Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Epoch 2: Serum Trough Levels of Total IgG Antibodies after Administration of TAK-771 |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Epoch 2: Maximum Concentration (Cmax) of Total Serum Levels of IgG and IgG subclasses (IgG1, IgG2, IgG3, and IgG4) |
|
Day 1 predose and multiple timepoints postdose (up to 4 weeks for Participants with 4-Week Dosing Interval for Participants with 3-Week Dosing Interval) |
|
Secondary |
Epoch 2: Time to Maximum Concentration (Tmax) of Total Serum Levels of IgG and IgG subclasses (IgG1, IgG2, IgG3, and IgG4) |
|
Day 1 predose and multiple timepoints postdose (up to 4 weeks for Participants with 4-Week Dosing Interval for Participants with 3-Week Dosing Interval) |
|
Secondary |
Epoch 2: Area Under the Curve (AUC) of Total Serum Levels of IgG and IgG subclasses (IgG1, IgG2, IgG3, and IgG4) |
|
Day 1 predose and multiple timepoints postdose (up to 4 weeks for Participants with 4-Week Dosing Interval for Participants with 3-Week Dosing Interval) |
|
Secondary |
Epoch 2: Half-life of Total Serum Levels of IgG and IgG subclasses (IgG1, IgG2, IgG3, and IgG4) |
|
Day 1 predose and multiple timepoints postdose (up to 4 weeks for Participants with 4-Week Dosing Interval for Participants with 3-Week Dosing Interval) |
|
Secondary |
Epoch 2: Apparent Total Clearance (CL/F) of Total Serum Levels of IgG and IgG subclasses (IgG1, IgG2, IgG3, and IgG4) |
|
Day 1 predose and multiple timepoints postdose (up to 4 weeks for Participants with 4-Week Dosing Interval for Participants with 3-Week Dosing Interval) |
|
Secondary |
Epoch 2: Apparent Volume of Distribution (Vz/F) of Total Serum Levels of IgG and IgG subclasses (IgG1, IgG2, IgG3, and IgG4) |
|
Day 1 predose and multiple timepoints postdose (up to 4 weeks for Participants with 4-Week Dosing Interval for Participants with 3-Week Dosing Interval) |
|
Secondary |
Epoch 2: Minimum Concentration (Cmin) of Total Serum Levels of IgG and IgG subclasses (IgG1, IgG2, IgG3, and IgG4) |
|
Day 1 predose and multiple timepoints postdose (up to 4 weeks for Participants with 4-Week Dosing Interval for Participants with 3-Week Dosing Interval) |
|
Secondary |
Epoch 2: Serum Trough Levels of IgG subclasses (IgG1, IgG2, IgG3, and IgG4) after Administration of TAK-771 |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Epoch 1: Trough Levels of Specific Antibodies to Clinically Relevant Pathogens after Administration of TAK-771 |
Clinically relevant pathogens will be Clostridium tetani toxoid, Haemophilus influenzae (HIB) and Hepatitis B virus (HBV). |
Up to Week 4 for Participants with 4-Week Dosing Interval or Up to Week 3 for Participants with 3-Week Dosing Interval |
|
Secondary |
Epoch 2: Trough Levels of Specific Antibodies to Clinically Relevant Pathogens after Administration of TAK-771 |
Clinically relevant pathogens will be Clostridium tetani toxoid, Haemophilus influenzae (HIB) and Hepatitis B virus (HBV). |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with Treatment-Emergent Adverse Events (TEAEs) |
TEAEs are defined as Adverse events (AEs) with onset after date-time of first dose of Investigational product (IP), or medical conditions present prior to the start of IP but increased in severity or relationship after date-time of first dose of IP. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with TAK-771-related and TAK-771-non-related TEAEs |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with Serious and Non-serious TEAEs |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with Severe TEAEs |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with Local and Systemic TEAEs |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with TEAEs Leading to Premature Discontinuation from Study |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with Infusion-associated TEAEs |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with Clinically Significant Changes in Clinical Laboratory Parameters Recorded as TEAEs |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants with Clinically Significant Changes in Vital Signs and Body Weight Recorded as TEAEs |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Epoch 2: Percentage of Participants who Develop Anti-rHuPH20 Binding Antibody Titers of Greater Than or Equal to 1:160 |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Epoch 2: Percentage of Participants who Develop Neutralizing Antibodies to rHuPH20 |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Percentage of Participants who Experienced Tolerability Events Related to the Infusion of TAK-771 |
Tolerability events is defined as a case that the infusion rate is reduced, or that the infusion is interrupted or stopped, due to a TEAE related to TAK-771 infusion. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Epoch 1: Number of Weeks to Reach Final Dose Interval (3 Weeks or 4 Weeks) |
|
Up to Week 4 for Participants with 4-Week Dosing Interval or Up to Week 3 for Participants with 3-Week Dosing Interval |
|
Secondary |
Epoch 2: Percentage of Participants who Achieve a Treatment Interval of 3 or 4 Weeks |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Epoch 2: Percentage of Participants who Maintain a Treatment Interval of 3 or 4 Weeks |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Annual Rate of Validated Acute Serious Bacterial Infections (ASBIs) |
Annual rate of validated acute serious bacterial infections (ASBIs) per participant will be reported. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Annual Rate of All Infections per Participant |
Annual rate of all infections per participant will be reported. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Healthcare Resource Utilization: Days Not Able To Attend School/Work or To Perform Normal Daily Activities Due to Illness/Infection |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Healthcare Resource Utilization: Days on Antibiotics |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Healthcare Resource Utilization: Number of Hospitalizations Due to Illness/Infection |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Healthcare Resource Utilization: Length of Stay in Days of Hospitalizations Due to Illness/Infection |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Healthcare Resource Utilization: Number of Acute (Urgent or Unscheduled) Physician Visits Due to Illness/Infection |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Infusion Parameters in Epoch 2: Number of Infusions per Month |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Infusion Parameters in Epoch 2: Number of Infusion Sites per Infusion |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Infusion Parameters in Epoch 2: Number of Infusion Sites per Month |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Infusion Parameters in Epoch 2: Duration of Individual Infusions |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Infusion Parameters in Epoch 2: Maximum Infusion Rate per Site |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Infusion Parameters in Epoch 2: Infusion Volume per Site |
|
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Quality of Life (QOL): Pediatric Quality of Life Inventory (PEDS-QL) |
The PEDS-QL is a generic Health-Related Quality of Life (HR QoL) instrument designed specifically for a pediatric population. It captures the following domains: general health/activities, feelings/emotional, social functioning, school functioning. In this study, 2-7 years (parent as observer), 8-13 years (participant as observer) for PEDS-QL health questionnaire will be analyzed. Higher scores indicate better quality of life (QOL) for all domains of the PEDS-QL. This modular instrument uses a 5-point scale: from 0 (never) to 4 (almost always). Items are reversed scored and linearly transformed to a 0-100 scale as follows: 0=100, 1=75, 2=50, 3=25, 4=0. Four dimensions (physical, emotional, social, & school functioning) are scored. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
QOL: Short Form-36 Health Survey Version 2 (SF-36 v2) |
The SF-36 is a generic quality-of-life instrument that has been widely used to assess Health-Related Quality of Life (HR QoL) of participants. In this study, 14 years and older (participant as observer) for SF-36 health questionnaire will be analyzed. Generic instruments are used in general populations to assess a wide range of domains applicable to a variety of health states, conditions, and diseases. The SF-36 consists of 36 items that are aggregated into 8 multi-item scales (physical functioning, role - physical, bodily pain, general health, vitality, social functioning, role - emotional, and mental health), with scores ranging from 0 to 100. Higher scores indicate better HR QoL. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
QOL: EuroQoL (Quality of Life)-5 Dimensions 3 Levels (EQ-5D-3L) Health Questionnaire |
EQ-5D-3L health questionnaire is a participant answered questionnaire scoring 5 dimensions - mobility, self-care, usual activities, pain/discomfort and anxiety/depression. In this study, 2-11 years (parent as observer),12 years and older (participant as observer) for EQ-5D-3L health questionnaire will be analyzed. The EQ-5D-3L total score ranges from 0 (worst health state) to 1 (perfect health state) and 1 reflects the best outcome. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Treatment Satisfaction: Life Quality Index (LQI) |
The LQI is a self-administered questionnaire developed specifically for participants/legal guardians involved in intravenous immunoglobulin (IVIG) treatments. In this study, 2-13 years (parent as observer), 14 years and older (participant as observer) for LQI health questionnaire will be analyzed. LQI consists of 15-items, divided into four domains: treatment interferences (6 items), therapy-related problems (4 items), therapy setting (3 items), and treatment costs (2 items). Items are rated on a 7-point Likert-type scale ranging from 1: "Extremely bad" to 7: "Extremely good". Total scores range from 15 to 105, with higher scores indicating the highest possible satisfaction with factors such as independence, therapy convenience, social/school/work activities, and health and travel costs. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Treatment Satisfaction: Questionnaire for Medication-9 (TSQM-9) |
Treatment Satisfaction Questionnaire for Medication (TSQM) is a global satisfaction scale used to assess the overall level of participant's satisfaction or dissatisfaction with their medications. In this study, 2-12 years (parent as observer), 13 years and older (participant as observer) for TSQM health questionnaire will be analyzed. TSQM-9 is a 9-item, validated, self-administered instrument used to assess participant's satisfaction with medication. The three domains assessed are effectiveness, convenience, and global satisfaction. The score of each of the 3 domains is based on an algorithm to create a score of 0 to 100. Higher score indicated greater satisfaction in that domain. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|
Secondary |
Treatment Preference |
Treatment preference questionnaire is a self-administered questionnaire developed to assess participants' preference towards the administration of new subcutaneous immunoglobulin (SCIG) therapy. There are 4-items on the questionnaire, which investigate a participant's preference on the clinic/hospital/home setting of receiving the immunoglobulin therapy, the participant's rating on the frequency and method of administration, and the participant's preference to continue receiving the IGSC treatment. |
Up to Week 31 for Participants with 4-Week Dosing Interval or Up to Week 28 for Participants with 3-Week Dosing Interval |
|