Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Other unspecified reasons that, in the opinion of the investigator, make the patient unsuitable for enrollment Any condition which makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Subjects, in the opinion of the Investigator, who are unsuitable to participate in the study. Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Other unspecified reasons that, in the opinion of the Investigator, make the subject unsuitable for enrollment. Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Subject has any condition which makes the subject unsuitable for study participation. Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any other medical condition or laboratory evaluation that, in the treating physician's or principal investigator's opinion, makes the patient unsuitable to participate in this clinical trial Any other conditions or circumstances that would, in the opinion of the investigator, make the patient unsuitable for participation in the study Any condition which, in the investigator's opinion, makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Clinically significant abnormalities or co-morbidities, other than HCV infection that in opinion of the investigator makes subject unsuitable for this study or drug regimen Any other clinical condition, psychiatric condition or prior therapy that, in the opinion of the Investigator, would make the subject unsuitable for the study or unable or to comply with follow-up visits Any other condition or prior therapy that, in the opinion of the Investigator, would make the subject unsuitable for the study or unable to comply with the protocol Any new or uncontrolled condition that could make the patient unsuitable for participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Other unspecified reasons that, in the opinion of the investigator, make the subject unsuitable for the study ARM A: Any condition, which in the opinion of the investigator would render the patient unsuitable to participate in the study ARM B: Any condition, which in the opinion of the investigator would render the patient unsuitable to participate in the study Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which in the investigators opinion makes the subject unsuitable for study participation Subject has any condition which makes the subject unsuitable for study participation. Any condition which, in the investigators opinion, makes the patient unsuitable for trial participation Inability to comply with protocol and /or not willing or not available for follow-up assessments or any condition which in the investigator's opinion makes the patient unsuitable for the study participation Any other medical condition or laboratory evaluation that, in the treating physicians or principal investigators opinion, makes the patient unsuitable to participate in this clinical trial Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigator's opinion, makes the subject unsuitable for trial participation. Presence of any condition which makes the patient unsuitable Any new condition or worsening of existing condition that could make the patient unsuitable for participation, or interfere with the patient participating in and/or completing the study Subject has any condition which makes the subject unsuitable for study participation, including any contraindications of azacitidine. Any condition which, in the investigator's opinion, makes the subject unsuitable for trial participation Any medical condition which, in the investigator's opinion, makes the patient unsuitable for participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Have any past or current, acute or chronic concurrent medical condition/illness or therapy that, in the opinion of the investigator, would make the subject unsuitable for the clinical trial or unable to comply with follow up visits Subject has any condition which makes the subject unsuitable for study participation (e.g. ophthalmic conditions such as advanced cataracts). Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigator's opinion, makes the subject unsuitable for trial participation. Any other condition or prior therapy, which in the opinion of the PI, would make the subject unsuitable for the study. Other unspecified reasons that, in the opinion of the investigator or sponsor, make the subject unsuitable for enrollment Any condition which in the investigator's opinion makes the subject unsuitable for study participation Other unspecified reasons that, in the opinion of the investigator or Millennium, make the patient unsuitable for enrollment Any medical or other condition which, in the opinion of the investigator, would preclude participation in a clinical trial or the investigators belief that the subject is medically unfit to receive eribulin mesylate and atezolizumab or unsuitable for any other reason Any other condition or circumstance that would, in the opinion of the investigator, make the patient unsuitable for participation in the study Any other medical condition or laboratory evaluation that, in the treating physicians or principal investigator's opinion, makes the patient unsuitable to participate in this clinical trial Subject has concurrent corneal disorder or any ophthalmologic condition which, in the investigator's opinion, makes the subject unsuitable for study participation (i.e., advanced cataracts, glaucoma). Subject has any condition which, in the investigator's opinion, makes the subject unsuitable for study participation. Any condition, which, in the site investigator's opinion, makes the subject unsuitable for trial participation. Subject has concurrent corneal disorder or any ophthalmologic condition that makes the subject unsuitable for study participation (e.g., advanced cataracts, glaucoma). Subject has concurrent corneal disorder or any ophthalmologic condition which makes the subject unsuitable for study participation . Subject has any condition which makes the subject unsuitable for study participation. In opinion of Investigator, make subject unsuitable for study. Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation The subject is judged unsuitable for study participation by the Investigator for any other reason. Any condition that, in the opinion of the investigator or the Sponsor, makes the patients unsuitable for the study. Subject with significant or uncontrolled cardiac, renal, hepatic or other systemic disorders; or significant psychological conditions at baseline that in the investigator's opinion, makes the subject unsuitable for study participation. Any condition which in the investigator's opinion makes the patient unsuitable for study participation. Any condition which, in the investigators opinion, makes the subject unsuitable for trial participation Any condition which in the investigator's opinion makes the patient unsuitable for the study participation Any other condition that, in the opinion of the investigator, would make the subject unsuitable for enrollment or could interfere with the subject participating in and completing the protocol. Subject has any condition which may require treatment during the study and may make the subject unsuitable for study participation. Subject has concurrent corneal disorder or any ophthalmologic condition which, in the Investigator's opinion, makes the subject unsuitable for study participation (e.g., advanced cataracts, glaucoma, or subject is unable to undergo a comprehensive ophthalmologic exam). Any other condition which, in the opinion of the investigator, would make the subject unsuitable for trial participation Any other medical condition or laboratory evaluation that, in the treating physicians or principal investigator's opinion, makes the patient unsuitable to participate in this clinical trial Any other condition or intercurrent illness that, in the opinion of the investigator, makes the participant a poor candidate for the trial Any other condition or intercurrent illness that, in the opinion of the investigator, makes the participant a poor candidate for the trial Pleural effusion or ascites that causes respiratory compromise (>= NCI-CTCAE version . grade dyspnea); a) history of organ allograft (including corneal transplant); b) known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial; c) any malabsorption condition; d) any condition which, in the investigators opinion, makes the subject unsuitable for trial participation; e) substance abuse, medical, psychological or social conditions that may interfere with the subjects participation in the study or evaluation of the study results Other unspecified reasons that, in the opinion of the investigator or TARIS, make the subject unsuitable for enrollment. Any other condition or intercurrent illness that, in the opinion of the investigator, makes the participant a poor candidate for the trial Any condition which in the investigators opinion makes the subject unsuitable for study participation Conditions unsuitable for participation in the trial in the investigator's opinion Any other condition or intercurrent illness that in the opinion of the investigator makes the subject a poor candidate for participation in the trial such as recent cardiac event Any other condition or intercurrent illness that in the opinion of the investigator makes the subject a poor candidate for participation in the trial such as recent cardiac event Intercurrent illness which makes potential participant unsuitable for study or started hormone replacement therapy between RPFNA and enrollment on study Any other condition or intercurrent illness that, in the opinion of the investigator, makes the subject a poor candidate for core biopsy or the trial Any other condition or intercurrent illness that in the opinion of the investigator makes the subject a poor candidate for RPFNA or the trial Any condition which would make the subject, in the opinion of the investigator, unsuitable for the study Any condition which in the investigators opinion makes the patient unsuitable for the study participation It is determined by the investigator that the subject is clinically unsuitable for the study Acute major illness (e.g., unstable angina, etc.) or other condition that makes participation unsafe, per the investigators judgement Subject has any condition which makes the subject unsuitable for study participation. Determined by investigator to be clinically unsuitable for the study Any other criteria, in the opinion of the investigator that would make the subject unsuitable for study participation.