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Kloft C, Graefe EU, Tanswell P, Scott AM, Hofheinz R, Amelsberg A, Karlsson MO. Population pharmacokinetics of sibrotuzumab, a novel therapeutic monoclonal antibody, in cancer patients. Invest New Drugs 2004; 22:39-52. [PMID: 14707493 DOI: 10.1023/b:drug.0000006173.72210.1c] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Population pharmacokinetics of sibrotuzumab, a humanized monoclonal antibody directed against fibroblast activation protein, were determined after multiple intravenous infusions of dosages ranging from 5 mg/m(2) to an absolute dose of 100 mg, in patients with advanced or metastatic carcinoma. In total, 1844 serum concentrations from 60 patients in three Phase I and II clinical studies were analyzed. The structural model incorporated two disposition compartments and two parallel elimination pathways from the central compartment, one linear and one nonlinear. Finally estimated pharmacokinetic parameters (%RSE) were: linear clearance CLL 22.1 ml/h (9.6), central distribution volume V1 4.13l (3.7), peripheral volume V2 3.19l (8.8), inter-compartmental clearance Q 37.6 ml/h (9.6); for the nonlinear clearance Vmax was 0.0338 mg/h (25) and Km 0.219 microg/ml (57). At serum concentrations between approximately 20 ng/ml and 7 microg/ml, the effect of the nonlinear clearance on pharmacokinetics was marked. Only at >7 microg/ml did CLL dominate overall clearance. Interindividual variability was 57% for CLL, 20% for V1 and V2, and 29% for Vmax and was larger than the inter-occasional variability of 13%. Of the many investigated patient covariates, only body weight was found to contribute to the population model. It significantly affected CLL, V1, V2 and Vmax resulting in marked differences in the model-predicted concentration-time profiles after multiple dosing in patients with low and high body weights. In conclusion, a robust population pharmacokinetic model was developed and evaluated for sibrotuzumab, which identified a possible need to consider body weight when designing dosage regimen for future clinical cancer trials.
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Affiliation(s)
- C Kloft
- Freie Universitaet Berlin, Germany.
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2
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Heeg MJ, Jurisson SS. The Role of Inorganic Chemistry in the Development of Radiometal Agents for Cancer Therapy. Acc Chem Res 1999. [DOI: 10.1021/ar980002c] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mary Jane Heeg
- Departments of Chemistry, Wayne State University, Detroit, Michigan 48202, and University of Missouri, Columbia, Missouri 65211
| | - Silvia S. Jurisson
- Departments of Chemistry, Wayne State University, Detroit, Michigan 48202, and University of Missouri, Columbia, Missouri 65211
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3
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Hillyer CD, Klein HG. Immunotherapy and gene transfer in the treatment of the oncology patient: role of transfusion medicine. Transfus Med Rev 1996; 10:1-14. [PMID: 8787926 DOI: 10.1016/s0887-7963(96)80118-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- C D Hillyer
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
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4
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Bender H, Emrich JG, Eshelman J, Chu MA, Steplewski Z, Biersack HJ, Brady LW. Enhancement of monoclonal antibody efficacy: the effect of external beam radiation. Hybridoma (Larchmt) 1995; 14:129-34. [PMID: 7590768 DOI: 10.1089/hyb.1995.14.129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
External beam irradiation has been shown to enhance accumulation of monoclonal antibodies (MAb) in tumors in vivo. This effect is mainly attributed to an unspecific damage of vascular endothelial cells resulting in an increased vascular leakage. The aim of our studies was to determine the effects of external beam radiation on the expression and function of the epidermal growth factor receptor (EGF-R) in vivo. Expression and internalization of EGF-R was tested in vivo, employing 125I-MAb 425 that binds specifically to the human EGF-R. Irradiation of human high-grade glioma cell lines U87-MG and A1207 with increasing doses (0-3600 Rad) of 240 kVp X-rays, markedly enhanced the binding of 125I-MAb 425 to the cell surface. This effect could only be observed for a few days following irradiation. No correlation of the radiation dose and overexpression of EGF-R were found. At the same time, irradiation stimulated significant and dose-dependent internalization of 125I-MAb. Internalization and intranuclear accumulation of 125I-MAb are necessary to explain the radiocytotoxic effects of 125I. The combination of external beam irradiation and labeled MAb 425 showed at least additive effects on tumor cell survival, when the interval between irradiation and MAb treatment was short. Our data support the clinical observations in the adjuvant treatment of high grade gliomas with 125I-MAb 425 following surgery and external beam radiation.
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Affiliation(s)
- H Bender
- Department of Nuclear Medicine, University of Bonn, Germany
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5
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Russell PJ, Plomley J, Raghavan D. The use of monoclonal antibodies for the diagnosis and therapy of bladder cancer. BRITISH JOURNAL OF UROLOGY 1993; 71:121-9. [PMID: 8461941 DOI: 10.1111/j.1464-410x.1993.tb15903.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- P J Russell
- Kanematsu Laboratories, Royal Prince Alfred Hospital, Camperdown, Sydney, Australia
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6
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Winzelberg GG, Grossman SJ, Rizk S, Joyce JM, Hill JB, Atkinson DP, Sudina K, Anderson K, McElwain D, Jones AM. Indium-111 monoclonal antibody B72.3 scintigraphy in colorectal cancer. Correlation with computed tomography, surgery, histopathology, immunohistology, and human immune response. Cancer 1992; 69:1656-63. [PMID: 1551051 DOI: 10.1002/1097-0142(19920401)69:7<1656::aid-cncr2820690704>3.0.co;2-n] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
As part of an open-labeled nonrandomized multi-institutional Phase III study, the authors compared the results of In-111 (In-111) B72.3 glycyl-tyrosyl-n-diethylenetriaminepentaacetic acid lysine (GYK-DTPA) monoclonal antibody scintigraphy with computed tomography (CT), surgery, histopathology, immunohistology, and human antibody response in 23 patients with primary colorectal carcinoma. There were no significant adverse reactions to 1 mg of In-111-labeled antibody. Planar imaging identified 16 of 23 primary colon lesions, whereas single photon emission computer tomography (SPECT) imaging identified 21. SPECT also correctly identified lymphatic involvement in four patients. (There were two false-positive results.) Liver metastases were identified with SPECT imaging. Twenty-six percent of patients developed human anti-mouse antibody (HAMA). These preliminary results demonstrate that In-111 B72.3 GYK-DTPA is a safe monoclonal antibody conjugate that has a high sensitivity for identifying primary colorectal cancer. Regional lymphatic and distant liver metastases also can be imaged, but false-positive results can occur.
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Affiliation(s)
- G G Winzelberg
- Department of Nuclear Medicine, Shadyside Hospital, Pittsburgh, PA 15232
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7
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Riambau V, Carrió I, Bernà L, Estorch M, Torres G, Viver E. Evaluation of Indium-111 Antifibrin Monoclonal Antibody Imaging in Deep Venous Thrombosis Diagnosis. Phlebology 1992. [DOI: 10.1177/026835559200700103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: To evaluate Indium-111 antifibrin monoclonal antibody in the diagnosis of deep vein thrombosis. Design: Prospective study in twelve patients undergoing major surgical treatment, including hip surgery, who would be considered at high risk of developing subsequent deep vein thrombosis. Setting: Departments of Angiology and Vascular Surgery, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain. Patients: Twelve patients receiving surgical treatment. Interventions: Bilateral contrast phlebography was performed in all patients, combined with an ***immunoscintigraphic test of an Indium-111 labelled monoclonal ***antibody to fibrin. Patients with deep vein thrombosis were treated with full anticoagulation using heparin. Main outcome measures: The presence of thrombosis on phlebography and the presence of isotopic labelling of suspected deep vein thrombosis on immunoscintigraphic scanning. Results: Phlebography demonstrated venous thrombosis at 23 sites in veins, of which 22 were also detected by immunoscintigraphic scanning. Conclusions: Indium-111 labelled monoclonal antibodies to fibrin may provide an alternative method of investigation for suspected deep vein thrombosis as an alternative to other non-invasive diagnosis methodologies.
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Affiliation(s)
- V. Riambau
- Angiology and Vascular Surgery, Hospital de la Santa Creu i Sant Pau, Av. Anto Ma Claret, 167, 08025 Barcelona, Spain
| | - I. Carrió
- Department of Nuclear Medicine, Hospital de la Santa Creu i Sant Pau, Av. Anto Ma Claret, 167, 08025 Barcelona, Spain
| | - L. Bernà
- Department of Nuclear Medicine, Hospital de la Santa Creu i Sant Pau, Av. Anto Ma Claret, 167, 08025 Barcelona, Spain
| | - M. Estorch
- Department of Nuclear Medicine, Hospital de la Santa Creu i Sant Pau, Av. Anto Ma Claret, 167, 08025 Barcelona, Spain
| | - G. Torres
- Department of Nuclear Medicine, Hospital de la Santa Creu i Sant Pau, Av. Anto Ma Claret, 167, 08025 Barcelona, Spain
| | - E. Viver
- Angiology and Vascular Surgery, Hospital de la Santa Creu i Sant Pau, Av. Anto Ma Claret, 167, 08025 Barcelona, Spain
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8
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de Bie SH, Ferreira TC, Pauwels EK, Cleton FJ. Immunoscintigraphy for cancer detection: "a thousand ills require a thousand cures". J Cancer Res Clin Oncol 1992; 118:1-15. [PMID: 1729256 DOI: 10.1007/bf01192305] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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9
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Naz RK, Bhargava KK. Antibodies to sperm surface fertilization antigen (FA-1): their specificities and site of interaction with sperm in male genital tract. Mol Reprod Dev 1990; 26:175-83. [PMID: 2372399 DOI: 10.1002/mrd.1080260212] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The fertilization antigen (FA-1) isolated from murine testes demonstrated its dimeric form of 49,000 +/- 2,000 molecular weight (M.W.) or a monomer of 23,000 M.W. on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The FA-1 was immunogenic in all three female rabbits tested and raised a high-titer antisera [enzyme-linked immunosorbent assay (ELISA) titers; 1:1,024 to 1:4,096]. The rabbit anti-FA-1 antisera predominantly recognized the dimeric form of 49,000 +/- 2,000 M.W. on the Western blot of lithium diiodosalicylate (LIS)-solubilized murine testes. None of the antisera reacted with any somatic tissue, indicating germ-cell specificity of FA-1. To determine the cellular localization of the immunoreactive FA-1, a novel ultrasensitive immunogold-silver staining (IGSS) procedure was developed. The anti-FA-1-IgG showed intense staining in the luminal region of the seminiferous tubules containing spermatids and spermatozoa. No reaction was observed in the peripheral area of the tubules containing Sertoli cells, spermatogonia, leptotene, and zygotene spermatocytes. The biodistribution studies of 125I-labeled anti-FA-1 IgG in mice revealed that the antibodies do not bind to somatic tissues such as blood cell, liver, heart, kidney, muscle, and gastrointestinal tissue and do not transudate into testes and seminal vesicle. However, the antibodies preferentially transudate into epididymis (especially corpus or cauda regions) and vas deferens to bind to sperm cells. In conclusion, our data indicate that FA-1 can induce an immune response that is germ cell-specific, directed against later stages of spermatogenesis. The antibodies to FA-1 interact with sperm after penetration through epididymis (especially corpus and cauda regions) and vas deferens rather than through testes and seminal vesicles.
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Affiliation(s)
- R K Naz
- Department of Obstetrics and Gynecology, Albert Einstein College of Medicine, Bronx, NY 10461
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10
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Mansi L, Panza N, Battista C, Pacilio G, Salvatore M. The biological approach to radioimmunoscintigraphy. Biomed Pharmacother 1990; 44:295-301. [PMID: 2224061 DOI: 10.1016/0753-3322(90)90132-s] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The authors have analysed the theoretical and clinical implications of a biological approach to radioimmunoscintigraphy (RIS), a new diagnostic technique based on the in vivo reaction between radiolabelled monoclonal antibodies and tumor-associated antigens expressed by the neoplastic cells. The assumption is that, as in all radioisotopic procedures, the radioimmunoscintigraphic image is the expression of differences in concentration (and not in density) between adjacent tissues. This "biological premise" is analysed to demonstrate a possible role of RIS not only in diagnosis but also in prognosis and therapy. A comparison with other imaging procedures and with histopathology, considered as the "gold standard" of the present-day morphological approach to diagnosis, is also discussed. Finally, biological premises, as well as the initial results and prospects regarding the use of high doses of radiolabelled monoclonal antibodies for therapeutic purposes are presented.
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Affiliation(s)
- L Mansi
- Medicina Nucleare, Istituto Nazionale Tumori e Cattedra di Medicina Nucleare, II Facoltà di Medicina, Naples, Italy
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