Predictors of clinical outcomes in metastatic castration-resistant prostate cancer (mCRPC) patients treated with abiraterone acetate or placebo: An exploratory post-hoc analysis of COU-AA-302 trial data.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e16529-e16529
Author(s):  
Dominic Pilon ◽  
Ajay S. Behl ◽  
Rhiannon Kamstra, ◽  
Yongling Xiao ◽  
Marie-Helene Lafeuille ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Gleason Score ◽  
Group Performance ◽  
Trial Data ◽  
Cox Models ◽  
Post Hoc Analysis ◽  
Opiate Use ◽  
Psa Progression ◽  
Ecog Ps ◽  
Post Hoc

e16529 Background: A post-hoc analysis of COU-AA-302 trial data showed that brief pain inventory (BPI), lactate dehydrogenase (LDH), alkaline phosphatase (ALP), and bone metastases were predictors for overall survival in men with mCRPC treated with AA+P. This study aimed to identify baseline predictors of other clinical outcomes. Methods: COU-AA-302 trial data were used to develop predictive models for prostate-specific antigen (PSA) progression, Eastern Cooperative Oncology Group performance status (ECOG PS) deterioration, and opiate use. Associations between baseline factors and outcomes were first assessed using multivariable Cox models among AA+P patients (Step 1). In Step 2, interaction testing was conducted between treatment (AA+P vs. placebo) and each potential predictor (P < 0.2) identified in Step 1. Final Cox models included predictors and any significant interactions (p < 0.05). Results: A total of 1,034 men (525 AA+P; 509 placebo) were included in the analysis. Baseline BPI, PSA, LDH, and ALP were predictors of PSA progression and opiate use regardless of AA+P or placebo with higher values indicating higher risks (all P < 0.05). Younger age, shorter time from luteinizing hormone-releasing hormone to randomization, higher Gleason score, and lower PSA at diagnosis were also associated with higher risks of opiate use: (all P < 0.05). For ECOG PS deterioration, higher baseline BPI, PSA, LDH, and Gleason score, older age, and lower baseline ECOG were associated with higher risks regardless of AA+P or placebo (all P < 0.05). Baseline ALP and site of metastasis also predicted ECOG PS deterioration but the effect varied by treatment (lower risk in AA+P versus placebo; both interactions’ P < 0.05). Conclusions: Predictors of PSA progression, ECOG PS deterioration, and opiate use were identified in AA+P and placebo-treated men with mCRPC. No predictors were associated with worse outcomes for AA+P versus placebo, while the negative impact of certain predictors on ECOG PS was favorably modified by AA+P. Further study is needed on the relationship between AA+P and prognostic factors.

scholarly journals Pain Progression at Initiation of Cabazitaxel in Metastatic Castration-Resistant Prostate Cancer (mCRPC): A Post Hoc Analysis of the PROSELICA Study

Cancers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1284
Author(s):  
Nicolas Delanoy ◽  
Debbie Robbrecht ◽  
Mario Eisenberger ◽  
Oliver Sartor ◽  
Ronald de Wit ◽  
...  
Keyword(s):  
Progression Free Survival ◽  
Phase Iii ◽  
Castration Resistant Prostate Cancer ◽  
Radiological Progression ◽  
Post Hoc Analysis ◽  
Psa Response ◽  
Phase Iii Study ◽  
Psa Progression ◽  
Previously Treated ◽  
Post Hoc

Background: In the PROSELICA phase III trial (NCT01308580), cabazitaxel 20 mg/m2 (CABA20) was non-inferior to cabazitaxel 25 mg/m2 (CABA25) in mCRPC patients previously treated with docetaxel (DOC). The present post hoc analysis evaluates how the type of progression at randomization affected outcomes. Methods: Progression type at randomization was defined as follows: PSA progression only (PSA-p; no radiological progression (RADIO-p), no pain), RADIO-p (±PSA-p, no pain), or pain progression (PAIN-p, ±PSA-p, ±RADIO-p). Relationships between progression type and overall survival (OS), radiological progression-free survival (rPFS), and PSA response (confirmed PSA decrease ≥ 50%) were analyzed. Results: All randomized patients (n = 1200) had received prior DOC, and 25.7% had received prior abiraterone or enzalutamide. Progression type at randomization was evaluable in 1075 patients (PSA-p = 24.4%, RADIO-p = 20.8%, PAIN-p = 54.8%). Pain progression was associated with clinical and biological features of aggressive disease. Median OS from CABA initiation or date of mCRPC diagnosis, all arms combined, was shorter in the PAIN-p group than in the RADIO-p or the PSA-p groups (12.0 versus 16.8 and 18.4 months, respectively, p < 0.001). In multivariate analysis, all arms combined, PAIN-p was an independent predictor of poor OS (HR = 1.44, p < 0.001). PSA response, rPFS, and OS were numerically higher with CABA25 versus CABA20 in patients with PAIN-p. Conclusions: This post hoc analysis of the PROSELICA phase III study shows that pain progression at initiation of CABA in mCRPC patients previously treated with DOC is associated with a poor prognosis. Disease progression should be carefully monitored, even in the absence of PSA rise.

scholarly journals A prognostic model for stratifying clinical outcomes in chemotherapy-naive metastatic castration-resistant prostate cancer patients treated with abiraterone acetate

2017 ◽  
Vol 12 (2) ◽  
pp. E47-52 ◽  
Author(s):  
Daniel Joseph Khalaf ◽  
Claudia M. Avilés ◽  
Arun A. Azad ◽  
Katherine Sunderland ◽  
Tilman Todenhöfer ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Clinical Outcomes ◽  
Group Performance ◽  
Eastern Cooperative Oncology Group ◽  
Specific Antigen ◽  
Prognostic Index ◽  
Abiraterone Acetate ◽  
Castration Resistant Prostate Cancer ◽  
Castration Resistant ◽  
Psa Progression

Introduction: Recently, a prognostic index including six risk factors (RFs) (unfavourable Eastern Cooperative Oncology Group performance status [ECOG PS], presence of liver metastases, short response to luteinizing hormone-releasing hormone [LHRH] agonists/ antagonists, low albumin, increased alkaline phosphatase [ALP] and lactate dehydrogenase [LDH]) was developed from the COUAA- 301 trial in post-chemotherapy metastatic castration-resistant prostate cancer (mCRPC) patients treated with abiraterone acetate. Our primary objective was to evaluate this model in a cohort of chemotherapy-naive mCRPC patients receiving abiraterone.Methods: We identified 197 chemotherapy-naive patients who received abiraterone at six BC Cancer Agency centres and who had complete information on all six RFs. Study endpoints were prostate-specific antigen (PSA) response rate (RR), time to PSA progression, time on treatment, and overall survival (OS). PSA RR and survival outcomes were compared using Χ2 test and log-rank test. Multivariable Cox proportional hazard analysis was performed to identify RFs independently associated with OS.Results: Patients were classified into good (0‒1 RFs), intermediate (2‒3 RFs), and poor (4‒6 RFs) prognostic groups (33%, 52%, and 15%, respectively). For good-, intermediate-, and poor-risk patients, PSA RR (≥50% decline) was 60% vs. 42% vs. 40% (p=0.05); median time to PSA progression was 7.3 vs. 5.3 vs. 5.0 months (p=0.02); and median OS was 29.4 vs. 13.8 vs. 8.7 months (p<0.0001).Conclusions: The six-factor prognostic index model stratifies clinical outcomes in chemotherapy-naive mCRPC patients treated with abiraterone. Identifying patients at risk of poor outcome is important for informing clinical practice and clinical trial design.

Clinical outcomes of TAVI or SAVR in men and women with aortic stenosis at intermediate operative risk: a post hoc analysis of the randomised SURTAVI trial

2020 ◽  
Vol 16 (10) ◽  
pp. 833-841
Author(s):  
Nicolas M. Van Mieghem ◽  
Michael J. Reardon ◽  
Steven J. Yakubov ◽  
John Heiser ◽  
William Merhi ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
Clinical Outcomes ◽  
Operative Risk ◽  
Men And Women ◽  
Post Hoc Analysis ◽  
Post Hoc

Impact of concomitant bone-targeted therapies (BTT) on outcomes in metastatic castration-resistant prostate cancer (mCRPC) patients (pts) without prior chemotherapy (ctx) treated with abiraterone acetate (AA) or prednisone (P).

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 5037-5037 ◽  
Author(s):  
Fred Saad ◽  
Karim Fizazi ◽  
Matthew R. Smith ◽  
Thomas W. Griffin ◽  
Anil Londhe ◽  
...  
Keyword(s):  
Bone Metastases ◽  
Cox Regression ◽  
Performance Status ◽  
Phase Iii ◽  
End Points ◽  
Opiate Use ◽  
Potential Clinical Benefit ◽  
Ecog Ps ◽  
Post Hoc ◽  
The Impact

5037 Background: BTT can delay symptomatic progression in cancer pts with bone metastases. In a post hoc analysis, we assessed the impact of concomitant BTT on outcomes in a recent large, multinational study in mCRPC pts without prior ctx. Methods: COU-AA-302 was a phase III trial in asymptomatic/mildly symptomatic pts with progressive mCRPC and no prior ctx. 1,088 pts were stratified by ECOG performance status (ECOG-PS, 0 vs 1) and randomized 1:1 to AA 1 g or placebo QD, plus prednisone 5 mg BID. Radiographic progression-free survival (rPFS) and overall survival (OS) were primary end points; secondary end points were times to opiate use, ctx, ECOG-PS deterioration, and PSA progression. The effect of concomitant use of BTT on all end points was assessed retrospectively using a stratified Cox regression model with factors for treatment, concomitant BTT, interaction of treatment and BTT, and baseline covariates. All data were obtained from a prespecified interim analysis at 55% OS events. Results: Median follow-up at the time of analysis was 27.1 mos. Among intent-to-treat (ITT) pts, 184/546 AA and 169/542 P pts received concomitant BTT for treatment of bone metastases, either zoledronic acid (n = 330), other bisphosphonates (n = 16), denosumab (n = 22), and/or other BTT (n = 5). In these pts, concomitant BTT use was associated with improved OS, time to opiate use for cancer pain, and time to ECOG-PS deterioration (Table). Results were similar in a sensitivity analysis including only ITT pts with bone metastases at baseline. Conclusions: In this post hoc, exploratory analysis, concomitant BTT use was associated with delayed symptomatic progression in asymptomatic/mildly symptomatic mCRPC pts. This potential clinical benefit should be investigated in prospective studies. Clinical trial information: NCT00887198. [Table: see text]

Influence of tumor size and Eastern Cooperative Oncology Group performance status (ECOG PS) at baseline on patient (pt) outcomes in lenvatinib-treated radioiodine-refractory differentiated thyroid cancer (RR-DTC).

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 6081-6081 ◽  
Author(s):  
Lori J. Wirth ◽  
Sophie Leboulleux ◽  
Naomi Kiyota ◽  
Makoto Tahara ◽  
Kei Muro ◽  
...  
Keyword(s):  
Tumor Size ◽  
Group Performance ◽  
Performance Status ◽  
Objective Response ◽  
Eastern Cooperative Oncology Group ◽  
Progression Free Survival ◽  
Disease Characteristics ◽  
Kaplan Meier ◽  
Ecog Ps ◽  
Post Hoc

6081 Background: In SELECT, lenvatinib significantly improved progression-free survival (PFS) of pts with RR-DTC versus placebo (18.3 v 3.6 months; hazard ratio [HR]: 0.21 [99% CI: 0.14, 0.31]; P<0.001). Here we examine the treatment of RR-DTC with lenvatinib in relation to tumor size (sum of all targeted lesions) and ECOG PS. Methods: In this post hoc analysis of SELECT with pts randomized to receive lenvatinib, Kaplan-Meier estimates of time to ECOG PS ≥2 were calculated for subgroups of pts according to baseline ECOG PS or tumor size. Objective response rate (ORR) and Kaplan-Meier estimates of overall survival (OS) and PFS according to ECOG PS (0 or 1) at baseline were calculated. Correlations between ECOG PS at baseline (0 or 1) and maximum tumor shrinkage were calculated using one-way analysis of variance. Results: Pts with ECOG PS 0 or 1 at baseline had similar demographic and disease characteristics. ORR was 78.5% and 51.0% for pts with ECOG PS 0 and 1 at baseline, respectively (odds ratio [95% CI]: 3.508 [2.018, 6.097]). Mean maximum percent decrease in tumor size was significantly greater in pts with baseline ECOG PS 0 (-46.13%) versus pts with ECOG PS 1 (-37.16%; P=0.0017). For pts with ECOG PS 1 at baseline, time to ECOG PS ≥2 was numerically shorter with tumor size >60 mm versus tumor size ≤60 mm (HR [95% CI]: 1.450 [0.708, 2.967]). Additional results are summarized in the table. Conclusions: Among pts with RR-DTC, PFS, OS, ORR, and time to ECOG ≥2 were generally better for patients with lower ECOG PS or smaller tumor size at baseline. These results may indicate that it is beneficial to start lenvatinib in pts with RR-DTC early, before ECOG PS worsens and tumor size increases. Clinical trial information: NCT01321554. [Table: see text]

Sign in / Sign up

Export Citation Format

Share Document