Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized, Double Blind, Placebo Controlled Study Evaluating the Efficacy and Safety of AMG 531 Treatment of Subjects With Low or Intermediate-1 Risk Myelodysplastic Syndrome (MDS) Receiving Lenalidomide.
Brief Summary: This is a dose and schedule finding study of AMG 531 designed to assess the activity of AMG 531 to reduce the rate of clinically significant bleeding and blood transfusions in subjects with myelodysplastic syndrome (MDS) receiving lenalidomide. Subjects with MDS that are planned to receive at least four cycles of lenalidomide for treatment of their disease are appropriate to screen for this study.

All subjects meeting the eligibility criteria will receive lenalidomide 10 mg capsule by mouth daily every day of each 28-day cycle. Subjects will receive AMG 531 or placebo once a week by subcutaneous injection for 16 weeks.


Options:
A: Inclusion Criteria:

* Diagnosis of MDS by bone marrow biopsy based on the World Health Organization (WHO) classification
* Low or Intermediate-1 risk category MDS using the IPSS
* Planned to receive lenalidomide 10 mg capsule by mouth daily for all 28 days of each cycle for at least 4 cycles
* Eastern Cooperative Oncology (ECOG) performance status of 0-2
* Subjects must be at least 18 years of age or older

Exclusion Criteria:

* Prior exposure to \>3 cycles of lenalidomide
* Exposure to lenalidomide within the last 30 days
* Prior history of leukemia or aplastic anemia
* Prior history of stem cell transplantation
* Prior malignancy (other than in situ cervical cancer or basal cell cancer of the skin) unless treated with curative intent and without evidence of disease for 3 years before randomization
* Active or uncontrolled infections
* Unstable angina, congestive heart failure \[NYHA \> class II\], uncontrolled hypertension \[diastolic \> 100 mmHg\], uncontrolled cardiac arrhythmia, or recent (within 1 year) myocardial infarction
* History of arterial thrombosis ( eg, stroke or transient ischemic attack) in the past year
* History of venous thrombosis in the past year
* Received IL-11 within 4 weeks of screening
* Less than 4 weeks since receipt of any investigational drug or device
* Have previously received any other thrombopoietic growth factor
* Pregnant or breast feeding
* Subjects of reproductive potential who are not using adequate contraceptive precautions, in the judgment of the investigator
* Known hypersensitivity to any recombinant E coli-derived product
B: Inclusion Criteria:

* - Planned coronary artery bypass grafting (CABG) or CABG plus single heart valve replacement/repair or planned replacement/repair of a single heart valve

Exclusion Criteria:

* Known intolerance to protamine
* Known or suspected allergy to the used antifibrinolytic agent
* Refusal to receive blood or blood product
* Planned surgery including the aortic arch and/or descending aorta
* Planned surgery including any implantable ventricular assist device
* Adult congenital heart diseases
* Two or more previous cardiac surgery procedures
* Any known autoimmune diseases: Collagen vascular disease (Systemic lupus erythematosus, Rheumatoid arthritis, Sjögrens syndrome) - Endocrine: hyperthyroidism (Graves disease), adrenal insufficiency, Hashimoto's thyroiditis - Neurologic: Multiple sclerosis, myasthenia gravis - Skin: pemphigous vulgaris Hematologic: Pernicious anaemia, Autoimmune haemolytic anaemia - Vasculitis - Primary or secondary antiphospholipid syndrome
* Weight above 140 kg
C: Inclusion Criteria:

* Adult subjects (18 years of age or older) with advanced MDS, sAML/MDS, or de novo AML with \>=10% and \<=50% blasts in bone marrow. Peripheral blood blast change over time should not be suggestive of highly proliferative disease (as judged by the investigator).
* Subjects must be dependent on regular platelet transfusions or have a platelet count taken within the 4 weeks prior to randomization that is \<30 Gi/L.
* Subjects must be relapsed, refractory or ineligible to receive standard treatment options of azacitidine and decitabine and must be relapsed, refractory or ineligible to receive intensive chemotherapy or autologous/allogeneic stem cell transplantation. A subject may be considered relapsed/refractory to a standard treatment if it is discontinued due to lack of efficacy. For subjects ineligible for standard treatments, it is permissible to start one of these standard treatments while on study medication if the Investigator considers that the subject becomes eligible during the course of the study.
* Prior therapy with demethylating agents (azacitidine or decitabine), lenalidomide or IL-11(oprelvekin) must have been completed at least 4 weeks before Day 1; antithymocyte/antilymphocyte globulin, intensive chemotherapy, or autologous/allogeneic stem cell transplantation must have been completed at least 2 months before Day 1. If a subject must discontinue a course of therapy due to lack of efficacy, the washout periods listed above do not apply (and the patient may be screened and randomized immediately if other eligibility criteria are met).
* Subjects must have platelet count and platelet transfusion data available over a period of 4 weeks prior to randomization.
* Subjects with advanced MDS, sAML/MDS, or de novo AML must have stable disease indicated by a doubling time of peripheral blast counts \>7 days during screening.
* During the 4 weeks prior to randomization, subjects must have a baseline bone marrow examination including the following:
* cytomorphology to confirm bone marrow blasts between 10-50%,
* cytogenetics (provide only most prevalent abnormal clone),

The results of the above tests are required prior to subject randomization.

* Supportive/palliative therapies such as cytokines (except for IL-11; oprelvekin), valproic acid, all-trans retinoic acid or mild chemotherapy are allowed if part of the local SOC, provided those therapies have been at a stable dose for 4 weeks. If the subject chooses to discontinue these therapies prior to study entry, they must be completed 4 weeks prior to enrollment into this study, unless the therapy is discontinued due to lack of efficacy. Erythropoiesis-stimulating agents (ESAs) in anemic subjects or granulocyte colony-stimulating factor (G-CSF) in subjects with severe neutropenia and recurrent infections are allowed during the study as per accepted standards. Subjects who enter the study on ESAs or G-CSF should continue at the same dose schedule until the optimal dose of study medication has been established.
* ECOG Status 0-3.
* Subject is able to understand and comply with protocol requirements and instructions.
* Subject has signed and dated informed consent.
* Prothrombin time (PT/INR) and activated partial thromboplastin time (aPTT) must be within 80 to 120% of the normal range at baseline.
* Adequate baseline organ function defined by the criteria below:
* total bilirubin (except for Gilbert's Syndrome) \<= 1.5xULN
* ALT and AST \<= 3xULN
* creatinine \<= 2xULN
* albumin must not be below the lower limit of normal (LLN) by more than 20%.
* Subject is practicing an acceptable method of contraception (documented in chart). Female subjects (or female partners of male subjects) must either be of non-childbearing potential (hysterectomy, bilateral oophorectomy, bilateral tubal ligation or post-menopausal \>1 year), or of childbearing potential and use 1 of the following highly effective methods of contraception (i.e., Pearl Index \<1.0%) from 2 weeks prior to administration of study medication, throughout the study, and 28 days after completion or premature discontinuation from the study:
* Complete abstinence from intercourse;
* Intrauterine device (IUD);
* Two forms of barrier contraception (diaphragm plus spermicide, and for males condom plus spermicide);
* Male partner is sterile prior to entry into the study and is the only partner of the female;
* Systemic contraceptives (combined or progesterone only).

Exclusion Criteria:

* Subjects with a diagnosis of acute promyelocytic leukemia.
* History of treatment for cancer (other than MDS, sAML/MDS, or de novo AML) with systemic chemotherapy and/or radiotherapy within the last 2 years.
* History of treatment with romiplostim or other TPO-R agonists.
* Pre-existing cardiovascular disease (including congestive heart failure, New York Heart Association \[NYHA\] Grade III/IV), or arrhythmia known to increase the risk of thromboembolic events (e.g. atrial fibrillation), or subjects with a QTc \>450 msec (QTc \>480 msec for subjects with Bundle Branch Block).
* Bone marrow fibrosis that leads to an inability to aspirate marrow for assessment.
* Spleen size \>14 cm (length as per ultrasound examination).
* Leukocytosis \>=25,000/uL prior to Day 1 of study medication.
* Female subjects who are nursing or pregnant (positive serum or urine Beta-human chorionic gonadotropin \[B-hCG\] pregnancy test) at screening or pre-dose on Day 1.
* Current alcohol or drug abuse.
* Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of study medication.
* Active and uncontrolled infections.
* Subjects infected with Hepatitis B, C or Human Immunodeficiency Virus (HIV).
* Subjects with liver cirrhosis.
D: Inclusion Criteria:

* Diagnosis of MDS using the World Health Organization classification
* Low or Intermediate-1 risk MDS using the International Prognostic Scoring System (IPSS)
* The mean of two platelet counts taken during the screening period must be ≤ 50 x 10\^9/L, with no individual count \> 55 x 10\^9/L (The mean platelet counts of 5 subjects enrolled at the maximum tolerated dose (MTD) must be ≤ 20 x 10\^9/L). Standard of care platelet assessments taken prior to Informed Consent may be used as 1 of the 2 counts taken within 3 weeks prior to study day 1.
* Must be ≥ 18 years of age at the time of obtaining informed consent
* Eastern Cooperative Oncology Group (ECOG) performance status of 0-2 at the time of screening
* Adequate Liver Function, as evidenced by a serum bilirubin ≤ 1.5 times the laboratory normal range (except for patients with a confirmed diagnosis of Gilbert's Disease), alanine aminotransferase (ALT) ≤ 3 times the laboratory normal range, and aspartate aminotransferase (AST) ≤ 3 times the laboratory normal range
* A serum creatinine concentration ≤ 2 mg/dL (≤ 176.6 µmol/L)
* Before any study-specific procedure, the appropriate written informed consent must be obtained (see Section 12.1)

Exclusion Criteria:

* Currently receiving any treatment for MDS other than transfusions and erythropoietic growth factors. If granulocyte growth factors are currently being received, they cannot be used on or after study day 1
* Clinically significant bleeding within 2 weeks prior to screening (eg, gastrointestinal (GI) bleeds, intracranial hemorrhage)
* Prior malignancy (other than controlled prostate cancer, in situ cervical cancer or basal cell cancer of the skin) unless treated with curative intent and without evidence of disease for ≥ 3 years before screening
* Prior history of bone marrow transplantation
* Persistent peripheral blood monocytosis (≥ 3 months with an absolute monocyte count \> 1,000/µL)
* Unstable angina, congestive heart failure (New York Heart Association \[NYHA\] \> class II), uncontrolled hypertension (diastolic \> 100 mmHg), uncontrolled cardiac arrhythmia, or recent (within 1 year) myocardial infarction
* Received Anti-Thymocyte Globuline (ATG) within 6 months of screening
* Received hypomethylating agents, immunomodulating agents, histone deacetylase inhibitors, cyclosporine or mycophenolate within 6 weeks of screening
* Received interleukin (IL)-11 (oprelvekin) within 4 weeks before screening
* Concurrent use of granulocyte growth factors (i.e. granulocyte-colony stimulating factor \[G-CSF; Neupogen, Granocyte\], pegfilgrastim \[Neulasta\], granulocyte macrophage-colony stimulating factor \[GM-CSF; Leukine, Prokine, Sargramostim\])
* Have ever previously received recombinant thrombopoietin (rTPO), pegylated recombinant human megakaryocyte growth and development factor (PEG-rHuMGDF), eltrombopag, or romiplostim
* Less than 4 weeks since receipt of any therapeutic drug or device that is not Food and Drug Administration (FDA) approved for any indication
* Other investigational procedures are excluded
* History of arterial thrombosis (eg, stroke or transient ischemic attack) in the past year
* History of venous thrombosis that currently requires anti-coagulation therapy
* Untreated B12 or folate deficiency
* Subject is evidently pregnant (eg, positive human chorionic gonadotropin \[HCG\] test) or is breast feeding
* Subject is not using adequate contraceptive precautions
* Subject has known hypersensitivity to any recombinant E coli-derived product
* Subject previously has enrolled in this study
* Subject will not be available for follow-up assessment
* Subject has any kind of disorder that compromises the ability of the subject to give written informed consent and/or to comply with study procedures

Answer: A