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18F-DCFPyL PET/CT Impact on Treatment Strategies for Patients With Prostate Cancer

IMPACT OF 18F-DCFPyL PET/CT ON INITIAL AND SUBSEQUENT TREATMENT STRATEGIES OF PATIENTS WITH PROSTATE CANCER (PROSPYL)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04390880
Acronym
PROSPYL
Enrollment
239
Registered
2020-05-18
Start date
2020-04-07
Completion date
2021-08-31
Last updated
2025-05-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate Cancer

Keywords

Prostate cancer, PET/CT

Brief summary

The main purpose of this phase II trial study is to determine whether a positron emission tomography (PET)/computed tomography (CT) scan using 18F-DCFPyL affects the clinical management plan in Veterans. In this study, the management plan prior to and after 18F-DCFPyL PET/CT will be recorded by specific questionnaires and corresponding changes in management will be analyzed. The scan will be used to see how the disease has spread. Both the treatment strategies and probable disease outcomes as relevant to clinical endpoints will be assessed. This study is open to Veterans only.

Interventions

DRUG18F-DCFPyL

Study participants will receive intravenous administration of 18F-DCFPyL and undergo a PET/CT imaging study. Patients may be reenrolled in the study, if 18F-DCFPyL PET/CT is performed for subsequent management decision.

Sponsors

VA Greater Los Angeles Healthcare System
Lead SponsorFED

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants who fulfill criteria for initial staging or restaging as outlined below: 1. Initial treatment strategy decisions (initial staging) All participants with histologically proven prostate cancer or strong suspicion of prostate adenocarcinoma based on very high PSA levels (\>50 ng/mL) who require an initial treatment/management decision who may be candidate for any of the following strategies: A) Surgery B) External radiation therapy (RT) C) Other focal therapies D) Systemic medical treatment E) Watchful waiting 2. Assessment for Subsequent treatment strategy (restaging), any of the following: A) Participants with biochemical recurrence who are potential candidates for any salvage treatment. Biochemical recurrence is defined by rising PSA after definitive therapy with prostatectomy or radiation therapy, as any of the following: 1. Post radical prostatectomy (RP): PSA equals to or greater than 0.2 ng/mL measured more than 6 weeks after RP 2. Post-radiation therapy : Nadir + greater than or equal to 2 ng/mL rise in PSA B) Participants with known prostate cancer who undergo restaging because of new symptoms C) Participants with known metastatic prostate cancer who undergo restaging because of rising PSA with negative or inconclusive conventional imaging D) Participants with known prostate cancer who are treated medically or with RLT in whom response to treatment is assessed * Capability to provide written informed consent * Able to remain still for duration of each imaging procedure (about 30 minutes) \* Participants may be reenrolled in the study, if 18F-DCFPyL PET/CT is performed for subsequent management decision.

Exclusion criteria

* Less than 18 years-old at the time of radiotracer administration * Inability to complete the needed investigational and standard-of-care imaging examinations due to other reasons (severe claustrophobia, radiation phobia, etc.) * Any additional medical condition, serious concurrent illness, or other extenuating circumstance that, in the opinion of the Investigator, may significantly interfere with study compliance. * Inability to provide written informed consent

Design outcomes

Primary

MeasureTime frameDescription
PRIMARY OBJECTIVES: I. To Determine the Impact of 18F-DCFPyL PET/CT on Initial and Subsequent Treatment Strategies of Patients With Prostate Cancer.6 monthsthe percentage of patients whose management was changed after PSMA PET/CT

Countries

United States

Participant flow

Participants by arm

ArmCount
PET/CT Arm
Subjects receive a PET/CT scan. 18F-DCFPyL: Study participants will receive intravenous administration of 18F-DCFPyL and undergo a PET/CT imaging study. Patients may be reenrolled in the study, if 18F-DCFPyL PET/CT is performed for subsequent management decision.
239
Total239

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicPET/CT Arm
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
206 Participants
Age, Categorical
Between 18 and 65 years
33 Participants
Race (NIH/OMB)
American Indian or Alaska Native
5 Participants
Race (NIH/OMB)
Asian
5 Participants
Race (NIH/OMB)
Black or African American
86 Participants
Race (NIH/OMB)
More than one race
4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
32 Participants
Race (NIH/OMB)
White
107 Participants
Region of Enrollment
United States
239 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
239 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 239
other
Total, other adverse events
0 / 239
serious
Total, serious adverse events
0 / 239

Outcome results

Primary

PRIMARY OBJECTIVES: I. To Determine the Impact of 18F-DCFPyL PET/CT on Initial and Subsequent Treatment Strategies of Patients With Prostate Cancer.

the percentage of patients whose management was changed after PSMA PET/CT

Time frame: 6 months

ArmMeasureValue (NUMBER)
PET/CT ArmPRIMARY OBJECTIVES: I. To Determine the Impact of 18F-DCFPyL PET/CT on Initial and Subsequent Treatment Strategies of Patients With Prostate Cancer.66.2 Percent

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026