Influenza Clinical Trial
Official title:
ADaptive ASsessment of TReatments for influenzA: A Phase 2 Multi-centre Adaptive Randomised Platform Trial to Assess Antiviral Pharmacodynamics in Early Symptomatic Influenza Infection (AD ASTRA)
This trial will use a previously validated platform, to quantitatively assess antiviral effects in low-risk patients with high viral burdens and uncomplicated influenza, to determine in-vivo antiviral activity. In this randomised, open-label, controlled, group sequential, adaptive, platform trial, we will compare the performance of available influenza antivirals, and those with potential activity, relative to the control (no treatment) and each other. AD ASTRA study is supported by the Wellcome Trust Grant ref: 223195/Z/21/Z through the COVID-19 Therapeutics Accelerator
Several influenza antivirals are licensed, differing in availability and routes of administration. Direct comparisons of antiviral and clinical efficacy between the multiple available antivirals are lacking. This comparative information is important for guideline development and for aiding purchasing and prioritisation decisions with several options available. The platform trial will assess the following interventions: - Licensed influenza antiviral interventions: oseltamivir (TAMIFLU®), peramivir (RAPIVAB®), zanamivir (RELENZA®), laninamivir (INAVIR®), baloxavir (XOFLUZA®) and favipiravir alone and in combination. The interventions will be chosen in order of priority as well as local feasibility at sites (availability of drugs, local ethics committee and regulatory approvals) - Interventions with antiviral activity against influenza demonstrated in pre-clinical studies: molnupiravir Randomisation to the no antiviral treatment control arm (no intervention) will be fixed at a minimum of 20% throughout the study. The randomisation ratios will be uniform for all available interventions. ;
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