A Study of Abemaciclib (LY2835219) With Abiraterone in Men With Prostate Cancer That Has Spread to Other Parts of the Body and is Expected to Respond to Hormonal Treatment (Metastatic Hormone-Sensitive Prostate Cancer)

NCT05288166 · CYCLONE 3 Phase 3Active, not recruiting

Lead sponsor
Eli Lilly and Company (Industry)
Enrollment
925 (actual)
Start date
14 Apr 2022
Primary completion
15 Feb 2024 (actual)
Study completion
1 Oct 2027
Last update posted
1 Jul 2026

Design

Study type
Interventional
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel
Masking
Double
Arms
2

Interventions

  • Abemaciclib Drug
  • Abiraterone Drug
  • Prednisone or Prednisolone Drug
  • Placebo for Abemaciclib Drug

Conditions and primary outcome

  • Prostatic Neoplasms
  • Neoplasm Metastasis
  • Urogenital Neoplasms
  • Physiological Effects of Drugs
  • Antineoplastic Agents
  • Antineoplastic Agents, Hormonal
  • Androgens
  • Hormones
  • Hormones, Hormone Substitutes, and Hormone Antagonists
  • Abiraterone Acetate
  • Steroid Synthesis Inhibitors
  • Cytochrome P-450
  • Enzyme Inhibitors
  • Prednisone
  • Prednisolone
  • Cyclin-Dependent Kinase 4
  • Cyclin-Dependent Kinase 6

Primary outcome

Radiographic Progression-Free Survival (rPFS) Assessed by Investigator (From Date of Randomization to Radiographic Disease Progression or Death from Any Cause (up to 22 months))

Posted results on ClinicalTrials.gov

Source: ClinicalTrials.gov results for NCT05288166 (opens in a new tab)· Licence: public-domain

First posted · Last update posted · Imported from ClinicalTrials.gov download 2026-10-25

Primary outcomes with a statistical analysis

No primary outcome with a statistical analysis is posted for this study.

Serious adverse events

Time frame: Baseline up to 22 months

Participants with serious adverse events per group for CYCLONE 3, as posted
GroupAffectedAt risk
Abemaciclib145460
Placebo68460

Posted results as ClinicalTrials.gov prints them: primary outcome analyses and serious adverse event totals only. Registry facts, not reviewed by HealthTrade and not investment advice; filing-derived results are listed separately.

Source: ClinicalTrials.gov, U.S. National Library of Medicine. Listing a study does not mean NLM has evaluated it.

Results from company and journal sources

No editor-confirmed results are on record for this study.

Publications

No PubMed citation lists NCT05288166.

CT-VCA trial quality

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Data integrity

Compare what the registry, company releases, FDA documents and publications say about this study.

Drugs on HealthTrade

Source

Source: ClinicalTrials.gov, U.S. National Library of Medicine. Listing a study does not mean NLM has evaluated it.

Nothing on this page is medical or investment advice.