Evaluating in Vivo PARP-1 Expression With 18F-FluorThanatrace Positron Emission Tomography (PET/CT) in Prostate Cancer

Abramson Cancer Center at Penn Medicine

Status and phase: Active, not recruiting; Early Phase 1

Conditions: Prostate Cancer

Treatments: Drug: Poly(ADP Ribose) Polymerase 1; Device: [18F]FluorThanatrace

Study type: Interventional

Funder types: Other

Identifiers

NCT03334500

UPCC 13817

Details and patient eligibility

About

Men with a history of prostate cancer may be in this study. Subjects recommended for a prostatectomy or oligometastectomy will undergo PET/CT imaging using a novel radiotracer [18F]FTT to evaluate PARP-1 activity in known or suspected sites of primary or metastatic disease. Imaging will be compared with pathology results, including additional research assays when possible.

Enrollment: 30 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Participants will be ≥ 18 years of age

• Biopsy proven prostate cancer

• Must meet one of the following criteria:

  1. At least two tissue cores containing at least 50% tumor (per pathology report) OR
  2. At least one lesion that is 1 cm or greater in size by standard imaging (e.g. ultrasound, MRI, CT). Only one type of imaging is required to show a lesion of 1 cm or greater in order for the patient to be eligible to participate in this study.

• Recommended for clinically indicated radical prostatectomy or oligometastectomy

• Willing to allow use or collection of pathology tissue for the purposes of research from either clinical biopsy or surgical procedure (if adequate tissue is available)

• Participants must be informed of the investigational nature of this study and be willing to provide written informed consent and participate in this study in accordance with institutional and federal guidelines prior to study-specific procedures.

Exclusion criteria

• Inability to tolerate imaging procedures in the opinion of an investigator or treating physician
• Serious or unstable medical or psychological conditions that, in the opinion of the investigator, would compromise the subject's safety or successful participation in the study.
• Only individuals (aged 18 or over) who can understand and give informed consent will be approached to participate in this study. Individuals who are considered to be mentally disabled will not be recruited for this study. All subjects must understand and be able to give informed consent. We will not be using specific methods to assess decisional capacity. Economically disadvantaged persons will not be vulnerable to undue influence, as this study offers no compensation. All individuals will be told that their choice regarding study participation will in no way change their access to clinical care. This should negate any undue influence or coercion. Women, children, fetuses, neonates, or prisoners are not included in this research study.

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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30 participants in 3 patient groups

Cohort 1

Experimental group

Description:

Gleason 6 (n=10)

Treatment:

Device: [18F]FluorThanatrace

Drug: Poly(ADP Ribose) Polymerase 1

Cohort 2

Experimental group

Description:

Gleason 7-8 (n=10)

Treatment:

Device: [18F]FluorThanatrace

Drug: Poly(ADP Ribose) Polymerase 1

Cohort 3

Experimental group

Description:

Gleason 9 or oligometastic disease (n=10)

Treatment:

Device: [18F]FluorThanatrace

Drug: Poly(ADP Ribose) Polymerase 1