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Centres

Study Description

This is an open-label, randomized, multi-center, comparator Phase II trial looking at the addition of Bevacizumab to Vinblastine in chemotherapy naïve pediatric patients with progressive Low Grade Glioma aged 6 months to less than18 years of age at the time of initiation of therapy. Participants will be randomized to Arm A or Arm B. Arm A includes 68 weeks of single agent Vinblastine administered once weekly IV. Arm B includes 68 weeks of Vinblastine administered weekly IV with the addition of 12 doses of Bevacizumab administered every two weeks IV for the initial 24 weeks. Randomization will take place at the time of registration taking into account NF1 and BRAF-KIAA1549-fusion status.

Inclusion Criteria

1. Children and adolescents aged 6 months to < 18 years old with Low Grade Glioma 
2. All patients must submit tumour tissue (fresh tumour tissue is recommended) and have pathological confirmation of LGG and determination of BRAF characteristics from the Hospital for Sick Children. Exceptions will be made for patients with neurofibromatosis type 1 who have not previously had a biopsy. NF1 patients are eligible without tissue confirmation but must have definitive clinical or radiographic evidence of tumour progression or risk for significant neurologic deterioration requiring immediate therapy. If a tissue sample for NF1 patients is available from a previous biopsy, it is required to be submitted for Central Review at the Hospital for Sick Children. Please refer to the lab manual for further details.
3. Patients must have progressive disease following surgical excision based on clear radiological or clinical evidence of progression, or an incomplete excision (< 95% or > 1.0 cm2 residual tumour) with necessity to begin treatment because of a risk of neurological impairment with progression.
4. All patients on study must have measurable tumour (>1.0 cm2 of residual tissue if resection has been performed) within 28 days of enrollment.
5. Patients must have received no prior therapy including chemotherapy, biological modifiers and/or radiation treatment for the tumour with the exception of surgery.
6. Patient is able to start treatment within 14 working days after randomization.
7. Post pubertal teenagers who are sexually active agree to use two methods of contraception during the treatment period and for at least 6 months after the last dose of study drug. Please refer to Appendix V for a list of acceptable methods of contraception.
8. Lansky performance status > 50% for patients < 16 years of age. Karnofsky performance status > 50% for patients ≥ 16 years of age.
9. Patients with neurologic deficits must have deficits that are stable for a minimum of 1 week prior to enrollment.
10. Patients receiving corticosteroids must be on a stable or decreasing dose for at least 1 week prior to enrollment.
11. Life expectancy > 2 months at the time of enrollment.
12. Parents/guardians must provide written informed consent and to agree that they (and the patient) will comply with the study protocol.
13. Written assent by patient according to institutional guidelines.

14. Patients must have adequate bone marrow function within 2 weeks prior to enrollment:

    • Hemoglobin ≥ 10 g/dL (may be supported )
    • Neutrophil count ≥ 1.0 × 109/L
    • Platelet count ≥ 100 × 109/L (transfusion independent)
15. Patients not on a therapeutic dose of an anti-coagulant must have an INR ≤ 1.5 and an aPTT ≤ 1.5x institutional ULN for age within 2 weeks prior to enrollment. Anti-coagulation is permitted prior to enrollment on the condition that the patient is, according to the local clinical practice guidelines or approved product labeling, adequately anti-coagulated prior to enrollment.

16. Patients must have satisfactory liver function within 2 weeks prior to enrollment:

    • AST ≤ 3x institutional ULN for age
    • ALT ≤ 3x institutional ULN for age
    • Total Bilirubin ≤ 1.5x institutional ULN for age

17. Patients must have satisfactory renal parameters and meet the following criteria within 2 weeks prior to enrollment :

    • Serum creatinine must be ≤ 1.5x ULN for age. If the serum creatinine is > 1.5 × ULN, the glomerular filtration rate (either estimated or formal) must be >90 mL/min/1.73 m2, for patient to be enrolled.
    • Absence of clinically significant proteinuria, as defined by screening of the early morning urine (urine protein < 1g/L and/or albumin/creatinine ratio < 1.0 (mg/mmol)). If urine protein ≥ 1g/L, then Urine Protein Creatinine (UPC) ratio should be calculated. If UPC ratio > 0.5, 24-hour urine protein should be obtained and the level should be < 1000 mg/24 hours for patient enrollment. Note: UPC ratio of spot urine is an estimation of the 24 urine protein excretion - a UPC ratio of 1 is roughly equivalent to a 24-hour urine protein of 1 g. UPC ratio is calculated using one of the following formulas:

[urine protein]/[urine creatinine] - if both protein and creatinine are reported in mg/dL or [(urine protein) x0.088]/[urine creatinine] - if urine creatinine is reported in mmol/L

Quality of Life Correlative Study Inclusion Criteria (Optional):

1. Age ≥ 3 and < 18 years.
2. English- or Spanish-speaking.
3. No known history of a significant neurodevelopmental disorder prior to diagnosis of LGG (e.g., Down syndrome, Fragile X, William's Syndrome, mental retardation). Patients with NF1 are not excluded.
4. No significant motor or sensory impairment that would prevent computer use and perception of the visual and auditory test stimuli.

Exclusion Criteria

1. Children under 6 months of age.
2. Pregnant or lactating females.
3. Use of any investigational agent, systemic, targeted or immunotherapy prior to the first dose of study treatment.
4. Any bleeding diathesis or significant coagulopathy at risk of bleeding (i.e. in the absence of therapeutic anticoagulation).
5. Patients with evidence of new symptomatic CNS hemorrhage (> grade I) on baseline MRI.
6. Any significant cardiovascular disease, e.g. aortic aneurysm requiring surgical repair or recent arterial thrombosis, CVAs, transient ischemic attacks (TIAs), and systemic hypertension (i.e., a systolic and diastolic BP ≥ 95th percentile for age, sex), prior history of hypertensive crisis or hypertensive encephalopathy or stroke, uncontrolled cardiac arrhythmia within 6 months prior to enrollment .
7. Any previous venous thromboembolism Grade 3 or higher (NCI CTCAE v. 4.03).
8. History of abdominal fistula, GI perforation, intra-abdominal abscess or active GI bleeding within 6 months prior to the first study treatment.
9. Unresolved infection.
10. An active peptic or duodenal ulcer.
11. Major surgical procedure (see Table 3 section 6.1.7), brain surgery, open biopsy or significant traumatic injury within 28 days prior to enrollment or the anticipation of the need for major (elective) surgery during the course of the study treatment.
12. Intermediate surgical procedure (see Table 3 section 6.1.7) within 2 weeks of enrollment.
13. Minor surgical procedures (see Table 3 section 6.1.7) within 3 days prior to the start of treatment (including the placement of a central line, including PICC line). Insertion of a port-a-cath will require a 7-day interval prior to the start of treatment.
14. Non-healing surgical wound.
15. A bone fracture that has not satisfactorily healed.

16. Concomitant use of the following:

    • Aspirin (> 325mg/day) within 10 days of enrollment
    • Clopidogrel (> 75mg/day) within 10 days of enrollment
    • Use of therapeutic oral or parenteral anticoagulants or thrombolytic agents for therapeutic purposes with INR and aPTT outside therapeutic standards according to institutional guidelines within 10 days of first dose of Bevacizumab. Note: The use of full-dose oral or parenteral anticoagulants is permitted as long as the INR or aPTT is within therapeutic limits (according to the medical standard of the institution) and the patient has been on a stable dose of anticoagulants for at least two weeks at the time of the Baseline Visit. Prophylactic use of anticoagulants is allowed.
17. Hypersensitivity to Chinese hamster ovary (CHO) cell products or other recombinant human or humanized antibodies.

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Centres

Study Description

Brief Summary:

The study is being done to test the safety of a cancer drug called larotrectinib in children. The cancer must have a change in a particular gene (NTRK1, NTRK2 or NTRK3). NTRK gene changes lead to abnormal proteins called TRK fusion proteins, which may cause cancer cells to grow. Larotrectinib blocks the actions of these NTRK genes in cancer cells and can therefore be used to treat cancer.

The first study part (Phase 1) is done to determine what dose level of larotrectinib is safe for children, how the drug is absorbed and changed by their bodies and how well the cancer responds to the drug. The main purpose of the second study part (Phase 2) is to investigate how well and how long different cancer types respond to the treatment with larotrectininb.

Detailed Description:

The primary objectives are to determine the safety and efficacy of oral larotrectinib in pediatric patients with advanced solid or primary central nervous system (CNS) tumors.

The secondary objectives comprise e.g. the determination of the pharmacokinetic properties, the maximum tolerated dose/ recommended dose and the tumor-type specific efficacy of larotrectinib. In addition, pain status and health-related quality of life of the pediatric patients will be assessed.

Inclusion Criteria

• Phase 1:

  • Dose escalation: Birth through 21 years of age at C1D1 with a locally advanced or metastatic solid tumor or primary CNS tumor that has relapsed, progressed or was nonresponsive to available therapies and for which no standard or available systemic curative therapy exists; OR Infants from birth and older with a diagnosis of malignancy and with a documented NTRK fusion that has progressed or was nonresponsive to available therapies, and for which no standard or available curative therapy exists; OR Patients with locally advanced infantile fibrosarcoma who would require, in the opinion of the investigator, disfiguring surgery or limb amputation to achieve a complete surgical resection. Phase I dose escalation cohorts are closed to enrollment.
  • Dose expansion: In addition to the above stated inclusion criteria, patients must have a malignancy with a documented NTRK gene fusion with the exception of patients with infantile fibrosarcoma, congenital mesoblastic nephroma or secretory breast cancer. Patients with infantile fibrosarcoma, congenital mesoblastic nephroma or secretory breast cancer may enroll into this cohort with documentation of an ETV6 rearrangement by FISH or RT-PCR or a documented NTRK fusion by next generation sequencing.

• Phase 2:

  • Infants from birth and older at C1D1 with a locally advanced or metastatic infantile fibrosarcoma, patients with locally advanced infantile fibrosarcoma who would require, in the opinion of the investigator, disfiguring surgery or limb amputation to achieve a complete surgical resection; OR Birth through 21 years of age at C1D1 with a locally advanced or metastatic solid tumor or primary CNS tumor that has relapsed, progressed or was nonresponsive to available therapies and for which no standard or available systemic curative therapy exists with a documented NTRK gene fusion (or in the case of infantile fibrosarcoma, congenital mesoblastic nephroma or secretory breast cancer with documented ETV6 rearrangement by FISH or RT-PCR or a documented NTRK fusion by next generation sequencing) (identified through molecular assays as routinely performed at CLIA or other similarly certified laboratories). Patients with NTRK-fusion positive benign tumors are also eligible; OR Potential patients older than 21 years of age with a tumor diagnosis with histology typical of a pediatric patient and an NTRK fusion may be considered for enrollment following discussion between the local site Investigator and the Sponsor's Medical Monitor.
• Patients with primary CNS tumors or cerebral metastasis
• Karnofsky (those 16 years and older) or Lansky (those younger than 16 years) performance score of at least 50.
• Adequate hematologic function
• Adequate hepatic and renal function

Exclusion Criteria

• Major surgery within 14 days (2 weeks) prior to C1D1
• Clinically significant active cardiovascular disease or history of myocardial infarction within 6 months prior to C1D1, ongoing cardiomyopathy; current prolonged QTc interval > 480 milliseconds
• Active uncontrolled systemic bacterial, viral, or fungal infection
• Current treatment with a strong CYP3A4 inhibitor or inducer. Enzyme-inducing anti-epileptic drugs (EIAEDs) and dexamethasone for CNS tumors or metastases, on a stable dose, are allowed.

• Phase 2 only:

  • Prior progression while receiving approved or investigational tyrosine kinase inhibitors targeting TRK, including entrectinib, crizotinib and lestaurtanib. Patients who received a TRK inhibitor for less than 28 days of treatment and discontinued because of intolerance remain eligible.

Publications

Bielack SS, Cox MC, Nathrath M, Apel K, Blattmann C, Holl T, Jenewein R, Klenk U, Klothaki P, Müller-Abt P, Ortega-Lawerenz S, Reynolds M, Scheer M, Simon-Klingenstein K, Stegmaier S, Tupper R, Vokuhl C, von Kalle T. Rapid, complete and sustained tumour response to the TRK inhibitor larotrectinib in an infant with recurrent, chemotherapy-refractory infantile fibrosarcoma carrying the characteristic ETV6-NTRK3 gene fusion. Ann Oncol. 2019 Nov;30 Suppl 8:viii31-viii35. doi: 10.1093/annonc/mdz382. Epub 2019 Dec 24.

Hong DS, DuBois SG, Kummar S, Farago AF, Albert CM, Rohrberg KS, van Tilburg CM, Nagasubramanian R, Berlin JD, Federman N, Mascarenhas L, Geoerger B, Dowlati A, Pappo AS, Bielack S, Doz F, McDermott R, Patel JD, Schilder RJ, Tahara M, Pfister SM, Witt O, Ladanyi M, Rudzinski ER, Nanda S, Childs BH, Laetsch TW, Hyman DM, Drilon A. Larotrectinib in patients with TRK fusion-positive solid tumours: a pooled analysis of three phase 1/2 clinical trials. Lancet Oncol. 2020 Apr;21(4):531-540. doi: 10.1016/S1470-2045(19)30856-3. Epub 2020 Feb 24.

Bielack SS, Cox MC, Nathrath M, Apel K, Blattmann C, Holl T, Jenewein R, Klenk U, Klothaki P, Müller-Abt P, Ortega-Lawerenz S, Reynolds M, Scheer M, Simon-Klingenstein K, Stegmaier S, Tupper R, Vokuhl C, von Kalle T. Rapid, complete and sustained tumour response to the TRK inhibitor larotrectinib in an infant with recurrent, chemotherapy-refractory infantile fibrosarcoma carrying the characteristic ETV6-NTRK3 gene fusion. Ann Oncol. 2019 Nov 1;30(Suppl_8):viii31-viii35. doi: 10.1093/annonc/mdz382.

DuBois SG, Laetsch TW, Federman N, Turpin BK, Albert CM, Nagasubramanian R, Anderson ME, Davis JL, Qamoos HE, Reynolds ME, Cruickshank S, Cox MC, Hawkins DS, Mascarenhas L, Pappo AS. The use of neoadjuvant larotrectinib in the management of children with locally advanced TRK fusion sarcomas. Cancer. 2018 Nov 1;124(21):4241-4247. doi: 10.1002/cncr.31701. Epub 2018 Sep 11.

Laetsch TW, DuBois SG, Mascarenhas L, Turpin B, Federman N, Albert CM, Nagasubramanian R, Davis JL, Rudzinski E, Feraco AM, Tuch BB, Ebata KT, Reynolds M, Smith S, Cruickshank S, Cox MC, Pappo AS, Hawkins DS. Larotrectinib for paediatric solid tumours harbouring NTRK gene fusions: phase 1 results from a multicentre, open-label, phase 1/2 study. Lancet Oncol. 2018 May;19(5):705-714. doi: 10.1016/S1470-2045(18)30119-0. Epub 2018 Mar 29. Erratum in: Lancet Oncol. 2018 May;19(5):e229.

Drilon A, Laetsch TW, Kummar S, DuBois SG, Lassen UN, Demetri GD, Nathenson M, Doebele RC, Farago AF, Pappo AS, Turpin B, Dowlati A, Brose MS, Mascarenhas L, Federman N, Berlin J, El-Deiry WS, Baik C, Deeken J, Boni V, Nagasubramanian R, Taylor M, Rudzinski ER, Meric-Bernstam F, Sohal DPS, Ma PC, Raez LE, Hechtman JF, Benayed R, Ladanyi M, Tuch BB, Ebata K, Cruickshank S, Ku NC, Cox MC, Hawkins DS, Hong DS, Hyman DM. Efficacy of Larotrectinib in TRK Fusion-Positive Cancers in Adults and Children. N Engl J Med. 2018 Feb 22;378(8):731-739. doi: 10.1056/NEJMoa1714448.

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Centres

Study Description

Brief Summary:

This is a nonrandomized study of ruxolitinib in combination with a standard multi-agent chemotherapy regimen for the treatment of B-cell acute lymphoblastic leukemia. Part 1 of the study will optimize the dose of study drug (ruxolitinib) in combination with the chemotherapy regimen. Part 2 will evaluate the efficacy of combination chemotherapy and ruxolitinib at the recommended dose determined in Part 1.

Inclusion Criteria

• Eligible for study when participant is 1 year to 21 years at the time of diagnosis
• Eligible Ages in Australia and Canada; 2 years to 21 years

• De novo high-risk (HR) Ph-like B-ALL for which any of following criteria are present at diagnosis:

  • Age ≥ 10 years
  • White blood cell (WBC) ≥ 50 × 10^3/μL
  • CNS3 leukemia at diagnosis
  • Systemic steroid pretreatment without presteroid WBC documentation

• Diagnostic bone marrow or peripheral blood sample must have gene expression profiling and downstream genetic testing performed by submitting diagnostic specimens under the COG AALL08B1 or APEC14B1 biology studies, or AALL1131 or its successor study. Specimens must demonstrate a Ph-like expression profile (ie, LDA-positive) as tested by low density microarray testing at the COG ALL reference laboratory or TriCore laboratory at the University of New Mexico AND must contain 1 of the following genetic lesions: (determined at COG ALL reference laboratories, or equivalent CAP/CLIA-certified laboratories approved by the medical monitor:

  1. CRLF2 rearrangement* with confirmed JAK1 or JAK2 mutation (JAK+)
  2. CRLF2 rearrangement* without JAK mutation
  3. Other JAK pathway alterations (eg, JAK2 fusions, EPOR fusions, SH2B3 deletions, IL7RA mutations) with or without CRLF2-R, or CRLF2-R with unknown JAK status*† as determined by a COG ALL Reference Laboratory
• Completed a 4-drug Induction therapy regimen (modified aBFM regimen or equivalent) in Study AALL1131 or its successor study, or as per the institutional standard of care for HR B-ALL and have had end-Induction minimal residual disease (MRD) assessed
• Male and female subjects of reproductive non childbearing potential or willing to take appropriate precautions to avoid pregnancy or fathering a child for the duration of study participation

Exclusion Criteria

• Receipt of any other cytotoxic chemotherapy before Induction therapy, with exception of hydroxyurea or steroid pretreatment
• Trisomy 21 (Down syndrome)
• BCR-ABL1-rearranged (Ph+) ALL
• Calculated creatinine clearance or radioisotope glomerular filtration rate < 70 mL/min/1.73 m^2
• Alanine aminotransferase ≥ 5 × upper limit of normal (ULN) for age
• Direct bilirubin ≥ 1.5 × ULN (may be assumed if total bilirubin is below ULN)
• History or evidence of cirrhosis
• Platelet count < 75 × 10^3/μL
• Absolute neutrophil count (ANC) < 750/μL
• Positive screen for hepatitis B or C
• Known human immunodeficiency virus infection

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Centres

Study Description

This phase III trial compares the effect of vinorelbine with vincristine, dactinomycin, and cyclophosphamide (VAC) followed by vinorelbine and cyclophosphamide versus VAC followed by vinorelbine and cyclophosphamide for the treatment of high risk rhabdomyosarcoma. Chemotherapy drugs, such as vinorelbine, vincristine, dactinomycin, and cyclophosphamide, 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 vinorelbine and VAC may kill more tumor cells. Adding maintenance therapy (vinorelbine and cyclophosphamide) after VAC therapy, with or without vinorelbine, may help get rid of the cancer and/or lower the chance that the cancer comes back.

PRIMARY OBJECTIVE:

I. To compare event-free survival (EFS) of patients with high-risk rhabdomyosarcoma (HR-RMS) treated with vinorelbine, dactinomycin and cyclophosphamide (VINO AC) followed by 24 weeks of vinorelbine and oral cyclophosphamide (VINO-CPO) maintenance therapy to that of patients treated with vincristine, dactinomycin and cyclophosphamide (VAC) followed by 24 weeks of VINO-CPO maintenance therapy.

SECONDARY OBJECTIVES:

I. To assess the safety and feasibility of administering VINO-AC in newly diagnosed patients with HR-RMS.

II. To describe the toxicity experience of patients with HR-RMS treated with VINO-AC compared to VAC.

III. To compare overall survival (OS) of patients with HR-RMS treated with VINO AC followed by 24 weeks of VINO-CPO maintenance therapy to that of patients treated with VAC followed by 24 weeks of VINO-CPO maintenance therapy.

IV. To compare objective radiologic response rates at week 12 between patients with HR-RMS treated with VINO-AC to those treated with VAC.

V. To determine whether the addition of 24 weeks of VINO-CPO maintenance therapy improves EFS in patients with HR-RMS when compared to historical controls.

EXPLORATORY OBJECTIVE:

I. To collect serial blood samples and tumor tissue for banking at baseline, during treatment, at the end of therapy, and at the time of progression for future tumor and liquid biopsy studies.

OUTLINE: Patients are randomized to 1 of 2 arms.

• ARM A: Patients receive vincristine sulfate intravenously (IV) on days 1, 8 and 15 of cycles 1-4, 7, 8, 11, and 12, and day 1 of cycles 6, 9, 10, 13, and 14. Patients also receive dactinomycin IV over 1-15 minutes on day 1 of cycles 1-5 and 8-14, and cyclophosphamide IV over 60 minutes on day 1 of each cycle. Treatment repeats every 21 days for up to 14 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo radiation therapy on weeks 13 and 40.
• ARM B: Patients receive vinorelbine tartrate IV over 6-10 minutes on days 1 and 8, vincristine sulfate IV on day 15, dactinomycin IV over 1-15 minutes on day 1 of cycles 1-5 and 8-14, and cyclophosphamide IV over 60 minutes on day 1. Treatment repeats every 21 days for up to 14 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo radiation therapy on weeks 13 and 40.

MAINTENANCE: All patients receive vinorelbine tartrate IV over 6-10 minutes on days 1, 8, and 15, and cyclophosphamide orally (PO) on days 1-28. Treatment repeats every 28 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 3 months for year 1, every 4 months for years 2-3, and every 6 months for year 4.

Inclusion Criteria

• Patients must be =< 50 years of age at the time of enrollment
• Patients with newly diagnosed RMS of any subtype, except adult-type pleomorphic, based upon institutional histopathologic classification are eligible to enroll on the study based upon Stage, Group, and age, as below. FOXO1 fusion status must be determined by week 4 (day 28) of therapy. RMS types included under embryonal RMS (ERMS) include those classified in the 1995 International Classification of Rhabdomyosarcoma (ICR) as ERMS (classic, spindle cell, and botryoid variants), which are reclassified in the 2020 World Health Organization (WHO) Classification as ERMS (classic, dense and botryoid variants) and spindle cell/sclerosing RMS (encompassing the historical spindle cell ERMS variant and the newly recognized sclerosing RMS variant). Classification of alveolar RMS (ARMS) in the 2020 WHO Classification is the same as in the ICR and includes classic and solid variants
  • ERMS
    • Stage 4, group IV, >= 10 years of age
  • ARMS
    • Stage 4, group IV Patients will be eligible to remain on protocol therapy based upon stage, group, and age
• Bone marrow metastatic disease is based on morphologic evidence of RMS based on hematoxylin and eosin (H&E) stains. In the absence of morphologic evidence of marrow involvement on H&E, patients with bone marrow involvement detected ONLY by flow cytometry, reverse transcriptase (RT)-polymerase chain reaction (PCR), fluorescence in situ hybridization (FISH), or immunohistochemistry will NOT be considered to have clinical bone marrow involvement for the purposes of this study
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 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 mg/dL (male); 0.4 mg/dL (female)
  • 6 months to < 1 year; 0.5 mg/dL (male); 0.5 mg/dL (female)
  • 1 to < 2 years; 0.6 mg/dL (male); 0.6 mg/dL (female)
  • 2 to < 6 years; 0.8 mg/dL (male); 0.8 mg/dL (female)
  • 6 to < 10 years; 1 mg/dL (male); 1 mg/dL (female)
  • 10 to < 13 years; 1.2 mg/dL (male); 1.2 mg/dL (female)
  • 13 to < 16 years; 1.5 mg/dL (male); 1.4 mg/dL (female)
  • >= 16 years; 1.7 mg/dL (male); 1.4 mg/dL (female)
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age
  • If there is evidence of biliary obstruction by tumor, then total bilirubin must be < 3 x ULN for age
• 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

Additional inclusion and exclusion criteria may apply 

Exclusion Criteria

• Patients with evidence of uncontrolled infection are not eligible
• RMS that is considered a second malignancy and previous cancer(s) that were treated with chemotherapy and/or radiation. Surgical resection alone of previous cancer(s) is allowed
• Patients with central nervous system involvement of RMS as defined below:
  • Malignant cells detected in cerebrospinal fluid
  • Intra-parenchymal brain metastasis separate and distinct from primary tumor (i.e., direct extension from parameningeal primary tumors is allowed).
  • Diffuse leptomeningeal disease
• Patients who have received any chemotherapy (excluding steroids) and/or radiation therapy for RMS prior to enrollment.
  • Note: the following exception:
    • Patients requiring emergency radiation therapy for RMS. These patients are eligible, provided they are consented to ARST2031 prior to administration of radiation
  • Note: Patients who have received or are receiving chemotherapy or radiation for non-malignant conditions (e.g. autoimmune diseases) are eligible. Patients must discontinue chemotherapy for non-malignant conditions prior to starting protocol therapy
• Vincristine and vinorelbine are sensitive substrates of CYP450 3A4 isozyme. Patients must not have received drugs that are moderate to strong CYP3A4 inhibitors and inducers within 7 days prior to study enrollment
• 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

Additional inclusion and exclusion criteria may apply 

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Centres

Study Description

This is a prospective, single arm, non-randomized feasibility study to evaluate the safety, feasibility and preliminary efficacy of Blood Brain Barrier Disruption (BBBD) using the Exablate Type 2 system in pediatric patients with Diffuse Intrinsic Pontine Gliomas (DIPG) undergoing Doxorubicin chemotherapy. The study will be conducted at a single center in Canada. Patients will undergo 3 treatment cycles, approximately 4 -6 weeks apart. The study aims to establish feasibility and safety of Exablate BBBD in conjunction with Doxorubicin in the treatment of pediatric DIPG and assess preliminary efficacy in this patient population.

Inclusion Criteria

• Age between 5 and 18 years, inclusive
• Patient diagnosed with DIPG
• At least 4-week and not greater than 12 weeks from completion of radiation therapy
• Post-radiation imaging does not show evidence of necrosis/ hemorrhage or other features that contraindicate MRgFUS
• Able to attend all study visits and with life expectancy of at least 6 months
• Able and willing to give consent and/or assent or have a legal guardian who is able and willing to do so
• If on steroids, stable or decreasing dose for at least 7 days prior to study entry
• If brain surgery occurred, at least 14 days passed since last brain surgery and the patient is fully recovered and neurologically stable

Exclusion Criteria

• Evidence of cranial or systemic infection
• Known life-threatening systemic disease
• Previous treatment with complete cumulative doses of Doxorubicin, daunorubicin, idarubicin, and/or other anthracyclines and anthracenediones
• Contraindication to Doxorubicin. - Known sensitivity to DEFINITY® ultrasound contrast agent or known hypersensitivity to perflutren microsphere or its components, e.g., polyethylene glycol. - Known sensitivity to gadolinium-based contrast agents
• Active seizure disorder or epilepsy (seizures despite medical treatment) for a minimum of 4 weeks prior to first cycle/Exablate BBBD procedure captured by history
• Patients with positive HIV status. - Immunosuppression (corticosteroids to prevent/treat brain edema are permitted)
• Cerebral or systemic vasculopathy, including intracranial thrombosis, vascular malformation, cerebral aneurysm, or vasculitis
• Hypertension per age
• History of a bleeding disorder, coagulopathy or with a history of spontaneous tumour hemorrhage
• Anti-coagulant therapy, or medications known to increase risk of hemorrhage, (e.g., ASA, non-steroidal anti-inflammatory drugs [NSAIDs], statins) within washout period prior to treatment
• Patient receiving bevacizumab (Avastin) therapy or increasing doses of steroids
• Symptoms and signs of increased intracranial pressure
• Previous participation in other chemotherapy, molecularly targeted therapy or immunotherapy treatment-related phase 1 or 2 trials
• Tumor not visible on any pre-therapy or post-radiation imaging

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Centres

Study Description

Brief Summary:

Lorlatinib is a novel inhibitor across ALK variants, including those resistant to crizotinib. In this first pediatric phase 1 trial of lorlatinib, the drug will be utilized as a single agent and in combination with chemotherapy in patients with relapsed/refractory neuroblastoma. The dose escalation phase of this study (Cohort A1) uses a traditional Phase I 3+3 design. Once a recommended phase 2 pediatric dose is identified, an expansion cohort of 6 patients (Cohort B1), within which ALKi naïve patients will be prioritized, will be initiated. Parallel cohorts will be initiated in adults or patients with large BSA (Cohort A2) and in combination with chemotherapy upon establishing RP2D (Cohort B2).

Detailed Description:

Lorlatinib is a novel inhibitor across ALK variants, including those resistant to crizotinib. An adult phase 1 study established an RP2D of 100mg QD for lorlatinib. In this first pediatric phase 1 trial of lorlatinib, the drug will be utilized as a single agent and in combination with chemotherapy in patients with relapsed/refractory neuroblastoma. The dose escalation phase of this study (Cohort A1) uses a traditional Phase I 3+3 design. Once a recommended phase 2 pediatric dose is identified, an expansion cohort of 6 patients (Cohort B1), within which ALKi naïve patients will be prioritized, will be initiated. Parallel cohorts will be initiated in adults or patients with large BSA (Cohort A2) and in combination with chemotherapy upon establishing RP2D (Cohort B2).

Lorlatinib will be administered orally via tablets or via oral dispersion if patient is unable to swallow tablets whole

All patients will participate in mandatory pharmacokinetic testing.

Inclusion Criteria

• Patients must have a diagnosis of neuroblastoma either by histologic verification of neuroblastoma and/or demonstration of tumor cells in the bone marrow with increased urinary catecholamines

• Patients are required to have an activating ALK aberration in their tumor detected by certified assay (i.e. CLIA in the US.) prior to registration. The report from this test is required to be submitted for eligibility. Patients with at least one of the following genetic features in their tumor will be considered to have an activating ALK aberration:

  1. An ALK activating mutation;
  2. ALK amplification (> 10 signals of the ALK gene);
  3. Presence of any ALK fusion protein that arises from a chromosomal translocation.
• Patients must have high risk neuroblastoma according to COG risk classification at the time of study registration. Patients who were initially considered low or intermediate risk, but then reclassified as high risk are also eligible.
• Patients must have at least ONE of the following: 1) Recurrent/progressive disease at any time prior to study enrollment, 2) Refractory disease, 3) Persistent disease
• Patients must have at least ONE of the following: 1) Bone disease, 2) Any amount of neuroblastoma tumor cells in the bone marrow, 3) At least one soft tissue lesion that meets criteria for a TARGET lesion, 4) At least one non-target soft tissue lesion that is not measurable, but had a biopsy positive for neuroblastoma and/or ganglioneuroblastoma at any time prior to enrollment or is MIBG avid
• Patients must have a Lansky (≤16 years) or Karnofsky (> 16 years) score of at least 50
• Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study.
• Patients must not have been previously treated with lorlatinib.
• Patients must not have received any of the specified therapies as stated in the protocol in the time period prior to registration
• Patients must not be receiving any other anti-cancer agents or radiotherapy at the time of study entry or while on study.
• Patients must not be receiving other investigational medications (covered under another IND) within 30 days of study entry or while on study.
• Patients must not be receiving chronic systemic corticosteroids at doses greater than physiologic dosing (inhaled corticosteroids acceptable).
• Patient must meet the organ function and system function requirements as stated in the protocol

Exclusion Criteria

• Pregnancy, breast feeding, or unwillingness to use effective contraception during the study.
• Patients who, in the opinion of the investigator, may not be able to comply with the safety monitoring requirements of the study.
• Patients with disease of any major organ system that would compromise their ability to withstand therapy.
• Patients who have received prior allogeneic stem cell transplant
• Patients who are on hemodialysis.
• Patients with an active or uncontrolled infection.
• Known history of human immunodeficiency virus (HIV) infection, hepatitis B, or hepatitis C.
• Patient declines participation in NANT 2004-05, the NANT Biology Study

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Study Description

This phase I/II trial tests the safety, best dose, and whether elimusertib works in treating patients with solid tumors that have come back (relapsed) or does not respond to treatment (refractory). Elimusertib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

PRIMARY OBJECTIVES:

I. To estimate the maximum tolerated dose (MTD) and/or recommended phase 2 dose (RP2D) of BAY 1895344 (elimusertib) administered as an oral tablet, twice per day for 3 days on and 4 days off to patients < 18 years of age with recurrent or refractory Ewing sarcoma (and EWS fusions), PAX3-FOXO1 alveolar rhabdomyosarcoma, and non-central nervous system (CNS) solid tumors or lymphoma with specific deleterious deoxyribonucleic acid (DNA) damage response (DDR) pathway alterations. (Phase 1/Part A) II. To define the antitumor activity of BAY 1895344 (elimusertib) in pediatric patients and young adults with recurrent or refractory Ewing sarcoma (and EWS fusions). (Phase 2/Part B) III. To define the antitumor activity of BAY 1895344 (elimusertib) in pediatric patients and young adults with recurrent or refractory PAX3-FOXO1 fusion positive alveolar rhabdomyosarcoma. (Phase 2/Part B) IV. To define and describe the toxicities of BAY 1895344 (elimusertib) administered on this schedule. (Phase 1/Part A)

SECONDARY OBJECTIVES:

I. To characterize the pharmacokinetics of BAY 1895344 (elimusertib) in children and adolescents with recurrent or refractory cancer.

II. To assess the biologic activity of BAY 1895344 (elimusertib) by immunohistochemical assessments of phosphorylated (p)ATR, pH2AX, and pKAP1 in paired tissue samples before and after treatment with BAY 1895344 (elimusertib).

III. To assess whether the activity of BAY 1895344 (elimusertib) is influenced by alternative lengthening of telomeres (ALT), as well as tumor tissue expression of ATM, PGBD5, and/or R-loops.

IV. To assess whether the activity of BAY 1895344 (elimusertib) is associated with tumor mutational processes, as measured by whole genome tumor tissue sequencing.

V. To preliminary determine the anti-tumor activity of BAY 1895344 (elimusertib) in children < 18 years of age within the confines of a phase 1 study (Phase 1 and 2/Part A and B).

VI. To assess the antitumor activity of BAY 1895344 (elimusertib) in pediatric patients with non-CNS solid tumors or lymphomas with specific deleterious alterations in DDR pathway genes. (Phase 2/Part B)

OUTLINE:

This is pediatric a phase I, dose-escalation study as well as a phase II dose expansion study in pediatric patients and young adults. Patients receive elimusertib orally (PO) twice daily (BID) on days 1-3, 8-10, 15-17, and 22-24 of each cycle. Treatment repeats every 28 days for 26 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 3 months for 12 months, every 6 months for 24 months, and then annually for up to 60 months.

Inclusion Criteria

• Age Requirements:
  • PART A: Patients between >= 12 months and < 18 years of age
  • PART B: 
    • Patients between >= 12 months and =< 30 years of age for the phase 2 expansion cohorts for both EWS and PAX3-FOXO1 ARMS.
    • Patients between >= 12 months and =< 21 years of age for the phase 2 DDR expansion cohort
      • The Phase 2 cohorts will initially open concurrently with the Phase 1 portion but will only enroll patients at least 18 years of age. Patients < 18 years of age will be included in the Phase 2 cohorts only after the RP2D/MTD has been estimated in the Phase 1 portion
• All patients for both Parts A and B must have a minimum body surface area (BSA) >= 0.74 m^2
• All patients for both Parts A and B must have the ability to swallow BAY 1895344 (elimusertib) tablets intact
• Patients with recurrent or refractory solid tumors. Patients must have had histologic verification of malignancy at original diagnosis or relapse
• PART A: Any (non-CNS primary) solid tumor diagnosis including lymphoma which meets one of the following criteria:
  • Any Ewing Sarcoma (histological confirmation alone is adequate) or any EWS-fusion positive solid tumor (i.e. including related Ewing's family of tumors with EWS fusions such as EWS-WT1, EWS-ATF1, etc.)
  • Alveolar rhabdomyosarcoma (ARMS) with the PAX3-FOXO1 fusion. This does not include PAX7-FOXO1 or other variant fusion ARMS. Please note that a FISH showing FOXO1 breakapart is NOT sufficient for eligibility onto this cohort since it cannot distinguish between FOXO1 partners
  • Any (non-CNS primary) solid tumor including lymphoma with inactivating alterations of any of the DNA Damage Repair (DDR) genes: ATM, ATRX, BRCA1, BRCA2, CDK12, CHEK1, CHEK2, FANCA, MSH2, MRE11, PALB2, PARP1, POLD1, RAD51, or XRCC2
• PART B: Any (non-CNS primary) solid tumor diagnosis including lymphoma which meets one of the following criteria:
  • B1, EWS Cohort:
    • Any Ewing Sarcoma (histological confirmation alone is adequate) or any EWS-fusion positive solid tumor (i.e. including related Ewing's family of tumors with EWS fusions such as EWS-WT1, EWS-ATF1, etc.)
  • B2, PAX3-FOXO1 ARMS Cohort:
    • Alveolar rhabdomyosarcoma (ARMS) with the PAX3-FOXO1 fusion. This does not include PAX7-FOXO1 or other variant fusion ARMS. Please note that a FISH showing FOXO1 breakapart is NOT sufficient for eligibility onto this cohort since it cannot distinguish between FOXO1 partners
  • B3, DDR Non-statistical Cohort:
    • Any (non-CNS primary) solid tumor including lymphoma with inactivating alterations of any of the DNA Damage Repair (DDR) genes: ATM, ATRX, BRCA1, BRCA2, CDK12, CHEK1, CHEK2, FANCA, MSH2, MRE11, PALB2, PARP1, POLD1, RAD51, or XRCC2
• All the genes on the DDR panel are annotated with OncoKB, a precision oncology knowledge base which is publicly available here: https://www.oncokb.org/. Alterations which are categorized either 'Oncogenic' or 'Likely Oncogenic' would be considered sufficient for eligibility on either the phase 1 or phase 2 portions of this study. Alterations which are not annotated in OncoKB will need to be reviewed with locally qualified experts in molecular pathology, such as via an established molecular tumor board, in order to determine the likely oncogenicity AND will require approval by the study chair, Dr. Michael Ortiz. If such experts are not available at any institution, the study chair will review
• In cases where multiple mutations are present or multiple samples are available, either at different locations or different points in time, the presence of a single qualifying genomic alteration in any of those samples will is considered sufficient for eligibility on the phase 2 portions of this study
• Qualifying aberrations must be detected in either DNA or ribonucleic acid (RNA) in any tumor tissue sample (i.e. detection of a variant on circulating tumor DNA/RNA is not sufficient to qualify) using a somatic (and/or germline) mutational testing approach with either a targeted panel or whole exome/genome sequencing in the context of a Clinical Laboratory Improvement Amendments (CLIA)-certified laboratory setting. Any CLIA certified laboratory is acceptable to use
• Part A: Patients must have either measurable or evaluable disease
• Part B (1, 2, 3): Patients must have measurable disease
• Patients with a prior history of CNS metastases may enroll on study provided there is no current evidence of active disease at the time of enrollment
• Patient's current disease state must be one for which there is no known curative therapy or therapy proven to prolong survival with an acceptable quality of life
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1 or 2. Use Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50% for patients =< 16 years of age. Note that neurologic deficits in patients with tumors previously metastatic to the CNS (or other non-oncologic reasons) must have been stable for at least 7 days prior to study enrollment. 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 have fully recovered from the acute toxic effects of all prior anti-cancer therapy and must meet the following minimum duration from prior anti-cancer directed therapy prior to enrollment. If after the required timeframe, the numerical eligibility criteria are met, e.g., blood count criteria, the patient is considered to have recovered adequately
  • Cytotoxic chemotherapy or other anti-cancer agents known to be myelosuppressive: >= 21 days after the last dose of myelosuppressive chemotherapy (42 days if prior nitrosourea)
  • Anti-cancer agents not known to be myelosuppressive (e.g., not associated with reduced platelet or absolute neutrophil count [ANC] counts): >= 7 days after the last dose of agent
  • Antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =< 1
  • Corticosteroids: If used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
  • Hematopoietic growth factors: >= 14 days after the last dose of a long-acting growth factor (e.g., pegfilgrastim) or 7 days for short acting growth factor. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur
  • Interleukins, interferons and cytokines (other than hematopoietic growth factors): >= 21 days after the completion of interleukins, interferon or cytokines (other than hematopoietic growth factors)
  • Stem cell Infusions (with or without total-body irradiation [TBI]):
    • Allogeneic (non-autologous) bone marrow or stem cell transplant, or any stem cell infusion including donor lymphocyte infusions (DLI) or boost infusion: >= 84 days after infusion and no evidence of graft versus host disease (GVHD)
    • Autologous stem cell infusion including boost infusion: >= 30 day
  • Cellular therapy: >= 42 days after the completion of any type of cellular therapy (e.g., modified T cells, natural killer [NK] cells, dendritic cells, etc.)
  • Radiation therapy (XRT)/external beam irradiation including protons: >= 14 days after local XRT; >= 150 days after TBI, craniospinal XRT or if radiation to >= 50% of the pelvis; >= 42 days if other substantial bone marrow (BM) radiation
  • Radiopharmaceutical therapy (e.g., radiolabeled antibody, 131I MIBG): >= 42 days after systemically administered radiopharmaceutical therapy
  • Study specific prior therapy: Patients must not have received prior exposure to BAY 1895344 (elimusertib) or any other specific ATR inhibitors including berzosertib (M6620, VX-970), ceralasertib (AZD6738), M4344 (VX-803), M1774, and RP-3500. Treatment with other DNA damage repair inhibitors which do not specifically inhibit ATR (e.g. PARP inhibitors, WEE1 inhibitors, CHEK1 inhibitors, etc.) does not exclude them from eligibility on this study
• For patients with solid tumors without known bone marrow involvement
  • Peripheral absolute neutrophil count (ANC) >= 1000/uL
  • Platelet count >= 100,000/uL (transfusion independent, defined as not receiving platelet transfusions for at least 7 days prior to enrollment)
  • Hemoglobin >= 8.0 g/dL at baseline (may receive red blood cell [RBC] transfusions)
• Patients with known or possible bone marrow metastatic disease will be eligible for study provided they meet the blood counts in above inclusion criteria (may receive transfusions provided they are not known to be refractory to red cell or platelet transfusions). These patients will not be evaluable for hematologic toxicity. At least 5 of every cohort of 6 patients must be evaluable for hematologic toxicity for the dose-escalation part of the study. If dose-limiting hematologic toxicity is observed, all subsequent patients enrolled must be evaluable for hematologic toxicity
• Serum creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 or a creatinine based on age/gender as follows:
  • Age: 1 to < 2 years; Maximum serum creatinine (mg/dL): 0.6 (male); 0.6 (female)
  • Age: 2 to < 6 years; Maximum serum creatinine (mg/dL): 0.8 (male); 0.8 (female)
  • Age: 6 to < 10 years; Maximum serum creatinine (mg/dL): 1 (male); 1 (female)
  • Age: 10 to < 13 years; Maximum serum creatinine (mg/dL): 1.2 (male); 1.2 (female)
  • Age: 13 to < 16 years; Maximum serum creatinine (mg/dL): 1.5 (male); 1.4 (female)
  • Age: >= 16 years; Maximum serum creatinine (mg/dL): 1.7 (male); 1.4 (female)
• Bilirubin (sum of conjugated + unconjugated or total) =< 1.5 x upper limit of normal (ULN) for age
• Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L. For the purpose of this study, the ULN for SGPT is 45 U/L
• Patients with seizure disorder may be enrolled if on anticonvulsants and well controlled as evidenced by no increase in seizure frequency in the prior 7 days. For patients a history of seizure but not on anticonvulsants, no seizure in the past 3 months
• Nervous system disorders (Common Terminology Criteria for Adverse Events [CTCAE] version [v]5) resulting from prior therapy must be =< grade 2, with the exception of decreased tendon reflex (DTR). Any grade of DTR is eligible

Additional inclusion and exclusion crieria may apply 

Exclusion Criteria

• Pregnant or breast-feeding women will not be entered on this study due to risks of fetal and teratogenic adverse events as seen in animal/human studies, OR because there is yet no available information regarding human fetal or teratogenic toxicities. Pregnancy tests must be obtained in girls who are post-menarchal. Males or females of reproductive potential may not participate unless they have agreed to use two effective methods of birth control, including a medically accepted barrier or contraceptive method (e.g., male or female condom) for the duration of the study and for 3 months + 2 days for males and 6 months + 2 days for females after receiving the last dose of BAY 1895344 (elimusertib) on the study. Abstinence is an acceptable method of birth control. Female patients must not breastfeed during treatment and until 4 months after last study drug administration
• Corticosteroids: Patients receiving corticosteroids who have not been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment are not eligible. If used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
• Patients who are currently receiving another investigational drug are not eligible
• Patients who are currently receiving other anti-cancer agents are not eligible
• Patients who are receiving cyclosporine, tacrolimus or other agents to prevent graft-versus-host disease post bone marrow transplant are not eligible for this trial
• Patients who are currently receiving drugs that are strong inducers or inhibitors of CYP3A4 are not eligible. Strong inducers or inhibitors of CYP3A4 should be avoided from 14 days prior to enrollment to the end of the study. Drugs that are considered sensitive or narrow therapeutic range CYP3A4 substrates should be avoided for the duration of protocol therapy
• Dedicated CNS imaging is not required but patients with current active CNS metastasis whether symptomatic or discovered incidentally without clinical symptoms, will be excluded from study participation
• Patients who have an uncontrolled infection are not eligible
• Patients who have received a prior solid organ transplantation are not eligible
• Patients who in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study are not eligible

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Study Description

This is a two-part study of pembrolizumab (MK-3475) in pediatric participants who have any of the following types of cancer:

• advanced melanoma (6 months to <18 years of age),
• advanced, relapsed or refractory programmed death-ligand 1 (PD-L1)-positive malignant solid tumor or other lymphoma (6 months to <18 years of age),
• relapsed or refractory classical Hodgkin lymphoma (rrcHL) (3 years to <18 years of age), 
• advanced relapsed or refractory microsatellite-instability-high (MSI-H) solid tumors (6 months to <18 years of age).
• advanced relapsed or refractory tumor-mutational burden-high ≥10 mutation/Mb (TMB-H) solid tumors (6 months to <18 years of age)

Part 1 will find the maximum tolerated dose (MTD)/maximum administered dose (MAD), confirm the dose, and find the recommended Phase 2 dose (RP2D) for pembrolizumab therapy. Part 2 will further evaluate the safety and efficacy at the pediatric RP2D.

The primary hypothesis of this study is that intravenous (IV) administration of pembrolizumab to children with either advanced melanoma; a PD-L1 positive advanced, relapsed or refractory solid tumor or other lymphoma; advanced, relapsed or refractory MSI-H solid tumor; or rrcHL, will result in an Objective Response Rate (ORR) greater than 10% for at least one of these types of cancer.

With Amendment 8, enrollment of participants with solid tumors and of participants aged 6 months to <12 years with melanoma were closed. Enrollment of participants aged ≥12 years to ≤18 years with melanoma continues. Enrollment of participants with MSI-H solid tumors also continues.

Inclusion Criteria

• Between 6 months and <18 years of age (or between 3 years and <18 years of age for rrcHL participants) on day of signing informed consent/assent (the first 3 participants dosed in Part 1 are to be ≥ 6 years of age)
• Histologically- or cytologically-documented, locally-advanced, or metastatic solid malignancy or lymphoma that is incurable and has failed prior standard therapy, or for which no standard therapy exists, or for which no standard therapy is considered appropriate
• Any number of prior treatment regimens
• Tissue (or lymph node biopsy for rrcHL participants) available from an archival tissue sample or, if appropriate, a newly obtained core or excisional biopsy of a tumor lesion not previously irradiated
• Advanced melanoma or PD-L1-positive advanced, relapsed, or refractory solid tumor or lymphoma
• Measurable disease based on RECIST 1.1 (Or based on IWG [Cheson, 2007] [i.e., measurement must be >15 mm in longest diameter or >10 mm in short axis] for rrcHL participants)
• Participants with neuroblastoma with only metaiodobenzylguanidine (MIBG)-positive evaluable disease may be enrolled
• Lansky Play Scale ≥50 for participants from 6 months up to and including 16 years of age; or Karnofsky score ≥50 for participants >16 years of age
• Adequate organ function
• Female participants of childbearing potential should have a negative urine or serum pregnancy test within 72 hours prior to receiving the first dose of study medication
• Female participants of childbearing potential must be willing to use 2 methods of contraception or be surgically sterile, or abstain from heterosexual activity for the course of the study through 120 days after the last dose of study medication
• Male participants of reproductive potential must agree to use an adequate method of contraception starting with the first dose of study medication through 120 days after the last dose of study medication

Exclusion Criteria

• Currently participating and receiving study therapy in, or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the date of allocation/randomization
• Diagnosis of immunodeficiency or receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the date of allocation/randomization
• Prior systemic anti-cancer therapy including investigational agent within 2 weeks prior to study Day 1 or not recovered from adverse events due to a previously administered agent
• Prior radiotherapy within 2 weeks of start of study treatment
• Known additional malignancy that is progressing or requires active treatment with the exception of basal cell carcinoma of the skin, squamous cell carcinoma of the skin or carcinoma in situ (eg, breast carcinoma, cervical carcinoma in situ) with potentially curative therapy, or in situ cervical cancer
• Known active central nervous system (CNS) metastases and/or carcinomatous meningitis
• Tumor(s) involving the brain stem
• Severe hypersensitivity (≥ Grade 3) to pembrolizumab and/or any of its excipients
• Active autoimmune disease that has required systemic treatment in past 2 years; replacement therapy (such as thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is acceptable
• Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis.
• Active infection requiring systemic therapy
• Pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial through 120 days after the last dose of study medication
• Prior therapy with an anti-programmed cell death (PD)-1, anti-PD-ligand 1 (anti-PD-L1), anti-PD-L2 agent, or any agent directed to another stimulatory or inhibitory T-cell receptor (eg, cytotoxic lymphocyte associated protein-4 [CTLA-4], OX-40, CD137)
• Human immunodeficiency virus (HIV)
• Hepatitis B or C
• Known history of active tuberculosis (TB; Bacillus tuberculosis)
• Received a live vaccine within 30 days of planned start of study medication
• Has undergone solid organ transplant at any time, or prior allogeneic hematopoietic stem cell transplantation within the last 5 years. (Participants who have had an allogeneic hematopoietic transplant >5 years ago are eligible as long as there are no symptoms of Graft Versus Host Disease [GVHD].)
• History or current evidence of any condition, therapy, or laboratory abnormality, or known severe hypersensitivity to any component or analog of the trial treatment, that might confound the results of the trial, or interfere with the participant's participation for the full duration of the study
• Known psychiatric or substance abuse disorders that would interfere with the requirements of the study

Publications

Geoerger B, Kang HJ, Yalon-Oren M, Marshall LV, Vezina C, Pappo A, Laetsch TW, Petrilli AS, Ebinger M, Toporski J, Glade-Bender J, Nicholls W, Fox E, DuBois SG, Macy ME, Cohn SL, Pathiraja K, Diede SJ, Ebbinghaus S, Pinto N. Pembrolizumab in paediatric patients with advanced melanoma or a PD-L1-positive, advanced, relapsed, or refractory solid tumour or lymphoma (KEYNOTE-051): interim analysis of an open-label, single-arm, phase 1-2 trial. Lancet Oncol. 2020 Jan;21(1):121-133. doi: 10.1016/S1470-2045(19)30671-0. Epub 2019 Dec 4.