Ipilimumab in Pretreated Patients With Advanced Malignant Melanoma: Results of the South African Expanded-Access Program
- PMID: 29094091
- PMCID: PMC5646890
- DOI: 10.1200/JGO.2016.006544
Ipilimumab in Pretreated Patients With Advanced Malignant Melanoma: Results of the South African Expanded-Access Program
Abstract
Purpose: The primary objective of this study was to evaluate 1- and 2-year survival rates and durable remissions in pretreated patients with advanced (unresectable or metastatic) malignant melanoma treated with ipilimumab in a South African expanded-access program (SA-EAP).
Patients and methods: This multicenter, retrospective study obtained data from pretreated patients with advanced malignant melanoma who were eligible for the ipilimumab SA-EAP. Ipilimumab was administered at a dose of 3 mg/kg intravenously every 3 weeks for four cycles to adults with advanced melanoma for whom at least one line of treatment for metastatic disease had failed. Data from the medical records of 108 patients treated within the SA-EAP were collected and statistically analyzed to determine overall (OS) and progression-free survival (PFS) at 1 and 2 years.
Results: In the population of 108 patients, a median OS of 8.98 months (95% CI, 7.47 to 10.79 months) was observed. One-year OS was 36% (95% CI, 26% to 45%), and 2-year survival was observed as 20% (95% CI, 12% to 27%). The median survival without progression (ie, PFS) was 3.44 months (95% CI, 2.98 to 4.16 months), and 1- and 2-year PFS were 22% (95% CI, 14% to 29%) and 14% (95% CI, 8% to 21%), respectively. The longest recorded survival was 3.4 years. No independent prognostic variables were identified to predict for OS by multivariate Cox proportional hazards model.
Conclusion: In this multicenter South African setting, ipilimumab at a dose of 3 mg/kg was an effective treatment with long-term OS in a subset of patients with pretreated advanced malignant melanoma.
Conflict of interest statement
The following represents disclosure information provided by authors of this manuscript. All relationships are considered compensated. Relationships are self-held unless noted. I = Immediate Family Member, Inst = My Institution. Relationships may not relate to the subject matter of this manuscript. For more information about ASCO’s conflict of interest policy, please refer to www.asco.org/rwc or ascopubs.org/jco/site/ifc. Bernardo L. RapoportHonoraria: Tesaro, Merck, Bristol-Myers Squibb Consulting or Advisory Role: Tesaro, Merck, Bristol-Myers Squibb Speakers’ Bureau: Tesaro, Merck, Bristol-Myers Squibb Research Funding: Tesaro, Merck, Bristol-Myers Squibb Travel, Accommodations, Expenses: Tesaro, Merck, Bristol-Myers SquibbDaniel A. VorobiofConsulting or Advisory Role: Amgen, Roche, Bristol-Myers SquibbLydia M. DreostiHonoraria: Roche, Janssen Pharmaceuticals Consulting or Advisory Role: Roche, Janssen Pharmaceuticals, Novartis Speakers’ Bureau: Janssen Pharmaceuticals Travel, Accommodations, Expenses: Roche, Janssen Pharmaceuticals, Merck SeronoAdam NosworthySpeakers’ Bureau: Key Oncologics Travel, Accommodations, Expenses: Bristol-Myers Squibb, Janssen OncologyGeorgina McAdamNo relationship to discloseJohan P. JordaanSpeakers’ Bureau: Merck Serono Research Funding: Roche, PAREXEL International, Ipsen, Quintiles, Novartis Travel, Accommodations, Expenses: RocheHelen Miller-JansönConsulting or Advisory Role: HEXOR (Inst) Research Funding: HEXOR (Inst)Margreet de NeckerConsulting or Advisory Role: HEXOR (Inst) Research Funding: HEXOR (Inst)Janetta C. de BeerConsulting or Advisory Role: HEXOR (Inst) Research Funding: HEXOR (Inst)Hennie DuvenhageEmployment: Bristol-Myers Squibb Research Funding: Bristol-Myers Squibb
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