UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062793
Receipt number R000071878
Scientific Title Effects of Cumin Intake on Body Composition and Lipid Metabolism: An Exploratory Randomized Controlled Trial Focusing on Sex Differences
Date of disclosure of the study information 2026/09/10
Last modified on 2026/09/09 19:30:46

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Basic information

Public title

Effects of Cumin Intake on Body Composition and Lipid Metabolism: An Exploratory Randomized Controlled Trial Focusing on Sex Differences

Acronym

Cumin Sex-Difference RCT

Scientific Title

Effects of Cumin Intake on Body Composition and Lipid Metabolism: An Exploratory Randomized Controlled Trial Focusing on Sex Differences

Scientific Title:Acronym

Cumin Sex-Difference RCT

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 cumin intake on body composition, lipid metabolism, and glycation markers in healthy adults compared with placebo, and to explore potential sex differences in these effects.

Basic objectives2

Others

Basic objectives -Others

To compare the effect of 12-week cumin supplementation with placebo on fat mass as the primary outcome and to evaluate its effects on body composition, lipid metabolism, inflammatory markers, and glycation markers. In addition, potential sex differences in the intervention effects will be explored.

Trial characteristics_1

Exploratory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable


Assessment

Primary outcomes

Fat mass at the end of the 12-week intervention

Key secondary outcomes

Body fat percentage, fat-free mass, skeletal muscle mass, skeletal muscle mass index (SMI), fat mass index (FMI), ECW/TBW ratio, phase angle, handgrip strength, total cholesterol, LDL cholesterol, HDL cholesterol, triglycerides, non-HDL cholesterol, HbA1c, glycated albumin, pentosidine, high-sensitivity C-reactive protein (hs-CRP), high-sensitivity interleukin-6 (hs-IL-6), and skin advanced glycation end products (AGEs). Sex differences in the intervention effects (intervention-by-sex interaction) will also be explored.


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

Institution is considered as adjustment factor in dynamic allocation.

Blocking

YES

Concealment

No need to know


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Participants will take one soft capsule containing essential oil extracted from cumin (equivalent to 3.0-4.0 g of cumin powder) once daily for 12 weeks. No specific timing of intake will be required, and participants will be instructed to maintain their usual dietary and exercise habits throughout the study.

Interventions/Control_2

Participants will take one placebo soft capsule containing no cumin once daily for 12 weeks. No specific timing of intake will be required, and participants will be instructed to maintain their usual dietary and exercise habits throughout the study.

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

30 years-old <=

Age-upper limit

65 years-old >

Gender

Male and Female

Key inclusion criteria

1. Healthy men and women aged 30 years or older and younger than 65 years.
2. Individuals with a body mass index (BMI) of 22 kg/m2 or higher and 30 kg/m2 or lower.
3. Individuals who have received sufficient information about the study and provided voluntary informed consent to participate.

Key exclusion criteria

1. Individuals younger than 30 years or aged 65 years or older.
2. Individuals with a BMI lower than 22 kg/m2 or higher than 30 kg/m2.
3. Individuals who have newly initiated a diet, exercise program, or supplement use for weight loss within 3 months before the start of the study.
4. Individuals currently using medications that may affect body weight, fat mass, glucose metabolism, or lipid metabolism, including antidiabetic drugs, anti-obesity drugs, corticosteroids, and GLP-1 receptor agonists.
5. Individuals with serious underlying diseases, including severe liver, kidney, or heart disease, malignancy, active infection, or autoimmune disease, considered inappropriate for participation by the investigator.
6. Women who are pregnant, breastfeeding, or may be pregnant.
7. Individuals unable to avoid daily consumption of foods containing curry powder during the study period.
8. Individuals with a history of allergy to cumin or any component of the study product, including gelatin.
9. Individuals considered unable to continue consuming the study product because of gastrointestinal symptoms or gastrointestinal diseases.
10. Individuals for whom InBody measurements cannot be appropriately performed, such as those with a cardiac pacemaker.
11. Individuals currently participating or planning to participate in another interventional study during the study period.
12. Individuals considered inappropriate for participation by the principal investigator or other investigators.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Shin
Middle name
Last name Suzuki

Organization

The Jikei University School of Medicine

Division name

Department of Rehabilitation Medicine

Zip code

105-8461

Address

3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo

TEL

03-3433-1111

Email

ss1135071@jikei.ac.jp


Public contact

Name of contact person

1st name Shin
Middle name
Last name Suzuki

Organization

The Jikei University School of Medicine

Division name

Department of Rehabilitation Medicine

Zip code

105-8461

Address

3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo

TEL

03-3433-1111

Homepage URL


Email

ss1135071@jikei.z


Sponsor or person

Institute

The Jikei University School of Medicine

Institute

Department

Personal name

Shin Suzuki


Funding Source

Organization

S&B Foods Inc.

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

Koyama Rehabilitation Hospital

Address

405-25 Obuchi, Fuji, Shizuoka

Tel

0545-36-2000

Email

koyama-hp@momoha.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

湖山リハビリテーション病院(静岡県)


Other administrative information

Date of disclosure of the study information

2026 Year 09 Month 10 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

Enrolling by invitation

Date of protocol fixation

2026 Year 08 Month 03 Day

Date of IRB

2026 Year 08 Month 03 Day

Anticipated trial start date

2026 Year 08 Month 10 Day

Last follow-up date

2027 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 09 Month 02 Day

Last modified on

2026 Year 09 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071878