Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 1, 2026, 11:00 PM EDT

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Showing 1–7 of 7 matching trials from the live ClinicalTrials.gov search.
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Conditions
Primary Immune Thrombocytopenia
Interventions
efgartigimod PH20 SC
Biological
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
5
States / cities
Bentonville, Arkansas • Washington D.C., District of Columbia • Fort Wayne, Indiana + 2 more
Conditions
Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)
Interventions
Efgartigimod PH20 SC
Biological
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
229 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
25
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 21 more
Conditions
Pemphigus Vulgaris, Pemphigus Foliaceus
Interventions
efgartigimod PH20 SC, prednisone
Biological · Drug
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
183 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
17
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Redwood City, California + 13 more
Conditions
Bullous Pemphigoid
Interventions
efgartigimod PH20 SC, Prednisone
Biological · Drug
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
6
States / cities
Phoenix, Arizona • Fountain Valley, California • Miami, Florida + 3 more
Conditions
Myositis, Active Idiopathic Inflammatory Myopathy, Dermatomyositis, Polymyositis, Immune-Mediated Necrotizing Myopathy, Antisynthetase Syndrome
Interventions
Efgartigimod PH20 SC
Biological
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
18
States / cities
Phoenix, Arizona • Beverly Hills, California • Orange, California + 15 more
Conditions
Autoimmune Encephalitis (AE)
Interventions
Efgartigimod PH20 (ARGX-113) SC, Placebo PH20 SC
Biological · Other
Lead sponsor
argenx
Industry
Eligibility
12 Years and older
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
2
States / cities
Tucson, Arizona • Sherman, Texas
Conditions
Primary Immune Thrombocytopenia
Interventions
Efgartigimod PH20 SC, Placebo PH20 SC
Biological · Other
Lead sponsor
argenx
Industry
Eligibility
18 Years and older
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
14
States / cities
Springdale, Arkansas • Los Angeles, California • Washington D.C., District of Columbia + 10 more