Cited by 206Monoclonal and Polyclonal Antibodies ResearchToxin Mechanisms and ImmunotoxinsImmunotherapy and Immune Responses

Cantuzumab Mertansine, a Maytansinoid Immunoconjugate Directed to the CanAg Antigen: A Phase I, Pharmacokinetic, and Biologic Correlative Study

Tolcher, Anthony W., Ochoa, Leonel, Hammond, Lisa A., Patnaik, Amita, Edwards, Tam, Takimoto, Chris, Smith, Lon, de Bono, Johann +11 more·2003·Journal of Clinical Oncology

Abstract

Purpose: To determine the maximum tolerated dose and pharmacokinetics of cantuzumab mertansine, an immunoconjugate of the potent maytansine derivative (DM1) and the humanized monoclonal antibody (huC242) directed to CanAg, intravenously (IV) once every 3 weeks and to seek evidence of antitumor activity. Patients and Methods: Patients with CanAg-expressing solid malignancies were treated with escalating doses of cantuzumab mertansine administered IV every 3 weeks. The pharmacokinetic parameters of cantuzumab mertansine, the presence of plasma-shed CanAg, and the development of both human antihuman and human anti-DM1 conjugate antibodies also were characterized. Results: Thirty-seven patients received 110 courses of cantuzumab mertansine at doses ranging from 22 to 295 mg/m 2. Acute, transient, and reversible elevations of hepatic transaminases were the principal toxic effects. Nausea, vomiting, fatigue, and diarrhea were common but rarely severe at the highest dose levels. Dose, peak concentration, and area under the concentration–time curve correlated with the severity of transaminase elevation. The mean (± SD) clearance and terminal elimination half-life values for cantuzumab mertansine averaged 39.5 (±13.1) mL/h/m 2 and 41.1 (±16.1) hours, respectively. Strong expression (3+) of CanAg was documented in 68% of patients. Two patients with chemotherapy-refractory colorectal carcinoma had minor regressions, and four patients had persistently stable disease for more than six courses. Conclusion: The recommended dose for cantuzumab mertansine is 235 mg/m 2 IV every 3 weeks. The absence of severe hematologic toxic effects, preliminary evidence of cantuzumab mertansine tumor localization, and encouraging biologic activity in chemotherapy-refractory patients warrant further broad clinical development of this immunoconjugate in CanAg-expressing tumors.

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Crossref · 10.1200/jco.2003.05.137

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  • The majority of clinical trials testing antibody-drug conjugates targeting CEACAM5, EGFR and TROP2 with various cytotoxic payloads showed either insufficiency to overcome therapy resistance or high toxicity.

    “the majority of clinical trials that tested ADCs targeting carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5; CEA), EGFR and trophoblast cell surface antigen-2 (TROP2) with various cytotoxic payloads showed the insufficiency of ADCs to overcome therapy resistance or have been highly toxic.7178”

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Authors
Tolcher, A. W., Ochoa, L., Hammond, L. A., Patnaik, A., Edwards, T., Takimoto, C., Smith, L., de Bono, J., Schwartz, G., Mays, T., Jonak, Z. L., Johnson, R., DeWitte, M., Martino, H., Audette, C., Maes, K., Chari, R. V. J., Lambert, J. M., & Rowinsky, E. K.
Affiliations
  • Brooke Army Medical Center (US)
  • From the Institute for Drug Development, Cancer Therapy and Research Center and The University of Texas Health Science Center at San Antonio; and Brooke Army Medical Center, San Antonio, TX; GlaxoSmithKline, Collegeville, PA; and ImmunoGen Inc., Cambridge, MA.
Venue
Journal of Clinical Oncology
Published
2003-01-15
Volume
21
Issue
2
Pages
211-222
ISSN
  • 0732-183X (ISSN-L)
  • 1527-7755
OpenAlex
W2121080375
Cited by
206
References
16
Citations by year
2026: 1 · 2025: 7 · 2024: 1 · 2023: 5 · 2022: 3 · 2021: 7 · 2020: 8 · 2019: 7 · 2018: 8 · 2017: 5 · 2016: 8 · 2015: 19 · 2014: 9 · 2013: 10 · 2012: 16
FWCI
10.49
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Clinical Oncology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Immunology and Microbiology › Immunology › Toxin Mechanisms and Immunotoxins
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
DM1, pharmacokinetics, maximum tolerated dose, hepatotoxicity, colorectal cancer, solid tumors, tumor localization, anticancer activity
MeSH terms
Adult, Aged, Antibodies, Monoclonal, Antineoplastic Agents, Phytogenic, Dose-Response Relationship, Drug, Female, Half-Life, Humans, Infusions, Intravenous, Male, Maytansine, Middle Aged, Neoplasms, Mucin-1, Immunoconjugates, Maximum Tolerated Dose

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