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RecruitingNCT06392737Updated Jul 2, 2025

Comparison of MRI Artificial Intelligence-guided cTB Versus Routine cTB in Prostate Cancer Diagnosis

An interventional study of MRI-AI guided cognitive prostate targeted biopsy and Routine cognitive prostate targeted biopsy in Prostate Cancer, sponsored by Peking University First Hospital. Recruiting at 1 site in China. Open to male participants aged 45 Years to 85 Years. Per ClinicalTrials.gov, last updated 2025-07-02.

Sponsored by Peking University First Hospital · Not applicable, Interventional, and Diagnostic

From the registry’s dates

  • Primary completion was expected by Mar 2026, 6 months ago, but the record still lists the study as recruiting.
  • Started May 2024; still recruiting 2 years 5 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
360
Allocation
Randomized
Ages
45 Years to 85 Years
Sex
Male
01

Study summary

The goal of this multicenter clinical trial is to compare the cancer detection rates of MRI artificial intelligence-guided cTB (AI-cTB) and routine cTB, and explore the added value of using AI for the guidance of cTB. The main questions it aims to answer are:

Does AI-cTB promote the accurate diagnosis and treatment of prostate cancer? What's the value of prostate MRI artificial intelligence assistant diagnosis system in developing the best scheme of prostate biopsy? What's the value of prostate MRI artificial intelligence assistant diagnosis system in predicting the pathological results of prostate targeted biopsy? What's the generalizability of the MRI artificial intelligence assistant diagnosis system?

Researchers will compare the cancer detection rates of AI-cTB and routine cTB to explore the added value of using AI for the guidance of cTB.

Participants will:

Receive AI-cTB or routine cTB.

Read the detailed description

Cognitive fusion MRI-guided targeted biopsy (cTB) has been widely used in the diagnosis of prostate cancer (PCa). However, cTB relies heavily on the operator's experience and confidence in MRI readings. Our previously single-center RCT has demonstrated the effectiveness of accurately detecting clinically significant PCa (csPCa). The goal of this clinical trial is to compare the cancer detection rates of MRI artificial intelligence-guided cTB (AI-cTB) and routine cTB, and explore the added value of using AI for the guidance of cTB. This multicenter RCT aims to further validate the ability of MRI artificial intelligence in different institutions and investigate the generalizability of the MRI artificial intelligence assistant diagnosis system.

The main questions it aims to answer are:

Does AI-cTB promote the accurate diagnosis and treatment of prostate cancer? What's the value of prostate MRI artificial intelligence assistant diagnosis system in developing the best scheme of prostate biopsy? What's the value of prostate MRI artificial intelligence assistant diagnosis system in predicting the pathological results of prostate targeted biopsy? What's the generalizability of the MRI artificial intelligence assistant diagnosis system? This multicenter RCT compared the csPCa detection rates of the AI-cTB and routine cTB. Participants were prospectively enrolled at Peking University First Hospital (Beijing, China), Beijing Miyun District Hospital (Beijing, China), and Shanghai East Hospital (Shanghai, China) from May 2024 to April 2025.

Participants were randomly allocated to AI-cTB group and routine cTB group. Researchers will compare the cancer detection rates of AI-cTB and routine cTB to explore the added value of using AI for the guidance of cTB.

Participants will:

Receive AI-cTB or routine cTB.

02

Conditions studied

  • Prostate Cancer

Keywords

  • Prostate cancer
  • Artificial intelligence
  • Cognitive targeted biopsy
  • Diagnosis
  • Multicenter randomized controlled trial
03

In context

Prostatic Neoplasms

6,370 studies on the registry are indexed under Prostatic Neoplasms; 1,400 are open to participants now.

This study's planned enrollment of 360 is above the median of 58 across 4,822 interventional studies indexed under Prostatic Neoplasms.

Browse Prostatic Neoplasms studies →

Lead sponsor

Peking University First Hospital is the lead sponsor of 378 studies on the registry; 178 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
45 Years to 85 Years
Sexes eligible
Male
Accepts healthy volunteers
No

Inclusion criteria

  • The age of the patient is between 45 and 85.
  • Patients with complete multiparametric magnetic resonance imaging (mpMRI) data, qualified image quality control, suspicious lesions, and Prostate Imaging Reporting and Data System version 2.1 (PI-RADS V2.1) of ≥ 3.
  • Patients were in accordance with the indication of prostate biopsy, including patients with suspicious prostate nodes found by digital rectal examination (DRE), the suspicious lesions found by transrectal ultrasound (TRUS) or MRI, total prostate-specific antigen (tPSA) >10ng/mL, tPSA 4-10ng/mL with free-to-total PSA ratio (f/tPSA) \<0.16 or PSA density (PSAD) >0.15.
  • Patients were in accordance with the indication of repeated prostate biopsy (patients with atypical acinar hyperplasia or high-grade intraepithelial neoplasia, especially when the pathological results of multi-needle puncture were as above; re-examination of PSA > 10 ng/ml; re-examination of PSA 4\~10ng/ml, abnormal f/tPSA, abnormal PSAD, abnormal DRE, or imaging abnormalities; for patients with the results of re-examination of PSA 4\~10ng/ml and with close follow-up, PSA for 2 consecutive years > 10ng/ml or PSA volume > 0.75/ml/years). The time interval between the two prostate biopsies should be longer than three months.
  • The targeted prostate biopsy pathological results of above lesions were complete. The time interval between targeted prostate biopsy and prostate mpMRI examination should not exceed one month.
  • Patients with complete clinical information.

Exclusion criteria

Exclusion Criteria:

  • The mpMRI data was unqualified or incomplete.
  • Patients had received radiotherapy, chemotherapy, androgen deprivation therapy, or surgery treatment before prostate mpMRI examination or prostate biopsy.
  • The mpMRI did not find suspicious prostate lesions.
  • Patients were not in accordance with the indication of prostate biopsy or were not received systematic biopsy combined with targeted biopsy.
  • The patients could not cooperate to complete the systematic biopsy combined with targeted biopsy. The patients or their family members refused to participate in this study.
  • Patients with incomplete clinical information.
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
360 participants (estimated)

Study arms

  • Experimental
    MRI-AI-guided cTB (AI-cTB) group

    The trained AI algorithms were embedded into proprietary structured reporting software. Before prostate biopsy, the MR images of patients in the AI-cTB group were uploaded to the AI software. The prostate gland and suspicious lesions were annotated and highlighted by AI software. The urologists who were blinded to the picture archiving and communication system (PACS) and MRI reports read the AI findings at their discretion and then conducted 3-5 core TB at each suspicious lesion, followed by 12 core SB. If there was no suspicious lesion detected by the AI, only SB would be performed.

    Procedure: MRI-AI guided cognitive prostate targeted biopsy

  • Experimental
    Routine cTB group

    For patients in the cTB group, the MR images and reports were viewed by urologists preceding the biopsy. Then 3-5 core cTB were performed, followed by 12 core SB. In patients with negative MRI findings, only SB was performed. When urologists performed biopsies, ultrasound technicians and radiologists were present to provide necessary assistance.

    Procedure: Routine cognitive prostate targeted biopsy

Interventions

  • ProcedureMRI-AI guided cognitive prostate targeted biopsy

    Before prostate biopsy, the MR images of patients in the AI-cTB group were uploaded to the AI software. Then the images with suspicious lesions highlighted by AI software were viewed by urologists. Biopsies were performed under the guidance of TRUS through the transrectal or transperineal route.

  • ProcedureRoutine cognitive prostate targeted biopsy

    Before prostate biopsy, the MR images and reports were viewed by urologists preceding the biopsy. Biopsies were performed under the guidance of TRUS through the transrectal or transperineal route.

06

What researchers measure

Primary outcomes

  1. The clinically significant prostate cancer (csPCa) detection rate for targeted biopsy (TB) and TB combined with systematic biopsy (SB)

    csPCa was defined as PCa with a grade group \> 2 or GS ≥ 7. The reference standard was the pathological results of the combination of TB (AI-cTB or cTB) and SB.

    Time frame: One month after the biopsy procedure.

Secondary outcomes

  1. The PCa detection rate

    The PCa detection rate for targeted biopsy (TB) and TB combined with systematic biopsy (SB).

    Time frame: One month after the biopsy procedure.

  2. The Gleason score (GS) of the biopsy sample

    The Gleason score was reported by senior uropathologists according to the Standards of Reporting for MRI Targeted Biopsy Studies (START) criteria and interpreted according to the recommendations of the International Society of Urological Pathology (ISUP) Grade Group.

    Time frame: One month after the biopsy procedure.

  3. The GS of radical prostatectomy (RP) specimens

    The overall grade was assigned based on the part with the highest Gleason score according to the recommendations of the ISUP

    Time frame: One month after the biopsy procedure.

07

Study locations

1 of 1 sites recruiting
  • Peking University First Hospital
    Beijing, Beijing Municipality 100034, China
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 2, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06392737
Lead sponsor
Peking University First Hospital
Responsible party
LIU Yi (Associate chief physician, Peking University First Hospital) — Principal investigator
First posted
Apr 30, 2024
Start date
May 1, 2024
Primary completion
Mar 31, 2026 (estimated)
Completion
Apr 30, 2026 (estimated)
Last update
Jul 2, 2025

Study contacts

Yi LIU
Contact
liuyipkuhsc@163.com
+86 13611035261
Yi LIU
principal investigator · Peking University First Hospital

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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