NCT05422599

Brief Summary

This study aims to investigate the effect of a 4-week dietary intervention of 300mg encapsulated aqueous lemon balm extract on measures of sleep quality, mood and well-being, alongside relevant biomarkers of circadian rhythms in healthy adults aged 18-40 years with mild sleep problems (PSQI entry of 5 and above). Three visits to the university alongside completing some home tests involving self-test stool, saliva and mood tests and wearing an wrist-secured actiwatch over 4-weeks whilst recording a daily sleep diary will be monitored to estimate sleep changes. Mood ratings, stool and saliva biomarkers will serve as a proxy to sleep improvement.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
99

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2022

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 5, 2022

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

June 13, 2022

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 16, 2022

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 23, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 23, 2023

Completed
Last Updated

October 13, 2023

Status Verified

October 1, 2023

Enrollment Period

1 year

First QC Date

June 13, 2022

Last Update Submit

October 12, 2023

Conditions

Keywords

Sleep Quality, Sleep Onset Latency, Sleep DurationLemon Balm, Melissa Officinalis, Herbal PsychotropicSleep Diaries, Actiwatches, PSQI, Gut-Brain Axis MicrobiotaWellbeing, Antidepressant, Anxiolytic, Cognitive-EnhancingSalivary Analytes, Melatonin, Cortisol

Outcome Measures

Primary Outcomes (1)

  • Pittsburgh Sleep Quality Index (PSQI)

    A validated measure of sleep assessing qualities and patterns within the last month of sleep habits in adults. Seven components of sleep (quality, latency, duration, efficiency, disturbance, use of sleep medication, daytime dysfunction) will be summed to achieve a global PSQI score ranging from 0 to 21 points, where scores above 5 indicates sleep problems.

    4 weeks

Secondary Outcomes (13)

  • Combined Sleep Diary and Research-Grade Actiwatch Sleep-Wake Patterns

    Continuous over 4 weeks

  • Diurnal Salivary Cortisol and Melatonin Patterns

    4 weeks

  • Gut Microbiota Changes

    4 weeks

  • Insomnia Severity Index (ISI)

    4 weeks

  • Leeds Sleep Evaluation Questionnaire (LSEQ)

    4 weeks

  • +8 more secondary outcomes

Study Arms (2)

Lemon balm

EXPERIMENTAL

300mg Lemon balm and Maltodextrin

Dietary Supplement: Lemon balm

Placebo

PLACEBO COMPARATOR

Placebo

Dietary Supplement: Placebo

Interventions

Lemon balmDIETARY_SUPPLEMENT

300mg Lemon balm and Maltoxdextrin capsules Other Name: Melissa Officinalis L.

Lemon balm
PlaceboDIETARY_SUPPLEMENT

300mg Maltodextrin capsules

Placebo

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy, between18-40 years old
  • Mild Sleep problems (PSQI less than or equal to 5)
  • Willingness to provide stool and saliva samples, wear an actiwatch and complete a nightly sleep diary.

You may not qualify if:

  • Use medications that may affect the outcome
  • Any long-term psychological or physiological health conditions
  • Have any allergic reactions to ingredients in the capsules
  • Have a BMI greater than or equal to 30
  • Are vegetarian
  • Taking any dietary supplements which they are unwilling to stop for the duration of the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

School of Psychology and Clinical Languages, University of Reading

Reading, Berkshire, RG6 6AL, United Kingdom

Location

Related Publications (15)

  • Scholey A, Gibbs A, Neale C, Perry N, Ossoukhova A, Bilog V, Kras M, Scholz C, Sass M, Buchwald-Werner S. Anti-stress effects of lemon balm-containing foods. Nutrients. 2014 Oct 30;6(11):4805-21. doi: 10.3390/nu6114805.

    PMID: 25360512BACKGROUND
  • Araj-Khodaei M, Noorbala AA, Yarani R, Emadi F, Emaratkar E, Faghihzadeh S, Parsian Z, Alijaniha F, Kamalinejad M, Naseri M. A double-blind, randomized pilot study for comparison of Melissa officinalis L. and Lavandula angustifolia Mill. with Fluoxetine for the treatment of depression. BMC Complement Med Ther. 2020 Jul 3;20(1):207. doi: 10.1186/s12906-020-03003-5.

    PMID: 32620104BACKGROUND
  • Kennedy DO, Scholey AB, Tildesley NT, Perry EK, Wesnes KA. Modulation of mood and cognitive performance following acute administration of Melissa officinalis (lemon balm). Pharmacol Biochem Behav. 2002 Jul;72(4):953-64. doi: 10.1016/s0091-3057(02)00777-3.

    PMID: 12062586BACKGROUND
  • Haybar H, Javid AZ, Haghighizadeh MH, Valizadeh E, Mohaghegh SM, Mohammadzadeh A. The effects of Melissa officinalis supplementation on depression, anxiety, stress, and sleep disorder in patients with chronic stable angina. Clin Nutr ESPEN. 2018 Aug;26:47-52. doi: 10.1016/j.clnesp.2018.04.015. Epub 2018 May 19.

    PMID: 29908682BACKGROUND
  • Ghazizadeh J, Hamedeyazdan S, Torbati M, Farajdokht F, Fakhari A, Mahmoudi J, Araj-Khodaei M, Sadigh-Eteghad S. Melissa officinalis L. hydro-alcoholic extract inhibits anxiety and depression through prevention of central oxidative stress and apoptosis. Exp Physiol. 2020 Apr;105(4):707-720. doi: 10.1113/EP088254. Epub 2020 Feb 21.

    PMID: 32003913BACKGROUND
  • Noguchi-Shinohara M, Ono K, Hamaguchi T, Iwasa K, Nagai T, Kobayashi S, Nakamura H, Yamada M. Pharmacokinetics, Safety and Tolerability of Melissa officinalis Extract which Contained Rosmarinic Acid in Healthy Individuals: A Randomized Controlled Trial. PLoS One. 2015 May 15;10(5):e0126422. doi: 10.1371/journal.pone.0126422. eCollection 2015.

    PMID: 25978046BACKGROUND
  • Buysse DJ, Hall ML, Strollo PJ, Kamarck TW, Owens J, Lee L, Reis SE, Matthews KA. Relationships between the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), and clinical/polysomnographic measures in a community sample. J Clin Sleep Med. 2008 Dec 15;4(6):563-71.

    PMID: 19110886BACKGROUND
  • Rivest RW, Schulz P, Lustenberger S, Sizonenko PC. Differences between circadian and ultradian organization of cortisol and melatonin rhythms during activity and rest. J Clin Endocrinol Metab. 1989 Apr;68(4):721-9. doi: 10.1210/jcem-68-4-721.

    PMID: 2921307BACKGROUND
  • Carlson LE, Campbell TS, Garland SN, Grossman P. Associations among salivary cortisol, melatonin, catecholamines, sleep quality and stress in women with breast cancer and healthy controls. J Behav Med. 2007 Feb;30(1):45-58. doi: 10.1007/s10865-006-9082-3. Epub 2007 Jan 24.

    PMID: 17245618BACKGROUND
  • Chang WP, Lin CC. Relationships of salivary cortisol and melatonin rhythms to sleep quality, emotion, and fatigue levels in patients with newly diagnosed lung cancer. Eur J Oncol Nurs. 2017 Aug;29:79-84. doi: 10.1016/j.ejon.2017.05.008. Epub 2017 Jun 2.

    PMID: 28720269BACKGROUND
  • Ibarra A, Feuillere N, Roller M, Lesburgere E, Beracochea D. Effects of chronic administration of Melissa officinalis L. extract on anxiety-like reactivity and on circadian and exploratory activities in mice. Phytomedicine. 2010 May;17(6):397-403. doi: 10.1016/j.phymed.2010.01.012. Epub 2010 Feb 18.

  • Cases J, Ibarra A, Feuillere N, Roller M, Sukkar SG. Pilot trial of Melissa officinalis L. leaf extract in the treatment of volunteers suffering from mild-to-moderate anxiety disorders and sleep disturbances. Med J Nutrition Metab. 2011 Dec;4(3):211-218. doi: 10.1007/s12349-010-0045-4. Epub 2010 Dec 17.

  • Carney CE, Buysse DJ, Ancoli-Israel S, Edinger JD, Krystal AD, Lichstein KL, Morin CM. The consensus sleep diary: standardizing prospective sleep self-monitoring. Sleep. 2012 Feb 1;35(2):287-302. doi: 10.5665/sleep.1642.

  • Orchard F, Gregory AM, Gradisar M, Reynolds S. Self-reported sleep patterns and quality amongst adolescents: cross-sectional and prospective associations with anxiety and depression. J Child Psychol Psychiatry. 2020 Oct;61(10):1126-1137. doi: 10.1111/jcpp.13288. Epub 2020 Jun 17.

  • Buysse DJ, Reynolds CF 3rd, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Res. 1989 May;28(2):193-213. doi: 10.1016/0165-1781(89)90047-4.

Related Links

MeSH Terms

Conditions

ParasomniasSleep Initiation and Maintenance Disorders

Interventions

lemon balm leaf extract

Condition Hierarchy (Ancestors)

Sleep Wake DisordersNervous System DiseasesMental DisordersSleep Disorders, IntrinsicDyssomnias

Study Officials

  • Claire M Williams, Professor

    University of Reading

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Double-blind
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Between and within groups model
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chair of Neuroscience

Study Record Dates

First Submitted

June 13, 2022

First Posted

June 16, 2022

Study Start

May 5, 2022

Primary Completion

May 23, 2023

Study Completion

May 23, 2023

Last Updated

October 13, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will share

Anonymized data may be made available on a platform such as Open Science Framework (www.osf.io) or a data repository linked to academic journals, in accordance with Open Science principles.

Shared Documents
STUDY PROTOCOL, SAP

Locations