UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000052269
Receipt number R000059665
Scientific Title Evaluation of the efficacy of phytosterols intake on changes in urinary symptoms in healthy middle-aged and elderly men: A randomized, placebo-controlled, double-blind, parallel-group study
Date of disclosure of the study information 2023/09/22
Last modified on 2025/05/02 10:14:46

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Basic information

Public title

Evaluation of the efficacy of phytosterols intake on changes in urinary symptoms in healthy middle-aged and elderly men

Acronym

Evaluation of the efficacy of phytosterols intake on changes in urinary symptoms in healthy middle-aged and elderly men

Scientific Title

Evaluation of the efficacy of phytosterols intake on changes in urinary symptoms in healthy middle-aged and elderly men: A randomized, placebo-controlled, double-blind, parallel-group study

Scientific Title:Acronym

Evaluation of the efficacy of phytosterols intake on changes in urinary symptoms in healthy middle-aged and elderly men: A randomized, placebo-controlled, double-blind, parallel-group study

Region

Japan


Condition

Condition

None (Healthy adults)

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigated the effects of phytosterols intake on urinary symptoms in healthy middle-aged and elderly Japanese men.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

IPSS: baseline and 26, 53 weeks after the start of intake

Key secondary outcomes

Efficacy
IPSS(QOL): baseline and 26, 53 weeks after the start of intake
urinary frequency: baseline and 26, 53 weeks after the start of intake
OABSS: baseline and 26, 53 weeks after the start of intake
postvoid residual urine volume: baseline and 26, 53 weeks after the start of intake
maximum urinary flow rate: baseline and 53 weeks after the start of intake

Safety
expression rate of side effects and adverse events: 53 weeks after the start of intake
physical examination, hematological examination, blood biochemistry test, urinalysis: baseline and 26, 53 weeks after the start of intake


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification

YES

Dynamic allocation

NO

Institution consideration


Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Intake period: 53 weeks
Test food: Hard capsules containing 800 mg vegetable sterol formulation (phytosterols content 400 mg/6 capsules)

Twice a day (6 capsules/day)

Interventions/Control_2

Intake period: 53 weeks
Test food: Placebo hard capsules

Twice a day (6 capsules/day)

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

55 years-old <=

Age-upper limit

79 years-old >

Gender

Male

Key inclusion criteria

1. Japanese.
2. Healthy adult males.
3. Participants who are judged as eligible to participate in the study by the principal investigator.
4. PSA-HS is less than 4 ng/mL.
5. OABSS-urgency score is less than 2 or OABSS total score is less than 3.
6. Prostate volume is less than 30 mL.
7. Maximum urinary flow rate is 15 mL/s or more and postvoid residual urine volume is less than 50 mL.
8. Daytime urinary average frequency is 8 or more and less than 15.
9. Participants who have been fully informed of the purpose and content of this study and who have signed a consent form prior to the start of this study.

Key exclusion criteria

1. Undergoing treatment for or having history of malignancy, heart failure, or myocardial infarction.
2. With implanted pacemaker or implantable cardioverter defibrillator.
3. Undergoing treatment for arrhythmia, liver disease, kidney injury, cerebrovascular disease, rheumatism, diabetes, or other chronic disease.
4. Those who scheduled to undergo surgery during or within 2 weeks after the intake period.
5. Undergoing treatment or had been treated within 2 months for benign prostatic hyperplasia, prostatitis, prostate cancer, overactive bladder, underactive bladder, cystitis, interstitial cystitis, bladder cancer, bladder stones, urethritis, urethral stenosis, neuropathy, polyuria, or nycturia.
6. Sitosterolemia.
7. Those who wake up more than twice at bedtime to urinate.
8. Overactive bladder symptom.
9. IPSS total score is 8 or more.
10. Those who constantly consume alcohol exceeding the appropriate amount.
11. Those who regularly consume foods or beverages that is possible to affect urination.
12. Those who regularly consume medicine, Chinese herbal medicines, or supplements that is possible to affect urination.
13. Those who have been taking medicine or supplements to lower cholesterol levels.
14. Participants with allergies to drugs or foods associated with the test food.
15. Those who have participated in other studies within a month prior to the consent, or planned participation during this study.
16. Those who are judged as unsuitable to participate in the study by the principal investigator.

Target sample size

200


Research contact person

Name of lead principal investigator

1st name Hiroyuki
Middle name
Last name SHIMIZU

Organization

Medical corporation Seishukai Hasegawa Hospital

Division name

Director of the Hasegawa Hospital

Zip code

116-0014

Address

5-45-7 Higashinippori, Arakawa-ku, Tokyo, Japan

TEL

03-3807-8976

Email

t-takahama@seishukai.or.jp


Public contact

Name of contact person

1st name Ryuto
Middle name
Last name TAKAHASHI

Organization

Riken Vitamin Co., Ltd

Division name

Healthcare Unit

Zip code

160-0004

Address

1-6-1 Yotsuya, Shinjuku-ku, Tokyo, Japan

TEL

03-5362-1334

Homepage URL


Email

ryu_takahashi@rike-vita.co.jp


Sponsor or person

Institute

Riken Vitamin Co., Ltd

Institute

Department

Personal name



Funding Source

Organization

Riken Vitamin Co., Ltd

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Medical Corporation Seishukai Seishukai Clinic Ethical Review Board

Address

3-18-5 Matsugaya, Taito-ku, Tokyo, Japan

Tel

03-5827-0930

Email

k-sudo@seishukai.or.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

医療法人社団渡辺病院(東京都)


Other administrative information

Date of disclosure of the study information

2023 Year 09 Month 22 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

200

Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2023 Year 09 Month 15 Day

Date of IRB

2023 Year 09 Month 15 Day

Anticipated trial start date

2023 Year 10 Month 14 Day

Last follow-up date

2025 Year 02 Month 16 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Revised the protocol due to changes in inclusion criteria and conditions (approved by the Ethical Review Board on October 27, 2023).


Management information

Registered date

2023 Year 09 Month 21 Day

Last modified on

2025 Year 05 Month 02 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000059665