SleepNCT05372900
Nutritional Intervention to Improve Sleep Quality and Improve Next-day Mood and Cognitive Benefits
A study testing Test Product in people with Sleep, run by Société des Produits Nestlé (SPN) at 1 site in Singapore.
Trial summary
The study aim to test the effect of a meal complement to be taken in combination with an evening meal with a glycemic load of 55, to improve sleep quality. Read more about this study
- Who is it for?
- Ages 25 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Sleep
- What is being tested?
- Test Product
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 43 participants
- Where
- 1 siteSingapore
- Study dates
- 23 Mar 2022to 12 Dec 2022
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 25 to 50 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Willing and able provide written informed consent (in English)
- Aged 25-50
- BMI range from 18.5 to 24.9 kg/m2
- Subjective sleep complaints (PSQI > 5)
Who cannot join
- Diagnosed food allergy or other intolerance to the investigational products, control products and standardized meals
- Significant past medical and psychiatric history and ongoing chronic conditions for example cardiovascular disease, respiratory disease, metabolic disorder, endocrine disorder (e.g. diabetes mellitus, history of hypoglycemia), and neurological and psychiatric conditions, and conditions that the investigator deem inappropriate to enter the clinical trials
- Significant medication history including use of corticosteroid in oral or systemic format and antidepressants (e.g. Selective Serotonin Reuptake Inhibitors, Monoamine Oxidase Inhibitors)
- Pregnant or intending to conceive during the course of clinical trial and up to one month after trial conclusion, or not able to comply with a highly effective form of birth control or lactating during the clinical trial. Highly effective contraception includes hormonal methods, such as the contraceptive pill or implant, or an intrauterine device (IUD), or barrier methods such as diaphragm plus spermicide or condom plus spermicide. Pregnancy status will be assessed using urinary dipsticks at the beginning and end of the study period (V0 and V9).
- Parents of children less than 12 months of age, which is a known factor of sleep disturbances.
- Peri- and post-menopausal women
Show all 16Show fewer
- Known or diagnosed sleep disorders
- Special diets, including for instance halal food preference, vegetarian, high protein or weight loss program, and diets with either too low (< 35% daily energy from CHO; e.g., ketogenic diet, Atkins diet, zero-carb diet, low-carb paleo/Mediterranean diet, carb cycling diet) or too high carbohydrate (>70% daily energy from CHO) content .
- Chronic exercisers, defined as subjects exercising > 1 h/day for at least 5 days/week
- Caffeine consumption over the recommended daily limit (above 400 mg; equivalent to approximately 4-5 cups of coffee)
- Substance abuse including over the limit alcohol consumption (2 standard drinks/day for males, 1 standard drink/day for female)
- Cigarette and Tobacco Smokers
- Intake of dietary supplements that may affect sleep conditions (e.g. melatonin, theanine, tryptophan, GABA, magnesium, zinc)
- Subjects not willing and/or not able to comply with scheduled visits and the requirements of the study protocol.
- Participating in other clinical trials or had been participating in other clinical trial in the preceding 1 month.
- Subjects belonging to a household where at least one other person is taking part in the trial.
Trial locations and contacts
1 site in 1 country.
Singapore1 site
Centre for Sleep and Cognition, NUS Yong Loo Lin School of Medicine
Singapore, 117549
About this study
The study aim to test the effect of a meal complement to be taken in combination with an evening meal with a glycemic load of 55, to improve sleep quality.
Read the detailed description
Considering emerging evidence on the role of the macro and micro-nutrient composition of evening meals, the intervention used in this study will be designed to provide the necessary nutrients to promote sleep quality. The IP will be a low caloric nutritional solution, combining:
- Ingredients lowering glycemic response to evening meals to promote sleep quality
- a protein source rich in bioavailable tryptophan to promote sleep quality
- supporting ingredients contributing to sleep initiation
- Conditions
- Sleep
- Being tested
- Test Product, Control Product
- Keywords
- Subjective sleep complaints
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Test ProductOther
Whey Protein Isolate with Mulberry leaf extract
Control ProductOther
Wheat Protein Hydrolysate
| Study group | Role | What they receive |
|---|---|---|
| Test - Control product | Experimental | Subject will start with consuming the test product daily for total 14 days (during intervention 1 period). After the 4 - 6 weeks wash out, subject will then consume the control product daily for total 14 days (during intervention period 2). Receives: Other: Test Product; Other: Control Product |
| Control - Test product | Experimental | Subject will start with consuming the control product daily for total 14 days (during intervention 1 period). After the 4 - 6 weeks wash out, subject will then consume the test product daily for total 14 days (during intervention period 2). Receives: Other: Test Product; Other: Control Product |
What is being measured
The primary outcome is the main question the study is designed to answer.
Changes in sleep efficiency (actigraphy)
Calculated as '(total time asleep / time in bed) X 100; sleep efficiency above 85% is considered good.
Measured: Day 1 (V1) to Day 15 (V2), Day 22 (V3) to Day 37, Day 38 (V5) to Day 45, Day 59 (V6) to Day 65, Day 66 (V7) to Day 79, Day 80 (V8) to Day 87 (V9)
Change in sleep latency (actigraphy)
Measured as the amount of time it takes subjects to fall asleep after going to bed (in minutes)
Measured: Day 1 (V1) to Day 15 (V2), Day 22 (V3) to Day 37, Day 38 (V5) to Day 45, Day 59 (V6) to Day 65, Day 66 (V7) to Day 79, Day 80 (V8) to Day 87 (V9)
Secondary outcomes (12)
Changes in self-reported sleep quality via Actigraphy
Changes in WASO \& total sleep duration
Measured: Day 1 (V1) to Day 15 (V2) , Day 22 (V3) to Day 37, Day 38 (V5) to Day 45, Day 59 (V6) to Day 65, Day 66 (V7) to Day 79, Day 80 (V8) to Day 87 (V9)
Changes in self-reported sleep quality via KSD
Changes in self-reported sleep quality measured through questionnaire Karolinska Sleep Diary (KSD)
Measured: Day 1 (V1), Day 15 (V2), Day 22 (V3), Day 23, Day 24 (V4) to Day 37, Day 45 and 65, Day 66 (V7) to Day 79, Day 87 (V9)
Changes in self-reported sleep quality via ESS
Changes in self-reported sleep quality measured through questionnaire Epworth Sleepiness Scale (ESS)
Measured: Day 1 (V1) & Day 15 (V2), Day 23, 31, 37, 45, 65, 73, 79, 87)
Glycemia
Glycemia measured by continuous glucose monitoring:
- Glucose response of the evening standard meal with the test product or the control product
- Glucose excursion during the night (from time to bed to wakening)
- Subsequent breakfast
Measured: Day 1 (V1) to Day 14, Day 24 (V4) to Day 37, Day 66 (V7) 7 to Day 79
Mood states, alertness, and sleepiness via BMIS
Questionnaire Brief Mood Introspection Scale (BMIS)
Measured: Day 22 (V3), Day 23 to Day 37, Day 65, Day 66 (V7) to Day 79
Mood states, alertness, and sleepiness via KSS
Questionnaire Karolinska Sleepiness Scale (KSS)
Measured: Day 22 (V3), Day 23 to Day 37, Day 65, Day 66 (V7) to Day 79
Mood states, alertness, and sleepiness via POMS-SF 2
Questionnaire Profile of Mood States - Short Form 2 (POMS-SF 2)
Measured: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Cognition tasks via Immediate & delayed free recall
Immediate \& delayed free recall
Measured: Day 22 (V3), Day 23, 37, 65, 79
Cognition task PVT
Psychomotor Vigilance Task (PVT)
Measured: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Cognition test N-back task
N-back task
Measured: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Cognition test Go/No-Go task
Go/No-Go task
Measured: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Cognition task NASA-TLX
NASA task load index (NASA-TLX)
Measured: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 May 2022
- Study start23 Mar 2022
- Primary completion5 Dec 2022
- Study completion12 Dec 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for SleepStudies of the same condition, open and under way.
- More trials run by Société des Produits Nestlé (SPN)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Model description
- This is a double-blind, controlled, randomized, 2-arm, cross-over, group sequential design clinical trial. Subjects will receive the two different interventions in a randomized order.
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 43 participants (actual)
Sponsor and investigators
- Lead sponsor
- Société des Produits Nestlé (SPN)
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Michael Chee, Principal investigator, National University of Singapore
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05372900
- Sponsor's protocol ID
- 21.03.DAI
- Status last verified
- Jul 2023
- First submitted
- 2 Dec 2021
- Last updated
- 13 Jul 2023
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Soon CS, Thota R, Owen L, Tian L, Martin FP, Mantantzis K, Cherta-Murillo A, Campos VC, Chkroun C, Lavalle L, Hartweg M, St-Onge MP, Chee MWL, Darimont C. Mulberry leaf extract combined with tryptophan improves sleep and post wake mood in adults with sleep complaints - A randomized cross-over study. Eur J Nutr. 2025 Mar 12;64(3):124. doi: 10.1007/s00394-025-03643-8.
PubMed 40072601
Study at a glance
From the registry record, last updated by the sponsor on 13 Jul 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Nutritional Intervention to Improve Sleep Quality and Improve Next-day Mood and Cognitive Benefits
- ClinicalTrials.gov ID
- NCT05372900
- Acronym / sponsor ID
- 21.03.DAI
- Conditions
- Sleep
- Keywords
- Subjective sleep complaints
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 43 participants (actual)
- Lead sponsor
- Société des Produits Nestlé (SPN)Industry (pharma, biotech, devices)
- Study start
- 23 Mar 2022 (actual)
- Primary completion
- 5 Dec 2022 (actual)
- Study completion
- 12 Dec 2022 (actual)
- First posted
- 13 May 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The study aim to test the effect of a meal complement to be taken in combination with an evening meal with a glycemic load of 55, to improve sleep quality.
Detailed description
Considering emerging evidence on the role of the macro and micro-nutrient composition of evening meals, the intervention used in this study will be designed to provide the necessary nutrients to promote sleep quality. The IP will be a low caloric nutritional solution, combining:
- Ingredients lowering glycemic response to evening meals to promote sleep quality
- a protein source rich in bioavailable tryptophan to promote sleep quality
- supporting ingredients contributing to sleep initiation
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
- Model description
- This is a double-blind, controlled, randomized, 2-arm, cross-over, group sequential design clinical trial. Subjects will receive the two different interventions in a randomized order.
| Arm | Type | Receives |
|---|---|---|
| Test - Control product | Experimental | Other: Test Product, Other: Control ProductSubject will start with consuming the test product daily for total 14 days (during intervention 1 period). After the 4 - 6 weeks wash out, subject will then consume the control product daily for total 14 days (during intervention period 2). |
| Control - Test product | Experimental | Other: Test Product, Other: Control ProductSubject will start with consuming the control product daily for total 14 days (during intervention 1 period). After the 4 - 6 weeks wash out, subject will then consume the test product daily for total 14 days (during intervention period 2). |
Who may qualify
- Ages
- 25 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Willing and able provide written informed consent (in English)
- Aged 25-50
- BMI range from 18.5 to 24.9 kg/m2
- Subjective sleep complaints (PSQI > 5)
Key exclusion criteria (16 listed)
- Diagnosed food allergy or other intolerance to the investigational products, control products and standardized meals
- Significant past medical and psychiatric history and ongoing chronic conditions for example cardiovascular disease, respiratory disease, metabolic disorder, endocrine disorder (e.g. diabetes mellitus, history of hypoglycemia), and neurological and psychiatric conditions, and conditions that the investigator deem inappropriate to enter the clinical trials
- Significant medication history including use of corticosteroid in oral or systemic format and antidepressants (e.g. Selective Serotonin Reuptake Inhibitors, Monoamine Oxidase Inhibitors)
- Pregnant or intending to conceive during the course of clinical trial and up to one month after trial conclusion, or not able to comply with a highly effective form of birth control or lactating during the clinical trial. Highly effective contraception includes hormonal methods, such as the contraceptive pill or implant, or an intrauterine device (IUD), or barrier methods such as diaphragm plus spermicide or condom plus spermicide. Pregnancy status will be assessed using urinary dipsticks at the beginning and end of the study period (V0 and V9).
- Parents of children less than 12 months of age, which is a known factor of sleep disturbances.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Test ProductWhey Protein Isolate with Mulberry leaf extract | Other | Control - Test product, Test - Control product |
| Control ProductWheat Protein Hydrolysate | Other | Control - Test product, Test - Control product |
Primary outcome
Changes in sleep efficiency (actigraphy)
Time frame: Day 1 (V1) to Day 15 (V2), Day 22 (V3) to Day 37, Day 38 (V5) to Day 45, Day 59 (V6) to Day 65, Day 66 (V7) to Day 79, Day 80 (V8) to Day 87 (V9)
Calculated as '(total time asleep / time in bed) X 100; sleep efficiency above 85% is considered good.
Change in sleep latency (actigraphy)
Time frame: Day 1 (V1) to Day 15 (V2), Day 22 (V3) to Day 37, Day 38 (V5) to Day 45, Day 59 (V6) to Day 65, Day 66 (V7) to Day 79, Day 80 (V8) to Day 87 (V9)
Measured as the amount of time it takes subjects to fall asleep after going to bed (in minutes)
12 secondary outcomes
Changes in self-reported sleep quality via Actigraphy
Time frame: Day 1 (V1) to Day 15 (V2) , Day 22 (V3) to Day 37, Day 38 (V5) to Day 45, Day 59 (V6) to Day 65, Day 66 (V7) to Day 79, Day 80 (V8) to Day 87 (V9)
Changes in self-reported sleep quality via KSD
Time frame: Day 1 (V1), Day 15 (V2), Day 22 (V3), Day 23, Day 24 (V4) to Day 37, Day 45 and 65, Day 66 (V7) to Day 79, Day 87 (V9)
Changes in self-reported sleep quality via ESS
Time frame: Day 1 (V1) & Day 15 (V2), Day 23, 31, 37, 45, 65, 73, 79, 87)
Glycemia
Time frame: Day 1 (V1) to Day 14, Day 24 (V4) to Day 37, Day 66 (V7) 7 to Day 79
Mood states, alertness, and sleepiness via BMIS
Time frame: Day 22 (V3), Day 23 to Day 37, Day 65, Day 66 (V7) to Day 79
Mood states, alertness, and sleepiness via KSS
Time frame: Day 22 (V3), Day 23 to Day 37, Day 65, Day 66 (V7) to Day 79
Mood states, alertness, and sleepiness via POMS-SF 2
Time frame: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Cognition tasks via Immediate & delayed free recall
Time frame: Day 22 (V3), Day 23, 37, 65, 79
Cognition task PVT
Time frame: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Cognition test N-back task
Time frame: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Cognition test Go/No-Go task
Time frame: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Cognition task NASA-TLX
Time frame: Day 22 (V3), Day 23, 31, 37, 65, 73, 79
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Jul 2023.
- Derived from this study: PubMed 40072601Soon CS, Thota R, Owen L, Tian L, Martin FP, Mantantzis K, Cherta-Murillo A, Campos VC, Chkroun C, Lavalle L, Hartweg M, St-Onge MP, Chee MWL, Darimont C. Mulberry leaf extract combined with tryptophan improves sleep and post wake mood in adults with sleep complaints - A randomized cross-over study. Eur J Nutr. 2025 Mar 12;64(3):124. doi: 10.1007/s00394-025-03643-8.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Michael Chee principal investigator
National University of Singapore
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Test Product in people with Sleep, run by Société des Produits Nestlé (SPN) at 1 site in Singapore.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Singapore. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Changes in sleep efficiency (actigraphy) (time frame: Day 1 (V1) to Day 15 (V2), Day 22 (V3) to Day 37, Day 38 (V5) to Day 45, Day 59 (V6) to Day 65, Day 66 (V7) to Day 79, Day 80 (V8) to Day 87 (V9)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05372900, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jul 2023.