Non Hodgkin Lymphoma Clinical Trial
Study of SIRPant-M in Participants With Relapsed or Refractory Non-Hodgkin’s Lymphoma
The goal of this study is to test SIRPant-M, an autologous cell therapy, alone or in combination with focal external-beam radiotherapy in participants with relapsed or refractory non-Hodgkin's lymphoma (NHL). Two dose levels of SIRPant-M are being tested. The main question this study aims to answer is if SIRPant-M alone or in combination with radiotherapy is safe and well-tolerated.
This is an open-label phase 1 study of SIRPant-M studied in serial cohorts either alone (monotherapy), or combined with low-dose focal external-beam radiotherapy (XRT) in patients with relapsed- or refractory Non-Hodgkin's lymphoma (NHL). Both B-cell and certain T-cell NHL (select PTCL; CTCL) are eligible. The primary objective of the study is to assess the safety and tolerability of autologous SIRPant-M, delivered by 3 intra-tumoral injection, given either alone or combined with 2.5 Gy focal XRT.
A course (cycle) of SIRPant-M is prepared from a single mononuclear apheresis, and comprises 3 equal ITI doses, administered at 2-day intervals. A low dose (90x10^6 cells split over 3 injections) and a high dose (300x10^6 cells split over 3 injections) of SIRPant-M are evaluated. In cohorts receiving supplemental radiation, each cell injection will be followed by 2.5 Gy radiation directed at the injected tumor site (7.5 Gy total).
Dose escalations will be staggered using the 3+3 Phase 1 design, and safety will be monitored by the Safety Review Committee (SRC). The SRC may direct additional- or intermediate dose levels to be evaluated, as guided by emerging data.
Adult, defined as age ≥ 18 (at screening), who are willing and able to provide informed consent
Must have relapsed/refractory lymphoma, received at least 2 lines of systemic therapy, be ineligible or inappropriate for other treatment regimens known to have curative potential, and must have recovered from the acute toxic effects of all prior oncologic therapy of curative intent (except alopecia)
Histologically or cytologically confirmed diagnosis of NHL, any one of the below:
Eligible for SIRPant-M monotherapy or SIRPant-M plus focal XRT combination therapy: Diffuse large B-cell lymphoma and cutaneous T-cell lymphoma (CTCL), including mycosis fungoides (MF), Sezary Syndrome, anaplastic large cell lymphoma (ALCL), lymphomatoid papulosis; adult T-cell leukemia/lymphoma (ATLL); peripheral T cell lymphoma; and angioimmunoblastic T cell lymphoma
Eligible for SIRPant-M monotherapy only: Cutaneous B-cell lymphoma, including primary cutaneous follicle center lymphoma and primary cutaneous marginal zone B-cell, leg type; follicular center lymphoma; chronic lymphocytic leukemia (CLL) /small lymphocytic lymphoma (SLL); mantle cell lymphoma (MCL); nodal marginal zone B-cell lymphoma
Must have at least one accessible lymph node or cutaneous or subcutaneous lesion of 1.5 to 5 cm in one dimension as measured by computed tomography (CT) or positron emission tomography/computed tomography (PET/CT) or ultrasound for ITI by an interventional radiologist or other appropriately qualified and trained personnel, which presents a low risk for complications as determined by the Interventional Radiologist and the Principal Investigator. The target lesion must not have been previously irradiated. Note that lesions in the vicinity of large vessels, and tumor-encased large vessels are not considered low-risk. Additional caution should be taken in patients with neck lesions and lesions connected to ulcerated skin or mucosal surface. The target lesion must not be >5 cm in any dimension.
Must have a life expectancy > 3 months; must also be confirmed within 7 days prior to Day 1 of SIRPant-M ITI treatment
Must have an Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 2; must also be confirmed within 7 days prior to Day 1 of SIRPant-M ITI treatment
Must have hematologic values as follows: hemoglobin (Hgb) > 8 g/dL, ANC > 500 /mm3, monocyte counts ≥ 200/μL, and platelets > 50,000/µL; must also be confirmed within 7 days prior to Day 1 of SIRPant-M ITI treatment
Must have adequate renal and hepatic function as follows:
Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) <3× the upper limit of normal (ULN) (unless attributed to leukemic involvement or required concomitant medication)
Calculated creatinine clearance ≥60 milliliter per minute (mL/min) calculated with Cockcroft-Gault formula
Bilirubin ≤1.5×ULN, unless secondary to Gilbert's Syndrome.
Must also be confirmed within 7 days prior to Day 1 of SIRPant-M ITI treatment.
Cardiac function: Must be American Heart Association (AHA) class 1 without significant limitation of physical activity; must also be confirmed within 7 days prior to Day 1 of SIRPant-M ITI treatment.
Must not be pregnant or planning to become pregnant. A negative urine or serum pregnancy test result is required for persons of reproductive potential within 72 hours prior to start of study treatment administration.
All persons of reproductive potential must agree to use an effective contraceptive method during study participation and for a minimum of 90 days after study treatment.
Biologically female: is premenarcheal, surgically sterile (post hysterectomy, bilateral salpingectomy, or bilateral oophorectomy), postmenopausal (>12 months of amenorrhea without alternative medical causes), or, if of reproductive potential, is using a highly effective method of contraception (combined estrogen/progestogen or progestogen-only hormonal contraceptives associated with inhibition of ovulation, intrauterine device [IUD], intrauterine hormone-releasing system [IUS], bilateral tubal occlusion/ligation, vasectomized partner[s], double barrier method [male condom with either cap, diaphragm, or sponge with spermicide], or true abstinence of heterosexual intercourse when this is in line with the preferred and usual lifestyle of the person [periodic abstinence, eg, calendar, ovulation, symptom-thermal, post-ovulation methods, and withdrawal are not acceptable methods of contraception]), and agrees to continued use of this method until 90 days after end of study treatment
Biologically male: is vasectomized and has received medical assessment of surgical success, has undergone bilateral orchidectomy, or agrees to use an approved method of contraception (true abstinence of heterosexual intercourse when this is in line with the preferred and usual lifestyle of the person, double barrier method [male condom with either cap, diaphragm, or sponge with spermicide], partner's use of a highly effective method of contraception sterile, partner is postmenopausal, or partner is surgically sterile) and agrees to use this method until 90 days after study treatment
In the opinion of the Investigator, must be willing and able to comply with the protocol for the duration of the study including undergoing treatment, the required tumor tissue biopsy procedures, scheduled visits and examinations, and including follow up
Must not have received prior ITI therapy
Must not have received ASCT or treatment with cellular therapy including CAR-T within the prior 1 month; must not have received allogeneic stem cell transplantation within prior 6 months and must have no active graft-versus-host disease (GVHD) or be under active immunosuppression for GVHD.
Must not have received prior systemic anti-cancer therapy within the past 14 days before start of study cell therapy
Must not have received IL-2 therapy within the last 6 months
Must not have acquired immune defects such as human immunodeficiency virus (HIV)
Must not have uncontrolled hypertension (systolic >180 mmHg, diastolic >100 mmHg)
Must not have diagnosis of unclassifiable B cell lymphoma
Must not have bleeding diathesis or abnormal values for prothrombin time (PT) or activated partial thromboplastin time (aPTT), international normalized ratio (INR) > 1.5× ULN
Must not be receiving anti-platelet drugs that may present a risk for intratumor injections
Must not have pulmonary disease which, in the opinion of the Investigator, might impair the patient's respiratory tolerance to moderate pulmonary fluid overload (eg, interstitial lung disease, severe chronic obstructive pulmonary disease)
Must not have known alcohol or drug abuse
Must not have received an investigational agent within the past 30 days before start of study cell therapy
Must not require a chronic therapy with prednisone at a dose of or exceeding 10 mg/day or equivalent or any other form of immunosuppressive therapy
Must not have active central nervous system tumors or metastases
Must not be ineligible to receive 2.5 Gy ×3 focal external-beam radiation therapy as determined by the Radiation Oncologist and Principal Investigator (Cohort 1/Group 2, Cohort 2/Group 4, and Cohort -1/Group 4 only)
Must not have uncontrolled active viral hepatitis-B, -C, and/or -D infection
Must not have received a live vaccine within 4 weeks of the baseline/screening visit
Must not have active, uncontrolled autoimmune disease and/or history of autoimmune diseases at high risk for relapse
Must not have another malignancy or uncontrolled intercurrent illness, condition, serious medical or psychiatric illness, or circumstance that, in the opinion of the Investigator, could interfere with adherence to the study's procedures or requirements, or otherwise compromise the study's objectives
No active systemic infection; must also be confirmed on Day 1 prior to initiation of ITI
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