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Association study of HLA polymorphisms with antithyroid drug-induced agranulocytosis in a Han population from southern China

Association of HLA-B and HLA-DRB1 polymorphisms with Antithyroid Drug-Induced Agranulocytosis in a Han Population from Sorthern China

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1900028690
Enrollment
Unknown
Registered
2019-12-31
Start date
2020-01-10
Completion date
Unknown
Last updated
2020-01-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

antithyroid drug-induced agranulocytosis

Interventions

Antithyroid drug-related agranulocytosis group:None
Antithyroid drug-related granulocytopenia group:None
Antithyroid drug torelance group:None
Normal control group:None

Sponsors

Fujian Medical University Union Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: Eligible participants were aged 18 years or older and were able to provide informed consent. Subjects were diagnosed with GD based on clinical and biochemical hyperthyroidism, along with the presence of either thyroid exophthalmos or diffuse goiter and a significant titer of autoantibodies. ATDs, including MMI or PTU, were administered to all patients. Patients were diagnosed with ATD-induced agranulocytosis based on the criteria listed below. First, patients were confirmed to have a granulocyte count greater than or equal to 1.5x10^9/L before they were administered ATDs. Second, the granulocyte count fell below 0.5x10^9/L after ATD administration, and the patients recovered from agranulocytosis after the cessation of ATD treatment. Because 80% of cases of ATD-induced agranulocytosis occur in the first 3 months, the GD control group was composed of subjects with GD who had been treated with ATDs for at least 3 months and had not developed agranulocytosis upon entering the study. All control patients with GD were confirmed to have a normal granulocyte count during the subsequent treatment.

Exclusion criteria

Exclusion criteria: Anticancer chemotherapy within 1 month of onset of agranulocytosis; radiation therapy within the previous month; bone marrow transplantation at any time; ongoing infection with Epstein-Barr virus, hepatitis A virus, HIV, cytomegalovirus, or parvovirus B19; ongoing sepsis; ongoing miliary tuberculosis; current presence of chronic neutropenia (congenital cyclic or idiopathic); ongoing immunosuppressive therapy with cytotoxic drugs; current presence of malignant infi ltration of bone marrow; haematological diseases (eg, myelodysplasia, aplastic anaemia, pancytopenia, and other blood dyscrasias, such as haemoglobin <=100 g/L or platelets <=100x10^9/L); and current presence of systemic lupus erythematosus.

Design outcomes

Primary

MeasureTime frame
HLA-B;HLA-DRB;SNP;

Countries

China

Contacts

Public ContactYao Chen

Fujian Medical University Union Hospital

doctor.chenyao@163.com+86 13365910516

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jul 13, 2026