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Completed Phase 4 Interventional Results available

A Study to Evaluate IGSC 20% Biweekly Dosing in Treatment-Experienced Participants and Loading/Maintenance Dosing in Treatment-Naïve Participants With Primary Immunodeficiency

ClinicalTrials.gov ID: NCT04566692

Public ClinicalTrials.gov record NCT04566692. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 22, 2026, 7:17 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multi-center, Single-Sequence, Open-label Study to Evaluate IGSC 20% Biweekly Dosing in Treatment-Experienced Subjects and Loading/Maintenance Dosing in Treatment-Naïve Subjects With Primary Immunodeficiency

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of the study is to determine whether biweekly (every 2 weeks) administration of Immune Globulin Subcutaneous (Human), 20% Caprylate/Chromatography Purified (IGSC 20%) produces a steady-state area under the concentration versus time curve (AUC) of total Immunoglobulin G (IgG) that is non-inferior to that produced by weekly administration of IGSC 20% in treatment-experienced participants with primary immunodeficiency (PI).

Study identification

NCT ID
NCT04566692
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Lead sponsor
Grifols Therapeutics LLC
Industry
Enrollment
33 participants

Conditions and interventions

Interventions

Biological

Eligibility (public fields only)

Age range
6 Years to 75 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 24, 2020 (Actual)
Primary completion
Jul 18, 2022 (Actual)
Completion
Jul 25, 2022 (Actual)
Last update posted
Sep 29, 2023

2020 – 2022

United States locations

U.S. sites
12
U.S. states
10
U.S. cities
11
Facility City State ZIP Site status
Clinical Research Center of Alabama Birmingham Alabama 35209 —
Research Solutions of Arizona, PC Litchfield Park Arizona 85340 —
Allergy Associates of The Palm Beaches North Palm Beach Florida 33408 —
Allergy & Asthma Clinics of Georgia, P.C. Albany Georgia 31707 —
Institute for Asthma and Allergy Chevy Chase Maryland 20815 —
Washington University School of Medicine St Louis Missouri 63141 —
Optimed Research LTD Columbus Ohio 43235 —
Allergy, Asthma and Clinical Research Center Oklahoma City Oklahoma 73120 —
Oklahoma Institute of Allergy and Asthma Clinical Research Oklahoma City Oklahoma 73131 —
Vital Prospect Clinical Research Institute Tulsa Oklahoma 74136 —
Allergy and Clinical Immunology Associates Pittsburgh Pennsylvania 15241 —
AARA Research Center Dallas Texas 75231 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04566692, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 29, 2023 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04566692 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →