UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059055
Receipt number R000067544
Scientific Title Effects of daily consumption of dried finely powdered asparagus on the reduction of eye and nasal discomfort for 8 weeks: A randomized, double-blind, placebo-controlled parallel-group comparison study
Date of disclosure of the study information 2025/10/01
Last modified on 2025/09/30 11:53:06

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Basic information

Public title

Effects of daily consumption of dried finely powdered asparagus on the reduction of eye and nasal discomfort for 8 weeks: A randomized, double-blind, placebo-controlled parallel-group comparison study

Acronym

Clinical trial to investigate the reduction effects of nasal and eye discomfort by dried finely powdered asparagus

Scientific Title

Effects of daily consumption of dried finely powdered asparagus on the reduction of eye and nasal discomfort for 8 weeks: A randomized, double-blind, placebo-controlled parallel-group comparison study

Scientific Title:Acronym

Clinical trial to investigate the reduction effects of nasal and eye discomfort by dried finely powdered asparagus

Region

Japan


Condition

Condition

Healthy adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the effects of daily consumption of dried finely powdered asparagus on the reduction of eye and nasal discomfort in healthy subjects who regularly experience nasal and eye discomfort of a certain severity but are not receiving any drug treatment.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change in the total score of nasal and ocular symptoms on the Japanese Standard Quality of Life Questionnaire for Allergic Rhinitis (JRQLQ) No. 1 before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks.

Key secondary outcomes

1. The actual value and the change of total score of nasal and ocular symptoms on the JRQLQ No. 1 before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks (Other than primary endpoint).
2. The actual value and the change of scores for each of nasal and ocular six symptoms on the JRQLQ No. 1 before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks.
3. The actual value and the change of total QOL score, scores for each of the six domains (daily living, outdoor activities, social life, sleep, physical, and mental life) on the JRQLQ No. 1 before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks.
4. The actual value and the change of overall state score on the JRQLQ No. 1 before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks.
5. The actual value and the change of nonspecific and specific IgE levels before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks.
6. The actual value and the change of peripheral blood eosinophils count before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks.
7. The actual value and the change of metabolic syndrome related index (BMI, body weight, glucose, HbA1c, LDL-cholesterol, HDL-cholesterol, and triglyceride) before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks.
8. The actual value and the change of scores for each of the eight domains and two summary scores on SF-8 before and after ingestion of dried finely powdered asparagus or placebo food for 8 weeks.
9. Adverse events


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification


Dynamic allocation

YES

Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Subjects take 10g dried finely powdered asparagus per day for 8 weeks.

Interventions/Control_2

Subjects take 10g placebo food per day for 8 weeks.

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

20 years-old <=

Age-upper limit

64 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Subjects who are judged as healthy by self-reported health questionnaire.
2. Subjects who have regular nasal or ocular discomfort of a certain severity (responded with any of the symptoms in "I. Nasal and Ocular Symptoms" on the JRQLQ No. 1 and with a total score of 5 or higher) and who do not regularly use medicines for symptom relief.
3. Subjects who have no clinical abnormality by screening tests.
4. Subjects who agree to participate in this study with a written informed consent after receiving sufficient explanation relating to this study.

Key exclusion criteria

1.Subjects who have respiratory, gastrointestinal, hepatic/gallbladder/pancreatic, hematologic, renal, endocrine, cardiovascular, dermatological, and/or mental disease, or who have history of those disease.
2.Subjects who have a serious injury or surgical history within 12weeks prior to this study.
3.Pre-or post-menopausal women having obvious changes in physical condition.
4. Subjects who unable to ingest asparagus.
5.Subjects who have history of allergic reaction to foods or drugs which needs its treatment or who have possibility of the reaction.
6. Heavy smokers (more than 21 cigarettes per day), alcohol addicts (more than 80g per day alcohol), subjects who are alcohol or drug dependence, subjects who are suspected of alcohol or drug dependence.
7.Subjects who regularly take drugs, foods for specified health uses, foods with function claims and/or supplements, etc. which would affect this study.
8.Subjects donate either 400ml or 200ml whole blood or blood component within four weeks prior to this study or subjects who plan to donate blood during this study.
9. Subjects who are pregnant or lactating, or subjects who expect to be pregnant during this study.
10.Subjects who have cognitive disorder or who have possibility of the disorder.
11.Subjects who participate and take the study drug in other clinical trials within four weeks prior to this study.
12.Subjects who are judged as unsuitable for this study by the principal investigator or sub investigators.

Target sample size

40


Research contact person

Name of lead principal investigator

1st name Yasuji
Middle name
Last name Arimura

Organization

University of Miyazaki

Division name

Department of Health Care Research, Organization for Promotion of Research and Industry-Academic Regional Collaboration, University of Miyazaki (Kiyotake Branch)

Zip code

889-1692

Address

Kihara5200, Kiyotake, Miyazaki889-1692, Japan

TEL

+81985-85-9577

Email

yasuji_arimura@med.miyazaki-u.ac.jp


Public contact

Name of contact person

1st name Yasuji
Middle name
Last name Arimura

Organization

University of Miyazaki

Division name

Department of Health Care Research, University of Miyazaki (Kiyotake Branch)

Zip code

8891-1692

Address

Kihara5200, Kiyotake, Miyazaki889-1692, Japan

TEL

+81985-85-9577

Homepage URL


Email

yasuji_arimura@med.miyazaki-u.ac.jp


Sponsor or person

Institute

University of Miyazaki

Institute

Department

Personal name



Funding Source

Organization

Saga Prefecture

Organization

Division

Category of Funding Organization

Local Government

Nationality of Funding Organization



Other related organizations

Co-sponsor

Industrial Technology Center of Saga

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee of University of Miyazaki

Address

Kihara 5200, Kiyotake, Miyazaki 889-1692, Japan

Tel

+81985-85-9010

Email

igakubu_kenkyu@med.miyazaki-u.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



Other administrative information

Date of disclosure of the study information

2025 Year 10 Month 01 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


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

Open public recruiting

Date of protocol fixation

2025 Year 08 Month 21 Day

Date of IRB

2025 Year 09 Month 24 Day

Anticipated trial start date

2025 Year 09 Month 30 Day

Last follow-up date

2026 Year 03 Month 26 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 09 Month 11 Day

Last modified on

2025 Year 09 Month 30 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067544