Supplement Combination on Stress and Sleep

February 8, 2026 updated by: Shawn M. Arent, University of South Carolina

Evaluating the Efficacy of a Supplement Combination for Improving Stress and Sleep: A Randomized Placebo-Controlled Clinical Trial

The purpose of this clinical trial is to assess the effects of a supplement combination on measures of sleep quality and stress in healthy adults.

Study Overview

Study Type

Interventional

Enrollment (Actual)

115

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • South Carolina
      • Columbia, South Carolina, United States, 29208
        • University of South Carolina Sport Science Lab

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Healthy participants aged 18 to 50 years (inclusive) at the time of screening with a body mass index of 18.5 to 29.9 kg/m2.
  • Willing to give voluntary consent, be able to understand and read the questionnaires, carry out all study-related procedures, communicate effectively with the study staff, and agree to allow any study-related evaluations.
  • Participant is physically active: participating in resistance and/or endurance exercise ≥150 min/wk for ≥6 mo.
  • Participant will be asked about dietary supplementation use within the past 6 months.

If participant began taking a supplement within the past month, participant will be asked to discontinue supplement use followed by a 2-week washout prior to participation.In all other cases, supplement use will be asked to be maintained throughout the study.

• The participant has an apple device with iOS 16 or greater software.

Exclusion Criteria:

  • Have a known sensitivity of allergy to any of the investigational products.
  • Participants currently taking any of the investigational products will be excluded.
  • Female participants who are lactating, pregnant, or planning to become pregnant during the study.
  • Diagnosed with any sleep-related or stress-related disorders.
  • Currently taking medication to manage sleep or cortisol levels.
  • Participants with controlled or uncontrolled hypertension including stage 1 hypertension (systolic blood pressure ≥129 mmHg and diastolic blood pressure ≥89 mmHg).
  • Any other condition or abnormality that, in the opinion of the investigator, would compromise the safety of the participant or the quality of the study data.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: AM active, PM active
Ashwagandha, Rhodiola rosea, magnesium threonate, L-theanine, and apigenin.
Active Comparator: AM active, PM placebo
Ashwagandha and Rhodiola rosea
Active Comparator: AM placebo, PM active
Magnesium threonate, L-theanine, and apigenin.
Placebo Comparator: AM placebo, PM placebo
Placebo AM and PM

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cohen's Perceived Stress scale
Time Frame: Baseline, Day 7, Day 14, Day 21, Day 28
To determine changes in perceived stress by way of the Cohen's Perceived Stress scale. The minimum is 0 and max is 40, with higher values meaning more stress.
Baseline, Day 7, Day 14, Day 21, Day 28
Positive mood and emotion
Time Frame: Baseline, Day 7, Day 14, Day 21, Day 28
Assessed by the Positive and Negative Affect Scale. Min values of 0 and max of 50, higher scores indicate more positive moods and emotions.
Baseline, Day 7, Day 14, Day 21, Day 28
Negative mood and emotion
Time Frame: Baseline, Day 7, Day 14, Day 21, Day 28
Assessed by the Positive and Negative Affect Schedule. Min values of 0 and max of 50, higher scores indicate more negative moods and emotions.
Baseline, Day 7, Day 14, Day 21, Day 28
Weekly sleep disturbances.
Time Frame: Baseline, Day 7, Day 14, Day 21, Day 28
Assessed by the Patient Reported Outcome Measures of sleep disturbances. Min values of 8 and max values of 40. Higher scores mean more sleep disturbances.
Baseline, Day 7, Day 14, Day 21, Day 28
Weekly sleep impairment
Time Frame: Baseline, Day 7, Day 14, Day 21, Day 28
Assessed by the Patient Reported Outcome Measures of sleep impairments. Min values of 8 and max values of 40. Higher scores mean more sleep impairments.
Baseline, Day 7, Day 14, Day 21, Day 28
Changes in daily psychological stress
Time Frame: Daily for 4-weeks from baseline to Day 28.
Assessed by the Daily Stress Response Scale. Min 0, max 60 with higher scores indicating higher stress.
Daily for 4-weeks from baseline to Day 28.
Changes in daily physiological stress
Time Frame: Daily for 4-weeks from baseline to Day 28.
Assessed by Daily Stress Response Scale. Min 0, max 60 with higher scores indicating higher stress.
Daily for 4-weeks from baseline to Day 28.
Changes in subjective sleep quality.
Time Frame: Baseline and Day 28.
Assessed by the Pittsburgh Sleep Quality Index questionnaire. Min 0 and max 21, higher scores indicate worse sleep quality.
Baseline and Day 28.
Changes in objective sleep quality.
Time Frame: Daily for 4-weeks from baseline to Day 28.
Assessed by the Absolute Rest device, higher scores are better.
Daily for 4-weeks from baseline to Day 28.
Changes in sleep efficiency.
Time Frame: Daily for 4-weeks from baseline to Day 28.
Assessed by the Absolute Rest device, total time asleep divided by time in bed, expressed as a percentage, higher is better.
Daily for 4-weeks from baseline to Day 28.
Changes in sleep latency
Time Frame: Daily for 4-weeks from baseline to Day 28.
Assessed by the Absolute Rest device, time taken to fall asleep.
Daily for 4-weeks from baseline to Day 28.
Changes in sleep duration
Time Frame: Daily for 4-weeks from baseline to Day 28.
Assessed by the Absolute Rest device, total sleep time.
Daily for 4-weeks from baseline to Day 28.
Changes in sleep apnea
Time Frame: Daily for 4-weeks from baseline to Day 28.
Assessed by the Absolute Rest device, values measures by oxygen saturation.
Daily for 4-weeks from baseline to Day 28.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percent compliance of supplement use
Time Frame: End of Week 2 and Week 3.
To determine the percent of compliance when taking AM and PM pills. Will be measured by the amount of pills taken / pills prescribed multiplied by 100.
End of Week 2 and Week 3.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Collaborators

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 15, 2025

Primary Completion (Actual)

December 1, 2025

Study Completion (Actual)

February 1, 2026

Study Registration Dates

First Submitted

February 27, 2025

First Submitted That Met QC Criteria

March 16, 2025

First Posted (Actual)

March 21, 2025

Study Record Updates

Last Update Posted (Actual)

February 11, 2026

Last Update Submitted That Met QC Criteria

February 8, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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