A Phase 3 Study of Ranolazine in Subjects With Type 2 Diabetes Who Are Inadequately Controlled on Metformin Alone
Public ClinicalTrials.gov record NCT01555164. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 3, Randomized, Double-blind, Placebo-controlled, Parallel Group Study to Evaluate the Efficacy and Safety of Ranolazine When Added to Metformin in Subjects With Type 2 Diabetes Mellitus
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a randomized, double-blind, placebo-controlled, parallel-group, multicenter study to determine the effect of ranolazine when added to metformin on glycemic control in adults with type 2 diabetes mellitus (T2DM) who are inadequately controlled despite current treatment with stable metformin therapy in addition to diet and exercise.
Study identification
- NCT ID
- NCT01555164
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 442 participants
Conditions and interventions
Conditions
Interventions
- Ranolazine Drug
- Placebo to match ranolazine Drug
- Metformin Drug
- Placebo to match metformin Drug
- Diet Behavioral
- Exercise Behavioral
Drug · Behavioral
Eligibility (public fields only)
- Age range
- 18 Years to 75 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 2012 (Type not available)
- Primary completion
- Sep 2013 (Actual)
- Completion
- Oct 2013 (Actual)
- Last update posted
- Sep 23, 2014
2012 – 2013
United States locations
- U.S. sites
- 60
- U.S. states
- 24
- U.S. cities
- 56
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Fundamental Research LLC | Gulf Shores | Alabama | 36542 | — |
| KLR Business Group DBA Arkansas Clinical Research | Little Rock | Alaska | 72205 | — |
| Radiant Research, Inc. | Chandler | Arizona | 85224 | — |
| Central Phoenix Medical Clinic | Phoenix | Arizona | 85020 | — |
| Clinical Research Advantage | Tempe | Arizona | 85282 | — |
| Desert Sun Clinical Research, LLC | Tucson | Arizona | 85710 | — |
| National Research Institute | Los Angeles | California | 90057 | — |
| Ritchken and First MD's | San Diego | California | 92117 | — |
| Clearview Medical Research, LLC | Santa Clarita | California | 91350 | — |
| Metabolic Institute of America | Tarzana | California | 91356 | — |
| University Clinical Investigators | Tustin | California | 92780 | — |
| Infosphere Clinical Research | West Hills | California | 91307 | — |
| Colorado Springs Health Partners | Colorado Springs | Colorado | 80906 | — |
| Boca Raton Clinical Research Associates, Inc. | Boca Raton | Florida | 33432 | — |
| MD Clinical Institute | Hallandale | Florida | 33009 | — |
| A G A Clinical Trials | Hialeah | Florida | 33012 | — |
| Baptist Diabetes Associates | Miami | Florida | 33156 | — |
| Florida Institute for Clinical Research LLC | Orlando | Florida | 32822 | — |
| Medical Research Group of Central Florida | Sanford | Florida | 32771 | — |
| Synergy Therapeutic Partners | Atlanta | Georgia | 30312 | — |
| Perimeter Institute for Clinical Research | Atlanta | Georgia | 30338 | — |
| Columbus Research Foundation | Columbus | Georgia | 31904 | — |
| Advanced Clinical Research | Boise | Idaho | 83642 | — |
| Choose To Lose | Eagle | Idaho | 83616 | — |
| Cedar-Crosse Research Center | Chicago | Illinois | 60607 | — |
| Alexandria Cardiology Clinic | Alexandria | Louisiana | 71301 | — |
| Covington Medical Care | Mandeville | Louisiana | 70471 | — |
| Clinical Trials Management, LLC | Metairie | Louisiana | 70006 | — |
| MD Medical Research | Oxon Hill | Maryland | 20745 | — |
| Bellevue Family Practice | Bellevue | Nebraska | 68005 | — |
| Clinical Research Advantage | Henderson | Nevada | 89052 | — |
| Albuquerque Clinical Trials, Inc. | Albuquerque | New Mexico | 87102 | — |
| University of New Mexico Health Sciences Center | Albuquerque | New Mexico | 87131-0001 | — |
| PhysiqueMed Clinical Trials | Greensboro | North Carolina | 27405 | — |
| Clinical Trials of America Inc | Hickory | North Carolina | 28601 | — |
| University Medical Associates | Huntersville | North Carolina | 28078 | — |
| Northstate Clinical Research | Lenoir | North Carolina | 28645 | — |
| Carolina Research Center | Shelby | North Carolina | 28150 | — |
| Lillestol Research | Fargo | North Dakota | 58103 | — |
| Rapid Medical Research, Inc | Cleveland | Ohio | 44122 | — |
| Columbus Clinical Research Inc. | Columbus | Ohio | 43213 | — |
| Hometown Urgent Care and Research | Dayton | Ohio | 45432 | — |
| Blair Medical Associates Inc. | Altoona | Pennsylvania | 16602 | — |
| Safe Harbor Clinical Research | East Providence | Rhode Island | 02914 | — |
| Pharmacorp Clinical Trials, Inc. | Charleston | South Carolina | 29412 | — |
| DeGarmo Institute of Medical Research | Greer | South Carolina | 29651 | — |
| Holston Medical Group, P.C. | Bristol | Tennessee | 37620 | — |
| New Phase Research & Development | Knoxville | Tennessee | 37923 | — |
| Not listed | Corpus Christi | Texas | 78414 | — |
| Dallas Diabetes and Endocrine Center | Dallas | Texas | 75230 | — |
| West Houston Clinical Research | Houston | Texas | 77055 | — |
| Juno Research, LLC | Houston | Texas | 77074 | — |
| Texas Center for Drug Development, Inc. | Houston | Texas | 77081 | — |
| Juno Research, LLC | Katy | Texas | 77450 | — |
| Northeast Clinical Research of San Antonio, LLC | Schertz | Texas | 78154 | — |
| Not listed | Sugarland | Texas | 77479 | — |
| Progressive Clinical Research, LLC | Bountiful | Utah | 84010 | — |
| Highland Clinical Research | Salt Lake City | Utah | 84124 | — |
| Burke Internal Medicine, Inc. | Burke | Virginia | 22015 | — |
| Manassas Clinical Research Center | Manassas | Virginia | 20110 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 86 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01555164, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 23, 2014 · Synced Oct 31, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT01555164 live on ClinicalTrials.gov.