A Comparative Effectiveness Study of Major Glycemia-lowering Medications for Treatment of Type 2 Diabetes
NCT ID: NCT01794143
Last Updated: 2022-04-14
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
PHASE3
5047 participants
INTERVENTIONAL
2013-05-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Long-Term Effects of Insulin Plus Metformin Regimens on the Overall and Postprandial Glycemic Control of Patients With Type 2 Diabetes
NCT00191464
A Study in Patients With Type 2 Diabetes Mellitus
NCT01435616
Insulin Glargine for Diabetes Metabolism(DM)Type II Patients Under Enteral Nutrition
NCT01081938
Comparison of Type 2 Diabetes Pharmacotherapy Regimens
NCT05073692
Insulin Glargine in Type 2 Diabetic Patients
NCT00347100
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Sulfonylurea (glimepiride)
Sulfonylurea
Sulfonylurea (glimepiride)
Used in accordance with labeling and/or usual practice.
DPP-4 inhibitor
DPP-4 inhibitor (sitagliptin)
DPP-4 inhibitor (sitagliptin)
Used in accordance with labeling and/or usual practice
GLP-1 receptor agonist
GLP-1 receptor agonist (liraglutide)
GLP-1 receptor agonist (liraglutide)
Used in accordance with labeling and/or usual practice.
Insulin (glargine)
Insulin (glargine), Lantus
Insulin (glargine)
Used in accordance with labeling and/or usual practice.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Sulfonylurea (glimepiride)
Used in accordance with labeling and/or usual practice.
DPP-4 inhibitor (sitagliptin)
Used in accordance with labeling and/or usual practice
GLP-1 receptor agonist (liraglutide)
Used in accordance with labeling and/or usual practice.
Insulin (glargine)
Used in accordance with labeling and/or usual practice.
Other Intervention Names
Discover alternative or legacy names that may be used to describe the listed interventions across different sources.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
2. Duration of diagnosed diabetes \< 10 years
3. HbA1c criteria (at final run-in visit, \~2 weeks prior to randomization): 6.8-8.5%
4. Taking a daily dose of ≥ 1000 mg metformin for a minimum of 8 weeks at final run-in
5. Willingness to administer daily subcutaneous injections, take a second diabetes drug after randomization, potentially initiate insulin and intensify insulin therapy if study metabolic goals are not met, perform self-monitoring of blood glucose
6. Fluent in either English or Spanish
7. A negative pregnancy test for all females of childbearing potential (i.e. pre-menopausal, and not surgically sterile)
8. Provision of signed and dated informed consent prior to any study procedures
Exclusion Criteria
2. Current or previous (within past 6 months) treatment with any diabetes drug/glucose-lowering medication other than metformin (limited use of no longer than seven days is allowed, for example during hospitalization)
3. More than 10 years of treatment with metformin at time of randomization screening
4. History of intolerance or allergy or other contraindications to any of the proposed study medications
5. Resides in the same household with another GRADE study participant
6. Current need for any specific glucose-lowering medications solely for other conditions, for example for polycystic ovary syndrome
7. Symptomatic hyperglycemia requiring immediate therapy during screening or run-in, in the judgment of the physician
8. A life-threatening event within 30 days prior to screening or currently planned major surgery
9. Any major cardiovascular event in previous year, including history of myocardial infarction, stroke, or vascular procedure such as coronary artery or peripheral bypass grafting, stent placements (peripheral or coronary) or angioplasty.
10. Plans for pregnancy during the course of the study for women of child-bearing potential
11. History of or planning bariatric surgery, including banding procedures or surgical gastric and/or intestinal bypass (if banding removed, may be considered eligible after 1 year)
12. History of congestive heart failure (NYHA 3 or greater)
13. History of pancreatitis
14. History of cancer, other than non-melanoma skin cancer, that required therapy in the 5 years prior to randomization
15. Personal or family history of MEN-2 or family history of medullary thyroid cancer
16. Estimated GFR (eGFR) \<30 ml/min/1.73 m2 or end stage renal disease requiring renal replacement therapy
17. History of severe liver disease or acute hepatitis or ALT \> 3 times upper limit of normal
18. Current alcoholism or excessive alcohol intake
19. Previous organ transplant
20. Treatment with oral or systemic glucocorticoids (other than short-term treatment, for example for poison ivy) or disease likely to require periodic or regular glucocorticoid therapy (inhaled steroids are allowed)
21. Treatment with atypical antipsychotics
22. History of hemolytic anemia, chronic transfusion requirement, or other condition rendering HbA1c results unreliable as indicator of chronic glucose levels, or hematocrit \<35 for males and \<33 for females
23. Clinically or medically unstable with expected survival \<1 year
24. Unwillingness to permit sites to contact the PCP to communicate information about the study and the participant's data
25. No non-study PCP or inability to identify such a PCP (who will provide non-study care) by the time of final run-in
26. Participation in another interventional clinical trial
27. Previous randomization in the GRADE study
28. In the opinion of the principal investigator (PI), any other factor, including language barrier, likely to limit compliance with the protocol
30 Years
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Becton, Dickinson and Company
INDUSTRY
Bristol-Myers Squibb
INDUSTRY
Merck Sharp & Dohme LLC
INDUSTRY
Novo Nordisk A/S
INDUSTRY
Roche Diagnostics GmbH
INDUSTRY
Sanofi
INDUSTRY
Centers for Disease Control and Prevention
FED
GRADE Study Group
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
David M Nathan, MD
Role: STUDY_CHAIR
Massachusetts General Hospital
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
University of Alabama-Birmingham
Birmingham, Alabama, United States
Southwestern American Indian Center
Phoenix, Arizona, United States
Veterans Medical Research Foundation, San Diego (San Diego VA)
San Diego, California, United States
University of Colorado
Denver, Colorado, United States
Yale University School of Medicine
New Haven, Connecticut, United States
South Florida VA Foundation (Miami VA)
Miami, Florida, United States
Atlanta VA Medical Center
Decatur, Georgia, United States
Kaiser Permanente of Georgia
Duluth, Georgia, United States
Pacific Health Research and Education Institute (VA Pacific Islands)
Honolulu, Hawaii, United States
Indiana University School of Medicine
Indianapolis, Indiana, United States
University of Iowa
Iowa City, Iowa, United States
Pennington Biomedical Research Center
Baton Rouge, Louisiana, United States
MedStar Health Research Institute
Hyattsville, Maryland, United States
Massachusetts General Hospital
Boston, Massachusetts, United States
University of Michigan
Ann Arbor, Michigan, United States
International Diabetes Center
Minneapolis, Minnesota, United States
University of Minnesota
Minneapolis, Minnesota, United States
Washington University School of Medicine
St Louis, Missouri, United States
University of Nebraska
Omaha, Nebraska, United States
University of New Mexico School of Medicine
Albuquerque, New Mexico, United States
State University of New York (SUNY)-Downstate Medical Center
Brooklyn, New York, United States
Columbia University Naomi Berrie Diabetes Center
New York, New York, United States
Mount Sinai St. Luke's Hospital
New York, New York, United States
Albert Einstein College of Medicine
The Bronx, New York, United States
Duke University Medical Center
Durham, North Carolina, United States
University of North Carolina Diabetes Care Center
Durham, North Carolina, United States
University of Cincinnati
Cincinnati, Ohio, United States
Case Western Reserve University School of Medicine
Cleveland, Ohio, United States
Kaiser Permanente Northwest
Portland, Oregon, United States
Oregon Health and Science University
Portland, Oregon, United States
Vanderbilt University Medical Center
Nashville, Tennessee, United States
Baylor Endocrine Center
Dallas, Texas, United States
University of Texas-Southwestern Medical Center
Dallas, Texas, United States
Baylor College of Medicine
Houston, Texas, United States
University of Texas Health Science Center
San Antonio, Texas, United States
Seattle Institute for Biomedical and Clinical Research
Seattle, Washington, United States
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
Luchsinger JA, Rosin SP, Kazemi EJ, Younes N, Suratt CE, Fattaleh BN, Florez HJ, Gonzalez JS, Hollander P, Hox SH, Kuo S, Lee MS, Martens T, Pop-Busui R, Seaquist ER, Waltje AH, Barzilay JI; GRADE Research Group. Glucose-Lowering Medications, Glycemia, and Cognitive Outcomes: The GRADE Randomized Clinical Trial. JAMA Intern Med. 2025 Jul 1;185(7):778-787. doi: 10.1001/jamainternmed.2025.1189.
Natale P, Green SC, Tunnicliffe DJ, Pellegrino G, Toyama T, Strippoli GF. Glucagon-like peptide 1 (GLP-1) receptor agonists for people with chronic kidney disease and diabetes. Cochrane Database Syst Rev. 2025 Feb 18;2(2):CD015849. doi: 10.1002/14651858.CD015849.pub2.
Ehrmann D, Krause-Steinrauf H, Uschner D, Wen H, Hoogendoorn CJ, Crespo-Ramos G, Presley C, Arends VL, Cohen RM, Garvey WT, Martens T, Willis HJ, Cherrington A, Gonzalez JS; GRADE Research Group. Differential associations of somatic and cognitive-affective symptoms of depression with inflammation and insulin resistance: cross-sectional and longitudinal results from the Emotional Distress Sub-Study of the GRADE study. Diabetologia. 2025 Jul;68(7):1403-1415. doi: 10.1007/s00125-025-06369-8. Epub 2025 Feb 14.
Seaquist ER, Phillips LS, Ghosh A, Baker C, Bergenstal RM, Crandall JP, Goland RS, Gramzinski MR, Hox SH, Hsia DS, Johnson ML, Lachin JM, Raskin P, Valencia WM, Waltje AH, Younes N; GRADE Research Group. Glycemia reduction in type 2 diabetes-Hypoglycemia outcomes: A randomized clinical trial. PLoS One. 2024 Nov 15;19(11):e0309907. doi: 10.1371/journal.pone.0309907. eCollection 2024.
El-Damanawi R, Stanley IK, Staatz C, Pascoe EM, Craig JC, Johnson DW, Mallett AJ, Hawley CM, Milanzi E, Hiemstra TF, Viecelli AK. Metformin for preventing the progression of chronic kidney disease. Cochrane Database Syst Rev. 2024 Jun 4;6(6):CD013414. doi: 10.1002/14651858.CD013414.pub2.
Hsia DS, Younes N, Krause-Steinrauf H, Kassem LS; GRADE Research Group. The incidence of retinopathy in the Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness study (GRADE). J Diabetes Complications. 2024 Mar;38(3):108692. doi: 10.1016/j.jdiacomp.2024.108692. Epub 2024 Feb 5.
Green JB, Everett BM, Ghosh A, Younes N, Krause-Steinrauf H, Barzilay J, Desouza C, Inzucchi SE, Pokharel Y, Schade D, Scrymgeour A, Tan MH, Utzschneider KM, Mudaliar S; GRADE Study Research Group. Cardiovascular Outcomes in GRADE (Glycemia Reduction Approaches in Type 2 Diabetes: A Comparative Effectiveness Study). Circulation. 2024 Mar 26;149(13):993-1003. doi: 10.1161/CIRCULATIONAHA.123.066604. Epub 2024 Feb 12.
Hampe CS, Shojaie A, Brooks-Worrell B, Dibay S, Utzschneider K, Kahn SE, Larkin ME, Johnson ML, Younes N, Rasouli N, Desouza C, Cohen RM, Park JY, Florez HJ, Valencia WM, Stempel R, Palmer JP, Balasubramanyam A. GAD65Abs Are Not Associated With Beta-Cell Dysfunction in Patients With T2D in the GRADE Study. J Endocr Soc. 2024 Feb 8;8(3):bvad179. doi: 10.1210/jendso/bvad179. eCollection 2024 Jan 16.
Luchsinger JA, Kazemi EJ, Sanchez DL, Larkin ME, Valencia WM, Desouza C, Carlson AL, Pop-Busui R, Seaquist ER, Florez HJ, Barzilay J; GRADE Research Group. BMI, insulin sensitivity, and cognition in early type 2 diabetes: The Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness Study. Obesity (Silver Spring). 2023 Jul;31(7):1812-1824. doi: 10.1002/oby.23785.
Wexler DJ, de Boer IH, Ghosh A, Younes N, Bebu I, Inzucchi SE, McGill JB, Mudaliar S, Schade D, Steffes MW, Tamborlane WV, Tan MH, Ismail-Beigi F; GRADE Research Group. Comparative Effects of Glucose-Lowering Medications on Kidney Outcomes in Type 2 Diabetes: The GRADE Randomized Clinical Trial. JAMA Intern Med. 2023 Jul 1;183(7):705-714. doi: 10.1001/jamainternmed.2023.1487.
Gulanski BI, Butera NM, Krause-Steinrauf H, Lichtman JH, Harindhanavudhi T, Green JB, Suratt CE, AbouAssi H, Desouza C, Ahmann AJ, Wexler DJ, Aroda VR; GRADE Research Group. Higher burden of cardiometabolic and socioeconomic risk factors in women with type 2 diabetes: an analysis of the Glycemic Reduction Approaches in Diabetes (GRADE) baseline cohort. BMJ Open Diabetes Res Care. 2023 Apr;11(2):e003159. doi: 10.1136/bmjdrc-2022-003159.
GRADE Study Research Group; Nathan DM, Lachin JM, Bebu I, Burch HB, Buse JB, Cherrington AL, Fortmann SP, Green JB, Kahn SE, Kirkman MS, Krause-Steinrauf H, Larkin ME, Phillips LS, Pop-Busui R, Steffes M, Tiktin M, Tripputi M, Wexler DJ, Younes N. Glycemia Reduction in Type 2 Diabetes - Microvascular and Cardiovascular Outcomes. N Engl J Med. 2022 Sep 22;387(12):1075-1088. doi: 10.1056/NEJMoa2200436.
GRADE Study Research Group; Nathan DM, Lachin JM, Balasubramanyam A, Burch HB, Buse JB, Butera NM, Cohen RM, Crandall JP, Kahn SE, Krause-Steinrauf H, Larkin ME, Rasouli N, Tiktin M, Wexler DJ, Younes N. Glycemia Reduction in Type 2 Diabetes - Glycemic Outcomes. N Engl J Med. 2022 Sep 22;387(12):1063-1074. doi: 10.1056/NEJMoa2200433.
Barzilay JI, Ghosh A, Busui RP, Ahmann A, Balasubramanyam A, Banerji MA, Cohen RM, Green J, Ismail-Beigi F, Martin CL, Seaquist E, Luchsinger JA; GRADE Research Group. The cross-sectional association of cognition with diabetic peripheral and autonomic neuropathy-The GRADE study. J Diabetes Complications. 2021 Dec;35(12):108047. doi: 10.1016/j.jdiacomp.2021.108047. Epub 2021 Sep 15.
Utzschneider KM, Younes N, Rasouli N, Barzilay JI, Banerji MA, Cohen RM, Gonzalez EV, Ismail-Beigi F, Mather KJ, Raskin P, Wexler DJ, Lachin JM, Kahn SE; GRADE Research Group. Shape of the OGTT glucose response curve: relationship with beta-cell function and differences by sex, race, and BMI in adults with early type 2 diabetes treated with metformin. BMJ Open Diabetes Res Care. 2021 Sep;9(1):e002264. doi: 10.1136/bmjdrc-2021-002264.
Luchsinger JA, Younes N, Manly JJ, Barzilay J, Valencia W, Larkin ME, Falck-Ytter C, Krause-Steinrauf H, Pop-Busui R, Florez H, Seaquist E; GRADE Research Group; GRADE Research Group Investigators:. Association of Glycemia, Lipids, and Blood Pressure With Cognitive Performance in People With Type 2 Diabetes in the Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness Study (GRADE). Diabetes Care. 2021 Oct;44(10):2286-2292. doi: 10.2337/dc20-2858. Epub 2021 Jul 20.
Cherrington AL, Krause-Steinrauf H, Bebu I, Naik AD, Walker E, Golden SH, Gonzalez JS; GRADE Research Group. Study of emotional distress in a comparative effectiveness trial of diabetes treatments: Rationale and design. Contemp Clin Trials. 2021 Aug;107:106366. doi: 10.1016/j.cct.2021.106366. Epub 2021 Mar 22.
Utzschneider KM, Younes N, Rasouli N, Barzilay J, Banerji MA, Cohen RM, Gonzalez EV, Mather KJ, Ismail-Beigi F, Raskin P, Wexler DJ, Lachin JM, Kahn SE; GRADE Research Group. Association of glycemia with insulin sensitivity and beta-cell function in adults with early type 2 diabetes on metformin alone. J Diabetes Complications. 2021 May;35(5):107912. doi: 10.1016/j.jdiacomp.2021.107912. Epub 2021 Mar 17.
Rasouli N, Younes N, Utzschneider KM, Inzucchi SE, Balasubramanyam A, Cherrington AL, Ismail-Beigi F, Cohen RM, Olson DE, DeFronzo RA, Herman WH, Lachin JM, Kahn SE; GRADE Research Group. Association of Baseline Characteristics With Insulin Sensitivity and beta-Cell Function in the Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness (GRADE) Study Cohort. Diabetes Care. 2021 Feb;44(2):340-349. doi: 10.2337/dc20-1787. Epub 2020 Dec 17.
Sivitz WI, Phillips LS, Wexler DJ, Fortmann SP, Camp AW, Tiktin M, Perez M, Craig J, Hollander PA, Cherrington A, Aroda VR, Tan MH, Krakoff J, Rasouli N, Butera NM, Younes N; GRADE Research Group. Optimization of Metformin in the GRADE Cohort: Effect on Glycemia and Body Weight. Diabetes Care. 2020 May;43(5):940-947. doi: 10.2337/dc19-1769. Epub 2020 Mar 5.
Wexler DJ, Krause-Steinrauf H, Crandall JP, Florez HJ, Hox SH, Kuhn A, Sood A, Underkofler C, Aroda VR; GRADE Research Group. Baseline Characteristics of Randomized Participants in the Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness Study (GRADE). Diabetes Care. 2019 Nov;42(11):2098-2107. doi: 10.2337/dc19-0901. Epub 2019 Aug 7.
Behringer-Massera S, Browne T, George G, Duran S, Cherrington A, McKee MD; GRADE Research Group. Facilitators and barriers to successful recruitment into a large comparative effectiveness trial: a qualitative study. J Comp Eff Res. 2019 Jul;8(10):815-826. doi: 10.2217/cer-2019-0010. Epub 2019 Aug 1.
Provided Documents
Download supplemental materials such as informed consent forms, study protocols, or participant manuals.
Document Type: Study Protocol
Document Type: Statistical Analysis Plan: GRADE Study
Document Type: Statistical Analysis Plan: Manuscript - Long Term Differences in Metabolic Status (OP1)
Document Type: Statistical Analysis Plan: Manuscript - Microvascular and Cardiovascular Outcomes (OP2)
Document Type: Informed Consent Form
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
GRADE
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.