Next Phase of Human Clinical Trials for Revolutionary Sepsis Treatment Commences

Scientists have developed a promising treatment for sepsis, and clinical trials using sodium ascorbate, a vitamin C preparation, have shown effective results. The treatment has progressed into extensive clinical trials across Australia and demonstrated significant improvements in sepsis patients, including improved kidney function and reduced dependence on other drugs. This breakthrough, the result of decades of research, brings hope to a disease that is the leading cause of death in intensive care units around the world.

Flory Institute researchers, in collaboration with hospital intensivists, have demonstrated that sodium ascorbate, a pH-balanced formulation of vitamin C, is effective in treating sepsis.

Researchers at the Florey Institute have demonstrated that the formulation they have developed reduces deadly sepsis, and the next phase of clinical trials is set to begin across Australia next month.

Promising results from early clinical trial conducted at Melbourne’s Austin Hospital published in journal Critical carehave shown that sodium ascorbate, a pH-balanced formulation of vitamin C, is effective in treating sepsis.

Lead researcher Associate Professor Yugish Lankadeva said sepsis is notoriously difficult to treat and is often fatal.

LR Florey Professor Clive May, Austin Health Intensivist Professor Rinaldo Bellomo and Florey Associate Professor Yugish Rankadeva discovered that sodium ascorbate can be used to treat sepsis.Credit: Flory

Challenges in sepsis treatment

“Sepsis accounts for 35 to 50 percent of all hospital deaths. It is when the immune system is unable to fight the underlying infection, causing a life-threatening drop in blood pressure, multiple organ failure, and death. ,” said Associate Professor Lankadeva. In our clinical trial at Austin Hospital, sodium ascorbate was administered into patients’ bloodstreams, resulting in promising improvements in multiple organs. ”

Associate Professor Lankadeva, Florey’s research director for Systems Neuroscience, said of the next steps: $4.9 million government-funded research project Delivered in intensive care units in Adelaide, Melbourne, Perth, Brisbane, Alice Springs and Sydney.

“We will recruit 300 adult sepsis patients who will receive either our formulation or a placebo in addition to their usual hospital care. These results will provide additional data to determine the efficacy of the formulation. It will help in collection,” said Associate Professor Lankadeva.

Flory scientists have created a special formulation of sodium ascorbate to treat sepsis.Credit: Flory

Insights into previous trials

Professor Rinaldo Bellomo, director of intensive care research at Austin Hospital, said the first part of the trial at his department involved 30 adult sepsis patients between October 2020 and November 2022.

While in intensive care in the hospital, half of the patients were randomly assigned to receive sodium ascorbate, and the other half received a placebo.

This study found that patients with sepsis treated with sodium ascorbate:

  • Signs that more urine is produced and kidney function has improved
  • Less need for noradrenaline, a drug used clinically to restore blood pressure
  • He showed signs of improved function in multiple organs.

“Sepsis is the number one cause of death in intensive care units in Australia and around the world,” Professor Bellomo said. “In many cases, the disease progresses so rapidly that by the time patients reach us, they are already seriously ill. It will be a huge change.”

Decades of research bear fruit

Professor Clive May, Florey Senior Research Fellow on the project, has been researching how sepsis causes organ failure, particularly damage to the brain and kidneys, for more than 20 years.

“By showing decreased oxygen levels in the tissues of sepsis, we found that sodium ascorbate was a possible treatment.

“We have seen dramatic results in preclinical studies, where extremely high doses of sodium ascorbate caused complete recovery within just three hours with no side effects. It’s heartening to see that it’s paying off and bringing treatments into the hands of patients,” said Professor Clive May.

Surviving sepsis: The patient’s perspective

Longtime Flory staffer Brett Purcell serves as the consumer representative for the MEGASCORES research program, providing a valuable perspective from sepsis survivors.

“In 2011 I was taken to the hospital by ambulance with high fever and delirium. I was suffering from the early stages of sepsis. My condition gradually worsened and I was transferred to a larger hospital after 12 days. By that time My heart was severely infected and I was in septic shock. Six months ago I had a successful aortic valve replacement. Unfortunately the valve was infected.

“The surgical team repaired the damage in a six-hour operation, but my condition deteriorated to critical condition. I was told it would be an hour. It was the good decision-making of the surgical team and ICU intensivist that saved me. I was put on life support with an ECMO machine and dialysis, and my symptoms rapidly worsened. Improved.

“After almost eight weeks in the hospital, I’m home. I’m really lucky to be alive and hope this new research using sodium ascorbate is less invasive, faster, and extremely effective in fighting sepsis.” We hope to provide hospitals with a new and effective life-saving tool.”

Reference: “Ultra-dose sodium ascorbate: pilot, single-dose, physiological effects, double-blind, randomized, controlled trial” Fumitaka Yanase, Sofia Spano, Akinori Maeda, Anis Chaba, Thummaporn Naorungroj, Connie Pei Chen Ow , Yugeesh R. Rankadeva, Clive N. May, Ashenafi H. Betley, Darius JR Lane, Glenn M. Eastwood, Mark P. Plummer, Rinaldo Bellomo, October 12, 2023. Critical care.
DOI: 10.1186/s13054-023-04644-x

Source: scitechdaily.com

Revolutionary New Technology Accelerates Diaper Recycling by 200 Times

The superabsorber becomes a liquid under ultraviolet light after absorbing enough water. It can then be reused. Credit: Ken Pekarsky, KIT

Water and UV light effectively and quickly break down the cross-linked polymers in diaper liners without the use of any chemicals. This process allows recycled plastic molecules to be reused for a variety of uses.

Superabsorbent materials such as sodium polyacrylate are important components of a variety of hygiene and medical products, including diapers, bandages, and dressings. These cross-linked polymers are typically insoluble in water, although they are known for their high absorbency. Recycling them traditionally required the use of strong acids.

It will not melt at high temperatures, it will only deteriorate. However, the acid “breaks” the chains and stabilizes the polymer after about 16 hours at 80 degrees. Celsius Therefore, recycling is now possible. Because this process is complex and expensive, superabsorbents are rarely recycled. Approximately 2 million tons of this waste is thrown away or incinerated each year.

Turns into liquid in 5 minutes instead of 16 hours

Researchers from KIT’s Institute of Biochemical Systems, Institute of Biointerfaces, and Institute of Chemical Technology and Polymer Chemistry have discovered that crosslinked sodium polyacrylate polymers degrade under ultraviolet light after uptake of water. .

“The chains that connect the polymers are broken by light, and they are so loose that they swim underwater and turn into liquid fibers,” explains Pavel Levkin, a professor at the Institute of Biochemical Systems. For the study, researchers cut liners from traditional diapers, wetted them with water and exposed them to a 1000 W lamp. After 5 minutes, the solid material turned into a liquid and fell into the collector. “This method using ultraviolet light is about 200 times faster than using acids,” Revkin says.

Recycled polymers can be used in a variety of ways

The team then used known processes to convert the liquid into new adhesives and dyes. “The observation that this substance is soluble and processable was very important. It could probably be turned into many other products,” explains the scientist.

In the test, the researchers used clean diapers. However, it is also possible to separate superabsorbents from used diapers. “Therefore, there is no reason why a near-realistic use should not be possible,” Revkin says. By using solar power, you can optimize recycling methods that are cost-effective and environmentally friendly. “We have discovered a promising strategy to recycle superabsorbents, which significantly reduces environmental pollution and contributes to a more sustainable use of polymers.”

Reference: “From diapers to thickeners and pressure-sensitive adhesives: recycling superabsorbents by UV degradation” by Shuai Li, Johannes M. Scheiger, Zhenwu Wang, Birgit Huber, Maxi Hoffmann, Manfred Wilhelm, Pavel A. Levkin , September 7, 2023 ACS Applied Materials & Interfaces.
DOI: 10.1021/acsami.3c06999

Source: scitechdaily.com