Dust Mites

Credits: Canva

Updated Mar 6, 2025 | 09:00 AM IST

FDA Expands Odactra Approval To Treat House Dust Mite Allergies In Children

SummaryThe US Food and Drug Administration (FDA) has expanded the use of Odactra to include children aged 5 to 11 years. Previously, it was only approved for older patients.

Odactra is an allergy immunotherapy designed to treat allergic rhinitis, also commonly known as hay fever. This is caused by house dust mites. Odactra comes in the form of small tablet that easily dissolves under the tongue, also called sublingual administration and helps the immune system to build tolerance to allergies over time.

With many things new in the US health section, the US Food and Drug Administration (FDA) has expanded the use of Odactra to include children aged 5 to 11 years. Previously, it was only approved for older patients. This expansion provides a new treatment option for the younger patients who are suffering from dust mite-induced allergic rhinitis, with or without conjunctivitis.

Clinical Trial and Its Findings

The FDA's approval came after the phase 3 trial that involved 1,460 children aged 5 to 11 who had persistent allergic rhinitis. Their symptoms were not relieved despite using medications. The key findings from the trial included:

  • Children who received Odactra had 22% reduction in total combined rhinitis scores as compared to the children who received placebo
  • 4 children experienced severe side effects, including oral and ear itchiness, burning or tingling sensation in the mouth, lip swelling, and abdominal pain
  • There were no cases of anaphylaxis or adverse reactions requiring epinephrine were reported

Why Is This Approval So Important?

According to experts, this approval is an important step in the pediatric allergy treatment. Dr Jackie Eghrari-Sabet, who is an allergist and immunologist at George Washington University, told a media outlet that its convenient sublingual administration and its ability to reduce allergy symptoms and medication dependence make it a valuable option for the younger patients.

What Are Dust Mites?

One of the most prevalent pests in your bed is dust mites. We shed over 500 million skin cells every day, giving these minuscule beings an unlimited meal. Dust mites by themselves are not very dangerous, but their droppings can cause eczema, asthma, and allergies, especially in sensitive people. These microscopic intruders feed on the skin cells you lose during the night and flourish in the warmth of your mattress, pillows, and bedding.

Your Beds Are Not Safe

Additionally, bed linens offer dangerous bacteria the ideal environment for growth. According to a 2013 study from the Institut Pasteur de Lille in France, Staphylococcus germs, which are frequently found on human skin, were abundant in filthy hospital bed linens. Some Staphylococcus strains, such as S. aureus, can cause severe skin infections, acne, and even pneumonia, especially in patients with compromised immune systems, even though the majority are benign.

"People carry bacteria as part of their skin microbiome and can shed them in large numbers," says Manal Mohammed, a scientist at the University of Westminster. If these germs get into the body through open wounds, which is more likely to happen in hospitals where patients are more susceptible, they can become harmful. In fact, a 2018 study found that unclean hospital bed linens included E. coli and other dangerous germs that can lead to sepsis, pneumonia, meningitis, and urinary tract infections.

Researchers found in 2022 that when patients with monkeypox (now known as mpox) changed their bed sheets, they dispersed virus particles into the air, potentially increasing the chance of transmission. Certain bacteria cannot be completely eliminated, even by hospital protocols that guarantee linens are cleaned at extremely high temperatures.

Even at high temperatures, the bacterium that causes severe diarrhea, Clostridium difficile, or C. difficile, is difficult to eradicate. However, strict laundry procedures at medical facilities have reduced infection rates.

End of Article
Right Before Approval,  FDA Again Scrutinizes Novavax Covid-19 Vaccine

Credits: Canva

Updated Apr 29, 2025 | 07:00 AM IST

Right Before Approval, FDA Again Scrutinizes Novavax Covid-19 Vaccine

SummaryNovavax is working with the FDA to meet additional requirements and hopes to secure full approval as soon as possible. However, the uncertainty surrounding the approval process highlights the ongoing challenges in navigating the pandemic and the vaccines that are crucial to ending it.

The uncertainty around the Novavax's COVID-19 vaccine has been exacerbated by the Trump administration. The new government has imposed new requirements on the nation's only traditional protein-based vaccine. These new requirements have led to many confusions about vaccine updates, including other vaccines too, which await approval.

The Wait For Full Approval Is Too Long

Novavax is the maker of the protein-based COVID-19 vaccine, which was on track to receive full approval from the US Food and Drug Administration (FDA) by April 1. However, the approval process was paused because of Dr Sara Brenner, the FDA's acting commissioner. The reason for delay has raised many questions about the interference, including political, especially after Dr Peter Marks, FDA's longtime vaccine chief had left following disagreements with Health Secretary Robert F Kennedy Jr. These events have further led to the apprehensions of uncertainty regarding the vaccine's future.

As of now, Novavax's vaccine is only authorized for emergency use. Unlike mRNA vaccines form Pfizer and Moderna, which have full approval, the Novavax vaccine holds the EUA or the Emergency Use Authorization, which allows it to be distributed during public health emergencies. However, once the emergency ends, the FDA can remove these vaccines from market unless full approval is granted.

What Caused The Delay?

The FDA had initially planned to approve Novavax's vaccine by its April 1 target date. However, sources familiar with the situation revealed that Trump appointees influenced the delay. Since then, Novavax has been in discussions with the FDA to determine additional requirements for approval. In the meantime, the FDA's recent comments have fueled concerns that Novavax’s vaccine may be treated as a “new product” due to its updates to match last year’s coronavirus strain. This would require new clinical trials, a process unlikely to be completed before the fall.

ALSO READ: Novavax Says FDA Approval Back on Track for Its COVID Vaccine

This approach to Novavax’s vaccine approval stands in stark contrast to the FDA’s treatment of the mRNA vaccines, where annual strain updates have been handled in a way similar to flu vaccines, requiring only small-scale tests to demonstrate the vaccine’s continued effectiveness against new strains. Dr. Paul Offit, a vaccine expert, argued that it would be unnecessary to treat these annual updates as “new products” requiring full trials, as long as the updated vaccines show that they produce protective antibody levels.

Role Of HHS Secretary

Of course Robert F Kennedy Jr will have a role to play, being the Health Secretary, and a known vaccine skeptic. Despite claiming in recent speeches that he is not anti-vaccine, Kennedy’s past associations with anti-vaccine groups have raised alarms. His nonprofit, Children’s Health Defense, has been involved in campaigns questioning vaccine safety, and Kennedy himself has made public statements suggesting that vaccines can cause autism—a long-debunked claim.

His actions have also contributed to the uncertainty that surrounds the Novavax's approval today and the overall direction of US vaccine policies.

Is Novavax Different From Other Vaccines?

What sets Novavax apart from other COVID-19 vaccines is its traditional approach. While Pfizer and Moderna’s mRNA vaccines use genetic instructions to create a temporary version of the virus’ spike protein, Novavax’s vaccine contains lab-grown copies of the spike protein itself. This approach has been used for decades in vaccines for diseases like hepatitis B and shingles, making it a more familiar method for people who may be hesitant about mRNA vaccines.

End of Article
Novo Nordisk Launches Weight Loss Drug Wegovy In Thailand

Credit: Canva

Updated Apr 29, 2025 | 12:12 AM IST

Novo Nordisk Launches Weight Loss Drug Wegovy In Thailand

SummaryWegovy's launch in Thaliand comes nearly a month after Eli Lilly launched its obesity management drug Mounjaro in India at one-fifth of the US price.

Danish multinational pharmaceutical company Novo Nordisk has launched Wegovy in Thailand, marking the entry of its hugely popular weight loss drug in Southeast Asian market. First launched in 2021, Wegovy helped make Novo Nordisk Europe's most valuable listed company until recently, worth $615 billion at its peak. Wegovy is a semaglutide shot, which means that it is a GLP-1 receptor agonist.

"We actually received the Thai FDA approval already in 2023," said Enrico Canal Bruland, vice president and general manager of Novo's Thai subsidiary. He noted that Novo was making Wegovy available in Thailand ahead of rival Eli Lilly's Zepbound. Wegovy is currently available for prescription in private hospitals around the country and will be available soon in public hospitals. Notably, Bruland declined to provide details on Wegovy's pricing in Thailand, which has a population of around 66 million, or Novo Nordisk's plans for expansion into other Southeast Asian markets.

Notably, the most popular GLP-1 agonist Ozempic was also created by Novo Nordisk. Earlier this month, the pharma giant expanded its research in the field diabetes and weight loss drug and announced that its diabetes pill, Rybelsus, demonstrated cardiovascular benefits in a late-stage trial. The findings pave the way for the medication to become a new treatment option for people living with both diabetes and heart disease.

How Do Semaglutides Work?

Semglutide is the synthetic version of GLP-1—a natural hormone produced in the intestines that regulates blood sugar, appetite, and digestion. Now, every time you eat, your body produces various hormones, including GLP-1. These are called Post nutrition hormones, and help you absorb the energy you just consumed.

GLP-1 travels to your pancreas, prompting it to produce insulin. It also travels to the hypothalamus in your brain, which gives you the feeling of being full or satiated. Ozempic imitates this hormone, thereby, silencing the food chatter in the brain. Interestingly, for some people this food chatter is really quiet ( people with low appetite) and for others it is an outbrurst, (people who generally binge eat.) So with Ozempic, silencing this self-talk in the brain, people tend to lose their appetite and eventually weight.

However, it is important to note that losing weight includes not just fat but muscle as well. Losing too much muscle can lead to reduced strength and a shorter life span. Notably, records show that most people who start taking them stop it at 12 weeks; therefore, it is important for some but not for others.

Notably, last month, US pharma major Eli Lilly launched the obesity management drug Mounjaro in India at one-fifth of the US price. The company rolled out the drug in a single-dose vial following the marketing authorisation from the Central Drugs Standard Control Organization (CDSCO). It has been priced at Rs 3,500 for a 2.5 mg vial and Rs 4,375 for a 5 mg vial. "It is a first-of-its-kind treatment for obesity, overweight, and type 2 diabetes that activates both GIP (glucose-dependent insulinotropic polypeptide) and GLP-1 (glucagon-like peptide-1) hormone receptors," the company said.

End of Article
Why are head injuries so common with anesthesiologists?

Credits: Canva

Updated Apr 28, 2025 | 08:00 AM IST

Boom Strikes: Why Are Cases Of Head Injuries Among Anesthesiologists Growing?

SummaryAnesthesiologists face a rising risk of head injuries in crowded operating rooms. New ASA guidelines aim to make their workspaces safer and prevent serious accidents.

One moment, Dr Cornelius Sullivan was focused on a patient during surgery, and the next moment, he woke up in ambulance, headed to the emergency room.

According to the American Society of Anesthesiologists (ASA), Dr Sullivan had struck his head on a monitor that had been moved behind him in a surgery center. This serious accident had resulted in a two-night hospital stay and kept him away from work for weeks. However, this is not the first time he had suffered a work-related injury. This is, in fact, the third time this has happened, noted ASA.

"Boom Strikes"

These injuries are often called "boom strikes". These occur when anesthesiologists accidentally bump into operating room (OR) equipment that is mounted on fixed or moveable arms. These could be monitors, lights, or screens.

While any OR staff member could be hurt this way, anesthesiologists are particularly more vulnerable to such injuries. Their work requires them to operate in tight, also, often crowded spaces. It also requires them to move quickly during emergencies, which further increases the risk of collision with equipment.

Why The Problem Is Growing?

As per ASA, the risk of boom strikes have been on the rise. This is also because of an increase in sophisticated equipment being added to operating rooms and surgeries are also now performed in much smaller spaces.

As per a survey conducted by the organization, it was found that more than half of anesthesiologists reported experiencing at least one work-related injury, including head injuries. These numbers have highlighted the growing concern over physical safety in an already demanding and high-pressure environment.

Can New Guidelines Improve Safety?

In response to these alarming findings, the ASA has issued a new Statement on Anesthesiologist Head Injuries in Anesthetizing Locations.

The statement formally recognizes boom strikes as a serious occupational hazard and even a potential medical emergency — especially dangerous during outpatient procedures or in cases where no backup anesthesiologist is immediately available to take over patient care.

Dr. Mary Ann Vann, chair of ASA's Ad Hoc Committee on the Physical Demands of Anesthesiologists, also experienced a work-related head injury. Drawing from personal experience, Dr. Vann helped develop the new safety recommendations, aimed at preventing such incidents.

What Have Been The Key Recommendations?

The ASA outlined several measures to reduce the risk of head injuries among anesthesiologists, including:

Holding Regular Safety Meetings: OR teams should meet frequently to discuss safety concerns and review past incidents.

Creating Safety Teams: Special teams should be tasked with reviewing and tracking reports of boom strikes to identify patterns and solutions.

Involving Anesthesia Staff in Room Planning: Clinical anesthesia personnel should have a voice when designing or rearranging procedure rooms to ensure equipment placement considers movement and space needs.

Tracking Head Injuries: Systematic documentation of head injuries can help health systems better understand causes and outcomes, leading to more informed prevention strategies.

The ASA emphasized that head injuries in the OR are not just minor accidents but events that can have serious consequences for patient safety and anesthesiologists’ health.

By implementing the new guidelines and raising awareness, the ASA hopes to make operating rooms safer environments for all medical professionals — and ensure that anesthesiologists can continue their vital work without unnecessary risk.

End of Article