Canadian clinical trial registry

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Study Description

Brief Summary:

This partially randomized phase II/III trial studies how well, in combination with surgery, cisplatin and combination chemotherapy works in treating children and young adults with hepatoblastoma or hepatocellular carcinoma. Drugs used in chemotherapy, such as cisplatin, doxorubicin, fluorouracil, vincristine sulfate, carboplatin, etoposide, irinotecan, sorafenib, gemcitabine and oxaliplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving combination chemotherapy may kill more tumor cells than one type of chemotherapy alone.

Detailed Description:

PRIMARY OBJECTIVES:

I. To reduce therapy associated toxicity for patients with non-metastatic hepatoblastoma (HB) and hepatocellular carcinoma (HCC) without adversely affecting long term outcomes.

II. To determine the event-free survival (EFS) in patients with HB whose tumor is completely resected at diagnosis and either receive no adjuvant chemotherapy (completely resected well differentiated fetal [WDF] histology HB) or 2 cycles of standard dose cisplatin monotherapy (completely resected non-well differentiated fetal histology HB - 100 mg/m^2/cycle given 3 weeks apart). (Group A) III. To demonstrate that 4 to 6 cycles of interval compressed lower dose cisplatin monotherapy (80 mg/m^2/cycle; 320-480 mg/m^2 total) is adequate for low risk HB. (Group B) IIIa. In patients who are resected after 2 cycles of cisplatin monotherapy, to compare EFS following a randomized comparison of 2 versus 4 post-operative cycles of cisplatin monotherapy. (Group B) IIIb. In patients whose tumors are deemed unresectable after 2 cycles of cisplatin monotherapy, to determine the proportion of tumors rendered completely resectable by an additional 2 or 4 cycles of chemotherapy. (Group B) IV. To compare in a randomized fashion, EFS in patients with intermediate risk HB treated with 6 cycles of cisplatin/5-fluorouracil/vincristine/doxorubicin (C5VD) chemotherapy versus 6 cycles of interval compressed cisplatin monotherapy (100 mg/m^2/dose). (Group C) V. To determine the EFS in patients with HCC whose tumor is completely resected at diagnosis who receive no adjuvant chemotherapy (completely resected HCC arising in the context of underlying liver disease) or 4 cycles of cisplatin/doxorubicin (PLADO) (completely resected de novo HCC). (Group E) VI. To improve the EFS of patients with high risk HB by treating them with interval compressed cisplatin and doxorubicin based induction regimen followed by response-adapted consolidation therapy. (Group D) VIa. In patients whose metastatic disease resolves with the administration of Societe Internationale d'Oncologie Pediatrique (SIOPEL) 4 Induction therapy, to determine if the promising pilot results observed in SIOPEL 4 can be validated in a large international study. (Group D1) VIb. In patients whose metastatic disease does not resolve with the administration of SIOPEL 4 Induction therapy, to determine in a randomized comparison which post induction treatment (irinotecan and vincristine sulfate [vincristine] alternating with carboplatin and doxorubicin or carboplatin and etoposide alternating with carboplatin and doxorubicin) results in superior outcomes. (Group D Arm CE & Arm VI) VII. In patients with unresectable/metastatic HCC at diagnosis, to determine whether the addition of gemcitabine and oxaliplatin (GEMOX + sorafenib) to a cisplatin, doxorubicin and sorafenib backbone improves chemotherapy response, resectability and survival. (Group F)

EXPLORATORY OBJECTIVES:

I. To determine if the Childhood Hepatic tumor International Consortium (CHIC) hepatoblastoma risk stratification analysis of very low risk (Group A), low risk (Group B), intermediate risk (Group C) and high risk (Group D) groups stratifies patients allowing appropriate utilization of varying intensity chemotherapy regimens and surgical resection strategies.

II. To define the prognostic relevance of a positive microscopic margin in Group A-D resected HB specimens.

III. To define the frequency of histologically detectable multifocal lesions in liver explants and resected specimens in which multifocal disease was detected at diagnosis and disappeared on cross sectional imaging following treatment with chemotherapy.

IV. To define the prognostic relevance in HB of a 'small cell undifferentiated' tumor component and percentage of tumor necrosis in post chemotherapy specimens.

V. To determine the prognostic impact on EFS and overall survival (OS) of biopsy technique in liver tumors unresectable at diagnosis.

VI. To determine the 3-year EFS and OS of HB patients who undergo liver transplantation vs extreme resection in Group C and D patients.

VII. To determine the 3-year EFS and OS of Group D patients who undergo pulmonary metastasectomy.

VIII. To determine the 3-year EFS and OS of patients who undergo liver transplantation for HCC.

IX. To determine the frequency of relapse in non-metastatic HCC in children treated by liver transplantation versus conventional resection.

X. To determine the concordance of Pretreatment Extent of Disease (PRETEXT) and Post-treatment Extent of disease (POSTTEXT) based surgical guidelines and the surgical intervention performed.

XI. To collect for future analysis, HB and HCC tumor specimens that can be molecularly characterized to validate newly identified molecular and immunohistochemical biomarkers correlating with known clinical prognostic factors and outcome.

XII. To evaluate the hepatoblastoma molecular risk-predictive model (HB-MRP) to risk stratify hepatoblastoma patients in the context of the current AHEP1531 trial.

XIII. To collect for future analysis samples to assess the pharmacogenomics (PG) related to cisplatin therapy in pediatric and adolescent liver tumor patients and correlate PG with Boston Grading Scale for ototoxicity.

XIV. To collect for future analysis samples such that novel biomarkers of renal toxicity (urine neutrophil gelatinase-associated lipocalin [NGAL], cystatin C and Kim1) from cisplatin therapy can be correlated with pharmacogenomics, other associated toxicities, and outcomes.

XV. To determine which system (Children's Oncology Group [COG] PRETEXT, SIOPEL PRETEXT, or a new hybrid definition of PRETEXT) of the annotation factors for V, P, E, F and R provides the best prognostic information for determining response to chemotherapy, guiding risk based therapy, predicting surgical resectability, and EFS.

XVI. To determine the concordance between institutional and expert panel review assessment of PRETEXT and POSTTEXT stage in an international cooperative group setting.

OUTLINE:

GROUP A (VERY LOW RISK HB): Patients are assigned to 1 of 2 groups.

GROUP A1 (WDF): Patients undergo observation.

GROUP A2 (NON-WDF): Patients receive cisplatin (CDDP) intravenously (IV) over 6 hours on day 1 following surgery. Treatment repeats every 21 days for up to 2 cycles in the absence of disease progression or unacceptable toxicity.

GROUP B (LOW RISK HB): Patients receive cisplatin IV over 6 hours on day 1. Treatment repeats every 14 days for up to 2 cycles in the absence of disease progression or unacceptable toxicity. Patients are then assigned to 1 of 2 groups

GROUP B1 (RESECTABLE): Patients receive 2 cycles of cisplatin, undergo surgery, then are randomized to 1 of 2 arms (2 vs 4 additional cycles of cisplatin).

GROUP B1 ARM 4-CDDP: Patients receive cisplatin IV over 6 hours on day 1. Treatment repeats every 14 days for up to 4 total cycles (2 pre-surgery, 2 post-surgery) in the absence of disease progression or unacceptable toxicity.

GROUP B1 ARM 6-CDDP: Patients receive cisplatin IV over 6 hours on day 1. Treatment repeats every 14 days for up to 6 total cycles(2 pre-surgery, 4 post-surgery) in the absence of disease progression or unacceptable toxicity.

GROUP B2 (UNRESECTABLE): Patients receive cisplatin IV over 6 hours on day 1. Treatment repeats every 14 days for up to 6 total cycles (4 pre-surgery, 2 post-surgery). Patients with resectable tumors undergo surgery, then all patients continue with 2 additional cycles of cisplatin.

GROUP C (INTERMEDIATE RISK HB): Patients are randomized to 1 of 2 arms.

GROUP C ARM CDDP: Patients receive cisplatin IV over 6 hours on day 1. Treatment repeats every 14 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo surgery after cycle 2 or 4.

GROUP C ARM C5VD: Patients receive cisplatin IV over 6 hours on day 1, 5-fluorouracil IV over 1-15 minutes, vincristine sulfate IV over 1 minute on days 1, 8, and 15 and doxorubicin IV over 1-15 minutes on days 1 and 2. Treatment repeats every 21 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo surgery after cycle 2 or 4.

GROUP D (HIGH RISK HB): SIOPEL-4 IV INDUCTION: Patients receive cisplatin IV over 6 hours on days 1, 8, and 15 (for cycles 1 and 2) and days 1 and 8 (for cycle 3) and doxorubicin IV over 1-15 minutes on days 8 and 9 (for cycles 1 and 2) and days 1 and 2 (for cycle 3). Cycles 1 and 2 are 28 days; cycle 3 is 21 days. Patients are then assigned to 1 of 2 arms.

GROUP D1: CONSOLIDATION THERAPY: Patients with lung complete remission (either with chemotherapy and/or surgery) receive carboplatin IV over 1 hour on day 1 and doxorubicin IV over 1-15 minutes on days 1 and 2. Treatment repeats every 21 days for 3 cycles in the absence of disease progression or unacceptable toxicity.

GROUP D2: Patients with residual metastatic disease are randomized to 1 of 2 arms.

GROUP D2 ARM CE: Patients receive carboplatin IV over 1 hour on days 1 and 2, doxorubicin IV over 1-15 minutes on days 1 and 2 during cycles 1, 3 and 5, and carboplatin IV over 1 hour and etoposide IV over 2 hours on day 1 and 2 of cycles 2, 4 and 6. Treatments repeat every 21 days for 6 cycles in the absence of disease progression or unacceptable toxicity.

GROUP D2 ARM VI: Patients receive carboplatin IV over 1 hour on days 1 and 2 and doxorubicin IV over 1-15 minutes on days 1 and 2 during cycles 1, 3 and 5. Patients also receive vincristine sulfate IV over 1 minute on days 1 and 8 and irinotecan IV over 60-90 minutes once daily (QD) on days 1 to 5 of cycles 2, 4 and 6. Treatments repeat every 21 days for 6 cycles in the absence of disease progression or unacceptable toxicity.

GROUP E (RESECTED HCC): Patients are assigned to 1 of 2 groups.

GROUP E1: Patients with HCC secondary to underlying hepatic disease undergo observation only.

GROUP E2 (PLADO): Patients with de novo HCC receive cisplatin IV over 6 hours on day 1 and doxorubicin IV over 1-15 minutes on days 1 and 2 following surgery. Treatments repeat every 21 days for 4 cycles in the absence of disease progression or unacceptable toxicity.

GROUP F (UNRESECTED AND/OR METASTATIC HCC): Patients are randomized to 1 of 2 arms.

GROUP F ARM 1 (PLADO): Patients receive cisplatin IV over 6 hours on day 1, doxorubicin IV over 1-15 minutes on days 1 and 2 and sorafenib orally (PO) twice daily (BID) on days 3-21. Treatments repeat every 21 days for up to 3 cycles in the absence of disease progression or unacceptable toxicity. Patients may undergo surgery, if tumors are resectable, or receive an additional 3 cycles of the treatment.

GROUP F ARM 2 (P/GEMOX): Patients receive cisplatin IV over 6 hours on day 1, doxorubicin IV over 1-15 minutes on days 1 and 2 and sorafenib PO BID on days 3-14 of cycles 1 and 3. Patients also receive gemcitabine IV over 90 minutes on day 1, oxaliplatin IV over 2 hours on day 1 and sorafenib PO on days 1-14 of cycles 2 and 4. Patients may undergo surgery, if tumors are resectable, or receive an additional 4 cycles of the treatment.

After completion of study treatment, patients are followed up for a minimum of 2 years.

Inclusion Criteria

• Patients in Group F must have a body surface area (BSA) >= 0.6 m^2
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1, or 2; use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age; patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score
• Patients must be newly diagnosed with histologically-proven primary pediatric hepatic malignancies including hepatoblastoma or hepatocellular carcinoma, except as noted below; patients with a diagnosis of hepatocellular neoplasm, not otherwise specified, should be classified and treated per hepatoblastoma treatment arms; note that rapid central pathology review is required in some cases; please note: all patients with histology as assessed by the institutional pathologist consistent with pure small cell undifferentiated (SCU) HB will be required to have testing for INI1/SMARCB1 by immunohistochemistry (IHC) according to the practices at the institution
• Patients with histology consistent with pure SCU must have positive INI1/SMARCB1 staining

• For all Group A patients, WDF status as determined by rapid review will be used to further stratify patients to Group A1 or A2

  • For Groups B, C and D, rapid review is required if patients are either >= 8 years of age or have an alphafetoprotein (AFP) =< 100 at diagnosis
  • For all Groups E and F patients, rapid central pathology review is required

• In emergency situations when a patient meets all other eligibility criteria and has had baseline required observations, but is too ill to undergo a biopsy safely, the patient may be enrolled without a biopsy

  • Clinical situations in which emergent treatment may be indicated include, but are not limited to, the following circumstances:

    • Anatomic or mechanical compromise of critical organ function by tumor (e.g., respiratory distress/failure, abdominal compartment syndrome, urinary obstruction, etc.)
    • Uncorrectable coagulopathy

  • For a patient to maintain eligibility for AHEP1531 when emergent treatment is given, the following must occur:

    • The patient must have a clinical diagnosis of hepatoblastoma, including an elevated alphafetoprotein (AFP), and must meet all AHEP1531 eligibility criteria at the time of emergent treatment
    • Patient must be enrolled on AHEP1531 prior to initiating protocol therapy; a patient will be ineligible if any chemotherapy is administered prior to AHEP1531 enrollment
  • Note: If the patient receives AHEP1531 chemotherapy emergently PRIOR to undergoing a diagnostic biopsy, pathologic review of material obtained in the future during either biopsy or surgical resection must either confirm the diagnosis of hepatoblastoma or not reveal another pathological diagnosis to be included in the analysis of the study aims
• Patients may have had surgical resection of the hepatic malignancy prior to enrollment; all other anti-cancer therapy for the current liver lesion is prohibited

• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 60 mL/min/1.73 m^2 or

  • A serum creatinine based on age/gender as follows:

    • Age: maximum serum creatinine (mg/dL)
    • 1 month to < 6 months: 0.4 (male and female)
    • 6 months to < 1 year: 0.5 (male and female)
    • 1 to < 2 years: 06 (male and female)
    • 2 to < 6 years: 0.8 (male and female)
    • 6 to < 10 years: 1 (male and female)
    • 10 to < 13 years: 1.2 (male and female)
    • 13 to < 16 years: 1.5 (male), 1.4 (female)
    • >= 16 years: 1.7 (male), 1.4 (female)
• Total bilirubin =< 5 x upper limit of normal (ULN) for age
• Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) < 10 x upper limit of normal (ULN) for age
• Shortening fraction of >= 28% by echocardiogram (for patients on doxorubicin-containing regimens [Groups C, D, E2, and F] assessed within 8 weeks prior to study enrollment) or
• Ejection fraction of >= 47% by echocardiogram or radionuclide angiogram (for patients on doxorubicin-containing regimens [Groups C, D, E2, and F] assessed within 8 weeks prior to study enrollment)
• Group F patients only: QT/corrected QT (QTc) interval =< 450 milliseconds for males and =< 470 milliseconds for females (assessed within 8 weeks prior to study enrollment)
• Normal pulmonary function tests (including diffusion capacity of the lung for carbon monoxide [DLCO]) if there is clinical indication for determination (e.g. dyspnea at rest, known requirement for supplemental oxygen) (for patients receiving chemotherapy [Groups A, B, C, D, E2, F]); for patients who do not have respiratory symptoms or requirement for supplemental oxygen, pulmonary function tests (PFTs) are NOT required
• All patients and/or their parents or legal guardians must sign a written informed consent
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met

Exclusion Criteria

• Prior chemotherapy or tumor directed therapy (i.e. radiation therapy, biologic agents, local therapy (embolization, radiofrequency ablation, and laser); therefore, patients with a pre-disposition syndrome who have a prior malignancy are not eligible
• Patients who are currently receiving another investigational drug
• Patients who are currently receiving other anticancer agents
• Patients with uncontrolled infection
• Patients who previously received a solid organ transplant, other than those who previously received an orthotopic liver transplantation (OLT) as primary treatment of their hepatocellular carcinoma
• Patients with hypersensitivity to any drugs on their expected treatment arm
• Group C: Patients who have known deficiency of dihydropyrimidine dehydrogenase (DPD)

• Group D:

  • Patients with chronic inflammatory bowel disease and/or bowel obstruction
  • Patients with concomitant use of St. John's wort, which cannot be stopped prior to the start of trial treatment

• Group F:

  • Patients with peripheral sensitive neuropathy with functional impairment
  • Patients with a personal or family history of congenital long QT syndrome

• These criteria apply ONLY to patients who may receive chemotherapy (all groups other than Group E1):

  • Female patients who are pregnant since fetal toxicities and teratogenic effects have been noted for several of the study drugs; a pregnancy test is required for female patients of childbearing potential
  • Lactating females who plan to breastfeed their infants

  • Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation

    • Note for Group F: patients of childbearing potential should use effective birth control during treatment with sorafenib and for at least 2 weeks after stopping treatment

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Centres

Study Description

Brief Summary:

This phase Ib trial investigates the side effects of the combination of nivolumab and ipilimumab, and to see how well they work in treating patients with cancers that have come back (relapsed) or does not respond to treatment (refractory) and have an increased number of genetic changes. Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Tumor mutational burden (TMB) is the total amount of genetic changes or "mutations" found in tumor cells. Some studies in adults with cancer have shown that patients with a higher TMB (an increased number of genetic changes) are more likely to respond to immunotherapy drugs. There is also evidence that nivolumab and ipilimumab can shrink or stabilize cancer in adult patients with cancer. This study is being done to help doctors learn if the combination of nivolumab and ipilimumab can help children, adolescents, and young adults patients live longer.

PART I: Patients undergo collection of tissue samples for TMB level. Patients with elevated TMB may be eligible for Part II.

PART II: 

Dose level -1 (nivolumab). Patients receive nivolumab IV over 30-90 minutes on days 1 and 15. Treatment repeats every 28 days for up to 26 cycles in the absence of disease progression or unacceptable toxicity.

Dose level 1 (nivolumab, ipilimumab). Patients receive nivolumab IV over 30 minutes and ipilimumab IV over 30-90 minutes on day 1. Treatment repeats every 21 days for 4 cycles in the absence of disease progression or unacceptable toxicity. Patients then receive nivolumab IV over 30-90 minutes on days 1 and 15. Treatment repeats every 28 days for up to 23 cycles in the absence of disease progression or unacceptable toxicity.

Inclusion Criteria

• PART 1: Patients must have histologically or cytologically confirmed malignancy at the time of initial diagnosis, relapse, or recurrence. Patients must have recurrent or refractory cancer for which standard curative or palliative measures do not exist or are no longer effective

  • Patients with multiple concurrent and/or sequential neoplasms are eligible
  • Patients with central nervous system (CNS) tumors are eligible, except those with diffuse intrinsic pontine glioma
  • Patients with lymphoma are eligible; patients with leukemia are excluded
  • Chemotherapy-naïve patients are eligible in cases where first-line therapy does not include chemotherapy (e.g., surgery only for ependymoma management)

• PART 1: Patients must have evidence of one or more of the following criteria in current or previous tumor:

  • Microsatellite instability (MSI-H)
  • Mutation causing functional loss of mismatch repair gene expression (MLH1, MSH2, MSH6, PMS2, EPCAM, MSH3)
  • Hypermutation in any tumor (including primary malignancy for patients with relapse or previous cancer diagnoses)
  • Functional mutation of POLE or POLD1 genes
  • A syndrome linked to hypermutant cancer predisposition such as congenital mismatch repair deficiency (CMMRD), Lynch syndrome, or xeroderma pigmentosum (XP) is also permitted
  • Other factors or sequencing evidence not listed above but which may be predictive of hypermutant cancer may be permitted after discussion with the protocol principal investigator

• PART 1: A tumor tissue specimen must be provided for molecular profiling, including TMB analysis. The specimen may be archival or prospective, from a medically necessary surgery, biopsy, or excision. Tissue will not be obtained solely for this trial. A specimen from the time of most recent relapse/progression is preferred, but not mandatory

  • Tissue is preferred. However, if necessary, previously extracted DNA may be used with the approval of the protocol principal investigator if extracted in a clinically certified laboratory and prepared in an Foundation Medicine Inc. (FMI), TMB assay-compatible manner
• PART 1: All patients and/or their parents or legally authorized representatives must have the ability to understand and the willingness to sign a written informed consent. Assent, where appropriate, will be obtained according to local policy. Patients with impaired decision-making capacity will not be excluded

• PART 2: Patients must have histologically or cytologically confirmed malignancy at the time of initial diagnosis, relapse, or recurrence. Patients must have recurrent or refractory cancer for which standard curative or palliative measures do not exist or are no longer effective

  • Patients with multiple concurrent and/or sequential neoplasms are eligible
  • Patients with CNS tumors are eligible, except those with diffuse intrinsic pontine glioma or bulky tumors
  • Patients with lymphoma are eligible (provided other criteria, such as bone marrow function, are met); patients with leukemia are excluded
  • Chemotherapy-naive patients are eligible in cases where first-line therapy does not include chemotherapy (e.g., surgery only for ependymoma management)

• PART 2: Patients must have measurable disease

  • Patients with neuroblastoma without measurable soft tissue but with iobenguane (MIBG) avid disease are eligible
  • Patients with bone marrow only disease are excluded
• PART 2: Patients must have confirmation of cancer with a TMB of >= 10 mutations (mut)/megabase (Mb) as determined by an next generation sequencing (NGS) targeted cancer gene panel performed by Foundation Medicine Inc. (FMI). Proof of TMB eligibility can be from Part 1 participation or a previously acquired FMI report

• PART 2: Patients must have recovered from the acute toxic effects of all prior anti-cancer therapies (with the exception of alopecia and lymphopenia)

  • Previous treatment with nivolumab and/or other anti-PD-1/PD-L1 inhibitors is permitted
  • Previous treatment with ipilimumab and/or other anti-CTLA-4 inhibitors is permitted
  • Previous treatment with combined anti-PD-1/PD-L1 and anti-CTLA-4 inhibitors is not be permitted

• PART 2: The following time periods apply for prior therapy. Patients must have:

  • Cytotoxic chemotherapy: At least 21 days prior to treatment initiation from the last dose of cytotoxic or myelosuppressive chemotherapy; at least 42 days if prior nitrosourea (such as lomustine, CCNU)
  • Hematopoietic growth factors: At least 7 days prior to treatment initiation from the last dose of short-acting growth factor; at least 14 days for long-acting
  • Anti-cancer agents not known to be myelosuppressive: At least 7 days prior to treatment initiation from the last dose
  • Interleukins, interferons, and cytokines (other than hematopoietic growth factors): At least 21 days prior to treatment initiation from the last dose
  • Antibodies: At least 21 days prior to treatment initiation from the last dose and toxicity related to prior antibody therapy must be recovered to grade =< 1
  • Radiotherapy: At least 14 days prior to treatment initiation from local radiotherapy; at least 150 days from total body irradiation (TBI), craniospinal radiotherapy, or radiation to >= 50% of the pelvis; at least 42 days from other substantial bone marrow radiation
  • Radiopharmaceutical therapy (e.g., 131I-MIBG): At least 42 days prior to treatment initiation from systemically administered radiopharmaceutical therapy
  • Autologous stem cell infusion including boost infusion: At least 42 days prior treatment initiation
  • Cellular therapy: At least 42 days prior to treatment initiation from any type of cellular therapy
• PART 2: Lansky play score >= 50 if =<16 years of age; Karnofsky performance scale >= 50 if =< 16 years of age. Patients unable to walk due to paralysis but who are using a wheelchair will be considered ambulatory for the purpose of assessing performance status
• PART 2: Peripheral absolute neutrophil count (ANC) >= 750/mm^3 (0.75 x 10^9/L)
• PART 2: Platelet count >= 75,000/mm^3 (75 x 10^9/L), transfusion independent, defined as not receiving platelet transfusions at least 7 days prior to treatment initiation

• PART 2: Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 60 mL/min/1.73 m^2; OR serum creatinine based on age/gender as follows:

  • Age: 1 to < 2 years; Maximum serum creatinine: 0.6 mg/dL; 53 umol/L (male); 0.6 mg/dL; 53 umol/L (female)
  • Age: 2 to < 6 years; Maximum serum creatinine: 0.8 mg/dL; 71 umol/L (male); 0.8 mg/dL; 71 umol/L (female)
  • Age: 6 to < 10 years; Maximum serum creatinine: 1 mg/dL; 88 umol/L (male); 1 mg/dL; 88 umol/L (female)
  • Age: 10 to < 13 years; Maximum serum creatinine: 1.2 mg/dL; 106 umol/L (male); 1.2 mg/dL; 106 umol/L (female)
  • Age: 13 to < 16 years; Maximum serum creatinine: 1.5 mg/dL; 133 umol/L (male); 1.4 mg/dL; 124 umol/L (female)
  • Age: >= 16 years; Maximum serum creatinine: 1.7 mg/dL; 150 umol/L (male); 1.4 mg/dL; 124 umol/L (female)
• PART 2: Bilirubin (sum of conjugated and unconjugated) =< 1.5 x upper limit of normal (ULN) for age
• PART 2: Alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 135 U/L (i.e., 3 x ULN). For the purposes of this study, the ULN for ALT (SGPT) is 45 U/L
• PART 2: No evidence of dyspnea at rest, no exercise intolerance due to pulmonary insufficiency, and pulse oximetry >= 92% while breathing room air
• PART 2: No signs or symptoms of heart failure in a patient who has no history of congestive heart failure, no prior exposure to cardiotoxic drugs, and no radiotherapy to the heart; OR shortening fraction of >= 27% or ejection fraction of >= 50% by echocardiogram
• PART 2: Serum lipase =< ULN at screening

• PART 2: Patients with treated CNS metastasis are eligible if there is no evidence of progression for at least 4 weeks after CNS-directed treatment as ascertained by clinical examination and brain imaging (magnetic resonance imaging [MRI] or computed tomography [CT] scan) during screening

  • Patients with new or progressive CNS metastasis (active metastasis) or leptomeningeal disease are eligible if the treating physician determines that immediate CNS-directed treatment is not required and is unlikely to be required for at least 6 weeks after treatment initiation, and a risk-benefit analysis (discussion) by the patient and investigator favors participation in the trial

• PART 2: Human immunodeficiency virus (HIV): Infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months prior to treatment initiation are eligible

  • Note: Routine screening for HIV status prior to enrollment is not required

• PART 2: Hepatitis B virus (HBV): Patients with evidence of chronic infection with undetectable viral load are eligible. Suppressive therapy, if indicated, is allowed

  • Note: Routine screening for HBV status prior to enrollment is not required

• PART 2: Hepatitis C virus (HCV): Infected patients currently on treatment with undetectable viral load are eligible. Patients with history of infection must have been treated and cured

  • Note: Routine screening for HCV status prior to enrollment is not required
• PART 2: Patients must provide a pre-treatment tumor tissue specimen (baseline sample) for correlative exploratory biology studies. The specimen may be archival or prospective, from a medically necessary surgery, biopsy, or excision. Tissue will not be obtained solely for this trial. A specimen from the time of most recent relapse/progression is preferred, but not mandatory. Submission of a representative sample from all available lesions (archival and prospective) is strongly encouraged. If available, residual tissue from Part 1 may be used to fulfill the baseline tissue sample requirement; however additional tissue may be required if residual tissue is insufficient
• PART 2: All patients and/or their parents or legally authorized representatives must have the ability to understand and the willingness to sign a written informed consent. Assent, where appropriate, will be obtained according to local policy. Patients with impaired decision-making capacity will not be excluded
• PART 2: Patients with previous grade 4 life-threatening reaction or other adverse reaction that in the opinion of the investigator would preclude administrating therapy

Exclusion Criteria

• PART 1: Patients with history of autoimmune disease
• PART 1: Patients with history of interstitial lung disease or pneumonitis are not eligible
• PART 1: Patients who have received solid organ transplant or allogenic stem cell transplant are not eligible
• PART 1: Patients who have been previously treated with a combination of anti-PD-1/PD-L1 and anti-CTLA-4 inhibitors are not eligible

• PART 2: Patients requiring systemic corticosteroids or other forms of immunosuppressive therapy within 7 days prior to treatment initiation are not eligible

  • Following treatment initiation, systemic corticosteroids or other forms of immunosuppressive therapy are permitted if administered for the treatment of toxicity, tumor flare, or pseudo-progression and can be tapered. In most cases study treatment must be held until the dose is tapered to 10 mg/day prednisone or equivalent. The protocol principal investigator must be consulted prior to resuming treatment
  • Physiologic corticosteroids up to 5 mg/day prednisone or equivalent are permitted
  • Topical, ocular, intra-articular, intra-nasal, inhaled corticosteroids are permitted
  • Patients with CNS tumors receiving steroids for intracranial mass effect must be able to discontinue these at least 7 days prior to treatment initiation
• PART 2: Patients who are receiving other anticancer agent(s) are not eligible
• PART 2: Patients who are receiving or have received any other investigational agent(s) within 14 days prior to treatment initiation are not eligible

• PART 2: Patients with CNS tumors with any of the following characteristics on imaging are not eligible:

  • Tumor with any evidence of uncal herniation or mass effect leading to severe midline shift
  • Tumor > 6 cm in single maximal dimension
  • Tumor that in the opinion of the investigator shows significant mass effect
• PART 2: Patients with uncontrolled intercurrent illness/condition that would limit compliance with the study requirements are not eligible. This includes, but is not limited to, ongoing active infection, symptomatic congestive heart failure (New York Heart Association class III or IV), unstable angina pectoris, cardiac arrhythmia, psychiatric illness/social situations

• PART 2: The study agents have the potential for teratogenic or abortifacient effects. Females of reproductive potential must have a negative serum pregnancy test within 72 hours prior to treatment initiation. Additional pregnancy tests (serum or urine) should be obtained during study participation in accordance with local standards and guidelines

  • Males or females of reproductive potential may not participate unless they have agreed to use an effective method of contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of treatment, and as follows:

    • Females receiving nivolumab must continue an effective method of contraception for a period of 5 months after the last dose of nivolumab
    • Males receiving nivolumab must continue an effective method of contraception for a period of 7 months after the last dose of nivolumab
  • Should a female patient become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform the investigator immediately
  • Due to the unknown but potential risk for adverse events (AEs) in nursing infants secondary to treatment of the mother with the study agents, breastfeeding must be discontinued if the mother is treated on study
  • Note: Females of reproductive potential are defined as those who are past the onset of menarche and are not surgically sterile (i.e., bilateral salpingectomy, bilateral oophorectomy, complete hysterectomy)

• PART 2: Patients with history of autoimmune disease (such as autoimmune thyroid disease or inflammatory bowel disease) that has required systemic treatment within 2 years prior to treatment initiation are not eligible

  • Asymptomatic laboratory abnormalities (e.g., antinuclear antibody [ANA], rheumatoid factor, altered thyroid studies) are permitted in the absence of an autoimmune disorder diagnosis
  • Atopy-related conditions (e.g., asthma, allergic rhinitis, atopic dermatitis) are permitted
  • Replacement therapy (e.g., thyroxine, insulin, physiological corticosteroid replacement therapy) is not considered a form of systemic treatment
• PART 2: Patients with history of interstitial lung disease or pneumonitis are not eligible
• PART 2: Patients who have received solid organ transplant or allogenic stem cell transplant are not eligible

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Centres

Study Description

This is a study to investigate the efficacy and safety of ADP-A2M4 in HLA-A*02 eligible and MAGE-A4 positive subjects with metastatic or inoperable (advanced) Synovial Sarcoma (Cohort 1, 2 and 3 ) or MRCLS (Cohort 1) .

Inclusion Criteria

• Age ≥16 (10 years at selected sites) and <=75 years
• Diagnosis of advanced synovial sarcoma (Cohort 1, Cohort 2 and Cohort 3) or myxoid liposarcoma / myxoid round cell liposarcoma (Cohort 1 only) confirmed by cytogenetics.
• Previously received either an anthracycline or ifosfamide containing regimen.
• Measurable disease according to RECIST v1.1 prior to lymphodepletion
• HLA-A*02:01, HLA-A*02:02, HLA-A*02:03 or HLA-A*02:06 positive
• Tumor shows MAGE-A4 expression confirmed by central laboratory. North America Only (United States and Canada): Tumor (either an archival specimen or a fresh biopsy) shows MAGE-A4 expression of ≥1+ staining in ≥10% of the cells by immunohistochemistry.
• ECOG Performance Status of 0 or1. For subjects aged ≥10 to ≥16 years old: Lansky Score ≥60%.
• Left ventricular ejection fraction (LVEF) ≥50%.

Note: other protocol defined Inclusion criteria may apply

Exclusion Criteria

• HLA-A*02:05 in either allele
• Received or plans to receive the following therapy/treatment prior to leukapheresis or lymphodepleting chemotherapy: Cytotoxic chemotherapy, Tyrosine kinase inhibitor (TKI) (e.g. pazopanib), Immune therapy (including monoclonal antibody therapy, checkpoint inhibitors,), Anti-cancer Vaccine, Gene therapy using an integrating vector (subjects who have received a gene therapy using a lentiviral vector may be eligible for the study), Corticosteroids or any other immunosuppressive therapy, Investigational treatment or interventional clinical trial, Allogeneic hematopoietic stem cell transplant, Radiotherapy to the target lesions, Major surgery
• History of allergic reactions attributed to compounds of similar chemical or biologic composition to fludarabine, cyclophosphamide or other agents used in the study.
• History of autoimmune or immune mediated disease
• Symptomatic CNS metastases including leptomeningeal disease.
• Other prior malignancy that is not considered by the Investigator to be in complete remission
• Clinically significant cardiovascular disease
• Uncontrolled intercurrent illness
• Active infection with human immunodeficiency virus, hepatitis B virus, hepatitis C virus, or human T cell leukemia virus
• Pregnant or breastfeeding

Note: other protocol defined Exclusion criteria may apply.

Publications

A kinase-cGAS cascade to synthesize a therapeutic STING activator - PubMed (nih.gov)

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Centres

Study Description

This study will be evaluating the safety and tolerability of CFI-400945 in subjects with Acute Myeloid Leukemia, Myelodysplastic Syndrome or Chronic Myelomonocytic Leukemia. The study is designed to build on encouraging data from another study and to obtain further safety, efficacy, pharmacokinetics (PK) and pharmacodynamics (PD) data of CFI-400945.

Inclusion Criteria

1. Patients must be >18 years of age
2. For Parts 1A and 1B, the following malignancy types will be included:
   • Relapsed or refractory AML.
   • MDS, after prior hypomethylating agents.
   • CMML, with progressive disease/lack of response after hypomethylating agents
3. For Parts 2A and 2B, the following malignancy types will be included:
   • Relapsed or Refractory AML.
   • MDS patients should be limited to high risk disease
   • MDS or CMML should be previously untreated and patients with AML may have relapsed or refractory disease;
4. Have clinically acceptable laboratory screening results (i.e., clinical chemistry, hematology, and urinalysis) within certain limits per protocol.
5. Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

Other inclusion criteria may apply 

Exclusion Criteria

1. Patients who have received investigational therapy, radiotherapy, immunotherapy, monoclonal antibodies, or chemotherapy within 14 days or 5 half-lives (whichever is shorter)
2. Allogeneic or autologous transplant for AML with infusion of stem cells within 90 days before Cycle 1 Day 1, or on active immunosuppressive therapy for graft-versus-host disease (GVHD) or GVHD prophylaxis within 2 weeks of Cycle 1 Day 1.
3. Any Grade ≥ 2 persistent non-hematological toxicity related to allogeneic transplant, such as those requiring systemic immunosuppressive therapy.

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Centres

Study Description

New York esophageal antigen-1 (NY-ESO-1) and LAGE-1a antigens are tumor-associated proteins that have been found in several tumor types. Clinical trials using adoptively transferred T cells directed against NY-ESO-1/LAGE-1a have shown objective responses. Letetresgene autoleucel (lete-cel, GSK3377794) is the first generation of NY-ESO-1 specific T-cell receptor engineered T cells. This is a master protocol investigating T-cell therapies. It will initially consist of a core protocol with two independent substudies investigating Letetresgene autoleucel in previously untreated (1L) Human Leukocyte Antigen (HLA)-A*02+ participants with NY-ESO-1+ advanced (metastatic or unresectable) synovial sarcoma (SS) or myxoid/round cell liposarcoma (MRCLS) (Substudy 1) and Letetresgene autoleucel as second line or higher (2L+) treatment in HLA-A*02+ participants with NY-ESO-1+ advanced (metastatic or unresectable) SS or MRCLS who have progressed following treatment with anthracycline based chemotherapy (Substudy 2).

Inclusion Criteria

• Participant must be greater than or equal to 10 years of age on the day of signing informed consent.
• Participant must be positive for HLA-A*02:01, HLA-A*02:05, and/or HLA-A*02:06 alleles by a designated central laboratory
• Participant's tumor is positive for NY-ESO-1 expression by a designated central laboratory.
• Participant has a diagnosis of synovial sarcoma (SS) or myxoid/round cell liposarcoma (MRCLS)
• Performance status: dependent on age - Lansky > 60, Karnofsky > 60, Eastern Cooperative Oncology Group 0-1.
• Participant must have adequate organ function and blood cell counts, within 7 days prior to leukapheresis.
• At time of treatment, participant has measurable disease according to RECIST v1.1.
• Consultation for prior history per protocol specifications.

Exclusion Criteria

• Central nervous system metastases.
• Any other prior malignancy that is not in complete remission.
• Clinically significant systemic illness.
• Prior or active demyelinating disease.
• History of chronic or recurrent (within the last year prior to leukapheresis) severe autoimmune or immune mediated disease (e.g. Crohn's disease, systemic lupus) requiring steroids or other immunosuppressive treatments.
• Previous treatment with genetically engineered NY-ESO-1-specific T cells.
• Previous NY-ESO-1 vaccine or NY-ESO-1 targeting antibody.
• Prior gene therapy using an integrating vector.
• Previous allogeneic hematopoietic stem cell transplant.
• Washout periods for prior radiotherapy and systemic chemotherapy must be followed.
• Participant had major surgery in less than or equal to 28 days of first dose of study intervention.
• Prior radiation exceeds protocol specified limits.

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Centres

Study Description

Desmoid tumors, also referred to as aggressive fibromatosis, are rare, locally invasive, slow growing soft tissue tumors. Although considered benign because of their inability to metastasize, desmoid tumors can cause significant morbidity and occasionally mortality in patients.

Nirogacestat (PF-03084014) is a potent, small molecule, selective, reversible, noncompetitive inhibitor of γ-secretase (GS) with a potential antitumor activity.

Nirogacestat is being investigated for the treatment of desmoid tumors due to its ability to bind to GS, blocking proteolytic activation of Notch receptors. Previous clinical study data have shown that Notch signaling plays an important role in cancer development. Hence, inhibition of Notch signaling is an important strategy for therapeutic treatment.

Inclusion Criteria

Double-Blind Key Inclusion Criteria:

• Participant has histologically confirmed DT/AF (by local pathologist prior to informed consent) that has progressed by ≥ 20% as measured by RECIST v1.1 within 12 months of the screening visit scan.
• Participant has: 
  • Refractory, measurably progressing DT/AF following at least one line of therapy.
  • Recurrent, measurably progressing DT/AF following at least one line of therapy; OR
  • Treatment naïve, measurably progressing DT/AF that is deemed not amenable to surgery without the risk of significant morbidity; OR
• Participant has a DT/AF tumor where continued progressive disease will not result in immediate significant risk to the participant.
• Participant agrees to provide archival or new tumor tissue for re-confirmation of disease.
• If participant is currently being treated with any therapy for the treatment of DT/AF, this must be completed at least 28 days (or 5 half-lives, whichever is longer) prior to first dose of study treatment. All toxicities from prior therapy must be resolved to ≤ Grade 1 or clinical baseline.
• Participants who are receiving chronic nonsteroidal anti-inflammatory drugs (NSAIDs) as treatment for conditions other than DT/AF must be receiving them prior to the documented DT/AF progressive disease (inclusion criteria 2) and on a stable dose for at least 28 days prior to first dose of study treatment.
• Participant has an Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2 at screening.
• Participant has adequate organ and bone marrow function.

Open-Label Key Inclusion: 

• Participant is enrolled in the double-blind phase when the estimated number of PFS events have been observed and the primary PFS analysis has been completed; OR
• Participant is randomized to receive placebo in the double-blind phase and Central Imaging Review determines that the participant has radiographic progressive disease; OR
• Participant is randomized to receive nirogacestat in the double-blind phase and Central Imaging Review determines that the participant has radiographic progressive disease but the participant is deriving clinical benefit without significant toxicity (as determined by the investigator).
• Participant has adequate organ and bone marrow function

Exclusion Criteria

Double-Blind Key Exclusion Criteria:

• Participant has known malabsorption syndrome or preexisting gastrointestinal conditions that may impair absorption of nirogacestat.
• Participant has experienced any of the following within 6 months of signing informed consent: clinically significant cardiac disease (New York Heart Association Class III or IV), myocardial infarction, severe/unstable angina, coronary/peripheral artery bypass graft, symptomatic congestive heart failure, cerebrovascular accident, transient ischemic attack, or symptomatic pulmonary embolism.
• Participant has an abnormal QT interval at screening.
• Participant is using concomitant medications that are known to prolong the QT/QTcF interval including Class Ia and Class III antiarrhythmics at the time of informed consent. Non-antiarrhythmic medications which may prolong the QT/QTcF interval are allowed provided the participant does not have additional risk factors for Torsades de Pointes (TdP)
• Participant has congenital long QT syndrome.
• Participant has a history of additional risk factors for Torsades de Pointes (TdP) (e.g., heart failure, hypokalemia, family history of Long QT Syndrome).
• Participant has had lymphoma, leukemia, or any malignancy within the past 5 years at the time of informed consent, except for any locally recurring cancer that has been treated curatively (e.g., resected basal or squamous cell skin cancer, superficial bladder cancer, carcinoma in situ of the cervix or breast), with no evidence of metastatic disease for 3 years at the time of informed consent.
• Participant has current or chronic history of liver disease or known hepatic or biliary abnormalities (except for Gilbert's syndrome or asymptomatic gallstones).
• Participant previously received or is currently receiving therapy with GS inhibitors or anti-Notch antibody therapy.
• Participant is currently using any treatment for DT/AF including tyrosine kinase inhibitors (TKIs), NSAIDs (chronic daily use) or any investigational treatment 28 days (or 5 half-lives, whichever is longer) prior to the first dose of study treatment.

OR

Participant has started any treatment for DT/AF after the documented DT/AF progressive disease.

• Participant is currently using or anticipates using food or drugs that are known strong/moderate cytochrome P450 3A4 (CYP3A4) inhibitors, or strong CYP3A inducers within 14 days prior to the first dose of study treatment.
• Participant has a positive human immunodeficiency virus antibody test.
• Participant has presence of Hepatitis B surface antigen at screening.
• Participant has a positive Hepatitis C antibody or Hepatitis C ribonucleic acid (RNA) test result at screening or within 3 months prior to starting study treatment.
• Participant is unable to tolerate MRI or for whom MRI is contraindicated.
• Participant with active or chronic infection at the time of informed consent and during the screening period.
• Participant has experienced other severe acute or chronic medical or psychiatric conditions within 1 year of signing informed consent.
• Participant is unable to comply with study related procedures (including, but not limited to, the completion of electronic patient report outcomes (ePROs), or the ePRO questionnaires are not available in the participant's preferred language).

Open-Label Key Exclusion

• Participant requires surgery to prevent organ dysfunction.
• Participant has prematurely discontinued from the double-blind phase for any reason other than radiographic progressive disease (as determined by Central Imaging Review).
• Participant developed a concurrent illness/condition that, in the opinion of the investigator, would represent a risk to overall health if they enroll in this study.
• Participant has initiated a new treatment for DT/AF after the Central Imaging Review determines that a participant has radiographic progressive disease.

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Centres

Study Description

This is a multicenter, randomized phase II trial with an initial safety run-in to test the safety and efficacy of neoadjuvant pembrolizumab with image-guided radiotherapy and adjuvant pembrolizumab compared to radiation therapy alone in patients with clinically localized extremity soft tissue sarcoma at high risk for developing metastatic disease (tumor size > 5 cm, intermediate- to high-grade; approximately 50% risk for distant disease at 2 years).

Histologies will be limited to undifferentiated pleomorphic sarcoma and dedifferentiated/pleomorphic liposarcoma based on preliminary data from SARC028. Other terms for undifferentiated pleomorphic sarcoma may include, but are not limited to. pleomorphic undifferentiated sarcoma, unclassified spindle cell sarcoma, spindle cell sarcoma not otherwise specified, pleomorphic spindle cell sarcoma, pleomorphic fibroblastic sarcoma, undifferentiated high-grade pleomorphic sarcoma, pleomorphicsarcoma with prominent inflammation, pleomorphic sarcoma with giant cells, malignant fibrous histiocytoma (including storiform-pleomorphic and inflammatory subtypes), fibrosarcoma, and myxofibrosarcoma (located deep to the fascia in muscle).

Radiation therapy with three cycles of pembrolizumab will be administered as neoadjuvant therapy for patients randomized to the experimental arm. These patients will also receive up to fourteen cycles of adjuvant pembrolizumab after surgical resection. Patients in the standard of care arm will receive neoadjuvant radiotherapy (50 Gy in 25 fractions) followed by surgical resection as in RTOG 0630.

Inclusion Criteria

• Age ≥ 12 years
• Histologically confirmed diagnosis of grade 2 or 3 out of 3 UPS or dedifferentiated/pleomorphic LPS of the extremity (including limb girdle, i.e. shoulder or hip) that measures greater than 5 cm in any direction as assessed by imaging
• Patients with non-melanomatous skin cancer, in situ carcinoma, or low-risk prostate cancer can be enrolled.
• ECOG Performance Status of 0 or 1
• Resectable primary tumor with no evidence of metastatic disease by imaging.
• Adequate organ function within 10 days of Day 1
• Written, voluntary informed consent
• Fertile men and women of childbearing potential must agree to use an effective method of birth control from Day 1 of study and for 120 days after last pembrolizumab administration in both sexes. Women of childbearing potential include pre-menopausal women and women within the first 2 years of the onset of menopause. Women of childbearing potential must have a negative pregnancy test ≤ 72 hours prior to Day 1 of study.

Exclusion Criteria

• Prior chemotherapy, targeted small molecule therapy, or radiation therapy for current diagnosis of sarcoma
• Prior radiation therapy in excess of 20 Gy to the site of the current diagnosis of sarcoma. No overlap with prior radiation fields in excess of 20 Gy is allowed.
• Concurrent, clinically significant, active malignancies within two years of study enrollment.
• Patients with locally recurrent sarcoma after surgery alone are eligible for enrollment if other inclusion criteria are met.
• Patients with severe and/or uncontrolled concurrent medical disease that in the opinion of the investigator could cause unacceptable safety risks or compromise compliance with the protocol
• Major surgery within four weeks prior to Day 1 of study or who have not recovered adequately from prior surgery.
• Currently receiving a study therapy or if they had an investigational agent within 4 weeks at the time of enrollment.
• Women who are pregnant or nursing/breastfeeding, or expecting to conceive or men who are expecting to father children within the projected duration of the trial, starting with the pre-screening or screening visit through 120 days after the last dose of pembrolizumab.
• Inability to comply with protocol required procedures
• Diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy by oral or IV routes within 7 days prior to the first dose of trial treatment
• Known history of active TB (Bacillus Tuberculosis)
• Hypersensitivity to pembrolizumab or any of its excipients
• Metastatic disease or regional lymph node involvement. Chest CT will be mandatory prior to enrollment to evaluate for the presence of metastatic disease. Pulmonary nodule(s) < 5 mm without a histological diagnosis may not be the basis for study exclusion given the lack of specificity of chest CT. If pulmonary nodule(s) measuring 6 - 10 mm are noted on chest CT but appear stable relative to prior chest imaging of at least 6 months duration or if 18FDG-PET scan indicates that the nodule(s) are unlikely to be metastatic disease, then this is permitted. Pulmonary nodules >10 mm should be considered metastatic unless proven otherwise by biopsy/resection or stable appearance for at least 6 months on imaging.
• Unresectable disease or medically inoperable
• Planned to receive neoadjuvant or adjuvant chemotherapy for current diagnosis of localized soft tissue sarcoma
• Active autoimmune disease that has required systemic treatment in the past two years (i.e. with use of disease modifying agents, systemic corticosteroids or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment.
• Has a history of (non-infectious) pneumonitis that required systemic steroids or current pneumonitis.
• Active infection requiring systemic therapy
• Known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial
• Prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent
• Known history of Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies)
• Known active Hepatitis B (e.g., HBsAg reactive, confirmed by detectable viral load) or Hepatitis C (e.g., HCV RNA [qualitative] detected)
• Received a live vaccine within 30 days of planned start of study therapy. Note: Seasonal influenza vaccines for injection are generally inactivated flu vaccines and are allowed; however intranasal influenza vaccines (e.g., Flu-Mist®) are live attenuated vaccines, and are not allowed.
• Diagnosis of scleroderma.
• Diagnosis of inflammatory bowel disease (Crohn's disease or Ulcerative Colitis).

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Centres

Study Description

This Phase 1, clinical study of CC-96191 will explore the safety, tolerability and preliminary biological and clinical activity of CC-96191 as a single-agent in the setting of Relapsed or refractory acute myeloid leukemia (R/R AML).

The dose escalation (Part A) of the study will explore escalating intravenous doses of CC-96191 to estimate the MTD and/or RP2D of CC-96191 as monotherapy.

The expansion (Part B), will further evaluate the safety and efficacy of CC-96191 administered at or below the MTD in one or more expansion cohorts in order to determine the RP2D.

Inclusion Criteria

• Participant must understand and voluntarily sign an informed consent form (ICF) prior to any study-related assessments/procedures being conducted.
• Participant is ≥ 18 years of age at the time of signing the ICF.
• Relapsed or refractory CD33 positive AML at last visit as defined by the World Health Organization (WHO) Classification who have failed or who are ineligible for or have refused all available therapies for AML which may provide clinical benefit.
• Participant has Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1.
• At least 4 weeks (from first dose) has elapsed from donor lymphocyte infusion without conditioning.
• Females and males must practice true abstinence or agree to contraceptive methods throughout the study, and during the safety follow-up period.

Exclusion Criteria

• Participant is suspected or proven to have acute promyelocytic leukemia (FAB M3) based on morphology, immunophenotype, molecular assay, or karyotype.
• Participant has received systemic anticancer therapy (including investigational therapy) or radiotherapy < 28 days or 5 half-lives, whichever is shorter, prior to the start of study treatment. Hydroxyurea is allowed to control peripheral leukemia blasts.
• Participants with prior autologous hematopoietic stem cell transplant who, in the investigator's judgment, have not fully recovered from the effects of the last transplant (eg, transplant-related side effects).
• Prior allogeneic HSCT with either standard or reduced intensity conditioning ≤ 6 months prior to dosing.
• Participants on systemic immunosuppressive therapy post HSCT at the time of screening, or with clinically significant graft-versus-host disease (GVHD). The use of topical steroids for ongoing skin or ocular GVHD is permitted.
• Participant has persistent, clinically significant non-hematologic toxicities from prior therapies which have not recovered to < Grade 2.
• Participant has or is suspected of having central nervous system (CNS) leukemia. Evaluation of cerebrospinal fluid is only required if CNS involvement by leukemia is suspected during screening.
• History of concurrent second cancers requiring active, ongoing systemic treatment.
• Participant is known seropositive or active infection with human immunodeficiency virus (HIV), or active infection with hepatitis B virus or hepatitis C virus.
• Impaired cardiac function or clinically significant cardiac diseases, as defined in the protocol .
• Participant is a pregnant or lactating female.