Dose-ranging Study of Oral PHA-022121 for Acute Treatment of Angioedema Attacks in Patients With Hereditary Angioedema
Public ClinicalTrials.gov record NCT04618211. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase II, Double-blind, Placebo-controlled, Randomized, Cross-over, Dose-ranging Study of Oral PHA-022121 for Acute Treatment of Angioedema Attacks in Patients With Hereditary Angioedema Due to C1-inhibitor Deficiency Type I and II
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study evaluates the efficacy of orally administered deucrictibant for the acute treatment of attacks in patients with hereditary angioedema (HAE). Eligible subjects are randomized to one of three single doses of deucrictibant and placebo. The study will compare symptom relief (skin pain, skin swelling, abdominal pain) during HAE attacks and safety of each dose of deucrictibant with placebo.
Study identification
- NCT ID
- NCT04618211
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 74 participants
Conditions and interventions
Conditions
- Hereditary Angioedema
- Hereditary Angioedema Type I
- Hereditary Angioedema Type II
- Hereditary Angioedema Types I and II
- Hereditary Angioedema Attack
- Hereditary Angioedema With C1 Esterase Inhibitor Deficiency
- Hereditary Angioedema - Type 1
- Hereditary Angioedema - Type 2
- C1 Esterase Inhibitor Deficiency
- C1 Inhibitor Deficiency
Eligibility (public fields only)
- Age range
- 18 Years to 75 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 3, 2021 (Actual)
- Primary completion
- Sep 23, 2022 (Actual)
- Completion
- Mar 1, 2023 (Actual)
- Last update posted
- Dec 17, 2025
2021 – 2023
United States locations
- U.S. sites
- 8
- U.S. states
- 6
- U.S. cities
- 8
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Study site | Birmingham | Alabama | 35209 | — |
| Study site | Paradise Valley | Arizona | 85253 | — |
| Study site | San Diego | California | 92122 | — |
| Study site | Santa Monica | California | 90404 | — |
| Study site | Walnut Creek | California | 94598 | — |
| Study site | Chevy Chase | Maryland | 20815 | — |
| Study site | St Louis | Missouri | 63141 | — |
| Study site | Hershey | Pennsylvania | 17033 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 28 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04618211, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 17, 2025 · Synced Oct 21, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04618211 live on ClinicalTrials.gov.