| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Locally advanced (Stage III)  myxoid / round cell liposarcoma previously untreated with chemotherapy or radiation |  | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 9.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10024630 |  
| E.1.2 | Term | Liposarcoma non-metastatic |  | 
| E.1.3 | Condition being studied is a rare disease | Yes | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| - To determine the pathological complete response (pCR) rate with trabectedin in patients with locally advanced (Stage III) myxoid / round cell liposarcoma (MRCL).
 |  | 
| E.2.2 | Secondary objectives of the trial | 
| - Evaluate the objective response rate by RECIST and contrast such response with changes in radiological density and tumor pathology
 
 - Describe the incidence and severity of adverse events in this patient population
 
 - Exploratory, hypothesis-generating pharmacogenomic analyses to correlate
 molecular parameters in patient samples with clinical outcomes (pCR)
 |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| • Patient´s written informed consent before any study-specific procedure 
 • Adult patients (≥ 18 years)
 
 • Pathological diagnosis of myxoid / round cell liposarcoma (MRCL) and availability of
 pathology specimens for central review and pharmacogenomic studies
 
 • Clinical evidence of locally advanced (Stage III), non-metastatic tumor, including
 locally recurring disease after initial surgery
 
 • Measurable disease (by RECIST)
 
 • No prior chemotherapy or radiation (except for adjuvant post-operative
 radiotherapy)
 
 • Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) 0-2
 (appendix 1)
 
 • Hematologic variables:
 o Hemoglobin ≥ 9 g/dL
 o Absolute neutrophil count (ANC) ≥ 1,500/µL, and
 o Platelet count ≥ 100,000/µL
 
 • Serum creatinine < 1.5 mg/dL or creatinine clearance > 30 mL/min
 
 • Creatinine phosphokinase (CPK) < 2.5 ULN
 
 • Hepatic function variables:
 o Total bilirubin < ULN
 o Total alkaline phosphatase < 2.5 ULN, or if > 2.5 ULN consider alkaline
 phosphatase liver fraction or GGT or 5’ nucleotidase must be < ULN
 o AST (serum aspartate transaminase [SGOT]) and ALT (serum alanine
 transaminase [SGPT]) must be <2.5 x ULN
 
 • Albumin > 25 g/L
 |  | 
| E.4 | Principal exclusion criteria | 
| • Known hypersensitivity to any of the components of the trabectedin i.v. formulation or dexamethasone
 
 • Pregnant or lactating women or men and women of reproductive potential who are not using effective contraceptive methods (one or more of the following):
 - Complete abstinence from intercourse from 2 weeks prior to administration of the
 study drug, throughout the study, and for at least 6 months after completion or
 premature discontinuation from the study to account for elimination of the
 investigational drug; or,
 - Patient or patient’s partner physical sterilization; or,
 - One of the following, for female patients or female partner of male patients:
 o Implants of levonorgestrel; or,
 o Injectable progestogen; or,
 o Oral contraceptive (combined or progestogen only; subject taking oral
 contraceptives should have been on a stable regimen for at least 2 months
 prior to screening),or,
 o Any intrauterine device (IUD) with published data showing that the lowest
 expected failure rate is less than 1% per year (not all IUDs meet this
 criterion); or,
 o Double barrier method (2 physical barriers or 1 physical barrier plus
 spermicide); or,
 o Any other method with published data showing that the lowest expected
 failure rate for that method is less than 1% per year.
 
 • History of another neoplastic disease (except basal cell carcinoma or cervical
 carcinoma in situ adequately treated) unless in remission for 5 years or longer
 
 • Known distant metastases
 
 • Other serious illnesses such as congestive heart failure or angina pectoris,
 myocardial infarction within 1 year before enrollment, uncontrolled arterial
 hypertension or arrhythmias
 
 • Psychiatric disorder that prevents compliance with protocol
 
 • Active viral hepatitis or chronic liver disease
 
 • Active infection
 
 • Any other unstable medical condition
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| Pathological Complete Response (pCR rate) |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | Information not present in EudraCT | 
| E.6.2 | Prophylaxis | Information not present in EudraCT | 
| E.6.3 | Therapy | Yes | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | Yes | 
| E.6.6 | Pharmacokinetic | Information not present in EudraCT | 
| E.6.7 | Pharmacodynamic | Information not present in EudraCT | 
| E.6.8 | Bioequivalence | Information not present in EudraCT | 
| E.6.9 | Dose response | Information not present in EudraCT | 
| E.6.10 | Pharmacogenetic | Information not present in EudraCT | 
| E.6.11 | Pharmacogenomic | Yes | 
| E.6.12 | Pharmacoeconomic | Information not present in EudraCT | 
| E.6.13 | Others | Information not present in EudraCT | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | Yes | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | No | 
| E.8.1.1 | Randomised | Information not present in EudraCT | 
| E.8.1.2 | Open | Information not present in EudraCT | 
| E.8.1.3 | Single blind | Information not present in EudraCT | 
| E.8.1.4 | Double blind | Information not present in EudraCT | 
| E.8.1.5 | Parallel group | Information not present in EudraCT | 
| E.8.1.6 | Cross over | Information not present in EudraCT | 
| E.8.1.7 | Other | Information not present in EudraCT | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT | 
| E.8.2.2 | Placebo | Information not present in EudraCT | 
| E.8.2.3 | Other | Information not present in EudraCT | 
| E.8.3 | The trial involves single site in the Member State concerned | Yes | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | No | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 1 | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.5.1 | Number of sites anticipated in the EEA | 6 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | Yes | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |  | 
| E.8.7 | Trial has a data monitoring committee | No | 
| E.8.8 | Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 2 | 
| E.8.9.1 | In the Member State concerned months |  | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial years | 2 |