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Clinical Research Directory

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67 clinical studies listed.

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Sleep Disorder

Tundra lists 67 Sleep Disorder clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT05986604

NIA_Improving Function and Well-being by Improving Patient Memory: Transdiagnostic Sleep and Circadian Treatment

Mental illness is often chronic, severe, and difficult to treat. Though there has been significant progress towards establishing effective and efficient interventions for psychological health problems, many individuals do not gain lasting benefits from these treatments. The Memory Support Intervention (MSI) was developed utilizing existing findings from the cognitive science literature to improve treatment outcomes. In this study, the investigators aim to conduct an open trial that includes individuals 50 years and older to assess if a novel version of the Memory Support Intervention improves sleep and circadian functioning, reduces functional impairment, and improves patient memory for treatment.

Gender: All

Ages: 50 Years - Any

Updated: 2026-11-02

1 state

Sleep Disorder
Circadian Dysregulation
Memory Impairment
COMPLETED

NCT07898423

Association Between Polycystic Ovary Syndrome and Sleep Quality: A Questionnaire-Based Study

This cross-sectional study enrolled 310 women with PCOS (Rotterdam criteria) at a tertiary referral center between September 2025 and January 2026. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI); a global score \>5 defined poor sleep quality. Logistic regression and Spearman correlation analyses were performed to identify independent predictors.

Gender: FEMALE

Ages: 18 Years - 45 Years

Updated: 2026-10-29

1 state

Sleep Disorder
Polycystic Ovarian Syndrome (PCOS)
NOT YET RECRUITING

NCT04519177

Randomized Trial of a Sleep Disorders Program on Firefighter Safety and Disability ...

The investigators have shown that sleep health education and sleep disorders screening improve health and safety of employees. There is potential to increase the benefits of the sleep health education and screening program if more firefighters are evaluated, diagnosed and referred for treatment. Investigators will evaluate whether firefighters in stations randomized to participate in the Sleep Health and Education Program (SHEP) intervention will have improved health and safety outcomes as compared to firefighters in stations randomized to the control condition.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-10-13

Sleep Disorder
ACTIVE NOT RECRUITING

NCT05971433

Sympathetic Activity in Post-injury Outcomes: Impact on Sleep and caRdiovascular Health InvesTigation

The goal of this observational study is to learn about the long-term health of United States military service members who were injured during combat. The main questions it aims to examine are: * How does the severity of a combat injury impact 1) cardiovascular risk, 2) the sympathetic nervous system and arrhythmias, 3) blood pressure, and 4) sleep disorders? * Are self-reported mental health symptoms related to sympathetic nervous system hyperactivity, sleep disorders, and cardiovascular risk in combat-injured service members? This study will recruit from a sample of participants in another research study called the Wounded Warrior Recovery Project (WWRP) who 1) agreed to be contacted about future research studies and 2) have a record of a combat injury within the Injury Severity Score ranges required for this study. Participants will: * Provide demographic information and a medical history review * Visit a local laboratory for biometrics measurements and to provide blood and urine samples * Wear an ambulatory electrocardiogram monitor for 24 hours per day for seven consecutive days * Wear a home sleep test monitoring device for one night * Wear a blood pressure monitor for 24 consecutive hours on the day after the home sleep test At the end of the study, participants will be asked to mail back the home sleep test and blood pressure monitors. Prepaid package materials will be provided.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-13

1 state

Hypertension
Cardiovascular Diseases
Sleep Disorder
+3
RECRUITING

NCT03990909

Pilot Study of BCAA on Sleep

Individuals will be recruited from the VA Portland Health Care System and the community affiliated with Oregon Health \& Science University. Traumatic brain injury status will be assessed as a contributing factor. Subjects will be randomized to one of 3 groups (BCAA or one of 2 placebo conditions) and instructed to consume study product twice daily for 21 days. Self-report questionnaires, wrist actigraphy, pressure pain testing, and cognitive function will be assessed pre and post the experimental period.

Gender: All

Ages: 18 Years - 89 Years

Updated: 2026-09-17

1 state

Sleep Disorder
Traumatic Brain Injury
RECRUITING

NCT05411029

Study of Disrupted Sleep in Somali Americans

The aims of this study are to determine the types and severity of previously undiagnosed sleep deficiencies in otherwise healthy Somali Americans, apply a research framework to define psychosocial, behavioral, environmental, and biological mechanisms mediating sleep deficiencies in Somali Americans, and examine the relationship between sleep deficiencies and increased blood pressure in Somali Americans.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-09-14

1 state

Hypertension
Sleep Disorder
Healthy
COMPLETED

NCT05746507

Night Respite for Postpartum Mothers With SUD

This single arm pilot feasibility study will evaluate the implementation of overnight infant respite care and parenting skills to mothers with substance use disorders in the early postpartum period residing in residential substance use disorder treatment programs.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-09-11

1 state

Opioid Use Disorder
Maternal Drugs Affecting Fetus
Postpartum Mood Disturbance
+2
NOT YET RECRUITING

NCT07314957

Impact of Lifestyle on Health Maintenance: A Randomized Controlled Trial

This study aims to evaluate the impact of public health interventions on changes in healthy lifestyle habits over time and their subsequent effects on health outcomes. The investigators hypothesize that exposing at-risk populations to structured physical activity programs, education on healthy nutrition, promotion of the Mediterranean diet, and workshops focused on strengthening psychological resilience will lead to improvements in anthropometric, oxidative, metabolic, and psychological parameters. Anthropometric and laboratory measures will be collected at multiple time points throughout the study. The longitudinal follow-up will span 12 months. It is anticipated that sustained adherence to healthy lifestyle behaviors will result in positive lifestyle changes and enhanced health-related quality of life.

Gender: All

Ages: 20 Years - Any

Updated: 2026-09-04

Metabolic Syndrome
Inactivity/Low Levels of Exercise
Unhealthy Diet
+8
COMPLETED

NCT05363787

The Effect of Therapeutic Touch on Sleep and Anxiety

The aim of this study is to determine the effect of the therapeutic touch applied to the sleep patterns of individuals aged 65-85 years with chronic diseases who are treated in the Neurology Intensive Care Unit of Ankara City Hospital, taking into account the circadian cycle.The type of the research is the experimental model with pre-test and post-test control group.Ankara City Hospital has included the research population in the last year. It will consist of 1593 patients between the ages of 65-85 who are hospitalized in the Neurology Intensive Care Unit.Experimental and control groups will be created with simple randomization in randomization.The data were obtained from the socio-demographic characteristics form and the sleep pattern form developed by the researcher. will be collected with

Gender: All

Ages: 65 Years - 85 Years

Updated: 2026-09-04

1 state

Therapeutic Adherence
Nurse-Patient Relations
Sleep Disorder
WITHDRAWN

NCT07058532

Therapeutic Writing for Adults Suffering From Chronic Pain and Comorbid Mental Health Disorders

The goal of this observational study is to understand the effects and experiences of therapeutic writing interventions in adult women with chronic pain and co-occurring mental health conditions. The main questions it aims to answer are: Can therapeutic writing help relieve chronic pain and emotional distress? How does writing support emotional processing, regulation, and meaning-making during rehabilitation? Participants will take part in a two-part writing intervention involving: Guided writing exercises that focus on emotional processing, emotion regulation, and creating meaning. Individual interviews after the writing sessions to explore their experiences. The study uses qualitative analysis methods-phenomenology and logotherapy-to better understand how these writing interventions may support recovery, improve well-being, and offer non-pharmacological tools for managing chronic pain and mental health challenges.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-09-02

1 state

Chronic Pain
Mental Health Disorder
Psychiatric &Amp;Amp;or Mood Disorder
+14
COMPLETED

NCT06505005

Relieving Pain and Improving Sleep: Evaluating Topical Pain Relief and Sleep Patches

This minimal risk, randomized, double-blind, placebo controlled Institutional Review Board (IRB)-approved study with functional measurements, will evaluate pain relief and sleep improvement after use of a drug- free, non-invasive patch (FREEDOM or REM Patch; The Super Patch Company Inc.); using validated scales and functional measurement tools along with crossover and control groups within the same subject group not receiving an 'active' patch.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-08-20

1 state

Pain, Back
Pain, Acute
Sleep Disorder
+4
ACTIVE NOT RECRUITING

NCT06990256

Evaluation of Urolithin A and Fisetin on Improving Sleep and Aging Biomarkers

The goal of this clinical trial is to evaluate the effects of Urolithin A (UA) and Fisetin on improving sleep and aging biomarkers in middle-aged and older adults. The main questions it aims to answer are: Can UA and Fisetin improve sleep quality in middle-aged and older adults? Do these substances have a positive effect on aging biomarkers, such as inflammation, oxidative stress, and aging-related proteins? Researchers will compare four groups: Placebo group (a look-alike substance that contains no drug), 500 mg UA group, 500 mg Fisetin group and 300 mg UA + 200 mg Fisetin group. Participants will: Take the assigned capsules daily after breakfast for 12 weeks. Attend three clinic visits (baseline \[Week 0\], mid-intervention \[Week 4\], and post-intervention \[Week 12\]) including blood tests, sleep quality assessments (PSQI scale, actigraphy, polysomnography), and analysis of aging biomarkers (DNA methylation, inflammatory cytokines, etc.). Keep a sleep diary, complete a dietary survey, assess mental health, and measure frailty indicators. Provide stool and urine samples at baseline and post-intervention for gut microbiome and metabolite analysis. This trial aims to provide scientific evidence for the development of new nutritional intervention strategies to improve the healthy aging.

Gender: All

Ages: 30 Years - 75 Years

Updated: 2026-08-10

1 state

Sleep Disorder
Aging
ENROLLING BY INVITATION

NCT06041581

SHADES Mechanistic Trial

Cardiovascular disease (CVD) is common, deadly, and costly, and adults with insomnia represent a large group of people at elevated risk of developing CVD in the future. This clinical trial will determine if our updated insomnia treatment, called the SHADES intervention, improves CVD factors thought to explain how insomnia promotes CVD and if these improvements are due to positive changes in sleep factors. A total of 200 primary care patients with insomnia and CVD risk factors will be randomized to 6 months of the SHADES intervention (internet, telephonic, and/or face-to-face cognitive-behavioral therapy for insomnia) or the active control condition (sleep education/hygiene, symptom monitoring, and primary care for insomnia). Before and after treatment, participants will complete measurements of the CVD factors (systemic inflammation, autonomic dysfunction, metabolic dysregulation, proinflammatory gene expression) and the sleep factors (insomnia symptoms, sleep onset latency, wake after sleep onset, sleep efficiency). Researchers will test whether the SHADES intervention produces greater improvements in the CVD factors than the active control condition.

Gender: All

Ages: 40 Years - Any

Updated: 2026-08-06

1 state

Insomnia
Insomnia Chronic
Insomnia, Primary
+9
ENROLLING BY INVITATION

NCT04214561

Relationship Between Selected Parameters and Bruxism

Bruxism is a common phenomenon. It is estimated that its prevalence in the adult population is 8-31%. Bruxism occurring during sleep is the activity of the masticatory muscles that appear during sleep, which can be rhythmic or phased and is not a movement disorder or sleep disorder in healthy people. It is currently believed that bruxism should not be considered a disorder. In healthy people, it is treated rather as behavior, which may be a risk factor for pathological clinical implications or a protective factor in the presence of other disease entities. The most common symptoms of bruxism include: pathological wear and tooth sensitivity, periodontal and oral mucosa damage, myalgia in the stomatognathic system, headache and prosthetic restoration damage. However, due to nocturnal occurrence, bruxism symptoms may go unnoticed for a long time, which means that patients are often unaware of this behavior. The etiology of bruxism is multifactorial and not fully understood. It is currently believed that it can be caused by genetic, psychological and exogenous factors. Due to the unclear etiology of bruxism, it is so important to conduct research that allows making a certain diagnosis and finding the causes of this phenomenon

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-07-09

Sleep Bruxism
Sleep Disorder
Psychosomatic Disorder
+4
COMPLETED

NCT04875364

Do Endotypes Predict Response and Sequelae in OSA Patients

This study will investigate why some people have Obstructive Sleep Apnea (OSA) and how the underlying cause may relate to OSA manifestations (including sleepiness and high blood pressure) and response to different therapeutic approaches (ie CPAP, eszopiclone, and supplemental oxygen). Understanding why someone has OSA could affect how best to treat that individual, but may also have an impact on what problems the disease might cause.

Gender: All

Ages: 21 Years - 65 Years

Updated: 2026-06-18

1 state

Obstructive Sleep Apnea
Sleep Apnea
Sleep Apnea, Obstructive
+2
COMPLETED

NCT04007042

Validation of a Short Questionnaire (SSI) for Sleep Disorders in Patients With Alcohol

Sleep disorders are very common in alcohol patients (40-90% according to studies) These sleep disorders may persist after withdrawal and represent a major factor in relapse. In a previous study, the investigators validated a simple sleep questionnaire (the "Short Sleep Index = SSI") from a multicentre series of 602 American patients (Perney et al., Alcohol Alcohol 2012) The SSI is obtained from the Hamilton score (baseline score for anxiety and depression)

Gender: All

Ages: 18 Years - Any

Updated: 2026-06-18

1 state

Alcohol Dependence
Sleep Disorder
COMPLETED

NCT06283017

Evaluation of the Effects of Hypoglossal Nerve Stimulation in Humans With Obstructive Sleep Apnea

This proof-of-concept study is being performed to evaluate whether the hypoglossal nerve can be stimulated using a small series of electrodes placed surgically via a percutaneous approach. Minimally invasive off the shelf medical devices will be used and observation of the characteristic physiological responses to stimulation of the HGN, will be assessed.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-06-08

1 state

Sleep Apnea
Sleep Apnea, Obstructive
Sleep Disorder
+1
COMPLETED

NCT06627127

A Study to Investigate the Feasibility and Respiratory Effects of Stimulating Two Functional Targets (Neural and/or Muscular) for the Treatment of Obstructive Sleep Apnea

This proof-of-concept study is to collect acute and short-term sub-acute (if applicable) changes in respiratory parameters following the percutaneous placement of electrode arrays. Acute placement and data collection will be conducted while performing a Drug Induced Sleep Endoscopy (DISE) where the goal will be to quantify changes in airflow with stimulation. Data will also be collected during a one- or two-night polysomnography (PSG) to investigate airflow and sleep stability responses with and without different levels of stimulation during sleep. Where feasible, OSA severity data will be collected, as measured via the apnea/hypopnea index (AHI) with stimulation versus without stimulation as a secondary objective. Both data collections will be done when stimulating the hypoglossal nerve (HGN) or Genioglossus muscle (GG) and a second functional target (Ansa Cervicalis - AC) or the strap muscles (sternohyoid and sternothyroid) with a set of electrode arrays either in combination or separately.

Gender: All

Ages: 18 Years - Any

Updated: 2026-06-08

4 states

Sleep Apnea
Sleep Apnea, Obstructive
Sleep Apnea Syndromes
+1
COMPLETED

NCT06283030

Evaluation of Hypoglossal Nerve Stimulation in Humans With Obstructive Sleep Apnea

This proof-of-concept study is being performed to evaluate whether the hypoglossal nerve can be stimulated using a small series of electrodes placed surgically via a percutaneous approach. Minimally invasive off the shelf medical devices will be used and observation of the characteristic physiological responses to stimulation of the HGN, will be assessed.

Gender: All

Ages: 21 Years - 80 Years

Updated: 2026-06-08

1 state

Sleep Apnea
Sleep Apnea, Obstructive
Sleep Apnea Syndromes
+1
RECRUITING

NCT06399952

Baker Gordon Syndrome Natural History Study

The goal of this study is to conduct a prospective, longitudinal assessment of the natural clinical progression of children and adults with Synaptotagmin1-Associated Neurodevelopmental Disorder also known as Baker Gordon Syndrome (BAGOS). This will be performed by acquiring baseline measurements and developing effective outcome measures and diagnostic tools for the disorder, to prepare the healthcare system for future clinical trials.

Gender: All

Ages: 0 Years - 99 Years

Updated: 2026-06-03

1 state

Rare Diseases
Autism or Autistic Traits
Development Delay
+4
ACTIVE NOT RECRUITING

NCT01628029

Cognitive Behavioral Therapy and Multimodal Therapy in Treating Sleep Disturbance in Patients With Cancer

This randomized phase II trial studies how well cognitive behavioral therapy and multimodal therapy works in treating sleep disturbance in patients with cancer. Cognitive behavioral therapy may help reduce sleep disturbances, fatigue, and insomnia as well as improve the well-being and quality of life of patients with cancer when given together with methylphenidate hydrochloride, therapeutic melatonin, and light therapy.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-22

1 state

Hematopoietic and Lymphoid Cell Neoplasm
Malignant Solid Neoplasm
Sleep Disorder
TERMINATED

NCT05181254

HEAlth Dialogues for Patients With Mental Illness in Primary Care

In the current project, primary health care patients with mental illness such as anxiety, depression, fatigue or sleep disorders will be followed. The study includes both health conversations with the health curve as a systematic work with lifestyle habits, and the biochemical risk marker copeptin with a focus on improved lifestyle habits and the development of cardiovascular complications. Participants will be followed up at 12 and 24 months with renewed health interview including the health curve and blood sampling. National registries will be used for a, up to 20 year long follow-up regarding cardiovascular complications and mortality.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-01

1 state

Mental Illness
Stress
Fatigue
+6
RECRUITING

NCT03255408

Cerebral Blood Flow and Ventilatory Responses During Sleep in Normoxia and Intermittent Hypoxia

A prospective double blind, placebo-controlled, randomized cross-over trial to evaluate the effect of lowering cerebral blood flow on the ventilatory chemoreflexes (acute hypoxic and hypercapnic ventilatory responses).

Gender: All

Ages: 18 Years - 45 Years

Updated: 2026-05-01

1 state

Obstructive Sleep Apnea of Adult
Hypoxia, Brain
Sleep Apnea
+5
COMPLETED

NCT04598672

Cognitive Behavioral Therapy for Insomnia (CBTi) in Patients With Comorbid Somatic Disease and Insomnia

Insomnia is common with co-morbid somatic disease, e.g. rheumatic disease, cancer, heart and lung disease or gastrointestinal disorders. Pain, breathing difficulties and other symptoms of disease can worsen sleep problems and cause insomnia. In turn, insomnia may aggravate pain, fatigue and reduce quality of life in patients with somatic disorders. This project aims to evaluate a course offered to patients with insomnia and somatic disease at Diakonhjemmet Hospital. The course is based on cognitive behavioral therapy, a documented treatment for insomnia.

Gender: All

Ages: 18 Years - Any

Updated: 2026-04-30

Insomnia
Insomnia Chronic
Sleep Initiation and Maintenance Disorders
+5