Clinical trial NCT05923372: Evaluation of the DALY on a Cohort of Patients With Indolent Systemic Mastocytosis
Official title: Evaluation of the Disability-Adjusted Life Year (DALY) on a Cohort of Patients With Indolent Systemic Mastocytosis (ISM)
Study type: OBSERVATIONAL
Overall status: RECRUITING
Conditions: Mastocytosis, Indolent Systemic
Keywords: DALY
Mastocytosis
Quality of life
Lead sponsor: University Hospital, Toulouse
Sponsor class: OTHER
First posted: 2023-06-28
Enrollment: 160
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: OTHER
Sampling method: NON_PROBABILITY_SAMPLE
Study population: All patients with MSI, included in the CEREMAST register and who have given their consent to participate

Brief summary: Mastocytosis is a group of pathologies characterized by the accumulation and/or clonal proliferation of abnormal mast cells in various organs. The impact of mastocytosis on health, quality of life, the psychoaffective sphere and on professional life constitutes the burden of this disease. The DALY is the disability-adjusted life expectancy, which takes into account the life expectancy and the number of years "lost" due to illness, disability or early death. Due to the major impact of the disease this study evaluates the DALY in indolent mastocytosis patients

Detailed description: Mastocytosis is a group of pathologies characterized by the accumulation and/or clonal proliferation of abnormal mast cells in various organs. Mastocytosis is a rare disease with an estimated prevalence of between 1/20,000 and 1/40,000. The impact of mastocytosis on health, quality of life, the psychoaffective sphere and on professional life constitutes the burden of this disease. This is probably important but very little studied so far. The DALY is the disability-adjusted life expectancy. It is calculated by subtracting from life expectancy the number of years "lost" due to illness, disability or early death.

Ignorance of the disease and diagnostic error cause significant distress in patients. In our clinical experience, the impact of the disease on the personal, social, and professional life of our patients is major. It therefore seems important to better specify the impact on the quality of life and the costs of this pathology. The main objective of this study is to evaluate the DALY in indolent mastocytosis patients from the CEREMAST reference center of the Toulouse University Hospital.

Eligibility criteria: Inclusion Criteria:

* Having expressed their non opposition to participate in this study
* Diagnosed with indolent mastocytosis and cared for in the CEREMAST reference center in Toulouse

Exclusion Criteria:

* Patient with a form of mastocytosis other than MSI
* Patient under legal protection, guardianship or curatorship

Primary outcomes:
measure: DALY
timeFrame: Day 1
Secondary outcomes:
measure: Quality of life based on the MC QOL scale
timeFrame: Day 1
measure: Frequency of symptoms
timeFrame: Day 1
Other outcomes:
Locations:
city: Toulouse
country: France
facility: Centre de Référence des Mastocytoses, Service de Dermatologie, Hôpital Larrey, CHU Toulouse
state: Haute-Garonne
Study officials:
affiliation: CHU Toulouse
name: Cristina BULAI LIVIDEANU, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Siebenhaar F, Fortsch A, Krause K, Weller K, Metz M, Magerl M, Martus P, Church MK, Maurer M. Rupatadine improves quality of life in mastocytosis: a randomized, double-blind, placebo-controlled trial. Allergy. 2013 Jul;68(7):949-52. doi: 10.1111/all.12159. Epub 2013 Jun 4.
citation: Siebenhaar F, von Tschirnhaus E, Hartmann K, Rabenhorst A, Staubach P, Peveling-Oberhag A, Wagner N, Martus P, Carter MC, Metcalfe DD, Church MK, Maurer M, Weller K. Development and validation of the mastocytosis quality of life questionnaire: MC-QoL. Allergy. 2016 Jun;71(6):869-77. doi: 10.1111/all.12842. Epub 2016 Feb 15.
citation: van Anrooij B, Kluin-Nelemans JC, Safy M, Flokstra-de Blok BM, Oude Elberink JN. Patient-reported disease-specific quality-of-life and symptom severity in systemic mastocytosis. Allergy. 2016 Nov;71(11):1585-1593. doi: 10.1111/all.12920. Epub 2016 Jun 23.
citation: Jennings SV, Slee VM, Zack RM, Verstovsek S, George TI, Shi H, Lee P, Castells MC. Patient Perceptions in Mast Cell Disorders. Immunol Allergy Clin North Am. 2018 Aug;38(3):505-525. doi: 10.1016/j.iac.2018.04.006.
citation: Jennings S, Russell N, Jennings B, Slee V, Sterling L, Castells M, Valent P, Akin C. The Mastocytosis Society survey on mast cell disorders: patient experiences and perceptions. J Allergy Clin Immunol Pract. 2014 Jan-Feb;2(1):70-6. doi: 10.1016/j.jaip.2013.09.004. Epub 2013 Dec 3.
citation: Nowak A, Gibbs BF, Amon U. Pre-inpatient evaluation on quality and impact of care in systemic mastocytosis and the influence of hospital stay periods from the perspective of patients: a pilot study. J Dtsch Dermatol Ges. 2011 Jul;9(7):525-32. doi: 10.1111/j.1610-0387.2011.07638.x. Epub 2011 Mar 24. English, German.
citation: Sanchez-Munoz L, Morgado JM, Alvarez-Twose I, Matito A, Garcia-Montero AC, Teodosio C, Jara-Acevedo M, Mayado A, Mollejo M, Caldas C, Gonzalez de Olano D, Escribano L, Orfao A. Diagnosis and classification of mastocytosis in non-specialized versus reference centres: a Spanish Network on Mastocytosis (REMA) study on 122 patients. Br J Haematol. 2016 Jan;172(1):56-63. doi: 10.1111/bjh.13789. Epub 2015 Oct 12.
citation: Jackson CW, Pratt CM, Rupprecht CP, Pattanaik D, Krishnaswamy G. Mastocytosis and Mast Cell Activation Disorders: Clearing the Air. Int J Mol Sci. 2021 Oct 19;22(20):11270. doi: 10.3390/ijms222011270.
citation: Valent P, Horny HP, Escribano L, Longley BJ, Li CY, Schwartz LB, Marone G, Nunez R, Akin C, Sotlar K, Sperr WR, Wolff K, Brunning RD, Parwaresch RM, Austen KF, Lennert K, Metcalfe DD, Vardiman JW, Bennett JM. Diagnostic criteria and classification of mastocytosis: a consensus proposal. Leuk Res. 2001 Jul;25(7):603-25. doi: 10.1016/s0145-2126(01)00038-8.
citation: Afrin LB. Mast cell activation disease and the modern epidemic of chronic inflammatory disease. Transl Res. 2016 Aug;174:33-59. doi: 10.1016/j.trsl.2016.01.003. Epub 2016 Jan 18.
citation: Hermouet S, Bigot-Corbel E, Gardie B. Pathogenesis of Myeloproliferative Neoplasms: Role and Mechanisms of Chronic Inflammation. Mediators Inflamm. 2015;2015:145293. doi: 10.1155/2015/145293. Epub 2015 Oct 11.