High-dose therapy with 90yttrium-labeled monoclonal antibody CC49

A phase I trial

Margaret Tempero, Peter Leichner, Janina Baranowska-Kortylewicz, Katherine Harrison, Samuel C. Augustine, Jeffrey Schlom, James Anderson, James Wisecarver, David Colcher

Research output: Contribution to journalArticle

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Abstract

A Phase I trial of increasing administered activities of 90yttrium (90Y)-labeled monoclonal antibody (MAb) CC49 was conducted to determine whether extrahematopoietic toxicity occurred with this radioimmunoconjugate. Twelve patients with various gastrointestinal tract cancers were administered a tracer dose of 111In-labeled MAb CC49 for biodistribution and pharmacokinetic studies. Patients then underwent a single treatment with increasing administered activities of 90Y-labeled MAb CC49 (0.3, 0.4, and 0.5 mCi/kg). Biodistribution studies, using 111In-labeled MAb CC49 as a surrogate, were determined using planar and single photon emission computed tomography imaging. Pharmacokinetic studies were performed by measuring radioactivity in blood samples taken at intervals after radioimmunoconjugate infusions. Tissue biopsies of tumor metastases and related normal tissues (liver and bone marrow) were obtained for radioactivity measurements. Radiation dosimetry estimates were calculated using these data. Toxicity was evaluated using the National Cancer Institute Common Toxicity Criteria. No dose limiting extrahematopoietic toxicity was identified in the range of administered activities used in this study. Radioimmunolocalization based on planar and single photon emission computed tomography images 111Inlabeled MAb CC49 showed heterogeneous (nonspecific) liver and erate uptake. The α and β half-lives of 111In-labeled MAb CC49 and 90Y-labeled MAb CC49 in the blood were similar. Absorbed radiation dose estimates in metastatic tumor sites ranged from 180 to 3000 cGy. The percentage of injected dose/kg of tumor ranged from 1.12 to 18.14; however, tumor:normal liver ratios were consistently 90Y in liver was high, and estimates of absorbed dose in liver equaled or exceeded that which could be achieved in metastatic tumor sites. Strategies to enhance access of radioimmunoconjugates in tumor and diminish deposition in the liver need to be developed for effective treatment using MAb CC49 with chelated radiometals.

Original languageEnglish
Pages (from-to)3095-3102
Number of pages8
JournalClinical Cancer Research
Volume6
Issue number8
StatePublished - Aug 2000
Externally publishedYes

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Monoclonal Antibodies
Immunoconjugates
Liver
Neoplasms
Therapeutics
Single-Photon Emission-Computed Tomography
Radioactivity
Pharmacokinetics
Radiometry
Gastrointestinal Neoplasms
National Cancer Institute (U.S.)
Bone Marrow
Radiation
Neoplasm Metastasis
Biopsy

All Science Journal Classification (ASJC) codes

  • Cancer Research
  • Oncology

Cite this

Tempero, M., Leichner, P., Baranowska-Kortylewicz, J., Harrison, K., Augustine, S. C., Schlom, J., ... Colcher, D. (2000). High-dose therapy with 90yttrium-labeled monoclonal antibody CC49: A phase I trial. Clinical Cancer Research, 6(8), 3095-3102.

High-dose therapy with 90yttrium-labeled monoclonal antibody CC49 : A phase I trial. / Tempero, Margaret; Leichner, Peter; Baranowska-Kortylewicz, Janina; Harrison, Katherine; Augustine, Samuel C.; Schlom, Jeffrey; Anderson, James; Wisecarver, James; Colcher, David.

In: Clinical Cancer Research, Vol. 6, No. 8, 08.2000, p. 3095-3102.

Research output: Contribution to journalArticle

Tempero, M, Leichner, P, Baranowska-Kortylewicz, J, Harrison, K, Augustine, SC, Schlom, J, Anderson, J, Wisecarver, J & Colcher, D 2000, 'High-dose therapy with 90yttrium-labeled monoclonal antibody CC49: A phase I trial', Clinical Cancer Research, vol. 6, no. 8, pp. 3095-3102.
Tempero M, Leichner P, Baranowska-Kortylewicz J, Harrison K, Augustine SC, Schlom J et al. High-dose therapy with 90yttrium-labeled monoclonal antibody CC49: A phase I trial. Clinical Cancer Research. 2000 Aug;6(8):3095-3102.
Tempero, Margaret ; Leichner, Peter ; Baranowska-Kortylewicz, Janina ; Harrison, Katherine ; Augustine, Samuel C. ; Schlom, Jeffrey ; Anderson, James ; Wisecarver, James ; Colcher, David. / High-dose therapy with 90yttrium-labeled monoclonal antibody CC49 : A phase I trial. In: Clinical Cancer Research. 2000 ; Vol. 6, No. 8. pp. 3095-3102.
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