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A Study to Examine the Efficacy and Safety of Anti-Fel d 1 Antibodies Injections in Cat-allergic Adolescent and Adult Patients With Allergic Rhinitis Who Live With a Cat

Phase 3
Terminated
Conditions
Allergic Rhinitis Due to Cat Allergy
Interventions
Drug: Matching Placebo
Registration Number
NCT04981717
Lead Sponsor
Regeneron Pharmaceuticals
Brief Summary

The primary objective of the study is to determine the efficacy of REGN1908-1909, as compared to placebo, to reduce allergic rhinitis/conjunctivitis symptoms and allergy rescue medication use during natural cat exposure.

The Secondary Objectives are:

* To assess the reduction of allergic symptoms and use of allergy rescue medications after treatment with REGN1908-1909 versus placebo, as measured by the individual components of the CSMS

* To assess health-related quality of life (HRQoL) as measured by the Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ\[S\])

* To determine the efficacy of REGN1908-1909, as compared to placebo, to inhibit a wheal-and-flare response to a skin prick test with cat allergen

* To assess the durability of effect in allergic rhinitis and conjunctivitis symptom and medication scores after multiple doses of REGN1908-1909 compared to placebo given every 12 weeks (Q12W)

* To determine the efficacy following multiple doses of REGN1908-1909 compared to placebo at inhibiting a wheal-and-flare response to a skin prick test with cat allergen

* To estimate the effect of REGN1908-1909 on lung function, as compared to placebo, in patients with asthma

* To determine the efficacy of REGN1908-1909 as compared to placebo to reduce asthma symptoms in patients with asthma

* To assess whether there is a difference in asthma rescue medication use in patients with asthma who are treated with REGN1908-1909 compared to placebo

* To assess whether there is a difference in nighttime awakenings in patients with asthma treated with REGN1908-1909 compared to placebo

* To evaluate the short-term and long-term safety and tolerability of REGN1908-1909, including the incidence of hypersensitivity reactions, local injection site reactions, and asthma exacerbations

* To determine systemic exposure of total (free and antigen-bound) antibodies as measured by concentration of REGN1908 and REGN1909

* To assess the immunogenicity of REGN1908 and REGN1909

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
446
Inclusion Criteria
  1. Generally healthy males and females who are 12 years and older at the time of screening.

  2. Weight must be ≥40 kg at the time of screening

  3. Documented or patient reported history (for at least 2 years) of symptomatic cat allergen-triggered allergic rhinitis with or without conjunctivitis and with or without asthma as defined by all of the following criteria:

    1. Positive skin prick test (SPT) with cat hair extract (mean wheal diameter at least 5 mm greater than a negative control) at screening
    2. Positive allergen-specific IgE (sIgE) tests for cat and Fel d 1 (both ≥0.7 kUa/L at screening)
    3. Documented or patient reported history of nasal and/or ocular symptoms upon cat exposure
    4. Symptomatic despite the use of medications to treat their nasal and/or ocular symptoms
  4. At least 1 generally healthy cat (that is unlikely to die during the study) living in the home resulting in regular exposure

  5. A daily total rhinitis/conjunctivitis symptom score (total symptom score [TSS]) of at least 8 of 18 during at least 8 days of the 15-day baseline assessment period and use of standard, therapeutic doses of pharmacotherapy for the treatment of allergic rhinoconjunctivitis on at least 8 days of the 15-day baseline assessment period.

Key

Exclusion Criteria
  1. History of significant multiple and/or severe allergies, as assessed by the investigator, that would potentially interfere with the assessments during the baseline and 12-week efficacy assessment periods or confound results, per investigator discretion, including significant rhinitis or sinusitis due to daily contact with other allergens causing symptoms that are expected to coincide with the baseline period or any of the efficacy assessment periods
  2. Received REGN1908-1909 in a prior REGN1908-1909 clinical trial (receipt of placebo in a previous trial is allowed)
  3. Active lung disease other than asthma
  4. FEV1 less than 70% of predicted at screening or randomization
  5. Treatment with an investigational drug within 2 months or within 5 half-lives (if known), whichever is longer, prior to screening
  6. Persistent chronic or recurring acute infection requiring treatment with antibiotics, antivirals, or antifungals, or any untreated respiratory infections within 4 weeks prior to screening. Patients may be re-evaluated after resolution of symptoms and specified time duration

NOTE: Other protocol-defined Inclusion/ Exclusion Criteria apply

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
REGN1908-1909REGN1908-1909Randomized 1:1
PlaceboMatching PlaceboRandomized 1:1
Primary Outcome Measures
NameTimeMethod
Daily Combined Symptom and Medication Score (CSMS) Averaged Over Last 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60

CSMS is calculated by adding the Daily Medication Score (DMS) and Total Symptom Score (TSS) together, with scores ranging between 0 (none) and 38 (severe).

Secondary Outcome Measures
NameTimeMethod
Daily Total Nasal Symptom Score (TNSS) Averaged Over the Last 12 Weeks of Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60

Total nasal symptom score (TNSS) is from 0 to 12 and is based on assessment of 4 nasal symptoms graded on a Likert scale ranging from 0 (none) to 3 (severe) for congestion, itching, and rhinorrhea, and from 0 (none) to 3 (5 or more sneezes) for sneezing.

Percent Change From Pre-treatment Baseline in Average TNSS Over the Last 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60
Daily CSMS Averaged Over the Initial 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

The combined symptom and medication score (CSMS) is defined as the daily combined allergic rhinitis and conjunctivitis total symptom score (TSS: calculated as the sum of total nasal symptom score \[TNSS\] and total ocular symptom score \[TOSS\]) plus daily medication score (DMS). Scores ranging between 0 (none) and 38 (severe).

Percent Change From Pre-treatment Baseline in Average TSS Over the Initial 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

Total symptom score (TSS: calculated as the sum of TNSS and total ocular symptom score \[TOSS\]) plus daily medication score (DMS).

Percent Change From Pre-treatment Baseline in Average TOSS, Over the Initial 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

Total ocular symptom score is 0 to 6 and is based on itching/redness/gritty feeling and tearing/watering; each of the 2 symptoms is graded 0 (absent), 1 (mild), 2 (moderate), and 3 (severe)

Percent Change From Pre-treatment Baseline in Average TOSS Over the Last 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60

Total ocular symptom score is 0 to 6 and is based on itching/redness/gritty feeling and tearing/watering; each of the 2 symptoms is graded 0 (absent), 1 (mild), 2 (moderate), and 3 (severe)

Percent Change From Pre-treatment Baseline in Average CSMS Over the Last 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60
Daily Total Symptom Score (TSS) Averaged Over the Last 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60

TSS is a combined score of TOSS and TNSS. TNSS and TOSS are scored as in part 1 each for a combined TSS of 0 (none) to 18 (severe)

Percent Change From Pre-treatment Baseline in Average TSS Over the Last 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60
Percent Change From Baseline to the End of Treatment in Cat Skin Prick Test (SPT) Mean Wheal Diameter in Patients Who Receive REGN1908-1909 Versus PlaceboWeek 60
Daily TNSS Averaged Over the Initial 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

The TNSS ranges from 0 to 12 and is based on assessment of 4 nasal symptoms graded on a Likert scale ranging from 0 (none) to 3 (severe) for nasal congestion, itching, and runny nose, and sneezing.

Percent Change From Pre-treatment Baseline in Average CSMS Over the Initial 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

The combined symptom and medication score (CSMS) is defined as the daily combined allergic rhinitis and conjunctivitis total symptom score (TSS: calculated as the sum of total nasal symptom score \[TNSS\] and total ocular symptom score \[TOSS\]) plus daily medication score (DMS).

Percent Change From Pre-treatment Baseline in Average TNSS Over the Initial 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

The TNSS ranges from 0 to 12 and is based on assessment of 4 nasal symptoms graded on a Likert scale ranging from 0 (none) to 3 (severe) for nasal congestion, itching, and runny nose, and sneezing.

Daily TSS Score Averaged Over the Initial 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

Total symptom score (TSS: calculated as the sum of TNSS and total ocular symptom score \[TOSS\]) plus daily medication score (DMS).

Change From Baseline to Week 60 in Rhinoconjunctivitis Quality of Life Questionnaire for Ages 12+ (RQLQ(S)+12) in Participants Who Received REGN1908-1909 Versus PlaceboBaseline to week 60

The RQLQ had 25 questions in 6 domains (nose symptoms, eye symptoms, practical problems, activity limitation, non-hay fever symptoms and emotional function). Participants recalled how they have been during the previous week and responded to each question on a 7-point scale. The overall RQLQ score was the mean of all 25 responses and the individual domain scores were the means of the items in those domains. The RQLQ(S) responses are based on a 7-point Likert scale with responses ranging from 0 (not troubled) to 6 (extremely troubled).

Daily TOSS Averaged Over the Last 12 Weeks of the Treatment Period in Patients Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60

Total ocular symptom score is 0 to 6 and is based on itching/redness/gritty feeling and tearing/watering; each of the 2 symptoms is graded 0 (absent), 1 (mild), 2 (moderate), and 3 (severe)

Percent Change in FEV1 in Patients With Asthma Who Receive REGN1908-1909 Versus PlaceboBaseline to week 60

In-clinic spirometry on all patients to determine FEV1 (forced expiratory volume in 1 second) in liters (L).

Number of Participants With Serious Treatment-Emergent Adverse Events (TEAEs) Throughout the StudyWeeks 0 to 60
Number of Participants With Treatment-emergent Adverse Events (TEAEs) Throughout the StudyWeeks 0 to 72
Percent Change in Cat SPT Mean Wheal Diameter in Patients Who Receive REGN1908-1909 Versus Placebo (up to Week 12)Baseline to week 12
Percent Change in Forced Expiratory Volume (FEV)1 in Patients With Asthma Who Receive REGN1908-1909 Versus PlaceboBaseline to week 12

In-clinic spirometry on all patients to determine FEV1 (forced expiratory volume in 1 second) in liters (L).

Percent Change in Cat SPT Mean Wheal Diameter in Patients Who Receive REGN1908-1909 Versus PlaceboBaseline to week 72

The full analysis set (FAS) includes all randomized participants; it is based on the treatment allocated (as randomized). Efficacy endpoints will be analyzed using the FAS.

Number of Participants With Adverse Event of Special Interests (AESIs) Throughout the StudyWeeks 0 to 72
Total REGN1909 Concentration in Serum Over the Study DurationWeeks 0 to 60
Incidence of Treatment-emergent Anti-drug Antibodies (ADAs) to REGN1908 Throughout the StudyWeeks 0 to 72
Daily Number of Nighttime Awakenings Averaged Over the Initial 12 Weeks of the Treatment Period in Patients With Asthma Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12
Total REGN1908 Concentration in Serum Over the Study DurationWeeks 0 to 60
Incidence of Treatment-emergent ADAs to REGN1909 Throughout the StudyWeeks 0 to 72
Percent Change in FEV1 in Participants With Asthma Who Receive REGN1908-1909 Versus Placebo (up to Week 12)Baseline to week 12
Percent Change in FEV1 in Participants With Asthma Who Receive REGN1908-1909 Versus Placebo (up to Week 60)Baseline to week 60
Daily Medication Score (DMS) Averaged Over the Initial 12 Weeks of the Treatment Period in Participants Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

The Daily Medication Score (DMS) was calculated by adding points for each pre-specified medication. Participants will be asked to record their daily rescue medication use using an e-diary, including which medications and the amount of these prespecified medications. The scale is 0 (minimum) to 20 (maximum)

Asthma Daily Symptom (ADS) Score, Averaged Over the Initial 12 Weeks of the Treatment Period Using Asthma Daytime Symptom Diary (ADSD) and the Asthma Nighttime Symptom Diary (ANSD) in Participants With Asthma Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

The total daily asthma symptom score is a participant-reported outcome concerning the occurrence of asthma symptoms and their effect on a patient's daily activities and sleep. It is composed of two parts: daytime (five items) and nighttime (four items), both scored ordinally. Higher scores indicate more severe symptoms. The ADSD score will be based on 6 patient-reported symptoms (difficulty breathing, wheezing, shortness of breath, chest tightness, chest pain, and cough at their worst using an 11-point numeric rating scale (NRS) ranging from 0 ('None') to 10 ('As bad as you can imagine').

ADS Score Averaged Over the Last 12 Weeks of the Treatment Period Using ADSD and the ANSD in Participants With Asthma Who Receive REGN1908-1909 Versus Placebo (Weeks 48 to 60)Weeks 48 to 60
DMS Averaged Over the Last 12 Weeks of the Treatment Period in Participants Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60
Percent Change From Pre-treatment Baseline in Average DMS Averaged Over the Last 12 Weeks of the Treatment Period in Participants Who Receive REGN1908-1909 Versus PlaceboWeeks 48 to 60
Daily TOSS Averaged Over the Initial 12 Weeks of the Treatment Period in Participants Who Receive REGN1908-1909 Versus PlaceboWeeks 0 to 12

The TOSS ranges from 0 to 6 and is based on 2 eye symptoms: itching/redness/gritty feeling and tearing/watering. Each of the 2 symptoms is graded on a Likert scale ranging from 0 (none) to 3 (severe).

Change From Baseline to Week 60 in Asthma Control Questionnaire 5 Question Version (ACQ-5) in Participant With Asthma Who Receive REGN1908-1909 Versus PlaceboBaseline to week 60

The ACQ-5 had 5 questions, reflecting the top-scoring five asthma symptoms: woken at night by symptoms, wake in the mornings with symptoms, limitation of daily activities, shortness of breath and wheeze. Participants were asked to recall how their asthma had been during the previous week and to respond to each of the five symptom questions on a 7-point scale ranged from 0 (no impairment) to 6 (maximum impairment). ACQ-5 total mean score was mean of the scores of all 5 questions and, therefore, ranged from 0 (totally controlled) to 6 (severely uncontrolled), higher scores indicated lower asthma control.

Daily Number of Nighttime Awakenings Averaged Over the Last 12 Weeks of the Treatment Period in Patients With Asthma Who Receive REGN1908-1909 Versus Placebo (Weeks 48 to 60)Weeks 48 to 60

Trial Locations

Locations (92)

Integrated Research of Inland, Inc

🇺🇸

Riverside, California, United States

Allergy and Asthma Specialists PSC

🇺🇸

Owensboro, Kentucky, United States

Allergy Partners of Western North Carolina

🇺🇸

Asheville, North Carolina, United States

Optimed Research Ltd - Clinedge - PPDS

🇺🇸

Columbus, Ohio, United States

Aventiv Research Inc - Columbus - HyperCore - PPDS

🇺🇸

Dublin, Ohio, United States

Allergy and Clinical Immunology Associates

🇺🇸

Pittsburgh, Pennsylvania, United States

Aggarwal and Associates Ltd

🇨🇦

Brampton, Ontario, Canada

Bernstein Clinical Research Center Inc

🇺🇸

Cincinnati, Ohio, United States

Asthma and Allergy Associates PC - CRN - PPDS

🇺🇸

Colorado Springs, Colorado, United States

Velocity Clinical Research, Inc. (Meridan)

🇺🇸

Meridian, Idaho, United States

South Bend Clinic

🇺🇸

South Bend, Indiana, United States

Institute For Asthma and Allergy

🇺🇸

Chevy Chase, Maryland, United States

Charleston Allergy and Asthma

🇺🇸

Baltimore, Maryland, United States

Somnos Clinical Research

🇺🇸

Lincoln, Nebraska, United States

Nebraska Medical Research Institute, Inc. - CRN - PPDS

🇺🇸

Papillion, Nebraska, United States

Atlantic Research Center LLC

🇺🇸

Ocean City, New Jersey, United States

Allergy Partners of NJ, P.C.

🇺🇸

Teaneck, New Jersey, United States

SUNY Downstate Health Science University

🇺🇸

Brooklyn, New York, United States

Seattle Allergy & Asthma Research Institute

🇺🇸

Seattle, Washington, United States

Hamilton Allergy

🇨🇦

Hamilton, Ontario, Canada

Kingston Health Science Centre

🇨🇦

Kingston, Ontario, Canada

Stouffville Medical Clinic

🇨🇦

Stouffville, Ontario, Canada

Gordon Sussman Clinical Research Inc

🇨🇦

Toronto, Ontario, Canada

LMC Manna Research - Quebec - HyperCore - PPDS

🇨🇦

Levis, Quebec, Canada

Klinikum Stuttgart

🇩🇪

Stuttgart, Baden-Wurttemberg, Germany

Praxis Dr. med. Elke Decot

🇩🇪

Dreieich, Hessen, Germany

BAG Prof. Dr. G. Hoheisel Dr. A. Bonitz

🇩🇪

Leipzig, Sachsen, Germany

Uniwersytecki Szpital Kliniczny im. Wojskowej Akademii Medycznej Centralny Szpital Weteranow

🇵🇱

Lodz, Lodzkie, Poland

ETG Warszawa - PPDS

🇵🇱

Piaseczno, Mazowieckie, Poland

EMed Centrum Uslug Medycznych

🇵🇱

Rzeszow, Podkarpackie, Poland

ETG Kielce

🇵🇱

Kielce, Swietokrzyskie, Poland

Specjalistyczna Przychodnia Lekarska Alergo-Med Sp. z.o.o

🇵🇱

Poznan, Poland

Bluegrass Allergy Research

🇺🇸

Lexington, Kentucky, United States

Montana Medical Research

🇺🇸

Missoula, Montana, United States

Respiratory Medicine Research Institute of Michigan PLC

🇺🇸

Ypsilanti, Michigan, United States

Princeton Center For Clinical Research - CRN - PPDS

🇺🇸

Skillman, New Jersey, United States

UZ Leuven

🇧🇪

Leuven, Vlaams Brabant, Belgium

Universitätsklinikum Carl Gustav Carus an der TU Dresden

🇩🇪

Dresden, Sachsen, Germany

Riverside Medical Group - Circuit - PPDS

🇺🇸

Belleville, New Jersey, United States

Clinical Research Institute, Inc - CRN - PPDS

🇺🇸

Plymouth, Minnesota, United States

Private Practice Dr Jean Benoit Martinot

🇧🇪

Erpent, Belgium

Allergy Consultants PA

🇺🇸

Verona, New Jersey, United States

HNO Praxis am Neckar

🇩🇪

Heidelberg, Baden-Wurttemberg, Germany

Toronto Allergy Clinic

🇨🇦

Toronto, Ontario, Canada

Beldio Research GmbH

🇩🇪

Memmingen, Bayern, Germany

Wojewodzkie Wielospecjalistyczne Centrum Onkologii i Traumatologii im. M. Kopernika w Lodzi

🇵🇱

Lodz, Lodzkie, Poland

IP Clinic Sp. z o. o.

🇵🇱

Lodz, Lodzkie, Poland

ETG Zamosc - PPDS

🇵🇱

Zamosc, Lubelskie, Poland

Alergo-Med Specjalistyczna Przychodnia Lekarska Sp. z.o.o

🇵🇱

Tarnow, Malopolskie, Poland

Clinica Vitae Sp z o o

🇵🇱

Gdansk, Pomorskie, Poland

PDX Allergy, LLC dba Portland Research

🇺🇸

Happy Valley, Oregon, United States

The Medical College of Wisconsin, Inc.

🇺🇸

Greenfield, Wisconsin, United States

Emovis GmbH

🇩🇪

Berlin, Germany

UZ Gent

🇧🇪

Gent, Oost-Vlaanderen, Belgium

Universitatsklinikum Munster

🇩🇪

Munster, Nordrhein-Westfalen, Germany

Klinische Forschung Dresden GmbH (KFGN)

🇩🇪

Dresden, Sachsen, Germany

Salvus-Klinische Studien GmbH

🇩🇪

Leipzig, Sachsen, Germany

ALL-MED - Specjalistyczna Opieka Medyczna - Medyczny Instytut Badawczy

🇵🇱

Wroclaw, Dolnoslaskie, Poland

SPZOZ Uniwersytecki Szpital Kliniczny nr 1 im Norberta Barlickiego Uniwersytetu Medycznego w Lodzi

🇵🇱

Lodz, Lodzkie, Poland

Red Maple Trials

🇨🇦

Ottawa, Ontario, Canada

Joel Liem Medicine Professional Corporation

🇨🇦

Windsor, Ontario, Canada

Centre d'investigation Clinique Mauricie

🇨🇦

Trois-Rivieres, Quebec, Canada

Clinique Spécialisée en Allergie de la Capitale

🇨🇦

Quebec, Canada

Nouvel Hopital Civil

🇫🇷

Strasbourg, Bas-Rhin, France

AES - DRS - Synexus Polska Sp. z o.o. Oddzial we Wroclawiu

🇵🇱

Wroclaw, Dolnoslaskie, Poland

Centrum Alergologii Specjalistyczna Przychodnia Alergologiczna

🇵🇱

Lublin, Lubelskie, Poland

Centrum Alergologii Teresa Hofman

🇵🇱

Pila, Wielkopolskie, Poland

Praxis Dr. med. Claus Keller

🇩🇪

Frankfurt am Main, Hessen, Germany

Praxis Dr. med. Gerhard Schindlbeck

🇩🇪

Viernheim, Hessen, Germany

Praxis für HNO und Allergologie

🇩🇪

Dresden, Sachsen, Germany

ETG Lublin - PPDS

🇵🇱

Lublin, Lubelskie, Poland

Malopolskie Centrum Alergologii

🇵🇱

Krakow, Malopolski, Poland

Centrum Nowoczesnych Terapii Dobry Lekarz Sp. z o.o.

🇵🇱

Krakow, Malopolskie, Poland

Charité - Universitätsmedizin Berlin

🇩🇪

Berlin, Germany

Homeo Medicus Szczesiul sp. j.

🇵🇱

Bialystok, Podlaskie, Poland

Allergy and Asthma Associates of Southern California - CRN - PPDS

🇺🇸

Mission Viejo, California, United States

Peninsula Research Associates - CRN - PPDS

🇺🇸

Rolling Hills Estates, California, United States

Allergy and Asthma Medical Group and Research Center - CRN - PPDS

🇺🇸

San Diego, California, United States

Emory University

🇺🇸

Atlanta, Georgia, United States

Rush University Medical Center

🇺🇸

Chicago, Illinois, United States

Asthma and Allergy Center of Chicago Sc-Oak Park

🇺🇸

Oak Park, Illinois, United States

Sneeze Wheeze and Itch Associates LLC

🇺🇸

Springfield, Illinois, United States

University of Missouri - Hospital

🇺🇸

Columbia, Missouri, United States

NYU Langone Medical Center

🇺🇸

New York, New York, United States

Asthma, Nasal Disease and Allergy Research Center of New England

🇺🇸

East Providence, Rhode Island, United States

Asthma & Allergy Physicians of Rhode Island Clinical Research Institute (AAPRI CRI)

🇺🇸

Warwick, Rhode Island, United States

CHR de la Citadelle

🇧🇪

Liege, Belgium

ETG Lodz - PPDS

🇵🇱

Lodz, Lodzkie, Poland

Allergy Asthma and Clinical Research Center

🇺🇸

Oklahoma City, Oklahoma, United States

Colorado Allergy and Asthma Centers PC - CRN - PPDS

🇺🇸

Denver, Colorado, United States

Northwest Research Center - CRN - PPDS

🇺🇸

Portland, Oregon, United States

Montefiore Medical Center

🇺🇸

Bronx, New York, United States

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