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Acquired Angioedema Due to C1-Inhibitor Deficiency (AAE-C1-INH)Phase 3CREAATENCT07266805

Study of Oral Deucrictibant XR Tablet for Prophylaxis and Deucrictibant Soft Capsule for On-Demand Treatment of Angioedema Attacks in Adults With Acquired Angioedema Due to C1 Inhibitor Deficiency

A Phase 3 study testing Deucrictibant in people with Acquired Angioedema Due to C1-Inhibitor Deficiency (AAE-C1-INH), run by Pharvaris Netherlands B.V. at 32 sites in 16 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This is a Phase 3, multicenter, 3-part study, with 2 randomized, double-blind, placebo-controlled parts and an open-label extension part, to evaluate the efficacy and safety of orally administered deucrictibant XR tablet for prophylaxis, and deucrictibant soft capsule for on-demand treatment of angioedema attacks in… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Deucrictibant
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
48 participants
Where
32 sitesin 16 countries
Study dates
16 Oct 2025to Jun 2027
Phase
Phase 3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Provision of written informed consent
  • Male or female (sex at birth) aged ≥18 years
  • Diagnosis of AAE-C1INH
  • History of AAE-C1INH attacks prior to the Screening Visit.
  • If underlying disease associated with AAE is present, the underlying disease must be stable throughout the duration of part 1.
  • Reliable access and ability to use available therapy to effectively manage AAE- C1INH attacks.
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  • Female participants of childbearing potential must agree to the protocol-specified pregnancy testing and to be abstinent from heterosexual intercourse or to use an acceptable contraception method.
  • Females of non-childbearing potential (surgically sterile, or postmenopausal with ≥ 12 months amenorrhea and postmenopausal FSH confirmation) are not required to use contraception during the study.
  • Capable of recording, without assistance, eDiary and ePRO data using an electronic device, as evidenced by the eDiary and ePRO training.

Who cannot join

  • Participation in a clinical study with any other investigational drug within the last 30 days or within 5 half-lives of the investigational drug at the Screening Visit (whichever is longer).
  • Receiving long-term prophylaxis (LTP) treatment for AAE-C1INH and satisfied with this treatment. Participants who are not satisfied (eg, tolerability issues, lack of efficacy) and have previously stopped LTP treatment for AAE-C1INH, for reasons other than participation in this study, can sign the ICF and begin the Screening Period only if their last dose of the treatment was received prior to the timepoint before the Screening Visit
  • Any females who are pregnant, plan to become pregnant, or are currently breast-feeding
  • Abnormal hepatic function
  • Moderate or severe renal impairment
  • Any clinically significant comorbidity or systemic dysfunction that would interfere with the participant's safety or ability to participate in the study.
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  • History of epilepsy and/or other significant neurological diseases
  • Any clinically significant and uncontrolled gastrointestinal dysfunction that may impact study drug absorption
  • Evidence of current alcohol or drug abuse
  • Use of medications that are moderate and strong inhibitors of cytochrome P450 (CYP) 3A4, or strong inducers of CYP3A4 within the last 30 days or within 5 half-lives (whichever is longer) at the time of the Screening Visit
  • Known hypersensitivity to deucrictibant or any of the excipients of the study drug
  • Use of angiotensin-converting enzyme (ACE) inhibitors or any estrogen-containing medications with systemic absorption within 5 half-lives before the Screening Visit

Trial locations and contacts

32 sites in 16 countries. Contact the study team or a site near you to ask about taking part.

Pharvaris Clinical Team contact

0031-712-036-410

clinicaltrials@pharvaris.com

32 sites in 16 countries

United Kingdom6 sites, 6 recruiting
  • Study Site

    Bristol

    Recruiting
  • Study Site

    Cambridge

    Recruiting
  • Study Site

    Leicester

    Recruiting
  • Study Site

    London

    Recruiting
  • Study Site

    Newcastle upon Tyne

    Recruiting
  • Study Site

    Plymouth

    Recruiting

Other trials in United Kingdom

Italy5 sites, 5 recruiting
  • Study Site 1

    Milan

    Recruiting
  • Study Site 2

    Milan

    Recruiting
  • Study Site 3

    Milan

    Recruiting
  • Study Site

    Padova

    Recruiting
  • Study Site

    Roma

    Recruiting

Other trials in Italy

United States4 sites, 4 recruiting
  • Study Site

    Hershey, Pennsylvania, 17033

    Recruiting
  • Study Site

    San Diego, California, 92093

    Recruiting
  • Study Site

    St Louis, Missouri, 63130

    Recruiting
  • Study Site

    Walnut Creek, California, 94598,

    Recruiting

Other trials in United States

France3 sites, 3 recruiting
  • Study Site

    Grenoble

    Recruiting
  • Study Site

    Lille

    Recruiting
  • Study Site

    Paris

    Recruiting

Other trials in France

Germany3 sites, 3 recruiting
  • Study Site

    Berlin

    Recruiting
  • Study Site

    Frankfurt am Main

    Recruiting
  • Study Site

    Munich

    Recruiting

Other trials in Germany

Australia1 site, 1 recruiting
  • Study Site

    Clayton

    Recruiting

Other trials in Australia

Austria1 site, 1 recruiting
  • Study Site

    Vienna

    Recruiting

Other trials in Austria

Bulgaria1 site, 1 recruiting
  • Study Site

    Sofia

    Recruiting

Other trials in Bulgaria

Canada1 site, 1 recruiting
  • Study Site

    Edmonton

    Recruiting

Other trials in Canada

Hungary1 site, 1 recruiting
  • Study Site

    Budapest

    Recruiting

Other trials in Hungary

Netherlands1 site, 1 recruiting
  • Study Site

    Amsterdam

    Recruiting

Other trials in Netherlands

New Zealand1 site, 1 recruiting
  • Study Site

    Auckland

    Recruiting

Other trials in New Zealand

Poland1 site, 1 recruiting
  • Study Site

    Krakow

    Recruiting

Other trials in Poland

Spain1 site, 1 recruiting
  • Study Site

    Madrid

    Recruiting

Other trials in Spain

Switzerland1 site, 1 recruiting
  • Study Site

    Basel

    Recruiting

Other trials in Switzerland

Turkey (Türkiye)1 site, 1 recruiting
  • Study Site

    Ankara

    Recruiting

Other trials in Turkey (Türkiye)

About this study

Official title: A Phase 3, Randomized, Double-blind, Placebo-controlled, 3-Part Study to Evaluate the Efficacy and Safety of Orally Administered Deucrictibant XR Tablet for Prophylaxis and Deucrictibant Soft Capsule for On-demand Treatment of Angioedema Attacks in Adults With Acquired Angioedema Due to C1 Inhibitor Deficiency

This is a Phase 3, multicenter, 3-part study, with 2 randomized, double-blind, placebo-controlled parts and an open-label extension part, to evaluate the efficacy and safety of orally administered deucrictibant XR tablet for prophylaxis, and deucrictibant soft capsule for on-demand treatment of angioedema attacks in adult participants aged ≥ 18 years with AAE-C1INH.

Read the detailed description

The study consists of a Screening Period, during which eligibility is confirmed, a Part 1 Prophylaxis Double-blind Treatment Phase, a Part 2 On-demand, Double-blind Treatment Phase, and a Part 3 On-demand Open-label Extension Phase. Approximately 24 participants will be randomized in Part 1 into 2 parallel arms for a treatment period of 12 weeks. During the prophylaxis treatment period participants will receive blinded study drug (deucrictibant 40 mg XR or placebo randomized in a 1:1 ratio). Upon completion of Part 1, participants will roll-over into Part 2. In addition to rollover participants completing Part 1, new deucrictibant treatment-naïve participants will be enrolled directly into Part 2 and this may occur while Part 1 is ongoing. During the on-demand period participants will receive blinded study drug (deucrictibant 20 mg soft capsule or matching placebo randomized in a 1:1 ratio, 2-period, 2-treatment crossover design) for 2 qualifying AAE-C1INH attacks. Participants completing Part 2 may roll over into Part 3 where all AAE-C1INH attacks will be treated with open-label deucrictibant 20 mg soft capsule.

Being tested
Deucrictibant, Placebo
Keywords
Acquired Angioedema-C1-INH, AAE-C1-INH, Oral Treatment, deucrictibant, Prophylaxis, On-demand, C1-Inhibitor Deficiency, PHA121, Pharvaris, Bradykinin B2 Receptor Antagonists, Angioedema, Acquired, Acquired angioedema
Medical subject headings
Angioedemas, Hereditary, Angioedema, Acquired angioedema

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DeucrictibantDrug

    Part 1: Deucrictibant 40 mg extended-release tablet for once daily oral use

  • PlaceboDrug

    Part 1: Placebo Comparator tablet for once daily oral use

  • DeucrictibantDrug

    Part 2: Deucrictibant 20 mg soft capsule oral use

  • PlaceboDrug

    Part 2: Placebo Comparator soft capsule oral use

  • DeucrictibantDrug

    Part 3: Deucrictibant 20 mg soft capsule oral use

Study groups in NCT07266805
Study groupRoleWhat they receive
Part 1 - Arm 1 - ActiveExperimentalNot described
Receives: Drug: Deucrictibant
Part 1 - Arm 2 - PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo
Part 2 - Arm 1ExperimentalNot described
Receives: Drug: Deucrictibant; Drug: Placebo
Part 2 - Arm 2ExperimentalNot described
Receives: Drug: Deucrictibant; Drug: Placebo
Part 3 - Open-labelExperimentalNot described
Receives: Drug: Deucrictibant

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Part 1: Time-normalized number of Investigator-confirmed AAE-C1INH attacks during Treatment Phase

    Measured: 12 weeks

  2. Part 2: Time to symptom relief, Patient Global Impression of Change (PGI-C) rating of at least "better"

    Measured: 12 hours post-treatment

  3. Part 3: Incidence of treatment-emergent adverse events (TEAEs), treatment-emergent adverse events of special interest (AESIs), and serious adverse events (SAEs)

    Measured: Through study termination, an average of 36 weeks

  4. Part 3: Number of participants with clinically significant changes from baseline in Hematology parameters

    Measured: Through study termination, an average of 36 weeks

  5. Part 3: Number of participants with clinically significant changes from baseline in Urinalysis parameters

    Measured: Through study termination, an average of 36 weeks

  6. Part 3: Number of participants with clinically significant changes from baseline in Biochemistry parameters

    Measured: Through study termination, an average of 36 weeks

  7. Part 3: Number of participants with clinically significant changes from baseline in vital signs

    Measured: Through study termination, an average of 36 weeks

  8. Part 3: Number of participants with clinically significant changes from baseline in physical examinations

    Measured: Through study termination, an average of 36 weeks

  9. Part 3: Number of participants with clinically significant changes in electrocardiogram (ECG)

    Measured: Through study termination, an average of 36 weeks

Secondary outcomes (36)
  1. Part 1: Proportion of participants who are AAE-C1INH attack-free during Treatment Phase

    Measured: 12 weeks

  2. Part 1: Time-normalized number of Investigator-confirmed AAE-C1INH attacks treated with on-demand medication during Treatment Phase

    Measured: 12 weeks

  3. Part 1: Time-normalized number of Investigator-confirmed moderate or severe AAE-C1INH attacks during Treatment Phase

    Measured: 12 weeks

  4. Part 1: Time-normalized number of Investigator-confirmed severe AAE-C1INH attacks during Treatment Phase

    Measured: 12 weeks

  5. Part 1: Proportion of participants achieving ≥50%, ≥70% and ≥90% reduction in AAE-C1NH attack rate relative to baseline during Treatment Phase

    Measured: 12 weeks

  6. Part 1: Incidence of TEAEs, treatment-emergent AESIs, and SAEs

    Measured: 12 weeks

  7. Part 1: Number of participants with clinically significant changes from baseline in Hematology parameters

    Measured: 12 weeks

  8. Part 1: Number of participants with clinically significant changes from baseline in Urinalysis parameters

    Measured: 12 weeks

  9. Part 1: Number of participants with clinically significant changes from baseline in Biochemistry parameters

    Measured: 12 weeks

  10. Part 1: Number of participants with clinically significant changes from baseline in Vital signs

    Measured: 12 weeks

  11. Part 1: Number of participants with clinically significant changes from baseline in physical examination

    Measured: 12 weeks

  12. Part 1: Number of participants with clinically significant changes from baseline in ECG parameters

    Measured: 12 weeks

  13. Part 1: Pre-dose plasma concentrations of Deucrictibant

    Deucrictibant plasma concentrations will be analyzed using liquid chromatography-mass spectrometry/mass spectrometry methods

    Measured: At Weeks 6 and 12

  14. Part 1: Pre-dose plasma concentrations of deucrictibant metabolites

    Deucrictibant metabolites plasma concentrations will be analyzed using liquid chromatography-mass spectrometry/mass spectrometry methods

    Measured: At Weeks 6 and 12

  15. Part 1: Pharmacokinetics [PK]: Urine concentrations of Deucrictibant and deucrictibant metabolites

    Measured: At Week 12

  16. Part 1: Change from baseline in Angioedema Quality of Life (AE-QoL) questionnaire total score, functioning domain score, and fears/shame domain score

    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.

    Measured: Baseline (Day 1) and at Weeks 4, 8 and 12

  17. Part 1: Change from baseline in 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)

    Measured: Baseline (Day 1) and at Week 12

  18. Part 1: Patient Global Assessment-Status (PGA-S) at baseline

    PGA-Status assesses on a 5-point scale how the participant's QoL has been impacted by AAE-C1INH since start taking the study drug

    Measured: At Baseline (Day 1)

  19. Part 1: Patient Global Assessment of Change (PGA-Change) at Week 12

    PGA-Change assesses on a 5-point scale how the participant's QoL has been impacted by AAE-C1INH since start taking the study drug

    Measured: At Week 12

  20. Part 1: Change from baseline in EuroQol 5 Dimension 5 level (EQ 5D 5L)

    EQ 5D 5L is a brief, multiattribute, generic, health status measure composed of 5 questions with Likert response options (descriptive system) and a visual analog scale (EQ-VAS). The latter asks patients to rate their own health from 0 to 100 (the worst and best imaginable health, respectively)

    Measured: Baseline (Day 1) and at Week 12

  21. Part 2: Time to complete symptom resolution, Patient Global Impression of Severity (PGI-S) rating of "no symptoms

    Measured: sustained within 24 hours post-treatment

  22. Part 2: Time to symptom relief defined as PGI-S rating of at least 1 point reduction

    Measured: 12 hours post-treatment

  23. Part 2: Proportion of study drug-treated attacks achieving complete symptom resolution defined as achieving PGI- S rating of "no symptoms"

    Measured: At 24 hours post-treatment

  24. Part 2: Time to onset of symptom relief, defined as PGI-C rating of at least "a little better"

    Measured: Within 12 hours post-treatment

  25. Part 2: Time to End of Progression (EoP) in attack symptoms

    EOP is defined as the earliest post-treatment timepoint after which all subsequent PGI-C ratings are stable or improved

    Measured: Within 12 hours post-treatment

  26. Part 2: Incidence of TEAEs, treatment-emergent AESIs, and SAEs

    Measured: Up to 24 weeks

  27. Part 2: Number of participants with clinically significant changes from baseline in Hematology parameters

    Measured: 24 weeks

  28. Part 2: Number of participants with clinically significant changes from baseline in Urinalysis parameters

    Measured: 24 weeks

  29. Part 2: Number of participants with clinically significant changes from baseline in Biochemistry parameters

    Measured: 24 weeks

  30. Part 2: Number of participants with clinically significant changes from baseline in Vital signs

    Measured: 24 weeks

  31. Part 2: Number of participants with clinically significant changes from baseline in physical examination

    Measured: 24 weeks

  32. Part 2: Number of participants with clinically significant changes from baseline in ECG parameters

    Measured: 24 weeks

  33. Part 2: Pharmacokinetics [PK]: Deucrictibant and deucrictibant metabolites plasma concentration-time profiles

    Measured: Day 1

  34. Part 3: Time to symptom relief, as PGI-C rating of at least "better"

    Measured: 12 hours post-treatment

  35. Part 3: Time to symptom relief, as PGI-S rating of at least 1 point reduction

    Measured: 12 hours post-treatment

  36. Part 3: Proportion of study drug-treated attacks achieving complete symptom resolution, defined as achieving PGI-S rating of "no symptoms"

    Measured: 24 hours post-treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Dec 2025
  2. Study start16 Oct 2025
  3. Primary completionJun 2027 (estimated)
  4. Study completionJun 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Part 1 is parallel Part 2 is crossover Part 3 is single group
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
48 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07266805
Sponsor's protocol ID
PHA022121-C308
Acronym
CREAATE
Status last verified
Sep 2026
First submitted
20 Oct 2025
Last updated
21 Sep 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Deucrictibant in people with Acquired Angioedema Due to C1-Inhibitor Deficiency (AAE-C1-INH), run by Pharvaris Netherlands B.V. at 32 sites in 16 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 21 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 32 sites in United Kingdom, Italy, United States, France, Germany and 11 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Pharvaris Clinical Team (0031-712-036-410, clinicaltrials@pharvaris.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Part 1: Time-normalized number of Investigator-confirmed AAE-C1INH attacks during Treatment Phase (time frame: 12 weeks). The study lists 9 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Sep 2026.

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