Diabetes Mellitus, Type 2NCT02413762
The Role of Gut Hormones and Hepcidin in Type 2 Diabetes Mellitus
An observational study of Diabetes Mellitus, Type 2, run by Imperial College London Diabetes Centre at 1 site in United Arab Emirates.
Trial summary
This study aims to investigate the potential of the gut hormones GLP-1, PP, PYY and the iron regulatory hormone hepcidin as biomarkers for progression to complications in diabetes mellitus. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Diabetes Mellitus, Type 2
- How many people
- 1,512 participants
- Where
- 1 siteUnited Arab Emirates
- Study dates
- Mar 2015to Oct 2022
- Phase
- Observational
- Are there results?
- None posted in the registry
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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Adults resident in the UAE, attending ICLDC for normal healthcare.
Who may be able to join
- all
Who cannot join
- lack of capacity for informed consent; vulnerable individuals
Trial locations and contacts
1 site in 1 country.
United Arab Emirates1 site
Imperial College London Diabetes Centre
Abu Dhabi, 48338
About this study
This study aims to investigate the potential of the gut hormones GLP-1, PP, PYY and the iron regulatory hormone hepcidin as biomarkers for progression to complications in diabetes mellitus.
Read the detailed description
Iron overload and mechanisms inducing insulin resistance are reciprocally linked. Dietary iron absorption, and iron uptake in liver and adipose tissue, are regulated through the hormone hepcidin. Iron is implicated in microvascular and macrovascular disease pathways and therefore hepcidin may represent a biomarker for progression to complications in type 2 diabetes mellitus.
Serum pancreatic polypeptide levels correlate with visceral adiposity and may therefore contribute to the diagnosis of, and risk stratification in, the metabolic syndrome.
Hypothesis:
Measuring iron status, incretin hormones and serum pancreatic polypeptide will facilitate discrimination of patients at risk of vascular complications of T2DM and clinically significant non-alcoholic fatty liver disease.
Statistical analysis:
Serum/plasma level of hormone under investigation corrected for age, sex, BMI, diabetes duration, blood pressure, lipid profile, smoking status, treatment for diabetes, hypertension and dyslipidaemia, and HbA1c using multinomial logistic regression and Cox regression models.
- Conditions
- Diabetes Mellitus, Type 2
- Being tested
- No intervention
- Medical subject headings
- Diabetes Mellitus, Type 2
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
No interventionOther
No intervention
| Study group | Role | What they receive |
|---|---|---|
| NGT, no insulin resistance | Individuals with normal glucose tolerance without a diagnosis of IGF, IGT or Diabetes Mellitus. No intervention. | |
| IFG/IGT/T2DM | Individuals with a diagnosis of impaired glucose tolerance, impaired fasting glucose or type 2 diabetes mellitus. No intervention. | |
| Insulin resistance without IGT | e.g. polycystic ovarian syndrome. No intervention. | |
| IGT, no insulin resistance | e.g. T1DM. No intervention. | |
| Previous metabolic surgery | Previous metabolic surgery for weight loss or treatment of T2DM. No intervention. Receives: Other: No intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Microvascular complication of diabetes mellitus - prevalence and incidence
Prevalence at enrolment and subsequent incidence of background diabetic retinopathy, preproliferative or proliferative retinopathy, or diabetic maculopathy; microalbuminuria defined as two episodes > 3 months apart of ACR > 2.5 (male) or > 3.5 (female) mg/umol. Assessed through patient recall and examination of electronic medical record.
Measured: 5 years
Macrovascular complication of diabetes mellitus - prevalence and incidence
Prevalence at enrolment and subsequent incidence of composite endpoint of coronary artery disease (MI, ACS, percutaneous intervention), cerebrovascular disease (CVA, TIA), and peripheral arterial disease (ischaemic peripheral ulcer, revascularisation procedure, amputation). Assessed through patient recall and examination of electronic medical record.
Measured: 5 years
Secondary outcomes (1)
Progression to NAFLD or NASH
As defined by ultrasound criteria of NAFLD or evidence of fibrosis as measured using transient elastography, respectively
Measured: 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Apr 2015 (estimated)
- Study startMar 2015
- Primary completionAug 2017
- Study completionOct 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Diabetes Mellitus, Type 2Studies 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
- Cross-sectional
- Enrolment
- 1,512 participants (actual)
Sponsor and investigators
- Lead sponsor
- Imperial College London Diabetes Centre
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Nader Lessan, MBBS FRCP MD, Principal investigator, Imperial College London Diabetes Centre
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02413762
- Sponsor's protocol ID
- IREC019
- Status last verified
- May 2023
- First submitted
- 7 Apr 2015
- Last updated
- 1 Jun 2023
- Results posted
- No
- Data monitoring committee
- No
Publications
Sam AH, Sleeth ML, Thomas EL, Ismail NA, Mat Daud N, Chambers E, Shojaee-Moradie F, Umpleby M, Goldstone AP, Le Roux CW, Bech P, Busbridge M, Laurie R, Cuthbertson DJ, Buckley A, Ghatei MA, Bloom SR, Frost GS, Bell JD, Murphy KG. Circulating pancreatic polypeptide concentrations predict visceral and liver fat content. J Clin Endocrinol Metab. 2015 Mar;100(3):1048-52. doi: 10.1210/jc.2014-3450. Epub 2014 Dec 9.
PubMed 25490276Sam AH, Busbridge M, Amin A, Webber L, White D, Franks S, Martin NM, Sleeth M, Ismail NA, Daud NM, Papamargaritis D, Le Roux CW, Chapman RS, Frost G, Bloom SR, Murphy KG. Hepcidin levels in diabetes mellitus and polycystic ovary syndrome. Diabet Med. 2013 Dec;30(12):1495-9. doi: 10.1111/dme.12262. Epub 2013 Aug 19.
PubMed 23796160Fleming RE. Iron and inflammation: cross-talk between pathways regulating hepcidin. J Mol Med (Berl). 2008 May;86(5):491-4. doi: 10.1007/s00109-008-0349-8. No abstract available.
PubMed 18425494Fargion S, Dongiovanni P, Guzzo A, Colombo S, Valenti L, Fracanzani AL. Iron and insulin resistance. Aliment Pharmacol Ther. 2005 Nov;22 Suppl 2:61-3. doi: 10.1111/j.1365-2036.2005.02599.x.
PubMed 16225476Semple RK, Sleigh A, Murgatroyd PR, Adams CA, Bluck L, Jackson S, Vottero A, Kanabar D, Charlton-Menys V, Durrington P, Soos MA, Carpenter TA, Lomas DJ, Cochran EK, Gorden P, O'Rahilly S, Savage DB. Postreceptor insulin resistance contributes to human dyslipidemia and hepatic steatosis. J Clin Invest. 2009 Feb;119(2):315-22. doi: 10.1172/JCI37432. Epub 2009 Jan 26.
PubMed 19164855
Study at a glance
From the registry record, last updated by the sponsor on 1 Jun 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Role of Gut Hormones and Hepcidin in Type 2 Diabetes Mellitus
- ClinicalTrials.gov ID
- NCT02413762
- Acronym / sponsor ID
- IREC019
- Conditions
- Diabetes Mellitus, Type 2
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 1,512 participants (actual)
- Lead sponsor
- Imperial College London Diabetes CentreUniversity, hospital or other
- Study start
- Mar 2015 (actual)
- Primary completion
- Aug 2017 (actual)
- Study completion
- Oct 2022 (actual)
- First posted
- 10 Apr 2015 (estimated)
- 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 aims to investigate the potential of the gut hormones GLP-1, PP, PYY and the iron regulatory hormone hepcidin as biomarkers for progression to complications in diabetes mellitus.
Detailed description
Iron overload and mechanisms inducing insulin resistance are reciprocally linked. Dietary iron absorption, and iron uptake in liver and adipose tissue, are regulated through the hormone hepcidin. Iron is implicated in microvascular and macrovascular disease pathways and therefore hepcidin may represent a biomarker for progression to complications in type 2 diabetes mellitus.
Serum pancreatic polypeptide levels correlate with visceral adiposity and may therefore contribute to the diagnosis of, and risk stratification in, the metabolic syndrome.
Hypothesis:
Measuring iron status, incretin hormones and serum pancreatic polypeptide will facilitate discrimination of patients at risk of vascular complications of T2DM and clinically significant non-alcoholic fatty liver disease.
Statistical analysis:
Serum/plasma level of hormone under investigation corrected for age, sex, BMI, diabetes duration, blood pressure, lipid profile, smoking status, treatment for diabetes, hypertension and dyslipidaemia, and HbA1c using multinomial logistic regression and Cox regression models.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| NGT, no insulin resistance | – | –Individuals with normal glucose tolerance without a diagnosis of IGF, IGT or Diabetes Mellitus. No intervention. |
| IFG/IGT/T2DM | – | –Individuals with a diagnosis of impaired glucose tolerance, impaired fasting glucose or type 2 diabetes mellitus. No intervention. |
| Insulin resistance without IGT | – | –e.g. polycystic ovarian syndrome. No intervention. |
| IGT, no insulin resistance | – | –e.g. T1DM. No intervention. |
| Previous metabolic surgery | – | Other: No interventionPrevious metabolic surgery for weight loss or treatment of T2DM. No intervention. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Adults resident in the UAE, attending ICLDC for normal healthcare.
Key inclusion criteria (1 listed)
- all
Key exclusion criteria (1 listed)
- lack of capacity for informed consent; vulnerable individuals
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| No interventionNo intervention | Other | Previous metabolic surgery |
Primary outcome
Microvascular complication of diabetes mellitus - prevalence and incidence
Time frame: 5 years
Prevalence at enrolment and subsequent incidence of background diabetic retinopathy, preproliferative or proliferative retinopathy, or diabetic maculopathy; microalbuminuria defined as two episodes > 3 months apart of ACR > 2.5 (male) or > 3.5 (female) mg/umol. Assessed through patient recall and examination of electronic medical record.
Macrovascular complication of diabetes mellitus - prevalence and incidence
Time frame: 5 years
Prevalence at enrolment and subsequent incidence of composite endpoint of coronary artery disease (MI, ACS, percutaneous intervention), cerebrovascular disease (CVA, TIA), and peripheral arterial disease (ischaemic peripheral ulcer, revascularisation procedure, amputation). Assessed through patient recall and examination of electronic medical record.
1 secondary outcome
Progression to NAFLD or NASH
Time frame: 5 years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Jun 2023.
- Background: PubMed 25490276Sam AH, Sleeth ML, Thomas EL, Ismail NA, Mat Daud N, Chambers E, Shojaee-Moradie F, Umpleby M, Goldstone AP, Le Roux CW, Bech P, Busbridge M, Laurie R, Cuthbertson DJ, Buckley A, Ghatei MA, Bloom SR, Frost GS, Bell JD, Murphy KG. Circulating pancreatic polypeptide concentrations predict visceral and liver fat content. J Clin Endocrinol Metab. 2015 Mar;100(3):1048-52. doi: 10.1210/jc.2014-3450. Epub 2014 Dec 9.
- Background: PubMed 23796160Sam AH, Busbridge M, Amin A, Webber L, White D, Franks S, Martin NM, Sleeth M, Ismail NA, Daud NM, Papamargaritis D, Le Roux CW, Chapman RS, Frost G, Bloom SR, Murphy KG. Hepcidin levels in diabetes mellitus and polycystic ovary syndrome. Diabet Med. 2013 Dec;30(12):1495-9. doi: 10.1111/dme.12262. Epub 2013 Aug 19.
- Background: PubMed 18425494Fleming RE. Iron and inflammation: cross-talk between pathways regulating hepcidin. J Mol Med (Berl). 2008 May;86(5):491-4. doi: 10.1007/s00109-008-0349-8. No abstract available.
- Background: PubMed 16225476Fargion S, Dongiovanni P, Guzzo A, Colombo S, Valenti L, Fracanzani AL. Iron and insulin resistance. Aliment Pharmacol Ther. 2005 Nov;22 Suppl 2:61-3. doi: 10.1111/j.1365-2036.2005.02599.x.
- Background: PubMed 19164855Semple RK, Sleigh A, Murgatroyd PR, Adams CA, Bluck L, Jackson S, Vottero A, Kanabar D, Charlton-Menys V, Durrington P, Soos MA, Carpenter TA, Lomas DJ, Cochran EK, Gorden P, O'Rahilly S, Savage DB. Postreceptor insulin resistance contributes to human dyslipidemia and hepatic steatosis. J Clin Invest. 2009 Feb;119(2):315-22. doi: 10.1172/JCI37432. Epub 2009 Jan 26.
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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. This study is not recruiting at the moment.
Nader Lessan, MBBS FRCP MD principal investigator
Imperial College London Diabetes Centre
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 Diabetes Mellitus, Type 2, run by Imperial College London Diabetes Centre at 1 site in United Arab Emirates.
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 1 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: finished, as of the sponsor's last update on 1 Jun 2023. 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 Arab Emirates. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Microvascular complication of diabetes mellitus - prevalence and incidence (time frame: 5 years). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02413762, which also lists 5 linked publications.
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 1 Jun 2023; AzTrials last refreshed its copy on 8 Nov 2026.