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Chronic PancreatitisPhase 1NCT01452217

Non-invasive MRI to Quantify the Effect of Secretin on Pancreatic Blood Flow and Perfusion in Healthy Volunteers

A Phase 1 study testing Secretin in people with Chronic Pancreatitis, run by University of Nottingham at 1 site in United Kingdom.

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

Alterations in pancreatic blood have been implicated in pancreatic inflammation and pain. Several modalities have been used to assess pancreatic blood flow although some of these methods are invasive, use ionising radiation or intravenous contrast media. Read more about this study

Who is it for?
Ages 18 to 75 years, men onlyHealthy volunteers can take part
Conditions the study is for
Chronic Pancreatitis
What is being tested?
Secretin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited Kingdom
Study dates
Sep 2010to Oct 2011
Phase
Phase 1
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 to 75 years
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male
  • Healthy
  • Able to give informed consent

Who cannot join

  • Current illness
  • Contraindications to magnetic resonance imaging

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • University of Nottingham

    Nottingham, Nottinghamshire, NG7 2UH

Other trials in United Kingdom

About this study

Official title: The Use of Non-invasive MRI to Quantify the Effect of Secretin on Pancreatic Blood Flow and Perfusion in Healthy Volunteers

Alterations in pancreatic blood have been implicated in pancreatic inflammation and pain. Several modalities have been used to assess pancreatic blood flow although some of these methods are invasive, use ionising radiation or intravenous contrast media. This is the first study to utilise non-invasive magnetic resonance imaging to quantify flow within arteries supplying the pancreas and pancreatic perfusion is response to secretin stimulation.

Read the detailed description

Background An alteration in pancreatic blood flow may be important in a number of clinical conditions. Reduction of blood flow is seen in patients with acute and chronic pancreatitis and the quantification of perfusion may be useful in the management of pancreatic malignancy and assessment of pancreatic transplants. Unfortunately, the measurement of pancreatic blood flow is technically difficult due to the anatomical location of the organ and complex blood supply.

The pancreas receives its blood supply from a rich plexus of arteries but the foremost arterial supply arises from the splenic and pancreaticoduodenal arteries, both superior and inferior.

Various methods have been used in an attempt to quantify the blood flow but all have potential drawbacks. The use of endoscopic and laparoscopic methods are invasive as is the use of intravenous contrast media. Furthermore, the use of computed tomography exposes patients to ionising radiation.

As the arterial supply to the pancreas is complex, measuring single artery flow does not provide an accurate measure of perfusion. Furthermore, as some of the named branches supplying the arteries are secondary or tertiary branches of more major vessels, narrow arterial diameter precludes accurate radiological measurement. Arterial Spin Labelling (ASL) magnetic resonance imaging (MRI), on the other hand is a validated technique allowing accurate measurement of visceral perfusion.

Transient physiological changes occur in pancreatic blood flow secondary to increased demands such as eating. Changes can also be induced pharmacologically using pancreatic stimulating agents, such as secretin. This naturally occuring peptide is produced within the S cells of the proximal small bowel mucosa. It causes an increase in bicarbonate secretion by the duct cells of the pancreas and biliary tract via an oxygen dependant cyclic AMP mediated pathway. Secretin has been used previously to assess alterations in blood flow and is used clinically in the assessment of sphincter of Oddi dysfunction in conjunction with magnetic resonance cholangiopancreatography.

Aims and Hypothesis This pilot study aims to evaluate the MRI techniques of measuring pancreatic perfusion and blood flow at rest and during secretin stimulation in healthy volunteers, prior to an evaluation in the chronic pancreatitis patient group.

Experimental protocol and methods Volunteers will be recruited from advertisements placed on designated University of Nottingham notice boards. All volunteers will complete a questionnaire of abdominal symptoms, Hospital anxiety and depression scale (HAD) and the patient health questionnaire 15 (PhQ15). Each volunteers will attend the 1.5T Brain and Body Imaging centre on the University of Nottingham Campus for all study evaluations.

Following an overnight fast a baseline MRI scan will be undertaken. Volunteers will then receive 1 IU/kg of secretin (Sanochemia Pharmazeutika AG, Wien, Germany) via the intravenous route over 3 minutes.

The volunteers will then be scanned again at 5, 10, 20, 30 and 40 min following the stimulus.

MRI scanning will be carried out on the Philips 1.5T Achieva MRI scanner located in the Brain and Body Imaging Centre University of Nottingham. The volunteers will be placed supine in the scanner with a receiver body coil wrapped around the abdomen. All image analysis will be carried out using commercial and/or in house packages.

Outcome measures at baseline and following secretin stimulation:

  1. Pancreatic perfusion
  2. Superior mesenteric artery blood flow
  3. Gastroduodenal artery blood flow
  4. Hepatic artery blood flow
  5. Splenic artery blood flow
Being tested
Secretin
Keywords
Pancreas, Chronic pancreatitis, Perfusion, Blood flow, Magnetic resonance imaging
Medical subject headings
Pancreatitis, Chronic

What participants receive

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

  • SecretinDrug

    Secretin 1 IU/kg over 3 min

Study groups in NCT01452217
Study groupRoleWhat they receive
SecretinExperimentalNot described
Receives: Drug: Secretin

What is being measured

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

  1. Pancreatic perfusion

    Overall perfusion of the pancreas

    Measured: 0, 5, 10, 20, 30 and 40 min

Secondary outcomes (4)
  1. Superior mesenteric artery blood flow

    Blood flow in the superior mesenteric artery

    Measured: 0, 5, 10, 20, 30 and 40 min

  2. Gastroduodenal artery blood flow

    Blood flow in the gastroduodenal artery

    Measured: 0, 5, 10, 20, 30 and 40 min

  3. Hepatic artery blood flow

    Blood flow in the hepatic artery

    Measured: 0, 5, 10, 20, 30 and 40 min

  4. Splenic artery blood flow

    Blood flow in the splenic artery

    Measured: 0, 5, 10, 20, 30 and 40 min

Timeline

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

  1. First posted14 Oct 2011 (estimated)
  2. Study startSep 2010
  3. Primary completionSep 2011
  4. Study completionOct 2011

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 1
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01452217
Sponsor's protocol ID
D/07/2010
Status last verified
Oct 2011
First submitted
10 Oct 2011
Last updated
14 Oct 2011
Results posted
No
Data monitoring committee
No

Publications

  • Delrue L, Blanckaert P, Mertens D, Van Meerbeeck S, Ceelen W, Duyck P. Tissue perfusion in pathologies of the pancreas: assessment using 128-slice computed tomography. Abdom Imaging. 2012 Aug;37(4):595-601. doi: 10.1007/s00261-011-9783-0.

    PubMed 21811851
  • Tsushima Y, Kusano S. Age-dependent decline in parenchymal perfusion in the normal human pancreas: measurement by dynamic computed tomography. Pancreas. 1998 Aug;17(2):148-52. doi: 10.1097/00006676-199808000-00006.

    PubMed 9700945
  • Ishida H, Makino T, Kobayashi M, Tsuneoka K. Laparoscopic measurement of pancreatic blood flow. Endoscopy. 1983 May;15(3):107-10. doi: 10.1055/s-2007-1021480.

    PubMed 6223807
  • Lewis MP, Lo SK, Reber PU, Patel A, Gloor B, Todd KE, Toyama MT, Sherman S, Ashley SW, Reber HA. Endoscopic measurement of pancreatic tissue perfusion in patients with chronic pancreatitis and control patients. Gastrointest Endosc. 2000 Feb;51(2):195-9. doi: 10.1016/s0016-5107(00)70417-2.

    PubMed 10650267
  • Bali MA, Metens T, Denolin V, De Maertelaer V, Deviere J, Matos C. Pancreatic perfusion: noninvasive quantitative assessment with dynamic contrast-enhanced MR imaging without and with secretin stimulation in healthy volunteers--initial results. Radiology. 2008 Apr;247(1):115-21. doi: 10.1148/radiol.2471070685. Epub 2008 Feb 21.

    PubMed 18292476
  • Hacki WH. Secretin. Clin Gastroenterol. 1980 Sep;9(3):609-32. No abstract available.

    PubMed 7000396
  • Bize PE, Platon A, Becker CD, Poletti PA. Perfusion measurement in acute pancreatitis using dynamic perfusion MDCT. AJR Am J Roentgenol. 2006 Jan;186(1):114-8. doi: 10.2214/AJR.04.1416.

    PubMed 16357388
  • Hirota M, Tsuda M, Tsuji Y, Kanno A, Kikuta K, Kume K, Hamada S, Unno J, Ito H, Ariga H, Chiba T, Masamune A, Satoh K, Shimosegawa T. Perfusion computed tomography findings of autoimmune pancreatitis. Pancreas. 2011 Nov;40(8):1295-301. doi: 10.1097/MPA.0b013e31821fcc4f.

    PubMed 21705954
  • Cuthbertson CM, Christophi C. Disturbances of the microcirculation in acute pancreatitis. Br J Surg. 2006 May;93(5):518-30. doi: 10.1002/bjs.5316.

    PubMed 16607683
  • Foitzik T, Eibl G, Hotz HG, Faulhaber J, Kirchengast M, Buhr HJ. Endothelin receptor blockade in severe acute pancreatitis leads to systemic enhancement of microcirculation, stabilization of capillary permeability, and improved survival rates. Surgery. 2000 Sep;128(3):399-407. doi: 10.1067/msy.2000.107104.

    PubMed 10965310
  • Drewes AM, Krarup AL, Detlefsen S, Malmstrom ML, Dimcevski G, Funch-Jensen P. Pain in chronic pancreatitis: the role of neuropathic pain mechanisms. Gut. 2008 Nov;57(11):1616-27. doi: 10.1136/gut.2007.146621. Epub 2008 Jun 19.

    PubMed 18566105
  • Terrace JD, Paterson HM, Garden OJ, Parks RW, Madhavan KK. Results of decompression surgery for pain in chronic pancreatitis. HPB (Oxford). 2007;9(4):308-11. doi: 10.1080/13651820701481497.

    PubMed 18345310
  • Heverhagen JT, Wagner HJ, Ebel H, Levine AL, Klose KJ, Hellinger A. Pancreatic transplants: noninvasive evaluation with secretin-augmented mr pancreatography and MR perfusion measurements--preliminary results. Radiology. 2004 Oct;233(1):273-80. doi: 10.1148/radiol.2331031188.

    PubMed 15454624

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Secretin in people with Chronic Pancreatitis, run by University of Nottingham at 1 site in United Kingdom.

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 3 inclusion and 2 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 14 Oct 2011. 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 United Kingdom. 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Pancreatic perfusion (time frame: 0, 5, 10, 20, 30 and 40 min). 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 NCT01452217, which also lists 13 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 14 Oct 2011.

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