NCT06058871

Brief Summary

During Chinese mothers' doing the month, they are often housebound and find it difficult to attend group support or seek help during the first month postpartum which is the critical period in sustaining exclusive breastfeeding and at high risk of weaning. This can adversely affect their general well-being, and are associated with stress, anxiety and postnatal depression. Thus, mothers have expressed the need for real-time, real world, personalized support that allow them to get immediate breastfeeding support, helps in overcoming the challenges and subsequently improve exclusive breastfeeding. The aim of the proposed study is to assess the effectiveness of an ecological momentary intervention (EMI)-based breastfeeding intervention in improving exclusive breastfeeding outcomes and to inform clinical practice and services for breastfeeding mothers in Hong Kong. Such interventions have been considered as a rising shift from traditional model of care towards an e-technology based health model that may improve exclusive breastfeeding duration globally.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
518

participants targeted

Target at P75+ for not_applicable

Timeline
1mo left

Started Apr 2024

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
active not recruiting

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 Progress95%
Apr 2024Jun 2026

First Submitted

Initial submission to the registry

September 21, 2023

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 28, 2023

Completed
7 months until next milestone

Study Start

First participant enrolled

April 22, 2024

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 20, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 20, 2026

Last Updated

March 5, 2026

Status Verified

December 1, 2025

Enrollment Period

2.2 years

First QC Date

September 21, 2023

Last Update Submit

March 3, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Proportion of participants in each study groups exclusively breastfeeding

    The number of participants who are exclusively breastfeeding at each time point.

    At 1, 2, 3 and 6 months postpartum

  • Overall duration of any breastfeeding in each study groups

    The number of participants who are any breastfeeding at each time point.

    At 1, 2, 3 and 6 months postpartum

Secondary Outcomes (2)

  • Breastfeeding self-efficacy scores between the two study groups

    baseline and 1 and 3 months postpartum

  • Infant feeding knowledge and attitude scores between the two study groups

    baseline and 1 and 3 months postpartum

Study Arms (2)

EMI intervention group

EXPERIMENTAL

Participants in the intervention group will receive instant messaging (i.e., an EMI delivery platform). Our multidisciplinary team, including an obstetrician, midwife, lactation consultant, biostatistician, and social psychologist, will develop a message library and protocol for EMI delivery.

Behavioral: Regular messagesBehavioral: Nurse-led real-time support messages (chat type)

Control group

NO INTERVENTION

Participants in the control group will receive text messages containing general information on breastfeeding from the Hospital Authority, which is open to the public and includes reminder text messages of important follow-up surveys. Messages will not be personalised, and nurse-led real-time support messages will not be available.

Interventions

The EMI-I messages will be delivered in sequence over three months. The content, frequency, and timing of the messages will be determined by participant preferences, as determined during the baseline evaluation, as personalisation is central to such cognitive and behavioural changes. The messages will mainly be text-based, but other forms such as videos will also be used, depending on the needs of the participants.

EMI intervention group

The nurse will initiate 10-15-minute chats via an online platform (e.g., WhatsApp) after all instant messages for each session have been delivered. The nurse will guide the participants to set goals for breastfeeding. Any anticipated barriers will be discussed. The participants can also initiate the chats. While there is no limit to the number of chat messages, nurse-led real-time support messages will be provided during working hours (i.e., 9 am-6 pm on weekdays).

EMI intervention group

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • be primiparous mothers
  • have had a singleton pregnancy and live birth
  • have birthed a full-term infant (37-42 weeks gestation)
  • speak Cantonese
  • be a Hong Kong resident
  • have no serious medical or obstetrical complications and have not had their infant admitted to the neonatal intensive care unit (NICU)

You may not qualify if:

  • is \< 37 weeks gestation
  • has an Apgar score \< 8 at five minutes
  • has a birthweight \< 2500 grams
  • is born with any severe medical conditions or congenital malformations
  • is placed in the special care nursery for more than 48 hours after delivery
  • is placed in the intensive care nursery after delivery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Queen Elizabeth Hospital

Hong Kong, Hong Kong

Location

Queen Mary Hospital

Hong Kong, Hong Kong

Location

MeSH Terms

Conditions

Breast Feeding

Condition Hierarchy (Ancestors)

Feeding BehaviorBehavior

Study Officials

  • Kris YW Dr Lok, PhD

    School of Nursing, HKU

    PRINCIPAL INVESTIGATOR

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

September 21, 2023

First Posted

September 28, 2023

Study Start

April 22, 2024

Primary Completion (Estimated)

June 20, 2026

Study Completion (Estimated)

June 20, 2026

Last Updated

March 5, 2026

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations