11C- metomidate positron emission tomography (PET) scanning for Conn's syndrome

ISRCTN ISRCTN58267591
DOI https://doi.org/10.1186/ISRCTN58267591
Secondary identifying numbers 6936
Submission date
12/05/2010
Registration date
12/05/2010
Last edited
02/06/2015
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Timothy J. Burton
Scientific

Clinical Pharmacology Unit
Hills Road
Cambridge
CB2 0QQ
United Kingdom

Study information

Study designSingle-centre non-randomised treatment trial
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleHypertension due to Conn's adenoma - the localisation of adrenal cortical adenomas by 11C-metomidate PET scanning following dexamethasone and fludrocortisone suppression
Study objectivesIn order to ensure appropriate treatment, it is important to be able to identify Conn's adenoma reliably from other adrenal conditions. Current identification techniques, such as adrenal venous sampling, are time consuming, often invasive and probematic making treatment decisions difficult. It is proposed that non-invasive PET/CT scanning using 11C-metomidate as a radiomarker will identify people with Conn's adenoma as well as currently used invasive techniques.

More details can be found here: http://public.ukcrn.org.uk/Search/StudyDetail.aspx?StudyID=6936
Ethics approval(s)Cambridgeshire 4 Research Ethics Board, 12/05/2008, ref: 08/H0305/20
Health condition(s) or problem(s) studiedTopic: Metabolic and Endocrine; Subtopic: Metabolic and Endocrine (all Subtopics); Disease: Metabolic & Endocrine (not diabetes)
InterventionIn addition to standard investigations for suspected Conn's adenoma, each participant will undergo a positron emission tomography (PET)/computed tomography (CT) scan with intravenous 11C-metomidate (500 MBq) as a radio-label. The first 6 participants will undergo 3 scans to evaluate which suppression protocol produces the clearest image:
1. Without any additional drug therapies
2. Oral 0.5 mg dexamethosone 6-hourly for 48 hours prior to scan
3. Oral 0.5 mg dexamethosone 6-hourly for 48 hours prior to scan with the addition of 400 µg of fludrocortisone for 3 days prior to the scan
Intervention typeOther
Primary outcome measureThe sensitivity of 11C-metamidate PET/CT scanning for detecting Conn's adenoma
Secondary outcome measures1. The specificity of 11C-metomidate PET/CT scanning for detecting Conn's Syndrome
2. To determine the suppression protocol that leads to the best sensitivity of 11C-metomidate PET/CT scanning for detecting Conn's Syndrome
Overall study start date17/04/2009
Completion date30/04/2012

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participantsPlanned sample size: 50
Key inclusion criteria1. Male or female
2. Aged 18 years or over
3. Suspected Conn's syndrome or suspected adrenal hyperplasia or healthy with non-functional adenoma
Key exclusion criteria1. Inability to give informed consent
2. Heart failure
3. Women of childbearing potential not using contraception
4. Pregnant or breast feeding women
Date of first enrolment17/04/2009
Date of final enrolment30/04/2012

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Addenbrooke's Hospital
Cambridge
CB2 0QQ
United Kingdom

Sponsor information

Cambridge University Hospitals NHS Foundation Trust (UK)
Hospital/treatment centre

Addenbrooke's Hospital
Box 277, Hills Road
Cambridge
CB2 2QQ
England
United Kingdom

Website http://www.cuh.org.uk/research/research_index.html
ROR logo "ROR" https://ror.org/04v54gj93

Funders

Funder type

Charity

British Heart Foundation (BHF) (UK)
Private sector organisation / Trusts, charities, foundations (both public and private)
Alternative name(s)
the_bhf, The British Heart Foundation, BHF
Location
United Kingdom

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/01/2012 Yes No