Study to Assess Change in Disease Activity of Oral Venetoclax in Adult Participants With Recurring Relapsed or Refractory (R/R) Waldenström Macroglobulinemia (WM)/Lymphoplasmacytic Lymphoma (LPL)

Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital /ID# 279178, Nagoya, Aichi-ken, Japan

Nagoya City University Hospital /ID# 277580, Nagoya, Aichi-ken, Japan

University of Fukui Hospital /ID# 279173, Yoshida-gun, Fukui, Japan

Kyushu University Hospital /ID# 277582, Fukuoka, Fukuoka, Japan

Gunma University Hospital /ID# 277576, Maebashi, Gunma, Japan

Hiroshima University Hospital /ID# 279172, Hiroshima, Hiroshima, Japan

NHO Mito Medical Center /ID# 279175, Higashiibaraki-gun, Ibaraki, Japan

University Hospital Kyoto Prefectural University of Medicine /ID# 277584, Kyoto, Kyoto, Japan

Kindai University Hospital /ID# 277587, Sakai-shi, Osaka, Japan

The University of Tokyo Hospital /ID# 279174, Bunkyo-ku, Tokyo, Japan

National Cancer Center Hospital /ID# 279076, Chuo-Ku, Tokyo, Japan

The Cancer Institute Hospital Of JFCR /ID# 277579, Koto-ku, Tokyo, Japan

Japanese Red Cross Medical Center /ID# 277577, Shibuya-ku, Tokyo, Japan

National Hospital Organization Disaster Medical Center /ID# 277741, Tachikawa, Tokyo, Japan

University of Yamanashi Hospital /ID# 279179, Chuo-shi, Yamanashi, Japan

Chiba Cancer Center /ID# 279177, Chiba, Japan

Nagano Red Cross Hospital /ID# 279774, Nagano, Japan