Ashwagandha for Nighttime Waking
Effects of Daily Intake of Ashwagandha (Withania Somnifera) Root Extract Sustained Release (SR) Capsules 150mg on Disturbed Sleep: a Phase II, Randomized Placebo-controlled Trial With Wearable Device
1 other identifier
interventional
54
1 country
1
Brief Summary
The purpose of this research is to evaluate the effect of a sustained-release, lower-dosage (150mg) Ashwagandha supplement to reduce disturbed sleep. 54 participants, after randomization, will take either an Ashwagandha supplement or a placebo daily for 28 days (week 4) and wear an Oura ring. The Oura ring will measure waking after sleep onset (WASO). Questionnaires to evaluate quality of life and sleep will be administered at baseline and week 4.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Oct 2025
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 25, 2025
CompletedFirst Posted
Study publicly available on registry
September 3, 2025
CompletedStudy Start
First participant enrolled
October 20, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
May 11, 2026
ExpectedMarch 16, 2026
March 1, 2026
6 months
August 25, 2025
March 12, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Sleep Disturbance: Change from Baseline in the Mean Waking After Sleep Onset (WASO) to Week 4
WASO is measured nightly in hours and minutes via an Oura Ring. The Oura Ring must be worn at least 4 nights per week on average from Baseline (7 days) + 28 days. Primary analysis: Change in WASO will be measured as the average of the final 4 days of Week 4 minus the average WASO of the Baseline Week. Secondary analysis: Change in WASO will be measured as the average of Week 4 minus the average WASO of the Baseline Week.
From Baseline to Week 4 (28 days)
Secondary Outcomes (2)
Change from Baseline in the Mean Patient-Reported Outcomes Measurement Information System (PROMIS-29) Sleep Disturbance Subdomain to Week 4
From Baseline to End of Week 4 (28 days)
Change from Baseline in Mean PROMIS-29 Sleep Quality Question to Week 4
From Baseline to End of Week 4 (28 days)
Other Outcomes (18)
Change from Baseline in the Mean PROMIS-29 Fatigue Subdomain to Week 4
Baseline to End of Week 4 (28 days)
Change from Baseline in the Mean PROMIS-29 Anxiety Subdomain to Week 4
From baseline to End of Week 4 (28 days)
Change from Baseline in the Mean PROMIS-29 Depression Subdomain to Week 4
From Baseline to Week 4 (28 days)
- +15 more other outcomes
Study Arms (2)
Sustained-Release Ashwagandha Supplement
EXPERIMENTALSustained-release, lower-dosage (150mg) Ashwagandha supplement; 1 capsule 1 time per day.
Placebo
PLACEBO COMPARATORPlacebo Supplement: Consists of microcrystalline cellulose and is matched for shape, color, and smell. 1 capsule, 1 time per day.
Interventions
This placebo does not contain any of the interventional dietary supplement. The placebo consists of microcrystalline cellulose and is matched for shape, color, and smell. 1 capsule, 1 time per day.
Sustained-Release, lower-dosage (150mg) Ashwagandha Supplement, 1 capsule 1 time per day.
Eligibility Criteria
You may qualify if:
- Age: Male and non-pregnant female adult participants must be between 18 and 65 years of age.
- Female subjects of childbearing potential must be using a medically acceptable form of birth control, as there are unknown pregnancy risks when starting any new supplement.
- Female subjects of non-childbearing potential must be amenorrheic for at least 1 year or have had a hysterectomy and/or bilateral oophorectomy.
- Sleep Quality: Otherwise, healthy individuals with a raw score of 25-29 (T-score of approximately 55.0-59.9) on the Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep Disturbance Short Form 8a, indicating at least mild sleep disturbance.
- Sleep Hygiene: Willing to follow basic sleep hygiene protocols (dark/dim lights, quiet location/white noise, regular sleep routine, abstaining from digital activity 1 hour prior to sleep) during the Baseline week and the 28-day trial.
- Wearable Device: Participants must be willing to comply with study procedures, including wearing the Oura Ring nightly (at least 4 nights per week) and completing questionnaires.
- Informed Consent: Participants must be able to provide informed consent and comply with the study procedure.
- Willing to wear the Oura Ring for a total of 35 days (7-day base + 28 days of trial)
- Willing to maintain current dietary patterns, activity level, and stable body weight for the duration of the study, and refrain from any drastic lifestyle changes.
- Willing to refrain from using sleep-promoting supplements or medications during the study, such as melatonin, antihistamines, valerian root, chamomile, magnesium, and cannabinoids (CBD).
- Results of screening procedures/ lab investigations are within normal range or considered not clinically significant by the Principal Investigator.
- Willing to undergo study procedures including safety lab tests and urine pregnancy test (UPT only for women of childbearing potential).
You may not qualify if:
- Age: Participants younger than 18 and older than 65 years of age.
- Use of Medications: Current use of sleep-promoting or sleep-disrupting medications or supplements.
- Diagnosed Sleep Disorder: Sleep apnea, narcolepsy, or other for which they are taking medication.
- Other Conditions: Significant medical or psychiatric conditions that could interfere with sleep assessment.
- Irregular Sleep Schedules: Shift workers or those with irregular sleep schedules, as well as anyone with a newborn or having a lifestyle likely to interfere with sleep patterns (eg: jet lag).
- Pregnancy or Lactation: Individuals who are pregnant, lactating, or planning a pregnancy within the next 30 days.
- Post-menopausal female subjects on any Hormone Replacement Therapy
- Allergies: Known allergy or hypersensitivity to any component of the study product.
- Alcohol Intake: History or presence of excessive alcohol use (\> 8 drinks per week in women and \> 15 drinks per week in men within the past month) or use of recreational drugs (such as cocaine, methamphetamine, marijuana, etc.) or addiction to nicotine (current smokers/tobacco users)
- Chronic Illness: Participants with chronic conditions such as liver disease, kidney disease, or severe cardiovascular disease or cancer, colorectal disease and/or other rare disorders that at the discretion of the Principal Investigator (PI) or Clinical Investigator (CI) may impact their safety or confound trial results
- Other Medications: Subjects taking insulin, psychotropics, anxiolytics, sedatives, hypnotics or herbal supplements / Over the counter (OTC) product / multivitamins etc. for sleep or anxiety or any other psychological condition, or any other prescription product which has a known side effect of causing somnolence or sleep problems, within one month prior to the screening visit.
- High-risk medications: The use of any high-risk medications with narrow therapeutic indices metabolized by cytochrome (CYP450) enzymes: Warfarin (CYP2C9), Tacrolimus/Cyclosporine (CYP3A4), Efavirenz (CYP2B6), and Codeine (CYP2D6).
- Drugs requiring activation for efficacy: Clopidogrel (CYP2C19), Codeine (CYP2D6), and Tamoxifen (CYP2D6).
- Participation in Other Trials: Currently participating in another interventional research study or participated in another interventional research study within 90 days of screening
- Any condition that in opinion of the Investigator, does not justify the Subjects' participation in the study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National University of Natural Medicine
Portland, Oregon, 97201, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Joshua Goldenberg, ND
National University of Natural Medicine
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
August 25, 2025
First Posted
September 3, 2025
Study Start
October 20, 2025
Primary Completion
May 1, 2026
Study Completion (Estimated)
May 11, 2026
Last Updated
March 16, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share