Clinical Trial: A Study of Trabectedin (YONDELIS) in Patients With Locally Advanced or Metastatic Liposarcoma or Leiomyosarcoma

Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Interventional

Official Title: Multicenter, Open-label Study of YONDELIS (Trabectedin) in Subjects With Locally Advanced or Metastatic Liposarcoma or Leiomyosarcoma

Brief Summary: The purpose of this study is to find the optimal dose of trabectedin for Chinese patients with locally advanced or metastatic L-sarcoma (liposarcoma or leiomyosarcoma) who were previously treated (in any order) with at least an anthracycline and ifosfamide containing regimen, or an anthracycline containing regimen and 1 additional cytotoxic chemotherapy regimen (Part 1) and to evaluate whether the overall survival (OS) of the trabectedin group is superior to dacarbazine group (Part 2).

Detailed Summary: The study is divided into 2 separate parts (ie, Part 1 and Part 2). Part 1 is a dose finding part (to find the optimal dose) of trabectedin for Chinese patients, and Part 2 is a multicenter, randomized (the study medication is assigned by chance), active-controlled (an active substance that is compared with the study medication to test whether the study medication has a real effect in clinical study), parallel-group (a study comparing the response in two or more groups of patients receiving different interventions), open-label (all people know the identity of the intervention) bridging part comparing the efficacy and safety of the optimal dose of trabectedin with dacarbazine in the same population as in Part 1. The study (in both Part 1 and Part 2) will consist of a screening phase, a treatment phase and a follow-up phase. Part 1: Optimal dose (ie, maximum tolerated dose [MTD]) is determined from the following 3 dose levels: Dose level 1 (1.5 mg/m2), Dose level 2 (1.2 mg/m2), and Dose level 3 (1.0 mg/m2)of trabectedin. Cohorts of 6 patients will be treated at each dose level. To determine MTD, dose limiting toxicity (DLT; any pre-defined adverse event that occurs during the first cycle ie, Cycle 1) will be determined. In the first cohort of 6 patients, (a) if DLT is less than or equal to 1 at a dose level, it is considered as MTD (b) if DLT is greater than 2, patients will be de-escalated to next dose level (c) if DLT is equal to 2, 3 more patients will be included at that dose level and if there will be no DLT in those 3 patients, that dose level is considered as MTD. Part 2: If the optimal dose found in Part 1 is 1.5 mg/m2, approximately 48 patients will be randomly assigned to either the trabectedin (approximately 32 patients) or dacarbazine (approximately 16 patients) treatment group in Part 2. If the optimal dose found in Part 1 is below 1.5 mg/m2, 123 patients will be randomly assigned to either the trabectedin (approximately 82 patients) or dacarbazine (appro
Sponsor: Xian-Janssen Pharmaceutical Ltd.

Current Primary Outcome:

• Part 1: Optimal dose level (Maximum tolerated dose [MTD]) of trabectidin [ Time Frame: From the date of dosing until 21days after the date of last patient enrolled ]
  MTD (1.5, 1.2 or 1.0 mg/m2) is determined by assessing Dose Limiting Toxicity (DLT).
• Part 1: Overall survival [ Time Frame: From the date of dosing upto 18 months after the last patient enrollment or 30 days after the last dose of study medication has been administered, whichever will be later ]
  Patients will be monitored for survival status at least every 60 days for the first 2 years after the last dose of study drug and every 90 days thereafter.
• Part 2: Overall survival [ Time Frame: From the date of randomization until the required number of events has occurred (approximately 32 if 1.5mg/m2, or 82 with below 1.5mg/m2) as assessed approximately for 6 months after the last patient enrollment ]
  Patients will be monitored for survival status at least every 60 days for the first 2 years after the last dose of study drug and every 90 days thereafter.

Original Primary Outcome: Same as current

Current Secondary Outcome:

• Part 1: Progression free survival (PFS) [ Time Frame: From date of dosing until the date of first documented progression or date of death from any cause, whichever comes first, as assessed up to 18 months after the last patient enrollment ]
  PFS is defined as the time from dosing to the occurrence of disease progression or death, whichever occurs first.
• Part 2: Progression free survival (PFS) [ Time Frame: From the date of randomization till the first documented disease progression or death whichever comes first until the required number of events, estimate of 6 months after the last patient enrollment ]
  PFS is defined as the time from randomization to the occurrence of disease progression or death, whichever occurs first.
• Part 1: Time-to-progression (TTP) [ Time Frame: From date of dosing until the date of first documented progression or date of death from any cause, whichever comes first, as assessed up to 18 months after the last patient enrollment ]
  Time-to-progression (TTP) is defined as the time between dosing and disease progression.
• Part 2: Time-to-progression (TTP) [ Time Frame: From the date of randomization till the first documented disease progression or death whichever comes first until the required number of events, estimate of 6 months after the last patient enrollment ]
  Time-to-progression (TTP) is defined as the time between randomization and disease progression.
• Part 1: Objective Response Rate (ORR) [ Time Frame: From date of dosing until the date of best response, as assessed up to 18 months after the last patient enrollment ]
  Objective Response Rate (ORR) is defined as having complete response or partial response as best overall response based on reconciled radiographic disease assessment.
• Part 2: Objective Response Rate (ORR) [ Time Frame: From date of dosing until the date of best response, as assessed up to 6 months after the last patient enrollment ]
  Objective Response Rate (ORR) is defined as having complete response or partial response as best overall response based on reconciled radiographic disease assessment.
• Part 1: Duration of response (DR) [ Time Frame: From date of dosing until the date of first documented progression or date of death from any cause, whichever comes first, as assessed approximately up to 18 months after the last patient enrollment ]
  Duration of response (DR) is defined only for patients who have CR or PR as best overall response and is calculated from the date of the first documentation of response to the date of disease progression or death, whichever occurs first.
• Part 2: Duration of response (DR) [ Time Frame: From the date of randomization till the first documented disease progression or death whichever comes first, assessed approximately up to 6 months after the last patient enrollment ]
  Duration of response (DR) is defined only for patients who have CR or PR as best overall response and is calculated from the date of the first documentation of response to the date of disease progression or death, whichever occurs first.
• Part 1: Observed maximum plasma concentration (Cmax) [ Time Frame: Days 1, 2, 3, 4, 5, 8 of first 2 treatment cycles ]
  Pharmacokinetic parameter Cmax of trabectedin will be determined
• Part 1: Area under the plasma concentration-time curve (AUC) [ Time Frame: Days 1, 2, 3, 4, 5, 8 of first 2 treatment cycles ]
  Pharmacokinetic parameter AUC of trabectedin will be determined.

Original Secondary Outcome: Same as current

Information By: Xian-Janssen Pharmaceutical Ltd.

Dates:
Date Received: August 6, 2012
Date Started: August 2012
Date Completion: December 2018
Last Updated: January 30, 2017
Last Verified: January 2017