Trial Outcomes & Findings for Selpercatinib for the Treatment of Advanced Solid Tumors, Lymphomas, or Histiocytic Disorders With Activating RET Gene Alterations, a Pediatric MATCH Treatment Trial (NCT NCT04320888)

NCT ID: NCT04320888

Last Updated: 2025-11-06

Results Overview

A responder is defined as a patient who achieves a best response of partial response or complete response on the study. Response rates will be calculated as the percent of evaluable patients who are responders. The revised Response Evaluation Criteria in Solid Tumors (RECIST) guideline (version 1.1) was used to determine response and progression in this study, with specific criteria outlined for the different subtypes of tumors (e.g., 2-dimensional measurements for central nervous system \[CNS\] tumors).

Recruitment status

ACTIVE_NOT_RECRUITING

Study phase

PHASE2

Target enrollment

1 participants

Primary outcome timeframe

Up to 2 years from study entry

Results posted on

2025-11-06

Participant Flow

Participant milestones

Participant milestones
Measure	Treatment (Selpercatinib) Patients receive selpercatinib PO BID on days 1-28. Treatment repeats every 28 days for up to 26 cycles (2 years) in the absence of disease progression or unacceptable toxicity. Patients may also undergo PET, CT, MRI, PET/CT, PET/MRI, and/or CT/MRI, scintigraphy, and x-ray imaging throughout the trial.
Overall Study STARTED	1
Overall Study COMPLETED	1
Overall Study NOT COMPLETED	0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

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

Baseline characteristics by cohort

Baseline data not reported

PRIMARY outcome

Timeframe: Up to 2 years from study entry

Outcome measures

Outcome measures
Measure	Treatment (Selpercatinib) n=1 Participants Patients receive selpercatinib PO BID on days 1-28. Treatment repeats every 28 days for up to 26 cycles (2 years) in the absence of disease progression or unacceptable toxicity. Patients may also undergo PET, CT, MRI, PET/CT, PET/MRI, and/or CT/MRI, scintigraphy, and x-ray imaging throughout the trial.
Objective Response Rate (Complete Response + Partial Response) in Pediatric Patients Treated With Selpercatinib (LOXO-292)	100 percentage of participants

SECONDARY outcome

Timeframe: Up to 6 months from study entry

The Kaplan-Meier method will be used to estimate the 6 month PFS. PFS is defined as time from initiation of protocol treatment to disease progression, recurrence, death from any cause, or date of last contact.

Outcome measures

Outcome measures
Measure	Treatment (Selpercatinib) n=1 Participants Patients receive selpercatinib PO BID on days 1-28. Treatment repeats every 28 days for up to 26 cycles (2 years) in the absence of disease progression or unacceptable toxicity. Patients may also undergo PET, CT, MRI, PET/CT, PET/MRI, and/or CT/MRI, scintigraphy, and x-ray imaging throughout the trial.
Progression-free Survival (PFS)	100 percentage of participants

SECONDARY outcome

Timeframe: Up to 2 years from study entry

Evaluated by Common Terminology Criteria for Adverse Events version 5. Any eligible patient who receives at least one dose of protocol therapy will be considered in the evaluation of toxicity.

Outcome measures

Outcome measures
Measure	Treatment (Selpercatinib) n=1 Participants Patients receive selpercatinib PO BID on days 1-28. Treatment repeats every 28 days for up to 26 cycles (2 years) in the absence of disease progression or unacceptable toxicity. Patients may also undergo PET, CT, MRI, PET/CT, PET/MRI, and/or CT/MRI, scintigraphy, and x-ray imaging throughout the trial.
Percentage of Patients Experiencing Grade 3 or 4 Adverse Events	0 percentage of participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to time of disease progression or end of protocol therapy

Will explore approaches to the profiling changes in tumor genomics over time through evaluation of circulating tumor deoxyribonucleic acid. A descriptive analysis will be performed and will be summarized with simple summary statistics. All of these analyses will be descriptive in nature.

Outcome measures

Outcome data not reported

Adverse Events

Treatment (Selpercatinib)

Serious events: 0 serious events

Other events: 1 other events

Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure	Treatment (Selpercatinib) n=1 participants at risk Patients receive selpercatinib PO BID on days 1-28. Treatment repeats every 28 days for up to 26 cycles (2 years) in the absence of disease progression or unacceptable toxicity. Patients may also undergo PET, CT, MRI, PET/CT, PET/MRI, and/or CT/MRI, scintigraphy, and x-ray imaging throughout the trial.
Gastrointestinal disorders Abdominal distension	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Gastrointestinal disorders Abdominal pain	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Gastrointestinal disorders Constipation	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Gastrointestinal disorders Diarrhea	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Gastrointestinal disorders Dry mouth	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Gastrointestinal disorders Nausea	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Gastrointestinal disorders Stomach pain	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
General disorders Fatigue	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Infections and infestations Infections and infestations - Other, specify	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Musculoskeletal and connective tissue disorders Back pain	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Musculoskeletal and connective tissue disorders Myalgia	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Musculoskeletal and connective tissue disorders Neck pain	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Nervous system disorders Headache	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Nervous system disorders Somnolence	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.
Respiratory, thoracic and mediastinal disorders Cough	100.0% 1/1 • Up to 2 years from study entry Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. All-Cause Mortality includes all deaths collected on the study. Ineligible patients are excluded from reporting of adverse events.

Additional Information

Results Reporting Coordinator

Children's Oncology Group

Phone: 6262411500

Email: [email protected]

Results disclosure agreements

Principal investigator is a sponsor employee
Publication restrictions are in place

Restriction type: LTE60