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No longer recruiting (closed or complete)Last updated: 13 August 2024

CYCLONE 3: This phase III study is trying to determine whether adding targeted therapy (abemaciclib) to hormone therapy (abiraterone) in combination with steroids (prednisolone or prednisone) prolongs the time before prostate cancer gets worseA Phase 3, Randomized, Double-Blind, Placebo-Controlled Study of Abemaciclib in Combination With Abiraterone Plus Prednisone in Men With High-Risk Metastatic Hormone-Sensitive Prostate Cancer

Trial purpose

Medical clipboardCancer treatment

Tumor type

Urinary System Cancers Genitourinary

Age

People18+

Trial acronym

CYCLONE 3

Clinical summary

Summary

Eligible participants will be randomly allocated to either the Experimental Arm or Active Comparator Arm. In the Experimental Arm, participants will receive abemaciclib + abiraterone + prednisone/prednisolone, all administered orally. In the Active Comparator Arm, participants will receive a placebo for abemaciclib + abiraterone + prednisone/prednisolone, all administered orally.

Conditions

This trial is treating people with prostate cancer

Eligibility

Inclusion

  • Adenocarcinoma of the prostate (as the predominant histology)
  • High-risk metastatic hormone-sensitive prostate cancer. High risk is defined as:

    • Greater than or equal to (≥)4 bone metastases by bone scan and/or
    • ≥1 visceral metastases by computed tomography or magnetic resonance imaging
  • Must have initiated androgen deprivation therapy (ADT) with luteinizing hormone-releasing hormone (LHRH) agonist/antagonist or bilateral orchiectomy prior to randomization. Up to 3 months of ADT prior to randomization is permitted with or without first-generation anti-androgen.
  • Adequate organ function
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1

Exclusion

  • Prior treatment with abemaciclib or any other cyclin dependent kinase 4 and 6 (CDK4 & 6) inhibitor
  • Development of metastatic prostate cancer in the context of castrate levels of testosterone
  • Received any prior systemic therapy for metastatic prostate cancer (including investigational agents), except for ADT and first-generation anti-androgen
  • Clinically significant cardiovascular disease as evidenced by myocardial infarction, arterial thrombotic events, or severe/unstable angina in the past 6 months, or New York Heart Association Class II to IV heart failure
  • History of syncope of cardiovascular etiology, ventricular arrhythmia of pathological origin, or sudden cardiac arrest. Chronic and hemodynamically stable atrial arrhythmia well-controlled on medical therapy is permitted
  • Uncontrolled hypertension
  • Clinically active or chronic liver disease, moderate/severe hepatic impairment
  • Known untreated central nervous system (CNS) metastasis. Participants with a history of treated brain metastases are eligible if stable for at least 8 weeks prior to randomization and off corticosteroid for at least 2 weeks prior to randomization

Inclusion

  • Your cancer has spread to other parts of the body (metastatic) or has grown into nearby parts of the body (locally advanced).
  • You have had a certain type of treatment or surgical procedure.

Exclusion

  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

Trial sponsor

Eli Lilly and Company

Scientific Title

A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study of Abemaciclib in Combination With Abiraterone Plus Prednisone in Men With High-Risk Metastatic Hormone-Sensitive Prostate Cancer

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