INSIGHT-PCa: MRI- and PHI-Guided Risk-Adapted Strategy for Prostate Cancer Diagnosis
INSIGHT-PCa
Integrated Noninvasive Strategy Guided by Multiparametric MRI and the Prostate Health Index for Risk-Adapted Detection of Clinically Significant Prostate Cancer: A Multicenter Randomized Controlled Trial (INSIGHT-PCa Study)
1 other identifier
interventional
1,432
1 country
1
Brief Summary
Prostate cancer diagnosis based on systematic or MRI-targeted biopsy is associated with substantial overdiagnosis and unnecessary invasive procedures. Although multiparametric MRI improves detection of clinically significant prostate cancer, optimal criteria for biopsy omission-particularly in men with equivocal MRI findings-remain uncertain. The INSIGHT-PCa study is a prospective, multicenter, randomized controlled trial designed to evaluate whether a risk-adapted diagnostic strategy integrating multiparametric MRI and the Prostate Health Index (PHI) can reduce unnecessary prostate biopsies without compromising detection of clinically significant prostate cancer. Participants with suspected prostate cancer will be randomized to either a standard MRI-based diagnostic pathway or an optimized strategy in which biopsy decisions are guided by combined MRI findings and PHI density. The primary objective is to demonstrate non-inferiority in the detection of clinically significant prostate cancer while reducing biopsy utilization and biopsy-related adverse events.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Mar 2026
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 27, 2026
CompletedFirst Posted
Study publicly available on registry
February 10, 2026
CompletedStudy Start
First participant enrolled
March 9, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2029
March 17, 2026
January 1, 2026
1.8 years
January 27, 2026
March 14, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Detection of clinically significant prostate cancer
Proportion of participants diagnosed with clinically significant prostate cancer (Gleason score ≥3+4)
From initial diagnostic evaluation to completion of diagnostic biopsy (up to 8 weeks)
Secondary Outcomes (6)
Detection of clinically insignificant prostate cancer (Gleason score 6)
From initial diagnostic evaluation to completion of diagnostic biopsy (up to 8 weeks)
Proportion of participants in whom prostate biopsy is omitted
From initial diagnostic evaluation to completion of diagnostic biopsy (up to 8 weeks)
Total number of biopsy cores obtained
From initial diagnostic evaluation to completion of diagnostic biopsy (up to 8 weeks)
Biopsy-related adverse events (pain, infection, bleeding)
Within 30 days after prostate biopsy
Cumulative detection of clinically significant prostate cancer over 24 months
Over 24 months of follow-up
- +1 more secondary outcomes
Study Arms (2)
Standard MRI-Based Diagnostic Strategy (Control)
ACTIVE COMPARATORConventional Standard Diagnostic Procedure
INSIGHT-PCa Risk-Adapted Diagnostic Strategy (Experimental)
EXPERIMENTALExperimental Diagnostic Procedure
Interventions
PI-RADS 1-3: PHI density \<0.80 → Biopsy omitted; active surveillance PHI density ≥0.80 → Systematic 12-core TRUS-guided biopsy PI-RADS 4-5: MRI-targeted biopsy alone
Eligibility Criteria
You may qualify if:
- Male, aged 20 years or older
- Serum PSA ≥3.0 ng/mL and ≤20.0 ng/mL and/or abnormal digital rectal -examination
- Biopsy-naïve
- Clinical stage ≤T2 disease
- Ability to provide written informed consent
You may not qualify if:
- Previous prostate biopsy or prostate cancer treatment
- Use of 5-alpha reductase inhibitors within 6 months
- Acute prostatitis or urinary tract infection within 3 months
- Contraindications to MRI
- Contraindications to prostate biopsy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Asan Medical Center
Seoul, South Korea
Related Publications (5)
Siddiqui MM, Rais-Bahrami S, Turkbey B, George AK, Rothwax J, Shakir N, Okoro C, Raskolnikov D, Parnes HL, Linehan WM, Merino MJ, Simon RM, Choyke PL, Wood BJ, Pinto PA. Comparison of MR/ultrasound fusion-guided biopsy with ultrasound-guided biopsy for the diagnosis of prostate cancer. JAMA. 2015 Jan 27;313(4):390-7. doi: 10.1001/jama.2014.17942.
PMID: 25626035RESULTHugosson J, Mansson M, Wallstrom J, Axcrona U, Carlsson SV, Egevad L, Geterud K, Khatami A, Kohestani K, Pihl CG, Socratous A, Stranne J, Godtman RA, Hellstrom M; GOTEBORG-2 Trial Investigators. Prostate Cancer Screening with PSA and MRI Followed by Targeted Biopsy Only. N Engl J Med. 2022 Dec 8;387(23):2126-2137. doi: 10.1056/NEJMoa2209454.
PMID: 36477032RESULTHugosson J, Godtman RA, Wallstrom J, Axcrona U, Bergh A, Egevad L, Geterud K, Khatami A, Socratous A, Spyratou V, Svensson L, Stranne J, Mansson M, Hellstrom M. Results after Four Years of Screening for Prostate Cancer with PSA and MRI. N Engl J Med. 2024 Sep 26;391(12):1083-1095. doi: 10.1056/NEJMoa2406050.
PMID: 39321360RESULTEklund M, Jaderling F, Discacciati A, Bergman M, Annerstedt M, Aly M, Glaessgen A, Carlsson S, Gronberg H, Nordstrom T; STHLM3 consortium. MRI-Targeted or Standard Biopsy in Prostate Cancer Screening. N Engl J Med. 2021 Sep 2;385(10):908-920. doi: 10.1056/NEJMoa2100852. Epub 2021 Jul 9.
PMID: 34237810RESULTAhdoot M, Wilbur AR, Reese SE, Lebastchi AH, Mehralivand S, Gomella PT, Bloom J, Gurram S, Siddiqui M, Pinsky P, Parnes H, Linehan WM, Merino M, Choyke PL, Shih JH, Turkbey B, Wood BJ, Pinto PA. MRI-Targeted, Systematic, and Combined Biopsy for Prostate Cancer Diagnosis. N Engl J Med. 2020 Mar 5;382(10):917-928. doi: 10.1056/NEJMoa1910038.
PMID: 32130814RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Professor, Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
Study Record Dates
First Submitted
January 27, 2026
First Posted
February 10, 2026
Study Start
March 9, 2026
Primary Completion (Estimated)
December 31, 2027
Study Completion (Estimated)
December 31, 2029
Last Updated
March 17, 2026
Record last verified: 2026-01
Data Sharing
- IPD Sharing
- Will not share