NCT03208647

Brief Summary

To ascertain the risk factors of AA in ZheJiang Province of China at the moment, especially the comprehensive multiple factors risks. The author conducted a case-control research included 338 AA cases and 1464 controls. Subjects were surveyed using same standard questionnaire including personal data, past histories of diseases, family history and histories of occupational and daily exposure to harmful substances. Single and multiple Logistic regression analyses were made using SPSS17.0 on the dates to study potential factors in the development of AA.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,802

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2003

Longer than P75 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2003

Completed
11 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2014

Completed
2.5 years until next milestone

First Submitted

Initial submission to the registry

July 18, 2016

Completed
12 months until next milestone

First Posted

Study publicly available on registry

July 5, 2017

Completed
Last Updated

July 5, 2017

Status Verified

July 1, 2017

Enrollment Period

11 years

First QC Date

July 18, 2016

Last Update Submit

July 3, 2017

Conditions

Keywords

case-control studyMultiple risk factors

Outcome Measures

Primary Outcomes (1)

  • the items about daily Exposures

    Whether living or working near chemical factory or ionizing radiation, whether living in newly decorated apartments/house, having pets/livestock

    January 2014

Secondary Outcomes (4)

  • Individual Behaviours

    January 2014

  • Occupational Exposures

    January 2014

  • Individual Health Status

    January 2014

  • Family disease history

    January 2014

Study Arms (2)

AA Group

All the patients of AA group met a AA diagnostic criteria;

Other: AA or not

Control Group

The control group were chosen from other departments who were under acute infection (such as pneumonia), acute abdominal emergency (such as appendicitis), cataract surgery;

Interventions

to study their risk factors

AA Group

Eligibility Criteria

Age1 Year - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

All the patients of AA group met a AA diagnostic criteria;The control group were chosen from other departments who were under acute infection (such as pneumonia), acute abdominal emergency (such as appendicitis), cataract surgery; All cases had no history of tumor and radiation and chemotherapy, without receiving the immunological therapy; the control group cases without hematological diseases, autoimmune diseases, Fanconi anemia, congenital diseases, etc.

You may qualify if:

  • All the patients of AA group met a AA diagnostic criteria;The control group were chosen from other departments who were under acute infection (such as pneumonia), acute abdominal emergency (such as appendicitis), cataract surgery;
  • years old, male or female;
  • Sign the informed consent.

You may not qualify if:

  • With myelodysplastic syndrome, leukaemia, multiple myeloma,megaloblastic anaemia, paroxysmal sleep hemoglobinuria disease blood disease, etc.
  • History of tumor, radiation or chemotherapy, once accept the immunological therapy, autoimmune diseases or allergic disease patients;
  • Patients with neurological diseases.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Anemia, Aplastic

Interventions

Nuclear Receptor Subfamily 4, Group A, Member 2

Condition Hierarchy (Ancestors)

AnemiaHematologic DiseasesHemic and Lymphatic DiseasesBone Marrow Failure DisordersBone Marrow Diseases

Intervention Hierarchy (Ancestors)

Orphan Nuclear ReceptorsDNA-Binding ProteinsProteinsAmino Acids, Peptides, and ProteinsReceptors, Cytoplasmic and Nuclear

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
chief

Study Record Dates

First Submitted

July 18, 2016

First Posted

July 5, 2017

Study Start

January 1, 2003

Primary Completion

January 1, 2014

Study Completion

January 1, 2014

Last Updated

July 5, 2017

Record last verified: 2017-07

Data Sharing

IPD Sharing
Will not share