title: A pilot study of Octreotide LAR vs. octreotide tid for pain and quality of life in chronic pancreatitis.
abstract: BACKGROUND
  Chronic abdominal pain is the most difficult management issue in patients with chronic pancreatitis. Recently, a long-acting depo-formulated version of octreotide has been developed that can be given as a once monthly intramuscular injection, Octreotide LAR(R) (O-LAR) rather than as a thrice daily subcutaneous injection (octreotide short-acting, O-SA).
  
  
  OBJECTIVE
  To see if O-LAR is similar in efficacy to O-SA in the treatment of painful chronic pancreatitis in a small open-label, unblinded pilot study.
  
  
  METHODS
  Seven advanced chronic pancreatitis patients with daily, severe abdominal pain who had previously responded to O-SA were recruited from the pancreas clinics of the University of Florida and monitored for one month on O-SA and for four months while on O-LAR. Each patient served as his/her own control as this was a paired data set.
  
  
  METHODS
  1) Daily VAS scores; 2) daily morphine equivalents; 3) monthly health related quality of life chronic pancreatitis surveys; 4) daily diaries of work/pleasurable activities missed or hospitalization/Emergency Department visits.
  
  
  RESULTS
  Average daily VAS scores for patients during O-SA therapy were 4.50+/-2.28 and during the fourth month of O-LAR therapy, 3.86+/-2.11, difference -0.64+/-0.80 (P=0.078). Average daily morphine equivalents were not dissimilar at 124.3+/-177.3 mg during O-SA therapy and 131.6+/-194.3 mg during O-LAR therapy; difference 7.3+/-17.5 mg P=0.310. Health related quality of life chronic pancreatitis scores were not significantly changed when moving from O-SA to O-LAR. Adverse events were rare.
  
  
  CONCLUSIONS
  Octreotide LAR(R) may be a reasonable substitute for tid octreotide in treating chronic pancreatitis pain. Further, larger studies would be useful to better characterize the role of Octreotide LAR(R) in the management of chronic pancreatitis pain.
authors.affiliation: Department of Medicine, Division of Gastroenterology, University of Florida, Gainesville, FL, USA.
authors.forename: John G
authors.initials: JG
authors.lastname: Lieb
authors.forename: Jonathan J
authors.initials: JJ
authors.lastname: Shuster
authors.forename: Douglas
authors.initials: D
authors.lastname: Theriaque
authors.forename: Cheryl
authors.initials: C
authors.lastname: Curington
authors.forename: Miriam
authors.initials: M
authors.lastname: Cintrón
authors.forename: Phillip P
authors.initials: PP
authors.lastname: Toskes
mesh_terms: D015746:Abdominal Pain / Q000188:drug therapy* / Q000209:etiology; D000328:Adult; D000368:Aged; D003692:Delayed-Action Preparations / Q000008:administration & dosage; D004334:Drug Administration Schedule; D005260:Female; D005765:Gastrointestinal Agents / Q000008:administration & dosage; D006801:Humans; D007273:Injections, Intramuscular; D007279:Injections, Subcutaneous; D008297:Male; D008875:Middle Aged; D015282:Octreotide / Q000008:administration & dosage*; D050500:Pancreatitis, Chronic / Q000150:complications / Q000188:drug therapy*; D010865:Pilot Projects; D011788:Quality of Life
chemical_list: D003692:Delayed-Action Preparations; D005765:Gastrointestinal Agents; D015282:Octreotide