Study of 18F-Thretide PET/CT in Patients With Prostate Cancer

A Study to Assess the Diagnostic Performance of 18F-Thretide PET/CT in Men With Prostate Cancer

This study evaluates the diagnostic performance and safety of 18F-Thretide PET/CT in patients with biopsy proven prostate cancer who has no any form of therapy against prostate caner or suspected recurrence of prostate cancer who have negative or equivocal findings on conventional imaging.

Study Overview

• Status: Completed
• Conditions: Prostate Cancer
• Intervention / Treatment: Drug: A single dose of 7±1 mCi (259±37 MBq) IV injection of 18F-Thretide

Detailed Description

Prostate-specific membrane antigen (PSMA) is overexpressed in most cases of prostate cancer and is potentially associated with metastasis and progression of prostate cancer. Compared with 68Ga, the PET radionuclide 18F exhibits several advantages. 18F-Thretide (18F-labeled PSMA ligand) has been studied for preclinical evaluation and Pilot Clinical Study. This study evaluates the diagnostic performance and safety of 18F-Thretide PET/CT in patients with with biopsy proven prostate cancer who has no any form of therapy against prostate caner or suspected recurrence of prostate cancer who have negative or equivocal findings on conventional imaging.

• Study Type: Interventional
• Enrollment (Actual): 49
• Phase: Phase 2; Phase 1

Contacts and Locations

Study Locations

• China
  • Fujian
    • Fuzhou, Fujian, China, 350005
      • Department of Nuclear Medicine, First Affiliated Hospital of Fujian Medical University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 80 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Male ≥ 18 years of age;
• For patients with newly diagnosed prostate cancer : (1) adult patients with PCa confirmed by biopsy; (2) no any form of therapy against PCa within last three months; (3) planned surgical treatment;
• For patients with suspected recurrence of prostate cancer: (1)Histopathologically confirmed prostate adenocarcinoma per original diagnosis, with subsequent definitive therapy; (2)Suspected recurrence of prostate cancer based on rising PSA after definitive therapy on the basis of: Post-radical prostatectomy: Detectable or rising PSA level ≥ 0.2 ng/mL with a confirmatory PSA ≥ 0.2 ng/mL ; or Post-radiation therapy, cryotherapy, or brachytherapy: Increase in PSA level that is elevated by ≥ 2 ng/mL above the nadir;
• Life expectancy ≥3 months as determined by the investigator;
• Able and willing to provide informed consent and comply with protocol requirements.

Exclusion Criteria:

• Known allergic history to fluoride 18F-Thretide injection and/or 99mTc-MDP or its excipients;
• Patients who cannot tolerate intravenous administration (such as a history of needle sickness or blood sickness);
• Those who are not suitable for or unable to complete PET or other imaging examinations due to special reasons, including claustrophobia and radiophobia, etc.
• Practitioners requiring prolonged exposure to radioactive conditions;
• Serious diseases of the heart, kidney, lung, vascular, nervous and psychiatric systems, immune deficiency diseases and hepatitis/cirrhosis;
• Have been diagnosed with clinical recurrence of prostate cancer;
• Patients receiving ADT treatment or chemotherapy;
• Patients who participated in clinical trials of radiopharmaceuticals within the previous 1 year;
• Participated in other interventional clinical trials within 1 month prior to screening;
• There are other conditions that the researcher considers inappropriate to participate in this study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: 18F-Thretide Injection; 7±1 mCi (259±37 MBq) IV injection of 18F-Thretide	Drug: A single dose of 7±1 mCi (259±37 MBq) IV injection of 18F-Thretide; The patients will be intravenously injected with 18F-Thretide and undergo PET/CT scan at 60~120 min after the injection.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
detection rate at the patient level	The Difference in detection rate of 18F-Thretide PET/CT at the patient level compared with MRI, CT, or bone scanning. Within 60 days following 18F-Thretide PET/CT imaging, either MRI, CT, or bone scanning will be performed.	Within 60 days following 18F-Thretide PET/CT
detection rate at the lesion level	The difference in detection rate of 18F-Thretide PET/CT at the lesion level compared with MRI, CT, or bone scanning. Within 60 days following 18F-Thretide PET/CT, either MRI, CT, or bone scan will be performed	Within 60 days following 18F-Thretide PET/CT
sensitivity and specificity	The sensitivity and specificity of 18F-Thretide PET/CT in the diagnosis of prostate cancer compared with the composite truth standard. Within 60 days following 18F-Thretide PET/CT, either biopsy/surgery, conventional imaging, or locoregional radiation therapy of the 18F-Thretide-suspected lesion(s) will be performed	Within 60 days following 18F-Thretide PET/CT
positive predictive value	The positive predictive value (PPV) of 18F-Thretide PET/CT in the diagnosis of prostate cancer compared with the composite truth standard. Within 60 days following 18F-Thretide PET/CT, either biopsy/surgery, conventional imaging, or locoregional radiation therapy of the 18F-Thretide-suspected lesion(s) will be performed.	Within 60 days following 18F-Thretide PET/CT
Correct detection rate	The correct detection rate (CDR) of 18F-Thretide PET/CT imaging in the diagnosis of prostate cancer compared with the composite truth standard. Within 60 days following 18F-Thretide PET/CT, either biopsy/surgery, conventional imaging, or locoregional radiation therapy of the 18F-Thretide-suspected lesion(s) will be performed	Within 60 days following 18F-Thretide PET/CT
Safety evaluation	The safety will be assessed by the number and percentage of patients with adverse events; Adverse events were categorized using the Common Toxicity Criteria for Adverse Events 5.0.	Within 7 days following 18F-Thretide PET/CT

Collaborators and Investigators

• Sponsor: First Affiliated Hospital of Fujian Medical University

Study record dates

Study Major Dates

• Study Start (Actual): August 20, 2022
• Primary Completion (Actual): March 31, 2023
• Study Completion (Actual): September 1, 2023

Study Registration Dates

• First Submitted: August 4, 2022
• First Submitted That Met QC Criteria: August 23, 2022
• First Posted (Actual): August 25, 2022

Study Record Updates

• Last Update Posted (Actual): September 21, 2023
• Last Update Submitted That Met QC Criteria: September 16, 2023
• Last Verified: September 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms; Urogenital Neoplasms; Neoplasms by Site; Genital Neoplasms, Male; Prostatic Diseases; Urogenital Diseases; Male Urogenital Diseases; Genital Diseases, Male; Genital Diseases; Prostatic Neoplasms
• Other Study ID Numbers: FirstAHFujian-PSMA

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No