Study of Vorinostat (MK-0683) or Placebo, in Combination With Bortezomib in Participants With Multiple Myeloma (MK-0683-088 AMN)

Sponsor
Merck Sharp & Dohme LLC
Study ID
NCT00773747
Phase
PHASE3
Status
Completed

Conditions

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • Vorinostat — DRUG
    Four 100 mg capsules vorinostat taken orally, once daily, on Days 1 through 14 of each 21-day treatment cycle.
  • bortezomib — DRUG
    1.3 mg/m2 of bortezomib by IV push, on Days 1, 4, 8, and 11 of each 21-day treatment cycle.
  • placebo to vorinostat — DRUG
    Four placebo capsules taken orally, once daily, on Days 1 through 14 of each 21-day treatment cycle.

Study Details

Study of the efficacy and safety of bortezomib administered in combination with vorinostat in patients with relapsed or refractory multiple myeloma. Histone deacetylases (HDAC) facilitate gene transcription by modulating the uncoiling of chromatin. HDAC function is dysregulated in hematologic and solid malignancies, and this dysregulation may result in over-expression of oncogenes. Thus, inhibition of HDACs may result in anti-cancer effects. HDAC inhibitors, like vorinostat, represent a new class of antitumor agents that have the ability to induce antiproliferative effects including cyto-differentiation, cell cycle growth arrest or apoptosis in various cancer cell lines. Several studies have investigated the in vitro antimyeloma activity of vorinostat in combination with bortezomib and have demonstrated that vorinostat may act synergistically with bortezomib to modulate tumor cell growth. Mitsiades et al have shown that vorinostat enhances the sensitivity of bortezomib. Pei et al found that exposure of human multiple myeloma cell lines \& patient-derived multiple myeloma cells to bortezomib and vorinostat resulted in synergistic interactions as a result of: (1) Interruption of NF-kB \& related signaling pathways (JNK, XIAP, Mcl-1, etc.) (2) Inhibition of Hsp90 (3)Induction of ER stress signal and (4) acetylation of Dynein/disruption of aggresome function/formation, salvage for ubiquitinated proteins. In addition a marked increase in mitochondrial injury, caspase activation, and apoptosis was also observed. Bortezomib is indicated for the treatment of patients with multiple myeloma. Two Phase I dose-ranging studies of a regimen combining vorinostat and bortezomib among patients with relapsed as well asend-stage, refractory multiple myeloma have been conducted. These studies enrolled a total of 57 patients. In these studies, administration of vorinostat with standard doses of bortezomib resulted in responses in 20/45 (44%) evaluable patients (Weber et al 2007, Badros et al 2007). The purpose of the present study is to definitively evaluate the clinical activity of vorinostat in combination with bortezomib inpatients with multiple myeloma.

Key Dates

Start date
Dec 1, 2008
Status verified
Apr 2021
Primary completion
Sep 8, 2011
Completion
Jun 30, 2015

Study Design

Enrollment
637 participants (actual)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Experimental: Vorinostat + Bortezomib
    Participants will receive vorinostat four 100 mg capsules (400 mg total) orally 0-30 minutes after a meal on Days 1-14 of a 21-day treatment cycle and bortezomib 1.3 mg/m\^2 by intravenous injection on Days 1, 4, 8, and 11 of a 21-day treatment cycle.
  • Placebo Comparator: Placebo + Bortezomib
    Participants will receive four placebo capsules orally 0-30 minutes after a meal on Days 1-14 of a 21-day treatment cycle and bortezomib 1.3 mg/m\^2 by intravenous injection on Days 1, 4, 8, and 11 of a 21-day treatment cycle.

Primary Outcome Measure

Progression-Free Survival (PFS) [ Time Frame: From randomization to event of disease progression or death assessed up to 32 months (final study analysis) ]

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