Pidnarulex

This phase Ib/II trial tests the safety, side effects, best dose and how well giving CX-5461 works for the treatment of patients with B-cell non-Hodgkin lymphoma. CX-5461 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving CX-5461 may be safe, tolerable and/or effective in treating patients with B-cell non-Hodgkin lymphoma.

This phase I/II trial studies the side effects and best dose of pidnarulex when given together with cemiplimab and to see how well it works in treating patients with microsatellite stable (MSS) colorectal cancer (CRC) that does not respond to treatment (refractory). Pidnarulex may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Immunotherapy with monoclonal antibodies, such as cemiplimab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving pidnarulex with cemiplimab may be safe, tolerable and/or effective in treating patients with refractory MSS CRC.

This phase I trial tests the safety, side effects, and best dose of pidnarulex in combination with trastuzumab deruxtecan in treating patients with breast cancer and other solid tumors that express varying levels of a protein called HER2 and that has spread from where it first started (primary site) to other places in the body (metastatic), that cannot be removed by surgery (unresectable), or that has spread to nearby tissue or lymph nodes (locally advanced). Pidnarulex is an enzyme inhibitor that causes cell death and prevents tumor cell growth. Trastuzumab deruxtecan is in a class of medications called antibody-drug conjugates. It is composed of a monoclonal antibody, called trastuzumab, linked to a chemotherapy drug, called deruxtecan. Trastuzumab attaches to HER2 positive tumor cells in a targeted way and delivers deruxtecan to kill them. Giving pidnarulex in combination with trastuzumab deruxtecan may be safe, tolerable and/or effective in treating patients with metastatic, unresectable, or locally advanced HER2-expressing breast cancer or other solid tumors.