NCT06690047

Brief Summary

To assess the efficacy of recombinant human C1-esterase inhibitor in the management of HAE prodrome for preventing the progression from prodrome to an acute angioedema attacks. Subjects will either receive Ruconest after the first 2 prodromes or during the last 2 prodromes. 5 clinic visits will occur within 24 hours of a prodrome. Subjects will complete prodrome severity and angioedema attack diaries

Trial Health

87
On Track

Trial Health Score

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

Enrollment
5

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Aug 2018

Longer than P75 for phase_4

Geographic Reach
1 country

2 active sites

Status
completed

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

Study Start

First participant enrolled

August 14, 2018

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 28, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 28, 2022

Completed
2.5 years until next milestone

First Submitted

Initial submission to the registry

November 12, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 15, 2024

Completed
Last Updated

November 15, 2024

Status Verified

November 1, 2024

Enrollment Period

3.7 years

First QC Date

November 12, 2024

Last Update Submit

November 13, 2024

Conditions

Keywords

prodrome

Outcome Measures

Primary Outcomes (1)

  • The primary endpoint was the difference in response rates in preventing HAE attacks between Conestat Alfa®-treated vs. untreated HAE prodrome events.

    A mixed model for repeated measures was used to determine the statistical significance of Conestat Alfa®'s clinical efficacy for treating the HAE prodrome versus the acute attack.

    up to 12 months from start of study

Study Arms (2)

Ruconest

ACTIVE COMPARATOR

open-label Ruconest

Biological: Ruconest

No Ruconest

NO INTERVENTION

No Ruconest given

Interventions

RuconestBIOLOGICAL

recombinant human C1-esterase inhibitor

Ruconest

Eligibility Criteria

Age14 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Prior diagnosis of HAE Type 1 and 2,
  • One or more HAE attacks per month,
  • History of 4 prodromes that proceed to angioedema attacks

You may not qualify if:

  • History of thrombosis or arterial/venous thromboembolic attacks
  • History of atherosclerosis, morbid obesity, immobility
  • History of allergy to rabbits or products from rabbits
  • History of life-threatening immediate allergic reactions to C1 esterase inhibitor preparations

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Clinical Research Center of Alabama

Birmingham, Alabama, 35209, United States

Location

Bernstein Clinical Research Center, LLC

Cincinnati, Ohio, 45236, United States

Location

MeSH Terms

Conditions

Angioedemas, Hereditary

Interventions

conestat alfa

Condition Hierarchy (Ancestors)

AngioedemaVascular DiseasesCardiovascular DiseasesHereditary Complement Deficiency DiseasesPrimary Immunodeficiency DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesUrticariaSkin Diseases, VascularSkin DiseasesSkin and Connective Tissue DiseasesHypersensitivity, ImmediateHypersensitivityImmune System DiseasesImmunologic Deficiency Syndromes

Study Officials

  • Jonathan Bernstein, MD

    Bernstein Clinical Research Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PI

Study Record Dates

First Submitted

November 12, 2024

First Posted

November 15, 2024

Study Start

August 14, 2018

Primary Completion

April 28, 2022

Study Completion

April 28, 2022

Last Updated

November 15, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

not needed for manuscript

Locations