Journals / Uluslararası Hematoloji-Onkoloji Dergisi / 2019 / Cilt: 29 - Sayı: 3

Do Patient Characteristics And Duration of Response to Hormonal Therapy Predict Outcomes of Post-Docetaxel Abirateron Acetate Treatment in Prostate Cancer?

Prostat Kanserinde Hasta Özellikleri Ve Hormonal Tedaviye Yanıtın Süresi, Docetaksel Sonrası Abirateron Tedavisinin Sonuçlarını Öngörüyor mu?

Pages
139–146
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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

In the light of these findings, we may recommend the administration of the AndrogenReceptor (AR)-targeted treatment option in patients with low PSA levels at the time of diagnosis and patients with long castrationduration after chemotherapy.

📌 3 Key Takeaways

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Objective & Hypothesis:A portion of castration-resistant prostate cancer patients are given abiraterone acetate treatment after docetaxel chemotherapy.In this study, we analyzed the association of patient characteristics and time to castration-resistant prostate cancer (TTCRPC)with secondary hormonal treatment-related progression-free survival.
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Key Findings & Data:Data of patients whom were treated with Abiraterone Acetate (AA) for metastatic castration-resistant prostate cancer (mCRPC) in two different oncology centers between 2010 and2018 were analyzed retrospectively.
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Conclusion & Impact:In the light of these findings, we may recommend the administration of the AndrogenReceptor (AR)-targeted treatment option in patients with low PSA levels at the time of diagnosis and patients with long castrationduration after chemotherapy.
🔬Design:Research Article
📍Scope:2010 Verileri
⚙️Variables:Domain Parameters

Abstract

A portion of castration-resistant prostate cancer patients are given abiraterone acetate treatment after docetaxel chemotherapy.In this study, we analyzed the association of patient characteristics and time to castration-resistant prostate cancer (TTCRPC)with secondary hormonal treatment-related progression-free survival. Data of patients whom were treated with Abiraterone Acetate (AA) for metastatic castration-resistant prostate cancer (mCRPC) in two different oncology centers between 2010 and2018 were analyzed retrospectively. The entire patient group consisted of 76 patients however 13 of them were excluded due toincomplete data. Comparative results were obtained in 63 patients. Mean duration of primary hormonal therapy was 20 months.Docetaxel chemotherapy was administered as 7 cycles and mean duration of remission was 9 months. Mean progression-freesurvival post-AA treatment was calculated as 27 months. In univariate analysis, prostate specific antigen (PSA) level lower thanmedian PSA at the time of initial diagnosis and a total Gleason score of below 8 was significantly consistent with prolongedprogression-free survival (PFS). In multivariete analysis, it was observed that only PSA level at the time of initial diagnosis affected the PFS. Progression-free survival after Abiraterone Acetate treatment in patients with previous hormonal therapy durationlonger than 18 months was better than the survival in the patient group who had a shorter hormonal therapy duration. The formergroup experienced a 39% risk reduction. In the light of these findings, we may recommend the administration of the AndrogenReceptor (AR)-targeted treatment option in patients with low PSA levels at the time of diagnosis and patients with long castrationduration after chemotherapy.

Özet

Kastrasyona dirençli prostat kanseri tedavisinde dosetaxel sonrası abirateron asetat uygulanan hastalarda hasta karakteristikleri ve kastrasyon direnci zamanı (time to castration resistan prostate cancer-TTCRPC) ile ikincil hormonal tedaviye bağlı progresyonsuz sağkalım arasındaki ilişkiyi belirlemek için bu çalışma planlandı. 2010 ve 2018 yılları arasında Ankara’da iki Onkoloji merkezinde metastatik kastrasyon rezistan prostat kanseri (mCRPC) tedavisi sonrası Abirateron Asetat (AA) ile tedavi edilen hastaların verileri retrospektif olarak analiz edildi. Sonuçları değerlendirilen 76 hastaya hastane etik kurul onayı alındı. Hastaların 63’ünde karşılaştırmalı sonuçlar elde edildi. Ortalama Androjen Deprivasyon Süresi (ADT) 20 aydı. Dosetaksel kemoterapisi ortalama 7 kür uygulandı ve 9 aylık ortalama remisyon süresi görüldü. Abirateron Asetat sonrası ortalama progresyonsuz sağkalım 27 ay olarak hesaplandı. Tek değişkenli analizde, hastanın tanı anındaki PSA değerinin ortalama değerden düşük olması ve 8’in altındaki Gleason skoru uzamış progresyonsuz sağkalım ile anlamlı olarak uyumlu olarak bulundu. Çok değişkenli analizde ise, yalnızca PSA’nın tanı anındaki değerinin progresyonsuz sağkalımı etkilediği gözlendi. Önceki hormon tedavisi 18 aydan uzun olan hastalardaki AA sonrası progresyonsuz sağkalım süresi belirgin olarak iyi gözlendi ve %39 oranında risk azalması saptandı. Bu bulgular ışığında, tanı anında PSA değeri düşük olan ve uzun kastrasyon direnci zamanı olan hastalara kemoterapiden sonra progresyon olduğunda, Androjen Reseptörü (AR) ekseni hedefli tedavi seçeneğinin uygulanmasını önerebiliriz.

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Cite This Article

OZDEMIR, N. Y., IMAMOGLU, G. I., EREN, T., KARACIN, C., ÇİMEN, S., CILBIR, E., YAZILITAS, D. (2022). Do Patient Characteristics And Duration of Response to Hormonal Therapy Predict Outcomes of Post-Docetaxel Abirateron Acetate Treatment in Prostate Cancer?. Uluslararası Hematoloji-Onkoloji Dergisi, Cilt: 29 - Sayı: 3, 139–146. https://ajindex.com/articles/644774

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