ClinicalTrials.gg
Enrolling by invitationNCT06679881CHAPTER-4Updated Sep 22, 2026

Long-Term, Open-label Study of Oral Deucrictibant Extended-Release Tablet for Prophylaxis Against Angioedema Attacks in Adolescents and Adults With HAE

A Phase 3 interventional study of Deucrictibant in Hereditary Angioedema (HAE), sponsored by Pharvaris Netherlands B.V.. Enrolling by invitation at 67 sites in 23 countries. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2026-09-22.

Sponsored by Pharvaris Netherlands B.V. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
170
Allocation
Not applicable
Ages
12 Years and older
Sex
All
01

Study summary

This is a Phase 3, multicenter, long-term, open-label study to evaluate the safety and efficacy of once-daily orally administered deucrictibant extended-release tablet for prophylaxis to prevent angioedema attacks in participants aged ≥12 years with Hereditary Angioedema

Read the detailed description

The study consists of a Screening Period during which eligibility is confirmed (only for participants not rolling over within 28 days from a previous deucrictibant prophylactic study), a Treatment Period in which participants will receive open-label deucrictibant extended-release tablet once daily for approximately 240 weeks, followed by an End of Study visit after maximum 4 weeks. Participants will undergo regular safety (e.g. lab draws) and efficacy assessments, will complete an electronic diary, and also complete questionnaires at predefined timepoints during the study.

02

Conditions studied

  • Hereditary Angioedema (HAE)

Keywords

  • HAE
  • Oral Treatment
  • Bradykinin B2 Receptor Antagonists
  • PHVS719
  • PHA121
  • Deucrictibant
  • Prophylaxis
03

In context

Angioedemas, Hereditary

171 studies on the registry are indexed under Angioedemas, Hereditary; 24 are open to participants now.

This study's planned enrollment of 170 is above the median of 48 across 116 interventional studies indexed under Angioedemas, Hereditary.

Browse Angioedemas, Hereditary studies →

Lead sponsor

Pharvaris Netherlands B.V. is the lead sponsor of 8 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Provision of the signed ICF by the participant and/or legally designated representative.
  2. Male or female, aged ≥12 years at the time of providing written /assent.
  3. Diagnosis of hereditary angioedema (HAE)
  4. For participants that did not participate in a previous deucrictibant prophylactic study: history of at least 1 attack in the last 3 consecutive months prior to Screening
  5. Reliable access and ability to use standard of care on-demand treatments to effectively manage acute HAE attacks.
  6. Willing and able to adhere to all protocol requirements, including the participant being capable of and compliant with data recording into an eDiary.
  7. Female participants of childbearing age must agree to the protocol specified pregnancy testing and methods.

Exclusion criteria

Exclusion Criteria:

  1. Any diagnosis of angioedema other than HAE
  2. Participation in a clinical study with any other drug within the last 30 days or within 5 half-lives of the investigational drug at ICF signature (whichever is longer)
  3. Prior gene therapy for any indication at any time
  4. Participants who discontinued from previous studies with deucrictibant prophylactic and/or on-demand treatment due to safety reasons or compliance issues that, in the opinion of the Investigator, would interfere with the participant's safety or compliance to participate in the study
  5. Exposure to angiotensin-converting enzyme (ACE) inhibitors or any estrogen-containing medications with systemic absorption (such as oral or hormonal replacement therapy) within 4 weeks of Screening
  6. Use of prophylactic treatment for HAE within 2 weeks of Screening for C1INH, oral kallikrein inhibitors, or anti-fibrinolytics; within 4 weeks of Screening for attenuated androgens; within 5 half-lives of Screening for monoclonal antibodies, or within 7 days of Screening for short-term prophylaxis
  7. Any females who are pregnant, plan to become pregnant, or are currently breast-feeding
  8. Abnormal hepatic function
  9. Moderate or severe renal impairment
  10. Any comorbidity or systemic dysfunction that would interfere with the participant's safety or ability to participate in the study.
  11. History of alcohol or drug abuse within the previous year, or current evidence of substance dependence or abuse
  12. Use of medications that are moderate and strong inhibitors or strong inducers of within the last 30 days or within 5 half-lives (whichever is longer) of the time of enrollment.
  13. Known to deucrictibant or any of the of the study drug
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
170 participants (estimated)

Study arms

  • Experimental
    Deucrictibant

    Deucrictibant

    Drug: Deucrictibant

Interventions

  • Deucrictibant extended-release tablet for once daily oral use

06

What researchers measure

Primary outcomes

  1. Number of participants with treatment-emergent adverse events (TEAEs), including serious adverse events (SAEs), adverse events of special interest (AESIs), and TEAEs leading to study drug discontinuation

    Time frame: Up to Week 240

  2. Change in heart rate

    Time frame: Up to Week 240

  3. Change in blood pressure

    Time frame: Up to Week 240

  4. Change in body temperature

    Time frame: Up to Week 240

  5. Number of participants with clinically significant changes in Hematology

    Blood samples will be collected for the analysis of hematology parameters.

    Time frame: Up to Week 240

  6. Number of participants with clinically significant changes in Clinical Chemistry

    Blood samples will be collected for the analysis of clinical chemistry parameters.

    Time frame: Up to Week 240

  7. Number of participants with clinically significant changes in Urinalysis

    Urine samples will be collected for the analysis of urinalysis parameters.

    Time frame: Up to Week 240

  8. Change from Baseline electrocardiograms (ECGs)

    Digital triplicate 12-lead ECG. Descriptive in nature, no formal statistical hypothesis testing will be performed.

    Time frame: Up to Week 240

Secondary outcomes

  1. Time-normalized number of Investigator-confirmed HAE attacks during the Treatment Period

    Time frame: Up to Week 240

  2. Time-normalized number of Investigator-confirmed HAE attacks treated with on-demand medication during the Treatment Period

    Time frame: Up to Week 240

  3. Time-normalized number of Investigator-confirmed moderate or severe HAE attacks during Treatment Period

    Time frame: Up to Week 240

  4. Time-normalized number of Investigator-confirmed severe HAE attacks during the Treatment Period

    Time frame: Up to Week 240

  5. Proportion of time without angioedema symptoms during the Treatment Period

    Time frame: Up to Week 240

  6. Patient reported outcome: Angioedema Quality of Life (AE-QoL) questionnaire

    The AE-QoL is a short 17-item questionnaire designed to retrospectively assess HRQoL, with a recall period of 4 weeks. Its results can be displayed as a total score or as 4 domain scores. The scores range from 0 to 100, after linear transformation of raw values, with higher scores indicating higher HRQoL impairment.

    Time frame: Up to Week 132

  7. Patient reported outcome: Patient Global Assessment of Change (PGA-Change)

    PGA-Change assesses on a 5-point scale how the participant's QoL has been impacted by HAE since start taking the study drug.

    Time frame: Up to Week 132

  8. Patient reported outcome: Angioedema Control Test 4-week version (AECT-4wk)

    AECT-4wk measures disease control retrospectively, it comprises 4 questions over a 4-week recall period. Scores for the responses in the AECT range from 0 to 16, with higher scores indicating better disease control (≤ 9 poorly controlled; ≥ 10 well controlled).

    Time frame: Up to Week 132

  9. Patient reported outcome: Work Productivity and Activity Impairment Questionnaire - Specific Health Problem (WPAI-SHP)

    WPAI-SHP is a questionnaire assessing how a health condition impacts a person's ability to work and do regular activities and it includes 4 domains. Scores indicate the percentage of time the patient missed work or was less productive owing to HAE-related complications.

    Time frame: Up to Week 132

  10. Patient reported outcome: Abbreviated Treatment Satisfaction Questionnaire for Medication (TSQM-9)

    TSQM-9 is a 9-item questionnaire evaluating patient treatment satisfaction and it includes 3 domains. Scoring is by domain and each domain score is computed by summing the individual TSQM items in each domain and then transforming the composite score into a value ranging from 0 to 100, with higher scores indicating higher satisfaction.

    Time frame: Up to Week 132

  11. Pharmacokinetics [PK]: Pre-dose plasma concentration of deucrictibant and deucrictibant metabolites (Ctrough)

    Time frame: Up to Week 96

  12. Pharmacokinetics [PK]: Urine concentration of deucrictibant and deucrictibant metabolites

    Time frame: Up to Week 48

07

Study locations

67 sites
  • Study Site
    Birmingham, Alabama 35209, United States
  • Study Site
    Scottsdale, Arizona 85251, United States
  • Study Site
    Little Rock, Arkansas 72205, United States
  • Study Site
    San Diego, California 92122, United States
  • Study Site
    Santa Monica, California 90404, United States
  • Study Site
    Walnut Creek, California 94598, United States
  • Study Site
    Colorado Springs, Colorado 80907, United States
  • Study Site
    Wheaton, Illinois 20902, United States
  • Study Site
    St Louis, Missouri 63141, United States
  • Study Site
    Las Vegas, Nevada 89128-0450, United States
  • Study Site
    Hershey, Pennsylvania 17033, United States
  • Study Site
    Dallas, Texas 75231, United States
  • Study Site
    Milwaukee, Wisconsin 53226-3067, United States
  • Study Site
    Corrientes, Argentina
  • Study Site
    Pilar, Argentina
  • Study Site
    Salta, Argentina
  • Study Site
    Box Hill, 3128, Australia
  • Study Site
    Parkville, Australia
  • Study Site
    Perth, Australia
  • Study Site
    Sydney, Australia
  • Study Site
    Vienna, Austria
  • Study Site
    Ribeirão Preto, Brazil
  • Study Site
    Salvador, Brazil
  • Study Site
    Santo André, Brazil
  • Study Site
    São Paulo, 01454010, Brazil
  • Study Site
    São Paulo, 14051-140, Brazil
  • Study Site
    Sofia, Bulgaria
  • Study Site
    Edmonton, Canada
  • Study Site
    Montreal, Canada
  • Study Site
    Beijing, China
  • Study Site
    Grenoble, France
  • Study Site
    Berlin, Germany
  • Study Site
    Frankfurt, Germany
  • Study Site
    Munich, Germany
  • Study Site
    Hong Kong, Hong Kong
  • Study Site
    Budapest, Hungary
  • Study Site
    Dublin, Ireland
  • Study Site
    Milan, Italy
  • Study Site
    Padova, Italy
  • Study Site
    Palermo, Italy
  • Study Site
    Roma, Italy
  • Study Site
    Fukuoka, Japan
  • Study Site
    Hiroshima, Japan
  • Study Site
    Kanagawa, Japan
  • Study Site
    Osaka, Japan
  • Study Site
    Tokyo, Japan
  • Study Site
    Auckland, New Zealand
  • Study Site
    Krakow, Poland
  • Study Site
    Martin, Slovakia
  • Study Site
    Cape Town, South Africa
  • Study Site
    Daegu, South Korea
  • Study Site
    Seoul, South Korea
  • Study Site
    Barcelona, 08907, Spain
  • Study Site
    Ankara, Turkey (Türkiye)
  • Study Site
    Istanbul, Turkey (Türkiye)
  • Study Site
    Izmir, Turkey (Türkiye)
  • Study Site
    Birmingham, B18 7QH, United Kingdom
  • Study Site
    Birmingham, B9 5SS, United Kingdom
  • Study Site
    Brighton, United Kingdom
  • Study Site
    Bristol, United Kingdom
  • Study Site
    Cambridge, United Kingdom
  • Study Site
    Frimley, United Kingdom
  • Study Site
    London, E1 1FR, United Kingdom
  • Study Site
    London, United Kingdom
  • Study Site
    Oxford, United Kingdom
  • Study Site
    Plymouth, United Kingdom
  • Study Site
    Southampton, United Kingdom
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 22, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06679881
Lead sponsor
Pharvaris Netherlands B.V.
Responsible party
Sponsor
First posted
Nov 8, 2024
Start date
Feb 1, 2025
Primary completion
Dec 2028 (estimated)
Completion
Dec 2028 (estimated)
Last update
Sep 22, 2026

Study contacts

Study Director, Pharvaris
study director · Pharvaris Netherlands B.V.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Deucrictibant

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