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A Dose Escalation Phase I Study of Radiotherapy Administered in Combination With Anti-CTLA4 Monoclonal Antibody (Ipilimumab) in Patients With Unresectable Stage III or Stage IV Advanced Malignant Melanoma
RATIONALE:Anti-melanoma activity of Ipilimumab both as a single therapy and in association with melanoma peptides has been shown as well as synergy between radiation therapy and anti-CTLA-A mAb in several tumor animal models for both local tumor control and distant effects.Radiotherapy increases tumor immunogenicity in several preclinical models by increasing MHC molecules expression and is able to induce significant tumor reduction in around 30% of cases. Thus, combining radiotherapy and administration of ipilimumab could elicit systemic antitumor response. Radiation therapy will expose tumor-associated antigens (TAA) and facilitate antigen presentation, and further blockade of CTLA-4 could amplify the immune antitumor response. In this therapeutical model, the use of the own patient tumor as a source of tumor antigens (in opposition with other vaccination protocols, where TAA are exogenic) is particularly adapted. PURPOSE: This Phase I trial determines the side effects and best dose of radiation therapy administered in combination with ipilimumab.
OBJECTIVES: Primary: To determine the Maximum Tolerated Dose (MTD), Dose Limiting Toxicity (DLT) and recommended Phase 2 dose of radiation therapy administered in combination with ipilimumab. Secondary: Adverse event profiles Preliminary anti-tumor activity following escalating doses of radiation combined to ipilimumab using the immune related response criteria irRC overall survival in patients treated with this combination systemic immunologic anti tumor response intratumoral immune response pharmacodynamic effects of ipilimumab and radiotherapy in combination on Absolute Lymphocyte Count (ALC) associations between ALC and anti-tumor activity of ipilimumab and radiotherapy in combination
Age
18 - No limit years
Sex
ALL
Healthy Volunteers
No
Gustave Roussy Cancer Campus
Villejuif, Val de Marne, France
Institut Gustave Roussy
Villejuif, France
Start Date
March 1, 2011
Primary Completion Date
November 1, 2015
Completion Date
March 1, 2016
Last Updated
June 9, 2016
19
ACTUAL participants
Ipilimumab
DRUG
Radiotherapy
RADIATION
Lead Sponsor
Gustave Roussy, Cancer Campus, Grand Paris
NCT07371663
NCT01898039
Data Source & Attribution
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View ClinicalTrials.gov Terms and ConditionsNCT06209580