thebiostories

Can Hepatitis B Finally Be Cured? How an antisense drug moved from an experimental molecule to successful Phase 3 trials. ⏱ In 30 Seconds ✓ Bepirovirsen is an antisense oligonucleotide designed to target hepatitis B virus (HBV) RNA. ✓ In two Phase 3 trials, functional cure was achieved in 20% and 19% of treated participants, compared with 0% in placebo groups. ✓ Bepirovirsen is now under regulatory review, although questions remain about how many patients will benefit and its safety profile . Chronic hepatitis B can be effectively controlled with antiviral drugs such as tenofovir and entecavir, which suppress HBV replication and substantially reduce the risk of liver disease. However, these treatments rarely produce a functional cure, and many patients require long-term therapy. Bepirovirsen is an antisense oligonucleotide that targets HBV RNA, with the aim of reducing both viral replication and the production of viral proteins. In 2026, two large Phas...

The Personalized Cancer Vaccine That Just Succeeded in Phase 3 One Patient at a Time: How Merck and Moderna turned a patient’s own tumour mutations into an individualized mRNA therapy — and took it through a successful Phase 3 trial. ⏱ In 30 Seconds ✓ Intismeran autogene is made individually from mutations identified in each patient’s tumour. ✓ Its mRNA can encode up to 34 patient-specific neoantigens to help generate tumour-specific T-cell responses. ✓ Combined with pembrolizumab (Keytruda), it has now met the primary endpoint in a large Phase 3 melanoma trial . ✓ The full Phase 3 effect size and overall-survival results have not yet been reported. The trial was designed to follow patients for years, but on August 19, 2026, Merck and Moderna announced that a prespecified interim analysis had already provided an important answer. Their individualized mRNA cancer treatment, intismeran autogene , combined with pembrolizumab (Keytruda), had met the primary endpo...

What Is the Most Common Virus That Causes Cancer? HPV causes more cancers worldwide than any other virus — but it is only one of several infections capable of contributing to human cancer. Cancer is usually thought of as a disease of damaged genes. But sometimes the chain of events that leads to cancer begins with something entirely different: an infection. Most familiar viral infections are not associated with cancer. The viruses that cause the common cold, influenza viruses and coronaviruses such as SARS-CoV-2 are not established cancer-causing viruses. But a small group of viruses can, under the right circumstances and often over many years, contribute to the development of cancer. Among them, HPV is responsible for the largest number of cancer cases worldwide. According to the International Agency for Research on Cancer (IARC), almost 750,000 new cancer cases worldwide in 2020 were attributable to HPV infection. HPV is not alone. Hepatitis B and C viruses can cause li...

The Man With the Golden Arm: How James Harrison’s Blood Helped Protect 2.4 Million Babies He survived because strangers donated blood. Then he spent more than 60 years giving his own to protect generations of Australian babies. ⏱ In 30 Seconds ✓ James Harrison donated blood and plasma 1,173 times over more than 60 years. ✓ His plasma contained valuable anti-D antibodies used to help prevent haemolytic disease of the fetus and newborn. ✓ Lifeblood credits his extraordinary donations with contributing to anti-D protection for millions of Australian babies. ✓ Today, researchers at WEHI and Australian Red Cross Lifeblood are working to reproduce anti-RhD antibodies in the laboratory, reducing future dependence on rare donors. James Harrison spent more than 60 years giving something extraordinary to people he would never meet: his blood . Australian Red Cross Lifeblood estimates that his donations helped protect around 2.4 million babies . ...

Jian Zhou: The Scientist Who Helped Make the HPV Vaccine Possible He lived long enough to see the vaccine reach clinical trials — but not long enough to see how far it would eventually go. ⏱ In 30 Seconds ✓ Jian Zhou was a Chinese-born virologist who worked with Ian Frazer, Xiao-Yi Sun and colleagues on research that helped make HPV vaccination possible. ✓ In 1991, Zhou was first author of a landmark study showing that HPV16 capsid proteins could assemble into virus-like particles (VLPs) , a crucial principle behind modern HPV vaccines. ✓ Zhou died unexpectedly in 1999 at just 42 years old , when vaccine development based on the research had already reached clinical trials. ✓ He never saw HPV vaccines become a global cancer-prevention tool. Ian Frazer later described Zhou as an “equal partner” in much of the HPV vaccine development work. In 2006, one of the most remarkable ideas in cancer prevention became a medical reality. A vaccine against human papillomavirus (...