BLADDER CANCER
Bladder cancer is a common form of cancer that is difficult to treat, problematic for the patient and costly for society. When treatment is not optimal, the recurrence rate is high, up to 70-80% after the first surgical treatment. Early bladder cancer has the highest recurrence rate and treatment cost per patient among all cancer types (total cost in Europe: >€4.9 billion). Bladder cancer is also one of the most commonly diagnosed cancers worldwide. According to the latest statistics from the World Cancer Research Fund International, over 614,298 cases of bladder cancer were diagnosed globally in 2022, with a significant proportion being superficial bladder cancer (WCRF International). This cancer is treated with surgery to remove the tumor, followed by chemotherapy or other treatments, depending on the severity of the tumor as determined by the tissue analysis performed during surgery. Around 15% of patients with an initial superficial bladder cancer later develop a more severe, muscle-invasive form that can metastasize (Babjuk, Cancer Central).
ALPHA1H TREATMENT OF BLADDER CANCER
Hamlet BioPharma chose early bladder cancer as the first indication based on studies with HAMLET, which have shown clear effects on this particular type of cancer. There is a great need for new, more effective and safe treatment options for this large and growing patient group. Alpha1H has powerful positive effects in animals with bladder cancer and the clinical study programme has been designed with high precision thanks to the extensive research. In preparation for the clinical trials, Alpha1H has been analyzed for toxicity in detail by external experts and no toxicity has been detected when treating healthy animals.
Part 1 - A randomized, placebo-controlled trial
A randomized, placebo-controlled study of Alpha1H was carried out by a team of doctors at a Hospital in Prague in collaboration with Hamlet BioPharma with good results. Patients did not experience any severe side effects from Alpha1H. The treatment had clear effects on the tumor, which decreased significantly in size.
Cells and pieces of the tumors were detached from the tumor, and analysis of urine samples showed large amounts of cells that had taken up the medicine. The tumor also showed evidence of uptake of Alpha1H and apoptosis, which is a beneficial form of cell death. Advanced molecular analyses also showed interesting and specific responses in tumors treated with Alpha1H, for example that Alpha1H switching off the expression of a large number of different cancer genes, which proved to be an important milestone.
The figure gives an overview of the placebo-controlled study and treatment of bladder cancer with Alpha1H. The images show how Alpha1H is administered and how different effects can be evaluated using clinical techniques and in different patient samples. Patients secrete large amounts of cells, often containing the drug, the tumor shrinks in size and analysis of immune responses provides important information on the effect on tumor tissue.
Successful placebo-controlled study published in Nature Communications >>