Selpercatinib for the Treatment of Advanced Solid Tumors, Lymphomas, or Histiocytic Disorders With Activating RET Gene Alterations, a Pediatric MATCH Treatment Trial

Running, not enrolling · Phase 2

Conditions studied: Hematopoietic and Lymphatic System Neoplasm, Recurrent Ependymoma, Recurrent Ewing Sarcoma, Recurrent Hepatoblastoma, Recurrent Histiocytic and Dendritic Cell Neoplasm, Recurrent Langerhans Cell Histiocytosis, Recurrent Lymphoma, Recurrent Malignant Germ Cell Tumor, Recurrent Malignant Glioma, Recurrent Malignant Solid Neoplasm, Recurrent Medulloblastoma, Recurrent Neuroblastoma, Recurrent Non-Hodgkin Lymphoma, Recurrent Osteosarcoma, Recurrent Peripheral Primitive Neuroectodermal Tumor, Recurrent Rhabdoid Tumor, Recurrent Rhabdomyosarcoma, Recurrent Soft Tissue Sarcoma, Recurrent WHO Grade 2 Glioma, Refractory Ependymoma, Refractory Ewing Sarcoma, Refractory Hepatoblastoma, Refractory Histiocytic and Dendritic Cell Neoplasm, Refractory Langerhans Cell Histiocytosis, Refractory Lymphoma, Refractory Malignant Germ Cell Tumor, Refractory Malignant Glioma, Refractory Malignant Solid Neoplasm, Refractory Medulloblastoma, Refractory Neuroblastoma, Refractory Non-Hodgkin Lymphoma, Refractory Osteosarcoma, Refractory Peripheral Primitive Neuroectodermal Tumor, Refractory Rhabdoid Tumor, Refractory Rhabdomyosarcoma, Refractory Soft Tissue Sarcoma, Refractory WHO Grade 2 Glioma, Wilms Tumor

In brief

This phase II pediatric MATCH treatment trial studies how well selpercatinib works in treating patients with solid tumors that may have spread from where they first started to nearby tissue, lymph nodes, or distant parts of the body (advanced), lymphomas, or histiocytic disorders that have activating RET gene alterations. Selpercatinib may block the growth of cancer cells that have specific genetic changes in an important signaling pathway (called the RET pathway) and may reduce tumor size.

Key facts

Study ID

NCT04320888

Run by

National Cancer Institute (NCI)

People needed

1

Starts

2021-05-03

Expected to finish

2027-06-30

Last updated by the study team

2026-08-03

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 and must have been given a treatment assignment to MATCH to APEC1621N based on the presence of an actionable mutation
• Patients must be >= 12 months and =< 21 years of age 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 MRI or 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 cerebral spinal 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
• 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 relatively 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 [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 due to risks of fetal and teratogenic adverse events as seen in animal/human studies. 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 (2) highly effective contraceptive method for the duration of study treatment and for at least 2 weeks after the last dose of selpercatinib (LOXO-292). Male study participants are to refrain from sperm donation during treatment and for 2 weeks after the last dose of selpercatinib (LOXO-292)
• 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 moderate or 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. Note: CYP3A4 inducing anti-epileptic drugs and dexamethasone for CNS tumors or metastases, on a stable dose, are allowed
• Proton pump inhibitors (PPIs), H2 receptor antagonists and antacids: Concomitant use of PPIs during selpercatinib (LOXO-292) therapy should be avoided if feasible. If co-administration of selpercatinib and PPI is necessary, administer selpercatinib with a meal. If H2 receptor antagonist is necessary, administer selpercatinib 2 hours before or 10 hours after H2 receptor antagonist administration. If antacid use is necessary, administer selpercatinib 2 or more hours before or 2 or more hours after antacid administration
• Patients who have major surgery within 14 days prior to cycle 1 day 1 (C1D1) are not eligible. (Central line placement or subcutaneous port placement is not considered major surgery)
• Patients with known clinically significant active malabsorption syndrome or other condition likely to affect gastrointestinal absorption of selpercatinib (LOXO-292) are excluded
• Patients with known hypersensitivity to any of the components of the investigational agent, LOXO 292 are excluded
• Patients with uncontrolled hypertension are excluded
• Patients with uncontrolled symptomatic hyperthyroidism and hypothyroidism (i.e. the patient required a modification to current thyroid medication in 7 days prior to enrollment) are excluded
• Patients with uncontrolled symptomatic hypercalcemia and hypocalcemia are excluded
• 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

Where it is running

• Providence Alaska Medical Center — Anchorage, Alaska, United States
• Banner Children's at Desert — Mesa, Arizona, United States
• Phoenix Childrens Hospital — Phoenix, 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
• Cedars-Sinai Medical Center — 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
• Children's Hospital of Orange County — Orange, California, United States
• Lucile Packard Children's Hospital Stanford University — Palo Alto, California, United States
• University of California Davis Comprehensive Cancer Center — Sacramento, California, United States
• Rady Children's Hospital - San Diego — San Diego, California, United States
• Naval Medical Center -San Diego — San Diego, California, United States
• UCSF Medical Center-Mission Bay — San Francisco, California, United States
• Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center — Torrance, 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
• Children's Hospital of Alabama — Birmingham, Alabama, United States

Full record on ClinicalTrials.gov

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