Neonates From Birth up to 5 Days PostpartumWEIGHTNCT07599332
Observational Study Exploring the Timing of Postnatal Neonate Weight Measurements
An observational study of Neonates From Birth up to 5 Days Postpartum, run by East Suffolk and North Essex NHS Foundation Trust at 1 site in United Kingdom.
Trial summary
This study will help us address the national question of when is the best day to weigh neonates to ensure we give neonates the best possible chance within the first week of their life, maximizing breastmilk without giving formula unnecessarily for weight loss management, and improved maternal mental health. Read more about this study
- Who is it for?
- Ages 16 years and older, women only
- Conditions the study is for
- Neonates From Birth up to 5 Days Postpartum
- How many people
- 20 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- 24 Nov 2025to 30 Jul 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 16 years and older
- Women only
- No healthy volunteers
- Child, Adult, Older adult
Study population: Patients who birth at Ipswich Hospital and receive their postnatal care with Ipswich Community midwives.
Who may be able to join
- Any patient who births their baby within the timeframe of the data collection will be eligible to join the study
Who cannot join
- Patients who birth their babies outside of the range as above.
- Babies who are admitted to the neonatal unit from birth.
- Mothers less than 16 years old
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Hannah Stansfield contact
United Kingdom1 site, 1 recruiting
- Recruiting
East Suffolk and North Essex NHS Foundation Trust
Ipswich
About this study
This study will help us address the national question of when is the best day to weigh neonates to ensure we give neonates the best possible chance within the first week of their life, maximizing breastmilk without giving formula unnecessarily for weight loss management, and improved maternal mental health.
Read the detailed description
The impact of even 1 formula supplementation can have detrimental effects on both mum and baby; decreased eagerness to breastfeed - leading to low milk supply, can trigger allergic sensitisation, and loss of confidence for the mother in breastfeeding. Maternal mental health within the first week of the postnatal period can be a turbulent time with increased hormones levels and adapting to a new normal. Ensuring good well-being of mothers is incredibly important to ensure the mother is able to bond well with her baby - a healthy loving relationship between parents and babies is integral to the brain development of the baby. Exposure in the first 1 year of the baby's life is the most integral part in helping to shape their emotional, cognitive and social capabilities (HM Government, 2021). This research project is of local and national importance for patient and parent care to improve long term health benefits of protecting breastfeeding journeys.
The main aim of the study is to collect data on the weight of neonates in the first 5 days of life.
Women will be consented in the first 24 hours following the birth of their baby if they fit the criteria. Baseline information will be collected:
- Time \& Date of birth
- Type of birth
- Weight at birth
- Any medical risk factors i.e diabetes, high blood pressure etc
- Feeding type (breastfeeding, formula, or both)
- Gestation at birth
A maternity support worker will be tasked with weighing all the babies as near to their birth times possible and all data will be collected and logged. Following this the data will be sorted and correlated to look for any trends:
- What day had the biggest weight loss
- When did the weight begin to increase
- Were bigger weight losses linked with a certain type of birth or medical condition that the patient had
- Did the gestational age when the baby was born have any link with greater weight loss
The end of the study will be defined as the date when the last baby entered into the study had had their final weight completed at the end of the 5-day period. This also included the collection of all weight data for the 5-day duration and any necessary data validation and quality checks. Following the final weight measurement, the data will be prepared for analysis to examine the trends in weight loss/gain over the study period. The results will be analysed and disseminated as outlined. Following on from this pilot study, it is hoped that a larger national study will take place to continue to collect weight loss data and help define the normal weight loss/gain which neonates experience in the first few days of life.
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Natural birth cohort | Pregnant women who have given birth naturally. | |
| Caesarean cohort | Pregnant women who give birth via caesarean section |
What is being measured
The primary outcome is the main question the study is designed to answer.
To find out when the best day to weigh a newborn baby is between birth and 5 days.
This pilot sample with give us a baseline of data and help to calculate the data size needed to adequately power a larger multi-centre study to provide evidence to inform the best day/days to weight babies after birth and allow for the development phase of the production of individual weight loss charts for neonates. Babies will be weighed from day of birth up until 5 days old (5 separate weights)
Measured: Between birth and 5 days old of newborn baby.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 May 2026
- Study start24 Nov 2025
- Primary completion30 Jul 2026 (estimated)
- Study completion30 Jul 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Neonates From Birth up to 5 Days PostpartumStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 20 participants (estimated)
Sponsor and investigators
- Lead sponsor
- East Suffolk and North Essex NHS Foundation Trust
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Stephanie Roberson, Principal investigator, East Suffolk and North Essex NHS Foundation Trust
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07599332
- Sponsor's protocol ID
- 22/100
- Acronym
- WEIGHT
- Status last verified
- Feb 2026
- First submitted
- 5 Feb 2026
- Last updated
- 20 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 20 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Observational Study Exploring the Timing of Postnatal Neonate Weight Measurements
- ClinicalTrials.gov ID
- NCT07599332
- Acronym / sponsor ID
- WEIGHT / 22/100
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 20 participants (estimated)
- Lead sponsor
- East Suffolk and North Essex NHS Foundation TrustUniversity, hospital or other
- Study start
- 24 Nov 2025 (actual)
- Primary completion
- 30 Jul 2026 (estimated)
- Study completion
- 30 Jul 2026 (estimated)
- First posted
- 20 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will help us address the national question of when is the best day to weigh neonates to ensure we give neonates the best possible chance within the first week of their life, maximizing breastmilk without giving formula unnecessarily for weight loss management, and improved maternal mental health.
Detailed description
The impact of even 1 formula supplementation can have detrimental effects on both mum and baby; decreased eagerness to breastfeed - leading to low milk supply, can trigger allergic sensitisation, and loss of confidence for the mother in breastfeeding. Maternal mental health within the first week of the postnatal period can be a turbulent time with increased hormones levels and adapting to a new normal. Ensuring good well-being of mothers is incredibly important to ensure the mother is able to bond well with her baby - a healthy loving relationship between parents and babies is integral to the brain development of the baby. Exposure in the first 1 year of the baby's life is the most integral part in helping to shape their emotional, cognitive and social capabilities (HM Government, 2021). This research project is of local and national importance for patient and parent care to improve long term health benefits of protecting breastfeeding journeys.
The main aim of the study is to collect data on the weight of neonates in the first 5 days of life.
Women will be consented in the first 24 hours following the birth of their baby if they fit the criteria. Baseline information will be collected:
- Time \& Date of birth
- Type of birth
- Weight at birth
- Any medical risk factors i.e diabetes, high blood pressure etc
- Feeding type (breastfeeding, formula, or both)
- Gestation at birth
A maternity support worker will be tasked with weighing all the babies as near to their birth times possible and all data will be collected and logged. Following this the data will be sorted and correlated to look for any trends:
- What day had the biggest weight loss
- When did the weight begin to increase
- Were bigger weight losses linked with a certain type of birth or medical condition that the patient had
- Did the gestational age when the baby was born have any link with greater weight loss
The end of the study will be defined as the date when the last baby entered into the study had had their final weight completed at the end of the 5-day period. This also included the collection of all weight data for the 5-day duration and any necessary data validation and quality checks. Following the final weight measurement, the data will be prepared for analysis to examine the trends in weight loss/gain over the study period. The results will be analysed and disseminated as outlined. Following on from this pilot study, it is hoped that a larger national study will take place to continue to collect weight loss data and help define the normal weight loss/gain which neonates experience in the first few days of life.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Natural birth cohort | – | –Pregnant women who have given birth naturally. |
| Caesarean cohort | – | –Pregnant women who give birth via caesarean section |
Who may qualify
- Ages
- 16 years and older
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Patients who birth at Ipswich Hospital and receive their postnatal care with Ipswich Community midwives.
Key inclusion criteria (1 listed)
- Any patient who births their baby within the timeframe of the data collection will be eligible to join the study
Key exclusion criteria (3 listed)
- Patients who birth their babies outside of the range as above.
- Babies who are admitted to the neonatal unit from birth.
- Mothers less than 16 years old
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
To find out when the best day to weigh a newborn baby is between birth and 5 days.
Time frame: Between birth and 5 days old of newborn baby.
This pilot sample with give us a baseline of data and help to calculate the data size needed to adequately power a larger multi-centre study to provide evidence to inform the best day/days to weight babies after birth and allow for the development phase of the production of individual weight loss charts for neonates. Babies will be weighed from day of birth up until 5 days old (5 separate weights)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 May 2026.
- Individual participant dataSharing planned: Undecided
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Hannah Stansfield contact
Stephanie Roberson principal investigator
East Suffolk and North Essex NHS Foundation Trust
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Neonates From Birth up to 5 Days Postpartum, run by East Suffolk and North Essex NHS Foundation Trust at 1 site in United Kingdom.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 20 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Stephanie Roberson (01473 703052, stephanie.roberson@esneft.nhs.uk), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
To find out when the best day to weigh a newborn baby is between birth and 5 days. (time frame: Between birth and 5 days old of newborn baby.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 May 2026.