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AngiodysplasiaPhase 2ANGIOPASNCT02622906

Pasireotide for the Treatment of Gastrointestinal Angiodysplasia in Endoscopic Treatment Failure

A Phase 2 study testing Pasireotide in people with Angiodysplasia, run by Robert Benamouzig at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The angiodysplasias may be responsible for recurrent gastrointestinal bleeding and in some cases bleeding remaining inaccessible to endoscopic treatment. Several observational studies suggest that treatment with somatostatin analogue would reduce transfusion requirements in patients with recurrent bleeding due to… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Angiodysplasia
What is being tested?
Pasireotide
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
24 participants
Where
1 siteFrance
Study dates
Mar 2012to Oct 2015
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Angiodysplasia of the stomach, small intestine or colon confirmed by endoscopy.
  • 6 or more of packed red cells unit transfusion during the 6 months prior inclusion.
  • Failed endoscopic therapy or cons-indication for endoscopic treatment.
  • Patient affiliated to a social security insurance.
  • Age > 18 years.
  • Consent signed by the patient.

Who cannot join

  • Treatment with somatostatin analogue in the 6 months prior to inclusion
  • Symptomatic cholelithiasis
  • Rendu-Osler disease
  • Uncontrolled diabetes (HbA1c > 8%)
  • Breaking of the esophageal varicose veins bleeding older than six months.
  • Patients treated with anti vitamin K at baseline and during the study.
Show all 15Show fewer
  • Patients with (AST, ALT> 2 ULN) and / or total bilirubin > 1.5 ULN.
  • TP < 50%, platelets <75 000/mm3, aPTT> 1.5 times the control
  • Uncontrolled heart disease: myocardial infarction within 6 months, status epilepticus angina, congestive heart failure grade III and NYHA, ventricular tachycardia, ventricular fibrillation, heart block, severe
  • Family medical history of the idiopathic sudden death
  • Syncope like medical history
  • QTcF> 450 ms
  • Metastatic malignancy
  • Pregnant or nursing women, women of childbearing age who have not achieved pregnancy test, women and men of reproductive age without effective contraception
  • Impossible follow for psychological and/or geographical reasons.

Trial locations and contacts

1 site in 1 country.

France1 site
  • Société Française d'Endoscopie Digestive (SFED)

    Paris, 75006

Other trials in France

About this study

Official title: Randomized Phase II Trial Evaluating the Efficiency of Pasireotide for the Treatment of Gastrointestinal Angiodysplasia in Endoscopic Treatment Failure

The angiodysplasias may be responsible for recurrent gastrointestinal bleeding and in some cases bleeding remaining inaccessible to endoscopic treatment. Several observational studies suggest that treatment with somatostatin analogue would reduce transfusion requirements in patients with recurrent bleeding due to angiodysplasia.

No randomized studies are available. The main objective of this study multicenter, prospective, randomized, was to assess the transfusion requirements in patients with recurrent bleeding due to angiodysplasia treated by a new analogue of somatostatin, Pasireotide, versus placebo.

Patients with recurrent gastrointestinal bleeding related to angiodysplasias, endoscopic treatment failure, with a need transfusion at least 6 red blood cells during the 6 months prior to inclusion could be randomized to receive monthly intramuscular injection of Pasireotide 60 mg or placebo for a period of 6 months. Patients were then followed for an additional 6 months after stopping treatment. A test monthly clinical and laboratory was performed during the six months of treatment then quarterly during the six months of surveillance.

Read the detailed description

The angiodysplasias are abnormal communications between dilated capillaries and veins. Their presence in the digestive tract is probably due to venous obstruction associated with smooth muscle contractions. These vascular malformations are not a particularly significant cause of bleeding in elderly patients. The angiodysplasias are responsible for about 1% of upper gastrointestinal bleeding and up to 6% of the lower bleeding. However in case of gastrointestinal bleeding obscures the presence of angiodysplasia was found in 23% of cases through an exploration of the small intestine endoscopic video capsule enteroscopy or double balloon. Some conditions promote the development of angiodysplasias such as kidney failure with a prevalence of 13% in case of bleeding or cirrhosis. The responsibility of aortic stenosis is debated and could be a chance association. On the other hand, are more symptomatic bleeding in case of bleeding disorders, in particular von Willebrand disease.

The first line treatment is based on the destruction of endoscopic lesions by laser, or argon plasma coagulation electrocoagulation. However, these lesions may be inaccessible to endoscopic treatment, when they are too numerous or if patients with severe comorbidities, indicating against invasive endoscopic treatments. Iterative transfusions remain the only possible treatment for a significant proportion of patient which induces frequent hospitalizations, complications related to transfusions and a significant cost.

Hormonal treatments have been tried without success to prevent rebleeding. Anti-angiogenic as thalidomide have been tested in phase II trials in low number of the patients.

Somatostatin is a cyclic peptide secreted by D cells in the gastric and intestinal mucosa, by the cells of the islets of Langerrhans. There are five known somatostatin receptors which when activated by the ligand caused an inhibition of gastric acid secretion, pancreatic and biliary secretions. The somatostatin analogues have different vascular effects documented as downregulation of VEGF expression or decreasing the splanchnic flow.

Thus, the somatostatin analogs can have an effect on the prevention of rebleeding secondary to angiodysplasia by several mechanisms: inhibition of angiogenesis, reduction of splanchnic blood flow, increased vascular resistance and increased platelet aggregation.

Several cohort studies suggest that treatment with somatostatin analogues, octreotide can reduce the need for transfusion in patients with recurrent bleeding due to angiodysplasia. A meta-analysis of these studies, which included 62 patients in total found a relative risk of rebleeding of 0.76 (95% CI: 0.64 to 0.85) and a decrease of 2.2 transfusions (95% : -3.9 to -0.5) between the period before the treatment and the period of treatment with octreotide.

To date, there are no randomized phase III study to suggest the efficacy of somatostatin analogues in the prevention of rebleeding due to angiodysplasia.

Pasireotide is a new analogue of somatostatin which has a higher affinity of Octreotide to like receptors 1, 3 and 5. A preliminary study showed that pasireotide could be effective in the symptomatic treatment of endocrine tumors beyond the octreotide therapy. This superior efficacy of pasireotide compared to Octreotide justifies the evaluation pasireotide in the prevention of rebleeding due to angiodysplasia. Side effects described with the LP pasireotide are the possibility of post prandial hyperglycemia transient dose-dependent. Episodes of intestinal disorders have been reported (diarrhea, nausea, vomiting), but usually require no medicinal treatment and disappearing spontaneously during treatment.

All these data suggests for a randomized study against placebo to establish the efficacy of treatment with pasireotide LP in the prevention of rebleeding due to angiodysplasia. A randomized phase II feasibility study will be conducted to verify the the investigators hypotheis and followed if necessary by a phase III study.

Somatostatin analogs have vascular action that has been shown in other pathologies (gastrointestinal bleeding in patients with portal hypertension). Cohort studies suggest efficacy in reduction of transfusion requirements in patients with gastrointestinal angiodysplasia. In case of failure of endoscopic treatment there is no currently licensed treatment for the prevention of rebleeding in these patients.

The investigators objective is to evaluate the reduction in the number of red blood cells transfused to M6 in patients treated with pasireotide LP or placebo.

Conditions
Angiodysplasia
Being tested
Pasireotide, Placebo
Keywords
Gastrointestinal angiodysplasia, Pasireotide, Gastrointestinal bleeding
Medical subject headings
Angiodysplasia, Gastrointestinal Hemorrhage

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PasireotideDrug

    60 mg per month of the Pasireotide during 6 months

  • PlaceboDrug

    Vehicule injection per month during 6 months

Study groups in NCT02622906
Study groupRoleWhat they receive
PlaceboPlacebo comparator1 injection per month during 6 months of the placebo product
Receives: Drug: Placebo
PasireotideActive comparator1 injection per month during 6 months of the Pasireotide LP (60mg/injection)
Receives: Drug: Pasireotide

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. number of red blood cells transfused

    number of red blood cells transfused at 6 months in patients treated with pasireotide or placebo.

    Measured: at 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Dec 2015 (estimated)
  2. Study startMar 2012
  3. Primary completionMar 2012
  4. Study completionOct 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02622906
Sponsor's protocol ID
2011-002579-40
Acronym
ANGIOPAS
Status last verified
Dec 2015
First submitted
3 Dec 2015
Last updated
7 Dec 2015
Results posted
No
Data monitoring committee
No

Publications

  • Boley SJ, Sammartano R, Adams A, DiBiase A, Kleinhaus S, Sprayregen S. On the nature and etiology of vascular ectasias of the colon. Degenerative lesions of aging. Gastroenterology. 1977 Apr;72(4 Pt 1):650-60.

    PubMed 300063
  • Foutch PG, Rex DK, Lieberman DA. Prevalence and natural history of colonic angiodysplasia among healthy asymptomatic people. Am J Gastroenterol. 1995 Apr;90(4):564-7.

    PubMed 7717311
  • Vreeburg EM, Snel P, de Bruijne JW, Bartelsman JF, Rauws EA, Tytgat GN. Acute upper gastrointestinal bleeding in the Amsterdam area: incidence, diagnosis, and clinical outcome. Am J Gastroenterol. 1997 Feb;92(2):236-43.

    PubMed 9040198
  • Ohmiya N, Yano T, Yamamoto H, Arakawa D, Nakamura M, Honda W, Itoh A, Hirooka Y, Niwa Y, Maeda O, Ando T, Yao T, Matsui T, Iida M, Tanaka S, Chiba T, Sakamoto C, Sugano K, Goto H. Diagnosis and treatment of obscure GI bleeding at double balloon endoscopy. Gastrointest Endosc. 2007 Sep;66(3 Suppl):S72-7. doi: 10.1016/j.gie.2007.05.041.

    PubMed 17709039
  • Chalasani N, Cotsonis G, Wilcox CM. Upper gastrointestinal bleeding in patients with chronic renal failure: role of vascular ectasia. Am J Gastroenterol. 1996 Nov;91(11):2329-32.

    PubMed 8931412
  • Bhutani MS, Gupta SC, Markert RJ, Barde CJ, Donese R, Gopalswamy N. A prospective controlled evaluation of endoscopic detection of angiodysplasia and its association with aortic valve disease. Gastrointest Endosc. 1995 Nov;42(5):398-402. doi: 10.1016/s0016-5107(95)70038-2.

    PubMed 8566626
  • Veyradier A, Balian A, Wolf M, Giraud V, Montembault S, Obert B, Dagher I, Chaput JC, Meyer D, Naveau S. Abnormal von Willebrand factor in bleeding angiodysplasias of the digestive tract. Gastroenterology. 2001 Feb;120(2):346-53. doi: 10.1053/gast.2001.21204.

    PubMed 11159874
  • Pavey DA, Craig PI. Endoscopic therapy for upper-GI vascular ectasias. Gastrointest Endosc. 2004 Feb;59(2):233-8. doi: 10.1016/s0016-5107(03)02539-2.

    PubMed 14745397
  • Junquera F, Feu F, Papo M, Videla S, Armengol JR, Bordas JM, Saperas E, Pique JM, Malagelada JR. A multicenter, randomized, clinical trial of hormonal therapy in the prevention of rebleeding from gastrointestinal angiodysplasia. Gastroenterology. 2001 Nov;121(5):1073-9. doi: 10.1053/gast.2001.28650.

    PubMed 11677198
  • Bauditz J, Lochs H, Voderholzer W. Macroscopic appearance of intestinal angiodysplasias under antiangiogenic treatment with thalidomide. Endoscopy. 2006 Oct;38(10):1036-9. doi: 10.1055/s-2006-944829.

    PubMed 17058171
  • Dabak V, Kuriakose P, Kamboj G, Shurafa M. A pilot study of thalidomide in recurrent GI bleeding due to angiodysplasias. Dig Dis Sci. 2008 Jun;53(6):1632-5. doi: 10.1007/s10620-007-0067-z.

    PubMed 17990111
  • Kurosaki M, Saegert W, Abe T, Ludecke DK. Expression of vascular endothelial growth factor in growth hormone-secreting pituitary adenomas: special reference to the octreotide treatment. Neurol Res. 2008 Jun;30(5):518-22. doi: 10.1179/174313208X289499.

    PubMed 18953743
  • Ludwig D, Terai S, Bruning A, Stange EF. Long-term haemodynamic effects of octreotide on postprandial splanchnic hyperemia in humans: a placebo-controlled echo-doppler study. Aliment Pharmacol Ther. 1999 Aug;13(8):1119-29. doi: 10.1046/j.1365-2036.1999.00583.x.

    PubMed 10468691
  • Szilagyi A, Ghali MP. Pharmacological therapy of vascular malformations of the gastrointestinal tract. Can J Gastroenterol. 2006 Mar;20(3):171-8. doi: 10.1155/2006/859435.

    PubMed 16550261
  • Nardone G, Rocco A, Balzano T, Budillon G. The efficacy of octreotide therapy in chronic bleeding due to vascular abnormalities of the gastrointestinal tract. Aliment Pharmacol Ther. 1999 Nov;13(11):1429-36. doi: 10.1046/j.1365-2036.1999.00647.x.

    PubMed 10571598

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Pasireotide in people with Angiodysplasia, run by Robert Benamouzig at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Dec 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

number of red blood cells transfused (time frame: at 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02622906, which also lists 18 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Dec 2015.

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