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NCT04521972
Impact of Room Light on Uterine Contractions and Labor Progression in Pregnancy
NA trial testing Room light/light bulb in Pregnancy Related in 100 participants. Currently enrolling.
1 September 2027
Quick facts
| Lead sponsor | Michigan State University |
|---|---|
| Phase | NA |
| Status | Recruiting now |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | single |
| Primary purpose | basic science |
| Enrollment | 100 |
| Start date | 1 September 2025 |
| Primary completion | 1 September 2027 |
| Estimated completion | 1 September 2029 |
| Sites | 1 location across United States |
Drugs / interventions tested
- Room light/light bulb
Conditions studied
- Pregnancy Related — all drugs for Pregnancy Related →
- Labor; Poor — all drugs for Labor; Poor →
- Uterine Contractions Weak — all drugs for Uterine Contractions Weak →
Sponsor
Michigan State University
Who can join
Adults 18 to 42, female only, with Pregnancy Related or Labor; Poor. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
Today it remains a challenge to successfully both halt and induce labor progression. Induction of labor is a common obstetric intervention that 1 in 4 women will experience. The goal of induction of labor is to achieve a vaginal birth, however in almost 40% of first-time mothers it fails. Failed labor inductions require a caesarean delivery, which is associated with a vast range of adverse effects for both the mother and her baby. In this application we propose that a simple manipulation of room light will increase the success of vaginal birth through the use of optimal room light settings (halting labor=lights ON, promoting labor=reduced room light/red room light). A sparse literature has shown that the hormone melatonin might be an important hormone to consider during late pregnancy and labor. Pineal melatonin release is only released in darkness at night, where nocturnal light such as room light, suppress pineal melatonin release, reducing uterine contractions (Olcese et al 2013, https://pubmed.ncbi.nlm.nih.gov/22556015/, Rahman et al 2019, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6453747/). Melatonin receptor become upregulated in the pregnant myometrium (uterine smooth muscle), and a small study in women having preterm birth, showed a high expression of melatonin receptor, at a gestational week where women not having preterm uterine contractions, had low levels of melatonin receptor, suggesting that premature increase in myometrium melatonin receptor might in some women be associated with preterm labor and birth (Olcese et al 2013, https://pubmed.ncbi.nlm.nih.gov/22556015/). This study will address how room light impacts melatonin release and uterine contractions in healthy pregnant women.
Publications & conference data
No peer-reviewed publications indexed yet for this trial.
Verify or expand the search:
- PubMed search for NCT04521972
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT04521972 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Michigan State University
- Last refreshed: 18 September 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04521972.
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