Trial Outcomes & Findings for 18F-fluciclovine PET in Metastatic Castration Resistant Prostate Cancer Treated With Life Prolonging Therapies (NCT NCT04158245)

NCT ID: NCT04158245

Last Updated: 2025-09-22

Results Overview

To describe the 18F-fluciclovine PET findings for patients with mCRPC prior to starting treatment with Life Prolonging Therapies, and at 12 weeks after Life Prolonging Therapies treatment initiation. We have 4 categories that can be seen in the scan to measure the metabolic response using PERSIST 1.1, 1)stable disease, 2)progressive disease, 3)partial response and 4)complete response.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

9 participants

Primary outcome timeframe

12 weeks

Results posted on

2025-09-22

Participant Flow

Participant milestones

Participant milestones
Measure
18F-fluciclovine PET Scan
Single intravenous administration of 18F-fluciclovine for positron emission computed tomography (PET) Scan. 18F-fluciclovine PET Scan: The use of 18F-fluciclovine PET scanning will allow a more sensitive assessment of mCRPC patients at the initiation of systemic therapy and changes observed in 18F-fluciclovine PET will correlate better with the serologic changes in prostate-specific antigen (PSA), allowing superior disease monitoring, as compared to conventional imaging modalities. In addition, 18F-fluciclovine PET will detect heterogeneity in disease response and thus identify potential lesions amenable to targeted therapy.
Overall Study
STARTED
9
Overall Study
COMPLETED
8
Overall Study
NOT COMPLETED
1

Reasons for withdrawal

Reasons for withdrawal
Measure
18F-fluciclovine PET Scan
Single intravenous administration of 18F-fluciclovine for positron emission computed tomography (PET) Scan. 18F-fluciclovine PET Scan: The use of 18F-fluciclovine PET scanning will allow a more sensitive assessment of mCRPC patients at the initiation of systemic therapy and changes observed in 18F-fluciclovine PET will correlate better with the serologic changes in prostate-specific antigen (PSA), allowing superior disease monitoring, as compared to conventional imaging modalities. In addition, 18F-fluciclovine PET will detect heterogeneity in disease response and thus identify potential lesions amenable to targeted therapy.
Overall Study
Lost to Follow-up
1

Baseline Characteristics

18F-fluciclovine PET in Metastatic Castration Resistant Prostate Cancer Treated With Life Prolonging Therapies

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
18F-fluciclovine PET Scan
n=9 Participants
Single intravenous administration of 18F-fluciclovine for PET Scan. 18F-fluciclovine PET Scan: The use of 18F-fluciclovine PET scanning will allow a more sensitive assessment of mCRPC patients at the initiation of systemic therapy and changes observed in 18F-fluciclovine PET will correlate better with the serologic changes in PSA, allowing superior disease monitoring, as compared to conventional imaging modalities. In addition, 18F-fluciclovine PET will detect heterogeneity in disease response and thus identify potential lesions amenable to targeted therapy.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
6 Participants
n=5 Participants
Age, Categorical
>=65 years
3 Participants
n=5 Participants
Age, Continuous
62.56 Years
STANDARD_DEVIATION 11.07 • n=5 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
Sex: Female, Male
Male
9 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
4 Participants
n=5 Participants
Race (NIH/OMB)
White
5 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
United States
9 participants
n=5 Participants
Haemoglobin
12.23 g/dL
STANDARD_DEVIATION 1.73 • n=5 Participants
Platelets
257.56 cells/mcL
STANDARD_DEVIATION 105.58 • n=5 Participants
Calcium
9.31 mg/dL
STANDARD_DEVIATION 0.50 • n=5 Participants
Creatinine
1.15 mg/dL
STANDARD_DEVIATION 0.56 • n=5 Participants
Alkaline phosphatase
95.78 IU/L
STANDARD_DEVIATION 35.82 • n=5 Participants
Prostate-Specific Antigen
150 ng/mL
STANDARD_DEVIATION 399 • n=5 Participants
Testosterone
Testosterone undetectable
8 Participants
n=5 Participants
Testosterone
Testosterone detectable
1 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 12 weeks

To describe the 18F-fluciclovine PET findings for patients with mCRPC prior to starting treatment with Life Prolonging Therapies, and at 12 weeks after Life Prolonging Therapies treatment initiation. We have 4 categories that can be seen in the scan to measure the metabolic response using PERSIST 1.1, 1)stable disease, 2)progressive disease, 3)partial response and 4)complete response.

Outcome measures

Outcome measures
Measure
18F-fluciclovine PET Scan
n=8 Participants
Single intravenous administration of 18F-fluciclovine for PET Scan. 18F-fluciclovine PET Scan: The use of 18F-fluciclovine PET scanning will allow a more sensitive assessment of mCRPC patients at the initiation of systemic therapy and changes observed in 18F-fluciclovine PET will correlate better with the serologic changes in PSA, allowing superior disease monitoring, as compared to conventional imaging modalities. In addition, 18F-fluciclovine PET will detect heterogeneity in disease response and thus identify potential lesions amenable to targeted therapy.
Changes in 18F-fluciclovine PET Scan for Patients With mCRPC on Treatment With Life Prolonging Therapies
Stable disease
5 Participants
Changes in 18F-fluciclovine PET Scan for Patients With mCRPC on Treatment With Life Prolonging Therapies
Progressive disease
0 Participants
Changes in 18F-fluciclovine PET Scan for Patients With mCRPC on Treatment With Life Prolonging Therapies
Partial response
3 Participants
Changes in 18F-fluciclovine PET Scan for Patients With mCRPC on Treatment With Life Prolonging Therapies
Complete response
0 Participants

PRIMARY outcome

Timeframe: 12 weeks

A comparison of 18F-fluciclovine PET with conventional CT and bone scans for patients with mCRPC prior to starting treatment with life prolonging therapies, and at 12 weeks after starting life prolonging therapies; and to correlate these changes with PSA response and progression after starting life prolonging therapies.

Outcome measures

Outcome measures
Measure
18F-fluciclovine PET Scan
n=8 Participants
Single intravenous administration of 18F-fluciclovine for PET Scan. 18F-fluciclovine PET Scan: The use of 18F-fluciclovine PET scanning will allow a more sensitive assessment of mCRPC patients at the initiation of systemic therapy and changes observed in 18F-fluciclovine PET will correlate better with the serologic changes in PSA, allowing superior disease monitoring, as compared to conventional imaging modalities. In addition, 18F-fluciclovine PET will detect heterogeneity in disease response and thus identify potential lesions amenable to targeted therapy.
PET Scan vs. Conventional CT and Bone Scan
PET scan positivity
8 Participants
PET Scan vs. Conventional CT and Bone Scan
Conventional CT scan positivity
3 Participants
PET Scan vs. Conventional CT and Bone Scan
Conventional bone scan positivity
8 Participants
PET Scan vs. Conventional CT and Bone Scan
PSA response
3 Participants

Adverse Events

18F-fluciclovine PET Scan

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Brian Lewis

Tulane University

Phone: 504-988-6300

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place