Document Detail


Preliminary efficacy of the anti-insulin-like growth factor type 1 receptor antibody figitumumab in patients with refractory Ewing sarcoma.
MedLine Citation:
PMID:  22025154     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: Patients with Ewing sarcoma (ES) with metastases and those who relapse fare poorly and receive therapies that carry significant toxicity. This phase 1/2 study was conducted to evaluate the efficacy of figitumumab in advanced ES.
PATIENTS AND METHODS: Patients with sarcoma 10 to 18 years old were enrolled in two dose escalation cohorts (20 and 30 mg/Kg intravenously every 4 weeks) in the phase 1 portion of the study. Patients with ES 10 years old or older were enrolled in the phase 2 portion of the study. The primary phase 2 objective was objective response rate (ORR).
RESULTS: Thirty-one patients with ES (n = 16), osteosarcoma (n = 11), or other sarcomas (n = 4) were enrolled in the phase 1 portion of the study. Dose escalation proceeded to 30 mg/kg every 4 weeks with no dose-limiting toxicity identified. In the phase 2 portion of the study, 107 patients with ES received figitumumab at 30 mg/kg every 4 weeks for a median of 2 cycles (range, 1 to 16). Sixty three percent of phase 2 patients had received at least three prior treatment regimens. Of 106 evaluable patients, 15 had a partial response (ORR, 14.2%) and 25 had stable disease. Median overall survival was 8.9 months. Importantly, patients with a pretreatment circulating free insulin-like growth factor (IGF) -1 lower than 0.65 ng/mL (n = 14) had a median OS of 3.6 months, whereas those with a baseline free IGF-1 ≥ 0.65 ng/mL (n = 84) had a median OS of 10.4 months (P < .001).
CONCLUSION: Figitumumab had modest activity as single agent in advanced ES. A strong association between pretreatment serum IGF-1 and survival benefit was identified.
Authors:
Heribert Juergens; Najat C Daw; Birgit Geoerger; Stefano Ferrari; Milena Villarroel; Isabelle Aerts; Jeremy Whelan; Uta Dirksen; Mary L Hixon; Donghua Yin; Tao Wang; Stephanie Green; Luisa Paccagnella; Antonio Gualberto
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Publication Detail:
Type:  Clinical Trial, Phase I; Clinical Trial, Phase II; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2011-10-24
Journal Detail:
Title:  Journal of clinical oncology : official journal of the American Society of Clinical Oncology     Volume:  29     ISSN:  1527-7755     ISO Abbreviation:  J. Clin. Oncol.     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-11-30     Completed Date:  2012-01-13     Revised Date:  2013-02-19    
Medline Journal Info:
Nlm Unique ID:  8309333     Medline TA:  J Clin Oncol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4534-40     Citation Subset:  IM    
Affiliation:
University Children's Hospital, Muenster, Germany.
Data Bank Information
Bank Name/Acc. No.:
ClinicalTrials.gov/NCT00560235
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Antibodies, Monoclonal / adverse effects,  therapeutic use*
Antineoplastic Agents / adverse effects,  therapeutic use*
Bone Neoplasms / drug therapy*
Female
Humans
Immunoglobulins, Intravenous
Male
Middle Aged
Receptor, IGF Type 1 / blood,  immunology*
Recurrence
Retreatment
Sarcoma, Ewing / drug therapy*
Grant Support
ID/Acronym/Agency:
ES015704/ES/NIEHS NIH HHS
Chemical
Reg. No./Substance:
0/Antibodies, Monoclonal; 0/Antineoplastic Agents; 0/Immunoglobulins, Intravenous; 0/figitumumab; EC 2.7.10.1/Receptor, IGF Type 1
Comments/Corrections
Comment In:
J Clin Oncol. 2011 Dec 1;29(34):4581-3   [PMID:  22025158 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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