A Trial to Assess the Efficacy and Safety of TEV-53408 in Adults With Celiac Disease

Who May Qualify: - Diagnosis of celiac disease at least 12 months prior to screening - On a gluten-free diet for at least 12 months prior to screening - Women must not be pregnant, lactating, breastfeeding, or planning pregnancy during the trial period - Male participants (including vasectomized) with women of child-bearing potential partners (whether pregnant or not) must use condoms and also agree not to donate sperm for the designated period NOTE - Additional criteria apply, please contact the investigator for more information. Who Should NOT Join This Trial: - A diagnosis or suspicion of refractory celiac disease - History of severe celiac-related symptoms following gluten exposure that require acute medical care or intervention of a health care professional - Any other gastrointestinal disease or condition that may interfere with the assessment of celiac disease - Current or history of malignancy or treatment of malignancy in the last 5 years, excluding treated basal cell carcinoma - Pregnant or lactating woman, or plans to become pregnant during the trial; any man who is considering fathering a child or donating sperm during the trial - A history of chronic alcohol or substance abuse disorder within the previous 2 years. - An active infection(s) requiring treatment with intravenous (iv) anti-infectives (antibiotics, antivirals, antifungals) within 30 days prior to screening or oral anti-infectives (antibiotics, antivirals, antifungals) within 14 days prior to screening - Received or intends to receive any live vaccine within 4 weeks or any non-live vaccine 2 weeks prior to investigational medicinal product administration. NOTE- Additional criteria apply, please contact the investigator for more information Always talk to your doctor about whether this trial is right for you.