REVIEW Long acting somatostatin analogue: Clinical potential for gastrointestinal disease ABSTRACT: Nam·e sl,matosrntin ts founJ throughout the gastromtesunal tra ct and has a wide \'artery oi hiolog1cal actions. Nevcrthell•ss, its short b1ol,)g1cal half-life and limitt ·d sw bility ne cessitate tts u se, ta continuous parenteral infu sion ar:d, thu s, ltmm tts chcrarwutt c usefulness The development of long actrng sommost·ttin ,rnalogu es h ave lcaJ to a rc-cxaminatton of the thcrapeutk useful- O('ss of somatosrattn in gastrointcstin,11 discast' Somatostntin analogues appear most hcnefic1al tn prcvcn ttng symptoms assrn:tated with neurocndocnnc tumours . In aJditton, case con trollt·d stu dies exist to d emonstrate soma tostattn analogue cffcctn·e ncss m treatment of gastrrnntcstinal hemnrrhagt. •, pa ncreati c fi ~tu la , pan - crcatitis, short b owel syndrome and dumpi ng syndrome Can J Gastrocntcrol 1989;3(2):77-81 Key Words: Diarrhea, Dwnp111,1pyndrnme. Fi~tttla . Hemorr hage. ln!t!.11inc, PanLrc- aum, Shon /mud .1ynJrome, S0macos1a1111 analo,t!tte L'analogue a cffet prolonge de la somatostatinc: Potentiel cliniquc pour les maladies gastrointestinales RESUME: Le so matostatine n,Htm·llt· sc trouve tout le long de 1.1 ,·otc gastroin- tcstinalc ct ses ac ti ons biolog iqu cs sont multiples ct variccs Neanmoins, sa dcm1- l"IC h1olog1que courte t'l ,a smh1lttt' l11nitee rcqutt•rt qu'on l'uttlise en perfusion parcntalc con ti nue, cc qui limite son ucilit<'. · rherapcuttquc La misc au pnmt d'a nalogucs ;1 effct prolonge a conduit ,1 une rcexamen de l'uttlm• chcrapt •uttquc de la somatostattnL' dam lcs affecttons gnstromtcst111all's. Les analogues de In sommos tatinc sc mhlcnt parriwlicrcmcnt utilcs dan s la prewntion d e~ sy mptomcs assoc1cs aux tumcur, ncurocndocrincs De plus. Jes crudes de c;is co nt rl)lccs 0nt demontrc l'cfficac1tc de, analogue s de la somatosuuinc dans le craitemenr Jes hcmorragic~ gastromtcstinales, des fistulcs pancreattques. de s p,mcn\ime,. du syndrome dl • l'intcs ti n cou rt et du synd rome dt· chassc Drp,1rrmenr oj Mt'J1s1ne. IJ11•1,1cm of Uc11 1rur1Hcrnlu,:y. Unn·rrnr~ o/ Alhcrra. EJ111m11C1n , Albatt1 Corrr,f,onJrn,t' anJ rr/mnr, Dr RrdwrJ ,\ fl'dornk. l llllL'r.,HJ of All1r1 !<1 , Drf>,1rlml'tll u/ Mcd1nnr. D11·1\1011 of ( ,asr1·r1r111rrn/o~:v ~Jl) Rohrrr .\lru·wn Re,rarch Rwld111.I(. EJnwnron. Albt:rra ToG 2C2 Tdcphon<' 141.1 l14 l2 o<NJ Re(e11·ecl /or /iult/1,,111011 Fdm«IT)' 20, Jt)/N A,,c111t:d Fehrn<1n 22. Jl)Hll N \II\J ..;t1~JAJ()..,l:\ll'-l°'1\t'YCIIC 1erradl'tapepttde tuund thmugh· ,,u1 dw gastrom u•,1111,1 1 tr:t (l ,Hid pnn· < rt'.1, m 1wrn· l·ndml!, ,111J muco,.11 ncu- r11endt1tr1 111· , ell, ( 1-'i ). Somato,ta ttn is lt1un,l 1n tlw higlw, t n11Kt't1lrat1011 m gas- 111c tundus .md .1111 rum, pancrt·as ,ind d tll 1dcnu m m dent'iisi ng n 1nl'l'r1tratt 0ns frt,m pn1x1 m,1l to distal small 111t est1tw .md rarl'I\' 111 th e ,olon (6) S<1ma tos ta1i n- 14 1, rlw pr111t1pal 1<1rm rek•ast'd from tlw ,tom,Kh S0m. 1t< 1st,11m rde,hl'd fr(lm ,m;11l 11nt·,11n.il mut'osa ts prl dommanth st1111a111,tati 11 ·l~. "hneas 11111<mmucnsal small 1111c,1mal neur.tl structures It is pn• dnm1 11,mtly sl1ma111sta11 11- H. As om• of clw rl'gul.11,,ry pepudt·s of the d1gesut·e trau. It h,1s ,I "1de ,· .mety o f b1ologic.1l act1u11, It h.1, ht'l'll ,hnwn ro rt·dun· 1nrt.·,1111.d mt1til1t~ t 7 ')). enll'ric hormonl' rt•lc<1sL' ( lJ. I L'J. ,plandrnic blo(1dOcm 1111. and 111 h 1h1t sl'c rt·tton by tlw g,1s1m .111tru m J ll) , pancrt·as (lJ) ,rn d tlw small ,llld l.1£1.!l' llltl''i[ll1l'S( 1,,17) T ht.· ,t· propl'rtll's of n;ltlVL' scHnato,l.1· tin ha\'l' rtsltlted 111 tts hdng cons1dt·red ,ts an .111t1d1arr hl·,il .1gent ,int:L' Jl.) 7 \ wht·n Rra:cau and tolleagu,•, I I S) 1su· l.1ted, 'l'qlll'nccd .111d synthl',tZl'd tlw pep tide in ,111 hm 11w lwpoth,1lamit t·x· trac 1. fhe pl'pttdl' ".1, 1111ttallv ll'rnwd gmwth horn1<11w 1ek.1st' mhih1t1nJ,? f,ll · tor tCiHRil'l h11t 1s no\\ l'lllllmPnh \,; m ,wn ,ls snma1os1;11111 77
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REVIEW
Long acting somatostatin analogue: Clinical potential for
gastrointestinal disease
ABSTRACT: Nam·e sl,matosrntin ts founJ throughout the gastromtesunal tract and has a wide \'artery oi hiolog1cal actions. Nevcrthell•ss, its short b1ol,)g1cal half- life and limitt·d swbility necessitate tts use, ta continuous parenteral infusion ar:d, thus, ltmm tts chcrarwuttc usefulness The development of long actrng sommost·ttin ,rnalogues have lcaJ to a rc-cxaminatton of the thcrapeutk usefulO('ss of somatosrattn in gastrointcstin,11 discast' Somatostntin analogues appear most hcnefic1al tn prcvcnttng symptoms assrn:tated with neurocndocnnc tumours. In aJditton, case controllt·d studies exist to d emonstrate somatostattn analogue cffcctn·encss m treatment of gastrrnntcstinal hemnrrhagt.•, pancreatic fi~tu la , pancrcatitis, short bowel syndrome and dumping syndrome Can J Gastrocntcrol 1989;3(2):77-81
L'analogue a cffet prolonge de la somatostatinc: Potentiel cliniquc pour les maladies gastrointestinales
RESUME: Le somatostatine n,Htm·llt· sc trouve tout le long de 1.1 ,·otc gastrointcstinalc ct ses actions biologiqucs sont multiples ct variccs Neanmoins, sa dcm1-l"IC h1olog1que courte t'l ,a smh1lttt' l11nitee rcqutt•rt qu'on l'uttlise en perfusion parcntalc conti nue, cc qui limite son ucilit<'.· rherapcuttquc La misc au pnmt d'analogucs ;1 effct prolonge a conduit ,1 une rcexamen de l'uttlm• chcrapt•uttquc de la somatostattnL' dam lcs affecttons gnstromtcst111all's. Les analogues de In sommostatinc scmhlcnt parriwlicrcmcnt utilcs dans la prewntion d e~ symptomcs assoc1cs aux tumcur, ncurocndocrincs De plus. Jes crudes de c;is cont rl)lccs 0nt demontrc l'cfficac1tc de, analogues de la somatosuuinc dans le craitemenr Jes hcmorragic~ gastromtcstinales, des fistulcs pancreattques. des p,mcn\ime,. du syndrome dl• l'intcsti n court et du syndrome dt· chassc
tor tCiHRil'l h11t 1s no\\ l'lllllmPnh \,; m ,wn ,ls snma1os1;11111
77
FHlORAI-..
Clinically. nat1\·e ,omacosratin has heL'n most effective as an anudiarrheal 111 hormonally mediated secremry diarrheas. including those produced by rumours secreting vasoact1vc inresnn;il pept1JL' !VIPoma) ( 19). 5-hydroxytryp[()phan (carcino1d syndrome) (20-11). g:1smn (Zollmgt'r-Ellison syndrome) and calct ton1n l mewst:1t1c islet cell carcinoma) 124) In non hormonally mediated diarrhea , howc\'er, it has heen less dfenivt' fmlmg to alter diarrhea mducL'd h\ cholera toxin ( 15)
Although nauve ,om.nosmun ha, hccn sho\\'n m reduce smol Olttput 111 a pancnt with short bowel syndrome. this may han' oc.:urrcd because M)m,1tostat111 ,upprcs,cd the clevatl'd hlood levels ot glu cagon. gastromrcsunal polypeptide and pancreatic polypepmk (16) Unforrun::1tcly, 1he short h1olog1cal half-life ( ! to
3 mm,) and limned srabil1ty of n:lll\'e sommo,wrin nL'Ces,natt' it~ use via connnuous parenteral mfw,ion .ind thus limit its therapeuuc usl'f ulnes,
Recently, an ocmpcptidc long .irnng somatost:uin anal1,guc. SMS 2L"'I t>95. (Sandostatin; Sando: Incl has hL'en synrhcs1:cd fr..,m thL' b1olog1cally act1n' pharmacophone(Figure 11(27) Begin nmg \\'ith the 1solnnon of nat1\·e ,omam statm- Hand the kno\\'IL'dgc 1)1 the mini ma! fragment nt't'ded for h 1ological acuon, scrvernl long actmg somaro,tatln annlogues hnve bt'l'n ,vnd1l',i:ed ( 2~).
although the most l'ffoct1\·e rL'mams SMS 201-995
This annlogue conrn111s [)-phenylalanine at one L'nd nnd an alcohol denva tiw of threo111nc at the other. making it res1stanr to en:ymauc dL'grada11011 ThL' substituuon of P-tryptciphan for L ·tryp tophan in po,1t1on t{ furth~·r reduce, deg radation and L'nhances the long ,Kting
NATIVE SOMATOSTATIN
H2N-i ALA j- GLY - CYS - LYS
effect This agL'nt has heen shown to he more potent and longer acting than native somatoscann and can he adm1111Stered subcutaneously (27-29)
In \'llro, SMS 201-995 has an anusccretory cfkct on intestmal fluiJ and dec· tmlytl' trnm,pnrt similar to that of native ,omatosrann ( 29) SMS 201-995 mhibns elcctrnge111c anion secretion and stimulates neutral sodium and chloride absorption and thus has a porenual for a potent anud1arrheal agent (29). The antidiarrhenl effect of SMS 201-995 1s approximately 60 times more potent than nanve somatosratin and docs nor exhibit the rachyphrlaxsi, seen wnh n.llt\'l' somatostatln.
POTENTIAL GASTROINTESTINAL THERAPEUTIC
APPLICATIONS Cl1n1cal ,tudies with somat<btatin
analogue have. for thL' mo:.t part. beL'n anecdotal. ,rnd doublc-blmJ prospective studies are requ1rL'd hL'fore the full ther· apeunc benefit of this analogue can be dctermmed Although S1'.1S 201-995 does not t.kmonstrate the rnchyphylaxs1s seen \\·1th native somatostat1n, recent rL'porrs have described rdap~e of dwrrhca wccb LO mon ths aftL'r mnial rL's· ponse to S1'.L 201-995 ( 30. 31) This appart'nt dc,ens1ti:auon or down regu-1:Hton m SMS 201-995 remains w be explained Diarrhea due to ncuroendocrine tumours: Somatosrnun analogue. SMS 201-995. has been used successfu lly to control symptons. including diarrhea, of a vast array of neuroL'ndocrinc tumours of thl' gut In ga~tnnomas, c1rculanng gastrin k\'els arc rL'duced, significant sup· prcss1on of aCtd secrcuon caki:s place and diarrhea ts markedly reduced In some
cases, rt'gression o t hepauc metas1asc, haw beL'n idt'ntified ( H-,5)
In \1·atL'ry d1arrhc;i, hypokalc1111a , achlnrhydn;i ,yndrnme. vasoacuve 111testinal pcpude and 11, homologue. peprndmL' hisudme 1sokuc11w, arl' markl·Jly reduced with the l' hangL' in nt't intc,unal secreuon to net absorption and a significant rL'duction 111 "tool weight .ind frequency, with resultant 111dept'ndl·nce from mtravenou, fluid requ1rcml'nts ( H. ,6-41 ). In only one 11f these casL',ol Vlf>omas did a decren,c 111 d1.irrhe:1 continue dL'spice increa,cd va,oacnw 111tt·,t111;il pcpude kvel, 111 the face n( further metastases ( >6)
In the carcinrnd syndrome, ,omatosta· un analogt.:c has ,1gn1hcantly redlKL'd hmh flush ing, unstable angina and diarrhea hy rL'duc111g nrculnung ,l'rotonin and kin1n ll'\els ( > 1.42-44) During mL'ta,tasnc medullnry carcm11ma ot thl' thyr01J, somat1btatm analogue allc\·t,Ht·d the symptoms of nu,hing and diarrhea associated w1th cle\·.ttcd calrnon111 le\' eb hut did not altL'r the course of the disease I 15.44.45)
Somatrn,tatin analogue has also pro· duced nn euglyccmic scatt' in insulmoma and glucagonoma syndromes I>> I In iht glucagonoma syndrome. somatostaun analogue therapy ha, bet'n used to amc liorate the migrawry nccrolyuc dcrmauus () ))
In summary, somatostann anal1it:ue which can bl' adm111is1ered tn an outpanent on an mtcrmment h:i-,1,. ,, prming invaluable 111 patten ts with rare. ncu· rot..'ndocnne ,ecn'ting tumour, b} con· trolling the life thrcatcnmg dinrrh1.:a and vasomotor respOlbt's Furthermore, the p1,tcntial ex1'r.., for ir, u,e 11Hraopcr· an\'clv during ,urg1cal ma111pularion of ncuroendocnne tumour, when large
dnsc dependen t fashion (6 n The treat· me1H of pancrc,1tic cutaneous fistulas
\\ ith somntostatin analogues h;1s been
rcpnned m nine patients (64-69 I In cnch
of th ese cases. fistu la output \\'as cnn,istcncly reduced during somatostat1n an,1·
logul' adm1n1strarinn Nevertheless, Ill
1)nly three of these patten ts \\'as it docu
mL'ntcd that fistulas closL·d as a consc
quenccof Mnnatostmin analogue.1dm1n-1,trarion
Pa n ereatis: In a controlled. douhlc
hlind, multiccntn' trial. nat ive sc1ma111·
,tmin in the treatment cl acute 1>ancrc;u1r1s dcmc,nstrarcd no nd\'antage in
uther the cour,e of the disease or thL' 111orcal1ry (70) Recently, somatostatin
an;.ilogucs h:1ve heen identified to h,\\ L' a cytoprotecti\ e effect on pancrcauc,
bronchial and gastric epithel ium 17 1 ). The mechanism leading to tbsue pro·
tcction h:is nor been clarified. a lthc,ugh
srnhili:ati\,n of cell membrane as well a,
changes 111 amm11 acid sequence mav play
a role
Snmatostalln analogues c1dmin1stcred prior ro varic,us forms of experimental
pancremitis hnve improved survl\·al.
ckmonstrated improved hiswlogical
hl.'a ling ,rnd reduced scrum levels of
lipase and amylase ( 72- 7+ ). Once again,
the mccharnsm of this effect during pan
crcntitis is unkno\\'n hu t may relate to 111hibit1on of pancreatic en:ymc sccrc
uon . Recently. Conwny and colleagues
17 5) demonstrated in dogs th at som:no
statln analogu e produces ;1 prnmpc and
Somatostatin analogue: Therapeutic potential
sustained dccrensc in pancrcauc bloodnow Wi th ou t altCnlllOn 111 systemic hcmodynamics
Sommostaun an.1logucs do nm pres
ently have a role in the 1rea1mc'n1 of acutl' pancreati tis outsidc the clinical research
centre. Neverthcless. their role in preventing pancrea t ius following endo
scopic or surgical manipula11on of the
pancreas remnins to he deter111111cd
S h o r t b owe l syndro m e: A lthoul,!h Dharmsathaphorn ,ind colk:11,!UL''> 17())
demonstrated. as ea r ly as 1982. that narive somawsrntin decreases diarrhea
in patients with short bowel ,yndrome.
only a single case report of a child exist,
to demonstrate the use of long nctlllg ,omatostatin in concrollmg ilenl output
ns a consequence of the short bowel syndrome (77)
Dumping sy ndro m e : S ince M)m;1to
stat1n inh ibits vasonctive pcptidcs and
amines and prevents massive Ouid secre
non into the intestinal lumen. the poten ·
rial therapeu uc effect fo r the treatment oi dumpmg syndrome exists.
The effect of sommostatin analogue Ill I() patients with retractable early clump-
111g and seven patients with severe late
dumpini,: has been examined (78.79). ln
hoth carly and late dumpers, sornatosta· tin anal11guc improved symptoms and
hrearh hydrogen excretion , indicating
,lowing oi gastrointestinal motility. U n
f<)rtunaccly, the J1mimhing rate of gas
inc surgery for peptic ulcer disease may m,1ke a large, double-blmd study to
c'xaminc the effect of ,omarostatin analogue on gnstric dumping difficult to
carry o u t
ACKNOWLEDGEMENT S: Dr l·eJorak 1, a rc'c1r1ent of che Alberta Hernagc foun· Jation fo r Medica l Research cl1111cal mvc,ti· g,llor',htp Th 1, work 1~ supponcd hy i1 grant from the Alberta Hc'nwgc Foundat1lln for Mc'd1C,1l Re,carch The author expresses his ,1ncere appreciarion for che expert st·cretarwl as,1stance of Mr~ Michel Pollard .
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10 Bl,,,,m S~ Somaw,umn and rhl' gu1 Ga,rn1e111er,1loin 1978.75 145-7
I I S;1m11wg:ird H, Tv<l,·n C,. Thul111 I , h1m,m L. L'dl'n R Eff.:ct of ,omawst,llin 1111 r.:l,!ional ,pland1nic blood flow, 111 man Ang1ocrnrhic ,tudie, Acta Ch1r Scand 1980,500(Suppl l l.7 1-1
I 2 Bk1om SR. Moruml'r CH, Thorner MD lnhib1t1nn of g,1'tnn ,rnd g,1,rnc aod ,.:at·uun hy growth hormone rcll'a,t' mh1h11ing horn1<HW L:1nce1 19i9 .11. I 106-ll
14 Gu:111d;1lini S. Kachm JF, Smirh Pl . F1L'ld M In \'itm l'ffen, pf spmatll,talln on 1,111 tram,porr m rnhb111ntl's1i1w Am J Phv~H,I 1980:2 ~8 G67 74
15 Dharmasarhaphorn K. Racu,t'll L. Bmder HI. D<,bhms JW Somawst,1t1n ,umulatcd ,odium ch lomfr .1h,<>rpttPn 111 the rnhhn ileum Ga,tro,·11t,·n,k,gy llJ80,7K l'i59-6'i
16 Dh,mna,athaphllrn K. Sherwm RS. Dohhin, JW S0maw,1.1t111 mh1b11, ilu1d ,ecr.:tion in the rat JCJUnum G,ts1n1rntcmlogv 1980.7K 1554-8
17 [)h,1rm;1smhaphurn K. R,KU,t'n l. .
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I 11\'c,1 1980,M:8 I 1-20. 18 Bra:eau P. Vale \V, Burgu~ R. ct al
19 Ruskc,n,· A. Rene E. Chavvi,11lc)A Effect ol somatostann on diarrhea ,m<l 011 ,mall 1nt,·,t mal warcr :mJ el.:ctrolytc trnn,p1ll t in a patient with pancrealll chnkra. Ott.{ Di, ~ci 1982.27 459 o6
2l1 Qua1ri1111'.1. Basil1,c11 G, Conte D, Born1111 A, Bardclla MT. B1nnch1 PA Effl'ct, of sc,matosraun 1nfuston m ftiur pancnt, wah m,il1gnant carc1no1d syndrome Am J Ga,trocntcwl 1983.78 149-51
Z I. Da\'1, GR, Camp RC. Rask111 P, Kreis OJ. Ffr.:ct t1f som,noswtm 1nfus1t1n on Jl'Juna l water and l'lcctmlyre tran:,pon 111 a p,lttl'lll ,, 1th secretory diarrhea due to carc1notd ,yndroml' Ga,tm· c·nterology 198(1;78 H6-9
22 Dharma,athaphorn K. Sherwin RS. Cara land S,Jaffe B. Dohbm,J S1,maro,tal1n mh1h11, dtarrhl'il Ill thc• car11101d s\ndronw Ann lntl'rn ~kd 1%0:92.68-9
23 Kvol, LK. Moerr.:1 CG. O'Conrwll MJ Tr,•,11111cnr nf1he malif.!nant carc11101d ,yndn1mc N rngl J Med 1986. 315.66 3-6
24 Kvol, LK. Buck M. \ loencl C'G. c1 al Treatment of met,hl,\llc 1,kt cc·ll carcino1n.1 with a s(,mtlt<lstaun analt1guc
!"MS 101-995) Ann lnrern ML'd 19H7, IL17 lh2-K
l'i Molla AM. Gyr K. Bardhan PK, Molla A Effect of intravcnou, somato,raun on ~wol output 111 diarrhea due w nbrio cholera Gm,rrocn terology 19R4:87 :84 5-7
26 Dharmasathaphc,rn K. Gorel1rk F". Sherwin RS. CatalnnJ S. Dobbin, J\\' Somato:..taun decrease, d1arrh.:a 111
27 Bauer W. Bnnl'r U. Docpfnl'r \V, ct al SMS 201 -995 A \'erv p,nent and sclccnvc ocwpl'plldc ,rnalogue o l ,omatostatin with prolongl'd action L1fl' Su 191'2. 11 11, 3-40
21-> L1mher1, SW, Uttcrlmdcn r. Zu 1dcrw1jkJ. VNkum I. NL'ufdd M. Del l\1:0 E Tlw l·ffc,t, of ,1 long·,1Cllng ,nm.1tostat1n analogu,· on growth hormn,w secrl'llon 111 rat and man In Lahril' F. cd 7th lnternauonal Congrl':,s ,,f l:.nd,1cnnolt1gv Amsterdam l:.xet.'rpta l-.bl1ca. 19841-\47
29 Rnhl'rt, WG. Fc<lorak RN. Chang EB In vitn1 dfoc:t, of till' lnng :1C1ing s!lm,Hnstarm ,malngue St-.1S 201-99'i on .:lectwlvt.: 1ran,port hy the rabhn ill'um Gastn><'ntcrnlngy 1988,9,t 114 i-5ll
clec1rolvr,• transport 111 a pauent wirh ,ecrctory d1arrh.:a Gut 1986 27 5Kl-6
> l K!l.:I: A. Kra,•n:1111 M. (~yr K l'I al E,capc of thc• rc,pon,c· to a lnni.: ,Kling ,omaro,1.11in analllguc ISMS 201-9951111 pancnts \\'1th VIP\1ma G;1,rro,•nr,·n,logv 1987;92 52i-"ll
H Eriksson B. Ohcri.: K. Andn"<1n T. Lundq\ 1,t G, \\'idc L, WilanJer t Trcatmen1 nf 111al1gnnnr cndocrnw pancre,Hic tum,,r, \\'ith ,1 llC\\
B Snuquet JC. S,1ssol,1, Ci. h,richon). Champct1,·r I', Partcn,ky C Ch,1vv1allc· IA Cl111iral and hormonal effl'crs nf a li,ng-,1cting ,,1m;1t1l'it,1t111 analogul' m pannentK endocrine 1umour, and 111 carc1nl>1J ,ynJronw Cann:r 1987.59 16'i4-60
l4 \/1111k Al. T,;.11 :,T, Mnau.iri AR. Chl'ung P. Eck h;i u,er FE '1rn11,11mrat1 n an,, lnguc tSMS 201-995) 111 tlw management nf ga,1n1.:nll'ropancr.:,111c wmours and d1,1rrh\>C:1 ,yndmm,·, Am J lvkd 198(1.81 2) 40
16 W11l1nrn, G, Andcr,un JV. William, SJ Blood SR. Cl1111cal t'\'alua11on ofSMS WI-995 Long t.:rm tre:nmcnt in gut ncun1.:ndocnnc wmour,, efficary ,,f oral admin1strauon. and poss1hll' usc II\ nc,n-tumoural rn,1ppropnall' TSH hypcrsl·crenon Acta Endocnnol lll87.Z861S11ppl1.l6-16.
,7 "mith SS. Shulm,rn DI. ODom1n TM. ct al Watery diarrhl'a hvp,,kalcm1a. achlorhvdna syndrome 111 an infom Effec1 oi the.: long-acrmg ,!lmm,is1aun :rnaloguc SMS 201 995 <•n rhc disease and lincar growth J Pediatr Ga,trocntcwl Nurr 1987 ;6· 710-6
18 "an tangelo WC. O'Domio TM. K1111 JG, Seven no G. K rcjs OJ Pancrl'atic cholera ,yndromc Effect of a synth,'t1c somato~tatin analog on intl'sunal water
and 1011 transport. Ann Intern Med 198'i .10'\ ,6Vi
W W<1od SM. Kracn:lin /\IE . Adrian TE. Bloom SR Treatment of p;1t1l'llls \\'ith pancreatic cndncmw rumours using~ Ill'\\' long-ncnng ,omato,tat in :-inalogue sympmmatic and peptidl' r.:,pluise, Gut 1985,lt, 4 ~8 44
40. Mat<1n PN, O'Dom11> TM. Howl' BA et al Effect of a long ,Kring ,omato,tatin ;111alogue ISMS 201-lJlJ5) 111,1 pat1e11t with pannem1c chol,·r:i N E:ngl J 1'kd L98'i. ll2 17-21
4 1 Kr;wn:lin ME:. Cheung .J L. \\\,od '-,M. Cm DH, Bloom SR. Lting term tre~rment of ;1 VIPnma \\'1th
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42 K ,·,11, I K 1'h·ra,r,111c carnnrnd rt1n1<>rs ,ind rh, c,mnu1,l ,vndr,1nw A wk, tl\'l' r.:,·1,'\\ of ch,•muthl·r,1pv .111d hormonal therapy Am I t-.kd 19',(,,'\l 49-'i,
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40 I cd<>rak Ri\' Allen SI E:tf,·ct ,,t "1ma1,"1.111n .111,1l, 1g ( S\ IS .!l~i -<N'i 1,m 1n ,·1, <> mte,11n.1I fluid rrnn,port 1n rat, ,\ l11n1tl'll ,v,renm dkc1 D11! D1, ~c1 (in pn'" I
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49 Hun:1kl'r l ', \ Sup,·ru Furg., A Zachm;mn M Del PP:,, l. ',}rnwrl111l! [) , Pradl'r r\ . l::!t,·ch ,,t th~ long adm!,! ,um,ll,"t,llm ,1nalugu,· ::,M'-, .ll.)J .l)l)=j 111 an mt.mt \I nh mtr,1, t.1hlt d1arrh,,,·,1 I kh Pal'dl,llr Acta 19h1',-! l ll~"\.l)
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61 C.1111hna RP :,..:l'\ illl· R Ballantvne ( iH, t'l ,11 S0111,llo,t;i11n and .11nluf.!, I.Kk ,plan,h111, ,·,1s,,ru1btr1Cll\'l l'lf,·ci- 111 ,l11al·,the11:,·d pig, J '-urf.! R,•, 19'>7 .4 1 4'\1,9
62 \\',rng X\1 Tr,·,h.unJI C,,n).i1L1 M. Cnghlan JI' ""'!:f.!111' HA S, ,m,ll,"t,1t1n <'<'ntralh 111h1hn, ,·,1supn·"111 '<'t'retu111 during h,1l'morrhagl' Hr.1111 Rl', l9s7 -rn, 1,N, 2l',
b 3 J..:onrurt·k SJ R1lski J. Ja\\'urek J, T.1sl,•r J. ~ch,,lh A\' Cump,1r,1011 of "'m,Ho,t,ll111 ,md n, h1ghh po1,·1ll hl',n· and <1tt,1pept1d,· .1n,1lui.:, on ,.,,,.-r111l' .tnd ,·ndncnnl' p,111cr,·ari.: "'cr,·11011 Pn,, S,,, hp Bml \.bl 1%,'i Js7 241-9
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75 C,m,1.1\' DR. D1um111 Ci, l'r111: RA Th, dt,·ct of ,,,m,11,1't,lll11 ,tnalogut' (S~IS l1~J -lJ<Vi) t1n p,111cr,·a11l hlc",d tlt1\\' ~urg,·r\ J\)~1'. IL1-J 1,~24- >U
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