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. 2022 Oct;62(10):1967-1972.
doi: 10.1111/trf.17090. Epub 2022 Sep 2.

Non-cryopreserved peripheral blood stem cells as a safe and effective alternative for autologous transplantation in multiple myeloma

Anelise Bergmann Araújo  1 , Tahiane Brum Soares  2 , Tissiana Schmalfuss  1 , Melissa Helena Angeli  1 , Juliana Monteiro Furlan  1 , Gabrielle Dias Salton  1 , Mariana Monteiro Burin  2 , Liane Marise Röhsig  1
Affiliations

Non-cryopreserved peripheral blood stem cells as a safe and effective alternative for autologous transplantation in multiple myeloma

Anelise Bergmann Araújo et al. Transfusion. 2022 Oct.

Abstract

Background: Autologous stem cell transplantation is the standard procedure for multiple myeloma and the grafts are usually cryopreserved. Previous studies reported advantages in the use of fresh peripheral blood stem cells (PBSC) autotransplantation compared to cryopreservation of the grafts. This study compared the transplant-related outcomes of two graft preservation methods: fresh storage (4°C/72 h) and cryopreservation (-80°C).

Study design and methods: We performed an analysis of 45 patients with multiple myeloma under autotransplantation (17 fresh and 28 cryopreserved) from 2017 to 2021. Fresh PBSC were maintained in the refrigerator for three days in a concentration up to 300 × 103 TNC/μL. Cryopreserved PBSC were concentrated by plasma reduction after centrifugation (950 g/10 min/4°C) and an equal volume of cryoprotection solution was added for a final concentration of 300 × 103 TNC/μL, 5% DMSO, 6% hydroxyethyl starch, and 3% human albumin.

Results: Neutrophil engraftment was significantly faster with fresh PBSCs (10 vs. 11.5 days, p = 0.045). Adverse effects were more common in cryopreserved PBSC transplantation (75% vs. 35.3% patients; p = 0.013). Post transplantation hospital stay was 20 and 22 days for fresh and cryopreserved PBSCs respectively (p = 0.091). There was no difference in platelet engraftment time (10.5 days for both; p = 0.133), number of antibiotics used after transplantation (3 for fresh and 2.5 for cryopreserved; p = 0.828), days of antibiotic use after transplantation (12.2 days for fresh and 13.3 days for cryopreserved, p = 0.579), and overall survival (p = 0.736).

Conclusion: The infusion of fresh PBSC refrigerated for up to three days is effective and safe for autologous transplantation in patients with multiple myeloma, which is a useful alternative to cryopreserved PBSC.

Keywords: autologous transplantation; fresh PBSC; hematopoietic progenitor cells; marrow transplantation; multiple myeloma; peripheral blood stem cells.

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References

REFERENCES

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