Soluble Epoxide Hydrolase Inhibition and Insulin Resistance

NCT ID: NCT03486223

Last Updated: 2023-03-23

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

16 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-05-17

Study Completion Date

2021-11-18

Brief Summary

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The purpose of this study is to test how soluble epoxide hydrolase (sEH) inhibition with GSK2256294 affects tissue sEH activity and insulin sensitivity.

Detailed Description

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We will test the hypothesis that soluble epoxide hydrolase (sEH) inhibition with GSK2256294 improves insulin sensitivity using the gold-standard, hyperinsulinemic-euglycemic clamps, with stable isotope dilution to assess hepatic gluconeogenesis. We will assess insulin-stimulated vasodilation in the forearm using plethysmography and in the renal vasculature using para-aminohippurate (PAH, IND#133828) clearance. We will obtain adipose and muscle tissue before and after clamp to assess insulin signaling in these tissues.

Subjects are randomized to treatment with the sEH inhibitor GSK2256294 (10mg/day) or matching placebo for one week. On the seventh day of drug treatment, subjects will report to the CRC in the morning after an overnight fast to undergo a hyperinsulinemic-euglycemic clamp with adipose tissue biopsies.

During the Hyperinsulinemic-euglycemic clamp, insulin will be infused for 2 hours at low dose (20 mU/m2/min) and 2 hours at high dose (80 mU/m2/min) to assess insulin sensitivity. The Glucose Infusion Rate (GIR) will be adjusted to maintain glucose near 95 mg/dL. The average GIR during the final 30 minutes of the high dose period will be used as the measure of insulin sensitivity.

After completion of the study day, subjects will undergo a seven-week washout from study drug and then receive the opposite drug for one week. On the seventh day of treatment they will report to the CRC after an overnight fast and repeat the study day protocol.

Conditions

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Diabetes Mellitus Endocrine System Diseases Glucose Metabolism Disorders PreDiabetes Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Arm 1 and 2 are crossover arms
Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators
Arms 1/2 are placebo controlled and blinded to investigator and participant

Study Groups

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Placebo then GSK2256294

Subjects will receive placebo oral capsule daily by mouth for 7 days, then seven week washout and then GSK2256294 daily by mouth for 7 days.

Group Type EXPERIMENTAL

GSK2256294

Intervention Type DRUG

Drug will be taken daily by mouth for 7 days.

Placebo oral capsule

Intervention Type DRUG

Placebo will be taken daily by mouth for 7 days.

GSK2256294 then Placebo

Subjects will receive GSK2256294 daily by mouth for 7 days, then seven week washout and then placebo oral capsule daily by mouth for 7 days.

Group Type EXPERIMENTAL

GSK2256294

Intervention Type DRUG

Drug will be taken daily by mouth for 7 days.

Placebo oral capsule

Intervention Type DRUG

Placebo will be taken daily by mouth for 7 days.

Interventions

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GSK2256294

Drug will be taken daily by mouth for 7 days.

Intervention Type DRUG

Placebo oral capsule

Placebo will be taken daily by mouth for 7 days.

Intervention Type DRUG

Other Intervention Names

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GSK2256294 10mg oral capsule Placebo

Eligibility Criteria

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Inclusion Criteria

1. Men and women,
2. Age 21 to 50 years, and
3. Pre-diabetes as defined by

1. Fasting plasma glucose 100-125 mg/dL, or
2. Two-hour plasma glucose 140-199 mg/dL, or
3. HbA1c 5.7-6.4%
4. BMI ≥ 30 kg/m2, inclusive
5. For female subjects, the following conditions must be met:

1. Postmenopausal status for at least one year, or
2. Status-post surgical sterilization, or
3. If of childbearing potential, utilization of adequate birth control and willingness to undergo serum β-hcg testing prior to drug treatment and on every study day.

Exclusion Criteria

1. Diabetes type 1 or type 2, as defined by a fasting plasma glucose of 126 mg/dL or greater, a two-hour plasma glucose of 200 mg/dL or greater, a HbA1c \>6.4%, or the use of anti-diabetic medication
2. Subjects who have participated in a weight-reduction program during the last six month or whose weight has increased or decreased more than two kg over the preceding six months
3. Resistant hypertension, defined as hypertension requiring the administration of more than three anti-hypertensive agents including a diuretic to achieve control
4. Use of spironolactone
5. Pregnancy or breast-feeding
6. Any history of smoking
7. Any history of cancer including skin cancer, any history of a precancerous lesion, abnormal PSA, or lack of screening adherent to American Cancer Society Guidelines for the Early Detection of Cancer
8. Cardiovascular disease such as myocardial infarction within six months prior to enrollment, presence of angina pectoris, significant arrhythmia, congestive heart failure (left ventricular hypertrophy acceptable), deep-vein thrombosis, pulmonary embolism, second- or third-degree heart block, mitral valve stenosis, aortic stenosis, or hypertrophic cardiomyopathy
9. Abnormal corrected QT interval on screening ECG (QTc).
10. Treatment with anticoagulants
11. History of serious neurologic disease such as cerebral hemorrhage, stroke, or transient ischemic attack
12. History or presence of immunological or hematological disorders
13. Diagnosis of asthma requiring regular inhaler use
14. Clinically significant gastrointestinal impairment that could interfere with drug absorption
15. Impaired hepatic function (aspartate amino transaminase \[AST\] and/or alanine amino transaminase \[ALT\] \>3.0 x upper limit of normal range)
16. History of gastrointestinal bleed
17. Estimated glomerular filtration rate (eGFR)\<60 mL/min/1.73 m2 or with an albumin-to-creatinine ratio (UACR) \>300µg/mg, where eGFR is determined by the four-variable Modification of Diet in Renal Disease (MDRD) equation, where serum creatinine is expressed in mg/dL and age in years: eGFR (mL/min/1.73m2)=186 • Scr-1.154 • age-0.203 • (1.212 if black) • (0.742 if female)
18. Hematocrit \<35%
19. Any underlying or acute disease requiring regular medication which could possibly pose a threat to the subject or make implementation of the protocol or interpretation of the study results difficult
20. Treatment with chronic systemic glucocorticoid therapy
21. Treatment with lithium salts
22. History of alcohol or drug abuse
23. Treatment with any investigational drug in the month preceding the study
24. Mental conditions rendering a subject unable to understand the nature, scope, and possible consequences of the study
25. Inability to comply with the protocol, e.g., uncooperative attitude, inability to return for follow-up visits, and unlikelihood of completing the study
Minimum Eligible Age

21 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institutes of Health (NIH)

NIH

Sponsor Role collaborator

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NIH

Sponsor Role collaborator

Vanderbilt University Medical Center

OTHER

Sponsor Role lead

Responsible Party

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James Matt Luther

Associate Professor of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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James M Luther, MD

Role: PRINCIPAL_INVESTIGATOR

Vanderbilt University Medical Center

Nancy J Brown, MD

Role: PRINCIPAL_INVESTIGATOR

Vanderbilt University Medical Center

Locations

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Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status

Countries

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United States

References

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Luther JM, Brown NJ. Epoxyeicosatrienoic acids and glucose homeostasis in mice and men. Prostaglandins Other Lipid Mediat. 2016 Sep;125:2-7. doi: 10.1016/j.prostaglandins.2016.07.010. Epub 2016 Jul 19.

Reference Type BACKGROUND
PMID: 27448715 (View on PubMed)

Gangadhariah MH, Dieckmann BW, Lantier L, Kang L, Wasserman DH, Chiusa M, Caskey CF, Dickerson J, Luo P, Gamboa JL, Capdevila JH, Imig JD, Yu C, Pozzi A, Luther JM. Cytochrome P450 epoxygenase-derived epoxyeicosatrienoic acids contribute to insulin sensitivity in mice and in humans. Diabetologia. 2017 Jun;60(6):1066-1075. doi: 10.1007/s00125-017-4260-0. Epub 2017 Mar 28.

Reference Type BACKGROUND
PMID: 28352940 (View on PubMed)

Ramirez CE, Shuey MM, Milne GL, Gilbert K, Hui N, Yu C, Luther JM, Brown NJ. Arg287Gln variant of EPHX2 and epoxyeicosatrienoic acids are associated with insulin sensitivity in humans. Prostaglandins Other Lipid Mediat. 2014 Oct;113-115:38-44. doi: 10.1016/j.prostaglandins.2014.08.001. Epub 2014 Aug 28.

Reference Type BACKGROUND
PMID: 25173047 (View on PubMed)

Luther JM, Ray J, Wei D, Koethe JR, Hannah L, DeMatteo A, Manning R, Terker AS, Peng D, Nian H, Yu C, Mashayekhi M, Gamboa J, Brown NJ. GSK2256294 Decreases sEH (Soluble Epoxide Hydrolase) Activity in Plasma, Muscle, and Adipose and Reduces F2-Isoprostanes but Does Not Alter Insulin Sensitivity in Humans. Hypertension. 2021 Sep;78(4):1092-1102. doi: 10.1161/HYPERTENSIONAHA.121.17659. Epub 2021 Aug 30.

Reference Type RESULT
PMID: 34455816 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

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5R01DK117875

Identifier Type: NIH

Identifier Source: secondary_id

View Link

170468

Identifier Type: -

Identifier Source: org_study_id

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