Clinical Research of Pomalidomide Maintenance Therapy for Primary Multiple Myeloma

  • End date
    May 30, 2025
  • participants needed
  • sponsor
    LanZhou University
Updated on 23 July 2022
cell transplantation


The trial is a single-center, single-arm, prospective clinical study with a planned enrollment of 15 patients with primary Multiple myeloma(MM), aiming to investigate the efficacy and safety of maintenance therapy with Pomalidomide in patients with primary MM. Patients enrolled were divided into two categories: 1) patients suitable for Autologous Hematopoietic Stem Cell Transplantation(ASCT) started pomalidomide maintenance therapy 3 months after ASCT; 2) patients not suitable for ASCT started pomalidomide maintenance therapy after induction and consolidation therapy to achieve maximum efficacy. Dosing on days 1-21, 2 mg daily for 28 days as a cycle, for a total duration of 36 months or the onset of disease progression, intolerable adverse events. 2-year progression-free survival (2y-PFS) was used as the primary study endpoint, 2-year overall survival (2y-OS), complete remission rate (CR), very good partial remission rate (VGPR), and negative rate of minimal residual disease(MRD) were secondary study endpoints, and the incidence of adverse events (AEs) was assessed.


Maintenance regimens based on thalidomide and lenalidomide have been shown in numerous clinical trials to significantly improve PFS in patients, but the use of thalidomide is limited by adverse effects such as peripheral neurotoxicity and post-relapse drug resistance. Pomalidomide is a third-generation immunomodulator with a similar structure to thalidomide and lenalidomide, but with stronger anti-MM activity and a similar safety profile. The known mechanisms of action include (1) immunomodulatory effects (2) direct antitumor effects (3) anti-angiogenic activity. (4) Effects on the bone marrow microenvironment. The most common toxicities of pomalidomide include bone marrow suppression, skin reactions, gastrointestinal reactions, and infections, etc. Peripheral neuropathy is less common than thalidomide, and the incidence of thromboembolism is <5%. Pomalidomide is currently used mainly in the treatment of relapsed refractory adult MM, and exploration in post-ASCT maintenance therapy is currently ongoing (NCT01745588). Several retrospective analyses suggest that low-dose pomalidomide may have potential in the maintenance treatment of patients with MM. Therefore, investigators developed a maintenance regimen of low-dose pomalidomide to assess the value of maintenance therapy in MM patients who underwent ASCT or who were not suitable for ASCT. Such regimens may reduce drug toxicity and provide greater clinical benefit for patients with MM.

Condition Multiple Myeloma
Treatment Pomalidomide
Clinical Study IdentifierNCT05378971
SponsorLanZhou University
Last Modified on23 July 2022


Yes No Not Sure

Inclusion Criteria

Subject diagnosed as initially diagnosed with symptomatic MM by the diagnostic criteria of International Myeloma Working Group(IMWG), aged ≥ 18 years
Subject undergoing ASCT who have had prior induction therapy for no more than 12 months and whose disease has not progressed within 3 months of ASCT
Subject who are not candidates for ASCT have reached maximum efficacy after induction and consolidation therapy
Eastern Cooperative Oncology Group (ECOG) physical status score of 0-3
Serum transaminase levels less than three times the upper limit of normal, serum total bilirubin levels not exceeding 35 umol/L, serum creatinine levels less than 177 umol/L, absolute neutrophil values greater than 1.0 x 10^9/L, and platelet counts greater than 75 x 10^9/L
Subject of childbearing potential must use two reliable methods of contraception simultaneously or have absolutely no sexual relations with the opposite sex for 4 weeks prior to initiation of treatment, during treatment, during suspension of dosing and for 4 weeks after termination of treatment, and women of childbearing potential agree to perform monthly pregnancy tests until 4 weeks after discontinuation of study drug
Subject voluntarily enrolled in this study and signed an informed consent form

Exclusion Criteria

Subject has 17p-, 1q21 amplification, t(4;14), t(14;16), t(14;20), t(11;14), and p53 mutation
Subject who, in the judgment of the investigator, cannot tolerate pomalidomide treatment or are allergic to lenalidomide or thalidomide drugs
Subject with a diagnosis of nonsecretory MM (meaning subjects with completely nonsecretory MM or subjects with a small amount of free light chain but with less than 100 mg/L of affected light chain)
with central nervous system involvement
subject with peripheral neuropathy ≥ grade 3
subject with known active hepatitis B virus (HBV-DNA ≥ l × 103 copies/mL or HBV-DNA > 200 IU/mL) or hepatitis C virus (HCV), or serologically positive for human immunodeficiency virus (HIV)
Subject with concurrent other neoplasms or a prior history of neoplasms or antineoplastic therapy (including major surgery) within the last 4 weeks, except for the following neoplastic diseases or those who have lived tumor-free for ≥ 3 years to date: basal cell carcinoma of the skin, squamous epithelial cell carcinoma of the skin, carcinoma in situ of the cervix, carcinoma in situ of the breast, incidental histologic findings of prostate cancer (TNM clinical stage of T1a or T1b) or treated prostate cancer
Subject with coexisting serious infectious disease
Subject who refuse to use a reliable form of contraception during pregnancy and lactation or at an appropriate age
Subject with active new thrombosis or unwilling to undergo antithrombotic therapy
Subject who, in the opinion of the investigator, are not suitable for enrollment
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