Autologous Stem Cell Transplantation in Multiple Myeloma Patients Over 60 Years Old

Bahar Uncu Ulu, Tuğçe Nur Yiğenoğlu, Semih Başcı, Mehmet Bakırtaş, Derya Şahin, Tahir Darçın, Jale Yıldız, Alparslan Merdin, Nuran Ahu Baysal, Dicle İskender, Mehmet Sinan Dal, Merih Kızıl Çakar, Fevzi Altuntaş


The incidence of Multiple myeloma (MM) increases with age; two-thirds of the patients are older than 65 years. Induction treatment, including new agents such as thalidomide, bortezomib, and lenalidomide followed by a conditioning regimen and upfront autologous stem cell transplantation (ASCT), has been accepted the standard treatment approach for newly diagnosed fit MM patients. We aimed to search the real-life data, the efficacy and safety of upfront ASCT following induction in patients with MM over 60 years old retrospectively. The data of MM patients who were ≥60 years old during autologous stem cell transplantation and treated at our center between 2010 and 2018 retrospectively analyzed. The study results were 63 patients included at the age of ≥ 60 years who underwent upfront ASCT. Median PFS was 15.5±2.6 months, and the median overall survival (OS) was 28.15±5 months. According to age groups, median PFS was 12±2.3 months in the 60-64 age group, 18.4±6 months in the 65-69 age group, and 26±15 months in the ≥70 age group. Median OS was 26.5±6.1 months in the 60-64 age group, 39.66±8.9 months in the 65-69 age group, and 18 months in the ≥70 age group. A significant relationship between the quantity of infused CD34+ stem cells and PFS and OS (p:0.05 and p<0.00, respectively). Our study indicated that a high dose (200 mg/m2 ) melphalan could safely be used in the physically fit patients at the ages of 60-69, and a reduced amount (140 mg/m2 ) would be the appropriate dose for the patients over 70. The quantity of infused CD34+ stem cells affect elderly MM patients; mobilization dynamics are also important factors for elderly myeloma. Age itself should not consider a barrier to ASCT, and a comprehensive geriatric evaluation should perform on elderly patients


Autologous stem cell transplantation; elderly; multiple myeloma; upfront; 60 years old

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