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Poster display session

2998 - Patient preference between Cabazitaxel and Docetaxel for first-line chemotherapy in metastatic castrate-resistant prostate cancer (mCRPC): results from the CABADOC randomized trial

Date

10 Sep 2017

Session

Poster display session

Topics

Cytotoxic Therapy;  Prostate Cancer

Presenters

Karim Fizazi

Citation

Annals of Oncology (2017) 28 (suppl_5): v269-v294. 10.1093/annonc/mdx370

Authors

K. Fizazi1, R. Delva2, G. Gravis3, G. Baciarello4, C. Theodore5, M. Gross-Goupil6, E. Bompas7, F. Joly Lobbedez8, Y. Tazi9, T. L'Haridon10, T. Nguyen Tan Hon11, P. Barthelemy12, S. Culine13, J. Berdah14, M. Deblock15, P. Beuzeboc16, A. Fléchon17, C. Cheneau18, G. Martineau19, I. Borget20

Author affiliations

  • 1 Cancer Medicine, Gustave Roussy, 94800 - Villejuif/FR
  • 2 Medical Oncology, Centre Paul Papin, 49100 - Angers/FR
  • 3 Medical Oncology, Institute Paoli Calmettes, 13274 - Marseille/FR
  • 4 Cancer Medicine, Gustave Roussy Institut de Cancérologie, 94805 - Villejuif/FR
  • 5 Medical Oncology, Hopital Foch, 92151 - Suresnes/FR
  • 6 Medical Oncology, CHU Bordeaux Hopital St. André, 33000 - Bordeaux/FR
  • 7 Medical Oncology, ICO Institut de Cancerologie de l'Ouest René Gauducheau, 44805 - Saint-Herblain/FR
  • 8 Medical Oncology, Centre Francois Baclesse, 14076 - Caen/FR
  • 9 Medical Oncology, Strasbourg Oncologie Libérale, 67000 - Strasbourg/FR
  • 10 Medical Oncology, CHD Vendee - Hopital Les Oudairies, 85925 - La Roche sur Yon/FR
  • 11 Medical Oncology, CHU Besançon, Hôpital Jean Minjoz, 25030 - Besançon/FR
  • 12 Medical Oncology, C.H.U. Strasbourg-Nouvel Hopital Civil, 67000 - Strasbourg/FR
  • 13 Medical Oncology, Hôpital St. Louis, 75010 - Paris/FR
  • 14 Medical Oncology, Hopital privé Hyeres, Hyeres/FR
  • 15 Medical Oncology, Institut de Cancérologie de Lorraine - Alexis Vautrin, 54519 - Vandoeuvre les Nancy/FR
  • 16 Medical Oncology, Institut Curie, 75248 cedex5 - Paris/FR
  • 17 Oncology, Centre Léon Bérard, Lyon/FR
  • 18 Medical Oncology, CH Sud Bretagne, 56322 - Lorient/FR
  • 19 Clinical Reasearch, Gustave Roussy, 94800 - Villejuif/FR
  • 20 Statistics, Institut Gustave Roussy, 94800 - Villejuif/FR
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Resources

Abstract 2998

Background

Docetaxel and cabazitaxel are taxane chemotherapy approved in men with mCRPC after they demonstrated improved overall survival in first- and second-line, respectively. Recent data suggested similar efficacy when used in the first-line setting (Sartor O, ASCO 2016). These two taxanes have different safety profiles. Assessing patient preference between docetaxel and cabazitaxel would contribute to further differentiate between these two agents.

Methods

The CABADOC study is a randomized trial with a cross-over design. Patients with mCRPC were randomized in a 1:1 ratio to receive either docetaxel 75mg/m2/q3w x 4 followed by cabazitaxel 25mg/m2/q3w x 4, or the reverse sequence. Randomisation was stratified based on prior abiraterone or enzalutamide. The primary endpoint was patient preference between taxanes, assessed in patients who had received at least one cycle of each taxane and who had not experienced a progression after the first taxane. Prescott’s test was used to analyze the primary endpoint taking into consideration the period effects.

Results

From June 2014 to October 2016, 195 patients were randomized in 17 centers. The median age was 70 years and the median PSA was 49 ng/mL. Patients received 3.8 ± 0.7 and 3.2 ± 1.5 cycles of chemotherapy during the first and the second period, respectively. The eligible population for the primary endpoint comprised 150 patients (45 patients were ineligible for the primary endpoint as per protocol). Among them, 66 preferred cabazitaxel (44% IC95% = [36-52]), 40 preferred docetaxel (27% IC95% = [20-34]), and 44 expressed no preference between taxanes (29% IC95% = [22-37]) (p = 0.009). A greater proportion of patients preferred the first received taxane (44%, IC95% = [36-52]) versus the second taxane (27%, IC95% = [20-34]), or had no preference (29% IC95% = [22-37]). Less fatigue and improved quality of life were the two main reasons provided by patients for their choice. There were 3 toxicity-related deaths (1.5%). Pharmaco-economic analysis, toxicity, and quality of life data will be presented.

Conclusions

A higher proportion of men with mCRPC who are candidates to receive a taxane prefer cabazitaxel over docetaxel.

Clinical trial identification

NCT02044354

Legal entity responsible for the study

Gustave Roussy

Funding

Sanofi

Disclosure

K. Fizazi: Advisory boards/honorarium for Amgen, Astellas, AstraZeneca, Bayer, Clovis, Curevac, Essa, Genentech, Janssen, Orion, Sanofi. G. Gravis: Travels supported by Astellas, Janssen and Sanofi. M. Gross-Goupil: Advisory boards/honorarium for Amgen, Astellas, Janssen, MSD, Sanofi. A. Fléchon: Honorarium from Astellas, Bayer, Janssen, Sanofi Transportation supported by Pfizer, Sanofi, Astellas, Janssen, MSD, AstraZeneca, Roche, Ipsen, Novartis. All other authors have declared no conflicts of interest.

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