Confirmatory Study on the Efficacy and Safety of the Fixed-dose Combination of Desloratadine/Betamethasone Versus Desloratadine

NCT ID: NCT06916884

Last Updated: 2025-04-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

70 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-11-11

Study Completion Date

2025-06-11

Brief Summary

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Phase IIIb , longitudinal, multicenter, randomized, double-blind, to evaluate efficacy and safety of the fixed-dose combination of Desloratadine 5 mg / Betamethasone 0.25 mg versus Desloratadine 5 mg monotherapy as treatment for symptoms associated with allergic rhinitis.

Detailed Description

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Nasal symptom changes will be assessed daily over a 10-day intervention period using the Total Nasal Symptom Score (TNSS) for allergic rhinitis. Patients will complete the first questionnaire during the randomization visit, followed by daily entries each night before bedtime using a patient diary. The final assessment will be completed during the study's end-of-treatment visit.

Quality of life, global clinical impression, and patient global assessment will be evaluated during in-person visits conducted at baseline, Day 5, and Day 10.

The incidence of adverse events throughout the study will be analyzed by treatment group and reported as frequencies and percentages. Events will be classified according to frequency, seriousness, severity, and their relationship to the investigational product.

Conditions

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Allergic Rhinitis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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Group A: Desloratadine 5 mg + Betamethasone 0.25 mg

Administered orally, one tablet a day, for 10 days.

Group Type EXPERIMENTAL

Desloratadine / Betamethasone in fixed dose

Intervention Type DRUG

1 tablet, once a day of 5 mg / 0.25 mg

Group B: Desloratadine 5 mg

Administered orally, one tablet a day, for 10 days.

Group Type ACTIVE_COMPARATOR

Desloratadine

Intervention Type DRUG

1 tablet, once a day of 5 mg

Interventions

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Desloratadine / Betamethasone in fixed dose

1 tablet, once a day of 5 mg / 0.25 mg

Intervention Type DRUG

Desloratadine

1 tablet, once a day of 5 mg

Intervention Type DRUG

Other Intervention Names

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DESLORA / BETA DESLORA

Eligibility Criteria

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Inclusion Criteria

* Willing to participate in the study and able to provide written informed consent.
* Clinical diagnosis (based on medical history and physical examination) of active allergic rhinitis at study entry.
* Patients presenting with moderate to severe nasal symptoms, with a Total Nasal Symptom Score (TNSS) ≥5.
* In the case of women of childbearing potential who are sexually active, the use of an acceptable contraceptive method (barrier and/or hormonal), as determined by the investigator.
* In the opinion of the Principal Investigator or treating physician, the patient is indicated for treatment with the investigational product and may derive clinical benefit from it.

Exclusion Criteria

* Patients for whom the investigational drug is medically contraindicated.
* Known allergy or hypersensitivity to the active ingredient, study medications, related products, or excipients.
* History of nasal trauma (surgical or accidental) within the past week.
* Positive pregnancy test, pregnant or breastfeeding women, or women planning to become pregnant during the course of the study.
* Acute or chronic lower or upper respiratory tract infections, such as the common cold, influenza, pneumonia, bronchitis, or chronic sinusitis.
* History of non-allergic rhinitis, such as chronic non-allergic rhinitis, drug-induced rhinitis, atrophic rhinitis, hormonal rhinitis, or unilateral rhinitis, as reported in the medical history or patient interview.
* History of nasal polyposis, primary ciliary dyskinesia syndrome, and/or non-allergic rhinitis with eosinophilia syndrome (NARES).
* Current smokers, or history of alcohol and/or drug abuse in the past year according to DSM-V criteria.
* History of seizure disorders, status epilepticus, or generalized tonic-clonic seizures.
* History of chronic hepatic failure classified as Child-Pugh C, as reported in the medical history or patient interview.
* History of chronic renal failure (glomerular filtration rate \< 30 mL/min/1.73 m²), as reported in the medical history or patient interview.
* Any condition, in the investigator's opinion, that affects prognosis or precludes outpatient management, which must be evaluated by the principal investigator to determine the subject's eligibility.
* History of severe, progressive, unstable, or advanced disease of any kind that could interfere with efficacy and safety evaluations or pose a risk to the patient.
* Oncology patients (except those with basal cell skin cancer) or patients with serious illnesses who, in the investigator's opinion, have a poor prognosis or life expectancy of less than one year, including those with mental health disorders.
* Active participation in another clinical trial involving an investigational treatment or participation in any clinical study within the previous two weeks.
* Patients whose participation in the study may be influenced (e.g., employees of the research center or sponsor, incarcerated individuals, etc.).
* Patients with symptoms suggestive of active COVID-19 infection (e.g., fever, cough, dyspnea) and/or contact within the past 14 days with a suspected or confirmed COVID-19 case and/or a positive COVID-19 test.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Laboratorios Silanes S.A. de C.V.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Francisco Murguía Martín, MD

Role: PRINCIPAL_INVESTIGATOR

Unidad de Medicina Especializada SMA

Tobías Avendaño Santiago, MD

Role: PRINCIPAL_INVESTIGATOR

Oaxaca Site Management Organization, S.C

Erika N Durón López, MD

Role: PRINCIPAL_INVESTIGATOR

Centro de Investigación Médica de Aguascalientes

María D Escobar Zalapa, MD

Role: PRINCIPAL_INVESTIGATOR

CICMEX Centro de Investigación Clínica de México S de RL de CV

Locations

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Laboratorio Silanes, S.A. de C.V.

Mexico City, , Mexico

Site Status RECRUITING

Countries

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Mexico

Central Contacts

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Jorge A Gonzalez, PhD

Role: CONTACT

5254883785 ext. 3761

Yulia Romero-Antonio, B.S.

Role: CONTACT

5254883785 ext. 3777

Facility Contacts

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Jorge A Gonzalez, PhD

Role: primary

5254883785 ext. 3761

Yulia Romero-Antonio, B.S.

Role: backup

5554883700 ext. 3777

References

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Reference Type BACKGROUND
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Simons FE, Prenner BM, Finn A Jr; Desloratadine Study Group. Efficacy and safety of desloratadine in the treatment of perennial allergic rhinitis. J Allergy Clin Immunol. 2003 Mar;111(3):617-22. doi: 10.1067/mai.2003.168.

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Reference Type BACKGROUND
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Bachert C. A review of the efficacy of desloratadine, fexofenadine, and levocetirizine in the treatment of nasal congestion in patients with allergic rhinitis. Clin Ther. 2009 May;31(5):921-44. doi: 10.1016/j.clinthera.2009.05.017.

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PMID: 19539095 (View on PubMed)

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Reference Type BACKGROUND
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May JR, Dolen WK. Management of Allergic Rhinitis: A Review for the Community Pharmacist. Clin Ther. 2017 Dec;39(12):2410-2419. doi: 10.1016/j.clinthera.2017.10.006. Epub 2017 Oct 25.

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Eifan AO, Durham SR. Pathogenesis of rhinitis. Clin Exp Allergy. 2016 Sep;46(9):1139-51. doi: 10.1111/cea.12780.

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Greiner AN, Hellings PW, Rotiroti G, Scadding GK. Allergic rhinitis. Lancet. 2011 Dec 17;378(9809):2112-22. doi: 10.1016/S0140-6736(11)60130-X. Epub 2011 Jul 23.

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Reference Type BACKGROUND
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Other Identifiers

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SIL-30810-III-23(1)

Identifier Type: -

Identifier Source: org_study_id

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