NCT01609452

Brief Summary

The purpose of this study is to evaluate efficacy, safety and tolerability of blisibimod when administered on top of standard-of-care to subjects with Immune Thrombocytopenic Purpura (ITP).

Trial Health

10
At Risk

Trial Health Score

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

Status
withdrawn

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 23, 2012

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 1, 2012

Completed
3.5 years until next milestone

Study Start

First participant enrolled

December 1, 2015

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2016

Completed
Last Updated

July 30, 2015

Status Verified

July 1, 2015

Enrollment Period

6 months

First QC Date

May 23, 2012

Last Update Submit

July 28, 2015

Conditions

Keywords

Immune Thrombocytopenic PurpuraIdiopathic Thrombocytopenic PurpuraChronic ITP

Outcome Measures

Primary Outcomes (1)

  • Achievement of a durable platelet response of 50 billion platelets per liter or higher over the last weeks of treatment.

    24 weeks

Secondary Outcomes (8)

  • Achievement of a durable platelet count of 50 billion platelets per liter or higher over the last weeks of treatment under conditions of decreased concomitant steroid medication.

    24 weeks

  • Achievement of a transient improvement in platelet count of 50 billion platelets per liter or higher at any 4 weeks of the treatment period.

    24 weeks

  • Change in background corticosteroid dose.

    baseline to 24 weeks

  • Percentage of subjects requiring rescue therapy.

    24 weeks

  • Time to treatment failure.

    24 weeks

  • +3 more secondary outcomes

Study Arms (2)

Blisibimod

EXPERIMENTAL
Biological: Blisibimod

Placebo

PLACEBO COMPARATOR
Other: Placebo

Interventions

BlisibimodBIOLOGICAL
Also known as: A-623
Blisibimod
PlaceboOTHER
Placebo

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • to 75 years of age(male or female).
  • Diagnosis of ITP according to the guidelines of the American Society of Hematology (ASH) and British Committee for Standards in Hematology.
  • Platelet counts at Screening of 30 billion/L or less for subjects not on ITP medication, or 50 billion/L or less for subjects receiving stable background ITP medication.

You may not qualify if:

  • Subjects who have had a splenectomy for any reason.
  • Currently receiving high-dose ITP medications, eltrombopag, romiplostim, rituximab, or investigational therapeutic agents.
  • Nursing or pregnant.
  • Active infection requiring hospitalization or treatment with parenteral antibiotics within the past 60 days.
  • Any known history of bone marrow stem cell disorder.
  • Active hepatitis B, active hepatitis C or a documented history of HIV, hepatitis B, or hepatitis C.
  • Liver disease.
  • Malignancy within the past 5 years.
  • History of active tuberculosis (TB) or history of TB infection.
  • Subject has not yet completed at least 3 months or 5 half-lives (whichever is longer) since ending other investigational study.
  • History of congenital immunodeficiency.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Purpura, Thrombocytopenic, Idiopathic

Interventions

AMG623 peptibody

Condition Hierarchy (Ancestors)

Purpura, ThrombocytopenicPurpuraBlood Coagulation DisordersHematologic DiseasesHemic and Lymphatic DiseasesThrombotic MicroangiopathiesThrombocytopeniaBlood Platelet DisordersCytopeniaHemorrhagic DisordersAutoimmune DiseasesImmune System DiseasesHemorrhagePathologic ProcessesPathological Conditions, Signs and SymptomsSkin ManifestationsSigns and Symptoms
0

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 23, 2012

First Posted

June 1, 2012

Study Start

December 1, 2015

Primary Completion

June 1, 2016

Last Updated

July 30, 2015

Record last verified: 2015-07