Try our beta test site

Effects of Loratadine/Montelukast vs Pseudoephedrine and Placebo in Patients With Seasonal Allergic Rhinitis (Study P04095) (COMPLETED)

This study has been completed.
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp. Identifier:
First received: April 28, 2006
Last updated: October 19, 2015
Last verified: October 2015
This is a Phase 3, randomized, parallel-group, multicenter, double-dummy, double-blind study with a screening period. Subjects will receive one of the following three treatment groups for 15 days: loratadine 10 mg/montelukast 10 mg combination, pseudoephedrine 240 mg, or placebo. The primary objective of this study is to assess the efficacy of the combination of loratadine/montelukast, a once-daily tablet containing 10 mg loratadine and 10 mg montelukast, compared with placebo in subjects with seasonal allergic rhinitis (SAR) in relieving the symptom of nasal congestion. The safety profile of combined loratadine/montelukast relative to placebo and pseudoephedrine will also be evaluated.

Condition Intervention Phase
Rhinitis, Allergic, Seasonal
Drug: loratadine; montelukast
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: Efficacy and Safety of Combination Loratadine/Montelukast QD vs Pseudoephedrine and Placebo in the Treatment of Subjects With Seasonal Allergic Rhinitis

Resource links provided by NLM:

Further study details as provided by Merck Sharp & Dohme Corp.:

Enrollment: 1095
Study Start Date: March 2006
Study Completion Date: June 2006
Primary Completion Date: June 2006 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   15 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Aged 15 years or older, of either sex and of any race.
  • At least a 2-year documented history of SAR with symptoms during the study season.
  • A positive skin-prick test response to seasonal
  • Clinically symptomatic at Screening and at the Baseline Visits
  • General good health.
  • Freedom from any clinically significant disease, other than SAR, that would interfere with the study evaluations.
  • Willingness (subjects and/or a parent/guardian) to give written informed consent and ability to adhere to dosing and visit schedules and meet study requirements.
  • Negative pregnancy test

Exclusion Criteria:

  • A history of anaphylaxis and/or other severe local reaction(s) to skin testing.
  • Asthma requiring chronic use of inhaled or systemic corticosteroids.
  • Current or history of frequent, clinically significant sinusitis or chronic purulent postnasal drip.
  • Rhinitis medicamentosa.
  • A history of allergies to more than two classes of medications or allergy to or intolerance of antihistamines, montelukast, or pseudoephedrine.
  • An upper respiratory tract or sinus infection that required antibiotic therapy without at least a 14 day washout prior to the Screening Visit, or a viral upper respiratory infection within 7 days before the Screening Visit.
  • Nasal structural abnormalities, including large nasal polyps and marked septal deviations, that significantly interfere with nasal air flow.
  • Dependence (in the opinion of the investigator) on nasal, oral, or ocular decongestants, nasal topical antihistamines, or nasal steroids.
  • Narrow-angle glaucoma, increased intraocular pressure, urinary retention, hypertension, severe coronary artery disease, ischemic heart disease, diabetes mellitus, hyperthyroidism, renal impairment, or prostatic hypertrophy, and those receiving monamine oxidase (MAO) inhibitor therapy.
  • Use of any drug in an investigational protocol in the 30 days before the Screening Visit.
  • Current immunotherapy (desensitization therapy), unless on a regular maintenance schedule prior to the Screening Visit, which should be maintained for the remainder of the study. No desensitization treatment within 24 hours before any visit.
  • Requirement for chronic use of tricyclic antidepressants.
  • Pregnancy or lactation.
  • Family member of the investigation study staff.
  • Current evidence of clinically significant hematopoietic, cardiovascular, hepatic, renal, neurologic, psychiatric, autoimmune disease, or other disease that precludes the subject's participation in the study. Particular attention should be given to exclude subjects with conditions that would currently interfere with the absorption, distribution, metabolism, or excretion of the study drug or interfere with the subject's ability to complete or reliably complete the diary card.
  • Significant medical condition(s) that, in the judgment of the investigator, might interfere with the study or require treatment.
  • Compromised ability to provide informed consent..
  • A history of noncompliance with medications or treatment protocols.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

No Contacts or Locations Provided
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Merck Sharp & Dohme Corp. Identifier: NCT00319995     History of Changes
Other Study ID Numbers: P04095
Doc ID 3058224;
SCH 445761
Study First Received: April 28, 2006
Last Updated: October 19, 2015

Additional relevant MeSH terms:
Rhinitis, Allergic
Rhinitis, Allergic, Seasonal
Nose Diseases
Respiratory Tract Diseases
Respiratory Hypersensitivity
Otorhinolaryngologic Diseases
Hypersensitivity, Immediate
Immune System Diseases
Respiratory Tract Infections
Bronchodilator Agents
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Asthmatic Agents
Respiratory System Agents
Nasal Decongestants
Vasoconstrictor Agents
Central Nervous System Stimulants
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Leukotriene Antagonists
Hormone Antagonists processed this record on March 29, 2017