Efficacy: Change From Baseline in Total Serum Trough Levels of Immunoglobulin G (IgG) at Month 12
Change from baseline in total serum trough levels of IgG in Epoch 1 and 2 was reported. Baseline was defined as the last non-missing value before the initial dose of HYQVIA.
Efficacy: Change From Baseline in Serum Trough Levels of IgG Subclasses at Month 12
Change from baseline in Serum trough levels of IgG subclasses 1, 2, 3, and 4 in Epoch 1 and 2 was reported. Baseline was defined as the last non-missing value before the initial dose of HYQVIA.
Efficacy: Change From Baseline in Trough Levels of Specific Antibodies to Clostridium Tetani Toxoid IgG at Month 12
Change from baseline in trough levels of specific antibodies in clostridium tetani toxoid IgG at Month 12 was reported. Baseline was defined as the last non-missing value before the initial dose of HYQVIA. Here, IU/ml was defined as "International units per milliliter".
Efficacy: Change From Baseline in Trough Levels of Specific Antibodies to Hepatitis B Virus (HBV) at Month 12
Change from baseline in trough levels of specific antibodies in HBV at Month 12 was reported. Baseline was defined as the last non-missing value before the initial dose of HYQVIA.
Efficacy: Change From Baseline in Trough Levels of Specific Antibodies to Haemophilus Influenzae B IgG at Month 12
Change from baseline in trough levels of specific antibodies in Haemophilus influenzae B IgG at Month 12 was reported. Baseline was defined as the last non-missing value before the initial dose of HYQVIA.
Safety: Percentage of Participants Who Achieved a Treatment Interval of Three or Four Weeks in Epoch 2
Percentage of participants who achieved a treatment interval of three or four weeks in Epoch 2 was reported.
Safety: Percentage of Participants Who Maintained a Treatment Interval of Three or Four Weeks in Epoch 2 up to 12 Months
Percentage of participants who maintained a treatment interval of three or four weeks in Epoch 2 up to 12 months was reported.
Safety: Number of Participants With Local TEAEs (Excluding Infections)
TEAEs were the AEs with onset after date-time of first dose of IP, or any medical condition present prior to the start of IP but increased in severity or relationship after date-time of first dose of IP. Number of Participants with local TEAEs (excluding infections) was reported.
Safety: Rate of Local TEAEs Per Infusion (Excluding Infections)
Rate of local TEAEs per infusion was calculated as number of local adverse events/total number of infusions administered to participants in the analysis set. Only events are included which start prior to participants start date of non-response. Rate of local TEAEs per infusion (excluding infections) was reported.
Safety: Number of Participants With Local Adverse Reaction (Excluding Infections)
Adverse reaction was defined as any TEAE that meets any of the following criteria: 1) A TEAE considered by either the investigator and/or the sponsor to be possibly or probably related to IP administration, or; 2) A TEAE that begins during infusion of IP or within 72 hours following the end of IP infusion, or; 3) A TEAE for which causality assessment is missing or indeterminate. Number of participants with local adverse reactions (excluding infections) was reported.
Safety: Rate of Local Adverse Reaction Per Infusion (Excluding Infections)
Rate of local adverse reaction per infusion was calculated as number of local adverse reaction events/total number of infusions administered to participants in the analysis set. Rate of local adverse reactions per infusion (excluding infections) was reported.
Safety: Number of Participants With Systemic TEAEs (Excluding Infections)
TEAEs were the AEs with onset after date-time of first dose of IP, or any medical condition present prior to the start of IP but increased in severity or relationship after date-time of first dose of IP. Number of participants with systemic TEAEs (excluding infections) was reported..
Safety: Rate of Systemic TEAEs Per Infusion (Excluding Infections)
Rate of systemic TEAEs per infusion was calculated as number of systemic adverse events/total number of infusions administered to participants in the analysis set. Rate of systemic TEAEs per infusion was assessed based on events per infusion.
Safety: Number of Participants With Systemic Adverse Reaction (Excluding Infections)
Adverse reaction was defined as any TEAE that meets any of the following criteria: 1) A TEAE considered by either the investigator and/or the sponsor to be possibly or probably related to IP administration, or; 2) A TEAE that begins during infusion of IP or within 72 hours following the end of IP infusion, or; 3) A TEAE for which causality assessment is missing or indeterminate. Number of participants with systemic adverse reaction (excluding infections) was reported.
Safety: Rate of Systemic Adverse Reaction Per Infusion (Excluding Infections)
Rate of Systemic adverse reactions per infusion was calculated as number of systemic adverse reaction events/total number of infusions administered to participants in the analysis set. Rate of systemic adverse reactions per infusion (excluding infections) was reported.
Safety: Number of Participants With Any TEAEs (Excluding Infections)
TEAEs were the AEs with onset after date-time of first dose of IP, or any medical condition present prior to the start of IP but increased in severity or relationship after date-time of first dose of IP. Number of participants with any TEAEs (excluding infections) was reported.
Safety: Rate of TEAEs Per Infusion (Excluding Infections)
Rate of TEAEs per infusion was calculated as number of adverse events/total number of infusions administered to participants in the analysis set. Rate of TEAEs per infusion (excluding infections) was reported.
Safety: Number of Participants With Any Adverse Reactions (Excluding Infections)
Adverse reaction was defined as any TEAE that meets any of the following criteria: 1) A TEAE considered by either the investigator and/or the sponsor to be possibly or probably related to IP administration, or; 2) A TEAE that begins during infusion of IP or within 72 hours following the end of IP infusion, or; 3) A TEAE for which causality assessment is missing or indeterminate. Number of participants with any adverse reactions (excluding infections) was reported.
Safety: Rate of Any Adverse Reaction Per Infusion (Excluding Infections)
Rate of all adverse reactions per infusion was calculated as number of adverse reaction events/total number of infusions administered to participants in the analysis set. Rate of any adverse reactions per infusion (excluding infections) was reported.
Safety: Number of Participants With Any Temporally Associated TEAEs (Excluding Infections)
Temporally-associated TEAEs were defined as TEAEs which begin during infusion of IP or within 72 hours following the end of IP infusion. Number of participants with any temporally associated TEAEs (excluding infections) was reported.
Safety: Rate of Any Temporally Associated TEAEs Per Infusion (Excluding Infections)
Rate of any temporally associated TEAEs per infusion was calculated as number of temporally associated adverse events/total number of infusions administered to participants in the analysis set. Temporally-associated TEAEs were defined as TEAEs which begin during infusion of IP or within 72 hours following the end of IP infusion. Rate of any temporally associated TEAEs per infusion (excluding infections) was reported.
Safety: Number of Participants With Any Related (Causally) and/or Temporally Associated TEAEs (Excluding Infections)
Number of participants with any related (causally) and/or temporally associated TEAEs (excluding infections) was reported. Temporally-associated TEAEs were defined as TEAEs which begin during infusion of IP or within 72 hours following the end of IP infusion.
Safety: Rate of Any Related (Causally) and/or Temporally Associated TEAEs Per Infusion (Excluding Infections)
Rate of any related (causally) and/or temporally associated TEAEs per infusion was calculated as number of related and/or temporally associated adverse events/ total number of infusions administered to participants in the analysis set. TEAEs recorded in the study database as "possibly related" or "probably related" to HYQVIA are considered HYQVIA-related adverse events. Temporally-associated TEAEs were defined as TEAEs which begin during infusion of IP or within 72 hours following the end of IP infusion. Rate of any related (causally) and/or temporally associated TEAEs per infusion (excluding infections) was reported.
Safety: Number of Participants With Any Serious TEAEs (Excluding Infections)
Serious TEAE were the AEs that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged in-patient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Number of participants with any serious TEAEs (excluding infections) was reported.
Safety: Rate of Serious TEAEs Per Infusion (Excluding Infections)
Rate of serious TEAEs per infusion was calculated as number of serious adverse events/total number of infusions administered to participants in the analysis set. Rate of serious TEAEs per infusion (excluding infections) was reported.
Safety: Number of Participants Who Developed Positive Titer (>=160) of Binding or Neutralizing Antibodies to rHuPH20
Number of participants who developed positive titer (>=160) of binding or neutralizing antibodies to rHuPH20 was reported.
Other Analysis: Number of Infusions Per Month
Number of infusions per month was calculated as total number of infusions per duration of treatment (days) * 30.4 days per month.
Other Analysis: Number of Infusion Sites (Needle-Sticks) Per Infusion
Number of infusion sites (needle-sticks) per infusion was calculated as total number of infusion sites / total number of infusions. Only infusions with complete data available were included.
Other Analysis: Number of Infusion Sites (Needle-Sticks) Per Month
Number of infusion sites per month was calculated as total number of infusion sites / duration of treatment (days) * 30.4 days. Only infusions with complete data available were included.
Other Analysis: Duration of Infusion
The duration of infusion was defined as the difference between the end time and the start time of the HyQvia infusion.
Other Analysis: Maximum Infusion Rate Per Site
Maximum infusion rate per site was reported.
Other Analysis: Infusion Volume Per Site
Infusion volume per site was calculated as actual IgG volume (milliliter [mL]) / total number of infusion sites (hour) used.
Other Analysis: Number of Infusions That Were Interrupted or Stopped Due to an AE
Number of infusions that were interrupted or Stopped due to an AE was reported.
Other Analysis: Number of Weeks to Reach Final 3 or 4-week Dose Interval in Epoch 1
Final dose interval, defined as three or four weeks infusion interval in Epoch 1 of treatment period, was reported.
Health Related Quality of Life (HR QoL): Change From Baseline in Pediatric Quality of Life Questionnaire (PedsQL)
PedsQL Generic Core Scale (GCS) was used for QOL assessment. It encompasses 4 dimensions (physical functioning [PF], emotional functioning [EF], social functioning [SF], school functioning [ScF]). Age groups are: Toddler (2-4 years), Young child (5-7 years), Child (8-12 years), and Teens (13-<18 years). Depending on the participants age, the questionnaire may be completed by either the participant or the parent/caregiver as appropriate. For the Toddler group, the PedsQL GCS consisted of 21 items, using a 5-point Likert scale (0 to 4); for all other groups, the PedsQL consisted of 23 items, with a 3-point Likert scale (0, 2, 4) for the young child, and a 5-point Likert scale for the child and teens groups. All Scores were transformed on a scale from 0 to 100 where 0=100, 1=75, 2=50, 3=25, and 4=0. Higher scores indicate better quality of life. A negative change from baseline indicates worse quality of life. Baseline: last non-missing value before the initial dose of HYQVIA.
HRQoL: Change From Baseline in EuroQoL (Quality of Life)-5 Dimensions (EQ-5D)
EQ-5D considered five attributes of quality of life evaluation, that is, mobility, self-care, usual activity, pain/discomfort, and anxiety/depression. Each dimension had five possible levels: 1 (no problems); 2 (slight problems); 3 (moderate problems); 4 (severe problems), and; 5 (extreme problems). The participants rating of their current HRQoL state was recorded using a standard vertical 20-cm visual analog scale (EQ-VAS), which ranged from 0 to 100, where 0 indicated worst imaginable health state and 100 was best imaginable health state. Baseline was defined as the last non-missing value before the initial dose of HYQVIA. A negative change from baseline indicates worse health state.
HR QoL: Change From Baseline in Treatment Satisfaction Questionnaire for Medication-9 (TSQM-9)
TSQM-9 is a 9-item, validated, self-administered instrument to assess participants satisfaction with medication. It consists of 3 subscales: effectiveness, convenience and global satisfaction. The scores were computed by adding items for each domain, i.e. 1 to 3 for effectiveness, 4 - 6 for convenience and 7 to 9 for global satisfaction. The lowest possible score (1 for each item and 3 for all 3 subscales) was subtracted from the composite score and divided by the greatest possible score range. The greatest range was (7-1)*3 items = 18 for the effectiveness and convenience, and (5-1)*3 items = 12 for global satisfaction . The item scores of each of the 3 domains are summed and transformed to create a score of 0 (extremely dissatisfied) to 100 (extremely satisfied). Higher score indicated greater satisfaction in that domain. A negative change from baseline indicates less satisfaction in that domain. Baseline was defined as the last non-missing value before the initial dose of HYQVIA.