18.01.2013 Views

VI Autologous Bone Marrow Transplantation.pdf - Blog Science ...

VI Autologous Bone Marrow Transplantation.pdf - Blog Science ...

VI Autologous Bone Marrow Transplantation.pdf - Blog Science ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Table 1. Radioisotopes for RIT.<br />

Purpose Isotope Tl/2 Beta max Gamma<br />

(days) (MeV) (MeV)<br />

diagnosis technetium-99 ml 0.25 - 0.140<br />

dosimetry Indium-Ill 2.8 - 0.173-0.247<br />

Iodine-123 0.54 - 0.159<br />

diagnosis Copper-67 2.4 0.57 0.184<br />

dosimetry Rhenium-186 3.8 1.07 0.137<br />

therapy Rhenium-188 0.7 2.12 0.155<br />

*Nickel-66 2.9 0.20 —<br />

therapy Yttrium-90 2.7 2.27 —<br />

* for adjuvant RIT onlv.<br />

Table 2. Sequential Study Phases for Radioimmunoglobulin<br />

Therapy Agents.<br />

Phase Study Aim<br />

0 Preclinical analysis<br />

1 In vivo stability in human patients<br />

tumor targeting in human patients<br />

2A Optimize therapeutic ratio in human patients<br />

Tumor dosimetry<br />

Human Toxicology<br />

2B Radioactivity escalation in human patients<br />

3 Randomized Trial<br />

RIT vs "old" therapy<br />

4 Incorporation into multimodality treatment<br />

Note: Delay of toxicology and escalation studies until therapeutic radio of RLT<br />

has been optimized. Biodistribution and pharmacokinetic studies are much<br />

easier to perform for RIT than for chemotherapy. They allow for the conservation<br />

of selectivity of RIT and decrease the side effects experienced by patients in<br />

"classical" chemotherapy phase 1 and 2 studies.<br />

SIXTH INTERNATIONAL SYMPOSIUM ON AUTOLOGOUS BONE MARROW TRANSPLANTATION 103

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!