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ClinicalTrials.gov record
Completed Phase 2Phase 3 Interventional Results available

Efficacy and Safety of PT001 to Placebo and Open-label Spiriva® Respimat® in Subjects With Persistant Asthma

ClinicalTrials.gov ID: NCT03358147

Public ClinicalTrials.gov record NCT03358147. 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 Oct 19, 2026, 1:31 AM 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 Randomized, Double-Blind, Parallel Group, Multi-Center 24-Week Study Comparing the Efficacy and Safety of Three Doses of PT001 to Placebo and Open-label Spiriva® Respimat® in Subjects With Persistent Asthma

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Study Comparing the Efficacy and Safety of PT001 to Placebo and Open-label Spiriva® Respimat® in Subjects With Persistent Asthma

Study identification

NCT ID
NCT03358147
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2, Phase 3
Lead sponsor
Pearl Therapeutics, Inc.
Industry
Enrollment
1,077 participants

Conditions and interventions

Eligibility (public fields only)

Age range
12 Years to 80 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
Dec 13, 2017 (Actual)
Primary completion
Sep 12, 2019 (Actual)
Completion
Sep 12, 2019 (Actual)
Last update posted
Aug 12, 2020

2017 – 2019

United States locations

U.S. sites
232
U.S. states
41
U.S. cities
191
Facility City State ZIP Site status
Research Site Birmingham Alabama 35209 —
Research Site Birmingham Alabama 35243 —
Research Site Dothan Alabama 36303 —
Research Site Guntersville Alabama 35976 —
Research Site Jasper Alabama 35501 —
Research Site Scottsboro Alabama 35768 —
Research Site Chandler Arizona 85224 —
Research Site Flagstaff Arizona 86001 —
Research Site Phoenix Arizona 85018 —
Research Site Tempe Arizona 85283 —
Research Site Tucson Arizona 85710 —
Research Site Tucson Arizona 85745 —
Research Site Little Rock Arkansas 72205 —
Research Site Little Rock Arkansas 72209 —
Research Site Little Rock Arkansas 72212 —
Research Site Anaheim California 92801 —
Research Site Bakersfield California 93301 —
Research Site Corona California 92879 —
Research Site Costa Mesa California 92627 —
Research Site El Cajon California 92020 —
Research Site Encinitas California 92024 —
Research Site Fresno California 93702 —
Research Site Fullerton California 92835 —
Research Site Gold River California 95670 —
Research Site Huntington Beach California 92647 —
Research Site Long Beach California 90036 —
Research Site Long Beach California 90806 —
Research Site Los Angeles California 90017 —
Research Site Los Angeles California 90048 —
Research Site Mission Viejo California 92691 —
Research Site Newport Beach California 92663 —
Research Site North Hollywood California 91606 —
Research Site Northridge California 91324 —
Research Site Orange California 92868 —
Research Site Palmdale California 93551 —
Research Site Poway California 92064 —
Research Site Quartz Hill California 93536 —
Research Site Rancho Mirage California 92270 —
Research Site Riverside California 92506 —
Research Site Rolling Hills Estates California 90274 —
Research Site Sacramento California 95821 —
Research Site Sacramento California 95823 —
Research Site Sacramento California 95831 —
Research Site San Diego California 92117 —
Research Site San Diego California 92119 —
Research Site San Diego California 92120 —
Research Site San Diego California 92123 —
Research Site San Jose California 95117 —
Research Site Stockton California 95207 —
Research Site Thousand Oaks California 91360 —
Research Site Tustin California 92780 —
Research Site Westminster California 92683 —
Research Site Centennial Colorado 80112 —
Research Site Colorado Springs Colorado 80907 —
Research Site Colorado Springs Colorado 80910 —
Research Site Lafayette Colorado 80026 —
Research Site Wheat Ridge Colorado 80033 —
Research Site Hamden Connecticut 06517 —
Research Site Aventura Florida 33180 —
Research Site Brandon Florida 33511 —
Research Site Clearwater Florida 33756 —
Research Site Clearwater Florida 33765 —
Research Site Gainesville Florida 32653 —
Research Site Hialeah Florida 33012 —
Research Site Hialeah Florida 33013 —
Research Site Hialeah Florida 33016 —
Research Site Kissimmee Florida 34741 —
Research Site Lake City Florida 32055 —
Research Site Loxahatchee Groves Florida 33470 —
Research Site Miami Florida 33126 —
Research Site Miami Florida 33174 —
Research Site Miami Florida 33175 —
Research Site Miami Florida 33176 —
Research Site Miami Florida 33186 —
Research Site Ocala Florida 34471 —
Research Site Ocoee Florida 34761 —
Research Site Orlando Florida 32811 —
Research Site Panama City Florida 32405 —
Research Site Pembroke Pines Florida 33029 —
Research Site Saint Cloud Florida 34769 —
Research Site Tallahassee Florida 32308 —
Research Site Tampa Florida 33603 —
Research Site Winter Park Florida 32789 —
Research Site Adairsville Georgia 30103 —
Research Site Albany Georgia 31707 —
Research Site Atlanta Georgia 30345 —
Research Site Columbus Georgia 31904 —
Research Site Dacula Georgia 30019 —
Research Site Gainesville Georgia 30501 —
Research Site Lawrenceville Georgia 30046 —
Research Site Norcross Georgia 30071 —
Research Site Rincon Georgia 31326 —
Research Site Savannah Georgia 31406 —
Research Site Stockbridge Georgia 30281 —
Research Site Boise Idaho 83706 —
Research Site Meridian Idaho 83646 —
Research Site Evergreen Park Illinois 60805 —
Research Site O'Fallon Illinois 62269 —
Research Site River Forest Illinois 60305 —
Research Site Brownsburg Indiana 46112 —
Research Site Michigan City Indiana 46360 —
Research Site Fort Mitchell Kentucky 41017 —
Research Site Crowley Louisiana 70526 —
Research Site Shreveport Louisiana 71106 —
Research Site Zachary Louisiana 70791 —
Research Site Bangor Maine 04401 —
Research Site Chevy Chase Maryland 20815 —
Research Site White Marsh Maryland 21162 —
Research Site Fall River Massachusetts 02721 —
Research Site North Dartmouth Massachusetts 02747 —
Research Site Ann Arbor Michigan 48106 —
Research Site Farmington Hills Michigan 48336 —
Research Site Rochester Michigan 48307 —
Research Site Troy Michigan 48085 —
Research Site Edina Minnesota 55435 —
Research Site Fridley Minnesota 55432 —
Research Site Minneapolis Minnesota 55402 —
Research Site Minneapolis Minnesota 55407 —
Research Site Woodbury Minnesota 55125 —
Research Site Chesterfield Missouri 63017 —
Research Site Columbia Missouri 65203 —
Research Site Saint Charles Missouri 63301 —
Research Site St Louis Missouri 63141 —
Research Site Bellevue Nebraska 68005 —
Research Site Bellevue Nebraska 68123 —
Research Site Lincoln Nebraska 68505 —
Research Site Omaha Nebraska 68114 —
Research Site Las Vegas Nevada 89106 —
Research Site Las Vegas Nevada 89119 —
Research Site Las Vegas Nevada 89146 —
Research Site Reno Nevada 89503 —
Research Site Berlin New Jersey 08009 —
Research Site Ocean City New Jersey 07712 —
Research Site Skillman New Jersey 08558 —
Research Site Toms River New Jersey 08755 —
Research Site Albuquerque New Mexico 87108 —
Research Site Albuquerque New Mexico 87109 —
Research Site Cortland New York 13045 —
Research Site New York New York 10016 —
Research Site The Bronx New York 10455 —
Research Site The Bronx New York 10468 —
Research Site Watertown New York 13601 —
Research Site Burlington North Carolina 27215 —
Research Site Charlotte North Carolina 28207 —
Research Site Charlotte North Carolina 28277 —
Research Site Elizabeth City North Carolina 27909 —
Research Site Gastonia North Carolina 28054 —
Research Site Greensboro North Carolina 27408 —
Research Site Hickory North Carolina 28078 —
Research Site Huntersville North Carolina 28078 —
Research Site Monroe North Carolina 28112 —
Research Site Mooresville North Carolina 28117 —
Research Site New Bern North Carolina 28562 —
Research Site Raleigh North Carolina 27612 —
Research Site Winston-Salem North Carolina 27103 —
Research Site Fargo North Dakota 58103 —
Research Site Fargo North Dakota 58104 —
Research Site Cincinnati Ohio 45219 —
Research Site Cincinnati Ohio 45231 —
Research Site Cincinnati Ohio 45242 —
Research Site Columbus Ohio 43207 —
Research Site Dayton Ohio 45419 —
Research Site Dayton Ohio 45459 —
Research Site Dublin Ohio 43016 —
Research Site Marion Ohio 43302 —
Research Site Wooster Ohio 44691 —
Research Site Edmond Oklahoma 73034 —
Research Site Oklahoma City Oklahoma 73131 —
Research Site Tulsa Oklahoma 74136 —
Research Site Clackamas Oregon 97015-5737 —
Research Site Medford Oregon 97504 —
Research Site Portland Oregon 97202 —
Research Site Monroeville Pennsylvania 15665 —
Research Site Pittsburgh Pennsylvania 15236 —
Research Site Pittsburgh Pennsylvania 15241 —
Research Site Wyomissing Pennsylvania 19610 —
Research Site East Providence Rhode Island 02914 —
Research Site Warwick Rhode Island 02886 —
Research Site Anderson South Carolina 29621 —
Research Site Charleston South Carolina 29406 —
Research Site Gaffney South Carolina 29340 —
Research Site Gaffney South Carolina 29341 —
Research Site Greenville South Carolina 29615 —
Research Site Hodges South Carolina 29653 —
Research Site Mt. Pleasant South Carolina 29464 —
Research Site Myrtle Beach South Carolina 29588 —
Research Site Rock Hill South Carolina 29732 —
Research Site Spartanburg South Carolina 29301 —
Research Site Spartanburg South Carolina 29303 —
Research Site Union South Carolina 29379 —
Research Site Rapid City South Dakota 57702 —
Research Site Franklin Tennessee 37067 —
Research Site Hendersonville Tennessee 37075 —
Research Site Johnson City Tennessee 37601 —
Research Site Smyrna Tennessee 37167 —
Research Site Amarillo Texas 79106 —
Research Site Austin Texas 78759 —
Research Site Boerne Texas 78006 —
Research Site Carrollton Texas 75007 —
Research Site Dallas Texas 75231 —
Research Site Dallas Texas 75235 —
Research Site El Paso Texas 79903 —
Research Site Houston Texas 77058 —
Research Site Houston Texas 77074 —
Research Site Houston Texas 77099 —
Research Site Kerrville Texas 78028 —
Research Site Killeen Texas 76542 —
Research Site Lampasas Texas 76550 —
Research Site Live Oak Texas 78233 —
Research Site Lufkin Texas 75904 —
Research Site Pearland Texas 77584 —
Research Site Plano Texas 75093 —
Research Site San Antonio Texas 78205 —
Research Site San Antonio Texas 78215 —
Research Site San Antonio Texas 78229 —
Research Site San Antonio Texas 78258 —
Research Site Sherman Texas 75092 —
Research Site Tomball Texas 77375 —
Research Site Waco Texas 76712 —
Research Site Murray Utah 84107 —
Research Site Salt Lake City Utah 84102 —
Research Site Salt Lake City Utah 84107 —
Research Site South Burlington Vermont 05403 —
Research Site Abingdon Virginia 24210 —
Research Site Newport News Virginia 23606 —
Research Site Richmond Virginia 23114 —
Research Site Richmond Virginia 23226 —
Research Site Bellingham Washington 98225 —
Research Site Spokane Valley Washington 99216 —
Research Site Tacoma Washington 98405 —
Research Site Morgantown West Virginia 26505 —
Research Site Greenfield Wisconsin 53228 —

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 NCT03358147, 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 Aug 12, 2020 · Synced Oct 19, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03358147 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →