Condition category
Neonatal Diseases
Date applied
Date assigned
Last edited
Prospectively registered
Overall trial status
Recruitment status
No longer recruiting
Publication status
Results overdue

Plain English Summary

Background and study aims
Cleft lip affects around 1 in 700 infants and is the most common congenital (present at birth) disorder. Affected children are at increased risk for a range of psychological problems in infancy and the school years. Previous research has found that, compared to interactions between mothers and unaffected infants, interactions between mothers and infants with cleft lips are more likely to be disrupted, particularly in the first few months of life, before surgical lip repair is conducted. These interactions have been found to be significant for the cognitive (recognising and understanding things) development of the child, both in children with a cleft lip and within normal populations. We propose to test whether a treatment aimed at enhancing the quality of the mother-infant interactions, in those first few months of life before surgery is conducted, improves mothers' sensitivity to their babies and leads to a better cognitive development of the baby at 18 months.

Who can participate?
Mothers must be 18 or over. The mothers themselves are healthy, but their babies must be diagnosed with a cleft lip.

What does the study involve?
We propose to randomly assign half of the participants to 'Watch & Discover' treatment, and the other half to 'Support, Information and Advice'. 'Watch & Discover' is the test treatment, whereby we would make short films of mother and baby together and then watch them back with the mother highlighting positive interactions and their baby's cues. In this way we would hope to enhance the quality of the mother-child interaction. The control treatment group would receive support, information and advice, giving mothers the opportunity to discuss issues around having a baby with cleft lip. We would visit the mother and baby at home over six sessions, starting when the baby is between 1-2 weeks old, and ending before the baby has lip surgery at 12 weeks. We would perform assessments on the baby and mother-child interactions at 11 weeks (after the treatment has finished), 9 months and 18 months, with the final assessment of cognitive outcome at 18 months.

What are the possible benefits and risks of participating?
The information we get from this study may benefit future treatments.
We believe that there are minimal risks for mothers participating in the study, and indeed hope it will be a positive experience for them. However the study may involve discussion of potentially emotionally sensitive areas; the study therapist has extensive experience of working with mothers in this field and this support will be addition to their routine clinical care.

Where is the study run from?
University of Oxford (lead centre), University of Reading, Spires Cleft Centre, West Midlands Regional Cleft Centre, South Thames Cleft Service.

When is the study starting and how long is it expected to run for?
The study started in Jan 2012 and will run until May 2016. The study will be recruiting participants for 35 months.

Who is funding the study?
This study is funded by the Barclay Foundation.

Who is the main contact?
Professor Alan Stein

Trial website

Contact information



Primary contact

Prof Alan Stein


Contact details

University of Oxford
Dept of Psychiatry
Warneford Hospital
United Kingdom

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

Improving Cognitive Outcomes of Children with Cleft Lip and/or Palate: a randomised controlled trial aimed at enhancing the quality of mother-infant interactions



Study hypothesis

For infants with a cleft lip, an intervention designed to enhance maternal sensitivity during mother-infant interactions will be associated with better cognitive performance at 18 months compared to a control intervention.

Ethics approval

NRES Committee South Central -Oxford C, 11/12/2012, ref: 12/SC/0626

Study design

Multi-centre randomised controlled assessor-blinded interventional study

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

Not available in web format, please use contact details to request patient information material


Cleft lip and palate


There are two therapies which constitute the study interventions:
1. The index group will receive a treatment aimed specifically to improve mother-infant interaction (Watch & Discover)
2. The control group will receive a treatment called Support, Information & Advice (SIA)

Each participant will receive six therapy sessions delivered in the participants’ homes which will begin when the baby is less than 10 days old. The final therapy session will occur when the baby is approximately 11 weeks old prior to primary cleft lip repair (which occurs at 12 weeks old).

Intervention type



Drug names

Primary outcome measure

1. Maternal sensitivity in face to face interaction with the infant immediately following treatment (when infant aged 11 weeks and prior to lip cleft repair), measured using the Global Rating Scale dimension of sensitivity.
2. Infant cognitive development at 18 months (assessed by Bayley Scales of Infant and Toddler Development, 3rd edition)

Secondary outcome measures

1. Maternal gaze, measured by eye tracking at 11 weeks
2. Maternal imitation at 11 weeks
3. Infant attention (assessed by the Focused Attention Task) at 9 & 18 months
4. Infant emotion regulation (assessed by the LAB-TAB) at 9 & 18 months
5. Maternal appraisal, mood and trauma symptoms immediately after treatment and at 9 & 18 months, assessed by means of self-report questionnaires [Hospital Anxiety & Depression Scale (HADS), Parental Appraisal of Cleft Questionnaire (PAC-Q) and Post-traumatic Stress Diagnostic Scale (PDS)]

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Mother is willing and able to give informed consent for participation in the study
2. Mother, aged 18 years or above
3. Infant diagnosed with cleft lip with/without cleft palate
4. Able (in the Investigators' opinion) and willing to comply with all study requirements
5. Infant born at > 35 weeks gestation
6. Infant birth weight of > 2000 grams
7. Mother willing to allow her and her infant’s General Practitioner and cleft Consultant to be notified of participation in the study

Participant type


Age group




Target number of participants

80 (40 in each arm)

Participant exclusion criteria

1. Life-threatening or other serious physical illness in the mother
2. Serious illness or medical complication in the infant
3. Infant in Child Protection Plan (child protection register)
4. Mother unable to converse in English
5. Mother not primary caregiver to infant
6. Mother has severe psychiatric diagnosis
7. Mother and infant live outwith 90 minutes travel of research centre

Recruitment start date


Recruitment end date



Countries of recruitment

United Kingdom

Trial participating centre

University of Oxford
United Kingdom

Sponsor information


University of Oxford (UK)

Sponsor details

Joint Research Office
Block 60
Churchill Hospital
United Kingdom

Sponsor type




Funder type


Funder name

The Barclay Foundation (UK)

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Basic results (scientific)

Publication list

Publication citations

Additional files

Editorial Notes

06/06/2018: No publications found, verifying study status with principal investigator.