ISRCTN ISRCTN29932826
DOI https://doi.org/10.1186/ISRCTN29932826
Secondary identifying numbers N/A
Submission date
25/01/2016
Registration date
02/03/2016
Last edited
06/09/2021
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Genetic Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims
Approximately one child in 500-600 is born with a cleft of the lip and/or palate. These arise in the womb when the different components of the lips, the upper jaw and the hard and soft palate fail to complete their growth. One-sided (or unilateral) clefts can include a complete gap in the lip, jaw, and palate. Even with modern surgery to close the cleft, affected children often require lengthy treatment into the late teens to optimise facial and dental appearance, speech, and hearing. The initial surgeries performed in the first year or so of life, are critical in determining the long term outcomes and the need for subsequent treatment. However, there is a great deal of uncertainty and controversy concerning the surgical timing and techniques that should be adopted. The purpose of this study is to compare the success of different surgical techniques for closing complete unilateral clefts of the lip and palate.

Who can participate?
Infants attending cleft lip and palate centres in Denmark, Finland, Norway, Sweden, and the UK

What does the study involve?
Participants are randomly allocated to one of four groups. Those in group 1 undergo lip and soft palate closure at 3-4 months of age and hard palate closure at 12 months/ Those in group 2 have similar treatment than those in group 1 – they just have their hard palate repair at 36 months. Those in group 3 undergo lip repair at 3-4 months and hard and soft palate closure at 12 months. Those in group 4 have their lip and hard palate repaired at 3-4 months and soft palate repaired at 12 months. Records for each group of participants is collected, which includes short term results of the surgery, the recovery period, the need for further surgery, longer term speech and language development, dental and jaw development, and nose/lip appearance.

What are the possible benefits and risks of participating?
Not provided at time of registration

Where is the study run from?
A total of 9 Cleft Lip and Palate/ Craniofacial Centres in Denmark, Finland, Norway, Sweden and the UK.

When is the study starting and how long is it expected to run for?
September 1997 to September 2024

Who is funding the study?
European Commission

Who is the main contact?
Professor Gunvor Semb
gunvor.semb@manchester.ac.uk

Contact information

Prof Gunvor Semb
Scientific

The University of Manchester
School of Dentistry
NEW ADDRESS: JR Moore Building, Oxford Road
Manchester M13 9PL
Tel. +44- (0)161-2756792
Manchester
M13 9PL
United Kingdom

Phone +44- (0)161-2756809
Email gunvor.semb@manchester.ac.uk

Study information

Study designFamily of three RCTs
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleRandomised control trial of primary surgery for cleft lip and palate
Study hypothesisNull hypothesis that different surgical protocols for closure of complete unilateral cleft lip and palate do not produce different outcomes
Ethics approval(s)1. Regional Committee for Medical Research Ethics, Norway, Oslo and Bergen (Regional Komite for Medisinsk Forskningsetikk), 29/08/1997, ref: S-971522
2. Research Committee at Karolinska Hospital, Sweden - Stockholm and Linkoping (Forskningskommitten vid Karolinska Sjukhuset), 31/10/1997, ref: 97-372
3. Gothenburg Regional Research Committee at the University of Gothenburg, Sweden (Göteborgs Regionala Forskningskommitten vid Göteborgs Universitet), 21/05/1997, ref: R257-97
4. Science Ethics Committee, Denmark- Copenhagen and Aarhus (Videnskabsetisk Komite), 13/10/1997, ref: 309/97
5. Helsinki University Hospital Ethics Committee ( HYKS Sairaala Eettinen Toimikunta), 04/09/1997
6. Local Research Ethics Committee, UK - Manchester, Salford & Trafford, June 1999, ref: 99/197
7. Queen’s University of Belfast Ethics Committee, 08/06/1999, ref: 79/99
ConditionComplete unilateral cleft lip and palate
InterventionOne surgical protocol was defined to serve as a common method in each trial against which the established local protocols were compared. The common surgical protocol was lip and soft palate closure at 3-4 months and hard palate closure at 12 months.

Trial 1: compared this with only a variation in timing: hard palate repair at 36 months
Trial 2: compared this with lip repair at 3-4 months followed by hard and soft palate closure at 12 months
Trial 3: compared this with lip and hard palate repair at 3-4 months and soft palate repair at 12 months

The primary outcomes at age 5 were speech and dentofacial development, with a series of perioperative and longer term secondary outcomes.
Intervention typeProcedure/Surgery
Primary outcome measure1. Speech and language at age 5 years, via blinded panel assessments using standardised audio/video recordings with regard to consonant proficiency and ratings of velopharyngeal competency and hypernasality
2. Dentofacial development at 5 years, via blinded panel ratings of dentofacial relationship represented by articulated plaster casts of the dentition using the Five Year Yardstick and Huddart-Bodenham Index
Secondary outcome measures1. Perioperative complications recorded by medical and nursing staff
2. Operation and hospitalisation time
3. Postoperative recovery and feeding recorded by medical and nursing staff
4. Speech at 12 and 18 months and 3 years
5. Symptomatic fistulae
6. Hearing
7. Burden of care
8. Parent satisfaction at age 5 years
Overall study start date01/09/1997
Overall study end date01/09/2024

Eligibility

Participant type(s)Patient
Age groupChild
SexBoth
Target number of participants450
Total final enrolment429
Participant inclusion criteriaCaucasian patients born with non-syndromic unilateral complete cleft lip and palate. Patients with a soft tissue bridge (Simonart`s band) could be included as long as the width of the soft tissue bridge was not more than 5mm. The prevailing language of the country where recruited had to be spoken at home.
Participant exclusion criteria1. Non-caucasian
2. Wide Simonart band
3. Prevailing local language not spoken at home
Recruitment start date01/09/1997
Recruitment end date11/11/2006

Locations

Countries of recruitment

  • Denmark
  • England
  • Finland
  • Norway
  • Sweden
  • United Kingdom

Study participating centres

Copenhagen/Aarhus Cleft and Craniofacial Centre
Copenhagen
2100
Denmark
Helsinki Cleft and Craniofacial Centre
Helsinki
00029 HUS
Finland
Gothenburg Cleft and Craniofacial Centre
Gothenburg
SE 405 30
Sweden
Linköping Cleft and Craniofacial Centre
Linköping
S-581 85
Sweden
Stockholm Cleft and Craniofacial
Stockholm
S-171 76
Sweden
Oslo Cleft and Craniofacial
Oslo
NO-0424
Norway
Bergen Cleft and Craniofacial
Bergen
N-5009
Norway
Manchester Cleft Centre
Manchester
M13 9WL
United Kingdom
Royal Belfast Hospital for Sick Children
Belfast
BT 12 6BE
United Kingdom

Sponsor information

University of Manchester
University/education

Oxford Rd
Manchester
M13 9PL
England
United Kingdom

Phone +44 (0)161 275 6792
Email Philip.Eyres@manchester.ac.uk
Website http://www.manchester.ac.uk/
ROR logo "ROR" https://ror.org/027m9bs27
Oslo University Hospital Rikshospitalet
Hospital/treatment centre

Sognsvannsveien 20
0372 Oslo
Oslo
0372 Oslo
Norway

Funders

Funder type

Government

European Commission
Government organisation / National government
Alternative name(s)
European Union, Comisión Europea, Europäische Kommission, EU-Kommissionen, Euroopa Komisjoni, Ευρωπαϊκής Επιτροπής, Европейската комисия, Evropské komise, Commission européenne, Choimisiúin Eorpaigh, Europskoj komisiji, Commissione europea, La Commissione europea, Eiropas Komisiju, Europos Komisijos, Európai Bizottságról, Europese Commissie, Komisja Europejska, Comissão Europeia, Comisia Europeană, Európskej komisii, Evropski komisiji, Euroopan komission, Europeiska kommissionen, EC, EU

Results and Publications

Intention to publish date29/02/2016
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
Publication and dissemination planTen manuscripts regarding age 5 outcomes and parent satisfaction will be submitted for journal publication in February 2016
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Results article results 01/02/2017 Yes No
Other publications analysis of baseline morphology 24/12/2020 29/12/2020 Yes No
Results article comparison of dental arch relationships and dental indices at 5, 8, and 10 years 03/09/2021 06/09/2021 Yes No

Editorial Notes

06/09/2021: Publication reference added.
29/12/2020: The following changes have been made:
1. Publication reference added.
2. The final enrolment number has been added from the reference.
31/01/2019: Publication references added.