Adjunctive Sirolimus and Oseltamivir Versus Oseltamivir Alone for Treatment of Influenza

The Chinese University of Hong Kong

Status and phase: Enrolling; Phase 3

Conditions: Influenza

Treatments: Drug: Oseltamivir; Drug: sirolimus and oseltamivir

Study type: Interventional

Funder types: Other

Identifiers

NCT03901001

Sirolimus influenza/Hui/2019

Details and patient eligibility

About

Seasonal influenza epidemics are important causes of mortality and morbidity. Cytokine dysregulation, with high levels of pro-inflammatory cytokines, occurs in patients with severe influenza A(H1N1)pdm09 virus infection, A(H5N1) infection, and A(H7N9) infection. We aim to investigate the effects of adjunctive sirolimus in adults hospitalized with influenza A or B infections involving the lower respiratory tract.

Full description

The investigators aim to investigate the effects of adjunctive sirolimus in adults hospitalized with influenza A or B infections involving the lower respiratory tract. Patients will be randomized to either oseltamivir and adjunctive sirolimus or oseltamivir alone and assessed with reference to normalization of respiratory status (SaO2 ≥93% or respiratory rate ≤20/min on room air) as the primary endpoint,10 cytokines/chemokines and pro-inflammatory mediator changes, viral clearance, symptom resolution, ICU admission/death, day 28 mortality; safety profiles will also be assessed.

The investigators hypothesize that addition of sirolimus to oseltamivir would improve respiratory status and other endpoints more effectively than oseltamivir alone through reduction of inflammatory responses without affecting viral clearance.

Enrollment: 160 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• influenza A and B virus infections confirmed by PCR and/or immunofluorescence assays, hospitalized for the management of severe manifestations of influenza, initiation of oseltamivir, clinical evidence of lower respiratory tract infection (e.g. shortness of breath, tachypnea, oxygen desaturation, crepitations on auscultation, infiltrations or consolidations on chest radiograph) and written informed consent (by the subjects, or from their next of kin if the subjects are unable to provide written consent at the time of enrollment)

Exclusion criteria

• use of other immunosuppressants (e.g. post-chemotherapy, post-transplant, autoimmune diseases) other than systemic corticosteroids
• patients with known immuno-compromised conditions (e.g. active haematological malignancies, HIV/AIDS patients who are on antiretroviral therapy and CD4 cell count < 200)
• pregnancy/lactation
• hepatic failure
• patients with surgery done/planned within 1 month
• patients who have received macrolide antibiotics and NSAID for 1 week prior to enrolment due to their immuno-modulating effects
• patients on drugs that may interact and alter sirolimus level (rifampicin, azole antifungals, phenytoin, diltiazem, verapamil, nicardipine, metoclopramide, phenobarbital, carbamazepine) will be excluded for safety purposes
• Use of investigational anti-influenza antivirals and blood products

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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160 participants in 2 patient groups, including a placebo group

oseltamivir and adjunctive sirolimus

Active Comparator group

Description:

Sirolimus 1 mg daily and oseltamivir 75 mg bid for 5 days, both given orally. Extension of dosing to 10 days for oseltamivir and the study drug is allowed if there is slow recovery, lack of improvement, or deterioration.

Treatment:

Drug: sirolimus and oseltamivir

oseltamivir alone

Placebo Comparator group

Description:

oral oseltamivir 75 mg bid alone for 5 days. Extension of dosing to 10 days for oseltamivir and the study drug is allowed if there is slow recovery, lack of improvement, or deterioration.

Treatment:

Drug: Oseltamivir