A Study Assessing Adverse Event and How Oral ABBV-453 Moves Through the Body in Adult Participants With Relapsed or Refractory (R/R) Chronic Lymphocytic Leukemia (CLL)/Small Lymphocytic Lymphoma (SLL)

Royal Prince Alfred Hospital /ID# 263129, Sydney

Austin Health /ID# 256776, Heidelberg

Gold coast University Hospital /ID# 255785, Southport

Royal Perth Hospital /ID# 256464, Perth

Charite Universitaetsmedizin Berlin - Campus Benjamin Franklin /ID# 263433, Berlin

IRCCS Ospedale San Raffaele /ID# 263064, Milan

Universitaetsklinikum Hamburg-Eppendorf /ID# 263730, Hamburg

Universitaetsklinikum Schleswig-Holstein - Campus Kiel /ID# 263150, Kiel

IRCCS AOU di Bologna Policlinico Sant Orsola Malpighi /ID# 263065, Bologna

Intermountain Health St. Vincent Regional Hospital - Cancer Centers of Montana /ID# 264622, Billings

Yitzhak Shamir Medical Center /ID# 257626, Ẕerifin

MD Anderson Cancer Center /ID# 253713, Houston

Universitaetsklinikum Ulm /ID# 263148, Ulm

City of Hope /ID# 253904, Duarte

Hadassah Medical Center-Hebrew University /ID# 254721, Jerusalem

City of Hope Orange County Lennar Foundation Cancer Center /ID# 267158, Irvine

The Chaim Sheba Medical Center /ID# 254383, Ramat Gan

Atrium Health /ID# 265136, Charlotte

Duke Cancer Center /ID# 258707, Durham

Universitaetsklinikum Halle (Saale) /ID# 263299, Halle

Azienda Ospedaliera di Perugia - Ospedale S. Maria della Misericordia /ID# 263062, Perugia