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flag FDA-approved drugs bupivacaine and rimegepant slowed bone cancer growth in mice by blocking pain and tumor-supporting proteins, showing promise for human treatment.

flag A Johns Hopkins-led study found that two FDA-approved drugs—bupivacaine and rimegepant—can slow bone cancer (osteosarcoma) growth in mice by blocking nerve signaling proteins CGRP, TrkA, and NGF, which support tumor progression and pain. flag The drugs reduced nerve and blood vessel formation in tumors, extended survival, and decreased immune-evading cells. flag Human tumor samples showed similar protein activity, suggesting potential for repurposing these drugs to treat osteosarcoma and relieve pain, though further clinical trials are needed.

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