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Nasal recombinant human interferon alfa-2b in ARI

Evaluation of intranasal recombinant human interferon alfa-2b in the treatment of acute respiratory viral infections with mild clinical classification. Dose study. NASIRA studio. Phase II-III trial - IFNARI

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
RPCEC
Registry ID
RPCEC00000412
Enrollment
608
Registered
2022-12-06
Start date
2023-02-01
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

acute respiratory infection

Interventions

Stage I. Group A (Experimental): 2 drops (0.10 mL, 500,000 IU Nasalferon) in each nostril, 2 times a day, for 10 days. Total daily dose: 2 million IU. Group B (Experimental): 1 drop (0.05 mL, 250,000
Placebos
Administration, Intranasal

Sponsors

Center for Genetic Engineering and Biotechnology (CIGB)
Lead Sponsor
Ministry of Public Health (MINSAP), Cuba
Collaborator
Ministry of the Armed Forces, Cuba
Collaborator

Eligibility

Sex/Gender
All
Age
19 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.- Clinical diagnosis of ARI with mild symptoms (non-sustained fever = 38 ºC, cough, sore throat, sneezing, nasal congestion, mild headache, mild body pain, malaise, diarrhea and/or vomiting. White nasal discharge (clear) or transparent Radiology (Rx) normal Oxygen saturation greater than 95%). 2.- Age between 19 and 80 years, regardless of gender or skin color. 3.- Time not greater than 48 hours from the onset of clinical respiratory symptoms. 4.- Voluntary nature of the patient to participate in the trial.

Exclusion criteria

Exclusion criteria: 1.- Individuals under 19 years of age and over 80. 2.- Individuals with suspected clinical diagnosis of ARI with bacterial etiology. 3.- Individual with a clinical diagnosis of ARI with mild symptoms, without having started treatment in the 48 hours after the onset of symptoms. 4.- Individuals with ARI symptoms in moderate, severe or critical clinical classification. 5.- Individuals with decompensated chronic disease. 6.- Treatment with immunosuppressants in the last month prior to inclusion. 7.- Ongoing treatment, for any reason, with some IFN alpha formulation. 8.- Active use of any other medication or substance intranasally. 9.- Patient diagnosed with Myasthenia Gravis. 10.- Administration of any investigational drug in the 30 days prior to inclusion in the study. 11.- Individuals with hypersensitivity to thiomersal (thimerosal). 12.- Individuals with hypersensitivity to alpha interferon. 13.- Evident mental incapacity to issue consent and act accordingly with the study. 14.- Pregnancy, puerperium or lactation.

Design outcomes

Primary

MeasureTime frame
Patient recovery (Patient recovered: PCR negative for ARI of viral etiology and absence of clinical symptoms of ARI. Patient not recovered: PCR positive for ARI of viral etiology or presence of clinical symptoms of ARI). Measurement time: 3rd day, 8th day and 10th day after starting the treatment

Secondary

MeasureTime frame
1.- Clinical response (disappearance of clinical respiratory symptoms). Measurement time: Daily during the patient's treatment time. 2.- Virological response (negative PCR for ARI of viral etiology). Measurement time: on the 8th and 11th day after starting treatment. 3.- Severity of the disease (Classification of the disease into mild, moderate, severe and critical stages). Measurement time: Daily during the patient's treatment time. 4. Post-treatment clinical response (absence of clinical respiratory symptoms since the previous evaluation). Measurement time: on day 28 (week 4), day 56 (week 8) and day 84 (week 12) after the treatment was completed. 5. Security variables (Detection of adverse events during the physical examination of the patient or referrals). Measurement time: Daily during the patient's treatment time

Countries

Cuba

Contacts

Public ContactHugo Nodarse Cuni

Center for Genetic Engineering and Biotechnology

hugo.nodarse@cigb.edu.cu

Outcome results

None listed

Source: RPCEC (via WHO ICTRP) · Data processed: Apr 4, 2026