A Clinical Study to Determine Factors Affecting Absorption and Serum Levels of Lycopene After Supplementation

BPH Clinical Trial

Official title:

A Clinical Study to Determine Factors Affecting Absorption and Serum Levels of Lycopene After Supplementation

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00154843
• Other study ID #: 920704
• Status: Completed
• Phase: Phase 2
• First received: September 8, 2005
• Last updated: January 8, 2008
• Start date: March 2004
• Est. completion date: June 2005

Study information

• Verified date: August 2006
• Source: National Taiwan University Hospital
• Contact: n/a
• Is FDA regulated: No
• Health authority: Taiwan: Department of Health
• Study type: Interventional

Clinical Trial Summary

Primary: To determine factors that affect absorption and serum levels of lycopene after supplementation.

Secondary:

1. To evaluate general safety and tolerability of oral lycopene 15 or 30 mg per day for 12 weeks.

2. To determine lycopene effects on reducing serum levels of prostate specific antigen (PSA) and on relieving lower urinary tract symptoms (LUTS) in relation to prostate hypertrophy as evaluated by the International Prostate Symptom Score (I-PSS).

Description:

This is an uncontrolled intervention study in which eligible male subjects (N=60), after a two-week washout, will be randomized to receive lycopene either 15 or 30 mg per day for 12 weeks. About equal numbers of subjects will be randomized to either 15 or 30 mg of lycopene (about 30 subjects for each arm). The study is expected to be finished in 2 year. The study is expected to be finished in 2 year. Concerning an expected dropout rate of 10%, 66 subjects will be recruited for the study.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 74
• Est. completion date: June 2005
• Est. primary completion date: June 2005
• Accepts healthy volunteers: No
• Gender: Male
• Age group: 40 Years and older

Eligibility

Inclusion Criteria:

• Male subjects aged 40 or older with no pathologically-proven prostate cancer or other cancers. Patients who have had a negative prostate biopsy are still acceptable.

• Subjects with a PSA between 2.5 and 20.0 ng/ml.

• Subjects understand the study procedures and agree to participate in the study by providing a written informed consent and scheduled blood or urine samples.

• Subjects whose liver function and renal function tests are within normal range.

Exclusion Criteria:

• Subjects who may have fluctuated serum PSAs, such as urinary tract infection, prostatitis, acute urinary retention, receiving radiotherapy to the pelvis, etc.

• Subjects who have received a prostate surgery or biopsy within 6 weeks before the initiation of lycopene supplementation.

• Subjects who may or will receive a prostate surgery or biopsy within 12 weeks of the initiation of lycopene supplementation.

• Subjects who have known allergic reaction to carotenoids including lycopene.

• Subjects who are participating or will participate in other clinical trials.

• Subjects who are taking medications that may alter serum PSA levels, such as 5-alpha reductase inhibitor (eg. finasteride), sex steroids or hormonal agents (eg. luteinizing hormone releasing hormone agonists, cyproterone acetate, flutamide, bicalutamide, megesterol acetate, etc.).

• Subjects who may require increased dosage of medications for lower urinary tract symptoms (LUTS) during the 12 weeks of protocol treatment. Subjects who have been put on medications for LUTS before entry and have a stabilized disease are still acceptable. These medications include, but note limited to, selective or non-selective alpha-blockers and anti-cholinergics.

• Subjects who have or have had clinical gastrointestinal malabsorption regardless of the etiology.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Related Conditions & MeSH terms

• BPH

Intervention

Drug:
• Lycopene
A: Lycopene15 mg/day ; B: Lycopene30 mg/day

Locations

Country	Name	City	State
Taiwan	National Taiwan University Hospital	Taipei

Sponsors (1)

Lead Sponsor	Collaborator
National Taiwan University Hospital

Country where clinical trial is conducted

Taiwan, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	serum lycopene levels		two years	No
Secondary	I-PSS, peak flow rate		two years	Yes