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No longer recruiting (closed or complete)Last updated: 23 January 2024

HERCULES: This phase III trial is evaluating caplacizumab as a way of preventing ThrombocytosisA Phase III Double-blind, Randomized, Parallel Group, Multicenter Placebo-controlled Trial to Study the Efficacy and Safety of Caplacizumab in Patients With Acquired Thrombotic Thrombocytopenic Purpura

Trial purpose

Medical clipboardCancer treatment

Tumor type

Blood Cancers Haematological

Age

People18+

Trial acronym

HERCULES

Clinical summary

Summary

The study is a phase III, double blind, placebo-controlled, randomized study to evaluate the efficacy and safety of caplacizumab treatment in more rapidly curtailing ongoing microvascular thrombosis when administered in addition to standard of care treatment in subjects with an acute episode of acquired TTP.

Conditions

This trial is treating people with Essential Thrombocytosis

Eligibility

Inclusion

  1. Adult male or female ≥ 18 years of age at the time of signing the informed consent form (ICF).
  2. Clinical diagnosis of acquired thrombotic thrombocytopenic purpura (aTTP) (initial or recurrent), which included thrombocytopenia and microscopic evidence of red blood cell fragmentation (e.g., schistocytes).
  3. Required initiation of daily PE treatment and had received 1 PE treatment prior to randomization
  4. Others as defined in the protocol

Exclusion

  1. Platelet count ≥100×10E9/L.
  2. Serum creatinine level >200 µmol/L in case platelet count is > 30×10E9/L
  3. Known other causes of thrombocytopenia
  4. Congenital TTP (known at the time of study entry).
  5. Pregnancy or breast-feeding.
  6. Subjects who were previously enrolled in a clinical study with caplacizumab and received caplacizumab or for whom the assigned treatment arm is unknown
  7. Others as defined in the protocol

Exclusion

  • You have certain types of non-cancer medical conditions.
  • You are currently being treated on a clinical trial.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

  • NCT02553317 *
  • ALX0681-C301, 2015-001098-42, CT802, 2015-523-00AU1

Trial sponsor

Ablynx

Scientific Title

A Phase III Double-blind, Randomized, Parallel Group, Multicenter Placebo-controlled Trial to Study the Efficacy and Safety of Caplacizumab in Patients With Acquired Thrombotic Thrombocytopenic Purpura

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