- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04298983
Abemaciclib in Combination With Androgen Deprivation Therapy for Locally Advanced Prostate Cancer (RAD 1805)
Phase II Clinical Trial of Abemaciclib in Combination With Androgen Deprivation Therapy for Locally Advanced Prostate Cancer
Study Overview
Status
Conditions
Detailed Description
A similar hormone-driven cancer akin to breast cancers is prostate cancer. These tumors are driven by androgen receptor signaling, and CDK4/6 has also been found to be a bona fide target pre-clinically for advanced prostate cancer cell models. Moreover, CDK4/6 inhibition can act as a radiation sensitizer through its effects on the DNA damage response and interactions with cell cycle pathway proteins. For example, it has been found that expression of DNA repair proteins can be regulated by E2F, a transcription factor necessary for the G1 to S phase transition. Also, cyclin D1 has been found to exert a direct role in DNA repair. Lastly, CDK4/6 inhibition has been found to modulate the DNA damage response. These data support the use of CDK4/6 inhibitors as a modulator of DNA damage to enhance sensitivity to radiation.
Given the role of CDK4/6 in tumor resistance to endocrine therapy, in activation of the DNA damage response, and in promoting radiation resistance, we hypothesize that the targeting of CDK4/6 with abemaciclib will enhance the cytotoxicity in combination with blockade of the androgen receptor pathway. Therefore, we propose a pilot phase II investigator initiated trial in patients with high-risk prostate cancer testing the tolerability and toxicity of abemaciclib in combination with ADT.
Patients will receive ADT for 2 years and will start 3 months before radiation therapy. Abemaciclib will start with initiation of ADT and pause 2 weeks prior to start of radiation therapy. Abemaciclib will resume with the first ADT administration post-radiation, which is about 1 month post radiation therapy. Abemaciclib and ADT will continue for a total ADT period of 24 months. Patients will receive study treatment until development of toxicity or disease progression on treatment or any reasons of withdrawal or a maximum of 24 months of therapy with ADT. Patients are seen every 4 weeks with laboratory evaluation. For toxicity or adverse events, patients will undergo labs, physical examination and grades of toxicities will be determined using NCI CTCAE version 4.03.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Contact
- Name: Andrew McDonald, MD
- Phone Number: (205) 934-5670
- Email: ammcdonald@uabmc.edu
Study Locations
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Alabama
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Birmingham, Alabama, United States, 35249
- University of Alabama at Birmingham (UAB)
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Histologically confirmed (core biopsy proven) adenocarcinoma of prostate, localized high-risk or locally advanced.
One of the below:
- Gleason 7-8, any T-stage, and PSA > 20,
- Gleason 8, ≥ T2, any PSA,
- Gleason 9-10, any T-stage, any PSA
- Available biopsy of primary tumor or resected tumor specimen with adequate samples.
- Prior treatment with systemic anti-cancer agents is not allowed.
- ECOG PS=0 or 1.
- Must have at least 1 target lesion.
Adequate hematologic and end-organ function:
- ANC ≥ 1500/mm3
- Platelet count ≥ 100,000/mm3
- Hb ≥ 9g/dl
- Creatinine ≤ ULN or Creatinine Clearance (CrCl) ≥ 60 ml/min
- Total Bilirubin ≤ 1.5 x ULN (except subjects with Gilbert syndrome, who can have total Bilirubin > 2.0 x ULN and direct bilirubin within normal limits are permitted).
- AST, ALT and alkaline phosphatase ≤ ULN
- Agreement to remain abstinent or use appropriate contraception.
- Willingness and ability to consent for self to participate in study.
- Willingness and ability to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures.
Exclusion Criteria:
- Prior treatment to CDK4-6 inhibitor.
- Prior treatment with systemic agents or radiation treatment for the primary cancer.
- Major surgical procedure or significant traumatic injury within 4 weeks prior to study treatment, and must have fully recovered from any such procedure.
- Personal history of any of the following conditions: syncope of cardiovascular etiology, ventricular arrhythmia of pathological origin (including, but not limited to, ventricular tachycardia and ventricular fibrillation), or sudden cardiac arrest.
- Angina, myocardial infarction (MI), symptomatic congestive heart failure, cerebrovascular accident, transient ischemic attack (TIA), arterial embolism, pulmonary embolism, percutaneous transluminal coronary angioplasty (PTCA), or coronary artery bypass grafting (CABG) within 6 months prior to study treatment.
- Known active viral or non-viral hepatitis or cirrhosis.
- Any active infection requiring systemic treatment, positive tests for Hepatitis B surface antigen or Hepatitis C ribonucleic acid (RNA).
- Known history of AIDS (acquired immunodeficiency syndrome)-defining illness.
- Patients must be surgically sterile or must agree to use effective contraception during the study treatment (including temporary breaks from treatment), and for at least 180 days after stopping last dose of Abemaciclib.
- Other severe and/or uncontrolled acute or chronic medical or psychiatric condition or laboratory abnormality that, in the judgment of the investigator, may increase the risk associated with study participation or may interfere with the interpretation of study results and would make the patient inappropriate for this study (for example, interstitial lung disease, severe dyspnea at rest or requiring oxygen therapy, severe renal impairment [e.g. estimated creatinine clearance <30ml/min], history of major surgical resection involving the stomach or small bowel, or preexisting Crohn's disease or ulcerative colitis or a preexisting chronic condition resulting in baseline Grade 2 or higher diarrhea.)
- Secondary malignancy requiring active treatment. Past history of malignancy other than prostate cancer treated with curative intent and not requiring additional treatment may be eligible after discussion with PI.
- Patients with active autoimmune disease and history of inflammatory bowel disease. Brachytherapy boost will not be permitted.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Abemaciclib + ADT+ RT
Abemaciclib at 150 mg by mouth twice daily, androgen deprivation therapy (ADT), and radiation therapy in conjunction with ADT.
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Abemaciclib will start with initiation of ADT, 3 months before RT, and pause 2 weeks prior to start of RT.
Abemaciclib will resume with the first ADT administration post-radiation, which is about 1 month post radiation therapy.
Abemaciclib will continue for a total of 24 months.
ADT will be given every 3 months.
ADT and Abemaciclib will pause 2 weeks prior to start of RT.
ADT administration will resume with Abemaciclib post-radiation, which is about 1 month post radiation therapy.
ADT will continue for a total of 24 months.
RT will start 3 months after initiation of ADT and Abemaciclib.
RT will be given as standard of care- 180 cGy x 28 fractions to the whole pelvis and the prostate will receive 250 cGy x 28 fractions.
After RT is completed, both ADT and Abemaciclib will resume and continue for 24 months.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Clinical Response Rates
Time Frame: Baseline to 24 months
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Clinical response rates will be assessed by percentage of patients who achieve the PSA nadir levels of < 0.5ng/ml on treatment
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Baseline to 24 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
PSA declines prior to radiotherapy
Time Frame: Up to 3 months of treatment
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PSA declines prior to radiotherapy- calculated from nadir level prior to initiation of radiation therapy
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Up to 3 months of treatment
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Time to PSA Failure
Time Frame: Baseline up to 24 months
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Time to PSA failure will be analyzed using the Kaplan-Meier method
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Baseline up to 24 months
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Collaborators and Investigators
Investigators
- Principal Investigator: Andrew McDonald, MD, University of Alabama at Birmingham (UAB)
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Neoplasms
- Urogenital Neoplasms
- Neoplasms by Site
- Genital Neoplasms, Male
- Prostatic Diseases
- Urogenital Diseases
- Male Urogenital Diseases
- Genital Diseases, Male
- Genital Diseases
- Prostatic Neoplasms
- Physiological Effects of Drugs
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Androgens
Other Study ID Numbers
- IRB-300004706
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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