Canadian clinical trial registry

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Study Description

The purpose of this study is to determine whether nivolumab plus brentuximab vedotin (followed by brentuximab vedotin plus bendamustine in patient with suboptimal response) is safe and effective in treating patients with Hodgkin's lymphoma (cHL). Eligible patients are children, adolescents, and young adults relapsed or refractory to first line.

Inclusion Criteria

• Classic Hodgkin Lymphoma (cHL), relapsed or refractory
• Minimal limitation on activities of daily living as measured by Karnofsky ≥ 50 for participants > 16 years of age or Lansky ≥ 50 for participants ≤ 16 years of age.
• One prior anti-cancer therapy that did not work

Exclusion Criteria

• Active, known, or suspected autoimmune disease or infection
• Active cerebral/meningeal disease related to the underlying malignancy
• More than one line of anti-cancer therapy or no treatment at all
• Received a stem cell transplant for Hodgkin Lymphoma and/or a solid organ transplant
• Prior treatment with any drug that targets T cell co-stimulation pathways (such as checkpoint inhibitors)

Other protocol defined inclusion/exclusion criteria could apply

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Centres

Study Description

This is a multicenter, open-label, single-arm study to evaluate the safety and dosimetry of Lutathera in adolescent patients 12 to <18 years old with somatostatin receptor positive GEP-NETs and PPGLs. The study will enroll at least 8 patients in the GEP-NET cohort and as many adolescents with PPGL as possible in the exploratory PPGL cohort.

The study schedule for each patient consists of the screening period (up to 2 weeks) followed by the treatment period (4 treatment administrations at 8-week interval), and the follow-up period (5 years).

The treatment period will consist of 4 Lutathera treatments administered at 8-week intervals. Lutathera administration will occur on Week 1 Day 1 of each cycle. Each patient will receive a total of 4 doses of Lutathera (7.4 GBq/200 mCi x 4 administrations every 8 weeks; cumulative dose: 29.6 GBq/800 mCi). An infusion of 2.5% Lysine - Arginine amino acid (AA) solution will be co-administered with each Lutathera dose for renal protection according to the approved Lutathera local prescribing information. An antiemetic will be administered prior to infusion of the AA solution for prevention of infusion-related nausea and vomiting.

The dosimetry and PK assessments will be performed during the first week after the 1st Lutathera dose, i.e. one time during the study treatment period for each patient. The dosimetry analysis will allow for estimation from the 1st Lutathera administration of the cumulative absorbed radiation dose from 4 Lutathera doses and also for taking a decision on the next dose levels. In the exceptional circumstances when dosimetry cannot be performed in a particular patient after the first Lutathera dose, it should be completed as soon as feasible upon a later dose. In order to minimize risk for each study subject, an accelerated analysis of dosimetry and safety data will be performed for each patient in the study, to enable the Investigator to take a decision for the subsequent Lutathera doses. The results of dosimetry assessments (imaging and blood dosimetry) will be provided to the investigators for their evaluation prior to administration of subsequent therapeutic cycles in each patient.

A total follow-up period of 5 years (60 months) after the last Lutathera dose will take place for each patient who received at least one dose of Lutathera. This follow-up period will be comprised of a short-term follow-up of 6 months to evaluate cumulative Lutathera toxicities, followed by a long-term follow up of another 54 months.

Inclusion Criteria

• GEP-NET cohort: presence of metastasized or locally advanced, inoperable (curative intent), histologically proven, G1 or G2 (Ki-67 index =< 20%), well differentiated GEP-NET.

  or PPGL cohort: presence of metastasized or locally advanced, inoperable (curative intent), histologically proven PPGL.

• Patients from 12 to < 18 years of age at the time of enrollment.
• Expression of somatostatin receptors confirmed by a somatostatin receptor imaging (SRI) modality within 3 months prior to enrollment, with tumor uptake Laboratory parameters:observed in the target lesions more or equal to the normal liver uptake.
• Performance status as determined by Karnofsky score >= 50 or Lansky Play-Performance Scale score >= 50.
• Parent's ability to understand and the willingness to sign a written informed consent document for adolescents as determined by local regulations. Adolescents will sign assent along with parental/legal guardian consent or will co-sign consent with parent/legal guardian in accordance with local regulation, prior to participation in the study.

Other inclusion and exclusion criteria may apply and will be discussed with you by the study team. 

Exclusion Criteria

• Laboratory parameters:
  • Estimated creatinine clearance calculated by the Cockroft-Gault method < 70 mL/min
  • Hb concentration <5.0 mmol/L (<8.0 g/dL); WBC <2x109/L; platelets <75x109/L.
  • Total bilirubin >3 x ULN for age.
  • Serum albumin <3.0 g/dL unless prothrombin time is within the normal range.
• Established or suspected pregnancy.
• Breastfeeding female patients unless they accept to discontinue breastfeeding from the 1st dose until 3 months after the last administration of study drug.
• Female patients of child-bearing potential, unless they are using highly effective methods of contraception during treatment and for 6 months after the last dose of Lutathera.
• Sexually active male patients, unless they agree to remain abstinent or be willing to use effective methods of contraception.
• Patients for whom in the opinion of the investigator other therapeutic options are considered more appropriate than the therapy offered in the study, based on patient and disease characteristics.
• Current spontaneous urinary incontinence.
• Other known co-existing malignancies except non-melanoma skin cancer and carcinoma in situ of the uterine cervix, unless definitively treated and proven no evidence of recurrence for 5 years.
• Hypersensitivity to the study drug active substance or to any of the excipients.
• Patients with any other significant medical, psychiatric, or surgical condition, currently uncontrolled by treatment, which may interfere with the completion of the study.
• Patient with known incompatibility to CT Scans with I.V. contrast due to allergic reaction or renal insufficiency. If such a patient can be imaged with MRI, then the patient would not be excluded.
• Patients who received any investigational agent within the last 30 days.

Other inclusion and exclusion criteria may apply and will be discussed with you by the study team. 

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Centres

Study Description

Brief Summary:

This is a phase 1 study to evaluate the safety of intralesional talimogene laherparepvec administration in pediatric subjects with advanced non-CNS tumors that are amenable to direct injection.

Detailed Description:

This is a phase 1, multicenter, open-label study of talimogene laherparepvec in pediatric subjects with advanced non-CNS tumors that are amenable to direct injection in the clinical setting. Approximately 18 -27 treated pediatric subjects are expected to be enrolled into 2 cohorts stratified by age (permissible based on the incidence of DLTs, a minimum of 6 subjects/cohort and a minimum of 18 subjects total). DLT will be evaluated based on 6 to 12 DLT-evaluable subjects in each cohort. The DLT evaluation period is 35 days from the initial administration of talimogene laherparepvec.

Inclusion Criteria

• Subject's legally acceptable representative has provided informed consent/assent when the subject is legally too young to provide informed consent/assent and the subject has provided written assent based on local regulations and/or guidelines prior to any study-specific activities/procedures being initiated.
• Should be willing to submit local HSV-1 serostatus within 28 days prior to enrollment.
• Subject must be a candidate for intralesional injection, defined as one or more of the following:
  • at least 1 injectable lesion ≥ 10 mm in longest diameter
  • multiple injectable lesions that in aggregate have a longest diameter of ≥ 10 mm
• Life expectancy > 4 months from the date of enrollment.
• Male or female subjects 2 to ≤ 21 years of age at the time of informed consent/assent.
• Histologically or cytologically confirmed non-CNS solid tumor that recurred after standard/frontline therapy, or for which there is no standard/frontline therapy available.
• Presence of measurable or non-measurable lesions as defined by irRC-RECIST
• Performance status as per protocol
• Female subject of childbearing potential should have a negative urine or serum pregnancy test within 72 hours prior to dosing.
• Adequate organ function as defined in protocol

Exclusion Criteria

• Diagnosis of leukemia, non-Hodgkin's lymphoma, Hodgkin's disease, or other hematologic malignancy.
• Radiotherapy to the bone marrow within 6 weeks prior to enrollment OR within 3 months prior to enrollment if prior radiotherapy to the craniospinal axis or to at least 60% of the pelvis was received; within 2 weeks prior to enrollment if local palliative radiotherapy was received.
• Primary ocular or mucosal melanoma.

• History of other malignancy within the past 5 years with the following exception:

  • malignancy treated with curative intent and with no known active disease present and has not received chemotherapy for > 5 years before enrolment and felt to be at low risk for recurrence by the treating physician.

• History or evidence of active autoimmune disease that requires systemic treatment (ie, with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (eg, thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment.
• Active herpetic skin lesions or prior complications of herpetic infection (eg, herpetic keratitis or encephalitis).
• Prior treatment with talimogene laherparepvec or any other oncolytic virus.
• Prior treatment with a tumor vaccine.
• Requires intermittent or chronic treatment with an antiherpetic drug (eg, acyclovir), other than intermittent topical use.
• Expected to require other cancer therapy while on study with the exception of local palliative radiation treatment.
• Has acute or chronic active hepatitis B virus or hepatitis C virus infection or received treatment with nucleotide analogs such as those used in the treatment of hepatitis B virus (eg, lamivudine, adefovir, tenofovir, telbivudine, and entecavir), ribavirin, or interferon alpha within 12 weeks of initiation of study treatment.
• Known or suspected human immunodeficiency virus (HIV) infection.
• Received live vaccine within 28 days prior to enrollment.
• No antiplatelet or anticoagulation medications allowed within 7 days prior totalimogene laherparepvec injection except low-dose heparin needed to maintain venous catheter patency.
• Female subject is pregnant or breast-feeding, or planning to become pregnant during study treatment and through 3 months after the last dose of talimogene laherparepvec.
• Female subject of childbearing potential who is unwilling to use acceptable method(s) of effective contraception during study treatment and through 3 months after the last dose of talimogene laherparepvec. Note: Acceptable methods of effective contraception are defined in the informed consent/assent form. Where required by local laws and regulations, additional country-specific contraception requirements may be outlined in a country-specific protocol supplement at the end of the Appendix Section of protocol.
• Subject has known sensitivity to any of the products or components to be administered during dosing.
• Subject likely to not be available to complete all protocol-required study visits or procedures, and/or to comply with all required study procedures to the best of the subject and investigator's knowledge.
• History or evidence of any psychiatric disorder, substance abuse or any other clinically significant disorder, condition or disease (with the exception of those outlined above) that, in the opinion of the investigator or Amgen physician, if consulted, would pose a risk to subject safety or interfere with the study evaluation, procedures or completion.
• Subject who is unwilling to minimize exposure with his/her blood or other body fluids to individuals who are at higher risks for HSV-1 induced complications (immunosuppressed individuals, HIV-positive individuals, pregnant women, or children under the age of 1 year) during talimogene laherparepvec treatment and through 28 days after the last dose of talimogene laherparepvec.

• Evidence of clinically significant immunosuppression such as the following:

  • primary immunodeficiency state such as severe combined immunodeficiency disease
  • concurrent opportunistic infection
  • receiving systemic immunosuppressive therapy (> 2 weeks prior to enrollment), including oral steroid doses (with the exception of maintenance physiologic replacement). Subjects who require intermittent use of steroids for inhalation or local steroid injection will not be excluded from the study
  • less than 6 months from autologous bone marrow transplant or stem cell infusion
  • history of allogeneic bone marrow transplant
• History or evidence of xeroderma pigmentosum.
• Sexually active subjects and their partners unwilling to use a male or female latex condom to avoid potential viral transmission during sexual contact while on treatment and within 30 days after treatment with talimogene laherparepvec. For those with latex allergies, polyurethane condoms may be used.
• Prior chemotherapy, treatment dose radiotherapy, or biological cancer therapy within 14 days prior to enrollment or has not recovered to Common Terminology Criteria for Adverse Events version 4.0 (CTCAE) grade 1 or better from adverse event due to cancer therapy administered more than 14 days prior to enrollment.
• CNS tumor or clinically active brain metastases (patient with a history of treated brain metastases are eligible if there is radiographic evidence of improvement upon the completion of CNS-directed therapy and no evidence of interim progression between the completion of CNS-directed therapy and the screening radiographic study).
• Currently receiving treatment in another investigational device or drug study, or less than 14 days since ending treatment on another investigational device or drug study(ies) or has not recovered to CTCAE version 4.0 grade 1 or better from adverse event due to other investigational device or drug study administered more than 14 days prior to enrollment. Other investigational procedures while participating in this study are excluded.
• Major surgery ≤ 14 days prior to enrollment or has not recovered to CTCAE version 4.0 grade 1 or better from adverse event due to surgery performed more than 14 days prior to enrollment.

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Centres

Study Description

This is a phase 1/2, open-label, interventional clinical trial that will study the response rate of pediatric glioma and plexiform neurofibroma (PN) to oral administration of trametinib. Patients meeting all inclusion criteria for a given study group will receive the study medication at a daily dose of 0.025 mg/kg up to a total of 18 cycles, in 28-day cycles. A total of 150 patients will be recruited as part of this clinical study.

Patients aged between 1 month (corrected age) and 25 years old will be eligible, in order to include a maximum of patients affected by low-grade glioma (LGG) and PN.

This study includes four groups:

All patients except patients with PN must have failed at least one line of treatment.

The study will also explore the molecular mechanisms behind tumor development, progression and resistance to treatment. Patients with neurofibromatosis type 1 (NF1) and LGG, NF1 patients with PN, patients with LGG with a B-Raf Serine/Threonine-protein Kinase/Proto-oncogene Encoding B-Raf (BRAF) fusion and patients with glioma of any grade with activation of the Mitogen-activated Protein Kinase/Extracellular Signal-regulated Kinases (MAPK/ERK) pathway.rmore, this study will also explore important aspects for patients with brain tumors by including assessment of quality of life and neuropsychological evaluation.

Inclusion Criteria

1. Signed written informed consent Prior to study participation, written informed consent from participants, or in the case of minors, written permission (informed consent) from parents, guardians, or legally acceptable representatives must be obtained according to local laws and regulations.
2. Assent Assent from minor participants should be obtained per local laws and regulations and should be documented in accordance with local requirements.
3. Study activities compliance. Participants must be willing and able to comply with scheduled visits, treatment schedule, laboratory testing, and other requirements of the study, including disease assessment by contrast-enhanced MRI.
4. Age Patient must be aged ≥ 1 month (corrected age) to ≤ 25 years at the time of study enrollment
5. Study group Participants must belong to one of the following groups to be eligible. Group 1: NF1 with progressing/refractory LGG Group 2: NF1 with PN Group 3: Progressing/refractory LGG with KIAA 1549-BRAF fursion Group 4: Progressing/refractory glioma with activation of the MAPK/ERK pathway who do not meet criteria for other study groups
6. Tumor Tissue Sample Tumor tissue will be required for all patients (fresh tissue recommended when available). Patients with NF1 and LGG or PN can still be enrolled without tissue if no surgery or biopsy was conducted.

7 Previous MRI At least two previous MRIS fro Group 1, 3, 4 and one previous MRI for Group 2 must be available for central review.

8. Prior therapy Participants must have failed at least one line of treatment including chemotherapy and/or radiation therapy except for plexiform neurofibroma (since there is no recognized standard treatment for his tumor).

9. Prior therapy toxicity Patients must have recovered to grade ≤ 1 from acute toxic effects of all prior chemotherapy, immunotherapy or radiotherapy prior to enrollment. Toxicities will be graded as per the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE), version 5.0.

10. Prior therapy timeline Participants having previously received a chemotherapy agent(s) and/or radiation must conform to the timeline described below. There is no limitation on the number of previous treatments or cycles received.

• An interval of at least 28 days after the last dose of a myelosuppressive chemotherapy, and at least 42 days after the last dose of Nitrosoureas is required prior to starting trametinib.
• An interval of at least 28 days after the last dose of any biologic agents including monoclonal antibody treatment, immunotherapy, viral therapy and other investigational agent is required prior to starting trametinib.
• An interval of at least 84 days after the end of the radiation therapy is required prior to starting trametinib.

• An interval of at least 48 hours for short-acting colony stimulating factor agents and 10 days interval for long-acting colony stimulating factor agents are required prior to starting trametinib.

  11. Life expectancy Patients must have a life expectancy of greater than 6 months.

  12. Performance level Patients must have a performance status corresponding to a Lansky/Karnofsky score ≥50.

  13. Organ Function Requirements

Participants must have normal organ and marrow function as defined below:

• Total leukocytes ≥ 3,000/µL
• Absolute neutrophil count (ANC) ≥ 1, 000/µL
• Hemoglobin > 80 g/l (transfusion independent within last 2 weeks)
• Platelet count ≥ 100,000/µL (transfusion independent within last 2 weeks)
• Total bilirubin ≤ 1.5 times the ULN within normal institutional limits for age
• Alanine Aminotransferase (ALT) ≤ 2.5 × upper limit of normal (ULN)*
• Creatinine serum within normal institutional limits for age OR creatinine clearance ≥60 mL/min/1.73 m2 for participants with creatinine levels above institutional normal.
• Creatine phosphokinase ≤ 2x ULN
• A cardiac function defined as Corrected QT (QTcB) interval < 480 msec and LVEF ≥ lower limit of normal (LLN) by echocardiogram (ECHO).

• Blood pressure must be smaller or equal to the 95th percentile for patient's age, height and gender.

  • For uniformity reasons, the ULN for ALT will be 45 U/L in this study

    14. Reproductive status Children of childbearing and child-fathering potential must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a female become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Males and females treated or enrolled in this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 4 months after completion of trametinib administration. Furthermore, females of childbearing potential (older than 10 years old for this study) must have a negative serum pregnancy test within 7 days prior to the start of study drug. A urine pregnancy test will be done according to evaluation calendar at at 30 days and at 6 months following the last does of study medications.

    15. Administration of oral medication Patients must be able to ingest and retain enterally (per os, nasogastric tube or gastrostomy) administered medication and be free of any clinically significant gastrointestinal abnormalities limiting the absorption of the medication. Tablets cannot be crushed. If the patient cannot swallow tablets, the liquid form should then be used.

SPECIFIC INCLUSION CRITERIA

Participants must belong to one of the following groups to be eligible.

• Group 1: NF1 with Progressing/Refractory LGG (42 patients).
• Group 2: NF1 with Progressing/Refractory PN (46 patients).
• Group 3: Progressing/Refractory LGG with KIAA1549-BRAF fusion (42 patients).
• Group 4: Progressing/Refractory CNS Glioma with activation of the MAPK/ERK pathway who do not meet criteria of other study groups (20 patients).

Exclusion Criteria

1. Other investigational agents Patients who are receiving any other investigational agents.
2. Cardiac exclusion criteria Patients who have an ejection fraction inferior to the institution LLN, a QTcB ≥ 480 msec or an absolute resting left ventricular ejection fraction (LVEF) of ≤ 39% are not eligible for enrolment.
3. Presence of another malignancy Patient has any other malignancy except if the other primary malignancy is neither currently clinically significant nor requiring active intervention.
4. Previous MEK inhibitor treatment Participants previously treated with a MEK inhibitor who showed less than stable disease during treatment.
5. Tumor with BRAF V600E mutation Patients with a tumor presenting a positive BRAF V600E mutation.
6. Other uncontrollable medical disease Patient has a severe and uncontrollable medical disease (i.e., uncontrolled diabetes, chronic renal disease or active uncontrolled infection), has a chronic liver disease (i.e., chronic active hepatitis and cirrhosis), uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
7. Known HIV infection Patient has a known diagnosis of human immunodeficiency virus (HIV) infection, hepatitis B or C.
8. Previous surgery Patients who had major surgery within 2 weeks prior to study entry.
9. Allergy History of allergic reactions attributed to compounds of similar chemical or biologic composition to trametinib.
10. Previous history of non-compliance Patients with a previous significant history of non-compliance to their treatment or medical regimen.
11. Pregnant or breastfeeding patients Pregnant or breastfeeding female patients are not eligible for this study.

Publications

Perreault S, Larouche V, Tabori U, Hawkin C, Lippé S, Ellezam B, Décarie JC, Théoret Y, Métras MÉ, Sultan S, Cantin É, Routhier MÈ, Caru M, Legault G, Bouffet É, Lafay-Cousin L, Hukin J, Erker C, Jabado N. A phase 2 study of trametinib for patients with pediatric glioma or plexiform neurofibroma with refractory tumor and activation of the MAPK/ERK pathway: TRAM-01. BMC Cancer. 2019 Dec 27;19(1):1250. doi: 10.1186/s12885-019-6442-2.

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Centres

Study Description

This is an open-label, Phase 1/2 multicenter dose escalation study in pediatric patients with relapsed or refractory extracranial solid tumors (Phase 1), with additional expansion cohorts (Phase 2) in patients with primary brain tumors harboring NTRK1/2/3 or ROS1 gene fusions, and extracranial solid tumors harboring NTRK1/2/3 or ROS1 gene fusions.

Inclusion Criteria

1. Disease status:

   • Phase 1 portion (closed): Participants must have measurable or evaluable disease, as defined by RECIST v1.1

   • Phase 2 portion:

     • Part B: Participants must have measurable or evaluable disease, as defined by RANO
     • Part C (closed): Participants must have measurable or evaluable disease, as defined by RECIST v1.1 ± Curie Scale
     • Part D: Participants must have measurable or evaluable disease, as defined by RECIST v1.1
     • Part E (closed): Participants must have measurable or evaluable disease, as defined by RECIST v1.1 ± Curie Scale or RANO

2. Tumor type:

   • Phase 1 portion:

     * Part A: Relapsed or refractory extracranial solid tumors

   • Phase 2 portion

     • Part B: Primary brain tumors with NTRK1/2/3 or ROS1 gene fusions; gene fusions are defined as those predicted to translate into a fusion protein with a functional TRKA/B/C or ROS1 kinase domain, without a concomitant second oncodriver as determined by a nucleic acid-based diagnostic testing method
     • Part D: Extracranial solid tumors (including NB) with NTRK1/2/3 or ROS1 gene fusions; gene fusions are defined as those predicted to translate into a fusion protein with a functional TRKA/B/C or ROS1 kinase domain, without a concomitant second oncodriver as determined by a nucleic acid-based diagnostic testing method
3. Histologic/molecular diagnosis of malignancy at diagnosis or the time of relapse
4. Archival tumor tissue from diagnosis or, preferably, at relapse
5. Performance status: Lansky or Karnofsky score ≥ 60% and minimum life expectancy of at least 4 weeks
6. Prior therapy: Participants must have a disease that is locally advanced, metastatic, or where surgical resection is likely to result in severe morbidity, and who have no satisfactory treatment options for solid tumors and primary CNS tumors that are neurotrophic tyrosine receptor kinase (NTRK) or ROS1 fusion-positive
7. Participants must have recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to enrollment
8. Adequate organ and neurologic function
9. Females of childbearing potential must have a negative serum pregnancy test during screening and be neither breastfeeding nor intending to become pregnant during study participation. Agreement to remain abstinent or use use combined contraceptive methods prior to study entry, for the duration of study participation and in the following 90 days after discontinuation of study treatment.
10. For male participants with a female partner of childbearing potential or a pregnant female partner: Agreement to remain abstinent or use a condom during the treatment period and for at least 3 months after the last dose of study drug

Exclusion Criteria

1. Receiving other experimental therapy
2. Known congenital long QT syndrome
3. History of recent (3 months) symptomatic congestive heart failure or ejection fraction ≤50% at screening
4. Known active infections
5. Familial or personal history of congenital bone disorders, bone metabolism alterations or osteopenia
6. Receiving Enzyme Inducing Antiepileptic Drugs (EIAEDs) within 14 days of first dose.
7. Prior treatment with approved or investigational TRK or ROS1 inhibitors
8. Known hypersensitivity to entrectinib or any of the other excipients of the investigational medicinal product
9. Patients with NB with bone marrow space-only disease
10. Incomplete recovery from acute effects of any surgery prior to treatment.
11. Active gastrointestinal disease or other malabsorption syndromes that would impact drug absorption.
12. Other severe acute or chronic medical or psychiatric condition or lab abnormality that may increase the risk associated with study participation, drug administration or may interfere with the interpretation of study results.

Publications

Doebele RC, Drilon A, Paz-Ares L, Siena S, Shaw AT, Farago AF, Blakely CM, Seto T, Cho BC, Tosi D, Besse B, Chawla SP, Bazhenova L, Krauss JC, Chae YK, Barve M, Garrido-Laguna I, Liu SV, Conkling P, John T, Fakih M, Sigal D, Loong HH, Buchschacher GL Jr, Garrido P, Nieva J, Steuer C, Overbeck TR, Bowles DW, Fox E, Riehl T, Chow-Maneval E, Simmons B, Cui N, Johnson A, Eng S, Wilson TR, Demetri GD; trial investigators. Entrectinib in patients with advanced or metastatic NTRK fusion-positive solid tumours: integrated analysis of three phase 1-2 trials. Lancet Oncol. 2020 Feb;21(2):271-282. doi: 10.1016/S1470-2045(19)30691-6. Epub 2019 Dec 11. Erratum in: Lancet Oncol. 2020 Feb;21(2):e70. Lancet Oncol. 2020 Jul;21(7):e341. Lancet Oncol. 2020 Aug;21(8):e372.

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Centres

Study Description

This is a Phase 1/2, multicenter, open-label trial of avapritinib in patients aged 2 to less than 18 years of age with with relapsed/refractory (R/R) solid tumors with mutations (including non-synonymous point mutations, insertions, and deletions) in KIT or PDGFRA, or gliomas with the H3K27M mutation, and no available alternative treatment options. This is a single-arm trial in which all patients will receive avapritinib. The study consists of 2 parts: dose confirmation, safety, and PK (Part 1) and initial efficacy, safety, and PK at the Part 2 recommended dose (Part 2).

Inclusion Criteria

• Patient has confirmed diagnosis of a R/R solid or CNS tumor with a mutation in KIT or PDGFRA (confirmed by local mutational testing of tumor sample) that has progressed despite standard therapy and no alternative treatment option is available OR Confirmed diagnosis of H3K27M mutant glioma that has failed standard therapy or for which no standard therapy that may convey clinical benefit exists, as judged by the Investigator.
• Patients with CNS disease should be on a stable dose (≤10% change) of corticosteroids for at least 7 days prior to first dose of avapritinib, with no plans for dose escalation.
• Disease extent

  1. Part 1: All patients must have at least 1 measurable lesion as defined by RECIST v1.1 or RANO (for CNS tumors). If radiation therapy has been administered, at least 1 measurable lesion must not have been irradiated, or must have clearly progressed since being irradiated.

  2. Part 2: At least one measurable lesion as defined by RECIST v1.1 (RANO for CNS tumors). If radiation therapy has been administered, at least 1 measurable lesion must not have been irradiated within the previous 12 weeks, or must have clearly progressed since being radiated (per RANO). For up to 5 patients with H3K27M mutant gliomas where there is no standard therapy that may convey clinical benefit as judged by the investigator, progression of disease of a measurable lesion after irradiation is not required.
• A Lansky (≤16 years of age) or Karnofsky (>16 years of age) score of at least 50. If the patient is unable to walk due to paralysis, but is mobile in a wheelchair, the patient is considered ambulatory for the purpose of assessing their performance status.
• Patient agrees to utilize contraception consistent with local regulations

Exclusion Criteria

• Patient has any of the following within 14 days before the first dose of study treatment:

  1. Platelet count <75 × 109/L (<100 × 109/L if a CNS tumor).
  2. Absolute neutrophil count (ANC) <1.0 × 109/L.
  3. Hemoglobin <8.0 g/dL (RBC transfusion ≥14 days before test is permitted to meet criterion).
  4. Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) >3 × the upper limit of normal (ULN) for age; except in patients with tumor involvement of the liver who must not have AST and ALT >5 × ULN for age.
  5. Total bilirubin >1.5 mg/dL for age; and in presence of Gilbert's syndrome, total bilirubin > 3 × ULN or direct bilirubin > 1.5 × ULN.
  6. Serum creatinine >1.5 × ULN for age.
  7. International normalized ratio (INR) or prothrombin time (PT) >ULN (>1.5 × ULN if on prophylactic reversible anticoagulants).
• Patient has a QT interval corrected using Fridericia's formula (QTcF) >470 msec. Patient has a familial or personal history of prolonged QT syndrome or Torsades de pointes.
• Patient has clinically significant, uncontrolled, cardiovascular disease including congestive heart failure Grade III or IV according to the New York Heart Association (NYHA) classification; myocardial infarction or unstable angina within the previous 6 months, uncontrolled hypertension (>99th percentile for age), or clinically significant, uncontrolled arrhythmias, including bradyarrhythmias that may cause QT prolongation (eg, Type II second degree heart block or third-degree heart block).
• Patient received the following systemic antineoplastic therapies:
  1. Systemic antineoplastic therapy (including experimental therapy within 5 half-lives or 28 days [6 weeks if prior nitrosurea], whichever is shorter).
  2. Focal external beam radiotherapy, including stereotactic radiosurgery, within 6 weeks prior to the first dose of avapritinib to either target or non-target lesions. Systemic radiopharmaceuticals, including nonstereotactic radiosurgery, within 2 weeks of the first dose of avapritinib (within 6 weeks for patients with CNS tumors). Craniospinal irradiation within 12 weeks prior to the first dose of avapritinib.
  3. All AEs related to other antineoplastic therapies (eg, systemic antineoplastics, radiotherapy) must have resolved to Grade ≤1 (Grade ≤2 for peripheral neuopathy and/or ototoxicity) prior to the first dose of avapritinib.
• Patient has previously received treatment with avapritinib.
• Patient received autologous stem cell transplant (SCT) following myeloablative therapy or chimeric antigen receptor T cell (CAR-T) therapy within 3 months prior to the first dose of avapritinib or prior allogeneic SCT within 1 year and no evidence of Grade 1 or greater graft-versus-host disease and no immunosuppressants for graft-versus-host disease (steroids for primary malignancy being permitted). Patients who received stem cell reinfusion following nonmyeloablative therapy are eligible once they meet the peripheral blood count criteria in Exclusion Criterion #1.
• Patient requires on going treatment or has received treatment within 28 days before the start of avapritinib administration with drugs or foods that are strong CYP3A inhibitors or inducers or EIAEDs (eg, carbamazepine, phenytoin, phenobarbital, and primidone). Please refer to Appendix 1 for a list of these drugs and/or foods.
• Patient has had a major surgical procedure within 14 days of the first dose of study treatment (procedures such as central venous catheter placement, tumor needle biopsy, and feeding tube placement are not considered major surgical procedures).
• Patient has a history of another primary malignancy that has been diagnosed or required therapy within 3 years before the first dose of avapritinib. The following prior malignancies are not exclusionary: completely resected basal cell and squamous cell skin cancer, curatively treated localized prostate cancer, and completely resected carcinoma in situ of any site.
• Female subjects of childbearing potential who are unwilling, if not post-menopausal or surgically sterile, to abstain from sexual intercourse or employ highly effective contraception from the time of informed consent and for at least 6 weeks after the last dose of study treatment. Male subjects who are unwilling, if not surgically sterile, to abstain from sexual intercourse or employ highly effective contraception from the time of informed consent and for at least 6 weeks after the last dose of study treatment. Refer to Section 5.4.2 for acceptable methods of contraception.
• Patient is pregnant
• Patient is breastfeeding.
• Patient has prior or ongoing clinically significant illness, medical condition, surgical history, physical finding, or laboratory abnormality that, in the Investigator's opinion, could affect the safety of the patient; alter the absorption, distribution, metabolism, or excretion of the study drug; or impair the assessment of study results.
• History of thrombosis requiring treatment within the past 6 months.
• Patients who require anticoagulants, with the exception of stable doses of prophylactic reversible anticoagulants.
• Patients who are unable to swallow tablets (in Part 1) or mini-tablets (in Part 2) within the sprinkle capsules.
• Patients with a known risk of intracranial bleeding, such as a brain aneurysm that has not been removed or repaired, or a history of intracranial bleeding within the past year, or radiographic evidence of hemorrhage on Screening MRI. Exceptions are patients with primary CNS tumors who are eligible unless CNS bleeding has occurred within 2 weeks of the first dose of avapritinib and patients with punctate hemorrhages <3 mm.
• History of a seizure disorder that is not well controlled on current antiepileptic medications. EIAEDs carbamazepine, phenytoin, phenobarbital, and primidone are prohibited.
• Patient is unwilling or unable to comply with scheduled visits, treatment administration plan, laboratory tests, or other study procedures and study restrictions

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Centres

Study Description

This study consists of 2 parts: Dose Escalation Part 1 and Dose Expansion Part 2.

The Dose Escalation Part 1 will evaluate the safety and tolerability of Avelumab in combination with Lenvatinib and determine the recommended Avelumab and Lenvatinib dose for expansion.

Dose Expansion Part 2 will assess the efficacy of Avelumab in combination with Lenvatinib by Progression-free Survival in participants with pre-defined primary central nervous system (CNS) tumors.

Inclusion Criteria

• Participants with histologically confirmed diagnosis of primary CNS malignancy as follows: a) Primary CNS tumors: the tumor should be considered high-grade histologically; prior radiotherapy is allowed; participants must have progressed after at least 1 prior systemic therapy, except for those with diffuse midline glioma with or without the H3 K27M mutation. b) Specific for participants with diffuse midline glioma with or without the H3 K27M mutation: prior radiotherapy is allowed; no more than 1 prior systemic therapy is allowed; participants with diffuse midline glioma with or without the H3 K27M mutation who have not received prior systemic therapy but have prior radiotherapy only are allowed to enroll
• On screening scans, measurable disease by RANO criteria
• Participants must have a Lansky performance status >= 50 for age <= 16 years or Karnofsky performance status >= 50 for age > 16 years at Screening

Other protocol defined inclusion criteria could apply

Exclusion Criteria

• Participants with low-grade gliomas, for example but not limited to, subependymal giant cell astrocytoma, pilocytic astrocytoma and World Health organization (WHO) Grade 1 tumors
• Participants demonstrating evidence of worsening of neurologic deficit within 1 week prior to initiation of study interventions
• Participants with bulky tumor, defined as: a) Tumor with any evidence of uncal herniation or midline shift; b) Tumor with a diameter of > 4 centimeters (cm) in 1 dimension on T2/ fluid-attenuated inversion recovery (FLAIR) images; c) Tumor that in the opinion of the Investigator shows significant mass effect
• Participants are not eligible if they experience uncontrolled seizures, defined as: a) Seizures requiring regular use of rescue medications. b) Seizures requiring increasing doses of antiepileptic medications. c) Seizures that in the opinion of the Investigator compromise the ability of the participant to tolerate study intervention or interfere with study procedures
• Participants who have received major surgery (including but not limited to neurosurgical resection, brain biopsy, or radiation to the primary brain tumor) within 28 days prior to the first dose of study interventions
• Participants with history of intracranial hemorrhage/spinal cord hemorrhage within 28 days prior to the first dose of study interventions

Other protocol defined exclusion criteria could apply

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Centres

Study Description

Open-label, dose escalation, monotherapy, basket trial with biomarker specific MTD expansion cohort/Phase II part.

The trial will consist of 2 parts:

1. Dose finding part to determine the MTD
2. Biomarker specific MTD expansion cohort/Phase II part to assess clinical anti-tumour activity in included tumour types

Inclusion Criteria

• Paediatric patients aged 1 year to <18 years at the time of informed consent
• Diagnosis of HGG, DIPG, low grade astrocytoma, medulloblastoma/PNET, ependymoma, neuroblastoma, RMS and tumours with ErbB deregulation
• Recurrent/refractory disease after they received at least one prior standard treatment regimen
• No effective conventional therapy exists
• Performance status >= 50% (Lansky for =<12ys; Karnofsky for >12ys)
• Further inclusion criteria apply

Exclusion Criteria

• Relevant toxicity from previous treatment
• Known pre-existing relevant cardiac , hepatic, renal, bone marrow dysfunction, ILD, keratitis
• Further exclusion criteria apply