Abstract | BACKGROUND:
ME-143, a second-generation tumor-specific NADH oxidase inhibitor, is broadly active against human cancers in vitro and in vivo. This first-in-human dose-escalation study evaluated the dose-limiting toxicities (DLTs), pharmacokinetics, safety, tolerability, and preliminary anti- tumor activity of ME-143 in patients with advanced solid tumors. METHODS: Patients with advanced solid tumors were treated in a 3 + 3 escalation design. ME-143 was administered via intravenous infusion on days 1, 8, and 15 of the first 28-day cycle, and weekly thereafter; the final cohort received twice-weekly treatment. Samples for pharmacokinetic analysis were collected during cycle 1. Treatment continued until disease progression or unacceptable toxicity. RESULTS: Eighteen patients were treated: 2.5 mg/kg (n = 3); 5 mg/kg (n = 3); 10 mg/kg (n = 3); 20 mg/kg (n = 6); 20 mg/kg twice-weekly (n = 3). There were no DLTs observed. Nearly all treatment-related toxicities were grade 1/2, specifically (all grades) nausea (22 %) and fatigue (17 %). Two patients experienced infusion reactions at the 20 mg/kg dose level, one of which was grade 4. Stable disease was documented in three patients with colorectal cancer, cholangiocarcinoma, and anal cancer. Pharmacokinetic exposures were linear and dose-dependent, with a half-life of approximately 5 h. CONCLUSIONS:
ME-143 was well-tolerated when administered intravenously at the maximally administered/recommended phase 2 dose of 20 mg/kg once weekly to patients with advanced solid tumors. Though limited clinical activity was observed with monotherapy, inhibitors of tumor-specific NADH oxidase such as ME-143 may derive their greatest benefit in combination with cytotoxic chemotherapy.
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Authors | Shubham Pant, Howard A Burris 3rd, Kathleen Moore, Johanna C Bendell, Carla Kurkjian, Suzanne F Jones, Ofir Moreno, John G Kuhn, Scott McMeekin, Jeffrey R Infante |
Journal | Investigational new drugs
(Invest New Drugs)
Vol. 32
Issue 1
Pg. 87-93
(Feb 2014)
ISSN: 1573-0646 [Electronic] United States |
PMID | 23525756
(Publication Type: Clinical Trial, Phase I, Journal Article)
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Chemical References |
- Antineoplastic Agents
- Benzopyrans
- Enzyme Inhibitors
- ME-143
- Multienzyme Complexes
- NADH oxidase
- NADH, NADPH Oxidoreductases
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Topics |
- Adult
- Aged
- Aged, 80 and over
- Antineoplastic Agents
(administration & dosage, adverse effects, pharmacokinetics, therapeutic use)
- Area Under Curve
- Benzopyrans
(administration & dosage, adverse effects, pharmacokinetics, therapeutic use)
- Dose-Response Relationship, Drug
- Enzyme Inhibitors
(administration & dosage, adverse effects, pharmacokinetics, therapeutic use)
- Female
- Humans
- Male
- Middle Aged
- Multienzyme Complexes
(antagonists & inhibitors)
- NADH, NADPH Oxidoreductases
(antagonists & inhibitors)
- Neoplasms
(drug therapy, pathology)
- Treatment Outcome
- Young Adult
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