity Assessment in Patients With MCRPC Undergoing Radioligand Therapy With 177LU-PSMA-617 Using Serial 18F-DCFPYL, 18F-FDG and 18F-Fluciclovine PET/CT Predicting Clinical Outcome

The imaging analysis will consist in obtaining quantitative measurements of lesion uptake on the pre- and post-LuPSMA RLT (lesion and whole-body SUVmax, SUVmean and tumor volume) at each time point on all PET/CT scans. PET metrics at the lesion- and whole-body level will be compared among different PET radiopharmaceuticals at the same time point, and changes over time will be assessed.

Subjects will be treated in cohorts at three sequential target absorbed radiation dose levels, where the dose level for the next cohort will be determined by a prespecified decision tree for escalation/de-escalation, according to the accelerated Time-to-Event Bayesian Optimal Interval Design (TITE-BOIN) approach.

The VOYAGER Study is an interventional, non-randomized, single-arm, dose escalation trial with the goal of determining the safety of TheraSphere PCa device in patients with clinically localized prostate cancer across US-based centers.

Radium-223 Combined With Dexamethasone as First-line Therapy in Patients With Metastatic Castrate Resistant Prostate Cancer

The purpose of this study is to determine whether an oral drug called dexamethasone (a corticosteroid) given together with radium-223 may control PSA levels and reduce side effects during radium-223 treatment. Corticosteroids are anti-inflammatory medicines prescribed for a broad range of conditions and are widely used in conjunction with chemotherapy treatments for cancer. Prior research studies have shown that dexamethasone reduces PSA levels by lowering the production of androgens (i.e. male hormones) and improves overall tolerance for cancer-fighting drugs and therapies. Up to 24 men being treated with radium-223 at University Health Network will be enrolled into this study. If the study is positive, it might offer an improved quality of life and extended survival.

Feasibility Study on the Use of PET-MRI / 68Ga-PSMA Imaging for HIFU-focal Treatment in the Event of Recurrent Prostate Cancer After Radiotherapy - PSMA Study

A significant proportion of patients with localized prostate cancer, and treated for curative intent by radiotherapy, have a local recurrence. Among these patients with local recurrence, few receive curative remedial treatment but most of them are treated with palliative hormonal therapy without any chance of long-term recovery.

LCCC 1917: Dose Escalation of Low and Intermediate Risk Localized Prostate Cancer Using 68Ga-HBED-CC PSMA-PET/MRI and Stereotactic Body Radiotherapy

The goal of this study is to determine the safety of using PSMA-PET/mpMRI to define radiotherapy targets, while meeting all current planning criteria. This study also intends to determine the feasibility of performing stereotactic body radiation therapy with simultaneous integrated boost on the dominant intra-prostatic lesions while meeting all current planning criteria.

The Role of 68Gallium PSMA-11 in Biochemical Recurrence in Prostate Cancer and in Known Metastatic Prostate Cancer and in the Evaluation of Treatment Response After Salvage Therapy

The goal of this research is to examine the ability of Gallium-68 (68Ga) Prostate-Specific Membrane Antigen-11 (PSMA-11) positron emission tomography/computed tomography (PET/CT) to detect sites of recurrent prostate cancer in patients with biochemical recurrence previously treated with radical prostatectomy (RP) or external beam radiation (EBRT) and to assess treatment response to subsequent salvage therapy.

A Randomized Phase II Study of 177 LuPSMA-617 vs Docetaxel in Patients With Metastatic Castration-Resistant Prostate Cancer and PSMA-Positive Disease

177Lu PSMA 617 is a new type of therapy which is designed to deliver high doses of radiation directly to prostate cancer sites in the body. The purpose of this study is to find out whether 177Lu PSMA 617can slow the growth of prostate cancer compared to standard chemotherapy treatment

Head-to-head Comparison of 68Ga-PSMA-11 and 18F-PSMA-1007 for the Detection of Recurrent Prostate Cancer in PSMA-ligand PET/CT

The aim of this study is to provide robust data on the head-to-head comparison of the two ligands of the prostate specific membrane antigen (PSMA) available in Switzerland for positron emission tomography (PET)-imaging, i.e. 68Ga-PSMA-11 und 18F-PSMA-1007.

Retrospective Analysis of 68Ga-PSMA-PET in Patients With Prostate Cancer: Experience From Brazil (LACOG pPR015)

Gallium-68-prostate-specific membrane antigen (68Ga-PSMA) positron emission tomography (PET) has been increasingly used in the management of PCa in Brazil. Thus, the detection of metastatic lesions is improved over traditional methods e.g. MRI and the diagnosis of mCSPC patients has been proportionally increasing. Due to a lack of guidelines and clinical trials including 68Ga-PSMA-PET imaging, the management of these patients is extrapolated from data based on conventional imaging. Treatment decision and duration of treatment for mCSPC patients based on 68Ga-PSMA-PET imaging is currently unknown. 68Ga-PSMA-PET allows a diagnosis of a different set of low volume oligo-metastatic prostate cancer patients. Based on that, a new gap has been built up, since there are no standards of how those patients are managed and how they respond to conventional therapies, to metastasis direct therapy or even if they could be spared of any treatment, reducing costs and toxicities. This patient population has not been included in clinical trials and its critical to generate information on the diagnosis, treatment and outcome of these patients in clinical practice.

Phase 1b/2 Study of Combination 177Lu Girentuximab Plus Cabozantinib and Nivolumab in Treatment naïve Patients With Advanced Clear Cell RCC

To learn if giving 177Lu girentuximab in combination with cabozantinib plus nivolumab can help to control advanced clear cell renal cell carcinoma (ccRCC).

A Randomized Phase III Trial Evaluating the Efficacy and Safety of Standard of Care +/- 177Lu-PSMA617 in de Novo Metastatic Hormone-sensitive Prostate Cancer Patients Having a PSA≥0.2 ng/mL at 6-8 Months After Systemic Treatment Initiation

PEACE-6 Poor Responders is an international, multicenter, open-label, controlled, randomized, phase III trial to evaluate the efficacy and safety of 177Lu-PSMA-617 when administered on top of the ongoing standard systemic treatment compared to standard systemic treatment alone in patients with de novo metastatic hormone-sensitive prostate cancer (mHSPC) who do not present with a satisfactory response characterized by a serum prostatic specific antigen (PSA) level of ≥ 0.2 ng/mL at 6 to 8 months after systemic treatment initiation for mHSPC (i.e. poor responders) in the absence of evidence of cancer progression (including a rising PSA level).

A Randomised, Multi-centre, Intra-patient Imaging and Dosimetry Crossover Study of Lutetium (177Lu) rhPSMA-10.1 and Lutetium (177Lu) Vipivotide Tetraxetan (Pluvicto®) in Patients With Non-curative Metastatic Prostate Cancer

A randomised, multi-centre, intra-patient imaging and dosimetry crossover study of lutetium (177Lu) rhPSMA 10.1 and lutetium (177Lu) vipivotide tetraxetan (Pluvicto®) in patients with non-curative metastatic prostate cancer