E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Primary immunodeficiency diseases (PID) |
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E.1.1.1 | Medical condition in easily understood language |
Primary immunodeficiency diseases (PID) |
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E.1.1.2 | Therapeutic area | Body processes [G] - Immune system processes [G12] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the long-term safety and tolerability of IGSC, 20% in Japanese participants with PID. |
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E.2.2 | Secondary objectives of the trial |
1. To assess serum trough IgG and subclasses concentrations following weekly or biweekly administration of IGSC, 20% in Japanese participants with PID. 2. To evaluate the efficacy of IGSC, 20% in Japanese participants with PID. 3. To assess treatment preference of Japanese participants with PID. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Participant has completed or is about to complete Takeda Clinical Study TAK-664-3001. A participant is considered to have completed Study TAK-664-3001 successfully if they fulfill the following criterion: Completed Epoch 2, in which IGSC, 20% is administered weekly (completion of Epoch 3, in which IGSC, 20% is administered biweekly, is not mandatory for participation in TAK-664-3002 study). 2. Written informed consent is obtained from either the Participant or the Participant's legally authorized representative prior to any study-related procedures and study product administration. 3. Participant is willing and able to comply with the requirements of the protocol. |
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E.4 | Principal exclusion criteria |
1. Participant has developed a new serious medical condition during participation in Study TAK-664-3001 such that the Participant's safety or medical care would be impacted by participation in the extension study TAK-664-3002. 2. Participant is scheduled to participate in another non-Takeda clinical study involving an Investigational Product or investigational device in the course of this study. 3. If a female of childbearing potential, Participant is pregnant or has a negative pregnancy test but does not agree to employ adequate birth control measures for the duration of the study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Number of Participants with Treatment Emergent Adverse Events (TEAEs) |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
1. Serum Trough Levels of Immune Globulin G (IgG) Antibodies Following Weekly Administration of IGSC, 20% 2. Serum Trough Levels of IgG Subclasses Following Weekly Administration of IGSC, 20% 3. Serum Trough Levels of IgG Antibodies Following Biweekly Administration of IGSC, 20% 4. Serum Trough Levels of IgG Subclasses Following Biweekly Administration of IGSC, 20% 5. Annual Rate of Validated Acute Serious Bacterial Infections (ASBI) 6. Annual Rate of All Infections 7. Number of Days Participants not Able to Attend School or Work to Perform Normal Daily Activities due to Illness/Infection 8. Number of Days Participants on Antibiotics 9. Number of Hospitalizations due to Illness or Infection 10. Length of Hospital Stay due to Illness or Infection 11. Number of Acute Physician Visits due to Illness/Infection 12. Treatment Preference
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Secondary end points will be assessed throughout the study. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
Will this trial be conducted at a single site globally?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | Yes |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |