New wearable sensor tracks vitamin C levels in sweat

A team at the University of California San Diego has developed a wearable, non invasive vitamin C sensor that could provide a new, highly personalized option for users to track their daily nutritional intake and dietary adherence. ...

Team finds effective SARS-CoV-2 neutralizing antibodies

A joint research team led by Sunney Xie, Director of Beijing Advanced Innovation Center for Genomics (ICG) at Peking University (PKU) has successfully identified multiple highly potent neutralizing antibodies against the ...

Researchers discover potential targets for COVID-19 therapy

A team of biochemists and virologists at Goethe University and the Frankfurt University Hospital were able to observe how human cells change upon infection with SARS-CoV-2, the virus causing COVID-19 in people. The scientists ...

COVID-19 puts new science to the pressure test

By its very nature, science rarely offers a quick fix. New technologies and medicines often take years to prove that they are safe and effective. Yet the surging COVID-19 pandemic is forcing scientists to condense this process ...

How Africa has developed its scientific research capabilities

Africa's preparedness for containing the spread of COVID-19 is determined by several factors. So far the focus has been on Africa's weak health systems. But the region's growing scientific competence in virology, genomics ...

A tangled web: Teasing out the effects of CBD on canine seizures

Cannabidiol, popularly known as CBD, gained mainstream fame for treating seizures with a strain of hemp called "Charlotte's Web." It was named for Charlotte Figi, a child with Dravet syndrome whose family was so desperate ...

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Clinical trial

In clinical trials are conducted to allow safety and efficacy data to be collected for new drugs or devices. These trials can only take place once satisfactory information has been gathered on the quality of the product and its non-clinical safety, and Health Authority/Ethics Committee approval is granted in the country where the trial is taking place.

Depending on the type of product and the stage of its development, investigators enroll healthy volunteers and/or patients into small pilot studies initially, followed by larger scale studies in patients that often compare the new product with the currently prescribed treatment. As positive safety and efficacy data are gathered, the number of patients is typically increased. Clinical trials can vary in size from a single center in one country to multicenter trials in multiple countries.

Due to the sizable cost a full series of clinical trials may incur, the burden of paying for all the necessary people and services is usually borne by the sponsor who may be the pharmaceutical or biotechnology company that developed the agent under study. Since the diversity of roles may exceed resources of the sponsor, often a clinical trial is managed by an outsourced partner such as a contract research organization

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