Table 1.

Receptor binding affinities of somatostatin, octreotide and lanreotide

	sst1	sst2	sst3	sst4	sst5
Receptor binding affinity (IC50 nmol/L)
Somatostatin[12]	0.93	0.15	0.56	1.50	0.29
Octreotide[12]	280.00	0.38	7.10	> 1000	6.30
Lanreotide[13]	> 1000	0.80	107	> 1000	5.20