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Molecular Profile Detail

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Profile Name RET D898_E901del
Gene Variant Detail

RET D898_E901del (gain of function)

Relevant Treatment Approaches RET Inhibitor

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Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
RET D898_E901del Advanced Solid Tumor sensitive RET Inhibitor Selpercatinib Preclinical - Cell culture Actionable In a preclinical study, Retevmo (selpercatinib) inhibited Erk phosphorylation and growth of transformed cells expressing RET D898_E901del in culture (PMID: 32284345). 32284345
RET D898_E901del Advanced Solid Tumor sensitive RET Inhibitor Pralsetinib Preclinical - Cell culture Actionable In a preclinical study, Gavreto (pralsetinib) inhibited Erk phosphorylation and growth of transformed cells expressing RET D898_E901del in culture (PMID: 32284345). 32284345
RET D898_E901del medullary thyroid carcinoma predicted - resistant RET Inhibitor Vandetanib Case Reports/Case Series Actionable In a clinical case study, a patient with metastatic medullary thyroid carcinoma harboring RET D898_E901del demonstrated primary resistance to Caprelsa (vandetanib) treatment (PMID: 37535881). 37535881
RET D898_E901del medullary thyroid carcinoma predicted - sensitive RET Inhibitor Selpercatinib Case Reports/Case Series Actionable In a clinical case study, Retevmo (selpercatinib) treatment resulted in a 61% reduction in the sum of the diameters of the target lesions in a patient with metastatic medullary thyroid carcinoma harboring RET D898_E901del, with treatment lasting 1 year (PMID: 37535881). 37535881
RET D898_E901del Advanced Solid Tumor sensitive RET Inhibitor Selpercatinib Preclinical - Cell culture Actionable In a preclinical study, Retevmo (selpercatinib) inhibited Ret phosphorylation and proliferation in a transformed cell line expressing RET D898_E901del in culture (PMID: 37535881). 37535881
RET D898_E901del Advanced Solid Tumor resistant RET Inhibitor Cabozantinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing RET D898_E901del were resistant to Cometriq (Cabometyx, cabozantinib) in culture (PMID: 37535881). 37535881
RET D898_E901del Advanced Solid Tumor predicted - sensitive RET Inhibitor Vandetanib Preclinical - Cell culture Actionable In a preclinical study, Caprelsa (vandetanib) inhibited Ret phosphorylation and proliferation in a transformed cell line expressing RET D898_E901del, but to a lesser degree than cells expressing RET C634R in culture (PMID: 37535881). 37535881
RET D898_E901del medullary thyroid carcinoma predicted - sensitive RET Inhibitor Selpercatinib Case Reports/Case Series Actionable In a Phase I/II trial (LIBRETTO-001), Retevmo (selpercatinib) treatment resulted in a clinical response after one month, with a partial response in liver lesions and abdominal lymph nodes that was maintained for 24 months, in a patient with metastatic medullary thyroid carcinoma harboring RET D898_E901del (PMID: 38438731; NCT03157128). 38438731