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FDA Approves First Topical Gene Therapy for Treatment of Wounds in Patients with Dystrophic Epidermolysis Bullosa

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Today, the U.S. Food and Drug Administration approved Vyjuvek, a herpes-simplex virus type 1 (HSV-1) vector-based gene therapy, for the treatment of wounds in patients 6 months of age and older with dystrophic epidermolysis bullosa (DEB) with mutation(s) in the collagen type VII alpha 1 chain (COL7A1) gene. 

“Vyjuvek is the first FDA-approved gene therapy treatment for DEB, a rare and serious genetic skin disorder,” said Peter Marks, M.D., Ph.D., director of the FDA’s Center for Biologics Evaluation and Research. “Today’s action demonstrates the FDA’s ongoing commitment to supporting the development and evaluation of new treatments that address unmet needs for rare diseases or conditions.”

DEB is a genetic disorder that affects the connective tissue in the skin and nails and results from mutation(s) in the COL7A1 gene. This gene encodes type VII collagen (COL7), which is an essential protein that helps strengthen and stabilize the outer and middle layers of the skin. When COL7A1 is deficient, skin layers can separate, causing painful and debilitating blisters and wounds. DEB usually presents itself at birth and is divided into two major types depending on the inheritance pattern: recessive dystrophic epidermolysis bullosa (RDEB) and dominant dystrophic epidermolysis bullosa (DDEB).

Symptoms can vary widely among affected people. Individuals with DDEB typically have mild cases with blistering primarily affecting the hands, feet, knees, and elbows. RDEB cases can be painful and debilitating, often involving widespread blistering that can lead to vision loss, disfigurement, and other serious medical complications, which could be fatal.

Vyjuvek is a genetically modified (engineered in a laboratory) herpes-simplex virus used to deliver normal copies of the COL7A1 gene to the wounds. COL7 molecules arrange themselves into long, thin bundles that form anchoring fibrils that hold the epidermis (skin) and dermis together, which is essential for maintaining the integrity of the skin. Vyjuvek has also been modified to eliminate its ability to replicate in normal cells. Vyjuvek is mixed into an excipient (non-active ingredient) gel prior to topical application. A healthcare professional evenly applies Vyjuvek gel in droplets to a patient’s wounds once a week.  

The safety and effectiveness of Vyjuvek was established primarily in a randomized, double-blinded, placebo-controlled study involving a total of 31 subjects with DEB, including 30 subjects with RDEB and one subject with DDEB. In the study, two DEB wounds of comparable size on each patient were identified and randomized to receive either topical administration of Vyjuvek or the placebo on a weekly basis. The age of the subjects ranged from 1 year to 44 years (mean age 17 years). Efficacy was established by improved wound healing, defined as the difference in the proportion of confirmed complete (100%) wound closure between the Vyjuvek-treated and the placebo-treated wounds at 24 weeks. Sixty-five percent of the Vyjuvek-treated wounds completely closed while only 26% of the placebo-treated wound completely closed. 

In addition, in a different clinical study, two young patients with RDEB (6 and 7 months of age, respectively) received topical Vyjuvek weekly without any new safety findings. 

The most common adverse reactions associated with Vyjuvek included itching, chills, redness, rash, cough and runny nose.

Patients or caregivers should take the following precautions during treatment with Vyjuvek:

  • Avoid direct contact with treated wounds (e.g., touching and scratching) and dressings of treated wounds for approximately 24 hours following Vyjuvek application. In the event of accidental exposure, patients and exposed individuals should clean the affected area.
  • Wash hands and wear protective gloves when changing wound dressings.
  • Disinfect bandages from the first dressing change following Vyjuvek treatment with a virucidal agent, such as 70% isopropyl alcohol, 6% hydrogen peroxide, or <0.4% ammonium chloride, and dispose of the disinfected bandages in a separate sealed plastic bag in household waste. Dispose of the subsequent used dressings and cleaning materials into a sealed plastic bag and dispose in household waste.

This application received Orphan Drug and Fast Track designations. Vyjuvek also received Regenerative Medicine Advanced Therapy and Priority Review designations and a Rare Pediatric Disease Priority Review Voucher. The FDA’s rare pediatric disease priority review voucher program is intended to encourage development of new drugs and biologics to prevent and/or treat rare diseases in children. 

The approval of Vyjuvek was granted to Krystal Biotech, Inc.

Source: FDA

FDA CDC News

FDA Approves First Therapy for Rare Type of Non-Cancerous Tumors

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Today, the U.S. Food and Drug Administration approved Ogsiveo (nirogacestat) tablets for adult patients with progressing desmoid tumors who require systemic treatment. Ogsiveo is the first drug to be approved for the treatment of patients with desmoid tumors, a rare subtype of soft tissue sarcomas.

Desmoid tumors are non-cancerous but can be locally aggressive. The tumors may invade into surrounding structures and organs, resulting in pain, issues with being able to move, and decreased quality of life. Although surgical removal has historically been the treatment of choice, there is a high risk that the tumor will return or that other health challenges will occur after removal; therefore, systemic therapies (cancer treatment targeting the entire body) are being increasingly evaluated in clinical trials. 

“The FDA continues to address unmet medical need and advance the development of safe and effective therapies for the millions of Americans whose lives are affected by rare tumors,” said Richard Pazdur, M.D., director of the FDA’s Oncology Center of Excellence and acting director of the Office of Oncologic Diseases in the FDA’s Center for Drug Evaluation and Research. “Desmoid tumors are rare tumors that can lead to severe pain and disability. Today’s approval will offer the first approved treatment option for patients beyond surgery and radiation.”

The effectiveness of Ogsiveo was evaluated in an international, multicenter, randomized, double-blind, placebo-controlled trial in 142 adult patients with progressing desmoid tumors not amenable to surgery. Patients were randomized to receive 150 milligrams (mg) of Ogsiveo or placebo orally, twice daily, until disease progression or unacceptable toxicity. The main efficacy outcome measure was progression-free survival (the length of time after the start of treatment for which a person is alive and their cancer does not grow or spread). Objective response rate (a measure of tumor shrinkage) was an additional efficacy outcome measure. 

The pivotal clinical trial demonstrated that Ogsiveo provided clinically meaningful and statistically significant improvement in progression-free survival compared to placebo. Additionally, the objective response rate was also statistically different between the two arms with a response rate of 41% in the Ogsiveo arm and 8% in the placebo arm. The progression-free survival results were also supported by an assessment of patient-reported pain favoring the Ogsiveo arm. 

The most common side effects seen in at least 15% of the patients in the trial were diarrhea, ovarian toxicity, rash, nausea, fatigue, stomatitis, headache, abdominal pain, cough, alopecia, upper respiratory tract infection and dyspnea. 

Ogsiveo was granted Priority Review under which the FDA’s goal is to take action on an application within six months where the agency determines that the drug, if approved, would significantly improve the safety or effectiveness of treating, diagnosing or preventing a serious condition compared to available therapies. Ogsiveo also received FDA Fast Track and Breakthrough Therapy designations for the indication noted above, as well as Orphan-Drug designation for treatment of desmoid tumor (aggressive fibromatosis). Orphan-drug designation provides incentives to assist and encourage drug development for rare diseases.

The FDA granted the approval of Ogsiveo to SpringWorks Therapeutics Inc.

Source: FDA

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Salmonella Outbreak: Cantaloupe Recall Investigation

Salmonella outbreak: Cantaloupes recalled. Ongoing investigation. Stay informed for updates on the recall.

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In recent weeks, an outbreak of Salmonella linked to cantaloupes has raised concerns across the United States and parts of Canada. The outbreak, which began in early November 2023, has resulted in numerous cases of illness reported from various states. Health authorities, including the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA), are diligently investigating this outbreak to identify the source of contamination and prevent further illnesses. This blog post aims to provide an overview of the outbreak investigation, affected products and stores, symptoms of Salmonella infection, and recommendations for consumers and businesses.

The Outbreak:
On November 22, 2023, Crown Jewels Produce, Sofia Produce, and CF Dallas initiated a recall of fresh cantaloupes and related products due to potential Salmonella contamination. As of November 24, CDC reported a total of 99 cases from 32 states, with the latest onset date being November 10, 2023. The investigation is still ongoing, as authorities are working to determine if additional products are linked to the illnesses. The FDA will provide updates on this situation as more information becomes available.

Affected Products and Stores:
The following brands of whole fresh cantaloupes have been recalled:

  • Cantaloupes labeled “Malichita” or “Rudy,” with the numbers “4050” and “Product of Mexico/produit du Mexique.”
  • These cantaloupes were sold in retail stores located in Arizona, California, Maryland, New Jersey, Tennessee, Illinois, Indiana, Kentucky, Michigan, Ohio, Oklahoma, Wisconsin, Texas, Florida, and Canada. It is important to note that this list may not include all states, as the cantaloupes could have reached consumers through further retail distribution.

Recalled cut cantaloupe and products made from the recalled whole cantaloupes include:

  • ALDI’s cantaloupe, cut cantaloupe, and pineapple spears in clamshell packaging with Best-by dates between October 27 and October 31.
  • Vinyard’s cantaloupe chunks and cubes, fruit mixes, melon medleys, and fruit cups containing cantaloupe. Most of these products have a “Vinyard” label, and some have a red label with “Fresh” sold between October 30 and November 10 in Oklahoma stores.
  • Freshness Guaranteed seasonal blend, melon trio, melon mix, fruit blend, fruit bowl, seasonal fruit tray, fruit mix, and cantaloupe chunks. RaceTrac fruit medley sold in clear square or round plastic containers at select retail stores in Indiana, Michigan, Ohio, Kentucky, North Carolina, Tennessee, Virginia, Illinois, Texas, and Louisiana.

Symptoms of Salmonella Infection:
Salmonella infection typically manifests within 12 to 72 hours after consuming contaminated food and typically lasts for four to seven days. Common symptoms include diarrhea, fever, and abdominal cramps. It is important to note that severe infections are more likely to occur in children younger than five, the elderly, and individuals with weakened immune systems.

Status and Recommendations:
The investigation into the cantaloupe-related Salmonella outbreak is still ongoing. Authorities will continue to provide updates as new information becomes available. In the meantime, the following recommendations are crucial:

  • Consumers, restaurants, retailers, and wholesalers should refrain from consuming, selling, or serving recalled cantaloupes or products containing cantaloupe.
  • Those who have frozen cantaloupes for later use should check their freezers and discard any recalled fresh or cut cantaloupes.
  • If you are unsure whether your cantaloupe is part of the recall, it is best to err on the side of caution and dispose of it.
  • Retailers and wholesalers who received recalled whole melons should identify the boxes labeled “Malachita/Z Farms” or “Malichita” or “Rudy” from Crown Jewels Produce and Sofia Produce (TruFresh) and remove them from their inventory.
  • It is crucial to follow FDA’s safe handling and cleaning advice, ensuring that any surfaces and containers that may have come in contact with the recalled products are thoroughly cleaned and sanitized to prevent cross-contamination.
  • If you suspect you may be experiencing symptoms of a Salmonella infection after consuming recalled cantaloupes, it is essential to seek medical attention promptly.

The outbreak investigation of Salmonella linked to cantaloupes is a matter of concern, and authorities are actively working to protect public health. By staying informed, following the recommendations, and taking necessary precautions, we can collectively mitigate the risks associated with this outbreak. Stay tuned for updates and adhere to the guidance provided by health authorities to ensure the safety of yourself and your loved ones.

https://www.fda.gov/food/outbreaks-foodborne-illness/outbreak-investigation-salmonella-cantaloupes-november-2023

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FDA CDC News

FDA Expands Cinnamon Applesauce Recall: Lead Contamination Concerns

FDA expands recall of cinnamon applesauce pouches due to lead contamination. Illnesses potentially linked to recalled product reported. Investigation ongoing.

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FDA Advises Parents and Caregivers Not to Buy or Feed WanaBana Apple Cinnamon Fruit Puree Pouches to Toddlers and Young Children Because of Elevated Lead Levels

In a recent development, the Food and Drug Administration (FDA) has issued an updated advisory regarding the investigation of elevated lead levels in cinnamon applesauce pouches. This update includes an expanded recall from WanaBana LLC, now encompassing Weis and Schnucks-brand cinnamon applesauce pouches. The move comes in response to growing concerns over potential health risks associated with lead contamination in these products.

Emerging Health Concerns:
As of November 13, 2023, the FDA has received 22 reports of illnesses that may be connected to the recalled cinnamon applesauce pouches. In light of this, the FDA is diligently assessing incoming adverse reports of related illnesses. Their investigation is ongoing, with a primary focus on identifying the source of lead contamination and determining whether additional products are also linked to these reported illnesses.



The FDA’s Commitment:
To ensure public safety, the FDA will continue to update this advisory as new information becomes available. This demonstrates their dedication to protecting consumers and their commitment to swift action when potential health risks are identified.

The expanded recall of cinnamon applesauce pouches serves as a stark reminder of the importance of rigorous product safety measures. It is crucial for consumers to stay informed and heed the FDA’s recommendations regarding recalled products. By working together, government agencies, manufacturers, and consumers can help maintain the highest standards of food safety, ultimately safeguarding the well-being of individuals and families across the nation. https://www.fda.gov/food/alerts-advisories-safety-information/fda-advises-parents-and-caregivers-not-buy-or-feed-wanabana-apple-cinnamon-fruit-puree-pouches?utm_medium=email&utm_source=govdelivery

Additional Information 

https://stmdailynews.com/category/food-and-beverage/

https://stmdailynews.com/category/lifestyle/health-and-wellness/fda-cdc-news/

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