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ObesityBCAANCT04886973

Effect of Insulin Resistance on Branched Chain Amino Acid Metabolism.

A study testing Administration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids. in people with Obesity and Insulin Resistance, run by Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran at 1 site in Mexico.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

It has been observed that subjects with obesity and insulin resistance have higher concentrations of branched chain amino acids in plasma or serum. However, this association has been established under fasting conditions, so they only give information about a metabolic state and do not reflect the dynamics and… Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Obesity, Insulin Resistance
What is being tested?
Administration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids.
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteMexico
Study dates
31 Mar 2022to 29 Jul 2022
Phase
Interventional
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 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Inclusion criteria for cases (subjects with insulin resistance).
  • Male and female.
  • Adults between 18 and 50 years of age.
  • Body Mass Index (BMI) ≥ 18.5 and ≤ 40 kg/m2.
  • HOMA index ≥ 2.5
  • In the case of women, being in the follicular phase of the menstrual cycle.
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  • Inclusion criteria for controls (subjects without insulin resistance).
  • Male and female
  • Adults between 18 and 50 years of age.
  • Body Mass Index (BMI) ≥ 18.5 and ≤ 40 kg/m2.
  • HOMA index < 2.5
  • Blood glucose < 100 mg/dL
  • In the case of women, being in the follicular phase of the menstrual cycle.

Who cannot join

  • Patients with any type of diabetes.
  • Patients with kidney disease diagnosed by any physician.
  • Patients with creatinine > 1.3 mg/dL for men and > 1.1 mg/dL for women and/or Blood Urea Nitrogen (BUN) > 20 mg/dL.
  • Patients with acquired diseases secondarily producing obesity and diabetes.
  • Patients who have suffered a cardiovascular event.
  • Weight loss > 3 kg in the last 3 months.
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  • Patients with any catabolic diseases.
  • Pregnancy status.
  • Positive smoking.
  • Treatment with any medication (except contraceptives and proton pump inhibitors)
  • Having suffered any infection in the last 20 days.

Trial locations and contacts

1 site in 1 country.

Mexico1 site
  • Instituto Nacional de Ciencias Medicas Y Nutricion Salvador Zubiran

    México, 14080

Other trials in Mexico

About this study

It has been observed that subjects with obesity and insulin resistance have higher concentrations of branched chain amino acids in plasma or serum. However, this association has been established under fasting conditions, so they only give information about a metabolic state and do not reflect the dynamics and flexibility of the metabolism of these amino acids in the absence or presence of insulin resistance. The main aim of this study is to compare the catabolism of branched chain amino acids and their keto acids in subjects with and without insulin resistance, after the infusion of an amino acid solution with high concentration of the branched chain amino acids, leucine, valine, and isoleucine. The results of this project will allow the investigators to understand the dynamics of the branched chain amino acids and their derivatives, and its relationship with insulin resistance, which could eventually be used to design nutritional strategies to treat insulin resistance and thus, delay the development of type 2 diabetes.

Read the detailed description

An 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids, leucine, isoleucine, and valine, will be administered intravenously. The dose will be calculated considering the 25% of the estimated protein per day. For example, if the patient is 70 kg and the investigators consider 1g/kg/day, the amount of protein to be administered will be 17.5 grams (70 x 0.25 = 17.5 grams). This dose will be placed in a short peripheral intravenous catheter and administered at a rate of 1.5ml per minute, using an infusion pump. The patient will be monitored all the time by a physician. After the administration of the L- amino acid solution, the investigators will take blood samples at 0, 15, 30, 45, 60, 90 and 120 minutes to determine the area under the curve for glucose, insulin, amino acids and branched chain keto acids.

Being tested
Administration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids.
Medical subject headings
Obesity, Insulin Resistance

What participants receive

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

  • Administration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids.Other

    Intravenous administration of 8% crystalline L-amino acids with high concentrations of branched chain amino acids.

Study groups in NCT04886973
Study groupRoleWhat they receive
Subjects with a Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) ≥ 2.5ExperimentalAdministration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids. The dose will be calculated considering the 25% of the estimated protein per day (1 g/kg/day). This dose will be placed in a short peripheral intravenous catheter and administered at a rate of 1.5ml per minute, using an infusion pump. The patient will be monitored all the time by a physician.
Receives: Other: Administration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids.
Subjects with a Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) < 2.5ExperimentalAdministration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids. The dose will be calculated considering the 25% of the estimated protein per day (1 g/kg/day). This dose will be placed in a short peripheral intravenous catheter and administered at a rate of 1.5ml per minute, using an infusion pump. The patient will be monitored all the time by a physician.
Receives: Other: Administration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids.

What is being measured

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

  1. Area under the curve of branched-chain amino acids.

    Time Frame: Measured for 0,15,30,45,60,90,120 minutes following the intravenous administration of the amino acid solution rich in branched chain amino acids.

    The branched chain amino acids concentration will be determined by liquid chromatography coupled to mass spectrometry (LC-MS/MS), and the area under the curve will be calculated using the trapezoidal rule.

    Measured: 2 hours

Secondary outcomes (6)
  1. Area under the curve of branched-chain keto acids.

    Time Frame: Measured for 0,15,30,45,60,90,120 minutes following the intravenous administration of the amino acid solution rich in branched chain amino acids.

    The branched chain keto acids concentration will be determined by liquid chromatography coupled to mass spectrometry (LC-MS/MS), and the area under the curve will be calculated using the trapezoidal rule.

    Measured: 2 hours

  2. Area under the curve of insulin.

    Time Frame: Measured for 0,15,30,45,60,90,120 minutes following the intravenous administration of the amino acid solution rich in branched chain amino acids.

    The insulin concentration will be determined using an ELISA assay and the area under the curve will be calculated using the trapezoidal rule.

    Measured: 2 hours

  3. Area under the curve of glucose.

    Time Frame: Measured for 0,15,30,45,60,90,120 minutes following the intravenous administration of the amino acid solution rich in branched chain amino acids.

    The glucose concentration will be determined using an enzymatic assay (Hexokinase) and the area under the curve will be calculated using the trapezoidal rule.

    Measured: 2 hours

  4. Respiratory quotient.

    Time Frame: Measured for 0,15,30,45,60,90,120 minutes following the intravenous administration of the amino acid solution rich in branched chain amino acids The respiratory quotient will be determined by indirect calorimetry and the area under the curve will be calculated using the trapezoidal rule.

    Measured: 2 hours

  5. Expression of the enzyme branched-chain aminotransferase 2 (BCAT2)

    Time Frame: Measured for 0, 60 and 120 minutes following the intravenous administration of the amino acid solution rich in branched chain amino acids.

    The expression of enzyme branched chain aminotransferase 2 (BCAT2) will be determined in mononuclear cells isolated from blood by Western Blot and quantitative PCR.

    Measured: 2 hours

  6. Expression of the enzyme branched-chain keto acid dehydrogenase (BCKDH)

    Time Frame: Measured for 0, 60 and 120 minutes following the intravenous administration of the amino acid solution rich in branched chain amino acids.

    The expression of enzyme branched chain ketoacid dehydrogenase (BCKDH) will be determined in mononuclear cells isolated from blood by Western Blot and quantitative PCR.

    Measured: 2 hours

Timeline

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

  1. First posted14 May 2021
  2. Study start31 Mar 2022
  3. Primary completion29 Jul 2022
  4. Study completion29 Jul 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Model description
The groups will receive the treatment simultaneously
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04886973
Sponsor's protocol ID
FNU-3549-20-23-1
Acronym
BCAA
Status last verified
Jul 2022
First submitted
7 May 2021
Last updated
2 Aug 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Shimomura Y, Yamamoto Y, Bajotto G, Sato J, Murakami T, Shimomura N, Kobayashi H, Mawatari K. Nutraceutical effects of branched-chain amino acids on skeletal muscle. J Nutr. 2006 Feb;136(2):529S-532S. doi: 10.1093/jn/136.2.529S.

    PubMed 16424141
  • Zhang S, Zeng X, Ren M, Mao X, Qiao S. Novel metabolic and physiological functions of branched chain amino acids: a review. J Anim Sci Biotechnol. 2017 Jan 23;8:10. doi: 10.1186/s40104-016-0139-z. eCollection 2017.

    PubMed 28127425
  • Brosnan JT, Brosnan ME. Branched-chain amino acids: enzyme and substrate regulation. J Nutr. 2006 Jan;136(1 Suppl):207S-11S. doi: 10.1093/jn/136.1.207S.

    PubMed 16365084
  • Newgard CB, An J, Bain JR, Muehlbauer MJ, Stevens RD, Lien LF, Haqq AM, Shah SH, Arlotto M, Slentz CA, Rochon J, Gallup D, Ilkayeva O, Wenner BR, Yancy WS Jr, Eisenson H, Musante G, Surwit RS, Millington DS, Butler MD, Svetkey LP. A branched-chain amino acid-related metabolic signature that differentiates obese and lean humans and contributes to insulin resistance. Cell Metab. 2009 Apr;9(4):311-26. doi: 10.1016/j.cmet.2009.02.002.

    PubMed 19356713
  • Floegel A, Stefan N, Yu Z, Muhlenbruch K, Drogan D, Joost HG, Fritsche A, Haring HU, Hrabe de Angelis M, Peters A, Roden M, Prehn C, Wang-Sattler R, Illig T, Schulze MB, Adamski J, Boeing H, Pischon T. Identification of serum metabolites associated with risk of type 2 diabetes using a targeted metabolomic approach. Diabetes. 2013 Feb;62(2):639-48. doi: 10.2337/db12-0495. Epub 2012 Oct 4.

    PubMed 23043162
  • Zhao X, Han Q, Liu Y, Sun C, Gang X, Wang G. The Relationship between Branched-Chain Amino Acid Related Metabolomic Signature and Insulin Resistance: A Systematic Review. J Diabetes Res. 2016;2016:2794591. doi: 10.1155/2016/2794591. Epub 2016 Aug 25.

    PubMed 27642608
  • Wang TJ, Larson MG, Vasan RS, Cheng S, Rhee EP, McCabe E, Lewis GD, Fox CS, Jacques PF, Fernandez C, O'Donnell CJ, Carr SA, Mootha VK, Florez JC, Souza A, Melander O, Clish CB, Gerszten RE. Metabolite profiles and the risk of developing diabetes. Nat Med. 2011 Apr;17(4):448-53. doi: 10.1038/nm.2307. Epub 2011 Mar 20.

    PubMed 21423183
  • Lynch CJ, Adams SH. Branched-chain amino acids in metabolic signalling and insulin resistance. Nat Rev Endocrinol. 2014 Dec;10(12):723-36. doi: 10.1038/nrendo.2014.171. Epub 2014 Oct 7.

    PubMed 25287287
  • Serralde-Zuniga AE, Guevara-Cruz M, Tovar AR, Herrera-Hernandez MF, Noriega LG, Granados O, Torres N. Omental adipose tissue gene expression, gene variants, branched-chain amino acids, and their relationship with metabolic syndrome and insulin resistance in humans. Genes Nutr. 2014 Nov;9(6):431. doi: 10.1007/s12263-014-0431-5. Epub 2014 Sep 27.

    PubMed 25260659
  • Gunnerud U, Holst JJ, Ostman E, Bjorck I. The glycemic, insulinemic and plasma amino acid responses to equi-carbohydrate milk meals, a pilot- study of bovine and human milk. Nutr J. 2012 Oct 12;11:83. doi: 10.1186/1475-2891-11-83.

    PubMed 23057765

Questions about this trial

What is this clinical trial studying?

A study testing Administration of an 8% crystalline L-amino acid solution with high concentrations of branched chain amino acids. in people with Obesity and Insulin Resistance, run by Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran at 1 site in Mexico.

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 13 inclusion and 11 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 2 Aug 2022. 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 Mexico. 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?

Area under the curve of branched-chain amino acids. (time frame: 2 hours). 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 NCT04886973, which also lists 10 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 2 Aug 2022.

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