Journals / Uluslararası Hematoloji-Onkoloji Dergisi / 2013 / Cilt: 23 - Sayı: 3

CD34 Pozitif Periferik Kök Hücre Toplama Başarısında Standart ve Salvaj Kemoterapi Rejimlerinin Karşılaştırılması

The Comparison of Standard and Salvage Chemotherapy Regimens Regarding to CD34(+) Peripheric Stem Cell Harvesting Success

Pages
184–192
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Finally, the number of standard CT cycles before mobilization were found to have a borderline negative effect on the harvested CD34+ cells.

📌 3 Key Takeaways

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Objective & Hypothesis:Although regimens of harvesting peripheric stem cell vary from one center to another, the most common ones are chemotherapy plus growth factor or growth factor alone.
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Key Findings & Data:We aimed to determine which variables of harvesting peripheral stem cells are effective on the number of harvested CD34+ cells and successfull mobilisation defined as “the collection of >2.0 x 106 CD34+ cells/kg b.w. with a maximum of three leukaphereres”.
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Conclusion & Impact:Finally, the number of standard CT cycles before mobilization were found to have a borderline negative effect on the harvested CD34+ cells.
🔬Design:Research Article
📍Scope:2008 Verileri
⚙️Variables:Domain Parameters

Abstract

Although regimens of harvesting peripheric stem cell vary from one center to another, the most common ones are chemotherapy plus growth factor or growth factor alone. We aimed to determine which variables of harvesting peripheral stem cells are effective on the number of harvested CD34+ cells and successfull mobilisation defined as “the collection of >2.0 x 106 CD34+ cells/kg b.w. with a maximum of three leukaphereres”. From August 2008 to January 2011, the documents of 56 patients included in the autologous peripheral stem cell harvesting program were retrieved retrospectively. Regarding harvesting regimens, 28 patients (50.0%) were administered filgrastim 10 µg/kg/day (filgrastim group), 18 patients (32.1%) were administered a standard regime with ifosphamide + etoposide + epirubicin + filgrastim 5 µg/kg/day or cyclophosphamide + etoposide + filgrastim 5 µg/kg/day (standard group), and 10 patients (17.9%) were administered a salvage regime + filgrastim 5 µg/kg/day (salvage group). Rituximab was added if the disease was CD20 positive. The median number of CD34+ cells and the number of inadequate collection did not differ between these 3 groups. Transplantation before mobilization was found to have a negative effect on the harvesting success. The transplantated patients had a lower number of harvested CD34+ cells than the patients without transplantation history. But no clear relationship was seen between harvest success and the diagnosis of the patients, pretransplant response, radiotherapy history before mobilization, or mobilization with a standard regimen. Finally, the number of standard CT cycles before mobilization were found to have a borderline negative effect on the harvested CD34+ cells.

Özet

Periferik kök hücre toplama rejimleri merkezden merkeze değişmekle birlikte, en sık tercih edilen kemoterapi ile birlikte büyüme faktörü (G-CSF, GM-CSF) veya yalnızca büyüme faktörü uygulanmasıdır. CD34+ kök hücreler standart toplama rejimleri ardından toplanabileceği gibi salvaj kemoterapileri takiben de toplanabilir. Çalışmamızda standart toplama ve salvaj kemoterapi protokollerinin mobilizasyon başarısı açısından karşılaştırılması amaçlanmıştır. Ağustos 2008- Ocak 2011 arasında otolog periferik kök hücre toplama programına dahil edilen 56 hastanın dosyaları retrospektif olarak tarandı. Yirmi sekiz hastaya (50.0%) filgrastim 10 µg/kg/gün (1. grupfilgrastim), 18 hastaya (32.1%) ifosfamid + etoposid + epirubisin + filgrastim 5 g/kg/gün veya siklofosfamid + etoposid + 5 µg/kg/gün’den oluşan bir standart toplama protokolü (2. grup-standart), 10 hastaya (17.9%) ise bir salvaj rejim + filgrastim 5 µg/kg/gün (3. grup-salvaj) uygulanmıştı. Mobilize edilen median CD34+ hücre ve yetersiz toplama sayıları her üç grupta da benzerdi. Mobilizasyon öncesi nakil öyküsünün olması, toplama işleminin başarısı üzerinde negatif bir etkiye sahip bulundu. Nakil öyküsü olanlarda, olmayanlara göre toplanan CD34+ hücre sayısı daha düşüktü. Bununla birlikte hastaların tanıları, nakil öncesi hastalık durumları, mobilizasyon öncesi radyoterapi öyküsü gibi parametrelerin toplama işleminin başarısı üzerine etkisi saptanmadı. Çalışmamızda CD34+ hücre mobilizasyonu açısından standart toplama ve salvaj kemoterapi protokolleri arasında fark saptanmamıştır. Standart toplama ve salvaj kemoterapi protokollerinin mobilizasyon başarısı açısından karşılaştırılması için çok sayıda olgu içeren prospektif ve randomize klinik çalışmalara ihtiyaç vardır.

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Cite This Article

BALÇIK, Ö. Ş., AKSOY, C., AKDENİZ, D., AKKAYA, C., GÜVENÇ, B., DİNÇER, S. (2013). CD34 Pozitif Periferik Kök Hücre Toplama Başarısında Standart ve Salvaj Kemoterapi Rejimlerinin Karşılaştırılması. Uluslararası Hematoloji-Onkoloji Dergisi, Cilt: 23 - Sayı: 3, 184–192. https://ajindex.com/articles/322939

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