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Randomized Phase 2 study of the human monoclonal antibody IMC-3G3 plus a typically used chemotherapy regimen of Mitoxantrone plus Prednisone or the respective chemotherapy regimen alone in patients with prostate cancer that do no longer respond to or showed unbearable toxicity of docetaxel chemotherapy.

A Randomized Phase 2 Study of Human Anti-PDGFRa Monoclonal Antibody IMC-3G3 plus Mitoxantrone plus Prednisone or Mitoxantrone plus Prednisone in Metastatic Castration-Refractory Prostate Cancer (CRPC) Following Disease Progression or Intolerance on Docetaxel-based Chemotherapy.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2009-018015-11-DE
Enrollment
120
Registered
2010-05-14
Start date
2010-10-20
Completion date
Unknown
Last updated
2013-12-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Castration-Refractory Prostate Cancer MedDRA version: 14.1 Level: PT Classification code 10036909 Term: Prostate cancer metastatic System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)

Interventions

Product Name: IMC-3G3 Product Code: IMC-3G3 Pharmaceutical Form: Solution for infusion INN or Proposed INN: IMC-3G3 CAS Number: Not assigned Current Sponsor code: IMC-3G3 Other descriptive name: recom

Sponsors

ImClone LLC
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: - Histologically-confirmed adenocarcinoma of the prostate - castration resistant - progression after or toxicity of docetaxel - adequate hematologic, hepatic and renal function - life expectancy > 3 months - the patient has provided signed informed consent and is amenable to compliance with protocol schedules and testing Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 20 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 100

Exclusion criteria

Exclusion criteria: - more than 1 cytotoxic chemotherapy regimen for metastatic disease - prior therapy with mitoxantrone for prostate cancer - history of prior treatment with agents directly inhibiting PDGF[R] - radiotherapy = 21 days prior to first dose of IMC-3G3 - any investigational therapy within 30 days of randomization - prior strontium-89, rhenium-186, rhenium-188, or samarium-153 radio nucleotide therapy and has either ongoing evidence of bone marrow dysfunction or bone pain that is poorly controlled in the opinion of the investigator - ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, serious cardiac arrhythmia, psychiatric illness, active bleeding, other serious uncontrolled medical disorders - known or suspected brain or leptomeningeal metastases

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective of this study is to compare treatment Arm A (IMC-3G3 plus mitoxantrone plus prednisone) and Arm B (mitoxantrone plus prednisone) in terms of progression-free survival (PFS).;Secondary Objective: The secondary objectives of this study are to: - Compare the overall survival (OS) of both arms - Compare the objective response rate (ORR), according to Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v.1.1) of both arms - Evaluate the prostate-specific antigen (PSA) doubling time in both arms and evaluate the PSA response rate according to two definitions: 1) response manifested by a 50% decline in pretreatment PSA and 2) response defined by a 30% decline in pretreatment PSA at 12 weeks - Assess the safety and tolerability of IMC-3G3 (with prednisone) with and without mitoxantrone - Explore circulating tumor cells (CTC) in whole blood and PDGFRa expression, and their associations with efficacy endpoints - Examine the pharmacokinetics (PK) of IMC-3G3 in combination with mitoxantrone and prednisone and immunogenicity of IMC-3G3.;Primary end point(s): Progression-Free Survival (see section 12.5 for details). ;Timepoint(s) of evaluation of this end point: 21 months

Secondary

MeasureTime frame
Secondary end point(s): include OS/ORR/PSA/PGDFR-alpha/cmax/antibody assessment ;Timepoint(s) of evaluation of this end point: 21 months

Countries

Belgium, Czech Republic, Germany, Hungary, Italy, Spain

Contacts

Public ContactClinical Trials Info

Eli Lilly and Company

EU_Lilly_Clinical_Trials@lilly.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026