Please select the eligibility criteria that correspond to the clinical trial below.
Title: Dose Study of Antithymocyteglobulin in Haploidentical Hematopoietic Stem Cell Transplantation for Acute Graft-versus-host Disease Prophylaxis
Brief Summary: The purpose of this study is to compare the incidences of GVHD and viral infections in haploidentical hematopoietic stem cell transplant recipients receiving different dose of antithymocyte globulin (ATG) for acute graft-versus-host disease(aGVHD) prophylaxis. Our first objective was to investigate the optimal dose of ATG for aGVHD and second object was to evaluate the effect of different dose of ATG on post-transplant viral infection.


Options:
A: Inclusion Criteria:

* A patient age of 14-65 years
* Haploidentical hematopoietic stem cell transplant recipient
* Subjects (or their legally acceptable representatives) must have signed an informed consent document indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study

Exclusion Criteria:

* Any abnormality in a vital sign (e.g., heart rate, respiratory rate, or blood pressure)
* Patients with any conditions not suitable for the trial (investigators' decision)
B: Inclusion Criteria:

* all patients already enrolled in the ATG_family_study (NCT00678275), and published by Kroger N et al. Antilymphocyte Globulin for Prevention of Chronic Graft-versus-Host Disease. N Engl J Med 2016;374:43-53
* informed consent given

Exclusion Criteria:

* none
C: Inclusion Criteria:

* Have undergone allogeneic stem cell transplantation (alloSCT) from any donor source (matched unrelated donor, sibling, haplo-identical) using bone marrow, peripheral blood stem cells, or cord blood. Recipients of non-myeloablative, myeloablative, and reduced intensity conditioning are eligible
* Evident myeloid and platelet engraftment: Absolute neutrophil count (ANC) \> 1000/mm\^3 and platelet count \> 25,000/ mm\^3
* Participants with clinically diagnosed moderate to severe cGvHD according to NIH Consensus Criteria prior to randomization:

  * Moderate cGvHD: At least one organ (not lung) with a score of 2, 3 or more organs involved with a score of 1 in each organ, or lung score of 1
  * Severe cGvHD: at least 1 organ with a score of 3, or lung score of 2 or 3
* Participants currently receiving systemic or topical corticosteroids for the treatment of cGvHD for a duration of \< 12 months prior to Cycle 1 Day 1 (if applicable), and have a confirmed diagnosis of steroid-refractory cGvHD defined per 2014 NIH consensus criteria irrespective of the concomitant use of a calcineurin inhibitor (CNI), as follows:

  * A lack of response or disease progression after administration of minimum prednisone 1 mg/kg/day for at least 1 week, OR
  * Disease persistence without improvement despite continued treatment with prednisone at \> 0.5 mg/kg/day or 1 mg/kg/every other day for at least 4 weeks, OR
  * Increase to prednisolone dose to \> 0.25 mg/kg/day after 2 unsuccessful attempts to taper the dose
* Participant must accept to be treated with only one of the following BAT options on Cycle 1 Day 1 (additions and changes are allowed during the course of the study, but only with BAT from the following BAT options): extracorporeal photopheresis (ECP), low-dose methotrexate (MTX), mycophenolate mofetil (MMF), mTOR inhibitors (everolimus or sirolimus), infliximab, rituximab, pentostatin, imatinib, ibrutinib

Exclusion Criteria:

* Participants who have received 2 or more systemic treatment for cGvHD in addition to corticosteroids ± CNI for cGvHD
* Patients that transition from active aGvHD to cGvHD without tapering off corticosteroids ± CNI and any systemic treatment

  \* Patients receiving up to 30 mg by mouth once a day of hydrocortisone (i.e., physiologic replacement dose) of corticosteroids are allowed.
* Participants who were treated with prior JAK inhibitors for aGvHD; except when the participant achieved complete or partial response and has been off JAK inhibitor treatment for at least 8 weeks prior to Cycle 1 Day 1
* Failed prior alloSCT within the past 6 months from Cycle 1 Day 1
* Participants with relapsed primary malignancy, or who have been treated for relapse after the alloSCT was performed
* Steroid refractory cGvHD occurring after a non-scheduled donor lymphocyte infusion (DLI) administered for preemptive treatment of malignancy recurrence. Participants who have received a scheduled DLI as part of their transplant procedure and not for management of malignancy relapse are eligible
* Any corticosteroid therapy for indications other than cGvHD at doses \> 1 mg/kg/day methylprednisolone or equivalent within 7 days of Cycle 1 Day 1
D: Inclusion Criteria:

* Acute myeloid leukemia in first or subsequent complete remission (de-novo or secondary AML)
* Acute lymphoblastic leukemia in first or subsequent complete remission
* Patient's age: 18 - 65 years
* Myeloablative standard conditioning
* HLA-identical sibling (HLA-A, HLA-B, HLA-DRB1 and HLA-DQB1)
* No major organ dysfunctions
* Patient's written consent

Exclusion Criteria:

* No complete remission at time of randomization
* Severe irreversible renal, hepatic, pulmonary or cardiac disease, such as

  * Total bilirubin, SGPT or SGOT 5 times upper the normal level
  * left ventricular ejection fraction \<30%
  * Creatinine clearance \<30 ml/min
  * DLCO \<35% and/or receiving supplementary continuous oxygen
* Positive serology for HIV
* Pregnant or lactating women
* Serious psychiatric or psychological disorders
* Progressive invasive fungal infection at time of registration

Answer: A