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ObesityAMIGROSNCT06065930

Adaptive Mechanisms In GRown up ObeSity Study (AMIGROS)

An observational study of Obesity and Type 2 Diabetes, run by Vastra Gotaland Region at 1 site in Sweden.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The investigator recently showed that the glycan-binding adipokine galectin-1 increased during overfeeding and that galectin-1 independently could predict type 2 diabetes. Further, the molecules that induce insulin release in the fasting state when blood glucose is normal remain elusive. Read more about this study

Who is it for?
Ages 40 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Obesity, Type 2 Diabetes
What is being tested?
Subcutaneous microdialysis
How many people
45 participants
Where
1 siteSweden
Study dates
5 May 2023to 31 Dec 2028
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 40 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Obese subjects and healthy lean controls will be recruited by advertisements in local newspapers and social media. Catchment area is western Sweden having about 1.5 million inhabitants.

Who may be able to join

  • Men and women of age: 40.0 - 70.0 years
  • BMI: 18.0 - 25.0 kg/m2 (lean subjects) and BMI 30.0 - 38.0 kg/m2 (Ob-IS and Ob-IR)
  • Fasting insulin < 9.0 mU/l (lean and Ob-IS subjects) and fasting insulin > 9.0 mU/l (Ob-IR)
  • Fasting glucose < 6.1 mmol/l
  • Body temperature < 37.5°C
  • First-degree relative with known T2D in Ob-IR
Show all 9Show fewer
  • Weight stable ± 5 kg < 3 months before screening
  • Fluent in Swedish and can follow given instructions
  • Consent given to participate

Who cannot join

  • First-degree relative with known T2D in lean or Ob-IS subjects
  • Alcohol intake > 10 units/week or known high alcohol intake < 10 years back in time
  • Daily use of cigarettes or daily frequent use of smokeless tobacco not enabling the participant to suspend nicotine during a visit at the research center without getting abstinent
  • Regular physical activity corresponding to Saltin-Gimby level 4
  • Special diet eg Atkins or 5:2 for weight reduction. Vegetarian food accepted if duration > 1 year
  • Impaired fasting glucose (IFG) (venous fasting plasma glucose 6.1-6.9 mmol/l)
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  • Type 2 diabetes according to ADA criteria
  • Ongoing or previous ischemic heart disease, eg angina pectoris, unstable angina or previous myocardial infarction treated with platelet inhibitors or non vitamin-K oral anticoagulants
  • Heart failure (NYHA II-IV) or cardiac arrhytmia that needs medical treatment
  • Previous cerebral infarction or transitory ischemic episodes (TIA) treated with platelet inhibitors or other anticoagulants
  • Peripheral arterial insufficiency eg claudication
  • Hypertension >170/105 mmHg at screening or more than one class of drugs for treatment of known hypertension
  • Lipid disorder defined as fasting serum triglycerides > 5.0 mmol/l or serum cholesterol > 7.5 mmol/l
  • Hematologic diseases such as anemia not being substituted (Hb < 130 g/l in males and Hv < 120 g/l in females) or disease causing bleeding disorder
  • Renal failure defined as absolute estimated glomerular filtration rate (eGFRcreatinine) < 60 ml/min/1.73 m2
  • Hypothyroidism defined as TSH > 4.0 mIE/l and symptoms
  • Liver disease e.g. hepatitis B, cirrhosis or conditions where AST or ALT are > 2 times UNL
  • Systemic inflammatory disease e.g. rheumatoid arthritis, ulcerative cholitis or Chrons disease. Celiac disease, dyspepsia or IBS are excepted
  • Chronic bronchitis or chronic obstructive pulmonary with disease symptoms
  • Previous pancreatitis or other disease in pancreas that needs treatment
  • Migraine elicited by stress
  • Spinal insufficiency causing inconvenience lying in supine position during the study day
  • Drug addiction interfering with the study procedures
  • Psychiatric insufficiency interfering with the study procedures
  • Medication with potential to affect adipose tissue metabolism that can not be stopped 10 days before the study days
  • Treatment with beta-blockers
  • Less than three months from previous use of antibiotics
  • Cancer disease < 5 years since diagnosis
  • Physical examination or laboratory results indicating that participation in the study is inappropriate
  • Pregnancy or intention to be pregnant during the study
  • Shift work > 1 time per week that might interfere with the circadian rhytm
  • Other reasons that causes the PI to believe that participation is inappropriate

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Per-Anders E Jansson, Prof contact

46 70 203 30 10

per-anders.jansson@wlab.gu.se

Vagner R Silva, PhD contact

46 76 849 77 03

vagner.silva@wlab.gu.se

Sweden1 site, 1 recruiting
  • Gothia Forum CTC

    Gothenburg, Region Vastra Gotaland, SE-413 46

    Anna-Carin Varvne, Manager, 46 70 082 50 91, anna-carin.varvne@vgregion.se

    Sari Huusko, Team leader, 46 70 082 34 22, saari.huusko@vgregion.se

    Recruiting

Other trials in Sweden

About this study

Official title: Mechanistic Studies in Human Subcutaneous Adipose Tissue

The investigator recently showed that the glycan-binding adipokine galectin-1 increased during overfeeding and that galectin-1 independently could predict type 2 diabetes. Further, the molecules that induce insulin release in the fasting state when blood glucose is normal remain elusive. It is possible that galectin-1 is involved in adaptive mechanisms in adipose tissue in obese subjects.

Read the detailed description

The investigator will define adaptive mechanisms in adipose tissue associated with galectin-1 in obese insulin-sensitive (Ob-IS) subjects compared with obese insulin-resistant (Ob-IR) subjects and lean healthy controls. Further, the investigator will study molecules secreted from adipose tissue that might trigger insulin secretion when blood glucose is normal.

The investigator hypothesizes that Ob-IS subjects keep fatty acid levels normal through an adaptive response in adipose tissue that involves up-regulation of galectin-1 for dampening of immune cell activity and stimulation of lipolysis.

Being tested
Subcutaneous microdialysis
Keywords
Adipose cells, Fatty acids, Microdialysis, Stromal vascular fraction, Ectopic lipid accumulation, Fasting hyperinsulinemia, Insulin resistance, Amino acids
Medical subject headings
Obesity, Diabetes Mellitus, Type 2, Insulin Resistance

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Subcutaneous microdialysisDevice

    Group with Ob-IS participants, collection of abdominal subcutaneous interstitial dialysates after an overnight´s fast for later measurements of metabolites and peptides eg galectin-1.

    Group with Ob-IR participants, collection of abdominal subcutaneous interstitial dialysates after an overnight´s fast for later measurements of metabolites and peptides eg galectin-1.

    Group with Leans, collection of abdominal subcutaneous interstitial dialysates after an overnight´s fast for later measurements of metabolites and peptides eg galectin-1.

Study groups in NCT06065930
Study groupRoleWhat they receive
Obese insulin-sensitive subjects (Ob-IS)Obese Insulin Sensitive subjects (BMI > 30 kg/m2, fasting insulin < 9.0 mU/l and fasting plasma glucose < 6.1 mmol/l) undergoing subcutaneous microdialysis, needle biopsy, glucose clamp and MRI.
Receives: Device: Subcutaneous microdialysis
Obese insulin-resistant subjects (Ob-IR)Obese Insulin Resistant subjects (BMI > 30 kg/m2, fasting insulin > 9.0 mU/l and fasting plasma glucose < 6.1 mmol/l) undergoing subcutaneous microdialysis, needle biopsy, glucose clamp and MRI.
Receives: Device: Subcutaneous microdialysis
Lean healthy controls (Lean)Lean healthy controls (BMI < 25 kg/m2, fasting insulin < 9.0 mU/l and fasting plasma glucose < 6.1 mmol/l) undergoing subcutaneous microdialysis, needle biopsy, glucose clamp and MRI.
Receives: Device: Subcutaneous microdialysis

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Fasting galectin-1 concentration in subcutaneous interstitial fluid

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  2. Fasting Neuropilin-1 concentration in subcutaneous interstitial fluid

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

Secondary outcomes (17)
  1. Fasting serum galectin-1 concentrations

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  2. Fasting serum neuropilin-1 concentrations

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  3. Fasting fatty acid levels in subcutaneous dialysates

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  4. Fasting plasma fatty acid concentrations

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  5. Fasting amino acid profile in subcutaneous dialysates

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  6. Fasting serum amino acid concentrations

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  7. Circulating metabolome including lipoprotein-related parameters measured by Mass Spectrometry

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  8. Circulating lipidome including lipid derivatives measured by Mass Spectrometry

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  9. Peptides identified by Mass Spectrometry in subcutaneous dialysates

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

  10. Ectopic lipid accumulation assessed by magnetic resonance imaging in relative measures

    Comparison between eligible Ob-IS and Ob-IR subjects < 9 weeks after enrolment

    Measured: Nine weeks

  11. RNA sequencing results of subcutaneous adipose cells

    Comparison between eligible Ob-IS and Ob-IR subjects < 6 weeks after enrolment

    Measured: Six weeks

  12. Function of immune cells in subcutaneous stromal vascular fraction characterized by Fluorescence Activated Cell Sorting (FACS)

    Comparison between eligible Ob-IS and Ob-IR subjects < 6 weeks after enrolment

    Measured: Six weeks

  13. Activation of insulin signaling proteins in adipose cells assessed by Western blot

    Comparison between eligible Ob-IS and Ob-IR subjects < 6 weeks after enrolment

    Measured: Six weeks

  14. Function of microvascular endothelial cells in subcutaneous stromal vascular fraction

    Comparison between eligible Ob-IS and Ob-IR subjects < 6 weeks after enrolment

    Measured: Six weeks

  15. Messenger RNA expression in whole adipose tissue

    Comparison between eligible Ob-IS and Ob-IR subjects < 6 weeks after enrolment

    Measured: Six weeks

  16. Dysbiosis in faeces assessed by 16S rRNA gene sequencing

    Comparison between eligible Ob-IS and Ob-IR subjects < 6 weeks after enrolment

    Measured: Six weeks

  17. Metabolites in urine including acylcarnitines measured by Mass Spectrometry

    Comparison between eligible Ob-IS and Ob-IR subjects < 3 weeks after enrolment

    Measured: Three weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Oct 2023
  2. Study start5 May 2023
  3. Primary completion31 Dec 2025 (estimated)
  4. Study completion31 Dec 2028 (estimated)

Resources

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
Case-control
Time perspective
Cross-sectional
Enrolment
45 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06065930
Sponsor's protocol ID
2023-02051-02
Other IDs
2023
Acronym
AMIGROS
Status last verified
May 2023
First submitted
11 Jul 2023
Last updated
4 Oct 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Sensitive personal data will be collected. Results will be shared if possible in the light of GDPR and other regulations, on an individual basis, after contact with the PI.

Publications

  • Fryk E, Sundelin JP, Strindberg L, Pereira MJ, Federici M, Marx N, Nystrom FH, Schmelz M, Svensson PA, Eriksson JW, Boren J, Jansson PA. Microdialysis and proteomics of subcutaneous interstitial fluid reveals increased galectin-1 in type 2 diabetes patients. Metabolism. 2016 Jul;65(7):998-1006. doi: 10.1016/j.metabol.2016.04.003. Epub 2016 Apr 13.

    PubMed 27282870
  • Drake I, Fryk E, Strindberg L, Lundqvist A, Rosengren AH, Groop L, Ahlqvist E, Boren J, Orho-Melander M, Jansson PA. The role of circulating galectin-1 in type 2 diabetes and chronic kidney disease: evidence from cross-sectional, longitudinal and Mendelian randomisation analyses. Diabetologia. 2022 Jan;65(1):128-139. doi: 10.1007/s00125-021-05594-1. Epub 2021 Nov 7.

    PubMed 34743218
  • Fryk E, Olausson J, Mossberg K, Strindberg L, Schmelz M, Brogren H, Gan LM, Piazza S, Provenzani A, Becattini B, Lind L, Solinas G, Jansson PA. Hyperinsulinemia and insulin resistance in the obese may develop as part of a homeostatic response to elevated free fatty acids: A mechanistic case-control and a population-based cohort study. EBioMedicine. 2021 Mar;65:103264. doi: 10.1016/j.ebiom.2021.103264. Epub 2021 Mar 9.

    PubMed 33712379
  • Fryk E, Silva VRR, Jansson PA. Galectin-1 in Obesity and Type 2 Diabetes. Metabolites. 2022 Sep 30;12(10):930. doi: 10.3390/metabo12100930.

    PubMed 36295832

Questions about this trial

What is this clinical trial studying?

An observational study of Obesity and Type 2 Diabetes, run by Vastra Gotaland Region at 1 site in Sweden.

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 9 inclusion and 32 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 4 Oct 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 Sweden. 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 Per-Anders E Jansson, Prof (46 70 203 30 10, per-anders.jansson@wlab.gu.se), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Fasting galectin-1 concentration in subcutaneous interstitial fluid (time frame: Three weeks). 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 NCT06065930, which also lists 4 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 4 Oct 2023.

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