Protein Chemical FormulaC97H144FN33O19S2
Protein Average Weight2159.6 Da
>Motixafortide sequence RRXCYXKKPYRXCR
Motixafortide is a peptide inhibitor of CXCR4 used to mobilize hematopoietic stem cells prior to collection and autologous transplantation in multiple myeloma patients.
To use with filgrastim (G-CSF) to mobilize hematopoietic stem cells to the peripheral blood for collection and subsequent autologous transplantation in patients with multiple myeloma
Motixafortide, sold under the brand name Aphexda, is a medication used for the treatment of multiple myeloma. Motixafortide is a hematopoietic stem cell mobilizer and a CXCR4 antagonist. It is given by subcutaneous injection.
Motixafortide is a cyclic peptide hematopoietic stem cell mobilizer used to improve stem cell collection prior to autologous transplantation.3 Hematopoietic stem cell transplantation (HSCT) is commonly employed in the context of hematologic cancers – high-dose chemotherapy regimens destroy cancerous blood cells, which are then replaced via infusion of the patient’s own stem cells (i.e. an autologous transplant).4 Similar in mechanism to the previously approved plerixafor, motixafortide is an inhibitor of C-X-C Motif Chemokine Receptor 4 (CXCR4), a protein that helps to anchor stem cells to bone marrow matrix.3 When administered alongside filgrastim, another agent used to aid in stem cell collection, motixafortide enabled the collection of an adequate number of stem cells in ~92% of patients within two apheresis procedures, compared to ~26% of patients receiving only filgrastim.1
Motixafortide was approved by the FDA in September 2023, in combination with filgrastim, for use in stem cell mobilization prior to autologous stem cell transplant in patients with multiple myeloma.5 It has also been investigated alongside pembrolizumab for the treatment of pancreatic cancer.2
Motixafortide is indicated in combination with filgrastim, a granulocyte-colony stimulating factor (G-CSF), to mobilize hematopoietic stem cells to the peripheral blood for collection and subsequent autologous transplantation in people with multiple myeloma.
Society and culture
|Chemical and physical data|
|Molar mass||2159.55 g·mol−1|
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- “Aphexda- motixafortide injection, powder, lyophilized, for solution”. DailyMed. 4 September 2023. Archived from the original on 14 September 2023. Retrieved 13 September 2023.
- “Aphexda approval letter” (PDF). 8 September 2023. Archived from the original (PDF) on 14 September 2023. This article incorporates text from this source, which is in the public domain.
- “BioLineRx Announces FDA Approval of Aphexda (motixafortide) in Combination with Filgrastim (G-CSF) to Mobilize Hematopoietic Stem Cells for Collection and Subsequent Autologous Transplantation in Patients with Multiple Myeloma” (Press release). BioLineRx Ltd. 11 September 2023. Retrieved 13 September 2023 – via PR Newswire.
- World Health Organization (2019). “International nonproprietary names for pharmaceutical substances (INN): recommended INN: list 82”. WHO Drug Information. 33 (3). hdl:10665/330879.
- Crees ZD, Rettig MP, Jayasinghe RG, Stockerl-Goldstein K, Larson SM, Arpad I, et al. (April 2023). “Motixafortide and G-CSF to mobilize hematopoietic stem cells for autologous transplantation in multiple myeloma: a randomized phase 3 trial”. Nature Medicine. 29 (4): 869–879. doi:10.1038/s41591-023-02273-z. PMC 10115633. PMID 37069359.</ref>
- Clinical trial number NCT03246529 for “A Phase III, Safety, Tolerability and Efficacy of Combination Treatment of BL-8040 and G-GSF as Compared to Placebo and G-CSF for thE MobilizatioN of HematopoiEtic Stem Cells for Autologous TransplantatIon in SubjectS With MM (GENESIS)” at ClinicalTrials.gov
/////fda 2023, approvals 2023, Motixafortide, 4F-benzoyl-TN-14003, BKT-140, BKT140, BL 8040, Aphexda, мотиксафортид, موتيكسافورتيد , 莫替福肽 ,