- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06001619
Prostate Medication, Metabolism and Gut Microbiota (PROMED)
Study Overview
Status
Conditions
Intervention / Treatment
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, is acknowledged to play significant role in many metabolic pathways and pathogenic 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 and that changes in steroid hormone synthesis may be one mechanism how gut microbiota affects PCa risk.
Study Type
Enrollment (Estimated)
Phase
- Phase 4
Contacts and Locations
Study Contact
- Name: Peter Bostrom, MD, FEBU
- Phone Number: +35823135925
- Email: peter.bostrom@tyks.fi
Study Locations
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Turku, Finland, 20100
- Recruiting
- Turku University Hospital
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Contact:
- Peter Bostrom, MD
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Principal Investigator:
- Peter Bostrom, MD
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Turku, Finland, 20100
- Recruiting
- University of Turku
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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
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
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:
- Any history of a fecal transplantation.
- Recent (within 3 months or still symptomatic) gastroenteritis.
- Antibiotic treatment within 3 months (expect for antibiotic prophylaxis related to prostate biopsies).
- Inability to comply with the protocol of unwillingness to participate in the study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Prostatic hyperplasia
Inclusion criteria for the BPH cohort includes clinical decision to initiate treatment of benign prostate hyperplasia (BPH) with 5-alpha-reductase inhibitors (finasteride, dutasteride, or combination of dutasteride and tamsulosin).
Before starting the medication, size of the prostate has been measured with TRUS (transrectal ultrasound).
The BPH cohort will include a total of 50 subjects and the study samples (gut microbiota, metabolite sampling) will be collected prior the start of the 5-alpha- reductase inhibitors and after 2 months of medical therapy.
At this stage, PSA is determined from blood sample and the size of the prostate is measured with transrectal ultrasound (TRUS).
In addition, after 6 months, PSA and prostate size measurements are repeated.
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The dosages prostatic hyperplasia medication: dutasteride 0,5 MG x1 or finasteride 5 MG x1 or combination of dutasteride and tamsulosin 0,5/0,4 MG x1.
Other Names:
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Experimental: Prostatic cancer
Inclusion criteria for the cancer cohort include a clinical decision to initiate PCa treatment with androgen deprivation therapy (ADT) with LHRH antagonist (degarelix).
This may include either treatment of a metastatic disease with definite ADT or adjuvant ADT to external beam radiation of the prostate.
The cancer cohort will include a total of 50 subjects and the study samples (gut microbiota, metabolite sampling) will be collected prior the start of the ADT and after 2 months of medical therapy.
In addition, after 2 and 6 months, PSA measurement is repeated.
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The starting dose in prostatic cancer patient cohort of LHRH antagonist degarelix is 120 MGx2 and the maintenance dose is 80 MGx1.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Gut microbiota signature before 5-ARI therapy
Time Frame: before starting prostate 5-ARI medication
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Gut microbiota signature before 5-ARI therapy
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before starting prostate 5-ARI medication
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Gut microbiota signature after 5-ARI therapy
Time Frame: 2 months after starting prostate 5-ARI medication
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Gut microbiota signature after 5-ARI therapy
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2 months after starting prostate 5-ARI medication
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Gut microbiota signature before ADT (LHRH antagonists).
Time Frame: before starting prostate degarelix
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Gut microbiota signature before ADT (LHRH antagonists).
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before starting prostate degarelix
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Gut microbiota signature after ADT (LHRH antagonists).
Time Frame: 2 months after starting prostate degarelix
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Gut microbiota signature after ADT (LHRH antagonists).
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2 months after starting prostate degarelix
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Metabolic characteristics in the gut and systemic circulation after use of prostate medication
Time Frame: before starting prostate idcation (degarelix or finasteride/dutasteride)
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Gut metabolic charachteristics of men receiving prostate medication
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before starting prostate idcation (degarelix or finasteride/dutasteride)
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Metabolic characteristics in the gut and systemic circulation before iuse of prostate medication
Time Frame: 2 months after from starting prostate medication (degarelix or finasteride/d
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Gut metabolic charachteristics of men receiving prostate medication
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2 months after from starting prostate medication (degarelix or finasteride/d
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Collaborators and Investigators
Sponsor
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 (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Prostatic Diseases
- Urogenital Diseases
- Male Urogenital Diseases
- Genital Diseases, Male
- Genital Diseases
- Prostatic Hyperplasia
- Hyperplasia
- Physiological Effects of Drugs
- Adrenergic Antagonists
- Adrenergic Agents
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Urological Agents
- Enzyme Inhibitors
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Hormone Antagonists
- Steroid Synthesis Inhibitors
- Adrenergic alpha-1 Receptor Antagonists
- Adrenergic alpha-Antagonists
- 5-alpha Reductase Inhibitors
- Tamsulosin
- Dutasteride
- Finasteride
Other Study ID Numbers
- 2022-500618-24-00
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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