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Term · Clinical

Conditioning

Chemotherapy or antibody treatment given before a cell therapy to clear space in the bone marrow so edited cells can engraft. It is the source of most of the risk in ex vivo therapies.

Written by The CRISPR Atlas editorial team Last updated Aug 19, 2026
Educational information only This page is a reference, not medical advice. Research and regulatory status change; check the last-updated date above and confirm anything important against the primary sources listed.