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 (CREAATE)

September 16, 2026 updated by: Pharvaris Netherlands B.V.

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.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

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.

Study Type

Interventional

Enrollment (Estimated)

48

Phase

  • Phase 3

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 Locations

      • Clayton, Australia
        • Recruiting
        • Study Site
      • Vienna, Austria
        • Recruiting
        • Study Site
      • Sofia, Bulgaria
        • Recruiting
        • Study Site
      • Edmonton, Canada
        • Recruiting
        • Study Site
      • Grenoble, France
        • Recruiting
        • Study Site
      • Lille, France
        • Recruiting
        • Study Site
      • Paris, France
        • Recruiting
        • Study Site
      • Berlin, Germany
        • Recruiting
        • Study Site
      • Frankfurt am Main, Germany
        • Recruiting
        • Study Site
      • Munich, Germany
        • Recruiting
        • Study Site
      • Budapest, Hungary
        • Recruiting
        • Study Site
      • Milan, Italy
        • Recruiting
        • Study Site 1
      • Milan, Italy
        • Recruiting
        • Study Site 2
      • Milan, Italy
        • Recruiting
        • Study Site 3
      • Padova, Italy
        • Recruiting
        • Study Site
      • Roma, Italy
        • Recruiting
        • Study Site
      • Amsterdam, Netherlands
        • Recruiting
        • Study Site
      • Auckland, New Zealand
        • Recruiting
        • Study Site
      • Krakow, Poland
        • Recruiting
        • Study Site
      • Madrid, Spain
        • Recruiting
        • Study Site
      • Basel, Switzerland
        • Recruiting
        • Study Site
      • Ankara, Turkey (Türkiye)
        • Recruiting
        • Study Site
      • Bristol, United Kingdom
        • Recruiting
        • Study Site
      • Cambridge, United Kingdom
        • Recruiting
        • Study Site
      • Leicester, United Kingdom
        • Recruiting
        • Study Site
      • London, United Kingdom
        • Recruiting
        • Study Site
      • Newcastle upon Tyne, United Kingdom
        • Recruiting
        • Study Site
      • Plymouth, United Kingdom
        • Recruiting
        • Study Site
    • California
      • San Diego, California, United States, 92093
        • Recruiting
        • Study Site
      • Walnut Creek, California, United States, 94598,
        • Recruiting
        • Study Site
    • Missouri
      • St Louis, Missouri, United States, 63130
        • Recruiting
        • Study Site
    • Pennsylvania
      • Hershey, Pennsylvania, United States, 17033
        • Recruiting
        • Study 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

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 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.
  • 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.

Exclusion Criteria:

  • 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.
  • 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

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Part 1 - Arm 1 - Active

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

Part 2: Deucrictibant 20 mg soft capsule oral use

Part 3: Deucrictibant 20 mg soft capsule oral use

Placebo Comparator: Part 1 - Arm 2 - Placebo

Part 1: Placebo Comparator tablet for once daily oral use

Part 2: Placebo Comparator soft capsule oral use

Experimental: Part 2 - Arm 1

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

Part 2: Deucrictibant 20 mg soft capsule oral use

Part 3: Deucrictibant 20 mg soft capsule oral use

Part 1: Placebo Comparator tablet for once daily oral use

Part 2: Placebo Comparator soft capsule oral use

Experimental: Part 2 - Arm 2

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

Part 2: Deucrictibant 20 mg soft capsule oral use

Part 3: Deucrictibant 20 mg soft capsule oral use

Part 1: Placebo Comparator tablet for once daily oral use

Part 2: Placebo Comparator soft capsule oral use

Experimental: Part 3 - Open-label

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

Part 2: Deucrictibant 20 mg soft capsule oral use

Part 3: Deucrictibant 20 mg soft capsule oral use

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Part 1: Time-normalized number of Investigator-confirmed AAE-C1INH attacks during Treatment Phase
Time Frame: 12 weeks
12 weeks
Part 2: Time to symptom relief, Patient Global Impression of Change (PGI-C) rating of at least "better"
Time Frame: 12 hours post-treatment
12 hours post-treatment
Part 3: Incidence of treatment-emergent adverse events (TEAEs), treatment-emergent adverse events of special interest (AESIs), and serious adverse events (SAEs)
Time Frame: Through study termination, an average of 36 weeks
Through study termination, an average of 36 weeks
Part 3: Number of participants with clinically significant changes from baseline in Hematology parameters
Time Frame: Through study termination, an average of 36 weeks
Through study termination, an average of 36 weeks
Part 3: Number of participants with clinically significant changes from baseline in Urinalysis parameters
Time Frame: Through study termination, an average of 36 weeks
Through study termination, an average of 36 weeks
Part 3: Number of participants with clinically significant changes from baseline in Biochemistry parameters
Time Frame: Through study termination, an average of 36 weeks
Through study termination, an average of 36 weeks
Part 3: Number of participants with clinically significant changes from baseline in vital signs
Time Frame: Through study termination, an average of 36 weeks
Through study termination, an average of 36 weeks
Part 3: Number of participants with clinically significant changes from baseline in physical examinations
Time Frame: Through study termination, an average of 36 weeks
Through study termination, an average of 36 weeks
Part 3: Number of participants with clinically significant changes in electrocardiogram (ECG)
Time Frame: Through study termination, an average of 36 weeks
Through study termination, an average of 36 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Part 1: Proportion of participants who are AAE-C1INH attack-free during Treatment Phase
Time Frame: 12 weeks
12 weeks
Part 1: Time-normalized number of Investigator-confirmed AAE-C1INH attacks treated with on-demand medication during Treatment Phase
Time Frame: 12 weeks
12 weeks
Part 1: Time-normalized number of Investigator-confirmed moderate or severe AAE-C1INH attacks during Treatment Phase
Time Frame: 12 weeks
12 weeks
Part 1: Time-normalized number of Investigator-confirmed severe AAE-C1INH attacks during Treatment Phase
Time Frame: 12 weeks
12 weeks
Part 1: Proportion of participants achieving ≥50%, ≥70% and ≥90% reduction in AAE-C1NH attack rate relative to baseline during Treatment Phase
Time Frame: 12 weeks
12 weeks
Part 1: Incidence of TEAEs, treatment-emergent AESIs, and SAEs
Time Frame: 12 weeks
12 weeks
Part 1: Number of participants with clinically significant changes from baseline in Hematology parameters
Time Frame: 12 weeks
12 weeks
Part 1: Number of participants with clinically significant changes from baseline in Urinalysis parameters
Time Frame: 12 weeks
12 weeks
Part 1: Number of participants with clinically significant changes from baseline in Biochemistry parameters
Time Frame: 12 weeks
12 weeks
Part 1: Number of participants with clinically significant changes from baseline in Vital signs
Time Frame: 12 weeks
12 weeks
Part 1: Number of participants with clinically significant changes from baseline in physical examination
Time Frame: 12 weeks
12 weeks
Part 1: Number of participants with clinically significant changes from baseline in ECG parameters
Time Frame: 12 weeks
12 weeks
Part 1: Pre-dose plasma concentrations of Deucrictibant
Time Frame: At Weeks 6 and 12

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

At Weeks 6 and 12
Part 1: Pre-dose plasma concentrations of deucrictibant metabolites
Time Frame: At Weeks 6 and 12

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

At Weeks 6 and 12
Part 1: Pharmacokinetics [PK]: Urine concentrations of Deucrictibant and deucrictibant metabolites
Time Frame: At Week 12
At Week 12
Part 1: Change from baseline in Angioedema Quality of Life (AE-QoL) questionnaire total score, functioning domain score, and fears/shame domain score
Time Frame: Baseline (Day 1) and at Weeks 4, 8 and 12

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.

Baseline (Day 1) and at Weeks 4, 8 and 12
Part 1: Change from baseline in Angioedema Control Test 4-week version (AECT-4wk)
Time Frame: Baseline (Day 1) and at Week 12

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)

Baseline (Day 1) and at Week 12
Part 1: Patient Global Assessment-Status (PGA-S) at baseline
Time Frame: At Baseline (Day 1)

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

At Baseline (Day 1)
Part 1: Patient Global Assessment of Change (PGA-Change) at Week 12
Time Frame: 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

At Week 12
Part 1: Change from baseline in EuroQol 5 Dimension 5 level (EQ 5D 5L)
Time Frame: Baseline (Day 1) and at Week 12

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)

Baseline (Day 1) and at Week 12
Part 2: Time to complete symptom resolution, Patient Global Impression of Severity (PGI-S) rating of "no symptoms
Time Frame: sustained within 24 hours post-treatment
sustained within 24 hours post-treatment
Part 2: Time to symptom relief defined as PGI-S rating of at least 1 point reduction
Time Frame: 12 hours post-treatment
12 hours post-treatment
Part 2: Proportion of study drug-treated attacks achieving complete symptom resolution defined as achieving PGI- S rating of "no symptoms"
Time Frame: At 24 hours post-treatment
At 24 hours post-treatment
Part 2: Time to onset of symptom relief, defined as PGI-C rating of at least "a little better"
Time Frame: Within 12 hours post-treatment
Within 12 hours post-treatment
Part 2: Time to End of Progression (EoP) in attack symptoms
Time Frame: Within 12 hours post-treatment

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

Within 12 hours post-treatment
Part 2: Incidence of TEAEs, treatment-emergent AESIs, and SAEs
Time Frame: Up to 24 weeks
Up to 24 weeks
Part 2: Number of participants with clinically significant changes from baseline in Hematology parameters
Time Frame: 24 weeks
24 weeks
Part 2: Number of participants with clinically significant changes from baseline in Urinalysis parameters
Time Frame: 24 weeks
24 weeks
Part 2: Number of participants with clinically significant changes from baseline in Biochemistry parameters
Time Frame: 24 weeks
24 weeks
Part 2: Number of participants with clinically significant changes from baseline in Vital signs
Time Frame: 24 weeks
24 weeks
Part 2: Number of participants with clinically significant changes from baseline in physical examination
Time Frame: 24 weeks
24 weeks
Part 2: Number of participants with clinically significant changes from baseline in ECG parameters
Time Frame: 24 weeks
24 weeks
Part 2: Pharmacokinetics [PK]: Deucrictibant and deucrictibant metabolites plasma concentration-time profiles
Time Frame: Day 1
Day 1
Part 3: Time to symptom relief, as PGI-C rating of at least "better"
Time Frame: 12 hours post-treatment
12 hours post-treatment
Part 3: Time to symptom relief, as PGI-S rating of at least 1 point reduction
Time Frame: 12 hours post-treatment
12 hours post-treatment
Part 3: Proportion of study drug-treated attacks achieving complete symptom resolution, defined as achieving PGI-S rating of "no symptoms"
Time Frame: 24 hours post-treatment
24 hours post-treatment

Collaborators and Investigators

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

Sponsor

Investigators

  • Study Director: Study Director, Pharvaris, Pharvaris Netherlands B.V.

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)

October 16, 2025

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2027

Study Registration Dates

First Submitted

October 20, 2025

First Submitted That Met QC Criteria

November 25, 2025

First Posted (Actual)

December 5, 2025

Study Record Updates

Last Update Posted (Actual)

September 21, 2026

Last Update Submitted That Met QC Criteria

September 16, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

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