Study of Vintafolide (MK-8109, EC145) in Participants With Advanced Ovarian and Endometrial Cancers (MK-8109-007, EC-FV-02)
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Protocol EC-FV-02: A Phase II Study of EC145 in Patients With Advanced Ovarian and Endometrial Cancers|
- Part A: Percentage of patients deriving clinical benefit. Part B: To gather pilot data on efficacy and toxicity of EC145. [ Time Frame: Clinical benefit is defined as the ability to receive 6 or more cycles (i.e., months) of therapy without progression of disease. ]
- Tumor responses to EC145 therapy. [ Time Frame: Duration of EC145 therapy will vary according to individual patient response. ]
- Progression-free survival, response duration, and overall survival time observed after EC145 therapy. [ Time Frame: 2 years after completing therapy with EC145 and the 30-day follow-up period. ]
|Study Start Date:||August 2007|
|Study Completion Date:||April 2009|
|Primary Completion Date:||April 2009 (Final data collection date for primary outcome measure)|
Experimental: Ertafolide + Vintafolide
Screening: After completion of all screening procedures and confirmation of eligibility, all participants receive a 1- to 2-mL injection of 0.1 mg ertafolide labeled with 20 to 25 mCi of technetium-99m Part A: Induction phase of treatment: Two 4-week cycles; if stable disease or better at week 8 computed tomography (CT), participant may proceed into maintenance phase, comprised of 4-week cycles with CT every 8 weeks. Participants continue on study until they experience disease progression, unacceptable toxicity, or attain protocol-defined clinical benefit. Part B: 4-week cycles with CT every 8 weeks. Participants continue until they experience disease progression, unacceptable toxicity, or attain protocol-defined clinical benefit.
Part A: Induction Phase: vintafolide 1.0 mg intravenous injection, Monday through Friday, for the first 3 weeks of each 4 week cycle. Maintenance Phase: vintafolide 2.5 mg intravenous injection, Monday, Wednesday and Friday, weeks 1 and 3 of each 4 week cycle. At the investigator's discretion, participants may receive vintafolide via an ambulatory pump after the first week of therapy has been administered in the clinic setting. Part B: vintafolide 2.5 mg intravenous injection, Monday, Wednesday and Friday, weeks 1 and 3 of each 4 week cycle. At the investigator's discretion, participants may receive vintafolide via an ambulatory pump after the first week of therapy has been administered in the clinic setting.Drug: Ertafolide
This is a Phase II clinical trial of vintafolide administered to participants with advanced ovarian and endometrial cancers.
Vintafolide is a drug that is specifically designed to enter cancer cells via the folate vitamin receptor (FR). Experimental evidence shows that this target receptor is expressed on virtually all ovarian cancers as well as the majority of endometrial cancers. Early clinical evidence in a small number of Phase I patients suggests that vintafolide may have antitumor effect in women with advanced ovarian cancer and that it is generally well-tolerated. This evidence suggests that vintafolide may be useful as chemotherapy against advanced ovarian and endometrial cancers. The primary objective of Part A of this study is to collect data on clinical benefit produced by therapy with vintafolide. The primary objective of Part B of this study is to collect data on the safety and efficacy of vintafolide.
All participants will undergo imaging with the FR targeting investigational imaging agent ertafolide (EC20, FolateScan) during the screening period to confirm eligibility for the treatment portion of the clinical trial. Clinical evidence suggests that ertafolide may be used to identify women with cancers that express the target receptor.
Information about the safety and tolerability of both vintafolide and ertafolide will be assessed.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00507741
|Study Director:||Medical Director||Merck Sharp & Dohme Corp.|