Dose Escalation of BCX10013 in Participants with Paroxysmal Nocturnal Hemoglobinuria (PNH)

January 7, 2025 updated by: BioCryst Pharmaceuticals

An Open-Label, Multicenter, Intra-Subject Dose Escalation Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Therapeutic Potential of BCX10013 in Subjects with Paroxysmal Nocturnal Hemoglobinuria

This is a multicenter, open-label, intra-subject, dose escalation study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and therapeutic potential of BCX10013 in participants with PNH. Approximately 8 participants will be enrolled in this study. Participants may receive treatment for up to 52 weeks.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
8

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Malaysia
      • Ampang, Malaysia
        • BioCryst Investigative Site
  • South Africa
      • Bloemfontein, South Africa
        • BioCryst Investigative Site
      • Cape Town, South Africa
        • BioCryst Investigative Site
      • Pretoria, South Africa
        • BioCryst Investigative Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Key Inclusion Criteria:

  1. Male or non-pregnant, non-lactating female adults ≥ 18 years old.
  2. Documented diagnosis of PNH confirmed by flow cytometry.
  3. Body mass index (BMI) ≤ 40 kg/m^2.
  4. Are either: (a) naïve to treatment with a complement inhibitor; or (b) have received no treatment with ravulizumab for at least 12 months prior to the screening visit and have received no treatment with eculizumab or pegcetacoplan for 6 months prior to the screening visit.
  5. Documentation of current vaccinations against N. meningitidis, S. pneumoniae, and H. influenzae type B [Hib] or willingness to start vaccination series at least 14 days prior to Day 1.

Key Exclusion Criteria:

  1. Known history of or existing diagnosis of hereditary complement deficiency.
  2. History of hematopoietic cell transplant or solid organ transplant or anticipated candidate for transplantation during the study.
  3. Myocardial infarction or cerebrovascular accident within 30 days prior to screening, or current and uncontrolled clinically significant cardiovascular or cerebrovascular condition, including unstable angina, severe congestive heart failure, unexplained syncope, arrhythmia, and critical aortic stenosis.
  4. History of malignancy within 5 years prior to the screening visit.
  5. Treatment with anti-thymocyte globulin within 180 days prior to the screening visit.
  6. Initiation of treatment with an erythropoiesis-stimulating agent (eg, erythropoietin), a thrombopoietin receptor agonist (eg, eltrombopag), or danazol within 28 days prior to the screening visit.
  7. Receiving iron with an unstable dose (ie, increasing or decreasing) in the 28 days prior to the screening visit.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: BCX10013
Participants with PNH will receive BCX10013 daily for 4 weeks before dose escalation may occur.
Drug: BCX10013
Multiple dose levels may be tested in this study.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Number of Participants with Treatment-Emergent Adverse Events (TEAEs) and Graded Laboratory Abnormalities, and Changes From Baseline (CFB) in Laboratory Analytes, Vital signs, Electrocardiograms (ECGs), and Physical Examination Findings.
Time Frame: up to 52 weeks
up to 52 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
CFB in Lactate Dehydrogenase
Time Frame: Baseline, Week 52
Baseline, Week 52
CFB in the Ratio of Total PNH Red Blood Cell Clone Size to PNH White Blood Cell Clone Size
Time Frame: Baseline, Week 52
Baseline, Week 52
CFB in Hemoglobin
Time Frame: Baseline, Week 52
Baseline, Week 52
Percentage of Participants who are Transfusion-free
Time Frame: 52 weeks
52 weeks
Percentage of Participants Achieving a Within-subject Clinically Meaningful CFB in the FACIT-Fatigue scale
Time Frame: 52 weeks
52 weeks
CFB in Other Clinical Biomarkers of PNH Disease Activity including absolute reticulocyte count, total PNH red blood cell clone size, haptoglobin levels, total bilirubin, and aspartate transaminase
Time Frame: Baseline, Week 52
Baseline, Week 52
Number of Participants with Clinical PNH Symptoms
Time Frame: up to 52 weeks
up to 52 weeks
Concentration of BCX10013 and its Metabolite(s) in Plasma
Time Frame: Pre-dose, 0.5, 1, 2, 4, and 6 hours post dose on Day 1, Week 2, and Week 4
Pre-dose, 0.5, 1, 2, 4, and 6 hours post dose on Day 1, Week 2, and Week 4
Concentration of BCX10013 and its Metabolite(s) in Urine (if applicable)
Time Frame: Pre-dose and all urine from 0 to 6 hours post dose on Day 1, Week 2, and Week 4
Pre-dose and all urine from 0 to 6 hours post dose on Day 1, Week 2, and Week 4

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
BioCryst Pharmaceuticals

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 24, 2023

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 11, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 11, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 20, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 20, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 25, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 7, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • BCX10013-105

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings