NCT05406804

Brief Summary

This is a RCT study examining whether odor administration to mothers of very low birth weight infants promotes stabilization of vital signs compared with common nursing care. This study used breast milk olfactory stimuli familiar and liked by premature infants to understand the effects of olfactory stimuli on the physiological indicators of very low birth weight infants, the effect on the time of complete enteral nutrition, and the effects on growth and development of very low birth weight infants.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2020

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

July 1, 2020

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2021

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

February 14, 2022

Completed
4 months until next milestone

First Posted

Study publicly available on registry

June 6, 2022

Completed
Last Updated

June 6, 2022

Status Verified

April 1, 2022

Enrollment Period

1.3 years

First QC Date

February 14, 2022

Last Update Submit

June 2, 2022

Conditions

Keywords

Olfactory stimulationHeart rateOxygen saturationRespiratory rate

Outcome Measures

Primary Outcomes (1)

  • Ratio of stable heart rate

    During the intervention period, the frequency of the measured heart rate between 120 bpm and 160bpm divide the total frequency of heart rate monitoring. The heart rate, blood oxygen saturation and other data will be automatically uploaded to the system by the electrocardiogram monitor every minute, one for each one every minute, which is downloaded by the researcher and then entered into the computer.

    During the procedure.

Study Arms (2)

Breast milk olfactory stimulation care

EXPERIMENTAL

Let premature babies smell their mother's breast milk

Behavioral: Olfactory stimulation

Routine care

ACTIVE COMPARATOR

Prevent premature babies from smelling their mother's breast milk

Behavioral: Routine nursing care

Interventions

1\) For the premature infants who use non-invasive ventilation, place a single layer of gauze soaked in breast milk on the air outlet of the non-invasive ventilator. When inhaling oxygen with a high-flow nasal cannula, the same measure is performed, and the breast milk and sterile gauze soaked in breast milk are replaced every 4 hours. 2) For the premature infants who withdrawn from assisted ventilation, place the breast pad near the infants' nose, and replace the breast milk pad every 4 hours. Acquisition of breast milk pads: use the same brand of breast milk pads; put the breast milk pads used between 00:00 and 07:00 every day (use time \> 2 hours) into the same brand of milk storage bags, and use two left and right at the same time. 3) If the premature infants don't have any ventilation support, the breast milk stimulation method is the same as 2). This intervention will continue until premature infants discharge from hospital.

Breast milk olfactory stimulation care

Nursing is performed according to existing nursing practices. Nasal feeding is generally used.

Routine care

Eligibility Criteria

Age0 Hours - 24 Hours
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Gestational age at birth \<32 weeks;
  • Birth weight \< 1500 g;
  • Admission to hospital within 24 hours after birth;
  • Mother can provide breast milk

You may not qualify if:

  • Severe congenital malformations;
  • Complicated congenital heart disease;
  • Congenital gastrointestinal disease;
  • Intraventricular hemorrhage

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Children's Hospital of Fudan University

Shanghai, Shanghai Municipality, 201102, China

Location

Related Publications (1)

  • Yu L, Tao Y, Jia P, Li L, Lv T, Wang L, Song Q, Huan X, Liu C, Dou Y, Xuan Y, Hu XJ. Effect of breast milk olfactory experience on physiological indicators in very low birth weight infants: a randomized clinical trial. Sci Rep. 2025 Jul 1;15(1):20590. doi: 10.1038/s41598-025-05809-0.

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 14, 2022

First Posted

June 6, 2022

Study Start

July 1, 2020

Primary Completion

October 31, 2021

Study Completion

October 31, 2021

Last Updated

June 6, 2022

Record last verified: 2022-04

Locations