Evaluating the Long-Term Safety and Tolerability of Efgartigimod PH20 SC Administered Subcutaneously in Patients With Generalized Myasthenia Gravis (ADAPTSC+)
Generalized Myasthenia Gravis
About this trial
This is an interventional treatment trial for Generalized Myasthenia Gravis
Eligibility Criteria
Inclusion Criteria:
- Must be capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
- Previously participated in antecedent studies ARGX-113-2001 or ARGX-113-1705 and are eligible for roll over.
Contraceptive use by men and women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies and:
Male participants:
- Male participants are not allowed to donate sperm from signing the informed consent (ICF) until the end of study.
Female participants:
- Women of Child bearing potential (WOCBP) must have a negative urine pregnancy test at baseline before investigational medicinal product (IMP) can be administered.
Exclusion Criteria:
The participant was discontinued early from studies ARGX-113-2001 or ARGX-113-1705, unless the reason for discontinuation from study ARGX-113-1705 was to roll over into study ARGX-113-2002.
a. Participants who, in the investigator's judgment, are not benefiting from efgartigimod IV in study ARGX-113-1705 Part B are not eligible for roll over into ARGX-113-2002.
- Are pregnant or lactating, or intend to become pregnant during the study or within 90 days after the last dose of investigational medicinal product (IMP)
Has any of the following medical conditions:
- Clinically significant uncontrolled chronic bacterial, viral, or fungal infection at screening
- Any other known autoimmune disease that, in the opinion of the investigator, would interfere with accurate assessment of clinical symptoms of myasthenia gravis or put the participant at undue risk
History of malignancy unless deemed cured by adequate treatment with no evidence of reoccurrence for ≥3 years before the first administration of investigational medicinal product (IMP).
Participants with the following cancers can be included at any time:
- adequately treated basal cell or squamous cell skin cancer
- carcinoma in situ of the cervix
- carcinoma in situ of the breast
- incidental histological findings of prostate cancer (TNM classification of malignant tumors stage T1a or T1b)
- Clinical evidence of other significant serious diseases, or the participant has had a recent major surgery, or who have any other condition that, in the opinion of the investigator, could confound the results of the study or put the participant at undue risk
- Received a live-attenuated vaccine within 28 days prior to study entry or plan to receive a live-attenuated vaccine during the study
- A known hypersensitivity reaction to efgartigimod, rHuPH20, or any of its excipients
Sites / Locations
- Investigator site 6 - US0010032
- Investigator Site 47 - US0010021
- Investigator Site 45 - US0010108
- Investigator site 4 - US0010110
- Investigator Site 39 - US0010006
- Investigator Site 41 - US0010015
- Investigator Site 46 - US0010111
- Investigator Site 38 - US0010003
- Investigator Site 44 - US0010077
- Investigator Site 42 - US0010019
- Investigator site 7 - US0010008
- Investigator Site 43 - US0010066
- Investigator Site 40 - US0010009
- Investigator site 5 - BE0320007
- Investigator site 24 - CZ4200005
- Investigator site 2 - GEO9950002
- Investigator Site 1 - GEO9950001
- Investigator site 3 - GEO9950003
- Investigator Site 32 - GEO9950004
- Investigator Site 33 - GEO9950016
- Investigator Site 25 - DE490006
- Investigator Site 26 - DE490009
- Investigator site 10 - HU0360013
- Investigator site 9 - HU0360012
- Investigator site 11 - IT0390003
- Investigator Site 34 - IT0390007
- Investigator Site 35 - IT0390008
- Investigator site 12 - JP0810002
- Investigator Site 36 - JP0810055
- Investigator site 8 - JP0810004
- Investigator Site 28- JP0810059
- Investigator site 14 - JP0810007
- Investigator Site 27 - JP0810008
- Investigator site 13 - JP0810005
- Investigator site 15 - JP0810009
- Investigator site 16 - NL0310001
- Investigator site 17 - PL0480001
- Investigator site 19 - PL0480007
- Investigator site 22 - PL0480065
- Investigator site 18 - PL0480005
- Investigator site 20 - PL0480018
- Investigator site 21 - PL0480022
- Investigator Site 29- RU0070002
- Investigator Site 30 - RU0070014
- Investigator Site 37 - ES0340021
- Investigator Site 31 - ES0340038
- Investigator site 23 - ES0340039
Arms of the Study
Arm 1
Experimental
efgartigimod PH20 SC
Patients receiving efgartigimod PH20 subcutaneous (SC) treatment