NCT04532762

Brief Summary

Allergic rhinitis (AR) in its seasonal and perennial form is a common allergic condition. The majority of allergic rhinitis sufferers report nasal (congestion, sneezing, itching and rhinorrhea) and ocular (redness, watery eyes, itching and burning) symptoms. Coldamaris akut nasal spray is a Carragelose® containing hyperosmolar solution that is indicated for supportive treatment in case of blocked nose due to rhinitis of any kind. Carragelose® is a sulfated polymer from red seaweed also widely used in the food industry and has GRAS status (FDA). The increased osmolality is based on the addition of sorbitol. This clinical study has the aim to show that Coldamaris akut has a mild decongestant effect. This will be a prospective, controlled, double-blinded randomized two-way cross-over single site study in adult subjects (18 to 65 years) who demonstrate a grass pollen specific Immunoglobulin E (IgE) reactivity and have a history of grass pollen induced allergic rhinitis/rhinoconjunctivitis with or without controlled asthma. In the cross-over setting two treatments, namely Coldamaris Akut and Coldamaris sine will be evaluated. The objective of the trial is to demonstrate a decongestant effect on the nasal mucosa of patients treated with Coldamaris akut nasal spray compared to subjects treated with Coldamaris sine nasal spray in grass pollen induced rhinitis/rhinoconjunctivitis. The evaluation will be based on the assessment of nasal congestion symptom during grass pollen challenge performed in the Vienna Challenge Chamber (environmental exposure chamber). Secondary objective of the trial is to demonstrate the clinical performance of Coldamaris akut nasal spray on nasal symptoms compared to subjects treated with saline nasal spray.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
42

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2020

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 4, 2020

Completed
17 days until next milestone

First Submitted

Initial submission to the registry

August 21, 2020

Completed
10 days until next milestone

First Posted

Study publicly available on registry

August 31, 2020

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
Last Updated

February 21, 2021

Status Verified

August 1, 2020

Enrollment Period

5 months

First QC Date

August 21, 2020

Last Update Submit

February 19, 2021

Conditions

Keywords

Allergic RhinoconjunctivitisAllergic RhinitisColdamaris akutVienna Challenge ChamberNasal Congestion SymptomCarrageenanCarrageloseIota-carrageenan

Outcome Measures

Primary Outcomes (1)

  • Nasal Congestion Symptom Score (NCSS)

    calculated as the baseline adjusted mean of NCSS measured every 15 minutes during the grass pollen allergen exposure challenge from time-point 0 to 6 hours. The NCSS is scored on a 4-point scale from 0-3 with "0"= none "1"=mild "2"=moderate "3"=severe

    0-6 hourse of allergen exposure challenge

Secondary Outcomes (5)

  • Nasal airflow

    0-6 hourse of allergen exposure challenge

  • Total nasal symptom score (TNSS)

    0-6 hourse of allergen exposure challenge

  • Total ocular symptom score (TOSS)

    0-3 hourse of allergen exposure challenge

  • Total asthma symptom score (TASS)

    0-3 hourse of allergen exposure challenge

  • Nasal secretion

    0-6 hourse of allergen exposure challenge

Study Arms (2)

Coldamaris akut

EXPERIMENTAL

One puff (140µl) into each nostril

Device: nasal spray

Placebo

PLACEBO COMPARATOR

One puff (140µl) into each nostril

Device: nasal spray

Interventions

Application of a nasal spray

Coldamaris akutPlacebo

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Written informed consent obtained before any trial related procedures are performed
  • Healthy male or female subjects aged 18 to 65 years
  • A documented clinically relevant allergic history of moderate to severe SAR to grass pollen for the previous two years
  • Subjects exhibit a moderate to severe response to approximately 1500 grass pollen grains/m3 within the first 2 hours in the Vienna Challenge Chamber, which is defined as total nasal symptom score (TNSS) of at least 6 (out of 12) with the necessity to score at least "moderate = 2" for the single symptom "nasal congestion" using standard VCC grass pollen allergen mixture. Nasal symptom score is the sum of "nasal congestion", "rhinorrhea", "itchy nose" and "sneezing", each of which have been scored on a categorical scale from 0 to 3.
  • Positive Skin Prick Test (SPT) response (wheal diameter at least 3 mm larger than diluent control) to grass pollen SPT solutions (standard Allergopharma) at screening or within the last 12 months prior to study start.
  • Positive serum specific IgE against recombinant major allergen components of the used grass pollen e.g. g6 (specific CAP IgE ≥0.70 kU/L) at screening or within the last 12 months prior to study start.
  • Asthma patients only if the asthma condition is mild or intermittent, and if those are not treated with steroids
  • Subject has a forced expiratory volume in 1 second (FEV1) of at least 80% of predicted value (ECCS) at the screening.
  • Subject is capable of understanding the study procedures and potential risks associated with the study, and voluntarily agrees to participate by giving written informed consent.
  • Subject is able to adhere to dose and visit schedules.
  • Subject is able to read, understand and complete questionnaires and diaries.

You may not qualify if:

  • A clinical history of uncontrolled asthma within 3 months prior to screening
  • Subjects with asthma requiring treatment with inhaled corticosteroids on a regular basis judged by the
  • investigator
  • Previous successful immunotherapy to grass pollen, a grass pollen allergen or a cross-reacting allergen within the past 3 years
  • Ongoing treatment with any allergen-specific immunotherapy product
  • Symptoms of or treatment for upper respiratory tract infection, acute sinusitis, acute otitis media or other
  • relevant infectious process at randomisation
  • Clinically relevant nasal polyps, medical history of paranasal sinus surgery and/or medical history of surgery of
  • nasal turbinates judged by the investigator
  • Subjects using any ophthalmic steroids during the last 30 days
  • Subjects treated with nasal, inhaled or systemic steroids during the last 30 days
  • History of anaphylaxis with cardiorespiratory symptoms (immunotherapy, exercise induced, food allergy, drugs
  • or an idiopathic reaction)
  • Any clinically relevant chronic disease judged by the investigator
  • Systemic disease affecting the immune system judged by the investigator
  • +10 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Vienna Challenge Chamber

Vienna, 1140, Austria

Location

Related Publications (1)

  • Unger-Manhart N, Morokutti-Kurz M, Zieglmayer P, Russo A, Siegl C, Konig-Schuster M, Koller C, Graf P, Graf C, Lemell P, Savli M, Zieglmayer R, Dellago H, Prieschl-Grassauer E. Decongestant Effect of "Coldamaris Akut", a Carrageenan- and Sorbitol-Containing Nasal Spray in Seasonal Allergic Rhinitis. Int J Gen Med. 2024 Nov 8;17:5105-5121. doi: 10.2147/IJGM.S476707. eCollection 2024.

MeSH Terms

Conditions

Rhinitis, Allergic

Interventions

Tobacco Use Cessation Devices

Condition Hierarchy (Ancestors)

RhinitisNose DiseasesRespiratory Tract DiseasesRespiratory HypersensitivityOtorhinolaryngologic DiseasesHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Intervention Hierarchy (Ancestors)

Therapeutics

Study Officials

  • Eva Prieschl-Grassauer, PhD

    CSO

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: This is a prospective, placebo-controlled, double-blinded randomized two-way cross-over single site study in adult subjects (18 to 65 years) who demonstrate a grass pollen specific Immunoglobulin E (IgE) reactivity and have a history of grass pollen induced allergic rhinitis/rhinoconjunctivitis with or without controlled asthma. In the cross-over setting Coldamaris akut nasal spray will be evaluated compared to Coldamaris sine 0.5% nasal spray.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 21, 2020

First Posted

August 31, 2020

Study Start

August 4, 2020

Primary Completion

December 31, 2020

Study Completion

December 31, 2020

Last Updated

February 21, 2021

Record last verified: 2020-08

Locations