Frequency and Characteristics of Pruritus in Patients With Monoclonal Gammopathy (PRURIGAMMA)

August 25, 2020 updated by: University Hospital, Brest

Pruritus is most often secondary to dermatitis but can also occur without skin lesions, it is called pruritus sine materia. The causes of pruritus sine materia are various: haematological (myeloproliferative neoplasia ...), hepatic (cholestasis ...), renal (chronic renal failure, dialysis), endocrine (iron deficiency ...), secondary to drug intake ... or idiopathic when no cause is found.

Gammapathies are among the causes of pruritus sine materia, and as such electrophoresis of serum proteins is usually part of the pruritus assessment to look for monoclonal gammopathy (MGUS, multiple myeloma, Waldenström disease). However, there is very little data on the frequency of pruritus in patients with monoclonal gammopathy and the characteristics of this pruritus. So the aim of this study is to compare the frequency of pruritus between patients with monoclonal gammapathy and controls

Study Overview

Status

Completed

Study Type

Observational

Enrollment (Actual)

281

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Brest, France, 29609
        • CHRU de Brest

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients who had serum protein electrophoresis at Brest CHRU between 2014 and 2017, with and without gammapathy.

Description

Inclusion Criteria for case :

Major patient Realized Serum protein electrophoresis between 2014 and 2017 Hematology follow-up at Brest CHR Positive monoclonal gammopathy Non-opposition formulated

Inclusion Criteria for Control :

Major patient Realized Serum protein electrophoresis between 2014 and 2017 Hematology follow-up at Brest CHR Negative gammopathy Non-opposition formulated

Exclusion Criteria:

Minor patient Major protected Patient with another haemopathy secreting a monoclonal immunoglobulin (lymphoma, LLC ...) Physical or mental incapacity Refusal to participe

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Control
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Patients with monoclonal gammopathy
patients with a normal plasma protein electrophoresis

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Frequency of pruritus
Time Frame: through study completion, an average of 1 year
through study completion, an average of 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 24, 2019

Primary Completion (Actual)

November 19, 2019

Study Completion (Actual)

November 19, 2019

Study Registration Dates

First Submitted

February 5, 2019

First Submitted That Met QC Criteria

February 5, 2019

First Posted (Actual)

February 6, 2019

Study Record Updates

Last Update Posted (Actual)

August 26, 2020

Last Update Submitted That Met QC Criteria

August 25, 2020

Last Verified

August 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

All collected data that underlie results in a publication

IPD Sharing Time Frame

Data will be available after the publication of result and ending three years maximum following the last visit of the last patient

IPD Sharing Access Criteria

Data access requests will be reviewed by the internal committee of Brest UH. requestors will be required to sign and complete a data access agreement

IPD Sharing Supporting Information Type

  • Study Protocol

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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