ClinicalTrials.gov record
A Study Evaluating the Persistency of Response With or Without Xolair (Omalizumab) After Long-term Therapy
ClinicalTrials.gov ID: NCT01125748
Public ClinicalTrials.gov record NCT01125748. 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.
ClinicalTrials.gov public records Last synced May 15, 2026, 2:51 PM EDT
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 IV, Multicenter, Randomized, Double-blind, Placebo-controlled Study Evaluating the Persistency of Response With or Without Xolair After Long-term Therapy (XPORT)
Study identification
- NCT ID
- NCT01125748
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Lead sponsor
- Genentech, Inc.
- Industry
- Enrollment
- 176 participants
Conditions and interventions
Conditions
Interventions
- Asthma therapies Drug
- Omalizumab Drug
- Placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 17 Years to 70 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
- Apr 30, 2010
- Primary completion
- Jul 31, 2013
- Completion
- Jul 31, 2013
- Last update posted
- Oct 14, 2014
2010 – 2013
United States locations
- U.S. sites
- 100
- U.S. states
- 31
- U.S. cities
- 90
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Huntsville | Alabama | 35801 | — |
| Not listed | Little Rock | Arkansas | 72205 | — |
| Not listed | Bakersfield | California | 93301 | — |
| Not listed | Fresno | California | 93720 | — |
| Not listed | Fresno | California | 93726 | — |
| Not listed | Granada Hills | California | 91344 | — |
| Not listed | Los Angeles | California | 90025 | — |
| Not listed | Los Angeles | California | 90064 | — |
| Not listed | Napa | California | 94558 | — |
| Not listed | Redwood City | California | 94063 | — |
| Not listed | Sacramento | California | 95819 | — |
| Not listed | San Francisco | California | 94104 | — |
| Not listed | San Mateo | California | 94401 | — |
| Not listed | Studio City | California | 91607 | — |
| Not listed | Walnut Creek | California | 94598 | — |
| Not listed | Centennial | Colorado | 80112 | — |
| Not listed | Thornton | Colorado | 80233 | — |
| Not listed | Waterbury | Connecticut | 06708 | — |
| Not listed | Bay Pines | Florida | 33744 | — |
| Not listed | Clearwater | Florida | 33765 | — |
| Not listed | Loxahatchee Groves | Florida | 33470 | — |
| Not listed | Ocala | Florida | 34471 | — |
| Not listed | Pensacola | Florida | 32503 | — |
| Not listed | Tampa | Florida | 33613 | — |
| Not listed | West Palm Beach | Florida | 33401 | — |
| Not listed | Albany | Georgia | 31707 | — |
| Not listed | Columbus | Georgia | 31904 | — |
| Not listed | Gainesville | Georgia | 30501 | — |
| Not listed | Chicago | Illinois | 60612 | — |
| Not listed | Glen Carbon | Illinois | 62034 | — |
| Not listed | Park Ridge | Illinois | 60068 | — |
| Not listed | Fort Wayne | Indiana | 46804 | — |
| Not listed | Fort Wayne | Indiana | 46815 | — |
| Not listed | Overland Park | Kansas | 66210 | — |
| Not listed | Topeka | Kansas | 66606 | — |
| Not listed | Lexington | Kentucky | 40513 | — |
| Not listed | Mandeville | Louisiana | 70471 | — |
| Not listed | Metairie | Louisiana | 70002 | — |
| Not listed | Baltimore | Maryland | 21236 | — |
| Not listed | Ellicott City | Maryland | 21042 | — |
| Not listed | Gaithersburg | Maryland | 20878 | — |
| Not listed | Boston | Massachusetts | 02114 | — |
| Not listed | Gardner | Massachusetts | 01440 | — |
| Not listed | North Dartmouth | Massachusetts | 02747 | — |
| Not listed | Taunton | Massachusetts | 02780 | — |
| Not listed | Liberty | Missouri | 64068 | — |
| Not listed | Sasint Louis | Missouri | 63104 | — |
| Not listed | Springfield | Missouri | 65807 | — |
| Not listed | St Louis | Missouri | 63110 | — |
| Not listed | St Louis | Missouri | 63141 | — |
| Not listed | Bellevue | Nebraska | 68123 | — |
| Not listed | Omaha | Nebraska | 68130 | — |
| Not listed | Cranford | New Jersey | 07016 | — |
| Not listed | Edison | New Jersey | 08820 | — |
| Not listed | Hillsborough | New Jersey | 08844 | — |
| Not listed | Verona | New Jersey | 07044 | — |
| Not listed | Albany | New York | 12205 | — |
| Not listed | Middletown | New York | 10940 | — |
| Not listed | Mineola | New York | 11501 | — |
| Not listed | Mount Vernon | New York | 10552 | — |
| Not listed | New Paltz | New York | 12561 | — |
| Not listed | New York | New York | 10022 | — |
| Not listed | Newburgh | New York | 12550 | — |
| Not listed | Olean | New York | 14760 | — |
| Not listed | Rockville Centre | New York | 11570 | — |
| Not listed | Staten Island | New York | 10304 | — |
| Not listed | The Bronx | New York | 10423 | — |
| Not listed | The Bronx | New York | 10461 | — |
| Not listed | The Bronx | New York | 10465 | — |
| Not listed | Asheville | North Carolina | 28801 | — |
| Not listed | High Point | North Carolina | 27262 | — |
| Not listed | Fargo | North Dakota | 58103 | — |
| Not listed | Fargo | North Dakota | 58104 | — |
| Not listed | Beavercreek | Ohio | 45434 | — |
| Not listed | Centerville | Ohio | 45458 | — |
| Not listed | Oklahoma City | Oklahoma | 73112 | — |
| Not listed | Tulsa | Oklahoma | 74133 | — |
| Not listed | Altoona | Pennsylvania | 16601 | — |
| Not listed | Beaver | Pennsylvania | 15009 | — |
| Not listed | Carlisle | Pennsylvania | 17013 | — |
| Not listed | Harrisburg | Pennsylvania | 17110 | — |
| Not listed | Pittsburgh | Pennsylvania | 15213 | — |
| Not listed | Pittsburgh | Pennsylvania | 15221 | — |
| Not listed | Upland | Pennsylvania | 19013 | — |
| Not listed | Lincoln | Rhode Island | 02865 | — |
| Not listed | Greenville | South Carolina | 29607 | — |
| Not listed | Knoxville | Tennessee | 37909 | — |
| Not listed | Dallas | Texas | 75230 | — |
| Not listed | Dallas | Texas | 75231 | — |
| Not listed | El Paso | Texas | 79925 | — |
| Not listed | Garland | Texas | 75044 | — |
| Not listed | Heath | Texas | 75032 | — |
| Not listed | Round Rock | Texas | 78681 | — |
| Not listed | San Antonio | Texas | 78233 | — |
| Not listed | San Antonio | Texas | 78251 | — |
| Not listed | Richmond | Virginia | 23298 | — |
| Not listed | Spokane | Washington | 99204 | — |
| Not listed | Tacoma | Washington | 98405 | — |
| Not listed | Wheeling | West Virginia | 26003 | — |
| Not listed | Madison | Wisconsin | 53715 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01125748, 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 Oct 14, 2014 · Synced May 15, 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 NCT01125748 live on ClinicalTrials.gov.