PMID- 20491780 OWN - NLM STAT- MEDLINE DCOM- 20100818 LR - 20191210 IS - 1349-7006 (Electronic) IS - 1347-9032 (Linking) VI - 101 IP - 8 DP - 2010 Aug TI - Phase I study of inotuzumab ozogamicin (CMC-544) in Japanese patients with follicular lymphoma pretreated with rituximab-based therapy. PG - 1840-5 LID - 10.1111/j.1349-7006.2010.01601.x [doi] AB - Inotuzumab ozogamicin (CMC-544), an antibody-targeted chemotherapeutic agent composed of an anti-CD22 antibody conjugated to calicheamicin, a potent cytotoxic antibiotic, specifically targets the CD22 antigen present in >90% of B-lymphoid malignancies, rendering it useful for treating patients with B-cell non-Hodgkin lymphoma (B-NHL). This phase I study evaluated the safety, tolerability, efficacy, and pharmacokinetics of inotuzumab ozogamicin in Japanese patients. Eligible patients had relapsed or refractory CD22-positive B-NHL without major organ dysfunction. Inotuzumab ozogamicin was administered intravenously once every 28 days (dose escalation: 1.3 and 1.8 mg/m(2)). All 13 patients had follicular lymphoma, were previously treated with > or =1 rituximab-alone or rituximab-containing chemotherapy, and were enrolled into two dose cohorts (1.3 mg/m(2), three patients; 1.8 mg/m(2), 10 patients). No patient had dose-limiting toxicities, and the maximum tolerated dose, previously determined in non-Japanese patients (1.8 mg/m(2)), was confirmed. Drug-related adverse events (AEs) included thrombocytopenia (100%), leukopenia (92%), lymphopenia (85%), neutropenia (85%), elevated AST (85%), anorexia (85%), and nausea (77%). Grade 3/4 drug-related AEs in > or =15% patients were thrombocytopenia (54%), lymphopenia (31%), neutropenia (31%), and leukopenia (15%). The AUC and C(max) of inotuzumab ozogamicin increased dose-dependently with pharmacokinetic profiles similar to non-Japanese. Seven patients had complete response (CR, 54%) including unconfirmed CR, four patients had partial response (31%), and two patients had stable disease (15%). The overall response rate was 85% (11/13). Inotuzumab ozogamicin was well tolerated at doses up to 1.8 mg/m(2) and showed preliminary evidence of activity in relapsed or refractory follicular lymphoma pretreated with rituximab-containing therapy, warranting further investigations. This trial was registered in ClinicalTrials.gov (NCT00717925). FAU - Ogura, Michinori AU - Ogura M AD - Department of Hematology and Oncology, Nagoya Daini Red Cross Hospital, Nagoya, Japan. mi-ogura@naa.att.ne.jp FAU - Tobinai, Kensei AU - Tobinai K FAU - Hatake, Kiyohiko AU - Hatake K FAU - Uchida, Toshiki AU - Uchida T FAU - Kasai, Masanobu AU - Kasai M FAU - Oyama, Takashi AU - Oyama T FAU - Suzuki, Tatsuya AU - Suzuki T FAU - Kobayashi, Yukio AU - Kobayashi Y FAU - Watanabe, Takashi AU - Watanabe T FAU - Azuma, Teruhisa AU - Azuma T FAU - Mori, Masakazu AU - Mori M FAU - Terui, Yasuhito AU - Terui Y FAU - Yokoyama, Masahiro AU - Yokoyama M FAU - Mishima, Yuko AU - Mishima Y FAU - Takahashi, Shunji AU - Takahashi S FAU - Ono, Chiho AU - Ono C FAU - Ohata, Junko AU - Ohata J LA - eng SI - ClinicalTrials.gov/NCT00717925 PT - Clinical Trial, Phase I PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20100423 PL - England TA - Cancer Sci JT - Cancer science JID - 101168776 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Antibodies, Monoclonal, Murine-Derived) RN - 4F4X42SYQ6 (Rituximab) RN - P93RUU11P7 (Inotuzumab Ozogamicin) SB - IM MH - Adult MH - Aged MH - Antibodies, Monoclonal/*administration & dosage/adverse effects/pharmacokinetics MH - Antibodies, Monoclonal, Humanized MH - Antibodies, Monoclonal, Murine-Derived MH - Antineoplastic Combined Chemotherapy Protocols/*therapeutic use MH - Female MH - Humans MH - Inotuzumab Ozogamicin MH - Lymphoma, Follicular/*drug therapy MH - Male MH - Middle Aged MH - Rituximab EDAT- 2010/05/25 06:00 MHDA- 2010/08/19 06:00 CRDT- 2010/05/25 06:00 PHST- 2010/05/25 06:00 [entrez] PHST- 2010/05/25 06:00 [pubmed] PHST- 2010/08/19 06:00 [medline] AID - CAS1601 [pii] AID - 10.1111/j.1349-7006.2010.01601.x [doi] PST - ppublish SO - Cancer Sci. 2010 Aug;101(8):1840-5. doi: 10.1111/j.1349-7006.2010.01601.x. Epub 2010 Apr 23.