A medical or psychiatric illness that precludes ability to give informed consent or is likely to interfere with the ability to comply with the protocol stipulations Ability to comply with the study protocol, in the investigator's judgment Patient with history of poor compliance or history of drug/alcohol abuse, or excessive alcohol beverage consumption that would interfere with the ability to comply with the study protocol, or current or past psychiatric disease that might interfere with the ability to comply with the study protocol or give informed consent Ability to comply with the study protocol, in the investigator's judgment Ability to comply with the study protocol, in the investigator's judgment Limitation of the patient's ability to comply with the treatment or follow-up protocol. Ability to comply with the protocol Willingness and ability to comply with protocol-specified Pneumocystis jirovecii pneumonia (PJP) prophylaxis Subjects with a medical or psychological impediment that would impair the ability of the subject to receive therapy per protocol or impact ability to comply with the protocol or protocol-required visits and procedures Ability to comply with treatment, PK and test schedules Ability to comply with the study protocol, in the investigator's judgment Ability to comply with the protocol Active, uncontrolled psychiatric disorders or substance (drug/alcohol) abuse that interfere with patients safety, ability to provide informed consent, or ability to comply with the protocol Ability to comply with the protocol Ability to comply with the protocol Ability to comply with protocol requirements. Ability to comply with the protocol. Ability to give informed consent and comply with the protocol Ability to comply with the protocol Ability to comply with requirements of the protocol, as assessed by the investigator by the patient signing the consent form Ability to comply with the protocol procedures (including geographic accessibility) Ability to give informed consent and comply with the protocol Ability to give voluntary informed consent and to comply with treatment and required tests Limitation of the patient's ability to comply with the treatment or to follow-up the protocol. Ability to comply with the study protocol, in the investigators judgment Limitation of the patient's ability to comply with the treatment or follow-up requirements. Ability to comply with endometrial biopsies every months Subjects with a medical or psychological impediment that would impair the ability of the subject to receive therapy per protocol or impact ability to comply with the protocol or protocol-required visits and procedures Ability to comply with endometrial biopsies every months Ability to comply with an oral drug regimen Any condition that would interfere with the ability to give informed consent or comply with the study protocol Ability and willingness to comply with study visits, treatment, testing, and to comply with the protocol, in the investigator's judgment Ability to comply with the protocol A medical or psychiatric illness that precludes ability to give informed consent or is likely to interfere with the ability to comply with the protocol stipulations Ability to understand and comply with study guidelines Limitation of the patient's ability to comply with the treatment or follow-up protocol.