Patients with impaired decision-making capacity are eligible as long as their neurological or psychological condition does not preclude their safe participation in the study (e.g., tracking pill consumption and reporting adverse events to the investigator) Any medical or other condition which, in the opinion of the investigator, would preclude participation in a clinical trial Patient has any other medical, psychiatric, or social condition, including substance abuse, that in the opinion of the investigator would preclude compliance with the requirements of this study Patients with any other medical condition or laboratory value that would, at the discretion of the investigator, preclude the patient from participation in this clinical study Any medical or other condition which, in the opinion of the investigator, would preclude participation in a clinical trial Any other condition which, in the opinion of the investigator, would preclude participation in this trial Have serious preexisting medical conditions that, in the judgment of the investigator, would preclude participation in this study (for example, history of major surgical resection involving the stomach or small bowel). Any electrocardiogram (ECG) abnormality, which in the opinion of the Investigator would preclude safe participation in the study. Any medical or other condition that in the opinion of the investigator(s) would preclude the participant's participation in a clinical study Any condition that in the opinion of the investigator, would preclude participation in this study Any medical conditions that, in the opinion of the investigator, would preclude use of AGEN1884, including AGEN1884 hypersensitivity. Any other serious medical condition which in the Investigator's opinion would preclude safe participation in the study. Medical or psychiatric illness that would, in the opinion of the investigator, preclude participation in the study or the ability of patients to provide informed consent for themselves In the opinion of the principal investigator (PI), the participant has a condition that will preclude them from complying with study treatment Any condition which, in the opinion of the investigator, would preclude participation in this trial Any medical, psychological or social condition that in the opinion of the investigator, would preclude participation in this study. Any other health condition that would preclude participation in the study in the judgment of the principal investigator Other medical or psychiatric conditions that in the opinion of the investigator would preclude safe participation in the protocol No other condition which, in the opinion of the Investigator, would preclude participation in this trial Any condition which, in the opinion of the investigator, would preclude participation in this trial Have a serious preexisting medical condition that, in the opinion of the investigator would preclude participation in the study (for example a GI disorder causing clinically significant symptoms such as nausea, vomiting, and diarrhea, or malabsorption syndrome) or that would result in a life expectancy of less than 1 year Any condition that in the opinion of the investigator, would preclude participation in this study Any condition which, in the opinion of the investigator, would preclude participation in this trial Any medical or other condition that, in the opinion of the investigator, would preclude the subject's participation in a clinical study Any electrocardiogram (ECG) abnormality that in the opinion of the principal investigator would preclude safe participation in the study Any medical or other condition that in the opinion of the investigator(s) would preclude the participant's participation in a clinical study. Patients with psychosocial circumstances or illnesses that preclude protocol participation (to be determined by P.I.) Patients with a medical condition or social situation that at the discretion of the Principal Investigator (PI) would preclude them from completion of the trial No other medical condition or reason that, in the opinion of the investigator, would preclude study participation Patients with psychosocial circumstances or illnesses that preclude protocol participation (to be determined by PI) Co-morbid illnesses that preclude protocol participation (to be determined by PI) Any condition which, in the opinion of the investigator, would preclude participation in this trial RENAL & BLADDER: Any condition that in the opinion of the investigator, would preclude participation in this study Other medical or psychiatric conditions that in the opinion of the investigator would preclude safe participation in the protocol Any condition that in the opinion of the investigator, would preclude participation in this study Medical or psychiatric illness that would, in the opinion of the investigator, preclude participation in the study or the ability of patients to provide informed consent for themselves Patients with impaired decision-making capacity are eligible as long as their neurological or psychological condition does not preclude their safe participation in the study (e.g., tracking pill consumption and reporting adverse events to the investigator) Medical or psychiatric illness that would, in the opinion of the investigator, preclude participation in the study or the ability of patients to provide informed consent for themselves Patients with impaired decision-making capacity are eligible as long as their neurological or psychological condition does not preclude their safe participation in the study (e.g., tracking pill consumption and reporting adverse events to the investigator) Patients with impaired decision-making capacity are eligible as long as their neurological or psychological condition does not preclude their safe participation in the study (e.g., tracking pill consumption and reporting adverse events to the investigator) Medical or psychiatric illness that would, in the opinion of the investigator, preclude participation in the study or the ability of patients to provide informed consent for themselves Subject with any other condition which in the opinion of the investigator would preclude participation in the study. have serious preexisting medical conditions that, in the judgment of the investigator, would preclude participation in this study Serious illness other than cancer that would preclude safe participation in the study. Medical or psychiatric illness or social situations that would, in the opinion of the investigator, preclude participation in the study or the ability of patients to provide informed consent for themselves Any condition that would preclude the ability to deliver appropriate IP therapy Patients with impaired decision-making capacity are eligible as long as their neurological or psychological condition does not preclude their safe participation in the study (e.g., tracking pill consumption and reporting adverse events to the investigator) Any medical or other condition that in the opinion of the investigator(s) would preclude the participant's participation in a clinical study. Has an Underlying medical condition that would preclude study participation. history or evidence of clinically significant cardiovascular, CNS and/or other systemic disease that would in the investigator's opinion preclude participation in the study or compromise the patient's ability to give informed consent. Have any medical or other condition that in the opinion of the investigator(s) would preclude the participant's participation in a clinical study Any medical or other condition that in the opinion of the investigator would preclude the subject's participation in a clinical study Any condition that would preclude informed consent, consistent follow-up and compliance for the study participation Any condition which, in the opinion of the investigator, would preclude participation in this trial Any medical or other condition that in the opinion of the investigator(s) would preclude the subject's participation in a clinical study or would preclude them from completing the study. Medical or psychiatric illness that would, in the opinion of the investigator, preclude participation in the study or the ability of patients to provide informed consent for themselves. Any condition which, in the opinion of the investigator, would preclude participation in this trial Subjects with a clinically significant or unstable medical condition that would preclude safe and complete study participation No other significant medical or psychiatric problems that would preclude study participation or interfere with capacity to give informed consent. Have serious preexisting medical conditions that, in the judgment of the investigator, would preclude participation in this study (for example, history of major surgical resection involving the stomach or small bowel) History of medical or psychiatric disease which, in the view of the principal investigator, would preclude safe treatment Have serious preexisting medical conditions that, in the opinion of the investigator, that cannot be adequately controlled with appropriate therapy or would preclude participation in this study Any medical or other condition which, in the opinion of the investigator, would preclude participation in a clinical trial or the investigator’s belief that the subject is medically unfit to receive eribulin mesylate and atezolizumab or unsuitable for any other reason The participant has serious preexisting medical condition(s) that, in the judgment of the investigator, would preclude participation in this study. Any medical condition that would preclude adequate evaluation of the safety and toxicity of the study combination Any other condition which, in the opinion of the Investigator, would preclude participation in this trial Any medical condition that would preclude adequate evaluation of the safety and toxicity of the study combination Any other condition which, in the opinion of the investigator, would preclude participation in this trial Patient has any other medical, psychiatric, or social condition, including substance abuse that in the opinion of the investigator would preclude participation in the study. Any condition, which in the opinion of the investigator, would preclude participation in this trial Illness or any other circumstances (as defined by the investigator), which would preclude safe performance of study procedures or compromise the ability of the patient to consent to study Any condition which, in the opinion of the investigator, would preclude participation in this trial Any medical or other condition which, in the opinion of the PI or designee, will preclude participation in a clinical trial. Have serious preexisting medical conditions that would preclude participation in the study Any condition that in the opinion of the investigator, would preclude participation in this study No known history of any condition or factor judged by the investigator to preclude participation in the study or which might hinder study adherence One or more significant medical conditions that in the physician’s judgment preclude participation in the walking intervention One or more significant medical conditions that in the physician’s judgment preclude participation in the walking intervention Any medical or other condition that in the opinion of the investigator(s) would preclude the participant's participation in a clinical study Any condition that in the opinion of the investigator would preclude participation in this study Psychiatric condition that would preclude or take precedence over study participation (e.g., active psychosis, suicidal ideation) One or more significant medical conditions or other issues that in the physician’s judgment preclude participation in the walking intervention Significant psychiatric disturbance sufficient, in the investigator's judgment, to preclude participation in the intervention (e.g., acute psychiatric symptoms which requires individual treatment) In the opinion of the principal investigator (PI), the participant has a condition that will preclude them from complying with study treatment One or more significant medical conditions that in the physician’s judgment preclude participation in the walking or strength training intervention One or more significant medical conditions that in the physician’s judgment preclude participation in the walking intervention One or more significant medical conditions that in the treatment team’s judgment preclude participation in the walking intervention Any condition that, in the opinion of the investigator, would preclude safe and adequate test performance Significant co-morbidities (e.g., diabetes, cardiac disease, or other condition that in the opinion of the primary physician or investigators would limit participation in the intervention groups) that would preclude study participation Other medical condition or laboratory value that would, at the discretion of the investigator, preclude the patient from participation in this clinical study Uncontrolled illness or comorbidity that in the judgment of the principal investigator (PI) would preclude participation in the study Any condition which, in the opinion of the investigator, would preclude participation in this trial Patients with any other medical condition or laboratory value that would, at the discretion of the investigator, preclude the patient from participation in this clinical study. Any medical or other condition that in the opinion of the investigator(s) would preclude the participant's participation in a clinical study.