NCT00423995

Brief Summary

This is study of LMC, phenylephrine, and placebo in subjects with SAR. There are three visits: At Visit 1, subjects will be evaluated for participation and, if they qualify, will attend Visit 2 for priming. At Visit 2, ragweed pollen will be fed continuously and dispensed into the environmental exposure unit to induce an allergic reaction. Pollen counts will be monitored and recorded. During the priming visit(s), subjects will be evaluated to determine if they qualify. If qualified, they will return for Visit 3, where ragweed pollen will be fed continuously and dispensed into the environmental exposure unit to induce an allergic reaction. Pollen counts will be monitored and recorded as in the Priming Session. Subjects will complete symptom evaluations and if qualified, they will receive study medication and remain in the environmental exposure unit where symptoms will be evaluated for 8 hours after dosing. PNIF will be evaluated only during the treatment session. Four nasal symptoms (rhinorrhea, nasal congestion, sneezing, and nasal itching) and three non-nasal symptoms (itching/burning eyes, tearing/watery eyes, and itching of ears/palate) will be evaluated. Adverse events will be collected throughout the study to assess safety and tolerability, and vital signs will be collected at Visit 1 and at the end of Visit 3.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
379

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Nov 2006

Shorter than P25 for phase_3

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

November 1, 2006

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

January 17, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 18, 2007

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2007

Completed
9 days until next milestone

Study Completion

Last participant's last visit for all outcomes

March 10, 2007

Completed
Last Updated

August 15, 2024

Status Verified

February 1, 2022

Enrollment Period

4 months

First QC Date

January 17, 2007

Last Update Submit

August 13, 2024

Conditions

Interventions

Eligibility Criteria

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

You may qualify if:

  • Ages 18 years or greater, of either sex, any race.
  • A history of SAR due to ragweed for at least two consecutive ragweed seasons, as diagnosed by the investigator, another physician, or subject-provided history.
  • Positive skin prick test to ragweed allergen to be used in the EEU, unless previously done within 12 months
  • Minimum scores (diary evaluation time) must be achieved during pollen exposure during both a Priming Visit and the Treatment Visit:
  • A negative urine pregnancy test at Screening and prior to randomization at the Treatment Visit for all female subjects of childbearing potential.
  • Use of a medically accepted method of birth control.
  • In the judgment of the investigator, good health and freedom from any clinically significant disease (other than SAR) that would interfere with the study schedule or procedures, or compromise the subject's safety.
  • The appropriate washout times from the prohibited medications.

You may not qualify if:

  • Pregnancy, intention of becoming pregnant, or lactation.
  • A situation or any condition that, in the opinion of the investigator, may interfere with optimal participation in the study.
  • Use of any investigational drugs, including placebo, within 30 days of Screening and for the duration of the study.
  • Current participation in any other clinical study.
  • Staff personnel directly involved with this study.
  • Dependence (in the opinion of the investigator) upon nasal, oral, or ocular decongestants, nasal topical antihistamines, or nasal steroids.
  • Nasal structural abnormalities, including large nasal polyps or marked septal deviation, that cause greater than 50% obstruction of nasal airflow.
  • Previous enrollment (ie, signed informed consent) into this study.
  • History of rhinitis medicamentosa.
  • A history of anaphylaxis or severe or serious reaction to skin testing.
  • A known potential for hypersensitivity, allergy, or idiosyncratic reaction to the study drugs or excipients.
  • Narrow-angle glaucoma, increased intraocular pressure, urinary retention, hypertension, severe coronary artery disease, ischemic heart disease, diabetes mellitus, hyperthyroidism, renal impairment, or prostatic hypertrophy; current treatment with monoamine oxidase (MAO) inhibitors.
  • An upper or lower respiratory tract infection within 28 days (4 weeks) before Priming (Visit 2) and thereafter.).
  • History of a positive test for HIV, TB (not due to vaccination), and hepatitis B (not due to vaccination) or C.
  • Asthma that requires medication other than occasional (\<= 3 uses per week) use of an inhaled short-acting beta-2 agonist.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Day JH, Briscoe MP, Ratz JD, Danzig M, Yao R. Efficacy of loratadine-montelukast on nasal congestion in patients with seasonal allergic rhinitis in an environmental exposure unit. Ann Allergy Asthma Immunol. 2009 Apr;102(4):328-38. doi: 10.1016/S1081-1206(10)60339-0.

MeSH Terms

Conditions

Rhinitis, Allergic, Seasonal

Interventions

Loratadine

Condition Hierarchy (Ancestors)

Rhinitis, AllergicRhinitisNose DiseasesRespiratory Tract DiseasesRespiratory HypersensitivityOtorhinolaryngologic DiseasesHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Intervention Hierarchy (Ancestors)

CyproheptadineDibenzocycloheptenesBenzocycloheptenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPolycyclic Compounds

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 17, 2007

First Posted

January 18, 2007

Study Start

November 1, 2006

Primary Completion

March 1, 2007

Study Completion

March 10, 2007

Last Updated

August 15, 2024

Record last verified: 2022-02