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Comparison of Docetaxel/Prednisone to Docetaxel/Prednisone in Combination With OGX-011 in Men With Prostate Cancer (SYNERGY)

This study has been completed.
Sponsor:
Collaborator:
Teva Pharmaceutical Industries
Information provided by (Responsible Party):
OncoGenex Technologies
ClinicalTrials.gov Identifier:
NCT01188187
First received: August 23, 2010
Last updated: October 13, 2016
Last verified: October 2016
  Purpose
This Phase 3 study has been designed to confirm that adding custirsen to standard first-line docetaxel/prednisone treatment can slow tumor progression and enhance survival outcomes compared to standard first-line docetaxel/prednisone treatment alone. This will be a randomized, open-label, multicenter, international trial. Treatment will consist of docetaxel/prednisone/custirsen vs. docetaxel/prednisone. A total of at least 1000 patients will be randomized. Patients will be randomly assigned with equal probability to the two arms.

Condition Intervention Phase
Prostate Cancer
Drug: Custirsen
Drug: Docetaxel
Drug: Prednisone
Drug: Dexamethasone
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Randomized Phase 3 Study Comparing Standard First-Line Docetaxel/Prednisone to Docetaxel/Prednisone in Combination With Custirsen (OGX-011) in Men With Metastatic Castrate Resistant Prostate Cancer

Resource links provided by NLM:


Further study details as provided by OncoGenex Technologies:

Primary Outcome Measures:
  • Kaplan-Meier Estimates for Time to Death (Overall Survival) [ Time Frame: Randomization (approximately Day -12) to longest survival follow-up (Day 971). ] [ Designated as safety issue: No ]
    Time from the date of randomization to death from any cause. After stopping treatment, patients were followed every 4 weeks until disease progression and then followed every 12 weeks until death.


Secondary Outcome Measures:
  • Percentage of Participants Who Were Alive Without Event At Day 140 [ Time Frame: Day 125-155 ] [ Designated as safety issue: No ]
    Patients who were alive without event (AWE) are patients who had their Milestone Day 140 Disease Status performed per protocol (Day 125 - Day 155 window), were not determined to have disease progression by the investigator on that window and confirmed as not having progressive disease (NONPD) by the Central Imagine Lab independent review.

  • Percentage of Participants with Adverse Events [ Time Frame: Docetaxel/prednisone/custirsen arm: Days -9 up to Day 743. Docetaxel/prednisone arm: Day 1 up to Day 400. ] [ Designated as safety issue: No ]
    An adverse event (AE) is any unfavorable and unintended sign (including an abnormal laboratory finding), symptom or disease temporally associated with the administration, at any dose, of a medicinal or therapeutic product whether or not considered related to that product. Severity was rated by the investigator on a scale of 1 (mild) to 5 (death). A severity of 3 = Severe or medically significant but not immediately life-threatening. A severity of 4 = Life-threatening. Serious AEs include death (death due to progressive disease were not reported as an SAE), a life-threatening adverse event, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, OR an important medical event that jeopardized the patient and required medical intervention to prevent the previously listed serious outcomes.


Enrollment: 1022
Study Start Date: November 2010
Study Completion Date: June 2014
Primary Completion Date: February 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Custirsen, Docetaxel, Prednisone

Three doses of 640 mg custirsen administered intravenously (IV) as a loading dose between Days -9 to -1. Custirsen, 640 mg, given IV weekly on Days 1, 8, and 15 of each 21-day cycle. Docetaxel (75 mg/M^2 via intravenous injection) on Day 1 of every 21 days plus prednisone (5 mg tablets taken by mouth) twice each day and dexamethasone (8 mg by mouth twice a day for 3 days beginning one day before docetaxel administration).

Treatment continues for 10 cycles or until unacceptable toxicity or disease progression.

Drug: Custirsen
Other Name: OGX-011
Drug: Docetaxel Drug: Prednisone Drug: Dexamethasone
Dexamethasone 8 mg by mouth twice a day for 3 days beginning one day before docetaxel administration to reduce the incidence and severity of hypersensitivity reactions and fluid retention.
Active Comparator: Docetaxel, Prednisone

Docetaxel (75 mg/M^2 via intravenous injection) on Day 1 of every 21 days plus prednisone (5 mg tablets taken by mouth) twice each day and dexamethasone (8 mg by mouth twice a day for 3 days beginning one day before docetaxel administration).

Treatment continues for 10 cycles or until unacceptable toxicity or disease progression.

Drug: Docetaxel Drug: Prednisone Drug: Dexamethasone
Dexamethasone 8 mg by mouth twice a day for 3 days beginning one day before docetaxel administration to reduce the incidence and severity of hypersensitivity reactions and fluid retention.

  Eligibility

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria

  • Age ≥ 18 years on the date of consent.
  • Histological or cytological diagnosis of adenocarcinoma of the prostate.
  • Metastatic disease on chest, abdominal, or pelvic CT and/or bone scan.
  • Systemic chemotherapy indicated due to progression while on or after androgen ablative therapy defined as:

    1. Progressive measurable disease: at least a 20% increase in the sum of the longest diameters of measurable lesions over the smallest sum observed -or- the appearance of one or more new lesions as assessed by CT scan during hormone ablation treatment. Measurable lesions are nodal or visceral soft-tissue lesions with nodal lesions ≥ 20 mm in diameter or visceral/soft-tissue lesions ≥ 10 mm in diameter (see Section 6.3.1.1 ).

      OR

    2. Bone Scan Progression: appearance of 2 or more new lesions on bone scan during hormone ablation treatment.

      OR

    3. Increasing serum prostate-specific antigen (PSA) level: Two consecutive increases in PSA levels documented over a previous reference value obtained at least one week apart are required. If the third PSA value is less than the second, an additional fourth test to confirm a rising PSA is acceptable. A minimum starting value of 5.0 ng/mL is required for study randomization.
  • Baseline laboratory values as stated below:

    1. Creatinine ≤ 1.5 x upper limit of normal (ULN).
    2. Bilirubin ≤ 1.1 x ULN (unless elevated secondary to conditions such as Gilbert's disease).
    3. Serum glutamic oxaloacetic transaminase (SGOT) and serum glutamic pyruvic transaminase (SGPT) ≤ 1.5 x ULN.
    4. Castrate serum testosterone level (< 50 ng/dL-or-< 1.7 nmol/L).
  • Must be willing to continue primary androgen suppression with gonadotropin-releasing hormone (GnRH) analogues (either agonists or antagonists) throughout the study, unless treated with bilateral orchiectomy.
  • Adequate bone marrow function defined at screening as absolute neutrophil count (ANC) ≥ 1.5 x 10^9 cells /L and platelet count ≥ 100 x 10^9 /L.
  • Karnofsky score ≥ 70% (see Appendix 17.2).
  • At least 28 days has passed since completing radiotherapy (exception for radiotherapy: at least 7 days since completing a single fraction of ≤ 800 centigray (cGy) to a restricted field or limited-field radiotherapy to non-marrow bearing area such as an extremity or orbit) at the time of randomization.
  • At least 4 weeks have passed since receiving any investigational agent at the time of randomization.
  • Has recovered from any other therapy-related toxicity to ≤ grade 2, (except alopecia, anemia and any signs or symptoms of androgen deprivation therapy).
  • Patient must be willing to not add, delete or change their current bisphosphonate or denosumab usage throughout study treatment to assure that adverse event reporting is not confounded by changing their bisphosphonate or denosumab usage (unless withdrawn or changed as a result of bisphosphonate or denosumab associated toxicity).
  • Patients receiving more than 10 mg of prednisone per day (or steroid equivalent) at screening must be willing to have the dose reduced to 10 mg of prednisone per day for at least 7 days prior to randomization and maintained throughout study treatment.
  • Written informed consent must be obtained prior to any protocol-specific procedures being performed.

Exclusion Criteria

  • Received any other cytotoxic chemotherapy as treatment for prostate cancer.
  • Received any cycling, intermittent or continuous hormonal treatment 28 days prior to randomization with the exception of the continuous GnRH analogues required in Inclusion Criteria #6.
  • Participated in a prior clinical study evaluating custirsen.
  • History of or current documented brain metastasis or carcinomatous meningitis, treated or untreated. (Brain imaging for asymptomatic patients is not required.)
  • Current symptomatic cord compression requiring surgery or radiation therapy. (Once successfully treated and there has been no progression, patients are eligible for the study.) -Active second malignancy (except non-melanomatous skin or superficial bladder cancer) defined as requiring anticancer therapy or at high risk of recurrence during the study.
  • Active second malignancy (except non melanomatous skin or superficial bladder cancer) defined as requiring cancer therapy or at high risk of reoccurrence during the study
  • Uncontrolled medical conditions such as heart failure, myocardial infarction, uncontrolled hypertension, stroke or treatment of a major active infection within 3 months of randomization, as well as any significant concurrent medical illness that in the opinion of the Investigator would preclude protocol therapy.
  • Planned concomitant participation in another clinical trial of an experimental agent, vaccine, or device. Concomitant participation in observational studies is acceptable.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01188187

  Show 140 Study Locations
Sponsors and Collaborators
OncoGenex Technologies
Teva Pharmaceutical Industries
Investigators
Study Chair: Celestia Higano, MD Seattle Cancer Care Alliance, US
Study Chair: Kim Chi, MD Vancouver Prostate Centre, BC Cancer Agency, Canada
Study Chair: Johann de Bono, Professor Institute of Cancer Research, UK
  More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: OncoGenex Technologies
ClinicalTrials.gov Identifier: NCT01188187     History of Changes
Other Study ID Numbers: OGX-011-11 TRANSFERRED 
Study First Received: August 23, 2010
Last Updated: October 13, 2016
Health Authority: United States: Food and Drug Administration

Keywords provided by OncoGenex Technologies:
custirsen sodium
prostate cancer
overall survival
Metastatic Castrate Resistant Prostate Cancer

Additional relevant MeSH terms:
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Neoplasms
Genital Diseases, Male
Prostatic Diseases
Dexamethasone acetate
Dexamethasone
Prednisone
Dexamethasone 21-phosphate
Docetaxel
BB 1101
Anti-Inflammatory Agents
Antiemetics
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Gastrointestinal Agents
Glucocorticoids
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Antineoplastic Agents, Hormonal
Antineoplastic Agents
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Tubulin Modulators
Antimitotic Agents
Mitosis Modulators

ClinicalTrials.gov processed this record on December 09, 2016