- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03731494
Quality of Life in Systemic Nickel Allergy Syndrome
Quality of Life Assessment Before and After Hyposensitization Treatment in Systemic Nickel Allergy Syndrome
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Nickel (Ni) is a nutritionally essential metal widely distributed in the environment, and it has been reported to be one of the most common causes of allergic contact dermatitis (ACD), affecting nearly 15-20% of the general population. As known, Ni-hypersensitivity can induce less frequently also respiratory allergy (RA) and in approximately 20% of Ni-ACD patients cause a more complex condition termed Systemic Nickel Allergy Syndrome (SNAS). It is characterized by a combination of cutaneous (in regions without direct nickel contact) and extracutaneous gastrointestinal symptoms, after the ingestion of Ni-rich foods, especially vegetables. Then, a low-Ni diet, following positive patch tests, represents a effective diagnostic and therapeutic tool in the control of systemic manifestations, determining a significant clinical improvement.
It is known that Nickel oral hyposensitization treatment (NiOHT) is a effective approach for the management of Ni allergy, especially in a subset of patients with SNAS, inducing immunological and clinical tolerance to metal at the doses normally taken with the diet.
Although a large number of clinical trials focused on the health-related quality of life (HRQoL) in allergic disease, the expectations, the needs and the psychosocial characteristics of patients affected by SNAS are limited and no data exist pre- and post-treatment and specifically with NiOHT. Given the high safety profile and beneficial effects of immunotherapy on HRQoL of patients with allergic rhinitis, we hypothesized similar positive results even after oral Ni desensitization.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Roma, Italy, 00168
- Catholic University Of Sacred Heart
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- history of SNAS (coexistence of typical cutaneous and gastrointestinal symptoms),
- positive Ni-patch test,
- clinical improvement at least 70% from baseline after 4 weeks on a low-Ni diet,
- positivity of a double blind placebo-controlled oral Ni challenge (DBPCO),
- written informed consent.
Exclusion Criteria:
- age < 18 years and > 65 years,
- other organic gastrointestinal diseases, such as peptic ulcer, inflammatory bowel diseases, celiac disease, gastrointestinal infections, and small intestinal bacterial overgrowth,
- diabetes mellitus,
- hepatic, renal or cardiac dysfunction,
- thyroid disease or tumor,
- concomitant treatment with steroids and/or antihistamines in the previous 4 weeks, pregnancy, lactation,
- smoking, abuse of alcohol, coffee, tea, and cola intake,
- refusal to participate.
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
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Nickel oral hyposensitization treatment
The patients take capsules at different doses in nickel content until reaching the maximum dose of 1.5 mcg per week for a total of 12 months.
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Nickel oral hyposensitization treatment (NiOHT) was performed with hard gelatin capsules containing Nickel sulphate (NiSO4) at different dosages (0.1 ng, 1 ng, 10 ng, 0.1 μg, 0.5 μg) and microcrystalline cellulose as excipient (TIO Nickel, Lofarma SpA, Milan, Italy).
Treatment was given 3 times a week increasing progressively the dose from 0.1 ng to 3 μg in 10 weeks with a maintenance phase of 1,5 μg a week for a period of 12 months.
After 6 months, patients were allowed to gradually reintroduce nickel-rich foods, starting with those with a maximum of 100 mcg of nickel content.
For all the treatment period, information on the appearance of side effects or more severe adverse reactions and the need for antiallergic drugs (corticosteroids, antihistamine drugs) were collected.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
QoL: Short-Form 36-Item Health Survey (SF-36v2)
Time Frame: Change from baseline index at 12 months
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Short-Form 36-Item Health Survey (SF-36v2) is a self-administered questionnaire comprising 36-items measuring eight dimensions of general HRQOL: physical functioning (10 items), role limitation due to physical health problems (4 items), bodily pain (2 items), general health perceptions (5 items), vitality (4 items), social functioning (2 items), role limitations due to emotional problems (3 items), and general mental health (5 items).
In addition to scores for individual dimensions, two summary scores assessing physical and mental dimensions of health and well-being can also be calculated: Physical Component Summary (PCS) score and the Mental Component Summary (MCS) score, respectively.
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Change from baseline index at 12 months
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QoL: Psychological General Well Being Index (PGWBI)
Time Frame: Change from baseline index at 12 months
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The PGWBI consists of 22 questions, which deal with six factors (anxiety, depression, vitality, general health,self-control and well-being) constituting a global assessment.The response format is graded 1-6 (i.e. total range 22-132), with the highest value corresponding to optimal well-being.
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Change from baseline index at 12 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Psychological state: Minnesota Multiphasic Personality Inventory (MMPI-2)
Time Frame: Baseline.
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The MMPI-2 questionnaire containing 567 items with 2 choices of answer ("true" or "false") in order to assess the main structural features of personality and emotional disorders.
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Baseline.
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Collaborators and Investigators
Investigators
- Principal Investigator: Eleonora Nucera, MD,Prof, Catholic University Of Sacred Heart
- Study Director: Antonio Gasbarrini, MD,Prof, Catholic University Of Sacred Heart
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 1377/15 (13939/14)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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