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

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

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03334500
Enrollment
30
Registered
2017-11-07
Start date
2017-07-14
Completion date
2027-02-11
Last updated
2026-02-20

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

Conditions

Prostate Cancer

Brief summary

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.

Interventions

Fluorine-18 labeled FluorThanatrace \[18F\]FTT can be synthesized with high specific activity so the quantity of mass injected with the radiopharmaceutical is \< 10 μg.

DRUGPoly(ADP Ribose) Polymerase 1

Poly(ADP-ribose) polymerase (PARP) is a family of enzymes involved in base excision repair (the repair of DNA single-strand breaks) and alternative end joining (repair of DNA double-strand breaks). The molecular basis of PARP1 inhibitor function may depend on the dual roles of PARP1 as a modulator of gene transcription in addition to DNA damage repair 3.

Sponsors

Abramson Cancer Center at Penn Medicine
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

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.

Design outcomes

Primary

MeasureTime frame
Number of adverse events3 years

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORDan Pryma, MD

Abramson Cancer Center at Penn Medicine

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026