Red Maple Trials

Red Maple Trials Leaders in Allergy, Asthma and Immune Disease Clinical Research

02/20/2026

After 15 years serving the allergy community, Red Maple Trials has closed operations. We are profoundly grateful to our clients, partners and patients for their support and for the meaningful work we were able to accomplish together.

A Phase 2, randomized, double-blind, placebo-controlled study to investigate the safety and efficacy in reducing nasal a...
10/24/2025

A Phase 2, randomized, double-blind, placebo-controlled study to investigate the safety and efficacy in reducing nasal allergen challenge provoked symptoms of treatment with DM-101PX in adults with birch pollen allergic rhinitis or rhinoconjunctivitis.

The overall purpose of the study is to evaluate the safety and tolerability of treatment with DM-101PX and its efficacy in reducing symptoms provoked by Nasal Allergen Challenge (NAC) with birch pollen extract in individuals with moderate to severe birch pollen-induced allergic rhinitis or rhinoconjunctivitis.

Please click on the link below if you are interested in the study:

birch allergy, allergies

Pre-Screening Study for Participants With Environmental Allergies (including birch) for Future Participation in Research...
09/11/2025

Pre-Screening Study for Participants With Environmental Allergies (including birch) for Future Participation in Research Studies.

The objective of this pre-screening protocol is to pre-screen and confirm eligibility of participants with a documented history of moderate to severe environmental allergic rhinitis/rhinoconjunctivitis due to birch pollen exposure, for participation in clinical studies involving birch allergen-specific immunotherapy at Red Maple Trials.

birch allergy, allergies

A Pre-Screening Study to Conduct a Future Clinical Study in Participants Allergic to Common Ragweed (Ambrosia artemisiif...
09/08/2025

A Pre-Screening Study to Conduct a Future Clinical Study in Participants Allergic to Common Ragweed (Ambrosia artemisiifolia).
This pre-screening study will identify and characterize a patient population with a history of ragweed-induced rhinoconjunctivitis who may benefit from treatment and potentially be included in future interventional studies.
Please click on the link below if you are interested in the study:

A Pre-Screening Study to Conduct a Future Clinical Study in Participants Allergic to Common Ragweed (Ambrosia artemisiifolia)If you are interested in participating in this clinical trial, please fill out the contact form below to speak to one of our Research Coordinators to find out if this study is...

A Pre-Screening Study to Conduct a Future Clinical Study in Participants Allergic to Common Ragweed (Ambrosia artemisiif...
01/31/2025

A Pre-Screening Study to Conduct a Future Clinical Study in Participants Allergic to Common Ragweed (Ambrosia artemisiifolia).

This pre-screening study will identify and characterize a patient population with a history of ragweed-induced rhinoconjunctivitis who may benefit from treatment and potentially be included in future interventional studies.

Please click on the link below if you are interested in the study:

https://www.redmapletrials.com/ragweed

Learn about the VALIANT asthma study. This study is now enrolling adult participants 18 to 75 years of age with severe a...
04/10/2024

Learn about the VALIANT asthma study. This study is now enrolling adult
participants 18 to 75 years of age with severe asthma. Click to see study details

VALIANT Asthma studyIf you are interested in participating in this clinical trial, please fill out the contact form to speak to one of our Research Coordinators to find out if this study is right for you. The VALIANT studyThe VALIANT study is evaluating a study drug given every 12 weeks to adult par...

What’s next in the fight against COVID-19? The NextCOVE Study is researching an investigational vaccine that may help pr...
06/15/2023

What’s next in the fight against COVID-19? The NextCOVE Study is researching an investigational vaccine that may help protect against multiple variants of COVID-19 for individuals ages 12 to 17 who have received a COVID-19 vaccine and individuals ages 18 and older who have received a COVID-19 vaccine and at least 1 booster dose of a COVID-19 vaccine.

See if you or your child may qualify for this important trial.
Learn more at

The purpose of the NextCOVE Study is to evaluate an investigational bivalent vaccine that may protect people from getting sick if they come into contact with the virus that causes COVID-19 and multiple variants, including the Omicron variant.

Wishing you a safe and happy holiday season.
12/23/2022

Wishing you a safe and happy holiday season.

12/07/2022

COVID-19 Vaccine Survey StudyIf you are interested in participating in this clinical trial, please fill out and submit the quick questionnaire below.   Researchers are looking for volunteers to complete the VIP Survey each night - for up to one week following their COVID-19 vaccination appointment ...

12/07/2022

COVID-19 Vaccine Clinical TrialIf you are interested in participating in this clinical trial, please book a time to speak to one of our Research Coordinators to find out if this study is right for you. COVID-19 Vaccine StudyRed Maple Trials is looking for applicants who may be eligible to participat...

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2505 St-Laurent Boulevard
Ottawa, ON
K1H1E4

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Welcome to Red Maple Trials

What is Red Maple Trials?

Red Maple Trials is specialty clinical research organization that focuses in the fields of study of allergy, asthma, and immunology. Red Maple Trials works with biopharmaceutical companies to deliver environmental exposure chamber studies as well as other specialty services such as clinical project management, medical support, protocol design, to name a few examples. We have a long history in clinical research and we hold ourselves to the highest standards in both quality and patient safety. Our team has delivered successfully and safely on over 240 clinical trials and we bring over 130 combined years of experience in our field.

What is a chamber study?

Chamber studies are a specialized type of environmental allergy study. They are usually done to test the safety and effectiveness of various investigational medications. The problem with most environmental allergy studies is that there is no way to know exactly how much allergen (pollen, pet dander, etc) a patient is exposed to over the course of a study. This can result in large variations in patient symptoms, and can make results and data unclear. However, in chamber studies, researchers can control exactly how much allergen patients are exposed to, making the results clearer and the data more reliable. Researchers do this by measuring the symptoms of patients in a “chamber” — a large room capable of controlling temperature, humidity and allergen concentration.