External beam radiotherapy for clinically node-negative, localized hormone-refractory prostate cancer: impact of pretreatment PSA value on radiotherapeutic outcomes

Akimoto, Tetsuo; Kitamoto, Yoshizumi; Saito, Junichi; Harashima, Koichi; Nakano, Takashi; Ito, Kazuto; Yamamoto, Takumi; Kurokawa, K; Yamanaka, Hidetoshi; Takahashi, Mitsuhiro; Mitsuhashi, Norio; Niibe, Hideo

doi:10.1016/j.ijrobp.2003.10.033

Cited by 25 publications

(16 citation statements)

References 31 publications

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“…Several reports have also indicated that radical radiotherapy had an excellent local control rate for these tumors (20,32 Abbreviations as in Table 3. Values in parentheses are percentages.…”

Section: Discussionmentioning

confidence: 99%

External Beam Radiotherapy for Clinically Localized Hormone-Refractory Prostate Cancer: Clinical Significance of Nadir Prostate-Specific Antigen Value Within 12 Months

Ogawa

Nakamura

Sasaki³

et al. 2009

International Journal of Radiation Oncology*Biology*Physics

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Section: Discussionmentioning

confidence: 99%

External Beam Radiotherapy for Clinically Localized Hormone-Refractory Prostate Cancer: Clinical Significance of Nadir Prostate-Specific Antigen Value Within 12 Months

Ogawa

Nakamura

Sasaki³

et al. 2009

International Journal of Radiation Oncology*Biology*Physics

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“…In an earlier Japanese report containing data from 61 patients (14), the 5-year PFS rate was 43.5%. Another study from Japan (11) presented results from 53 patients: The 3-year clinical relapse- free survival rate was 78%, and 15 patients developed clinical metastases during a median follow-up of 35 months (11). An Italian study published at the same time reported the data from 29 patients, 24 (83%) of whom had developed biochemical failure after a median of 9.2 months from EBRT (13).…”

Section: Discussionmentioning

confidence: 99%

“…No consensus on the treatment of nonmetastasized castration-resistant prostate cancer has yet been reached. Few published studies have evaluated RT for castration-resistant prostate cancer (9)(10)(11)(12)(13)(14)(15)(16). The aim of the present study was to evaluate the outcome of RT among patients who underwent androgen-deprivation therapy as a primary therapy for non-metastatic prostate cancer with progression to castration-resistant disease at our institution between 2000 and 2010.…”

Section: Introductionmentioning

confidence: 99%

External beam radiation for the treatment of castration-resistant prostate cancer following primary hormonal therapy with androgen ablation: Analysis and outcome of 21 patients

Kuusk

Pulliainen

Vaarala

2017

Molecular and Clinical Oncology

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Abstract.Patients who undergo early androgen-deprivation therapy for prostate cancer may eventually develop castrationresistant prostate cancer. However, no optimal treatment for non-metastasized castration-resistant prostate cancer has yet been established. In the present retrospective, singleinstitutional study, the radiotherapy (RT) outcomes were evaluated in patients who underwent androgen-deprivation therapy for non-metastatic prostate cancer and subsequently developed castration-resistant disease. Following a thorough chart review, the data of 21 patients with castration-resistant prostate cancer who were treated between 2000 and 2010 with external beam radiation therapy (EBRT) at a prostate radiation dose of >45 Gy were evaluated. Of the 21 patients, 16 (76%) developed biochemical recurrence after RT, with a mean time to biochemical recurrence of 17 months. A total of 18 patients succumbed to the disease during follow-up, with a mean survival of 3 years after RT. A radiation dose of >66 Gy was associated with a longer time to biochemical recurrence after RT (P=0.011) and a longer survival, compared with a dose of ≤66 Gy (P= 0.028). The mean overall survival time after RT was 42 months and did not depend on the primary hormonal treatment. Prostate-specific survival time was negatively associated with the Gleason score at diagnosis. The prostate-specific antigen (PSA) concentration prior to RT was a prognostic factor for biochemical recurrence of prostate cancer after RT, as well as for prostate cancer-specific survival. Finally, the multivariate analysis revealed that age, PSA concentration prior to RT and a high Gleason score were independent prognostic factors for prostate cancer-specific survival. Overall, our study findings demonstrated that disease progression was common after EBRT for castration-resistant prostate cancer and that survival was limited. However, young patients and those with low-risk disease at the time of diagnosis may benefit from RT. IntroductionProstate cancer is the most common cancer among European men, comprising 12% of all new cancer cases and 5% of all cancer deaths in 2012 (1). There is no evidence that one radical treatment for localized disease is more effective compared with another (2). In a recently published randomized trial, it was demonstrated that radical prostatectomy and radiotherapy (RT) achieved comparable disease control after a 10-year follow-up (3). External beam radiation therapy (EBRT) is a treatment option available at different stages of non-metastatic prostate cancer (4). Androgen-deprivation therapy has also been used as primary treatment for localized prostate cancer (5), leading to apoptotic regression of androgen-dependent tumors. Possible androgen-deprivation therapy regimens include orchiectomy, gonadotropin hormone-releasing hormone (GnRH) agonists, GnRH antagonists and androgen receptor antagonists (6). Use of early androgen-deprivation therapy for prostate cancer may lead to the development of castration-resistant prostate cancer. The median time...

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“…Stråleterapi kan gi god lokal tumorkontroll også ved hormonrefraktaer prostatakreft (Akimoto et al, 2004,Lankford et al, 1995. Sjansen for tumorrespons er større ved lavere tumorvolum.…”

Section: Stråleterapiunclassified

Re: Ulike retningslinjer for behandling av prostatakreft

Solberg¹,

Angelsen²,

Berge³

et al. 2015

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External beam radiotherapy for clinically node-negative, localized hormone-refractory prostate cancer: impact of pretreatment PSA value on radiotherapeutic outcomes

Cited by 25 publications

References 31 publications

External Beam Radiotherapy for Clinically Localized Hormone-Refractory Prostate Cancer: Clinical Significance of Nadir Prostate-Specific Antigen Value Within 12 Months

External Beam Radiotherapy for Clinically Localized Hormone-Refractory Prostate Cancer: Clinical Significance of Nadir Prostate-Specific Antigen Value Within 12 Months

External beam radiation for the treatment of castration-resistant prostate cancer following primary hormonal therapy with androgen ablation: Analysis and outcome of 21 patients

Re: Ulike retningslinjer for behandling av prostatakreft

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