A Study to Evaluate the Effectiveness and Safety of PANZYGA in Pediatric Patients with Chronic Immune Thrombocytopenia (ITP)

Overview

About this study

The purpose of this study is to evaluate the effectiveness and safety of PANZYGA in pediatric patients with chronic Immune Thrombocytopenia (ITP).

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. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Females and males aged from ≥ 1 year to < 18 years old.
  • Confirmed diagnosis of Chronic Immune Thrombocytopenia (ITP) according to American Society of Hematology (ASH) 2011 guidelines.
  • Platelets count < 30x10^9/L at the Baseline Visit.
  • Voluntarily given written informed consent (provided by patient's parent or legal guardian) and assent (provided by patient [if age-appropriate per IRB (Institutional Review Board) requirements]).
  • Females of childbearing potential have been using at least 1 acceptable form of birth control for a minimum of 30 days (or a minimum of 3 months for hormonal contraceptives) prior to the Screening visit, and must agree to use at least 1 acceptable method of contraception for 30 days after the last dose of PANZYGA. Acceptable methods of birth control for this study include: intrauterine device (IUD), hormonal contraception, male or female condom, spermicide gel, diaphragm, sponge, or cervical cap. Abstinence is not considered an acceptable method of birth control.
  • Parent or legal guardian must agree and be willing to assist the participant attend study visits, and to follow all protocol requirements and instructions of the study doctor.

Exclusion Criteria: 

  • Thrombocytopenia secondary to other diseases (such as Acquired Immunodeficiency Syndrome [AIDS] or systemic lupus erythematosus [SLE]), drug-related thrombocytopenia, or congenital thrombocytopenia.
  • Administration of intravenous immunoglobulin (IGIV) or anti-D immunoglobulin within 3 weeks before enrollment.
  • Administration of thrombopoietin receptor agonists when the dose has NOT been stable within 3 weeks before enrollment and a dosage change is planned before Day 32.
  • Administration of oral immunosuppressants when the dose has NOT been stable during the preceding 2 months (2 weeks for long-term corticosteroid therapy) and a dosage change is planned before Day 32.
    • Note: topical agents and inhaled corticosteroid therapy use is permitted.
  • Administration of long-term anti-prolific agents or attenuated androgen therapy when the dose has NOT been stable during the preceding 2 months and a dosage change is planned before Day 32.
  • Non-responsive to previous treatment with IGIV or anti-D immunoglobulin.
  • Evidence of an active major bleeding episode at Screening.
  • Splenectomy in the previous 4 weeks or planned splenectomy throughout the study period.
  • Evans syndrome (experiencing active disease with 2 out of 3 of the following: autoimmune thrombocytopenia, autoimmune hemolytic anemia, and/or autoimmune neutropenia).
  • Known or suspected human immunodeficiency virus (HIV), hepatitis B virus (HBV), and/or hepatitis C virus (HCV) infections.
  • Emergency surgery in the previous 4 weeks.
  • Severe liver and/or kidney disease (alanine aminotransferase [ALT] >3 x upper limit of normal (ULN), aspartate aminotransferase [AST] > 3 x upper limit of normal (ULN), and/or creatinine > 120 µmol/L).
  • History of severe hypersensitivity to blood or plasma derived products, or any component of the PANZYGA.
  • Known immunoglobulin A (IgA) deficiency and antibodies against IgA. History of, or suspected alcohol or drug abuse in the previous year.
  • Females who are pregnant or nursing.
  • Unable or unwilling to comply with the study protocol.
  • Receipt of any other investigational medicinal product within 3 months before study entry.
  • Risk factors* for thromboembolic events in whom the risks outweigh the potential benefit of PANZYGA treatment.
  • Any other condition(s), that in the Investigator's opinion, make it undesirable for the patient to participate in the study or may interfere with protocol compliance.

*Risk factors include, but are not limited to:

  • obesity, advanced age, hypertension, diabetes, a history of atherosclerosis/vascular disease or thrombotic events, hyperlipidemia, multiple cardiovascular risk factors, acquired or inherited thrombophilic disorders, prolonged periods of immobilization, severe hypovolemia, central venous catheterization, active malignancy and/or known or suspected hyperviscosity.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Ahmad Al-Huniti, M.D.

Closed for enrollment

More information

Publications

Publications are currently not available
.
CLS-20480285

Mayo Clinic Footer