Obese Patients With or Without Comorbidities (RIO-North America)
Public ClinicalTrials.gov record NCT00029861. 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 Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Fixed-Dose, Multicenter Study of Weight-Reducing and Prevention of Weight Regain Effects and Safety in Obese Patients With or Without Comorbidities
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
To assess the effects of weight loss and weight maintenance over a period of two years when prescribed with a hypocaloric diet in obese patients with or without comorbidities
Study identification
- NCT ID
- NCT00029861
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 3,045 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- 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
- Jul 31, 2001
- Primary completion
- Mar 31, 2004
- Completion
- Mar 31, 2004
- Last update posted
- Apr 19, 2009
2001 – 2004
United States locations
- U.S. sites
- 47
- U.S. states
- 29
- U.S. cities
- 45
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Radiant Research | Birmingham | Alabama | 35209 | — |
| Radiant Research | Phoenix | Arizona | 85013 | — |
| East Bay Clinical Trial Center | Concord | California | 94520 | — |
| Feighner Research Institute | San Diego | California | 92121 | — |
| Scripps Clinic | San Diego | California | 92130 | — |
| Diablo Clinical Research, Inc. | Walnut Creek | California | 94598 | — |
| Ranch View Family Medicine | Highlands Ranch | Colorado | 80130 | — |
| Longmont Medical Research Network | Longmont | Colorado | 80501 | — |
| Health Core, Inc. | Newark | Delaware | 19713 | — |
| George Washington Univ. Wieght Mmgt Program | Washington D.C. | District of Columbia | 20037 | — |
| Miami Research Associates | Miami | Florida | 33173 | — |
| Anchor Research Center | Naples | Florida | 34102 | — |
| Central Florida Clinical Solutions | Ocoee | Florida | 34761 | — |
| Orlando Clinical Research Center | Orlando | Florida | 32806 | — |
| Palm Beach Research Center | West Palm Beach | Florida | 33409 | — |
| Medical Dietetics, Inc. | Atlanta | Georgia | 30339 | — |
| Springfield Diabetes and Endocrine Center | Springfield | Illinois | 62704 | — |
| Medical Research Consortium | Indianapolis | Indiana | 46208 | — |
| Wichita Clinic, PA | Wichita | Kansas | 67208 | — |
| University of KY Internal Medicine | Lexington | Kentucky | 40536-9841 | — |
| Pennington Center | Baton Rouge | Louisiana | 70808 | — |
| JM Clinical Trials, Inc. | Swansea | Massachusetts | 02777 | — |
| Montana Medical Research, LLC | Missoula | Montana | 59804 | — |
| Endocrinology and Diabetes Consultants, PC | Dover | New Hampshire | 03820 | — |
| Radiant Research | Lawrenceville | New Jersey | 08648 | — |
| Lovelace Scientific Resources | Albuquerque | New Mexico | 87108 | — |
| Central New York Clinical Research | Manlius | New York | 13104 | — |
| Comprehensive Weight Control Program | New York | New York | 10021 | — |
| St. Luke's Roosevelt Hospital Center | New York | New York | 10025 | — |
| Center for Nutrition and Preventive Medicine | Charlotte | North Carolina | 28207 | — |
| Multi-Specialty Research Associates of North Carolina | Raleigh | North Carolina | 27609 | — |
| South Dayton Research Associates | Beavercreek | Ohio | 45431 | — |
| Lindner Clinical Trials Center | Cincinnati | Ohio | 45219 | — |
| Radiant Research | Columbus | Ohio | 43212 | — |
| Radiant Research | Portland | Oregon | 97201 | — |
| SFM Clinical Trials | Scotland | Pennsylvania | 17254 | — |
| Radiant Research | Wyomissing | Pennsylvania | 19610 | — |
| ClinSearch | Chattanooga | Tennessee | 37404 | — |
| Clinical Research Associates, Inc | Nashville | Tennessee | 37203 | — |
| Radiant Research | Austin | Texas | 78758 | — |
| Dallas Diabetes and Endocrine Center | Dallas | Texas | 75230 | — |
| nTouch Research | Houston | Texas | 77024 | — |
| Quality Research, Inc. | San Antonio | Texas | 78209 | — |
| Advanced Clinical Research | Salt Lake City | Utah | 84102 | — |
| Commonwealth Clinical Research Specialists (CCRS) | Richmond | Virginia | 23226 | — |
| Rainer Clinical Research Center, Inc. | Renton | Washington | 98055-5704 | — |
| Clinical Nutrition Clinic, University of Wisconsin | Madison | Wisconsin | 53705 | — |
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 4 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00029861, 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 Apr 19, 2009 · Synced Sep 24, 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 protocol, eligibility criteria, and contact information for NCT00029861 live on ClinicalTrials.gov.