A Study to Assess the Adverse Events, Change in Disease Activity, and How Oral ABBV-711 Tablets Move Through the Body as a Monotherapy and in Combination With Intravenously Infused Budigalimab (ABBV-181), in Adults With Advanced Squamous Tumors

City Of Hope Comprehensive Cancer Center /ID# 276550, Duarte, California, United States

City of Hope - Orange County Lennar Foundation Cancer Center /ID# 278432, Irvine, California, United States

University of Chicago Medical Center /ID# 276638, Chicago, Illinois, United States

START Midwest /ID# 272505, Grand Rapids, Michigan, United States

Carolina BioOncology Institute /ID# 272380, Huntersville, North Carolina, United States

Next Oncology - Irving /ID# 276659, Irving, Texas, United States

Princess Margaret Cancer Centre /ID# 276852, Toronto, Ontario, Canada

The Chaim Sheba Medical Center /ID# 276798, Ramat Gan, Tel Aviv, Israel

Rambam Health Care Campus- Haifa /ID# 276799, Haifa, Israel

Hadassah Medical Center-Hebrew University /ID# 276800, Jerusalem, Israel

National Cancer Center Hospital East /ID# 276585, Kashiwa-shi, Chiba, Japan

Kansai Medical University Hospital /ID# 276586, Hirakata-shi, Osaka, Japan