This study is testing a new drug called DSB2455 for people with advanced cancers like breast, prostate, ovarian, or pancreatic cancer. The study has two parts: first, they will find a safe dose, then see how well it works. You can join if you are 18 or older, have specific types of cancer, and are able to follow the study rules. You must have a life expectancy of more than 12 weeks and good organ function.

However, you cannot join if you have certain health issues like blood disorders (myelodysplastic syndrome or acute myeloid leukemia), recent cancer treatments, or active infections.

• The study lasts several weeks, requiring regular hospital visits.
• Participants must be willing to undergo medical tests and donate blood samples.
• There may be risks, and participation is voluntary.

If you meet the criteria and are interested, you need to provide consent and be willing to follow the study procedures carefully. This research could help find better treatments for people with advanced cancer.