PRAME-TCR-NK Cells with Lymphodepleting Chemotherapy for the Treatment of Relapsed and Refractory Acute Myeloid Leukemia and Myelodysplastic Syndrome/Chronic Myelomonocytic Leukemia

Inclusion Criteria

• 18-80 years of age. English and non-English speaking patients are eligible
• Patients with one of the following hematological malignances: AML, MDS/CMML
• Patients must meet disease specific eligibility criteria
• Patients at least 7 days from last cytotoxic chemotherapy at the time of starting lymphodepleting chemotherapy, except for hydroxyurea which is allowed for peripheral blood count control in AML patients until the day prior to administration of lymphodepleting chemotherapy. Patients may continue tyrosine kinase inhibitors or other targeted therapies until up to three days prior to administration of lymphodepleting chemotherapy
• Localized radiotherapy to one or more disease sites is allowed prior the infusion provided that there are additional disease sites that are not irradiated to assess response
• Karnofsky Performance Scale > 50%
• Serum creatinine </= 2.0 mg/dL
• Estimated glomerular filtration rate (eGFR using the Chronic Kidney Disease Epidemiology [CKD-EPI] equation)
• Alanine aminotransferase (ALT)/aspartate aminotransferase (AST) </= 2.5 x upper limit of normal (ULN) or </= 5 x ULN if documented liver metastases
• Total bilirubin </= 1.5 mg/dL, except in subjects with Gilbert’s syndrome in whom total bilirubin must be </= 3.0 mg/dL
• No history of liver cirrhosis
• No ascites
• Cardiac ejection fraction >/= 40%
• No clinically significant pericardial effusion as determined by an ECHO/MUGA, and no uncontrolled arrhythmias or symptomatic cardiac disease
• No clinically significant pleural effusion (per principal investigator [PI] discretion), baseline oxygen saturation > 92% on room air and adequate pulmonary function with forced expiratory volume in 1 second [FEV1], forced vital capacity [FVC] and diffusion capacity of the lung for carbon monoxide [DLCO] (corrected for hemoglobin [Hgb]) > 50%
• Able to provide written informed consent
• All participants who are able to have children must practice effective birth control while on study and up to 3 months post completion of study therapy. Acceptable forms of birth control for female patients include: hormonal birth control, intrauterine device, diaphragm with spermicide, condom with spermicide, or abstinence, for the length of the study. If the participant is a female and becomes pregnant or suspects pregnancy, she must immediately notify her doctor. If the participant becomes pregnant during this study, she will be taken off this study. * Approved methods of birth control are as follows: hormonal contraception (i.e. birth control pills, injection, implant, transdermal patch, vaginal ring), intrauterine device (IUD), tubal ligation or hysterectomy, subject/partner post vasectomy, implantable or injectable contraceptives, and condoms plus spermicide. Not engaging in sexual activity for the total duration of the trial and the drug washout period is an acceptable practice; however periodic abstinence, the rhythm method, and the withdrawal method are not acceptable methods of birth control. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately
• Men treated or enrolled on this protocol must also agree to use adequate contraception, such as subject post vasectomy, partner with implantable or oninjectable contraceptives, and condoms plus spermicide, prior to the study, for the duration of study participation, and 4 months after completion of study agent administration. Men who are able to have children must use effective birth control while on the study. If the male participant fathers a child or suspects that he has fathered a child while on the study, he must immediately notify his doctor
• Signed consent to long-term follow-up protocol PA17-0483 to fulfill the institutional responsibilities to various regulatory agencies
• Life expectancy >= 3 mo, by PI assessment
• Patients are HLA-A*02:01 positive on HLA typing
• Patients must have one of the following diseases: * Acute myeloid leukemia (AML): one of the following: ** Patients with active (> 5% of blasts or positive minimal residual disease [MRD] at a level of > 0.1% measured by multiparameter flow cytometry) relapsed or refractory AML. Who have received at least two lines of therapy. One or more of the lines of therapy must include hypomethylating agents and venetoclax. Patients who have mutations for which there are Food and Drug Administration (FDA) approved targeted therapies (i.e. FLT3) must also have received at least one of such agent. Patients with diagnosis of acute promyelocytic leukemia are not eligible. Patients who relapse after allogeneic stem cell transplantation are eligible irrespective of the number and type of therapy received prior transplant *** Relapsed AML is defined as patients who had a first complete remission (CR) before developing recurrent disease *** Refractory AML is defined as patients that have not achieved a CR after 2 cycles of standard induction chemotherapy OR ** For patients with secondary AML, the therapies received prior transformation will be considered when determining the eligibility of the patient. For example, patients who received hypomethylating agents and venetoclax for the treatment of the MDS are not required to receive again hypomethylating agents and venetoclax to treat the secondary AML to be eligible. Similarly, patients who received two lines of therapy for the management of the MDS or myeloproliferative disorder (MPD) are not required to receive an additional two lines of therapy for the management of the AML to be eligible. Patients who relapse after allogeneic stem cell transplantation are eligible irrespective of the number and type of therapy received prior transplant * Myelodysplastic syndromes (MDS)/Chronic myelomonocytic leukemia (CMML): one of the following: ** Patients with high risk or intermediate risk MDS/CMML who have received at least two lines of therapy and have positive MRD at a level of > 0.1% measured by multiparameter flow cytometry or are not in morphological remission OR ** Patients with relapse high risk or intermediate risk MDS/CMML after at least 2 lines of therapy. Relapse is defined as positive MRD at a level of > 0.1% measured by multiparameter flow cytometry or loss of morphological remission OR ** CMML patients with refractory disease defined as failure to achieve complete remission after 4 cycles of hypomethylating agent therapy or relapse or progression after any number of cycles of therapy OR ** Patients with MDS/CMML who relapse after allogeneic stem cell transplantation are eligible irrespective of the number and type of therapy received prior to transplant

Exclusion Criteria

• Positive beta human chorionic gonadotropin (HCG) in female of child-bearing potential defined as not postmenopausal for 24 months or no previous surgical sterilization or lactating females
• Presence of clinically significant grade 3 or greater toxicity from the previous treatment, as determined by PI
• Presence of uncontrolled fungal, bacterial, viral, or other infection not responding to appropriate therapy
• Known active hepatitis B or C
• Known HIV with detectable viral load
• Presence of active neurological disorder(s)
• Active autoimmune disease within 12 months of enrollment
• Active cerebral or meningeal involvement by the malignancy
• Active (defined as requiring therapy) acute or chronic graft versus host disease (GVHD)
• Any other malignancy known to be active, except for treated cervical intra-epithelial neoplasia and non-melanoma skin cancer
• Presence of any other serious medical condition that may endanger the patient at investigator discretion
• Major surgery < 4 weeks prior to first dose of the preparatory chemotherapy
• Allogeneic stem cell transplant (SCT) or donor lymphocyte infusion (DLI) < 12 weeks prior to first dose of preparatory chemotherapy
• Concomitant use of other investigational agents
• Concomitant use of other anti-cancer agents
• Patients receiving systemic steroid therapy at time of enrollment (physiological substitutive doses are allowed), or have received antithymocyte globulin or lymphocyte immune globulin within 14 days of enrollment or alemtuzumab within 28 days of enrollment
• Patients receiving immunosuppressive therapy such as steroids and calcineurin inhibitors