์ฅํธ๋ ์คํ์ด๋ ์์ธํธ์ฐ์ผ
**์ฅํธ๋ ์คํ์ด๋ ์์ธํธ์ฐ์ผ(Octreotide acetate)**์ ์ฒ์ฐ ํธ๋ฅด๋ชฌ์ธ ์๋งํ ์คํํด์ ํฉ์ฑ ์ฅ๊ธฐ ์์ฉํ ์ฅํํฉํ์ด๋ ์ ์ฌ์ฒด์ ๋๋ค. ์์ํ์์๋ ์ฃผ๋ก **์ธ์๋ฆฐ์ข **(ํนํ ๊ฐ์ ํ๋ฟ) ๋ฐ **๊ฐ์คํธ๋ฆฐ์ข **๊ณผ ๊ฐ์ ์ ๊ฒฝ๋ด๋ถ๋น ์ข ์์ ๋ณด์กฐ ์๋ฒ์ผ๋ก ์ฌ์ฉ๋ฉ๋๋ค. ์ฃผ์ ์์ ํฌ์ธํธ: - **์ธ์๋ฆฐ์ข ๊ด๋ฆฌ**: ์ข ์์ฑ ๋ฒ ํ ์ธํฌ์์ ์ธ์๋ฆฐ ๋ฐฉ์ถ์ ์ต์ ํ์ฌ ํ๋น ์์ ์ ๋์ง๋ง, ์์ฉ์ฒด ๋ฐํ ์ฐจ์ด๋ก ์ธํด ํจ๊ณผ๋ ๋ค์ํ ์ ์์ต๋๋ค. - **์ ๋ฏธํ**: ๋ด์ฅ ํ๋ฅ ๋ฐ ๋ฆผํ์ก ์์ฑ์ ๊ฐ์์์ผ ์ ๋ฏธ์ฑ ํ์๋ฅผ ๊ด๋ฆฌํ๊ธฐ ์ํด ํ๊ฐ ์ธ(off-label)๋ก ์ ์ ๋ ๋ง์ด ์ฌ์ฉ๋๊ณ ์์ต๋๋ค. - **์ ํ ์ฌํญ**: ๋งค์ผ ์ฌ๋ฌ ๋ฒ์ ํผํ ์ฃผ์ฌ๊ฐ ํ์ํ๋ฉฐ, ๋ํ๊ฒฌ์ ๊ฒฝ์ฐ ๋น์ฉ์ด ๋งค์ฐ ๋ง์ด ๋ค ์ ์์ต๋๋ค. ๊ณ ์์ด์ ๋ง๋จ๋น๋์ฆ์๋ ํจ๊ณผ๊ฐ ์๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ์ต๋๋ค.
์์ฉ ๊ธฐ์ : **Octreotide** mimics natural somatostatin by binding to **somatostatin receptors (SSTRs)** on target cells. Mechanism pathway: **Octreotide** โ binds to **SSTRs** (G-protein coupled receptors) โ inhibits **adenylyl cyclase** โ decreases intracellular **cAMP** โ reduces calcium influx โ inhibits exocytosis of secretory vesicles. This leads to the potent suppression of multiple endocrine and exocrine secretions, including: - **Insulin** and **glucagon** from the pancreas. - **Gastrin**, **secretin**, and **motilin** from the gastrointestinal tract. - **Growth hormone (GH)** from the anterior pituitary. *Note*: Humans possess 5 SSTR subtypes, whereas dogs primarily express one, which may explain the variable clinical response seen in canine insulinoma patients.
๋๋ฌผ ์ข ๋ณ ์ฉ๋
- Adjunctive treatment of chylothorax ยท 10-20 micrograms/kg ยท SC ยท three times a day ยท 2-3 weeks ยท Prolonged treatment should be discouraged because people treated for longer than 4 weeks are at risk for gallstones.
- Medical treatment of insulinoma (particularly in patients refractory to or unable to tolerate other medical or surgical therapy) ยท 1-2 micrograms/kg ยท SC ยท 2-3 times a day
- Medical treatment of insulinoma (beta cell tumor) particularly in patients refractory to or unable to tolerate other medical or surgical therapy ยท 10-40 micrograms (total dose per dog) ยท SC ยท 2-3 times a day ยท Used in combination with dietary, glucocorticoid, and diazoxide treatment.
- Medical treatment of insulinoma ยท 2-4 micrograms/kg ยท SC ยท q8-12h ยท Further studies needed to determine octreotide's efficacy and safety.
- Adjunctive treatment of gastrinoma ยท 2-20 micrograms/kg ยท SC ยท three times daily ยท With omeprazole.
- Adjunctive treatment of chylothorax ยท 10-20 micrograms/kg ยท SC ยท three times a day ยท 2-3 weeks ยท Prolonged treatment should be discouraged because people treated for longer than 4 weeks are at risk for gallstones.
์ฉ๋์ ๋ฉดํ ์์ ์ ๋ฌธ๊ฐ๋ฅผ ์ํ ์์ ์ฐธ๊ณ ์๋ฃ์ ๋๋ค. ํญ์ ์ต์ ๋ผ๋ฒจ๊ณผ ๊ฐ๋ณ ํ์์ ๋ํด ํ์ธํ์ญ์์ค.
ํฌ์ฌ ๊ฒฝ๋ก
๊ธ๊ธฐ
- Known hypersensitivity to octreotide
์ด์๋ฐ์
- Gastrointestinal upset
- Decreased dietary fat absorption
- Biliary sludging or gallstones (with prolonged use)
- Injection site pain
์ฝ๋ฌผ ์ํธ์์ฉ
- Beta-blockers ยท May cause additive bradycardic effects
- Bromocriptine ยท May increase oral bioavailability
- Calcium-channel blockers ยท May cause additive bradycardic effects
- Cyclosporine ยท May reduce cyclosporine levels
- Diuretics ยท May enhance fluid/electrolyte imbalances
- Food ยท May reduce fat absorption
- Insulin, oral hypoglycemics ยท Octreotide can inhibit insulin
- Quinidine ยท May reduce the quinidine clearance
๋ชจ๋ํฐ๋ง
- Blood glucose (for insulinoma treatment)
- Clinical efficacy
๊ณผ์ฉ๋
Serious adverse effects are unlikely with acute overdose. In humans, subjects have received up to 120 mg IV over 8 hours with no untoward effects. Monitor for profound hypoglycemia or gastrointestinal distress and provide supportive care if needed.
VetSheet ์ฝ๋ฌผ ๋ ํผ๋ฐ์ค๋ ๋ฉดํ ์์ ์ ๋ฌธ๊ฐ๋ฅผ ์ํ ์์ ์์ฌ๊ฒฐ์ ๋ณด์กฐ ๋๊ตฌ์ด๋ฉฐ, ์ ๋ฌธ์ ํ๋จ์ด๋ ์ ์กฐ์ฌ์ ์ต์ ๋ผ๋ฒจ์ ๋์ ํ์ง ์์ต๋๋ค.