A Study to Assess the Long-term Safety and Efficacy of a Subcutaneous Formulation of Efgartigimod… (NCT04598477) | Clinical Trial Compass
TerminatedPhase 3
A Study to Assess the Long-term Safety and Efficacy of a Subcutaneous Formulation of Efgartigimod PH20 SC in Adults With Pemphigus (Vulgaris or Foliaceus)
Stopped: Based on the lack of observed efficacy in the primary study ARGX-113-1904, the sponsor decided to discontinue the open-label extension study.
United States, Australia, Bulgaria183 participantsStarted 2021-07-15
Plain-language summary
This was a prospective, multicenter, open label extension (OLE) trial on the efficacy, safety, patient outcome measures, tolerability, immunogenicity, PK and PD of efgartigimod PH20 SC in adult PV or PF participants, who participated in antecedent trial ARGX-113-1904. This trial provided extension of efgartigimod PH20 SC treatment and retreatment options for participants who had been randomized to efgartigimod PH20 SC treatment arm in the trial ARGX-113-1904, and first treatment of efgartigimod PH20 SC and retreatment options for participants who had been randomized to the placebo arm in trial ARGX-113-1904. The participants could also receive concomitant prednisone therapy. Investigators could increase or decrease the prednisone dose based on protocol-specified criteria.
Trial ARGX-113-1905 evaluated the ability to (further) taper prednisone therapy and achieve Clinical Remission (CR) off therapy (CRoff), the ability to achieve CR and CR on minimal therapy (CRmin) for participants who had not yet achieved CR or CRmin, and the ability to treat flare; it also assessed patient outcome measures and the safety, PD, PK and immunogenicity of efgartigimod PH20 SC over the duration of trial.
Study duration: Up to 60 weeks for participants who receive IMP administration up to 52 weeks and with a follow-up period of 8 weeks after the last IMP administration
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Ability to understand the requirements of the trial, to provide written informed consent (including consent for the use and disclosure of research-related health information), willingness and ability to comply with the trial protocol procedures (including required trial visits).
. The participant participated in trial ARGX-113-1904 and completed the study or has the defined criteria for rollover.
. Contraceptive use by men and women should be consistent with local regulations regarding the methods for contraception for those participating in clinical trials and:
. Male participants:
. Female participants
Exclusion criteria
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Incidence of Treatment-Emergent Adverse Events (TEAE), Adverse Events of Special Interest (AESI), and Serious Adverse Events (SAE)
. Pregnant and lactating women and those intending to become pregnant during the trial.
. Participants with clinical evidence of other significant serious disease or participants who recently underwent or have planned a major surgery during the period of the trial, or any other condition in the opinion of the investigator, that could confound the results of the trial or put the participant at undue risk.
. Known hypersensitivity to any of the components of the administered treatments.