An observational study in Labor Progression and Pregnancy, sponsored by Tepecik Training and Research Hospital. Completed at 1 site in Turkey (Türkiye). Open to female participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-23.
Sponsored by Tepecik Training and Research Hospital · Observational
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Among 391 studies in Sleep Initiation and Maintenance Disorders with a site in Turkey — 97 open to participants now, 110 under way, none of them phase 3. Sleep Initiation and Maintenance Disorders · Turkey.
Among the 391 studies in Sleep Initiation and Maintenance Disorders with a site in Turkey, this one is the 36th largest by enrollment of the 81 observational ones that give a count, is one of 92 that started in 2025, is one of 81 observational ones, and was the 275th registered.
2,726 studies on the registry are indexed under Sleep Initiation and Maintenance Disorders; 728 are open to participants now.
Browse Sleep Initiation and Maintenance Disorders studies →97 of the 391 studies in Sleep Initiation and Maintenance Disorders with a site in Turkey are open now. Recruiting first, the newest first:
Mersin University · Sites in Turkey
Ages 18+
Dokuz Eylul University · Sites in Turkey
Ages 18+
Gazi University · Sites in Turkey
Ages 50–60 · Women only
Medipol University · Sites in Turkey
Ages 18–65 · Healthy volunteers
Konya Beyhekim Training and Research Hospital · Sites in Turkey
Ages 40–55 · Women only
A study can be open while its sites in Turkey have not opened yet or have stopped. Only those recruiting at a site in Turkey →
Of the 388 Sleep Initiation and Maintenance Disorders studies recruiting now, 152 (39%) set no upper age limit and 206 (53%) stop at 75 or younger; 59 take children under 18; 108 take healthy volunteers.
This study: 18 Years to 50 Years · female · healthy volunteers too.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
391 studies; the count open now beside each. This study's row is marked.
First in 2007; this study’s year is marked. 92 started in 2025.
By drug class, each counting the studies that test any of its medicines:
This study's enrollment of 127 is close to the median of 138 across 319 observational studies indexed under Sleep Initiation and Maintenance Disorders.
Median enrollment 60 across the 310 interventional studies, 120 across the 81 observational. Of the 262 that completed or were terminated, 0 (0%) have results posted.
This tab as a report to print or save as PDF → With an account.
2 of 391 have an industry lead sponsor. The 10 most frequent:
Tepecik Training and Research Hospital is the lead sponsor of 33 studies on the registry; 3 are open to participants now.
Tepecik Training and Research Hospital has 1 study filed under Sleep Initiation and Maintenance Disorders — fewer than ten, so there is no comparison to draw.
34 of the studies in Sleep Initiation and Maintenance Disorders with a site in Turkey that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT07503080Filiz KeskinVirtual Reality (VR) Based Relaxation for Nausea and Comfort in Pregnancy | 2026-11 |
| NCT07768020Munzur UniversityEffect of Eye Mask Use on Sleep Quality and Delirium After CABG Surgery | 2026-11-15 |
| NCT07933263Inonu UniversityThe Effect of Transcutaneous Electrical Nerve Stimulation (TENS) on Pain, Mobilization, and Insomnia Severity After Cesarean Section: A Randomized Controlled Trial | 2026-12 |
| NCT07499245Kafkas UniversityThe Effect of Virtual Reality in Older Adults | 2026-12 |
| NCT07832721Volkan GokmenSleep, Mindfulness, and Shift-Level Safety Performance in Perianesthesia Nurses | 2026-12 |
Add all 34 to your calendar (.ics) → With an account.
Among the 391 studies in Sleep Initiation and Maintenance Disorders with a site in Turkey, from their registry updates:
This tab as a report to print or save as PDF → With an account.
This prospective observational study evaluates whether maternal sleep quality, anxiety levels, and nighttime digital behavior are associated with labor progression among term primiparous women. Sleep quality and anxiety are assessed before the onset of labor during routine antenatal visits using validated instruments, including the Pittsburgh Sleep Quality Index (PSQI) and the Beck Anxiety Inventory (BAI). Nighttime digital behavior characteristics, such as screen exposure and smartphone use prior to sleep, are recorded through standardized antenatal interviews.
Labor outcomes, including the duration of the latent, active, and second stages of labor, requirement for oxytocin augmentation, use of analgesia, and mode of delivery, are prospectively documented from hospital admission until birth. By examining behavioral and psychological factors prior to labor onset, the study aims to determine whether poor sleep quality, increased anxiety, or irregular nighttime digital activity are associated with prolonged labor phases or greater need for obstetric interventions.
This prospective observational cohort study investigates the influence of maternal sleep quality, anxiety levels, and nighttime digital device use on labor progression among term primiparous women. Eligible participants were term primiparous women attending routine antenatal follow-up at Izmir Tepecik Training and Research Hospital. All psychosocial assessments were completed prior to the onset of labor. Sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI), and anxiety levels were assessed using the Beck Anxiety Inventory (BAI). Nighttime digital behavior characteristics were documented through structured antenatal interviews and included pre-sleep screen exposure, smartphone use in bed, frequency of nighttime phone checking, and the type of digital content viewed before sleep.
Participants were subsequently followed through spontaneous labor, and labor-related data were collected prospectively. Initial labor characteristics documented at hospital admission included cervical dilation, contraction pattern, and overall clinical presentation. Additional labor outcomes, including the duration of the latent, active, and second stages of labor, use of oxytocin augmentation, requirement for epidural or opioid analgesia, operative vaginal delivery, cesarean delivery, and neonatal outcomes, were recorded systematically according to standardized institutional protocols.
The primary aim of the study is to determine whether poor sleep quality, elevated anxiety levels, or increased nighttime digital device use are associated with prolonged labor or dysfunctional labor patterns. Secondary aims include examining whether interactions between digital behavior variables and psychological factors contribute to variations in maternal labor physiology or to increased obstetric intervention rates.
This study population consists of term primiparous pregnant women who attended routine antenatal follow-up at Izmir Tepecik Training and Research Hospital and subsequently experienced spontaneous onset of labor. All participants were healthy, low-risk obstetric patients with singleton, cephalic presentations and no medical or obstetric complications.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Term primiparous women assessed for sleep quality, anxiety, digital behavior, and followed through spontaneous labor.
Other: No Intervention: Observational Cohort
Observational study with no assigned treatment or intervention.
Duration of Active Labor
Time in minutes from the onset of active labor (defined as cervical dilatation of ≥4 cm with regular contractions) to full cervical dilatation (10 cm). Data will be obtained prospectively from electronic delivery records.
Time frame: From onset of active labor (≥4 cm) until full cervical dilatation (10 cm), typically within 2 to 12 hours.
Duration of Latent Phase of Labor
Time (in minutes) from onset of regular contractions to 4 cm cervical dilation, recorded prospectively from labor charts. Evaluated in relation to sleep quality, anxiety levels, and nighttime digital behavior.
Time frame: From onset of regular contractions until onset of active labor (≥4 cm), typically lasting up to 20 hours.
Duration of Second Stage of Labor
Time in minutes from full cervical dilatation (10 cm) to the delivery of the neonate. Pushing time will be recorded prospectively.
Time frame: From full dilatation (10 cm) until birth, typically lasting up to 3 hours.
Oxytocin Augmentation Requirement
Proportion of participants requiring oxytocin infusion due to inadequate uterine contractions or labor arrest, as documented by obstetric staff.
Time frame: From admission in active labor (≥4 cm) until delivery, typically within 2 to 12 hours.
Mode of Delivery
Rates of spontaneous vaginal delivery, operative vaginal delivery, and cesarean delivery, evaluated according to sleep, anxiety, and digital behavior parameters.
Time frame: Assessed at delivery.
Use of Epidural Analgesia
Proportion of participants receiving epidural anesthesia for labor pain management, and its association with sleep quality, anxiety scores, and digital device use.
Time frame: From onset of active labor (≥4 cm) until delivery, typically within 2 to 12 hours.
APGAR Score at 1 and 5 Minutes
Apgar scores assessed at 1 and 5 minutes after birth.
Time frame: Assessed at 1 and 5 minutes after birth.
Neonatal Intensive Care Unit (NICU) Admission
Number of neonates requiring admission to the neonatal intensive care unit.
Time frame: Assessed within the first 24 hours after birth.
Birth Weight
Neonatal birth weight measured in grams immediately after delivery.
Time frame: Assessed at birth.
Plan to share: No — Individual participant data will not be shared. The dataset contains sensitive clinical information from pregnant women and cannot be made publicly available due to institutional and national data protection regulations. Summary results will be published in peer-reviewed journals, but no individual-level data will be released.
No publications or documents are linked to this record.
Ran from Aug 2025 to primary completion in Nov 2025, 3 months.
Of 127 non-industry observational studies under Sleep Initiation and Maintenance Disorders, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 42. This study's 3 months is below that.
Counting every sponsor, half of 137 studies reached it within 18 months; a quarter within 4 and three quarters within 40.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.
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Sleep Initiation and Maintenance Disorders →
Tepecik Training and Research Hospital