This clinical trial is focused on studying a type of breast cancer known as Triple-Negative Breast Cancer (TNBC). This form of cancer is called “triple-negative” because it does not have any of the three common receptors known to fuel most breast cancer growth. The study is testing a new treatment combination of two drugs: Capivasertib and Paclitaxel. Capivasertib is taken as a film-coated tablet, while Paclitaxel is given as an infusion directly into the bloodstream. Some participants will receive a placebo instead of Capivasertib, but all will receive Paclitaxel.
The purpose of the study is to determine how effective the combination of Capivasertib and Paclitaxel is compared to a placebo and Paclitaxel in treating patients with locally advanced or metastatic TNBC. “Locally advanced” means the cancer has spread to nearby tissues or lymph nodes, and “metastatic” means it has spread to other parts of the body. The study will monitor participants over time to see how long they live and how their cancer responds to the treatment.
Participants in the study will be randomly assigned to receive either the Capivasertib and Paclitaxel combination or the placebo and Paclitaxel. The study is designed to be “double-blind,” meaning neither the participants nor the researchers will know who is receiving the actual medication or the placebo. This helps ensure the results are unbiased. The trial will continue until enough data is collected to understand the treatment’s effectiveness and safety. The main goal is to see if the new treatment can help patients live longer and manage their cancer more effectively.



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