A Registry for the Collection of Biological and Clinical Data for Studies of Immune System Related Blood Disorders


About this study

The purpose of this study is to develop and maintain a registry of clinical data and biological specimens from patients with immune system related blood disorders, for use in future studies of disease source, diagnosis, treatment, and prognosis.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

Inclusion Criteria

  • At least 18 years of age
  • Able to provide informed consent
  • Has diagnosed or suspected blood disorders associated with immune cytopenia (primary or secondary) including, though not restricted, to the following better-defined diseases
    • Immune hemolytic anemia
      • Cold-agglutinin disease
      • Evans syndrome
      • Paroxysmal cold hemoglobinuria
      • Warm autoimmune hemolytic anemia
    •  Immune neutropenia
    •  Immune thrombocytopenia
    •  Pure red cell aplasia
    •  Thrombotic thrombocytopenic purpura (acquired)
  • Hemoglobin levels greater than 8

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Ronald Go, M.D.

Open for enrollment

Contact information:

Amy Eisenberg



More information


Publications are currently not available

Study Results Summary

Not yet available

Supplemental Study Information

Not yet available


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