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Identifisering av prostatakreftrisiko i en multi-etnisk kohort: en prospektiv, USA-basert multisenter valideringsstudie av Proclarix (PRIME)

23. september 2026 oppdatert av: Sequenom, Inc.

The study is a prospective, multi-center, single cohort study involving up to 10 urological clinics in the US. After provision of informed consent, up to 20 mL of whole blood will be collected from each subject. The samples will be blinded and sent to Labcorp for evaluation using the Proclarix® assay. If a prostate biopsy is performed, it will be performed according to standard clinical practice of the urologist (systematic, targeted, or combined biopsy with a transrectal or transperineal approach with or without prior magnetic resonance imaging (MRI)). A minimum of 10 cores is required if a systematic biopsy is performed. Histopathological examination of the biopsy specimen will be performed according to the established local practice. A csPCa is defined as ISUP Grade Group ≥2 detected on biopsy.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Prostate cancer remains a leading cause of cancer-related morbidity and mortality in men worldwide, with significant disparities in incidence and outcomes across different ethnic groups with black men being affected by prostate cancer earlier, more frequently and with more aggressive disease. Current risk stratification tools often lack the precision needed to effectively assess and predict prostate cancer risk in diverse populations.

Proclarix® is a blood-based test that addresses the problem of prostate cancer (PCa) overdiagnosis by indicating the risk of clinically significant disease. It is comprised of two novel biomarkers, thrombospondin 1 (THBS1) and cathepsin D (CTSD), and is combined with total prostate-specific antigen (tPSA), free PSA (fPSA) and age. A software algorithm returns a risk score that can be used as an aid in the identification of clinically significant PCa (csPCa), defined as International Society of Urological Pathology (ISUP) Grade Group ≥ 2. Proclarix® has been developed and validated on 955 men, in majority of Caucasian background with 90% sensitivity, 43% specificity, 95% negative predictive value (NPV) and 25% positive predictive value (PPV). The validation performance established on German and Austrian patients has been fully confirmed in other European populations: the United Kingdom, Spain, Denmark, Italy and Switzerland.

To be used broadly, confirmation of Proclarix® performance in patients from diverse ethnic backgrounds requires further investigation.

Studietype

Observasjonsmessig

Registrering (Antatt)

500

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Forente stater
    • California
      • San Diego, California, Forente stater, 92123
    • Idaho
      • Meridian, Idaho, Forente stater, 83642
        • Rekruttering
        • Idaho Urologic Institute
        • Ta kontakt med:
        • Ta kontakt med:
        • Hovedetterforsker:
          • Joseph Williams, MD
    • Kentucky
      • Bowling Green, Kentucky, Forente stater, 42101
        • Rekruttering
        • Graves Gilbert Clinic
        • Ta kontakt med:
        • Ta kontakt med:
        • Hovedetterforsker:
          • Diego Mastronardi, MD
    • Maryland
      • Hanover, Maryland, Forente stater, 21076
        • Rekruttering
        • Chesapeake Urology Associates
        • Hovedetterforsker:
          • Kaiser Robertson, MD
        • Ta kontakt med:
      • Towson, Maryland, Forente stater, 21204
        • Rekruttering
        • Chesapeake Urology Associates
        • Hovedetterforsker:
          • Brian Neuman, MD
        • Ta kontakt med:
    • New York
      • Middletown, New York, Forente stater, 10941
    • South Carolina
      • Myrtle Beach, South Carolina, Forente stater, 29572

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

40 år til 75 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Mann

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Approximately 500 subjects will be enrolled in this study, of which approximately 400 subjects will have a tPSA value of 4-10 ng/mL and 100 subjects will have a tPSA of 2-<4 ng/mL.

Beskrivelse

Inclusion Criteria:

  1. Subject is male ≥40 and ≤75 years of age at the time of enrollment;
  2. Subject provides a signed and dated informed consent;
  3. Subject has a SOC tPSA of 2-10 ng/mL inclusive within 90 days of the study blood draw;
  4. Subject is presenting to the clinic to discuss a potential prostate biopsy;
  5. Subject agrees to provide all diagnostic test results throughout the study; and
  6. Subject agrees to provide blood for Proclarix® and phi testing at the Screening Visit.

7 Study blood sample will be collected prior to MRI (if conducted) and prior to the biopsy.

Exclusion Criteria

  1. Previous diagnosis of prostate cancer;
  2. Treatment with a medication classified as a 5α-reductase-inhibitor at any time in the 6 months prior to study blood collection;
  3. Acute or chronic urinary tract infection within 3 months of the study blood collection;
  4. Men with an indwelling catheter or intermittent self-catheterization within 30 days of the study blood collection;
  5. Digital Rectal Exam (DRE) or transurethral manipulation (e.g. cystoscopy, catheterization) the same day and prior to the study blood collection;
  6. Men who had an invasive urological procedure for benign prostate hyperplasia/obstruction (e.g. transurethral resection of the prostate (TURP), Holmium Laser Enucleation of the Prostate (HoLEP), Thulium laser enucleation of the prostate (ThuLEP), aquablation, prostatic artery embolization, Rezum, laser vaporization, etc.) or biopsy of the prostate within 6 months prior to the study blood collection;
  7. Subject is not able to read or comprehend the informed consent form;
  8. Previous enrollment in this protocol with valid biopsy results; or
  9. Men who had an MRI of the prostate within 90 days prior to the study blood collection.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: CASE_ONLY
  • Tidsperspektiver: PROSPECTIVE

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
Prostate cancer suspected

Subjects with an elevated PSA (2-10) planning to undergo prostate biopsy
Diagnostisk test: Proclarix

Proclarix® is a blood-based test that addresses the problem of prostate cancer (PCa) overdiagnosis by indicating the risk of clinically significant disease. It is comprised of two novel biomarkers, thrombospondin 1 (THBS1) and cathepsin D (CTSD), and is combined with total prostate-specific antigen (tPSA), free PSA (fPSA) and age.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Assess the clinical performance of Proclarix® in a United States (US) cohort when compared to the biopsy results.
Tidsramme: From enrollment to the collection of prostate biopsy results at 90 days

Evaluate Proclarix®'s clinical performance, specifically NPV to predict the absence of csPCa on prostate biopsy.
From enrollment to the collection of prostate biopsy results at 90 days

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Evaluate Proclarix's clinical ability to correlate with and add to the results of other diagnostic tests performed as standard of care (i.e., MRI, ultrasound, etc.)
Tidsramme: From enrollment to collection of biopsy results at 90 days

Compare study test results to SOC screening and diagnostic tests.
From enrollment to collection of biopsy results at 90 days
Assess Proclarix®'s clinical performance compared with percent free PSA (%fPSA), the Prostate Health Index (phi), and a risk calculator as proposed by the American Urological Association (AUA) guidelines.
Tidsramme: From enrollment to collection of biopsy results at 90 days

Compare other validated study endpoints to study test results.
From enrollment to collection of biopsy results at 90 days

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Sequenom, Inc.

Samarbeidspartnere

Labcorp Corporation of America Holdings, Inc

Etterforskere

  • Hovedetterforsker: Neil Shore, MD, Carolina Urologic Research Center

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

3. april 2026

Primær fullføring (Antatt)

31. mars 2027

Studiet fullført (Antatt)

31. mars 2027

Datoer for studieregistrering

Først innsendt

14. april 2026

Først innsendt som oppfylte QC-kriteriene

14. april 2026

Først lagt ut (Faktiske)

22. april 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

28. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

23. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • SQNM-PRO-401

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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