A Non-Interventional National Study in Pediatric Patients With Unexplained Enlarged Spleen
OPPUS
An Observational National Pediatric Study on Prevalence of Unexplained Splenomegaly
OPPUS
An Observational National Pediatric Study on Prevalence of Unexplained Splenomegaly
Sponsor study identifier
Secondary identifiers
REGISTRY · ICTRP
observational
60
1 country
40
Study Start
June 30, 2021
Actual (reported)Primary Completion
November 25, 2024
Actual (reported)Study Completion
November 25, 2024
Actual (reported)Primary Objective: To assess prevalence of Gaucher disease (GD) diagnosed in pediatric patients presenting with unexplained splenomegaly (SMG) after exclusion of first intention-diagnoses (e.g. portal hypertension, haematological malignancy, hemolytic anemia, infection) based on clinical examination and routine biological tests (full blood count, reticulocytes, liver tests, abdominal ultrasound, Coombs test and Epstein Barr virus serology). Secondary Objectives:
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
November 25, 2024
Actual (reported)Click on a node to explore related trials.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
April 12, 2021
Actual (reported)April 15, 2021
Actual (reported)June 30, 2021
Actual (reported)November 25, 2024
Actual (reported)November 25, 2024
Actual (reported)Percentage of patients diagnosed with GD among enrolled patients
Diagnosis of GD based on deficient β-glucocerebrosidase activity in peripheral blood leukocytes or other nucleated cells, or genetic analysis.
Up to 3 months after inclusion
Rate of each identified disease category at the end of the study among enrolled patients
Up to 3 months after inclusion
Rate of patients with no final diagnosis at the end of the study among enrolled patients
Up to 3 months after inclusion
Number of patients based on specific char. (clinical, lab, genetics)
Up to 3 months after inclusion
Patient under 18 year-old with unexplained SMG (SMG defined as a palpable spleen, already known or discovered for the first time) and who has undergone tests to eliminate obvious causes of SMG including: hemolytic anemia, hematological malignancy, portal hypertension, infectious disease associated with SMG
Investigational Site Number 2500036
Amiens, 80054, France
Investigational Site Number 2500014
Angers, 49933, France
Investigational Site Number 2500034
Argenteuil, 95107, France
Investigational Site Number 2500039
Bayonne, 64100, France
Investigational Site Number 2500015
Besançon, 25030, France
Investigational Site Number 2500003
Bordeaux, 33000, France
Investigational Site Number 2500038
Brest, 29609, France
Clinical Sciences & Operations
Sanofi
60 participants (actual enrollment reported by the registry).
First Submitted
April 12, 2021
First Posted
April 15, 2021
Study Start
June 30, 2021
Actual (reported)Contact the study team to confirm eligibility.
Investigational Site Number 2500026
Caen, 14033, France
Investigational Site Number 2500018
Chambéry, 73000, France
Investigational Site Number 2500009
Clermont-Ferrand, 63000, France
Investigational Site Number 2500008
Colombes, 92700, France
Investigational Site Number 2500028
Créteil, 94000, France
Investigational Site Number 2500006
Dijon, 21079, France
Investigational Site Number 2500010
Gleizé, 69400, France
Investigational Site Number 2500031
Jossigny, 77600, France
Investigational Site Number 2500040
La Rochelle, 17000, France
Investigational Site Number 2500007
La Tronche, 38700, France
Investigational Site Number 2500030
Limoges, 87042, France
Investigational Site Number 2500001
Lyon, 69008, France
Investigational Site Number 2500032
Mantes-la-Jolie, 78200, France
Investigational Site Number 2500005
Marseille, 13005, France
Investigational Site Number 2500027
Meaux, 77100, France
Investigational Site Number 2500002
Montpellier, 34090, France
Investigational Site Number 2500021
Nantes, 44000, France
Investigational Site Number 2500019
Nice, 06200, France
Investigational Site Number 2500022
Nîmes, 30029, France
Investigational Site Number 2500016
Paris, 75012, France
Investigational Site Number 2500013
Perpignan, 66000, France
Investigational Site Number 2500035
Poissy, 78300, France
Investigational Site Number 2500011
Poitiers, 86000, France
Investigational Site Number 2500029
Reims, 51100, France
Investigational Site Number 2500023
Rennes, 35203, France
Investigational Site Number 2500037
Roubaix, 59056, France
Investigational Site Number 2500024
Rouen, 76031, France
Investigational Site Number 2500017
Saint-Priest-en-Jarez, 42270, France
Investigational Site Number 2500004
Strasbourg, 67200, France
Investigational Site Number 2500033
Toulouse, France
Investigational Site Number 2500020
Tours, France
Investigational Site Number 2500025
Valenciennes, 59300, France
Investigational Site Number 2500012
Vandœuvre-lès-Nancy, 54500, France
Primary Completion
November 25, 2024
Actual (reported)Study Completion
November 25, 2024
Actual (reported)Last Updated
September 23, 2025
Record last verified: 2025-09
Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org
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Source: ClinicalTrials.gov.
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