Samotolisib in Treating Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphoma, or Histiocytic Disorders With TSC or PI3K/MTOR Mutations (A Pediatric MATCH Treatment Trial)

Completed · Phase 2

Conditions studied: Advanced Malignant Solid Neoplasm, Ann Arbor Stage III Non-Hodgkin Lymphoma, Ann Arbor Stage IV Non-Hodgkin Lymphoma, Malignant Glioma, Recurrent Ependymoma, Recurrent Ewing Sarcoma, Recurrent Glioma, Recurrent Hepatoblastoma, Recurrent Langerhans Cell Histiocytosis, Recurrent Malignant Germ Cell Tumor, Recurrent Malignant Solid Neoplasm, Recurrent Medulloblastoma, Recurrent Neuroblastoma, Recurrent Non-Hodgkin Lymphoma, Recurrent Osteosarcoma, Recurrent Peripheral Primitive Neuroectodermal Tumor, Recurrent Primary Central Nervous System Neoplasm, Recurrent Rhabdomyosarcoma, Recurrent Soft Tissue Sarcoma, Refractory Langerhans Cell Histiocytosis, Refractory Malignant Germ Cell Tumor, Refractory Malignant Solid Neoplasm, Refractory Neuroblastoma, Refractory Non-Hodgkin Lymphoma, Refractory Primary Central Nervous System Neoplasm, Rhabdoid Tumor, Stage III Osteosarcoma AJCC v7, Stage III Soft Tissue Sarcoma AJCC v7, Stage IV Osteosarcoma AJCC v7, Stage IV Soft Tissue Sarcoma AJCC v7, Stage IVA Osteosarcoma AJCC v7, Stage IVB Osteosarcoma AJCC v7, Wilms Tumor

In brief

This phase II Pediatric MATCH trial studies how well samotolisib works in treating patients with solid tumors, non-Hodgkin lymphoma, or histiocytic disorders with TSC or PI3K/MTOR mutations that have spread to other places in the body (metastatic) and have come back (recurrent) or do not respond to treatment (refractory). Samotolisib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.

Key facts

Study ID

NCT03213678

Run by

National Cancer Institute (NCI)

People needed

18

Starts

2017-11-28

Expected to finish

2024-12-31

Last updated by the study team

2026-04-21

Who can join

Age: 1 and older, up to 21. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Patient must have enrolled onto APEC1621SC/NCI-2017-01251/ NCT03155620 and must have been given a treatment assignment to Molecular Analysis for Therapy Choice (MATCH) to APEC1621D based on the presence of an actionable mutation as defined in APEC1621SC; note that treatment assignment may be to primary cohort A for patients with TSC1 or TSC2 loss of function mutations or primary cohort B for patients with other PI3K/MTOR pathway mutations
• Patients accruing to dose level 1 must have a body surface area >= 0.52 m\^2 at the time of study enrollment; patients accruing to dose level 2 must have a body surface area >= 0.37 m\^2 at the time of study enrollment; patients accruing to dose level -1 must have a body surface area >= 0.75 m\^2 at the time of study enrollment
• Patients must have radiographically measurable disease at the time of study enrollment; patients with neuroblastoma who do not have measurable disease but have metaiodobenzylguanidine (MIBG) positive (+) evaluable disease are eligible; measurable disease in patients with CNS involvement is defined as any lesion that is at minimum 10 mm in one dimension on standard magnetic resonance imaging (MRI) or computed tomography (CT)
• Note: The following do not qualify as measurable disease:
• Malignant fluid collections (e.g., ascites, pleural effusions)
• Bone marrow infiltration except that detected by MIBG scan for neuroblastoma
• Lesions only detected by nuclear medicine studies (e.g., bone, gallium or positron emission tomography [PET] scans) except as noted for neuroblastoma
• Elevated tumor markers in plasma or cerebrospinal fluid (CSF)
• Previously radiated lesions that have not demonstrated clear progression post radiation
• Leptomeningeal lesions that do not meet the measurement requirements for Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
• Bone lesions without an associated soft tissue mass >= 10 mm in greatest diameter; bone lesions with an associated soft tissue mass >= 10 mm in greatest diameter imaged by CT or MRI are considered measurable
• Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50 for patients =< 16 years of age; Note: neurologic deficits in patients with CNS tumors 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 cytotoxic or 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 growth factors 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; the duration of this interval must be discussed with the study chair and the study-assigned research coordinator
• 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 infusion (DLI) or boost infusion: >= 84 days after infusion and no evidence of graft versus host disease (GVHD)
• Autologous stem cell infusion including boost infusion: >= 42 days
• 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
• Note: radiation may not be delivered to "measurable disease" tumor site(s) being used to follow response to subprotocol treatment

You may not qualify if…

• Pregnant or breast-feeding women will not be entered on this study; 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 an effective contraceptive method while receiving study treatment and for 3 months after the last dose of LY3023414
• Concomitant medications
• 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
• Investigational drugs: patients who are currently receiving another investigational drug are not eligible
• Anti-cancer agents: patients who are currently receiving other anti-cancer agents are not eligible
• Anti-GVHD agents post-transplant: 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 have an uncontrolled infection are not eligible
• Patients who have insulin dependent diabetes are not eligible
• Patients who have received a prior solid organ transplantation are not eligible
• Patients with subependymal giant cell astrocytomas (SEGAs) 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

Where it is running

• Providence Alaska Medical Center — Anchorage, Alaska, United States
• Banner Children's at Desert — Mesa, Arizona, United States
• Banner University Medical Center - Tucson — Tucson, Arizona, United States
• Arkansas Children's Hospital — Little Rock, Arkansas, United States
• Kaiser Permanente Downey Medical Center — Downey, California, United States
• City of Hope Comprehensive Cancer Center — Duarte, California, United States
• Loma Linda University Medical Center — Loma Linda, California, United States
• Miller Children's and Women's Hospital Long Beach — Long Beach, California, United States
• Children's Hospital Los Angeles — Los Angeles, California, United States
• Mattel Children's Hospital UCLA — Los Angeles, California, United States
• Valley Children's Hospital — Madera, California, United States
• UCSF Benioff Children's Hospital Oakland — Oakland, California, United States
• Kaiser Permanente-Oakland — Oakland, California, United States
• University of California Davis Comprehensive Cancer Center — Sacramento, California, United States
• UCSF Medical Center-Mission Bay — San Francisco, California, United States
• Children's Hospital Colorado — Aurora, Colorado, United States
• Rocky Mountain Hospital for Children-Presbyterian Saint Luke's Medical Center — Denver, Colorado, United States
• Yale University — New Haven, Connecticut, United States
• Alfred I duPont Hospital for Children — Wilmington, Delaware, United States
• MedStar Georgetown University Hospital — Washington D.C., District of Columbia, United States
• Children's National Medical Center — Washington D.C., District of Columbia, United States
• University of Florida Health Science Center - Gainesville — Gainesville, Florida, United States
• Nemours Children's Clinic-Jacksonville — Jacksonville, Florida, United States
• University of Miami Miller School of Medicine-Sylvester Cancer Center — Miami, Florida, United States
• Children's Hospital of Alabama — Birmingham, Alabama, United States

Full record on ClinicalTrials.gov

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