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Neoplasm, HepaticNCT00677781

Impact of Microparticles on Postoperative Complications in Surgical Patients

An observational study of Neoplasm, Hepatic and Pancreatic Neoplasms, run by University of Bern at 1 site in Switzerland.

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

Microparticles are cellular fragments which are released actively or passively under conditions of inflammation and stress. The impact of surgical operations on quantity and quality of microparticles remains unknown. Read more about this study

Who is it for?
Ages 18 years and older
How many people
108 participants
Where
1 siteSwitzerland
Study dates
Feb 2008to Jan 2010
Phase
Observational
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

Study population: Patients undergoing cardiac or hepatobiliary or colorectal surgery. Setting: university hospital.

Who may be able to join

  • Patients undergoing cardiac or abdominal operations with a minimum expected operative time of 2 hours

Who cannot join

  • Laparoscopic operations
  • emergency operations

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • Department of visceral and transplant surgery, Bern University Hospital

    Bern, 3010

Other trials in Switzerland

About this study

Official title: The Impact of Microparticles on Inflammatory Responses During Visceral and Cardiac Surgery

Microparticles are cellular fragments which are released actively or passively under conditions of inflammation and stress. The impact of surgical operations on quantity and quality of microparticles remains unknown. In this observatory study we investigate quantitative and qualitative aspects of microparticles during cardiac and abdominal operations.

Medical subject headings
Liver Neoplasms, Pancreatic Neoplasms, Colorectal Neoplasms

What participants receive

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

Study groups in NCT00677781
Study groupRoleWhat they receive
F64We investigate a cohort of 20 consecutive patients undergoing hepatic or pancreatic surgery (Pilot study)

What is being measured

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

  1. Postoperative morbidity

    Measured: 30 days

Secondary outcomes (2)
  1. Hospital stay

    Measured: 30 days

  2. Mortality

    Measured: 30 days

Timeline

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

  1. First posted15 May 2008 (estimated)
  2. Study startFeb 2008
  3. Primary completionDec 2008
  4. Study completionJan 2010

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
108 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00677781
Sponsor's protocol ID
KEK251_07
Status last verified
Sep 2011
First submitted
8 May 2008
Last updated
7 Sep 2011
Results posted
No
Data monitoring committee
No

Publications

  • Diamant M, Tushuizen ME, Sturk A, Nieuwland R. Cellular microparticles: new players in the field of vascular disease? Eur J Clin Invest. 2004 Jun;34(6):392-401. doi: 10.1111/j.1365-2362.2004.01355.x.

    PubMed 15200490
  • Piccin A, Murphy WG, Smith OP. Circulating microparticles: pathophysiology and clinical implications. Blood Rev. 2007 May;21(3):157-71. doi: 10.1016/j.blre.2006.09.001. Epub 2006 Nov 22.

    PubMed 17118501
  • Fujimi S, Ogura H, Tanaka H, Koh T, Hosotsubo H, Nakamori Y, Kuwagata Y, Shimazu T, Sugimoto H. Activated polymorphonuclear leukocytes enhance production of leukocyte microparticles with increased adhesion molecules in patients with sepsis. J Trauma. 2002 Mar;52(3):443-8. doi: 10.1097/00005373-200203000-00005.

    PubMed 11901317
  • Nieuwland R, Berckmans RJ, McGregor S, Boing AN, Romijn FP, Westendorp RG, Hack CE, Sturk A. Cellular origin and procoagulant properties of microparticles in meningococcal sepsis. Blood. 2000 Feb 1;95(3):930-5.

    PubMed 10648405
  • Ogura H, Kawasaki T, Tanaka H, Koh T, Tanaka R, Ozeki Y, Hosotsubo H, Kuwagata Y, Shimazu T, Sugimoto H. Activated platelets enhance microparticle formation and platelet-leukocyte interaction in severe trauma and sepsis. J Trauma. 2001 May;50(5):801-9. doi: 10.1097/00005373-200105000-00005.

    PubMed 11371835
  • Soriano AO, Jy W, Chirinos JA, Valdivia MA, Velasquez HS, Jimenez JJ, Horstman LL, Kett DH, Schein RM, Ahn YS. Levels of endothelial and platelet microparticles and their interactions with leukocytes negatively correlate with organ dysfunction and predict mortality in severe sepsis. Crit Care Med. 2005 Nov;33(11):2540-6. doi: 10.1097/01.ccm.0000186414.86162.03.

    PubMed 16276178
  • Boulanger CM, Scoazec A, Ebrahimian T, Henry P, Mathieu E, Tedgui A, Mallat Z. Circulating microparticles from patients with myocardial infarction cause endothelial dysfunction. Circulation. 2001 Nov 27;104(22):2649-52. doi: 10.1161/hc4701.100516.

    PubMed 11723013
  • Heloire F, Weill B, Weber S, Batteux F. Aggregates of endothelial microparticles and platelets circulate in peripheral blood. Variations during stable coronary disease and acute myocardial infarction. Thromb Res. 2003 Jun 1;110(4):173-80. doi: 10.1016/s0049-3848(03)00297-4.

    PubMed 14512078
  • Morel O, Hugel B, Jesel L, Lanza F, Douchet MP, Zupan M, Chauvin M, Cazenave JP, Freyssinet JM, Toti F. Sustained elevated amounts of circulating procoagulant membrane microparticles and soluble GPV after acute myocardial infarction in diabetes mellitus. Thromb Haemost. 2004 Feb;91(2):345-53. doi: 10.1160/TH03-05-0294.

    PubMed 14961163
  • Morel O, Jesel L, Freyssinet JM, Toti F. Elevated levels of procoagulant microparticles in a patient with myocardial infarction, antiphospholipid antibodies and multifocal cardiac thrombosis. Thromb J. 2005 Oct 11;3:15. doi: 10.1186/1477-9560-3-15.

    PubMed 16219103
  • van der Zee PM, Biro E, Ko Y, de Winter RJ, Hack CE, Sturk A, Nieuwland R. P-selectin- and CD63-exposing platelet microparticles reflect platelet activation in peripheral arterial disease and myocardial infarction. Clin Chem. 2006 Apr;52(4):657-64. doi: 10.1373/clinchem.2005.057414. Epub 2006 Jan 26.

    PubMed 16439610
  • Ardoin SP, Shanahan JC, Pisetsky DS. The role of microparticles in inflammation and thrombosis. Scand J Immunol. 2007 Aug-Sep;66(2-3):159-65. doi: 10.1111/j.1365-3083.2007.01984.x.

    PubMed 17635793
  • Andoh A, Tsujikawa T, Hata K, Araki Y, Kitoh K, Sasaki M, Yoshida T, Fujiyama Y. Elevated circulating platelet-derived microparticles in patients with active inflammatory bowel disease. Am J Gastroenterol. 2005 Sep;100(9):2042-8. doi: 10.1111/j.1572-0241.2005.50381.x.

    PubMed 16128950
  • Chamouard P, Desprez D, Hugel B, Kunzelmann C, Gidon-Jeangirard C, Lessard M, Baumann R, Freyssinet JM, Grunebaum L. Circulating cell-derived microparticles in Crohn's disease. Dig Dis Sci. 2005 Mar;50(3):574-80. doi: 10.1007/s10620-005-2477-0.

    PubMed 15810645
  • Jimenez JJ, Jy W, Mauro LM, Horstman LL, Soderland C, Ahn YS. Endothelial microparticles released in thrombotic thrombocytopenic purpura express von Willebrand factor and markers of endothelial activation. Br J Haematol. 2003 Dec;123(5):896-902. doi: 10.1046/j.1365-2141.2003.04716.x.

    PubMed 14632781

Questions about this trial

What is this clinical trial studying?

An observational study of Neoplasm, Hepatic and Pancreatic Neoplasms, run by University of Bern at 1 site in Switzerland.

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 1 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 7 Sep 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 Switzerland. 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.

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?

Postoperative morbidity (time frame: 30 days). 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 NCT00677781, which also lists 16 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 Sep 2011.

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