Nomacopan (rVA576) in Transplant Associated Thrombotic Microangiopathy

Sponsor
AKARI Therapeutics (Industry)
Overall Status
Recruiting
CT.gov ID
NCT04784455
Collaborator
(none)
50
1
1
40
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Study Details

Study Description

Brief Summary

Multicentre Study of nomacopan in Paediatric Haematopoietic Stem-Cell Transplant Associated Thrombotic Microangiopathy

Condition or Disease Intervention/Treatment Phase
  • Drug: nomacopan (rVA576)
Phase 3

Detailed Description

This is an open-label, multi-centre study of two-parts, Part A and B, includes 24 weeks of treatment, safety follow up after 30 days.

Part A: dose algorithm, safety and efficacy

Part B: safety and efficacy

Study Design

Study Type:
Interventional
Anticipated Enrollment :
50 participants
Allocation:
N/A
Intervention Model:
Single Group Assignment
Intervention Model Description:
Open-label, uncontrolled, multi-centre two-part study. Part A: dose algorithm, safety and efficacy Part B: safety and efficacyOpen-label, uncontrolled, multi-centre two-part study. Part A: dose algorithm, safety and efficacy Part B: safety and efficacy
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Multicentre Study of Nomacopan (rVA576) in Paediatric Haematopoietic Stem-Cell Transplant Associated Thrombotic Microangiopathy
Actual Study Start Date :
Feb 1, 2021
Anticipated Primary Completion Date :
Nov 1, 2023
Anticipated Study Completion Date :
Jun 1, 2024

Arms and Interventions

Arm Intervention/Treatment
Experimental: nomacopan (rVA576)

The study population will consist of paediatric patients who have undergone allogeneic or autologous HSCT and develop HSCT-TMA within 100 days of HSCT

Drug: nomacopan (rVA576)
The study population will consist of paediatric patients who have undergone allogeneic or autologous HSCT and develop HSCT-TMA within 100 days of HSCT

Outcome Measures

Primary Outcome Measures

  1. RBC transfusion independence for ≥ 28 days immediately prior to any scheduled clinical visit up to Week 24 [24 weeks]

    Transfusion independence is defined as no RBC or platelet transfusion attributable to, or required to manage, thrombotic microangiopathy (TMA). Transfusions required for causes other than TMA will not be considered within the evaluation of the primary efficacy endpoints.

  2. Urine protein creatinine ratio ≤ 2 mg/mg [24 weeks]

    Urine protein creatinine ratio ≤ 2 mg/mg

Secondary Outcome Measures

  1. Renal Function Improvement [24 weeks]

    Percentage of patients who achieve the primary endpoint of urine protein creatinine ratio ≤ 2 mg/mg (the nephrotic threshold) for ≥ 28 days

  2. Platelet transfusion independence [24 weeks]

    Platelet transfusion independence for ≥ 28 days within the 24 week timeframe

  3. Normalisation of lab parameters [24 weeks]

    Serum sC5b-9 ≤ ULN

  4. Normalisation of lab parameters [24 weeks]

    Lactate dehydrogenase (LDH) ≤ULN

  5. Normalisation of lab parameters [24 weeks]

    Normalization of haptoglobin

  6. Safety and tolerability of nomacopan [28 weeks]

    New or worsening AEs after dosing of investigational product will be recorded in the eCRF.

  7. Safety and tolerability of nomacopan [28 weeks]

    Listings of subjects who have an SAE.

  8. Safety and tolerability of nomacopan [28 weeks]

    Listings of subjects who discontinue from the study due to an AE.

  9. Safety and tolerability of nomacopan [28 weeks]

    Occurrence of significant laboratory abnormalities will be summarized.

Eligibility Criteria

Criteria

Ages Eligible for Study:
6 Months to 18 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  1. Aged ≥ 0.5 and < 18 years at the time of diagnosis of TMA.

  2. Undergone allogeneic or autologous HSCT.

  3. TMA diagnosis within 100 days of their first allogeneic or autologous HSCT.

  4. Clinical or histological diagnosis of TMA

  5. Provision of written informed consent.

  6. Provision of informed assent

Exclusion Criteria:
  1. Patients weighing less than 5 kg.

  2. Patients with a positive direct Coomb's test.

  3. Patients who do not receive nomacopan within 14 days of the initial diagnosis of TMA.

  4. Patients having an active systemic or organ system bacterial or fungal infection or progressive severe infection

  5. Grade 4 Acute GVHD

  6. Received eculizumab or any other complement blocker therapy at any time.

  7. Known hypersensitivity to the active ingredient or excipients

  8. A positive ADAMTS13 test (<10%),

Contacts and Locations

Locations

Site City State Country Postal Code
1 Duke University Medical Center, Children's Health Center Durham North Carolina United States 27710

Sponsors and Collaborators

  • AKARI Therapeutics

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
AKARI Therapeutics
ClinicalTrials.gov Identifier:
NCT04784455
Other Study ID Numbers:
  • AK901
First Posted:
Mar 5, 2021
Last Update Posted:
Mar 5, 2021
Last Verified:
Nov 1, 2020
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Additional relevant MeSH terms:

Study Results

No Results Posted as of Mar 5, 2021