- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06116851
Prostate Metabolism, Cancer Risk and Gut Microbiota (PROMIC)
Study Overview
Status
Conditions
Detailed Description
Prostate cancer (PCa) is a significant health care system challenge. PCa is the most common male cancer in Finland and most western countries. Interestingly, although the incidence of indolent (latent) PCa is very similar throughout the globe, there is a remarkable global age-adjusted incidence variation (up to 40-fold difference between highest and lowest incidences).
Epidemiological data suggest that aging in men is associated with neoplastic processes in the prostate but only a subset of men will develop a true malignancy potentially affecting their life-span or quality of life. Genetic factors have a significant effect on PCa risk, but very likely life-style (e.g. diet and physical activity) affect PCa risk as well, but the mechanisms mediating protective or harmful effects of life-style remain unclear.
Gut microbiota, i.e. the collection of microbes colonizing the gastrointestinal tract, has been acknowledged to play significant role in many metabolic pathways and pathogenetic processes in the human body. Although there is some evidence suggesting that gut microbiota affects therapy responses (especially androgen deprivation) in PCa, it´s potential role in prostate carcinogenesis is not well documented. Our previous studies suggest that gut microbiota composition is different in men with and without PCa potentially contributing to the Pca risk, and that changes in steroid hormone synthesis may be one mechanism how gut microbiota affects PCa risk.
PROMIC is a prospective, single center translational multiple cohort study to investigate the association of gut microbiota and PCa. The main aim is to validate our preliminary findings of association between gut microbiota and PCa. We also study metabolic characteristics in the gut, systemic circulation, and prostate tissue in men with different gut microbiota signatures. The study is carried out in Turku University Hospital and University of Turku.
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Peter J. Bostrom, MD, PhD
- Phone Number: +358-2-3135925
- Email: peter.bostrom@tyks.fi
Study Contact Backup
- Name: Tarja Lamminen, PhD
- Email: tarja.lamminen@tyks.fi
Study Locations
-
-
-
Turku, Finland
- Recruiting
- Turku University Hospital
-
Principal Investigator:
- Peter J. Boström, MD, PhD
-
Turku, Finland, 20100
- Recruiting
- University of Turku
-
Contact:
- Peter J Bostrom, MD, PhD
- Phone Number: +358-2-3135925
- Email: peter.bostrom@tyks.fi
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Sub-Investigator:
- Antti Salminen, MD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Suspicion cohort: cohort include clinical suspicion for PCa and indication for PCA diagnostics based on any of the following: 1) elevated PSA (>2.5 ng/ml), 2) palpable prostate tumor/nodule, 3) image finding suggestive of PCa.
Cancer cohort, (RALP): cohort include clinically significant prostate cancer planned to be treated with radical prostatectomy with or without pelvic lymph node dissection.
TURP cohort: cohort includes benign prostate hyperplasia (BPH) planned to be treated with transurethral resection of the prostate (TURP).
Cystectomy cohort: cohort includes bladder cancer planned to be treated with removal of the urinary bladder and prostate (cystoprostatectomy).
Description
Inclusion Criteria:
- Provision of signed and dated informed consent form.
- Ability and stated willingness to comply with all study procedures and availability for the duration of the study.
Exclusion Criteria:
- inability to comply with study procedures or unwillingness to participate in the study.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
suspicion
Inclusion criteria for the suspicion cohort include clinical suspicion for PCa and indication for PCA diagnostics based on any of the following: 1) elevated PSA (>2.5 ng/ml), 2) palpable prostate tumor/nodule, 3) image finding suggestive of PCa. The suspicion cohort will include a total of 300 subjects who will undergo PCa diagnostics including prostate MRI, and transrectal ultrasound (TRUS) guided prostate biopsies. After the diagnostic procedures all subjects are categorized to one of the following groups: 1) subject without PCa, 2) subject with clinically non-significant PCa (ISUP grade 1/Gleason 3+3), 3) clinically significant PCa (ISUP grade >1/>Gleason 3+3). Based on the outcome of the PCa diagnostics and planned clinical treatment, subjects may be eligible to other cohorts as well. |
Prostate MRI scan is performed according to the protocol used in earlier studies (PMID 31158230).
In addition to the PCa diagnostics, the scan will include abdominal imaging to body composition analysis (visceral and subcutaneous fat and psoas muscle).
Baseline blood and urine samples are collected in Turku University Hospital laboratory.
The visit follows routine outpatient clinic protocol.
The results from MRI and laboratory findings are discussed and the potential benefits and harms from prostate biopsies are evaluated.
After a mutual decision, prostate biopsies are performed.
|
cancer (radical prostatectomy) cohort
Inclusion criteria for the cancer cohort include clinically significant prostate cancer planned to be treated with radical prostatectomy with or without pelvic lymph node dissection.
The cancer cohort will include a total of 50 subjects.
|
Baseline blood and urine samples are collected at the time of surgery.
Robotic assisted laparoscopic prostatectomy (RALP) is performed according to routine protocol.
Routine diagnostic histopathological procedures will be followed, and study tissue samples are obtained in the department of pathology.
|
benign/TURP-cohort
Inclusion criteria for the benign (TURP) cohort includes benign prostate hyperplasia (BPH) planned to be treated with transurethral resection of the prostate (TURP).
The benign/TURP-cohort will include a total of 50 subjects.
|
Baseline blood and urine samples are collected the time of surgery.
TURP is performed according to normal protocol.
Routine diagnostic histopathological procedures will be followed in the department of pathology.
Additionally, tissue samples (a total of 10 resection chips) will be collected for study analyses.
Due to the study, no additional tissue samples are removed, i.e. study samples are from the tissues removed as clinically indicated.
|
benign/cystectomy
Inclusion criteria for the benign/cystectomy cohort includes bladder cancer planned to be treated with removal of the urinary bladder and prostate (cystoprostatectomy).
The benign/cystectomy cohort will include a total of 25 subjects.
|
Baseline blood and urine samples are collected at the time of surgery.
Radical cystoprostatectomy is performed according to routine protocol.
Routine diagnostic histopathological procedures will be followed, and study tissue samples are obtained in the department of pathology.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Gut microbiota signature
Time Frame: immediately before prostate biopsy
|
Gut microbiota signature in men with clinically significant prostate cancer, clinically non-significant prostate cancer, and benign prostate histology
|
immediately before prostate biopsy
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Gut metabolomics
Time Frame: immediately before prostate biopsy
|
Metabolic characteristics in the gut in men with different gut microbiota signatures
|
immediately before prostate biopsy
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Systemic circulation metabolomics
Time Frame: immediately before prostate biopsy
|
Metabolic characteristics in the systemic circulation in men with different gut microbiota signatures
|
immediately before prostate biopsy
|
Prostate tissue metabolomics
Time Frame: immediately before prostate biopsy
|
Metabolic characteristics in the prostate tissue in men with different gut microbiota signatures
|
immediately before prostate biopsy
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Peter J. Bostrom, MD, PhD, Turku University Hospital and University of Turku
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 15/1801/2022
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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