Evidence map›Paper›PMID 18565882›Full record

Trial reportJournal of clinical oncology : official journal of the American Society of Clinical Oncology2008

Phase II trial of docetaxel with rapid androgen cycling for progressive noncastrate prostate cancer.

Dana Rathkopf, Michael A Carducci, Michael J Morris, Susan F Slovin, Mario A Eisenberger, Roberto Pili, Samuel R Denmeade, Moshe Kelsen, Tracy Curley, Melinda Halter and 5 more

Abstract readClinical Trial, Phase IIMulticenter Study
In one paragraph

Trial report in Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Accelerating Drug Development in Hormone-Naïve Prostate Cancer through Multimodal Therapy Strategies: The MetaCURE Phase 2 Randomized Clinical Trial.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
    Trial
  3. Trial
  4. Castration-dependent pharmacokinetics of docetaxel in patients with prostate cancer.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2010
    Trial
  5. Article
  6. Review
  7. Cancer epithelia-derived mitochondrial DNA is a targetable initiator of a paracrine signaling loop that confers taxane resistance.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  8. Review
  9. Article
  10. Exploiting Epigenetic Alterations in Prostate Cancer.International journal of molecular sciences · 2017
    Review
  11. Article
  12. Review
  13. Uptake carriers and oncology drug safety.Drug metabolism and disposition: the biological fate of chemicals · 2014
    Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Starving the addiction: new opportunities for durable suppression of AR signaling in prostate cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2009
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors.

Dana RathkopfDepartment of Medicine, Genitourinary Oncology Service, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
Michael A Carducci
Michael J Morris
Susan F Slovin
Mario A Eisenberger
Roberto Pili
Samuel R Denmeade
Moshe Kelsen
Tracy Curley
Melinda Halter
Connie Collins
Martin Fleisher
Glenn Heller
Sharyn D Baker
Howard I Scher

Funding

Translational Research Central ServicesP30CA006973 · NCI · JOHNS HOPKINS UNIVERSITY · PI Rosalie Wollett · 1985 to 2026
$208.6M
SPORE In Prostate CancerP50CA092629 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Yu Chen, MICHAEL J MORRIS · 2001 to 2026
$63.0M
NCI NIH HHS P30 CA006973NCI NIH HHS P50 CA092629NCI NIH HHS P50-CA92629NCI NIH HHS PC051382
6 · The paper itself

Abstract

purposeWe evaluated rapid androgen cycling in combination with docetaxel for men with progressive noncastrate prostate cancers. PATIENTS AND

methodsNoncastrate patients with <or= 6 months of hormone therapy were eligible. Cohort 1 (62 patients) received six 28-day cycles of docetaxel (75 mg/m(2)), leuprolide, and 7 days of topical testosterone. Cohort 2 (38 patients) received nine 21-day cycles of docetaxel (70 mg/m(2)), leuprolide, and 3 days of testosterone. The primary end point was the proportion of patients at 18 months who achieved noncastrate testosterone levels (> 150 ng/dL) and an undetectable prostate-specific antigen (PSA; <or= 0.05, <or= 0.5, or <or= 2.0 ng/mL with prior prostatectomy, radiation therapy, or no definitive therapy, respectively). Cytochrome P450 3A4 (CYP3A4) activity and docetaxel pharmacokinetics were evaluated.

resultsA higher proportion of patients achieved the undetectable PSA outcome at 18 months in cohort 2 relative to cohort 1 (13% v 0%). The 16% incidence of febrile neutropenia was higher than that observed in patients was castration-resistant disease, which may have been related to a 50% reduction in overall docetaxel clearance in the noncastrate group. There was no alteration in CYP3A4 activity (P = .87) or docetaxel clearance (P = .88) between cycles.

conclusionThe undetectable PSA end point allows for a rapid screening of interventions for further study. Increasing the number of docetaxel cycles after a shorter period of testosterone repletion, and a longer duration of testosterone depletion, increased the proportion of men who achieved an undetectable PSA. The higher-than-expected incidence of febrile neutropenia may have been related to the reduced overall docetaxel clearance in patients with noncastrate versus castrate testosterone levels.

Indexed as

AdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsCytochrome P-450 CYP3ACytochrome P-450 Enzyme SystemDocetaxelHumansLeuprolideMaleMiddle AgedProstate-Specific AntigenProstatic NeoplasmsTaxoidsTestosteroneCYP3A protein, humanCytochrome P-450 CYP3ACytochrome P-450 Enzyme SystemDocetaxelLeuprolideProstate-Specific AntigenTaxoidsTestosterone

Identifiers

PMID18565882
PMCPMC3051836

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.