This study is for patients who have advanced cancers, such as head and neck cancer, colorectal cancer, breast cancer, and others. This study is testing a new treatment for these types of cancer. The new test drug is called BCA101. Pembrolizumab is an approved drug by the United States Food and Drug Administration (FDA) for the diseases described in this study and will be used as approved. The type of cancer a patient has will determine whether he/she will get BCA101 alone or BCA101 in combination with pembrolizumab. Participants will receive either BCA101 alone, BCA101 in combination with pembrolizumab or BCA101 and enforafenib, depending on your cancer until the cancer gets worse, they experience bad side effects, or until they withdraw consent, or until the Investigator considers it is in his/her best interest to discontinue the study drug.

This study is for patients who have been diagnosed with head and neck squamous cell carcinoma (HNSCC) that has returned (recurrent) or spread after previous treatment (metastatic). The investigational drug in this study is lenvatinib. The study will also use lenvatinib in combination with pembrolizumab, which is also experimental. The purposes of this study are to: test the safety of the study drugs, lenvatinib alone, pembro and lenvatinib together, and standard chemotherapies alone in the treatment of HNSCC; see how well the combination of pembro and lenvatinib works, compared to standard chemotherapies; and see if participants who get pembro and lenvatinib live longer than those who are treated with standard chemotherapies. Participants can expect to be on this study for about 48 months.

This study is for patients that have been diagnosed with advanced or resistant skin cancer (melanoma), non-melanoma skin cancer (NMSC), non-small cell lung cancer (NSCLC), certain types of solid tumors, or bladder cancer (UBC). The investigational drug in this study is RP1. RP1 is a herpes simplex virus (a microscopic life form commonly known as the "cold sore virus") that has been genetically changed to grow in and destroy cancer cells. This treatment will be injected directly into tumors. The purpose of this study is to test the safety and how well RP1 works when it is injected into certain types of solid tumors in combination with another cancer drug, called nivolumab. Participants can expect to be in this study for about 2 to 3 years.

This is a study that looks at the use of anti-platelet therapy and chemotherapy in patients with recurrent or metastatic squamous cell carcinoma of the head and neck (HNSCC). Anti-platelet therapy is the use of drugs that reduce the blood's ability to form clots. The overall goal of this study is to see if this therapy combination can increase the body's ability to fight the disease.