NCT01735565

Brief Summary

This is a prospective observational study to determine the point after bone marrow transplant in adults and children at which the neutrophils derived from the transplanted stem cells are competent to form functional neutrophil extracellular traps (NETs). Furthermore, given the importance of platelet function for NET formation, we also plan to examine platelet activation and function as well as the platelet transcriptome using the same clinical samples.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
23

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jun 2012

Longer than P75 for all trials

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2012

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

November 22, 2012

Completed
6 days until next milestone

First Posted

Study publicly available on registry

November 28, 2012

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2014

Completed
2.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2016

Completed
Last Updated

August 11, 2016

Status Verified

July 1, 2016

Enrollment Period

1.7 years

First QC Date

November 22, 2012

Last Update Submit

August 9, 2016

Conditions

Keywords

NET formationneutraphil extracellular trapspost-engraftment immune system

Outcome Measures

Primary Outcomes (1)

  • Post-engraftment maturation of NET formation

    The time to post-engraftment maturation of NET formation capability in PMNs isolated from pediatric and adult patients undergoing bone marrow transplantation will be measured by serial blood sampling/analysis over the course of a year after transplant.

    1 year

Secondary Outcomes (1)

  • Post-engraftment platelet function

    1 year

Study Arms (1)

Post bone marrow transplant

Patients who are undergoing bone marrow transplant, as well as patients who have completed a bone marrow transplant within the previous year.

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who are undergoing bone marrow transplant, as well as patients who have completed a bone marrow transplant within the previous year at Huntsman Cancer Institute and Primary Children's Medical Center will be identified as possible participants.

You may qualify if:

  • Within one year of bone marrow transplant
  • Informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Huntsman Cancer Institute

Salt Lake City, Utah, 84112, United States

Location

Primary Children's Medical Center

Salt Lake City, Utah, 84113, United States

Location

University of Utah

Salt Lake City, Utah, 84132, United States

Location

Related Publications (15)

  • Dinauer MC, Lekstrom-Himes JA, Dale DC. Inherited Neutrophil Disorders: Molecular Basis and New Therapies. Hematology Am Soc Hematol Educ Program. 2000:303-318. doi: 10.1182/asheducation-2000.1.303.

    PMID: 11701548BACKGROUND
  • Brinkmann V, Reichard U, Goosmann C, Fauler B, Uhlemann Y, Weiss DS, Weinrauch Y, Zychlinsky A. Neutrophil extracellular traps kill bacteria. Science. 2004 Mar 5;303(5663):1532-5. doi: 10.1126/science.1092385.

    PMID: 15001782BACKGROUND
  • Nathan C. Neutrophils and immunity: challenges and opportunities. Nat Rev Immunol. 2006 Mar;6(3):173-82. doi: 10.1038/nri1785.

    PMID: 16498448BACKGROUND
  • Fuchs TA, Abed U, Goosmann C, Hurwitz R, Schulze I, Wahn V, Weinrauch Y, Brinkmann V, Zychlinsky A. Novel cell death program leads to neutrophil extracellular traps. J Cell Biol. 2007 Jan 15;176(2):231-41. doi: 10.1083/jcb.200606027. Epub 2007 Jan 8.

    PMID: 17210947BACKGROUND
  • Buchanan JT, Simpson AJ, Aziz RK, Liu GY, Kristian SA, Kotb M, Feramisco J, Nizet V. DNase expression allows the pathogen group A Streptococcus to escape killing in neutrophil extracellular traps. Curr Biol. 2006 Feb 21;16(4):396-400. doi: 10.1016/j.cub.2005.12.039.

    PMID: 16488874BACKGROUND
  • Urban CF, Reichard U, Brinkmann V, Zychlinsky A. Neutrophil extracellular traps capture and kill Candida albicans yeast and hyphal forms. Cell Microbiol. 2006 Apr;8(4):668-76. doi: 10.1111/j.1462-5822.2005.00659.x.

    PMID: 16548892BACKGROUND
  • Bianchi M, Hakkim A, Brinkmann V, Siler U, Seger RA, Zychlinsky A, Reichenbach J. Restoration of NET formation by gene therapy in CGD controls aspergillosis. Blood. 2009 Sep 24;114(13):2619-22. doi: 10.1182/blood-2009-05-221606. Epub 2009 Jun 18.

    PMID: 19541821BACKGROUND
  • Bianchi M, Niemiec MJ, Siler U, Urban CF, Reichenbach J. Restoration of anti-Aspergillus defense by neutrophil extracellular traps in human chronic granulomatous disease after gene therapy is calprotectin-dependent. J Allergy Clin Immunol. 2011 May;127(5):1243-52.e7. doi: 10.1016/j.jaci.2011.01.021. Epub 2011 Mar 3.

    PMID: 21376380BACKGROUND
  • Yost CC, Cody MJ, Harris ES, Thornton NL, McInturff AM, Martinez ML, Chandler NB, Rodesch CK, Albertine KH, Petti CA, Weyrich AS, Zimmerman GA. Impaired neutrophil extracellular trap (NET) formation: a novel innate immune deficiency of human neonates. Blood. 2009 Jun 18;113(25):6419-27. doi: 10.1182/blood-2008-07-171629. Epub 2009 Feb 12.

    PMID: 19221037BACKGROUND
  • Marcos V, Nussbaum C, Vitkov L, Hector A, Wiedenbauer EM, Roos D, Kuijpers T, Krautgartner WD, Genzel-Boroviczeny O, Sperandio M, Hartl D. Delayed but functional neutrophil extracellular trap formation in neonates. Blood. 2009 Nov 26;114(23):4908-11; author reply 4911-2. doi: 10.1182/blood-2009-09-242388. No abstract available.

    PMID: 19965699BACKGROUND
  • Kraemer BF, Campbell RA, Schwertz H, Cody MJ, Franks Z, Tolley ND, Kahr WH, Lindemann S, Seizer P, Yost CC, Zimmerman GA, Weyrich AS. Novel anti-bacterial activities of beta-defensin 1 in human platelets: suppression of pathogen growth and signaling of neutrophil extracellular trap formation. PLoS Pathog. 2011 Nov;7(11):e1002355. doi: 10.1371/journal.ppat.1002355. Epub 2011 Nov 10.

    PMID: 22102811BACKGROUND
  • Clark SR, Ma AC, Tavener SA, McDonald B, Goodarzi Z, Kelly MM, Patel KD, Chakrabarti S, McAvoy E, Sinclair GD, Keys EM, Allen-Vercoe E, Devinney R, Doig CJ, Green FH, Kubes P. Platelet TLR4 activates neutrophil extracellular traps to ensnare bacteria in septic blood. Nat Med. 2007 Apr;13(4):463-9. doi: 10.1038/nm1565. Epub 2007 Mar 25.

    PMID: 17384648BACKGROUND
  • Rondina MT, Brewster B, Grissom CK, Zimmerman GA, Kastendieck DH, Harris ES, Weyrich AS. In vivo platelet activation in critically ill patients with primary 2009 influenza A(H1N1). Chest. 2012 Jun;141(6):1490-1495. doi: 10.1378/chest.11-2860. Epub 2012 Mar 1.

    PMID: 22383669BACKGROUND
  • Rondina MT, Schwertz H, Harris ES, Kraemer BF, Campbell RA, Mackman N, Grissom CK, Weyrich AS, Zimmerman GA. The septic milieu triggers expression of spliced tissue factor mRNA in human platelets. J Thromb Haemost. 2011 Apr;9(4):748-58. doi: 10.1111/j.1538-7836.2011.04208.x.

    PMID: 21255247BACKGROUND
  • Denis MM, Tolley ND, Bunting M, Schwertz H, Jiang H, Lindemann S, Yost CC, Rubner FJ, Albertine KH, Swoboda KJ, Fratto CM, Tolley E, Kraiss LW, McIntyre TM, Zimmerman GA, Weyrich AS. Escaping the nuclear confines: signal-dependent pre-mRNA splicing in anucleate platelets. Cell. 2005 Aug 12;122(3):379-91. doi: 10.1016/j.cell.2005.06.015.

    PMID: 16096058BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

Whole blood

Study Officials

  • Christian Yost, MD

    University of Utah

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 22, 2012

First Posted

November 28, 2012

Study Start

June 1, 2012

Primary Completion

March 1, 2014

Study Completion

July 1, 2016

Last Updated

August 11, 2016

Record last verified: 2016-07

Locations