Canadian clinical trial registry

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Study Description

The study's purpose is to see if the drug, abemaciclib, is safe and effective when given with other drugs to kill cancer cells. The study is open to children and young adults with solid tumors, including neuroblastoma, that did not respond or grew during other anti-cancer treatment.

Inclusion Criteria

Parts A and B only:

• Participants must be less than or equal to (≤)18 years of age.
• Body weight greater than or equal to (≥)10 kilograms and body surface area (BSA) ≥0.5
• Participants with any relapsed/refractory malignant solid tumor (excluding lymphoma), including central nervous system tumors, that have progressed on standard therapies.
• For sites that are actively enrolling Parts B and C, participants with neuroblastoma who are eligible for Part C will be excluded from Part B unless approved by Lilly CRP/CRS.

Part C only:

• Participants must be less than (<) 21 years of age.
• Participants have a BSA ≥0.3 m².
• Participants with first relapse/refractory neuroblastoma.

All Parts

• Participants must have measurable or evaluable disease by RECIST v1.1 or RANO.
• A Lansky score ≥50 for participants <16 years of age or Karnofsky score ≥50 for participants ≥16 years of age.
• Participants must have discontinued all previous treatments for cancer or investigational agents and must have recovered from the acute effects to Grade ≤1 at the time of enrollment.
• Able to swallow.
• Adequate hematologic and organ function ≤2 weeks (14 days) prior to first dose of study drug.
• Females of reproductive potential must have negative urine or serum pregnancy test at baseline (within 7 days prior to starting treatment).
• Female participants of reproductive potential must agree to use highly effective contraceptive precautions during the trial. For abemaciclib, females should use contraception for at least 3 weeks following the last abemaciclib. For other study drugs, highly effective contraceptive precautions (and avoiding sperm donation) must be used according to their label.
• Life expectancy of at least 8 weeks and able to complete at least 1 cycle of treatment.
• Caregivers and participants willing to make themselves available for the duration of the trial.

Other inclusion and exclusion criteria may apply

Exclusion Criteria

• Received allogenic bone marrow or solid organ transplant.
• Received live vaccination.
• Intolerability or hypersensitivity to any of the study treatments or its components.
• Diagnosed and/or treated additional malignancy within 3 years prior to enrollment that may affect the interpretation of results, with the exception of curatively treated basal cell carcinoma of the skin, squamous cell carcinoma of the skin, and/or curatively resected in situ cervical and/or breast cancers.
• Pregnant or breastfeeding.
• Active systemic infections or viral load.
• Serious and/or uncontrolled preexisting medical condition(s) that would preclude participation in this study.
• Parts A and C only: Have a bowel obstruction.
• Prior treatment with drugs known to be strong inhibitors or inducers of isoenzyme cytochrome P450 3A (CYP3A) or strong inhibitors of uridine diphosphate-glucuronosyl transferase 1A1 (UGT1A1) if the treatment cannot be discontinued or switched to a different medication at least 5 half-lives prior to starting study drug.
• Received prior treatment with cyclin-dependent kinase (CDK) 4 & 6 inhibitor.
• Part C only: Received prior systemic therapy for relapsed/refractory neuroblastoma.
• Currently enrolled in any other clinical study involving an investigational product or non-approved use of a drug or device.
• Has received an experimental treatment in a clinical trial within the last 30 days or 5 half-lives, whichever is longer.

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Study Description

This phase II trial studies how well combination chemotherapy works in treating patients with newly diagnosed stage II-IV diffuse anaplastic Wilms tumors (DAWT) or favorable histology Wilms tumors (FHWT) that have come back (relapsed). Drugs used in chemotherapy regimens such as UH-3 (vincristine, doxorubicin, cyclophosphamide, carboplatin, etoposide, and irinotecan) and ICE/Cyclo/Topo (ifosfamide, carboplatin, etoposide, cyclophosphamide, and topotecan) 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. This trial may help doctors find out what effects, good and/or bad, regimen UH-3 has on patients with newly diagnosed DAWT and standard risk relapsed FHWT (those treated with only 2 drugs for the initial WT) and regimen ICE/Cyclo/Topo has on patients with high and very high risk relapsed FHWT (those treated with 3 or more drugs for the initial WT).

PRIMARY OBJECTIVES:

I. To evaluate whether the addition of vincristine/irinotecan to cyclophosphamide/ carboplatin/etoposide alternating with vincristine/doxorubicin/cyclophosphamide improves the event-free survival (EFS) of patients with newly diagnosed stage 4 diffuse anaplastic Wilms tumor (DAWT) as compared to historical controls.

II. To evaluate whether the addition of vincristine/irinotecan to cyclophosphamide/carboplatin/etoposide alternating with vincristine/doxorubicin/cyclophosphamide improves the EFS of patients with standard-risk relapsed favorable histology Wilms tumor (SRrFHWT) as compared to historical controls.

SECONDARY OBJECTIVES:

I. To evaluate whether the addition of vincristine/irinotecan to cyclophosphamide/carboplatin/etoposide alternating with vincristine/doxorubicin/cyclophosphamide improves the overall survival (OS) of patients with newly diagnosed stage 4 DAWT as compared to historical controls.

II. To evaluate whether the addition of vincristine/irinotecan to cyclophosphamide/carboplatin/etoposide alternating with vincristine/doxorubicin/cyclophosphamide improves the OS of patients with SRrFHWT as compared to historical controls.

III. To evaluate whether the addition of vincristine/irinotecan to cyclophosphamide/carboplatin/etoposide alternating with vincristine/doxorubicin/cyclophosphamide improves the EFS and OS of patients with newly diagnosed stage 2 and 3 DAWT as compared to historical controls.

IV. To establish EFS and OS for high-risk (HRrFHWT) and very high risk (VHRrFHWT) relapsed favorable histology Wilms tumor treated with ifosfamide/carboplatin/etoposide alternating with cyclophosphamide/ topotecan.

EXPLORATORY OBJECTIVES:

I. To describe renal toxicity of ifosfamide/carboplatin/etoposide in HRrFHWT and VHRrFHWT patients using conventional and novel biomarkers of renal toxicity (urine NGAL, cystatin C and Kim1) in the context of the chemotherapy regimens used on this study.

II. To collect and bank serial blood and urine samples in patients with newly diagnosed DAWT or relapsed FHWT and tumor tissue in patients with relapsed FHWT, for future analysis.

III. To assess the impact of p53 gene and protein expression on outcome for patients with newly diagnosed DAWT.

IV. To determine EFS/OS in the subsets of patients with newly diagnosed DAWT or relapsed FWHT who undergo gross total resection at all disease sites at diagnosis or after neoadjuvant chemotherapy.

V. To describe the rate of regional lymph node sampling at the time of nephrectomy with the use of a pre-operative surgical checklist for patients with newly diagnosed DAWT.

VI. To determine the feasibility of intensity modulated radiation therapy (IMRT) with central quality assurance (QA) monitoring to reduce radiation induced toxicity to the heart, thyroid, breast and solitary kidney for children with lung and liver metastases (part of an overarching aim in this study and across frontline favorable histology Wilms tumor studies).

Inclusion Criteria

• Patients with newly diagnosed stages 2 - 4 diffuse anaplastic Wilms tumor must be enrolled on AREN03B2 and have risk assignment or final pathology classification (if at delayed nephrectomy) results available prior to enrollment on AREN1921. Enrollment on AREN03B2 is not applicable for patients with relapsed favorable histology Wilms tumor
• Patients with the following diagnoses are eligible for this study:
  • Newly diagnosed stages 2 - 4 diffuse anaplastic Wilms tumor as confirmed by central review
  • Favorable histology Wilms tumor at first relapse. Relapsed FHWT patients must have previously achieved remission for their initial FHWT diagnosis to be eligible for this study. The relapse risk groups are defined as follows, regardless of radiation therapy:
    • Standard-Risk relapse: Patients who received two chemotherapy agents for frontline therapy; primarily actinomycin D and vincristine
    • High-Risk relapse: Patients who received three chemotherapy agents for frontline therapy; primarily vincristine, actinomycin D and doxorubicin or vincristine, actinomycin D and irinotecan
    • Very High-Risk relapse: Patients who received four or more chemotherapy agents as part of initial therapy; primarily Regimen M or its variations
• Patients with newly diagnosed DAWT must have had histologic verification of the malignancy. For relapsed FHWT patients, biopsy to prove recurrence is encouraged, but not required
  • Note: for relapsed FHWT patients, an institutional pathology report confirming favorable histology Wilms tumor (from relapse, if available, or from original diagnosis) must be available for upload prior to initiation of protocol therapy
• Patients with newly diagnosed stages 2 - 4 diffuse anaplastic Wilms tumor must be enrolled on AREN1921 within 2 weeks of the first tumor-directed surgery or biopsy procedure (surgery/biopsy is day 0), except for patients who received prior therapy for presumed favorable histology Wilms tumor, later confirmed to have diffuse anaplastic Wilms tumor at subsequent review
• Patients with newly diagnosed DAWT who undergo upfront nephrectomy must have at least 1 lymph node sampled prior to study enrollment
• 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 must have a life expectancy of >= 8 weeks
• Diffuse Anaplastic Wilms Tumor: Patients with diffuse anaplastic histology must have had no prior systemic therapy, except in the following situations:
  • Patients with diffuse anaplastic Wilms tumor who received no more than 12 weeks of pre nephrectomy chemotherapy for what was originally presumed to be favorable histology Wilms tumor, subsequently confirmed to be diffuse anaplastic Wilms tumor at delayed nephrectomy.
  • Patients with diffuse anaplastic Wilms tumor who received no more than 6 weeks of chemotherapy following upfront nephrectomy or biopsy for presumed favorable histology Wilms tumor based on institutional review, but subsequently corrected to diffuse anaplastic Wilms tumor based on the AREN03B2 initial risk assignment results.
  • Treatment consisting of vincristine/doxorubicin/ cyclophosphamide initiated on an emergent basis and within allowed timing as described
  • Patients who received prior therapy for presumed favorable histology Wilms tumor, later identified to have diffuse anaplastic Wilms tumor as per above, must begin study treatment starting at cycle 3 (week 7) of regimen UH 3. For treatment details specific to this group of patients. Patients who received emergency radiation to preserve organ function are eligible as noted
• Relapsed Favorable Histology Wilms Tumor: Patients must not have received prior chemotherapy for their relapsed favorable histology Wilms tumor diagnosis. In addition, patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study
  • Myelosuppressive chemotherapy: Must not have received within 2 weeks of entry onto this study
  • Radiation therapy (RT): >= 2 weeks (wks) must have elapsed for local palliative RT (small port); >= 6 months must have elapsed if prior craniospinal RT or if >= 50% radiation of pelvis; >= 6 wks must have elapsed if other substantial BM radiation. Patients with relapsed favorable histology Wilms tumor who received emergency radiation to preserve organ function are eligible and do not need to washout with the above criteria
• Patients may not be receiving any other investigational agents (within 4 weeks prior to study enrollment)
• Peripheral absolute neutrophil count (ANC) >= 750/uL (performed within 7 days prior to enrollment)
• Platelet count >= 75,000/uL (transfusion independent) (performed within 7 days prior to enrollment)
• Hemoglobin >= 8.0 g/dL (may receive red blood cell [RBC] transfusions) (performed within 7 days prior to enrollment)
• Patients with high-risk or very high-risk relapsed FHWT who will be treated with Regimen ICE/Cyclo/Topo, must have renal function assessed by creatinine clearance or radioisotope glomerular filtration rate (GFR) and meet the following requirement:
  • Creatinine clearance or radioisotope GFR >= 60 mL/min/1.73 m^2 (performed within 7 days prior to enrollment)
• Patients diagnosed with stage 2-4 DAWT or standard risk relapsed FHWT, who will be treated with Regimen UH 3, may either obtain a creatinine clearance, radioisotope GFR (meeting the above criteria of GFR >= 60 mL/min/1.73 m^2), or an adequate serum creatinine as per the following table:
  • 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: 0.6 (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 =< 1.5 x upper limit of normal (ULN) for age or direct bilirubin =< ULN for patients whose total bilirubin > 1.5 x ULN (performed within 7 days prior to enrollment)
• Serum glutamic-oxaloacetic transaminase (SGOT) (aspartate aminotransferase [AST]) or serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) < 2.5 x upper limit of normal (ULN) for age or =< 5 x ULN for patients with liver metastases (performed within 7 days prior to enrollment)
• Shortening fraction of >= 27% by echocardiogram, or ejection fraction of >= 50% by radionuclide angiogram (performed within 7 days prior to enrollment)

Exclusion Criteria

• Patients with a history of bilateral Wilms tumor (synchronous or metachronous)
• Patients with any uncontrolled, intercurrent illness including, but not limited to, ongoing or active infection, or symptomatic congestive heart failure (defined as grade 2 or higher heart failure per Common Terminology Criteria for Adverse Events [CTCAE] version 5.0)
• Relapsed FHWT patients who did not receive frontline chemotherapy (e.g., very low risk FHWT initially observed without chemotherapy) or received only one chemotherapy agent for frontline therapy
• For patients with high-risk or very high-risk relapsed FHWT:
  • Patients with renal tubular acidosis (RTA) as evidenced by serum bicarbonate < 16 mmol/L and serum phosphate =< 2 mg/dL (or < 0.8 mmol/L) without supplementation
• For stages 2-4 DAWT and standard-risk relapsed FHWT patients:
  • Chronic inflammatory bowel disease and/or bowel obstruction
  • Concomitant use of St. John's wort, which cannot be stopped prior to the start of trial treatment
• 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

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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.