Who is sponsoring NCT03337789?

NCT03337789 is sponsored by Ewha Womans University.

What drugs are being tested in NCT03337789?

Interventions in NCT03337789: Polygonatum sibiricum, Placebo.

What condition does NCT03337789 study?

NCT03337789 studies Healthy Adults With Subjective Sleep Complaints.

Is NCT03337789 still recruiting?

NCT03337789 is currently completed. Last updated 23 January 2018.

Last reviewed 2018-01-23 · How we verify

NCT03337789

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Efficacy of Polygonatum Sibiricum on Sleep Quality Improvement

Completed NA Last updated 23 January 2018

What this trial tests

NA trial testing Polygonatum sibiricum in Healthy Adults With Subjective Sleep Complaints in 80 participants. Completed in 31 December 2017.

Timeline

7 November 2016

Primary endpoint
31 December 2017

31 December 2017

Quick facts

Lead sponsor	Ewha Womans University
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	quadruple
Primary purpose	treatment
Enrollment	80
Start date	7 November 2016
Primary completion	31 December 2017
Estimated completion	31 December 2017
Sites	1 location across South Korea

Drugs / interventions tested

Polygonatum sibiricum
Placebo

Conditions studied

Healthy Adults With Subjective Sleep Complaints — all drugs for Healthy Adults With Subjective Sleep Complaints →

Sponsor

Ewha Womans University

Who can join

Adults 20 to 65, any sex, with Healthy Adults With Subjective Sleep Complaints. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

This study aims to investigate the efficacy and safety of Polygonatum sibiricum for sleep quality improvement.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

Efficacy of <i>Polygonatum sibiricum</i> on Mild Insomnia: A Randomized Placebo-Controlled Trial.
Ha E, Hong H, Kim TD, Hong G, et al · · 2019 · cited 11× · PMID 31349690 · DOI 10.3390/nu11081719

Verify or expand the search:

Other Ewha Womans University trials

Trials by the same sponsor.

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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)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT03337789 (US National Library of Medicine, public domain)
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Ewha Womans University
Last refreshed: 23 January 2018

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/NCT03337789.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing