Published in:
Open Access
01-12-2017 | Research article
BK-UM in patients with recurrent ovarian cancer or peritoneal cancer: a first-in-human phase-I study
Authors:
Shingo Miyamoto, Fusanori Yotsumoto, Taeko Ueda, Tatsuya Fukami, Ayako Sanui, Kohei Miyata, Sung Ouk Nam, Satoshi Fukagawa, Takahiro Katsuta, Miyako Maehara, Haruhiko Kondo, Daisuke Miyahara, Kyoko Shirota, Toshiyuki Yoshizato, Masahide Kuroki, Hiroaki Nishikawa, Keijiro Saku, Yoshio Tsuboi, Kenji Ishitsuka, Yasushi Takamatsu, Kazuo Tamura, Akira Matsunaga, Toru Hachisuga, Shinsuke Nishino, Takashi Odawara, Kazuhiro Maeda, Sadao Manabe, Toyokazu Ishikawa, Yoshinobu Okuno, Minako Ohishi, Tomoya Hikita, Hiroto Mizushima, Ryo Iwamoto, Eisuke Mekada
Published in:
BMC Cancer
|
Issue 1/2017
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Abstract
Background
BK-UM (CRM197) is a mutant form of diphtheria toxin and a specific inhibitor of heparin-binding epidermal growth factor-like growth factor (HB-EGF). We assessed the safety, pharmacokinetics, recommended dose, and efficacy of BK-UM in patients with recurrent ovarian cancer (OC) or peritoneal cancer (PC), and measured HB-EGF levels in serum and abdominal fluid after BK-UM administration.
Methods
Eleven patients with advanced or recurrent OC or PC were enrolled and treated with BK-UM via the intraperitoneal route. The dose was escalated (1.0, 2.0, 3.3, and 5.0 mg/m2) using a 3 + 3 design.
Results
Eight of 11 patients completed treatment. No dose-limiting toxicity (DLT) was experienced at dose levels 1 (1.0 mg/m2) and 2 (2.0 mg/m2). Grade 3 transient hypotension as an adverse event (defined as a DLT in the present study) was observed in two of four patients at dose level 3 (3.3 mg/m2). Treatment with BK-UM was associated with decreases in HB-EGF levels in serum and abdominal fluid in seven of 11 patients and five of eight patients, respectively. Clinical outcomes included a partial response in one patient, stable disease in five patients, and progressive disease in five patients.
Conclusions
BK-UM was well tolerated at doses of 1.0 and 2.0 mg/m2, with evidence for clinical efficacy in patients with recurrent OC or PC. A dose of 2.0 mg/m2 BK-UM is recommended for subsequent clinical trials.
Trial registration
This trial was prospectively performed as an investigator-initiated clinical trial. The trial numbers are
UMIN000001002 and UMIN000001001, with registration dates of 1/30/2008 and 2/4/2008, respectively. UMIN000001001 was registered as a trial for the continuous administration of BK-UM after
UMIN000001002.