Cystic Fibrosis Clinical Trial
— MUCO-PNNOfficial title:
Functional and Phenotypic Characteristics of Blood Neutrophils in Cystic Fibrosis
The purpose of this prospective study is to analyze function and phenotype of blood neutrophils in cystic fibrosis patients and the impact of Pseudomonas aeruginosa chronic infection, treatment with CFTR modulators and acute exacerbation on blood neutrophils phenotype and function.
Status | Recruiting |
Enrollment | 130 |
Est. completion date | October 2024 |
Est. primary completion date | July 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Patient over the age of 18 who is not under legal protection - Patients with CF according to the diagnostic criteria of the Cystic Fibrosis Foundation including: - 15 patients with severe mutation but not chronically infected with PA and not treated with lumacaftor / ivacaftor - 15 patients homozygous phe508del, chronically infected with PA and not treated with lumacaftor / ivacaftor - 15 patients homozygous phe508del, chronically infected with PA and treated with lumacaftor / ivacaftor - 15 hospitalized patients for respiratory exacerbation - 40 patients initiating Ivacaftor-Tezacaftor-Elexacaftor treatment. - No change in baseline treatment for 15 days (including antibiotic treatment). - Patient affiliated to a social security system - Free, informed and written consent, dated and signed by the patient and the investigator, at the latest on the day of inclusion and before any action required by the study. Exclusion Criteria: - Informed consent impossible to obtain - Involvement in an interventional research protocol in the previous 3 months if exclusion directive was given in this protocol. |
Country | Name | City | State |
---|---|---|---|
France | Cochin hospital, AP-HP | Paris |
Lead Sponsor | Collaborator |
---|---|
Assistance Publique - Hôpitaux de Paris | Institut National de la Santé Et de la Recherche Médicale, France |
France,
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Hayes E, Pohl K, McElvaney NG, Reeves EP. The cystic fibrosis neutrophil: a specialized yet potentially defective cell. Arch Immunol Ther Exp (Warsz). 2011 Apr;59(2):97-112. doi: 10.1007/s00005-011-0113-6. Epub 2011 Feb 11. — View Citation
Heijerman HGM, McKone EF, Downey DG, Van Braeckel E, Rowe SM, Tullis E, Mall MA, Welter JJ, Ramsey BW, McKee CM, Marigowda G, Moskowitz SM, Waltz D, Sosnay PR, Simard C, Ahluwalia N, Xuan F, Zhang Y, Taylor-Cousar JL, McCoy KS; VX17-445-103 Trial Group. Efficacy and safety of the elexacaftor plus tezacaftor plus ivacaftor combination regimen in people with cystic fibrosis homozygous for the F508del mutation: a double-blind, randomised, phase 3 trial. Lancet. 2019 Nov 23;394(10212):1940-1948. doi: 10.1016/S0140-6736(19)32597-8. Epub 2019 Oct 31. Erratum In: Lancet. 2020 May 30;395(10238):1694. — View Citation
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Laval J, Touhami J, Herzenberg LA, Conrad C, Taylor N, Battini JL, Sitbon M, Tirouvanziam R. Metabolic adaptation of neutrophils in cystic fibrosis airways involves distinct shifts in nutrient transporter expression. J Immunol. 2013 Jun 15;190(12):6043-50. doi: 10.4049/jimmunol.1201755. Epub 2013 May 20. — View Citation
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McKeon DJ, Condliffe AM, Cowburn AS, Cadwallader KC, Farahi N, Bilton D, Chilvers ER. Prolonged survival of neutrophils from patients with Delta F508 CFTR mutations. Thorax. 2008 Jul;63(7):660-1. doi: 10.1136/thx.2008.096834. No abstract available. — View Citation
Meijer L, Nelson DJ, Riazanski V, Gabdoulkhakova AG, Hery-Arnaud G, Le Berre R, Loaec N, Oumata N, Galons H, Nowak E, Gueganton L, Dorothee G, Prochazkova M, Hall B, Kulkarni AB, Gray RD, Rossi AG, Witko-Sarsat V, Norez C, Becq F, Ravel D, Mottier D, Rault G. Modulating Innate and Adaptive Immunity by (R)-Roscovitine: Potential Therapeutic Opportunity in Cystic Fibrosis. J Innate Immun. 2016;8(4):330-49. doi: 10.1159/000444256. Epub 2016 Mar 18. — View Citation
Moriceau S, Kantari C, Mocek J, Davezac N, Gabillet J, Guerrera IC, Brouillard F, Tondelier D, Sermet-Gaudelus I, Danel C, Lenoir G, Daniel S, Edelman A, Witko-Sarsat V. Coronin-1 is associated with neutrophil survival and is cleaved during apoptosis: potential implication in neutrophils from cystic fibrosis patients. J Immunol. 2009 Jun 1;182(11):7254-63. doi: 10.4049/jimmunol.0803312. — View Citation
Moriceau S, Lenoir G, Witko-Sarsat V. In cystic fibrosis homozygotes and heterozygotes, neutrophil apoptosis is delayed and modulated by diamide or roscovitine: evidence for an innate neutrophil disturbance. J Innate Immun. 2010;2(3):260-6. doi: 10.1159/000295791. Epub 2010 Mar 10. — View Citation
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* Note: There are 44 references in all — Click here to view all references
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Quantification of blood low density neutrophils in cystic fibrosis (CF) | Quantitative flow cytometric evaluation of neutrophil membrane markers that differ according to whether they are :
mature neutrophils : CD16high, CD15high, CD33high, CD10high or Low density neutrophils (LDG) : CD16low, CD15neg, CD33 neg, CD10 neg. Comparison of neutrophil membrane markers profile in CF patients versus control blood-donors. |
Through study completion, an average of 1 year | |
Primary | Transcriptomic analysis of blood neutrophils in cystic fibrosis (CF) | Transcriptomic analysis of blood neutrophil proinflammatory or immunomodulatory potential.
Comparison of transcriptomic blood neutrophil profile in CF patients versus control blood-donors. |
Through study completion, an average of 1 year | |
Primary | Effector function analysis of blood neutrophils in CF. | Comparison of effector function analysis of blood neutrophils of CF patients versus control blood-donors. | Through study completion, an average of 1 year | |
Primary | Phagocytosis potential of blood neutrophils in CF. | Comparison of phagocytosis potential of blood neutrophils of CF patients versus control blood-donors. | Through study completion, an average of 1 year | |
Primary | Survival/apoptosis balance analysis in CF | Survival / apoptosis balance analysis : (PCNA localization) in CF patients blood neutrophils versus control blood-donors. | Through study completion, an average of 1 year | |
Secondary | Quantification of blood low density neutrophils in CF vs other chronic inflammatory disorders. | Quantitative flow cytometric evaluation of neutrophil membrane markers that differ according to whether they are:
mature neutrophils : CD16high, CD15high, CD33high, CD10high Low density neutrophils (LDG) : CD16low, CD15neg, CD33 neg, CD10 neg. Comparison of neutrophil membrane markers profile in CF patients versus patients with other chronic inflammatory disease (eg. Rheumatoid arthritis, inflammatory bowel disease). |
Through study completion, an average of 1 year | |
Secondary | Quantification of blood low density neutrophils in CF according to different clinical situations. | Quantitative flow cytometric evaluation of neutrophil membrane markers.
At stable state: presence or absence of airway chronic infection with PA whether or not patients are treated Ivacaftor-Lumacaftor At beginning of exacerbation or after antibiotic treatment. Before or after Ivacaftor-Tezacaftor-Elexacaftor treatment |
Through study completion, an average of 1 year | |
Secondary | Transcriptomic analysis of blood neutrophils in CF according to different clinical situations. | Transcriptomic analysis of blood neutrophil proinflammatory or immunomodulatory potential.
At stable state: presence or absence of airway chronic infection with PA whether or not patients are treated Ivacaftor-Lumacaftor At beginning of exacerbation or after antibiotic treatment. Before or after Ivacaftor-Tezacaftor-Elexacaftor treatment |
Through study completion, an average of 1 year | |
Secondary | Effector function analysis of blood neutrophils in CF according to different clinical situations. | Effector function analysis of blood neutrophils:
At stable state: presence or absence of airway chronic infection with PA whether or not patients are treated Ivacaftor-Lumacaftor At beginning of exacerbation or after antibiotic treatment. Before or after Ivacaftor-Tezacaftor-Elexacaftor treatment |
Through study completion, an average of 1 year | |
Secondary | Phagocytosis potential of blood neutrophils in CF according to different clinical situations. | Phagocytosis potential analysis of blood neutrophils in CF:
At stable state: presence or absence of airway chronic infection with PA whether or not patients are treated Ivacaftor-Lumacaftor At beginning of exacerbation or after antibiotic treatment. Before or after Ivacaftor-Tezacaftor-Elexacaftor treatment |
Through study completion, an average of 1 year | |
Secondary | Survival/apoptosis balance analysis in CF according to different clinical situations. | Survival / apoptosis balance analysis (PCNA localization):
At stable state: presence or absence of airway chronic infection with PA whether or not patients are treated Ivacaftor-Lumacaftor At beginning of exacerbation or after antibiotic treatment. Before or after Ivacaftor-Tezacaftor-Elexacaftor treatment. |
Through study completion, an average of 1 year |
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