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Allergic RhinitisPhase 3NCT00789152

The Effect of Desloratadine and Levocetirizine on Nasal Obstruction (Study P03609)

A Phase 3 study testing desloratadine and levocetirizine in people with Allergic Rhinitis, run by Organon and Co.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This was a study to measure the ability of desloratadine and levocetirizine to decrease nasal obstruction in subjects who had study-induced allergic rhinitis. Study participants had allergic rhinitis symptoms induced in a Vienna Challenge Chamber and then received desloratadine or levocetirizine for 8 days. Read more about this study

Who is it for?
Ages 18 to 45 years
Conditions the study is for
Allergic Rhinitis
What is being tested?
desloratadine and levocetirizine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
81 participants
Where
No sites listed yet
Study dates
1 Dec 2003to 1 May 2004
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • 18 to 45 years of age
  • Were free of any clinically significant disease that would interfere with study evaluations.
  • Demonstrated hypersensitivity to the grass allergen used in the chamber unless confirmed previously within 12 months.
  • Hypersensitivity to the allergen was documented by a positive response to the skin prick test with a wheal diameter at least 3 mm larger than the diluent control and by a radioallergosorbent test (RAST) class of >=2 (rating scale 0 -6).
  • Had a history of SAR for at least 2 years, as diagnosed by the investigator, another physician, or subject-provided history.
  • Reported having shown therapeutic efficacy with previous use of an antihistamine (without a decongestant).
  • At the screening allergen provocation, the subject had a nasal obstruction symptom severity score of at least moderate (>=2) and a decrease from baseline in nasal airflow (mL/sec) measured by rhinomanometry of >=30% within 2 hours of allergen exposure. Also, the subject had a nasal obstruction symptom severity score of none or mild (<=1) prior to exposure to allergen.

Who cannot join

  • Women who were pregnant or nursing.
  • Had a body mass index (BMI) >=30 kg/m^2.
  • Had asthma; were being treated with inhaled or oral corticosteroids, chromones, theophylline, leukotriene inhibitors, or short-acting inhaled β2-agonists (except during or immediately after the allergen exposures); and could not go through the washout periods and the entire study without needing these medications.
  • Developed wheezing or dyspnea during the screening allergen exposure.
  • Had a respiratory infection during the 4 weeks prior to pre-dose evaluations.
  • Had any clinically significant deviation from normal in the physical examination that, in the investigator's judgment, could interfere with the study evaluation or affect subject safety.
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  • Had any history of or laboratory evidence of hepatic failure or renal failure with a glomerular filtration rate (GFR) known to be <30 mL/min.
  • Had a known potential for hypersensitivity, allergic, or idiosyncratic reaction to the study drug or excipients.
  • Had nasal structural abnormalities, including large nasal polyps and marked septum deviation, that significantly interfered with nasal airflow.

About this study

Official title: The Effects of Desloratadine and Levocetirizine on Nasal Obstruction in Subjects With Induced Allergic Rhinitis in the VCC Assessed Clinically and With Nasal Rhinomanometry and Nasal Flowmetry

This was a study to measure the ability of desloratadine and levocetirizine to decrease nasal obstruction in subjects who had study-induced allergic rhinitis. Study participants had allergic rhinitis symptoms induced in a Vienna Challenge Chamber and then received desloratadine or levocetirizine for 8 days. After at least a 10 to 35-day washout period (time when no drug is given), subjects received the opposite treatment for 8 days. Subjects had their total nasal symptom measured.on the 8th day of each treatment period.

Being tested
desloratadine, levocetirizine
Medical subject headings
Rhinitis, Allergic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • desloratadineDrug

    Also called Clarinex, SCH 034117

    desloratadine 5 mg daily x 8 days

  • levocetirizineDrug

    Also called XYZAL®

    levocetirizine 5 mg daily x 8 days

Study groups in NCT00789152
Study groupRoleWhat they receive
desloratadine followed by levocetirizineExperimentalSubjects in this arm received desloratadine 5 mg daily for 8 days, followed by 10 day washout period, then followed by levocetirizine 5 mg daily for 8 days
Receives: Drug: desloratadine; Drug: levocetirizine
levocetirizine followed by desloratadineExperimentalSubjects in this arm received levocetirizine 5 mg daily for 8 days, followed by 10 day washout period, then followed by desloratadine 5 mg daily for 8 days
Receives: Drug: desloratadine; Drug: levocetirizine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Total Nasal Symptom Score (TNSS) at the end of treatment phase compared to pre-exposure baseline scores

    Measured: End of each treatment phase (8th day)

Secondary outcomes (2)
  1. Nasal Peak Inspiratory Flow (NPIF), Nasal secretion weights, nasal airflow, individual nasal symptoms, TNSS, Total Non-Nasal Symptoms Severity Score (TNNSS), Total Symptom Score (TSS)

    Measured: End of each treatment phase (8th day)

  2. Safety

    Measured: All study visits

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Nov 2008 (estimated)
  2. Study start1 Dec 2003
  3. Primary completion1 May 2004
  4. Study completion1 May 2004

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
81 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00789152
Sponsor's protocol ID
P03609
Status last verified
Feb 2022
First submitted
30 Oct 2008
Last updated
15 Aug 2024
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing desloratadine and levocetirizine in people with Allergic Rhinitis, run by Organon and Co.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Aug 2024. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Total Nasal Symptom Score (TNSS) at the end of treatment phase compared to pre-exposure baseline scores (time frame: End of each treatment phase (8th day)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Aug 2024.

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