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A Trial Comparing Docetaxel 75 mg/m2 (3w) Versus Docetaxel 50 mg/m2 (2w) in Combination With Darolutamide + ADT in mHSPC Patients

Phase 3
Recruiting
Conditions
Metastatic Hormone-Sensitive Prostate Cancer (mHSPC)
Interventions
Drug: Standard ADT (androgen deprivation therapy)
Drug: Standard Darolutamide
Drug: Docetaxel
Registration Number
NCT05676203
Lead Sponsor
Jena University Hospital
Brief Summary

The purpose of this clinical phase 3 randomized trial is to compare two different dosing schedules of Docetaxel in combination with ADT and Darolutamide in subjects with mHSPC. The main question aims to compare grade 3-5 adverse events (AEs) in patients with mHSPC treated with 6 cycles of either Docetaxel 75 mg/m2 every 3 weeks in a 3 week cycle or 6 cycles of Docetaxel 50 mg/m2 every 2 weeks in a 4 week cycle in combination with Darolutamide + ADT. The primary endpoint are Grade 3-5 AEs, followed by neutropenia grade 3/4 + grade 5 AEs to be analysed 28 weeks after last patient first Docetaxel dose (LPFD).

Detailed Description

This is a randomized, open, controlled, multicenter phase III clinical trial. Approximately 250 patients with mHSPC who are candidates for docetaxel, darolutamide and ADT will be randomized (1:1 ratio) to one of the following study arms:

* Arm 1: 6 x Docetaxel 75 mg/m2 every 3 weeks of a 3 week cycle

* Arm 2: 6 x Docetaxel 50 mg/ m2 every 2 weeks of a 4 week cycle Subjects will be stratified at randomization for the extent of disease and for Alkaline Phosphatase levels.

All subjects must receive ADT of Investigator's choice (LHRH agonist/antagonists or orchiectomy) and darolutamide as standard therapy. Six cycles of docetaxel are be administered after randomization according to either Arm 1 or Arm 2. After completion of study drug treatment, subjects will continue with the observation period. During the observation period all subjects will continue with Darolutamide+ADT until occurrence of metastatic castration-resistant prostate cancer (mCRPC).

Recruitment & Eligibility

Status
RECRUITING
Sex
Male
Target Recruitment
250
Inclusion Criteria
  • Written informed consent
  • Males ≥18 years of age
  • Histologically or cytologically confirmed adenocarcinoma of prostate
  • Investigator assessed metastatic disease documented either by a positive bone scan, or for soft tissue or visceral metastases, either by contrast-enhanced abdominal/pelvic/chest computed tomography (CT) or magnetic resonance imaging (MRI) scan assessed. Metastatic disease is defined as either malignant lesions in bone scan or soft tissue/visceral lesions according to Response Evaluation Criteria In Solid Tumors (RECIST) 1.1. Lymph nodes are measurable if the short axis diameter is ≥15 mm, soft tissue/visceral lesions are measurable if the long axis diameter is ≥10 mm.
  • Subjects with lymph node metastases only (either below the aortic bifurcation (N1) or above the aortic bifurcation (M1a)) will not be eligible for the study.
  • Subjects must be candidates for ADT, docetaxel and darolutamide therapy per Investigator's judgment
  • Started ADT (LHRH agonist/antagonist or orchiectomy) with or without first generation anti-androgen, but no longer than 12 weeks before randomization. For subjects receiving LHRH agonists, treatment in combination with a first generation anti-androgen for at least 4 weeks, prior to randomization is recommended. First generation anti-androgen has to be stopped prior to randomization.
  • An Eastern Cooperative Oncology Group performance status of 0 or 1
  • Blood counts at Screening: hemoglobin ≥9.0 g/dL, absolute neutrophil count ≥1.5x109/L, platelet count ≥100x109/L (subject must not have received any growth factor within 4 weeks or a blood transfusion within 7 days of the hematology laboratory sample obtained at Screening)
  • Screening values of serum alanine aminotransferase and/or aspartate transaminase ≤1.5x upper limit of normal (ULN), total bilirubin ≤ULN, creatinine ≤2.0x ULN

Sexually active male subjects must agree to use condoms as an effective barrier method and refrain from sperm donation, and/or their female partners of reproductive potential to use a method of effective birth control, during the treatment with darolutamide and for 3 months after the end of the treatment with darolutamide and 6 months after treatment with docetaxel.

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Exclusion Criteria
  • Exclusion criteria
  • Prior treatment with:
  • LHRH agonist/antagonists started more than 12 weeks before randomization Second-generation androgen receptor (AR) inhibitors such as enzalutamide, apalutamide, darolutamide, other investigational AR inhibitors
  • Cytochrome P 17 enzyme inhibitor such as abiraterone acetate or oral ketoconazole as antineoplastic treatment for prostate cancer
  • Chemotherapy, immunotherapy, radium or other therapeutic radiopharmaceuticals for prostate cancer (e.g. Lutetium177-PSMA) prior to randomization
  • Treatment with radiotherapy (external beam radiation therapy, brachytherapy) within 2 weeks before randomization
  • Known hypersensitivity to any of the study drugs, study drug classes, or excipients in the formulation of the study drugs
  • Contraindication to both CT and MRI contrast agent
  • Had any of the following within 6 months before randomization: stroke, myocardial infarction, severe/unstable angina pectoris,coronary/peripheral artery bypass graft, congestive heart failure (New York Heart Association Class III or IV)
  • Uncontrolled hypertension as indicated by a resting systolic blood pressure (BP) ≥160 mmHg or diastolic BP ≥100 mmHg despite medical management
  • Had a prior malignancy. Adequately treated basal cell or squamous cell carcinoma of skin or superficial bladder cancer that has not spread behind the connective tissue layer (i.e., pTis, pTa, and pT1) is allowed, as well as any other cancer for which treatment has been completed ≥5 years before randomization and from which the subject has been disease-free
  • A gastrointestinal disorder or procedure which is expected to interfere significantly with absorption of study drug
  • An active viral hepatitis, known human immunodeficiency virus infection with detectable viral load, or chronic liver disease with a need for treatment
  • Previous (within 28 days before the start of study drug or 5 half-lives of the investigational treatment of the previous study, whichever is longer) or concomitant participation in another clinical study with investigational medicinal product(s)
  • Any other serious or unstable illness, or medical, social, or psychological condition, that could jeopardize the safety of the subject and/or his/her compliance with study procedures, or may interfere with the subject's participation in the study or evaluation of the study results
  • Inability to swallow oral medications
  • Previous assignment to treatment in this study
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Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Arm 1Standard ADT (androgen deprivation therapy)6 x Docetaxel 75 mg/m2 every 3 weeks of a 3 week cycle Co-administration of docetaxel, darolutamide and standard ADT
Arm 2Standard Darolutamide6 x Docetaxel 50 mg/ m2 every 2 weeks of a 4 week cycle Co-administration of docetaxel, darolutamide and standard ADT
Arm 1Docetaxel6 x Docetaxel 75 mg/m2 every 3 weeks of a 3 week cycle Co-administration of docetaxel, darolutamide and standard ADT
Arm 2Standard ADT (androgen deprivation therapy)6 x Docetaxel 50 mg/ m2 every 2 weeks of a 4 week cycle Co-administration of docetaxel, darolutamide and standard ADT
Arm 2Docetaxel6 x Docetaxel 50 mg/ m2 every 2 weeks of a 4 week cycle Co-administration of docetaxel, darolutamide and standard ADT
Arm 1Standard Darolutamide6 x Docetaxel 75 mg/m2 every 3 weeks of a 3 week cycle Co-administration of docetaxel, darolutamide and standard ADT
Primary Outcome Measures
NameTimeMethod
Rate of grade 3-5 AEs28 weeks after last patient first Docetaxel dose (LPFD)

Rate of grade 3-5 AEs, followed by rate of neutropenia grade 3/4 + grade 5 AEs t

Secondary Outcome Measures
NameTimeMethod
Time to first symptomatic skeletal event (SSE)approximately 42 months

approx. every 90 days up to the first occurence of SSE, defined as the time from randomization to the first occurrence of SSE. An SSE is defined as EBRT to relieve skeletal symptoms, or new symptomatic pathologic bone fracture, or occurrence of spinal cord compression or tumor-related orthopedic surgical intervention, whichever comes first.

Time to initiation of subsequent antineoplastic therapyapproximately 42 months

approx. every 90 days up to the date of first subsequent antineoplastic therapy for prostate cancer

Symptomatic skeletal event free survival (SSE)approximately 42 months

approx. every 90 days up to the first occurence of SSE, symptomatic skeletal event free survival, defined as the time from randomization to the first occurrence of SSE or death from any cause, whichever comes first. An SSE is defined as EBRT to relieve skeletal symptoms, or new symptomatic pathologic bone fracture, or occurrence of spinal cord compression or tumor-related orthopedic surgical intervention, whichever comes first.

PSA-response28 after LPFD

PSA-response (PSA \<=0.2, \>0.2-4.0 und \>4.0 ng/ml) determined at week 28 after LPFD

Treatment emergent adverse eventsapproximately 42 months

all grade AEs until the end-of-study treatment visit (to be analysed 26 weeks after last patient first Docetaxel, all grade AEs until the discontinuation visit, all and Study drug-related SAEs until the end of Survival Follow-up

Time to castration-resistant prostate cancerapproximately 42 months

approx. every 90 days, defined as the time to PSA progression with serum testosterone being at castrate level \<0.50 ng/mL, or the time to progression by soft tissue/visceral lesions or time to progression by bone lesions whatever comes first;

Overall survivalapproximately 42 months

defined as the time (in days) from date of randomization until death from any cause

Time to pain progressionapproximately 42 months

approx. every 90 days up to the first date a subject experiences a pain progression. Pain to be assessed with a patient reported questionaire

Time to worsening of physical symptoms of diseaseapproximately 42 months

approx. every 90 days up to the first date a subject experiences an increase in physical symptoms based on the NCCN-FACT-FPSI-17 questionnaire

Trial Locations

Locations (41)

Klinikum Nürnberg

🇩🇪

Nürnberg, Germany

St. Anna Hospital Herne

🇩🇪

Herne, Germany

Universitätsklinikum Gießen und Marburg - Standort Marburg

🇩🇪

Marburg, Germany

TUM Klinikum

🇩🇪

München, Germany

UROLOGIE BAYENTHAL Gemeinschaftspraxis

🇩🇪

Köln, Germany

LMU Klinikum

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München, Germany

St. Theresien Krankenhaus Nürnberg

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Nürnberg, Germany

Urologisches Zentrum Euregio

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Würselen, Nordrhein-Westfalen, Germany

University Hospital Jena, Department of Urology

🇩🇪

Jena, Thuringia, Germany

Städtisches Klinikum Dessau

🇩🇪

Dessau, Germany

KEM | Evang. Kliniken Essen-Mitte

🇩🇪

Essen, Germany

Klinikum Wetzlar

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Wetzlar, Hessen, Germany

Urologische Klinik München Planegg

🇩🇪

Planegg, München, Germany

Med. Hochschule Hannover

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Hannover, Niedersachsen, Germany

Brüderkrankenhaus St- Josef Paderborn

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Paderborn, Nordrhein-Westfalen, Germany

Helios Klinikum Erfurt

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Erfurt, Germany

Uniklinikum Erlangen

🇩🇪

Erlangen, Germany

Universitäts Klinikum Frankfurt

🇩🇪

Frankfurt am Main, Germany

Universitätsklinikum Ulm

🇩🇪

Ulm, Germany

Krankenhaus Martha-Maria Halle Dölau gGmbH

🇩🇪

Halle/Saale, Sachsen-Anhalt, Germany

Marien Krankenhaus

🇩🇪

Bergisch Gladbach, Germany

Universitätsklinikum Giessen und Marburg GmbH, Standort Giessen

🇩🇪

Giessen, Germany

Universitätsklinikum Münster

🇩🇪

Münster, Germany

Studienpraxis Urologie

🇩🇪

Nürtingen, Germany

Praxisgemeinschaft f. Onkologie & Urologie

🇩🇪

Wilhelmshaven, Schleswig Holstein, Germany

Universitätsklinikum Bonn

🇩🇪

Bonn, Germany

Urologicum Duisburg

🇩🇪

Duisburg, Nordrhein-Westfalen, Germany

Urologie Schlosscarree

🇩🇪

Braunschweig, Germany

Universitätsklinikum Düsseldorf

🇩🇪

Düsseldorf, Germany

Helios Universitätsklinikum Wuppertal

🇩🇪

Wuppertal, Germany

Nationales Centrum für Tumorerkrankungen (NCT) Heidelberg

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Heidelberg, Baden-Württemberg, Germany

Universitätsklinikum Essen

🇩🇪

Essen, Germany

Krankenhaus Nordwest

🇩🇪

Frankfurt am Main, Germany

Vivantes Prostatazentrum im Klinikum am Urban

🇩🇪

Berlin, Germany

Universitätsklinikum Schleswig-Holstein - Campus Lübeck

🇩🇪

Lübeck, Germany

Universitätsklinikum Magdeburg

🇩🇪

Magdeburg, Germany

Universitätsmedizin Mannheim

🇩🇪

Mannheim, Germany

Uniklinikum Würzburg

🇩🇪

Würzburg, Germany

Brüderkrankenhaus

🇩🇪

Trier, Germany

Universitätsklinikum Tübingen

🇩🇪

Tuebingen, Germany

Universitätsklinikum Hamburg-Eppendorf

🇩🇪

Hamburg, Germany

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