Targeting, Toxicity, and Efficacy of 2-Step, Pretargeted Radioimmunotherapy Using a Chimeric Bispecific Antibody and 131I-Labeled Bivalent Hapten in a Phase I Optimization Clinical Trial
Françoise Kraeber-Bodéré, MD, PhD1,2,
Caroline Rousseau, MD1,
Caroline Bodet-Milin, MD1,
Ludovic Ferrer, MD1,
Alain Faivre-Chauvet, PhD1,2,
Loïc Campion, MD1,
Jean-Philippe Vuillez, MD, PhD3,
Anne Devillers, MD4,
Chien-Hsing Chang, PhD5,
David M. Goldenberg, ScD, MD5,6,
Jean-François Chatal, MD, PhD1,2 and
Jacques Barbet, PhD2
1 Nuclear Medicine Department, René Gauducheau Cancer Center, Nantes, France; 2 Oncology Research Department, INSERM U601, Nantes, France; 3 Nuclear Medicine Department, Michalon Hospital, Grenoble, France; 4 Nuclear Medicine Department, Eugène Marquis Cancer Center, Rennes, France; 5 IBC Pharmaceuticals, Inc., Morris Plains, New Jersey; and 6 Garden State Cancer Center, Center for Molecular Medicine and Immunology, Belleville, New Jersey

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FIGURE 1. Images of SCLC patient showing thoracic and liver tumor involvement (arrows). (A) CT scan obtained before RIT shows multiple liver metastases. (B) Scintigraphy image (anterior view) obtained 7 d after injection of 131I-hapten shows targeting of thoracic and liver metastases.
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FIGURE 2. (A) Scintigraphy image (posterior view) obtained 7 d after injection of 131I-hapten shows high bone marrow uptake in MTC patient. (B) MR image of same patient indicates bone marrow metastases (arrows).
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FIGURE 3. Scintigraphy images (posterior view) illustrate distribution of 131I-hapten in MTC patient (A) and SCLC patient (B). Bone marrow uptake is higher in MTC patient.
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Copyright © 2006 by the Society of Nuclear Medicine.