The invention relates to the field of
medical treatment, and discloses a method for detecting whether
lenalidomide of a patient with
multiple myeloma is effective or not. The method comprises the following steps: treating in-vitro
bone marrow mononuclear cells of a subject by using
lenalidomide, and respectively detecting the proportion of CD138 + cells and the IKZF1 / 3 expression quantity in cells of a
lenalidomide treatment group and an untreated group. The method objectively reflects whether relapse and progression MM patients are resistant to the lenalidomide, if the patients are resistant to the lenalidomide, the patients are replaced with substituted
chemotherapeutic drugs such as the lenalidomide and
pomalidomide, and if the patients are not resistant to the lenalidomide, the patients are replaced with other
chemotherapeutic drugs in the scheme. A theoretical basis is provided for replacing
chemotherapeutic drugs for the MM patient, clinical medication is guided, invalid treatment is avoided through precise treatment, and the economic burden of the patient is relieved.