CClinicalTrials.gg
CompletedNCT02865720Updated Jun 2, 2021Results posted

Study of C1 Inhibitor (Human) for the Prevention of Angioedema Attacks and Treatment of Breakthrough Attacks in Japanese Subjects With Hereditary Angioedema (HAE)

A Phase 3 interventional study of CINRYZE 500 U and CINRYZE 1000 U in Hereditary Angioedema (HAE), sponsored by Shire. Completed at 10 sites in Japan. Open to participants aged 2 Years and older. Per ClinicalTrials.gov, last updated 2021-06-02.

Sponsored by Shire · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
8
Allocation
Non-randomized
Ages
2 Years and older
Sex
All
01

Study summary

The purpose of this study is to determine if an investigational treatment is safe and well tolerated when administered by intravenous (IV) infusion in Japanese subjects with HAE.

02

Conditions studied

  • Hereditary Angioedema (HAE)
03

In context

Angioedema

164 studies on the registry are indexed under Angioedema; 19 are open to participants now.

This study's enrollment of 8 is below the median of 44 across 111 interventional studies indexed under Angioedema.

Browse Angioedema studies →

Lead sponsor

Shire is the lead sponsor of 346 studies on the registry; 2 are open to participants now.

Of its 47 completed or terminated interventional studies of FDA-regulated products, 47 (100%) have results posted.

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

04

Who can participate

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

Inclusion criteria

  1. Be of Japanese descent, defined as born in Japan and having Japanese parents and Japanese maternal and paternal grandparents.
  2. Be ≥2 years of age.
  3. Meet the following minimum body weight criteria:

    • Subjects 2 to 5 years of age must weigh at least 12.5 kg; and
    • Subjects 6 years of age and above must weigh at least 25 kg.
  4. Have a confirmed diagnosis of Type I or Type II HAE. NOTE: Diagnosis may be based on historical data including family history, clinical symptoms (characteristic attacks), or documentation of low level of C1 INH protein and/or C1 INH activity.
  5. Have a history of at least one angioedema attack per month (on average) during the 3 consecutive months immediately before enrollment.
  6. Agree to adhere to the protocol-defined schedule of assessments and procedures.
  7. Agree to avoid his/her known angioedema attack triggers during the study to the best of his/her ability.
  8. If a female of reproductive age, be postmenopausal (≥12 months following cessation of menstruation), surgically sterile, or following an acceptable method of birth control (and agree to continue its use through 1 month after the last dose of study drug):

    • Non-hormonal methods (eg, abstinence, barrier control) for at least 1 complete menstrual cycle before the Screening Visit.
    • Stable doses of estrogen and/or progestin containing products for at least 2 months before the Screening Visit.
  9. If a male of reproductive age, be surgically sterile or agree to follow an acceptable method of birth control (eg, abstinence, barrier control) from the Screening Visit through 2 months after the last dose of study drug.
  10. If an adult, be informed of the nature of the study and provide written informed consent before any study-specific procedures are performed.

OR If a child or minor (\<20 years of age), have a parent/legal guardian who is informed of the nature of the study provide written informed consent (ie, permission) for the child to participate in the study before any study-specific procedures are performed. Assent will be obtained from children ≥14 years of age.

Exclusion criteria

Exclusion Criteria:

  1. Have a history of hypercoagulability (abnormal blood clotting).
  2. Have a diagnosis of acquired angioedema or be known to have C1 INH antibodies.
  3. Have a history of allergic reaction to C1 INH products, including CINRYZE (or any of the components of CINRYZE) or other blood products.
  4. Have received C1 INH therapy or any blood products within 3 days before the first dose of study drug.
  5. Have had signs or symptoms of an angioedema attack within 2 days before the first dose of study drug.
  6. Have any change (start, stop, or change in dose) in androgen therapy (eg, danazol, oxandrolone, stanozolol, testosterone), tranexamic acid, epsilon-aminocaproic acid (EACA), or other antifibrinolytics within 14 days before the first dose of study drug.
  7. If female, have started taking or changed the dose of any hormonal contraceptive regimen or hormone replacement therapy (eg, estrogen/progestin containing products) within 2 months before the first dose of study drug.
  8. Be pregnant or breastfeeding.
  9. Have received an investigational drug other than those required for prevention or treatment of angioedema attacks within 30 days before the first dose of study drug.
  10. Have, as determined by the Investigator and/or the Sponsor's Medical Monitor, any surgical or medical condition that could interfere with the administration of study drug or interpretation of study results.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
8 participants (actual)

Study arms

  • Experimental
    Subjects 2 to 5 years of age

    500 U of CINRYZE will be administered by IV infusion twice weekly for 12 weeks

    Drug: CINRYZE 500 U

  • Experimental
    Subjects 6 years of age and older

    1000 U of CINRYZE will be administered by IV infusion twice weekly for 12 weeks.

    Drug: CINRYZE 1000 U

Interventions

  • DrugCINRYZE 500 U

    IV infusion administered twice weekly

  • DrugCINRYZE 1000 U

    IV infusion administered twice weekly

06

What researchers measure

Primary outcomes

  1. Number of Participants With Treatment-emergent Adverse Events (TEAEs)

    An adverse event (AE) was defined as any untoward medical occurrence in a clinical investigation participant administered an investigational product and that did not necessarily have a causal relationship with the treatment. TEAEs were defined as all AEs that started during the treatment period and up to 7 days after the last dose of investigational product, or AEs that were seen at baseline but worsened in frequency and/or severity during the treatment period and up to 7 days after the last dose of investigational product.

    Time frame: From start of study drug administration up to Week 12

  2. Number of Participants With Clinically Significant Abnormalities in Physical Examination Reported as Adverse Events (AEs)

    Physical examinations included measurement of body weight and height. Clinically significant abnormalities related to physical examination as determined by investigator were recorded and reported as AE.

    Time frame: From start of study drug administration up to Week 12

  3. Number of Participants With Potentially Clinically Important (PCI) Vital Signs Reported as Adverse Events (AEs)

    Vital sign assessments included systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse rate. Investigator used both absolute values and change from baseline values to determine if the vital sign was potentially clinically important. Criteria for the potential clinical importance of both absolute and change from baseline values were pre-specified as: SBP (less than \[\<\] 90 millimeter of mercury \[mmHg\]; greater than or equal to \[\>=\] 140 mmHg), DBP (\< 60 mmHg; \>=90 mmHg) and pulse (less than or equal to \[\<=\] 50 beats per minute \[bpm\]; \>= 100 bpm. A participant's vital sign had to meet both the absolute and change from baseline criteria to be considered as potentially clinically important.

    Time frame: Baseline up to Week 12

  4. Number of Participants With Potentially Clinically Important (PCI) Clinical Laboratory Assessments Reported as Adverse Events (AEs)

    Number of participants with potentially clinically important (PCI) clinical laboratory assessments reported as adverse events were reported.

    Time frame: Baseline up to Week 12

  5. Concentration of C1 Esterase Inhibitor (C1 INH) Antigen (Protein Volume) at Week 1

    C1 INH antigen concentration in plasma was determined using an automated nephelometric assay.

    Time frame: Week 1: Pre-dose, 0.5, 1, 2, 6, 24, 48, 72 and 96 hours (h) post-dose

  6. Concentration of C1 Esterase Inhibitor (C1 INH) Antigen (Protein Volume) at Week 12

    C1 INH antigen concentration in plasma was determined using an automated nephelometric assay.

    Time frame: Week 12: Pre-dose, 0.5, 1, 2, 6, 24, 48, 72 and 96 h post-dose

  7. Concentration of Plasma Complement C4 at Week 1

    Concentration of plasma complement C4 was reported.

    Time frame: Week 1: Pre-dose, 0.5, 1, 2, 6, 24, 48, 72 and 96 h post-dose

  8. Concentration of Plasma Complement C4 at Week 12

    Concentration of plasma complement C4 was reported.

    Time frame: Week 12: Pre-dose, 0.5, 1, 2, 6, 24, 48, 72 and 96 h post-dose

  9. Concentration of Plasma Complement C1q at Week 1

    Concentration of plasma complement C1q was reported.

    Time frame: Baseline (Week 1)

  10. Normalized Number of Angioedema Attacks (NNA) Per Month

    Angioedema attack was defined as any participant-reported (or caregiver-reported) indication of swelling or pain at any location following a report of no swelling or pain on the previous day (that is, there must have been a full symptom-free calendar day preceding the onset of symptoms for an attack to be considered a new attack). NNA was calculated as the overall number of angioedema attacks recorded during the period divided by the number of days in the period and multiplied by 30.4.Number of attacks was normalized for the number of days participants participated in a given period and expressed as the monthly frequency as compared to the historical data where, NNA was the number of angioedema attacks during 3 months prior to study drug administration. Historical data was obtained from medical or angioedema history electronic case report forms (eCRF).

    Time frame: Baseline up to Week 12

  11. Number of Participants With Angioedema Attacks in Different Anatomic Locations

    Anatomic locations where there was a presence of pain or swelling of any level of severity; mild, moderate or severe at any day during the attack were reported. Mild: the attack symptoms were noticeable but were easily tolerated by the participant and did not interfere with the participant's daily activities. Moderate: the attack symptoms interfered with the participant's ability to attend work/school or participate in family life and social/recreational activities and severe: the attack symptoms significantly limited the participant's ability to attend work/school or participate in family life and social/recreational activities. Number of participants with angioedema attacks in different anatomic locations in treatment period was compared to NNA for historical data. Historical data was based on the typical location of angioedema attacks in the 3 months prior to study drug administration. Here, H refers to historical and T refers to treatment.

    Time frame: Baseline up to Week 12

  12. Average Severity (Intensity) of Angioedema Attacks

    All attacks in each therapy period were assigned a value of 1 (mild), 2 (moderate), or 3 (severe). Attack severity was considered the highest value assigned by the participant to any swelling location on any day during the attack. The average severity was derived by dividing the cumulative severity score by the total number of attacks. Average severity was set to 0 if there was no attack in a period. Average severity of angioedema attacks in treatment period compared to the NNA of angioedema attacks for historical data was reported. Historical data was based on the typical severity of angioedema attacks in the 3 months prior to study drug administration. Historical data was obtained from medical or angioedema history electronic case report forms (eCRF).

    Time frame: Baseline up to Week 12

  13. Average Duration of Angioedema Attacks

    Average duration of attacks was calculated by dividing the cumulative duration of attacks by the total number of attacks during the treatment period. Historical data was based on the typical severity of angioedema attacks in the 3 months prior to study drug administration. Average duration of angioedema attacks in treatment period was compared to the NNA for historical data. Historical data was obtained from medical or angioedema history eCRF.

    Time frame: Baseline up to Week 12

  14. Normalized Number of Angioedema Attacks (NNA) Per Month Treated With Rescue Medication

    The normalized number of angioedema attacks was calculated as the overall number of angioedema attacks recorded during the period divided by the number of days in the period and multiplied by 30.4. NNA treated with rescue medications were reported for CINRYZE, non-CINRYZE C1-INH or not treated with C1-INH (including attacks treated with any medications other than C1-INH or untreated attacks). CINRYZE was only considered as a rescue medication when treated for breakthrough attack treatment. For historical data, only medications taken prior to the start of drug study drug administration and had an indication of "hereditary angioedema (HAE) management - acute treatment" selected on the prior and concomitant medications and therapy were considered as rescue medications. Historical data was obtained from medical or angioedema history eCRF.

    Time frame: Baseline up to Week 12

  15. Number of Participants Achieving Clinical Responder Rate Relative to Historical Data

    Number of participants achieving at least 50 percent (%), 70% or 90% reduction in NNA relative to NNA for historical data was reported.

    Time frame: Baseline up to Week 12

  16. Change From Baseline in Angioedema Quality of Life (AE-QoL) in Treatment Period

    Angioedema quality of life (AE-QoL) questionnaire was a self-administered validated angioedema disease-specific quality of life instrument. It consisted of 17 specific questions that were associated with work, physical activity, free time, social relations, and diet. Each of the 17 items had a 5-point response scale ranging from 1 (Never) to 5 (Very Often). The questionnaire was scored according to the developers' guidelines to produce a total score and 4 domain scores (functioning, fatigue/mood, fear/shame, nutrition). Raw domain scores (mean of the item scores within each scale) and the raw total score (mean of all item scores) were rescaled using linear transformations into final percentage scores ranging 0 to 100, based on the maximum possible score, where the higher the score the greater the QoL impairment.

    Time frame: Baseline, Week 12

  17. Number of Participants With Breakthrough Angioedema Attacks

    A breakthrough attack was defined as an angioedema attack that occurs during long-term prevention therapy with CINRYZE (that is, between first study drug and last study drug dose). Number of participants with 1, 2, 3 or more angioedema attacks and who achieved initial improvement and complete resolution were also reported. Breakthrough angioedema attacks assessed by CINRYZE treatment, non-CINRYZE C1 INH treatment and untreated with C1-INH were reported. Here BAA refers to breakthrough angioedema attacks.

    Time frame: Baseline up to Week 12

  18. Time From Attack Onset to Initial Improvement and Complete Resolution

    Time to initial improvement (TII) was calculated from the time of study drug administration to initial symptom improvement. Time to complete resolution was defined as the time from the onset of attack to complete resolution of all symptoms. Time to initial improvement and time to complete resolution as assessed by CINRYZE, non-CINRYZE and untreated were reported.

    Time frame: Baseline up to Week 12

  19. Time From Onset of Attack to Time Treated by CINRYZE

    The median time from onset of attack to time treated with CINRYZE was reported.

    Time frame: Baseline up to Week 12

  20. Time From Treatment With CINRYZE to Initial Improvement

    Time to initial improvement was calculated from the time of study drug administration to initial symptom improvement. Median time from treatment with CINRYZE to initial improvement was reported.

    Time frame: Baseline up to Week 12

07

Results

Posted Dec 31, 2018

Participant flow

The study was conducted in 9 study centers in Japan between 13 Sep 2016 (First participant first visit) and 23 June 2017 (Last participant last visit).

Participant flow — Overall Study
MilestoneCINRYZE 500 UCINRYZE 1000 U
Started08
Completed08
Not completed00

Outcome measures

PrimaryNumber of Participants With Treatment-emergent Adverse Events (TEAEs)

An adverse event (AE) was defined as any untoward medical occurrence in a clinical investigation participant administered an investigational product and that did not necessarily have a causal relationship with the treatment. TEAEs were defined as all AEs that started during the treatment period and up to 7 days after the last dose of investigational product, or AEs that were seen at baseline but worsened in frequency and/or severity during the treatment period and up to 7 days after the last dose of investigational product.

Time frame:
From start of study drug administration up to Week 12
Reported as:
Count of participants · Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs)
ParticipantsCINRYZE 1000 U
Number of Participants With Treatment-emergent Adverse Events (TEAEs)7
PrimaryNumber of Participants With Clinically Significant Abnormalities in Physical Examination Reported as Adverse Events (AEs)

Physical examinations included measurement of body weight and height. Clinically significant abnormalities related to physical examination as determined by investigator were recorded and reported as AE.

Time frame:
From start of study drug administration up to Week 12
Reported as:
Count of participants · Participants
Number of Participants With Clinically Significant Abnormalities in Physical Examination Reported as Adverse Events (AEs)
ParticipantsCINRYZE 1000 U
Number of Participants With Clinically Significant Abnormalities in Physical Examination Reported as Adverse Events (AEs)0
PrimaryNumber of Participants With Potentially Clinically Important (PCI) Vital Signs Reported as Adverse Events (AEs)

Vital sign assessments included systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse rate. Investigator used both absolute values and change from baseline values to determine if the vital sign was potentially clinically important. Criteria for the potential clinical importance of both absolute and change from baseline values were pre-specified as: SBP (less than \[\<\] 90 millimeter of mercury \[mmHg\]; greater than or equal to \[\>=\] 140 mmHg), DBP (\< 60 mmHg; \>=90 mmHg) and pulse (less than or equal to \[\<=\] 50 beats per minute \[bpm\]; \>= 100 bpm. A participant's vital sign had to meet both the absolute and change from baseline criteria to be considered as potentially clinically important.

Time frame:
Baseline up to Week 12
Reported as:
Count of participants · Participants
Number of Participants With Potentially Clinically Important (PCI) Vital Signs Reported as Adverse Events (AEs)
ParticipantsCINRYZE 1000 U
Number of Participants With Potentially Clinically Important (PCI) Vital Signs Reported as Adverse Events (AEs)0
PrimaryNumber of Participants With Potentially Clinically Important (PCI) Clinical Laboratory Assessments Reported as Adverse Events (AEs)

Number of participants with potentially clinically important (PCI) clinical laboratory assessments reported as adverse events were reported.

Time frame:
Baseline up to Week 12
Reported as:
Count of participants · Participants
Number of Participants With Potentially Clinically Important (PCI) Clinical Laboratory Assessments Reported as Adverse Events (AEs)
ParticipantsCINRYZE 1000 U
Number of Participants With Potentially Clinically Important (PCI) Clinical Laboratory Assessments Reported as Adverse Events (AEs)0
PrimaryConcentration of C1 Esterase Inhibitor (C1 INH) Antigen (Protein Volume) at Week 1

C1 INH antigen concentration in plasma was determined using an automated nephelometric assay.

Time frame:
Week 1: Pre-dose, 0.5, 1, 2, 6, 24, 48, 72 and 96 hours (h) post-dose
Reported as:
Mean · Gram per liter (g/L)
Concentration of C1 Esterase Inhibitor (C1 INH) Antigen (Protein Volume) at Week 1
Gram per liter (g/L)CINRYZE 1000U
Pre-dose0.0581 ± 0.04877
0.5 h post-dose0.1463 ± 0.04210
1 h post-dose0.1426 ± 0.05795
2 h post-dose0.1436 ± 0.04524
6 h post-dose0.1413 ± 0.04376
24 h post-dose0.1147 ± 0.03825
48 h post-dose0.0978 ± 0.04204
72 h post-dose0.0881 ± 0.04133
96 h post-dose0.0680 ± NA
PrimaryConcentration of C1 Esterase Inhibitor (C1 INH) Antigen (Protein Volume) at Week 12

C1 INH antigen concentration in plasma was determined using an automated nephelometric assay.

Time frame:
Week 12: Pre-dose, 0.5, 1, 2, 6, 24, 48, 72 and 96 h post-dose
Reported as:
Mean · gram per liter (g/L)
Concentration of C1 Esterase Inhibitor (C1 INH) Antigen (Protein Volume) at Week 12
gram per liter (g/L)CINRYZE 1000 U
Pre-dose0.0775 ± 0.04904
0.5 h post-dose0.1660 ± 0.04159
1 h post-dose0.1468 ± 0.03232
2 h post-dose0.1634 ± 0.04500
6 h post-dose0.1573 ± 0.03978
24 h post-dose0.1244 ± 0.04675
48 h post-dose0.1003 ± 0.05030
72 h post-dose0.0836 ± 0.05169
96 h post-dose0.0661 ± 0.05163
PrimaryConcentration of Plasma Complement C4 at Week 1

Concentration of plasma complement C4 was reported.

Time frame:
Week 1: Pre-dose, 0.5, 1, 2, 6, 24, 48, 72 and 96 h post-dose
Reported as:
Mean · Milligram per liter (mg/L)
Concentration of Plasma Complement C4 at Week 1
Milligram per liter (mg/L)CINRYZE 1000 U
Pre-dose42.8 ± 20.42
0.5 h post-dose37.5 ± 17.55
1 h post-dose32.7 ± 18.17
2 h post-dose43.3 ± 19.48
6 h post-dose69.0 ± 29.70
24 h post-dose89.0 ± 33.80
48 h post-dose82.5 ± 36.00
72 h post-dose80.5 ± 41.34
96 h post-dose67.0 ± NA
PrimaryConcentration of Plasma Complement C4 at Week 12

Concentration of plasma complement C4 was reported.

Time frame:
Week 12: Pre-dose, 0.5, 1, 2, 6, 24, 48, 72 and 96 h post-dose
Reported as:
Mean · mg/L
Concentration of Plasma Complement C4 at Week 12
mg/LCINRYZE 1000 U
Pre-dose77.9 ± 37.79
0.5 h post-dose65.0 ± 37.92
1 h post-dose41.4 ± 13.79
2 h post-dose67.5 ± 40.19
6 h post-dose91.1 ± 49.98
24 h post-dose104 ± 53.35
48 h post-dose99.3 ± 50.65
72 h post-dose77.9 ± 47.39
96 h post-dose63.2 ± 37.06
PrimaryConcentration of Plasma Complement C1q at Week 1

Concentration of plasma complement C1q was reported.

Time frame:
Baseline (Week 1)
Reported as:
Mean · International units per milliliter
Concentration of Plasma Complement C1q at Week 1
International units per milliliterCINRYZE 1000 U
Concentration of Plasma Complement C1q at Week 178.50 ± 36.598
PrimaryNormalized Number of Angioedema Attacks (NNA) Per Month

Angioedema attack was defined as any participant-reported (or caregiver-reported) indication of swelling or pain at any location following a report of no swelling or pain on the previous day (that is, there must have been a full symptom-free calendar day preceding the onset of symptoms for an attack to be considered a new attack). NNA was calculated as the overall number of angioedema attacks recorded during the period divided by the number of days in the period and multiplied by 30.4.Number of attacks was normalized for the number of days participants participated in a given period and expressed as the monthly frequency as compared to the historical data where, NNA was the number of angioedema attacks during 3 months prior to study drug administration. Historical data was obtained from medical or angioedema history electronic case report forms (eCRF).

Time frame:
Baseline up to Week 12
Reported as:
Mean · Angioedema attacks per month
Normalized Number of Angioedema Attacks (NNA) Per Month
Angioedema attacks per monthCINRYZE 1000 U
Historical3.375 ± 2.5225
CINRYZE Treatment1.826 ± 1.5031
PrimaryNumber of Participants With Angioedema Attacks in Different Anatomic Locations

Anatomic locations where there was a presence of pain or swelling of any level of severity; mild, moderate or severe at any day during the attack were reported. Mild: the attack symptoms were noticeable but were easily tolerated by the participant and did not interfere with the participant's daily activities. Moderate: the attack symptoms interfered with the participant's ability to attend work/school or participate in family life and social/recreational activities and severe: the attack symptoms significantly limited the participant's ability to attend work/school or participate in family life and social/recreational activities. Number of participants with angioedema attacks in different anatomic locations in treatment period was compared to NNA for historical data. Historical data was based on the typical location of angioedema attacks in the 3 months prior to study drug administration. Here, H refers to historical and T refers to treatment.

Time frame:
Baseline up to Week 12
Reported as:
Count of participants · Participants
Number of Participants With Angioedema Attacks in Different Anatomic Locations
ParticipantsCINRYZE 1000 U
Abdominal/Gastrointestinal: H7
Abdominal/Gastrointestinal: T3
Cutaneous - Facial: H3
Cutaneous - Facial: T2
Cutaneous - Extremity or Peripheral: H6
Cutaneous - Extremity or Peripheral: T6
Genital/Urinary (Includes scrotum or vulva): H2
Genital/Urinary (Includes scrotum or vulva): T4
Upper Airway (includes laryngeal or pharyngeal): H2
Upper Airway (includes laryngeal or pharyngeal):T1
PrimaryAverage Severity (Intensity) of Angioedema Attacks

All attacks in each therapy period were assigned a value of 1 (mild), 2 (moderate), or 3 (severe). Attack severity was considered the highest value assigned by the participant to any swelling location on any day during the attack. The average severity was derived by dividing the cumulative severity score by the total number of attacks. Average severity was set to 0 if there was no attack in a period. Average severity of angioedema attacks in treatment period compared to the NNA of angioedema attacks for historical data was reported. Historical data was based on the typical severity of angioedema attacks in the 3 months prior to study drug administration. Historical data was obtained from medical or angioedema history electronic case report forms (eCRF).

Time frame:
Baseline up to Week 12
Reported as:
Mean · Units on a scale
Average Severity (Intensity) of Angioedema Attacks
Units on a scaleCINRYZE 1000 U
Historical1.875 ± 0.8345
CINRYZE Treatment0.970 ± 0.6441
PrimaryAverage Duration of Angioedema Attacks

Average duration of attacks was calculated by dividing the cumulative duration of attacks by the total number of attacks during the treatment period. Historical data was based on the typical severity of angioedema attacks in the 3 months prior to study drug administration. Average duration of angioedema attacks in treatment period was compared to the NNA for historical data. Historical data was obtained from medical or angioedema history eCRF.

Time frame:
Baseline up to Week 12
Reported as:
Mean · Days
Average Duration of Angioedema Attacks
DaysCINRYZE 1000 U
Historical2.250 ± 1.0351
CINRYZE Treatment1.941 ± 2.0630
PrimaryNormalized Number of Angioedema Attacks (NNA) Per Month Treated With Rescue Medication

The normalized number of angioedema attacks was calculated as the overall number of angioedema attacks recorded during the period divided by the number of days in the period and multiplied by 30.4. NNA treated with rescue medications were reported for CINRYZE, non-CINRYZE C1-INH or not treated with C1-INH (including attacks treated with any medications other than C1-INH or untreated attacks). CINRYZE was only considered as a rescue medication when treated for breakthrough attack treatment. For historical data, only medications taken prior to the start of drug study drug administration and had an indication of "hereditary angioedema (HAE) management - acute treatment" selected on the prior and concomitant medications and therapy were considered as rescue medications. Historical data was obtained from medical or angioedema history eCRF.

Time frame:
Baseline up to Week 12
Reported as:
Mean · Angioedema attacks per month
Normalized Number of Angioedema Attacks (NNA) Per Month Treated With Rescue Medication
Angioedema attacks per monthCINRYZE 1000 U
Historical Data1.750 ± 2.2660
CINRYZE Treatment0.477 ± 0.8411
PrimaryNumber of Participants Achieving Clinical Responder Rate Relative to Historical Data

Number of participants achieving at least 50 percent (%), 70% or 90% reduction in NNA relative to NNA for historical data was reported.

Time frame:
Baseline up to Week 12
Reported as:
Count of participants · Participants
Number of Participants Achieving Clinical Responder Rate Relative to Historical Data
ParticipantsCINRYZE 1000 U
Achieving >= 50% reduction in NNA4
Achieving >= 70% reduction in NNA3
Achieving >= 90% reduction in NNA2
PrimaryChange From Baseline in Angioedema Quality of Life (AE-QoL) in Treatment Period

Angioedema quality of life (AE-QoL) questionnaire was a self-administered validated angioedema disease-specific quality of life instrument. It consisted of 17 specific questions that were associated with work, physical activity, free time, social relations, and diet. Each of the 17 items had a 5-point response scale ranging from 1 (Never) to 5 (Very Often). The questionnaire was scored according to the developers' guidelines to produce a total score and 4 domain scores (functioning, fatigue/mood, fear/shame, nutrition). Raw domain scores (mean of the item scores within each scale) and the raw total score (mean of all item scores) were rescaled using linear transformations into final percentage scores ranging 0 to 100, based on the maximum possible score, where the higher the score the greater the QoL impairment.

Time frame:
Baseline, Week 12
Reported as:
Mean · Score on a scale
Change From Baseline in Angioedema Quality of Life (AE-QoL) in Treatment Period
Score on a scaleCINRYZE 1000 U
Total Score (Baseline)28.3 ± 12.79
Total Score (Change from baseline)-9.0 ± 16.72
Functioning (Baseline)16.4 ± 11.54
Functioning (Change from baseline)-2.3 ± 22.39
Fatigue/Mood (Baseline)18.8 ± 19.59
Fatigue/Mood (Change from baseline)-9.4 ± 14.00
Fears/Shame (Baseline)49.5 ± 21.76
Fears/Shame (Change from baseline)-14.1 ± 21.12
Nutrition (Baseline)12.5 ± 16.37
Nutrition (Change from baseline)-6.3 ± 24.09
PrimaryNumber of Participants With Breakthrough Angioedema Attacks

A breakthrough attack was defined as an angioedema attack that occurs during long-term prevention therapy with CINRYZE (that is, between first study drug and last study drug dose). Number of participants with 1, 2, 3 or more angioedema attacks and who achieved initial improvement and complete resolution were also reported. Breakthrough angioedema attacks assessed by CINRYZE treatment, non-CINRYZE C1 INH treatment and untreated with C1-INH were reported. Here BAA refers to breakthrough angioedema attacks.

Time frame:
Baseline up to Week 12
Reported as:
Count of participants · Participants
Number of Participants With Breakthrough Angioedema Attacks
ParticipantsCINRYZE 1000 U
Treated (CINRYZE)2
Treated (NON-CINRYZE C1 INH)1
Untreated6
Treated (CINRYZE): One BAA1
Treated (CINRYZE): Two BAA0
Treated (CINRYZE): Three BAA1
Treated (NON-CINRYZE C1 INH): One BAA0
Treated (NON-CINRYZE C1 INH): Two BAA0
Treated (NON-CINRYZE C1 INH): Three BAA1
Untreated: One BAA1
Untreated: Two BAA0
Untreated: Three BAA5
Treated (CINRYZE): Initial improvement2
Treated (NON-CINRYZE C1 INH): Initial improvement1
Untreated: Initial improvement6
Treated (CINRYZE): Complete resolution2
Treated (NON-CINRYZE C1 INH): Complete resolution1
Untreated: Complete resolution6
PrimaryTime From Attack Onset to Initial Improvement and Complete Resolution

Time to initial improvement (TII) was calculated from the time of study drug administration to initial symptom improvement. Time to complete resolution was defined as the time from the onset of attack to complete resolution of all symptoms. Time to initial improvement and time to complete resolution as assessed by CINRYZE, non-CINRYZE and untreated were reported.

Time frame:
Baseline up to Week 12
Reported as:
Median · Hours
Time From Attack Onset to Initial Improvement and Complete Resolution
HoursCINRYZE 1000 U
Treated (CINRYZE): TII13.38 (4.250 to 22.500)
Treated (NON-CINRYZE): TII6.42 (NA to NA)
Untreated: TII10.75 (8.750 to 118.000)
Treated (CINRYZE): Complete resolution40.67 (23.834 to 57.500)
Treated (NON-CINRYZE): Complete resolution9.00 (NA to NA)
Untreated: Complete resolution61.83 (11.000 to 152.000)
PrimaryTime From Onset of Attack to Time Treated by CINRYZE

The median time from onset of attack to time treated with CINRYZE was reported.

Time frame:
Baseline up to Week 12
Reported as:
Median · Hours
Time From Onset of Attack to Time Treated by CINRYZE
HoursCINRYZE 1000 U
Time From Onset of Attack to Time Treated by CINRYZE11.97 (3.050 to 20.884)
PrimaryTime From Treatment With CINRYZE to Initial Improvement

Time to initial improvement was calculated from the time of study drug administration to initial symptom improvement. Median time from treatment with CINRYZE to initial improvement was reported.

Time frame:
Baseline up to Week 12
Reported as:
Median · Hours
Time From Treatment With CINRYZE to Initial Improvement
HoursCINRYZE 1000 U
Time From Treatment With CINRYZE to Initial Improvement1.41 (1.200 to 1.617)

Adverse events

Collected over From start of study drug administration up to Week 12. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
CINRYZE 1000 U0/8 (0%)2/8 (25%)7/8 (87.5%)
Most frequent serious events
Most frequent serious events
EventCINRYZE 1000 U
Hereditary angioedemaCongenital, familial and genetic disorders1/8
Acute myocardial infarctionCardiac disorders1/8
Most frequent other events
Showing 10 of 19
Most frequent other events
EventCINRYZE 1000 U
NasopharyngitisInfections and infestations3/8
ArthralgiaMusculoskeletal and connective tissue disorders2/8
HeadacheNervous system disorders2/8
Intervertebral disc disorderMusculoskeletal and connective tissue disorders1/8
Abdominal painGastrointestinal disorders1/8
ConstipationGastrointestinal disorders1/8
Chest painGeneral disorders1/8
Injection site painGeneral disorders1/8
Seasonal allergyImmune system disorders1/8
Herpes virus infectionInfections and infestations1/8

Baseline characteristics

Intent-to-treat safety (ITT-S) set included participants who received any amount of investigational product.

Age, Continuous
Age, Continuous(year)CINRYZE 500 UCINRYZE 1000 UTotal
Mean—38.4 ± 7.2738.4 ± 7.27
Sex: Female, Male
Sex: Female, Male(Participants)CINRYZE 500 UCINRYZE 1000 UTotal
Female—66
Male—22
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)CINRYZE 500 UCINRYZE 1000 UTotal
Hispanic or Latino—00
Not Hispanic or Latino—88
Unknown or Not Reported—00
Race (NIH/OMB)
Race (NIH/OMB)(Participants)CINRYZE 500 UCINRYZE 1000 UTotal
American Indian or Alaska Native—00
Asian—88
Native Hawaiian or Other Pacific Islander—00
Black or African American—00
White—00
More than one race—00
Unknown or Not Reported—00
08

Study locations

10 sites
  • Toyohashi Municipal Hospital
    Toyohashi, Aiti 441-8570, Japan
  • Gunma University Hospital
    Maebashi, Gunma 371-8511, Japan
  • Kobe University Hospital
    Kobe, Hyogo 650-0017, Japan
  • Heart Life Hospital
    Nakagusuku, Nakagami 901-2417, Japan
  • Naha City Hospital
    Naha, Okinawa 902-8511, Japan
  • Shiman University Hospital
    Izumo, Shimane 693-8501, Japan
  • Asahi General Hospital
    Asahi, Tiba 289-2511, Japan
  • Adachi kyosai Hospital
    Adachi, Tokyo 120-0022, Japan
  • Hiroshima University Hospital
    Hiroshima, 734-8551, Japan
  • Tomakomai City Hospital
    Tomakomai, 053-8567, Japan
09

References and documents

Study documents

  • Study protocol · Aug 30, 2016
  • Statistical analysis plan · Jul 21, 2017

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.

Supporting information: Study protocol, Sap, Icf, Csr

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 2, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02865720
Lead sponsor
Shire
Responsible party
Sponsor
First posted
Aug 12, 2016
Start date
Sep 8, 2016
Primary completion
Jun 23, 2017
Completion
Jun 23, 2017
Results posted
Dec 31, 2018
Last update
Jun 2, 2021

Study contacts

Study Director
study director · Takeda
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2021. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion