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Completed

NCT Number: NCT02093923

A Double-Blind, Multiple Ascending Dose Study to Assess Safety, Tolerability and Pharmacokinetics of DX-2930 in Hereditary Angioedema Participants

The purpose of this study is to evaluate the safety, tolerability, and pharmacokinetics (PK) profile of multiple subcutaneous administrations of DX-2930 across a range of doses in HAE participants.

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Key information

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • At least 18 years of age at the time of screening
  • Documented diagnosis of HAE (Type I or II)
  • Experiencing ≥2 HAE attacks per year, with at least 1 attack in the past 6 months reported by the participant
  • Willing and able to read, understand, and sign an informed consent form
  • Females of childbearing potential must agree to be abstinent or else use acceptable forms of contraception throughout study
  • Males with female partners of childbearing potential must agree to be abstinent or use a medically acceptable form of contraception throughout study

Exclusion criteria

  • Exposure to an investigational drug or device within 90 days prior to study
  • History of exposure within the past 5 years to a monoclonal antibody or recombinant protein bearing an Fc domain
  • Concomitant diagnosis of another form of chronic angioedema
  • Use of long-term prophylaxis for HAE within 90 days prior to study
  • Use of C1-INH that exceeds a total of 30 days within the past 90 days prior to study; any use of C1-INH within 7 days prior to study
  • Exposure to angiotensin-converting enzyme (ACE) inhibitors or any estrogen-containing medications with systemic absorption within 90 days prior to study
  • Exposure to androgens within 90 days prior to study
  • Presence of an indwelling catheter
  • Diagnosis of HIV
  • Active liver disease or liver function test abnormalities
  • History of substance abuse or dependence
  • Pregnancy or breastfeeding
  • Any condition that, in the opinion of the Investigator, may compromise their safety or compliance, preclude successful conduct of the study, or interfere with interpretation of the results

Treatment and study plan

DX-2930

Drug

Participants will receive SC injection of DX-2930 (a recombinant, Chinese hamster ovary [CHO] cell expressed, fully human immunoglobulin IgG1, kappa light chain, monoclonal antibody) once and followed by the second dose after 2 week into the upper arm.

Placebo

Drug

Participants will receive matching placebo subcutaneously.

Primary outcomes

  1. Number of Participants With Serious Adverse Events (SAE) and Treatment-Emergent Adverse Events (TEAE)

    Time frame: From Day 1 up to final follow-up (Day 123)

    A SAE was any adverse experience occurring at any dose that resulted in any of the following outcomes: Death, Life-threatening experience, required inpatient hospitalization or prolongation of existing hospitalization. Resulted in persistent or significant disability or incapacity. Was a congenital anomaly or birth defect. Was considered to be an important medical event. An AE was considered treatment-emergent if the onset time was after administration of study drug through the Day 120 post-dose final follow-up visit or, in the event that onset time preceded study drug administration, the AE increased in severity during the 120-day post-dose follow-up period.

Secondary outcomes

  1. Maximum Plasma Concentration (Cmax)

    Time frame: Days 1, 2, 4, 8, 15, 16, 18, 22, 29, 36, 50, 64, 92, and 120

    Pharmacokinetic (PK) parameter Cmax data were reported.

  2. Time to Maximum Plasma Concentration (Tmax)

    Time frame: Days 1, 2, 4, 8, 15, 16, 18, 22, 29, 36, 50, 64, 92, and 120

    PK parameter Tmax data were reported.

  3. Area Under the Plasma Concentration-Time Curve (AUC)

    Time frame: Days 1, 2, 4, 8, 15, 16, 18, 22, 29, 36, 50, 64, 92, and 120

    PK paramenter AUC data were reported.

  4. Apparent Clearance (CL/F)

    Time frame: Days 1, 2, 4, 8, 15, 16, 18, 22, 29, 36, 50, 64, 92, and 120

    PK parameter CL/F data were reported.

  5. Apparent Volume of Distribution (Vd/F)

    Time frame: Days 1, 2, 4, 8, 15, 16, 18, 22, 29, 36, 50, 64, 92, and 120

    PK parameter Vd/F data were reported.

  6. Terminal Elimination Half-Life (t1/2)

    Time frame: Days 1, 2, 4, 8, 15, 16, 18, 22, 29, 36, 50, 64, 92, and 120

    PK parameter t(1/2) data were reported.

Other outcomes

  1. HAE Attack Rate Per Week From Day 8 to Day 50

    Time frame: Day 8 to Day 50

    Analysis of this outcome measure was based on participants in the 300 mg, 400 mg, and placebo dose groups with a historical baseline attack rate of at least 2 attacks over the last 3 months prior to enrollment. The result is based on General Estimating Equation (GEE) analysis of repeated counts per week during the pre-specified assessment period (Days 8 to 50; predicted to correspond to a period of notable drug exposure). Baseline HAE attack rate per week was a covariate, treatment group is a fixed effect, and participant was a random effect in the GEE model with independence working correlation structure.

  2. HAE Attacks Per Week From Day 8 to Day 92

    Time frame: Day 8 to Day 92

    This endpoint analysis was based on participants in the 300 mg, 400 mg, and placebo dose groups with a historical baseline attack rate of at least 2 attacks over the last 3 months prior to enrollment. The result is based on General Estimating Equation (GEE) analysis of repeated counts per week during the prespecified assessment period (Day 8 to Day 92 predicted to correspond to a period of notable drug exposure). Baseline HAE attack rate per week is a covariate, treatment group is a fixed effect, and participant is a random effect in the GEE model with independence working correlation structure.

  3. HAE Attacks Per Week From Day 8 to Day 64

    Time frame: Day 8 to Day 64

    This endpoint analysis was based on participants in the 300 mg, 400 mg, and placebo dose groups with a historical baseline attack rate of at least 2 attacks over the last 3 months prior to enrollment. The result is based on General Estimating Equation (GEE) analysis of repeated counts per week during the prespecified assessment period (Day 8 to Day 64 predicted to correspond to a period of notable drug exposure). Baseline HAE attack rate per week is a covariate, treatment group is a fixed effect, and participant is a random effect in the GEE model with independence working correlation structure.

  4. HAE Attack Rate Per Week From Day 1 to Day 50

    Time frame: Day 1 to Day 50

    This endpoint analysis was based on participants in the 300 mg, 400 mg, and placebo dose groups with a historical baseline attack rate of at least 2 attacks over the last 3 months prior to enrollment. The result is based on General Estimating Equation (GEE) analysis of repeated counts per week during the prespecified assessment period (Day 1 to Day 50 predicted to correspond to a period of notable drug exposure). Baseline HAE attack rate per week is a covariate, treatment group is a fixed effect, and participant is a random effect in the GEE model with independence working correlation structure.

Sponsors and collaborators

Lead sponsor

Shire

Industry

Registry information

Official study title

A Phase 1b, Double-Blind, Multiple Ascending Dose Study to Assess Safety, Tolerability and Pharmacokinetics of DX-2930 in Hereditary Angioedema Subjects

Important dates

Study start
2014
Primary completion
2015
Study completion
2015
First posted
Mar 21, 2014
Registry last updated
May 27, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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