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A Randomized, Double-blind, Placebo-controlled, Clinical Outcome Study of ARC1779 Injection in Patients with Thrombotic Microangiopathy. - Study of ARC1779 Injection in Patients with Thrombotic Microangiopathy

A Randomized, Double-blind, Placebo-controlled, Clinical Outcome Study of ARC1779 Injection in Patients with Thrombotic Microangiopathy. - Study of ARC1779 Injection in Patients with Thrombotic Microangiopathy

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2008-001872-54-GB
Enrollment
100
Registered
2008-10-15
Start date
2009-01-24
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

Thrombotic microangiopathy (TMA) disorders MedDRA version: 9.1 Level: LLT Classification code 10009731 Term: Coagulation disorder

Interventions

Product Name: ARC1779 Product Code: ARC1779 Pharmaceutical Form: Solution for infusion CAS Number: 934868-74-3 Current Sponsor code: ARC1779 Other descriptive name: Poly(oxy-1,2-ethanediyl), a-hydro

Sponsors

Archemix Corp
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Male or female; =18 to =75 years of age; Diagnosis of TMA based on presence of: Thrombocytopenia, defined as a platelet count =65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Females: pregnant or <24 hours post-partum, or breastfeeding; History of bleeding diathesis or evidence of active abnormal bleeding within the previous 30 days; Disseminated malignancy or other co-morbid illness limiting life expectancy to 3 months independent of the TMA disorder. Diagnosis other than TMA which can account for the findings of thrombocytopenia and hemolytic anemia (e.g., DIC, HELLP syndrome, Evans syndrome); Diagnosis of DIC verified by laboratory values for D-dimer, fibrinogen, prothrombin time (PT), and activated partial thromboplastin time (aPTT). Patients who have again become acutely ill following recent treatment and achievement of a brief remission of acute TMA may not be enrolled in the study if ANY of the following conditions are met: The last plasma exchange of the patient’s preceding course of treatment occurred less than 7 days prior; The patient underwent splenectomy during the preceding course of treatment; The new course of plasma exchange has been ongoing for more than 3 days.

Design outcomes

Primary

MeasureTime frame
Main Objective: • To evaluate the ability of ARC1779 Injection to improve clinical outcome by protecting brain, heart, and kidney from damage due to formation of disseminated platelet thrombi in the microcirculation; • To evaluate the overall safety and tolerability of ARC1779 Injection; • To assess the concentration-response of ARC1779 for efficacy- and safety-related effects; • To assess the concentration-response relationships among ARC1779 pharmacokinetic (PK) and pharmacodynamic (PD) parameters.;Secondary Objective: Exploratory objectives Some patients may undergo cranial MRI once prior to, and once again ~6 weeks after the start of study drug treatment.;Primary end point(s): Composite of clinical events and biomarker evidence for injury to the target organs commonly affected by TMA, i.e. brain, heart and kidney.

Countries

Austria, Italy, United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026