Create Greater Patient–Value To Excel With Repurposed Covid Brands

Create Greater Patient–Value To Excel With Repurposed Covid Brands 

Regular introduction of new molecules, line extensions or a Novel Drug delivery System (NDDS) has remained the life blood for pharma to rejuvenate a company’s product portfolio for driving organizational growth. But, Covid’s unprecedented and devastating assault on human lives and livelihoods, has pushed many of these initiatives off track. Covid infection was declared pandemic by the World health organization (WHO) on March 11, 2020, compelling the industry to primarily focus on finding solutions for survival, especially in the product development areas.

As the fight against time, the need for survival became so intense, there was no time for pharma companies going back to primary research, to discover new effective Covid specific drug molecules. Vaccines – at the initial stage of the pandemic, were considered by experts could be the only ‘magic bullet’, to get the humanity back again on its feet, after a fierce knockout blow by the virus. As on date, although vaccines seem to be nearer the finishing line of creating adequate initial immunity against Covid, still there are no scientifically proven drugs to predictably cure this infection.

Meanwhile, the focus of all concerned is on the existing drugs, to examine their effectiveness against Covid-19. Accordingly, right from hydroxychloroquine, dexamethasone to a number of already existing antiviral agents were repurposed for Covid treatment, under emergency approval by country regulators, pending detailed clinical trials.

For various critical reasons, experts now feel that the use various NDDS technologies in repurposing existing drugs, would create greater value for patients in Covid treatment. At the same time, this will help pharma companies to create a cutting-edge differentiator for their repurposed brands – being more patient centric. In this article, I shall dwell in this area, starting with the current status and issues with repurposed Covid drugs, as of date.

Current status and issues with repurposed Covid drugs:

According to recent reports, such as one titled ‘Formulation and delivery strategies for COVId-19 drugs,’ published by the AIchE in June 2020, more than 40 different drugs are currently being explored for efficacy against COVID-19. Unfortunately, side effects of many of these repurposed drugs limit their use in most severe cases, besides preventing their use as prophylactics.

A large proportion of repurposed Covid drugs are small-molecule medications, antivirals, and immune-modulating antibodies. These are already approved for other indications (like hydroxychloroquine, ribavirin, favipiravir), or under clinical trials, but not yet approved by the U.S. Food and Drug Administration, FDA (like, remdesivir, galidesivir, leronlimab).

If proven effective, these drugs would offer several advantages from a rapid- response perspective, such as the availability of safety data. In addition, several of these drugs offer broad-spectrum activity that makes it more likely they will remain functional even if the SARS-CoV-2 virus mutates. However, there are also exists some critical issues with repurposed Covid drugs.

Some critical issues with repurposed Covid drugs:

Let me cite below two examples, just to drive home the point of some critical medical issues, now existing with these repurposed Covid drugs:

• Hydroxychloroquine – the malaria drug, when used as directed, commonly produces nausea, diarrhea, vomiting, besides muscle weakness. Importantly, at higher concentrations – only two to three times the daily dose, it can cause potentially fatal acute cardiovascular toxicity. Thus, the possibility of severe side effects makes the drug unattractive as a preventive measure. Drug formulation and delivery strategies, such as controlled release and targeted delivery could expand the use of such existing drugs, the report recommends.

• The HIV drug combination lopinavir and ritonavir, which is under evaluation as a COVID-19 treatment, has side effects that include diarrhea, nausea, and liver damage. With a half-life of about 4–6 hours, the systemic concentrations can vary by a factor of eight between peak and trough. Developing a controlled-release formulation that maintains the minimum effective drug concentration, could mitigate side effects by reducing the steady-state drug concentration by as much as eightfold and reducing the burden on the liver by 81%, the above study, published by the AIchE in June 2020, highlighted.

At this point, for greater clarity, let me recapitulate what NDDS really means.

NDDS – clinical and marketing relevance:

Novel Drug Delivers Systems or NDDS generally ‘refers to the approaches, formulations, technologies, and systems for transporting a pharmaceutical compound in the body as needed to safely achieve its desired therapeutic effects.’...continue reading at https://bit.ly/35UmDiq