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The world's first human challenge trial in which volunteers were deliberately exposed to Covid-19 to advance research into the disease was found to be safe in healthy young adults, one of the companies running the study said on Wednesday. The data supports the safety of this model which could theoretically provide a "plug and play" platform for testing therapies and vaccines using the original Covid-19 strain as well as variants of the virus, Open Orphan, which carried out the study, said in a statement. Open Orphan is running the project, launched a year ago, with Imperial College London, the UK government's vaccines task force and the clinical company  hVIVO. The trial infected 36 healthy male and female volunteers aged 18-29 years with the original SARS-CoV-2 strain of the virus and closely monitored them in a controlled quarantined setting. They will be followed up for 12 months after discharge from the quarantine facility.

The British scientists behind one of the major therapeutic Covid-19 trials have turned their focus to treatments for monkeypox, a viral disease that has been labelled a global health emergency by the World Health Organization. The team from Oxford University behind the so-called RECOVERY trial - which honed in on four effective Covid treatments - on Tuesday unveiled a new trial, dubbed PLATINUM, to confirm whether Siga Technologies' tecovirimat is an effective treatment for monkeypox. Although there are vaccines developed for the closely related smallpox that can reduce the risk of catching monkeypox, there are currently no treatments that have been proven to help hasten recovery in those who develop the disease. The UK has over 3,000 confirmed cases of monkeypox. The virus is transmitted chiefly through close contact with an infected person. It typically causes mild symptoms including fever, rash, swollen lymph nodes and pus-filled skin lesions. Severe cases can occur, though people tend to recover within two to four weeks. Siga's drug, branded Tpoxx, has been cleared to treat diseases caused by the family of orthopoxvirus that includes smallpox, monkeypox and cowpox by the European Union and United Kingdom, but due to limited trial data it is generally only used in severe cases in Britain.

Walgreens Boots Alliance has announced the launch of its new clinical trials business that aims to use patient data from its pharmacies to help drive up recruitment in studies conducted by drugmakers. With patient recruitment and enrollment remain key challenges in clinical trials, further exacerbated by the COVID-19 pandemic, the company said it can proactively match diverse patient populations to trials across a range of disease areas based on race, gender, socioeconomic status and location with its patient reach and access to an extensive foundation of pharmacy and patient-authorised clinical data. The Boots owner also believes that by leveraging a tech-enabled approach to patient identification and creating a large registry of clinical trial participants, the company will be able to reduce the time it takes to match eligible patients to clinical trials. "Walgreens trusted community presence across the nation, combined with our enterprise-wide data and health capabilities, enables us to pioneer a comprehensive solution that makes health options, including clinical trials, more accessible, convenient and equitable," said Ramita Tandon, chief clinical trials officer, Walgreens.