Accepts Healthy Volunteers
Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms
An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.
An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.
Searching Both is inclusive of interventional and observational studies.
|Eligible Ages||12 Years - 80 Years|
Inclusion Criteria:1. Male or female aged ≥12 and ≤80 years at the time of signing ICF. 2. Confirmed diagnosis of EoE and esophageal intraepithelial eosinophilic infiltration of ≥15 eosinophils/hpf in 1 hpf from a biopsy collected during the Screening EGD without any other cause for the esophageal eosinophilia. 3. History (by patient report) of an average of ≥2 episodes of dysphagia with intake of solid foods per week during the 4 weeks prior to Screening. 4. Subjects must have failed or not be adequately controlled on standard of care treatments for EoE symptoms, which could include PPI, systemic or topical corticosteroids, and/or diet, among others. 5. If on an allowed treatment for EoE, stable dose for at least 4 weeks prior to Screening and willingness to continue that dose for the study duration. 6. If patient is on pre-existing dietary restrictions, willingness to maintain dietary restrictions throughout the study, as much as possible. 7. Able and willing to comply with all study procedures. 8. Female subjects must be either post-menopausal for at least 1 year with FSH level >30 mIU/mL at Screening or surgically sterile (tubal ligation,hysterectomy, or bilateral oophorectomy) for at least 3 months, or if of childbearing potential, have a negative pregnancy test and agree to use dual methods of contraception, or abstain from sexual activity from screening until the end of the study, or for 120 days following the last dose of study drug, whichever is longer. Male subjects with female partners of childbearing potential must agree to use a highly effective method of contraception from Screening until the end of the study or for 120 days following the last dose of study drug,whichever is longer. All fertile men with female partners of childbearing potential should be instructed to contact the Investigator immediately if they suspect their partner might be pregnant at any time during study participation. Key
Exclusion Criteria:1. Concomitant EG, EoD, or eosinophilic colitis (EC). 2. EG and/or EoD (≥30 eosinophils/hpf in 5 hpf in the stomach and/or ≥30 eosinophils/hpf in 3 hpf in the duodenum) as determined by central histology assessment of biopsies collected during the Screening EGD. 3. Causes of esophageal eosinophilia other than EoE or one the following: hypereosinophilic syndrome, eosinophilic granulomatosis with polyangiitis, or peripheral blood absolute eosinophil count of >1500 eosinophils/μL. 4. History of inflammatory bowel disease, celiac disease, achalasia, and/or esophageal surgery. 5. Any esophageal stricture unable to be passed with a standard diagnostic 9 mm to 10 mm upper endoscope or any critical esophageal stricture that requires dilation during screening. 6. History of bleeding disorders or esophageal varices. 7. History of malignancy; except carcinoma in situ, early stage prostate cancer, or non-melanoma skin cancers. However, cancers that have been in remission for more than 5 years and are considered cured, can be enrolled (with the exception of breast cancer). All history of malignancy (including diagnosis, dates, and compliance with cancer screening recommendations) must be documented and certified by the Investigator, along with the statement that in their clinical judgment the tissue eosinophilia is attributable to EGID, rather than recurrence of malignancy. 8. Active Helicobacter pylori infection (as determined by central histology staining of the biopsy collected during the Screening EGD), unless treated and confirmed to be negative prior to randomization and symptoms remain consistent. 9. Positive Ova and Parasite (O&P) test at Screening, seropositive for Strongyloides stercoralis at Screening, and/or treatment for a clinically significant helminthic parasitic infection within 6 months of Screening. 10. Seropositive for HIV or hepatitis at Screening, except for vaccinated patients or patients with a history of hepatitis that has since resolved. 11. Prior exposure to AK002 or hypersensitivity to any constituent of AK002. 12. Change in dose of inhaled corticosteroids, nasal corticosteroids, PPI, and/or diet therapy within 4 weeks prior to Screening. 13. Use of oral corticosteroids (swallowed topical or systemic corticosteroids) within 8 weeks prior to Screening. 14. Use of any biologics or medications that may interfere with the study, such as immunosuppressive or immunomodulatory drugs including azathioprine, JAK inhibitors, 6-mercaptopurine, methotrexate, cyclosporine, tacrolimus, anti-TNF, anti-IL-4 receptor, e.g., dupilumab), anti-IL-5 (e.g., mepolizumab), anti-IL-5 receptor (e.g., benralizumab), anti-IL-13 (e.g., lebrikizumab), anti-IgE (e.g., omalizumab), within 12 weeks prior to Screening. 15. Participation in a concurrent interventional study with the last intervention occurring within 30 days prior to administration of study drug or 90 days or 5 half-lives, whichever is longer, for biologic products. 16. Vaccination with live attenuated vaccines ≤30 days prior to initiation of treatment in the study, during the treatment period, or vaccination expected ≤5 half-lives (≤4 months) following study drug administration. 17. Treatment with chemotherapy or radiotherapy in the preceding 6 months. 18. Presence of abnormal laboratory values considered by the Investigator to be clinically significant. 19. Any disease, condition (medical or surgical), or cardiac abnormality, which in the opinion of the Investigator, would place the subject at increased risk. 20. Known history of alcohol, drug, or other substance abuse or dependence. 21. Women who are pregnant, breastfeeding, or planning to become pregnant while participating in the study. 22. Any other reason that in the opinion of the Investigator or Medical Monitor makes the patient unsuitable for enrollment.
This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.
Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.
Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.
Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.
Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.
|Phase 2/Phase 3|
The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.
The person who is responsible for the scientific and technical direction of the entire clinical study.
|Henrik Rasmussen, MD, PhD|
|Principal Investigator Affiliation||Allakos, Inc.|
Category of organization(s) involved as sponsor (and collaborator) supporting the trial.
|Countries||Australia, Netherlands, United States|
The disease, disorder, syndrome, illness, or injury that is being studied.
Placebo Comparator: Placebo
Subjects in this arm will receive 6 monthly doses of placebo.
Experimental: 1 mg/kg of antolimab (AK002)
Subjects in this arm will receive 6 monthly doses of antolimab (AK002) (1mg/kg).
Experimental: 3 mg/kg of antolimab (AK002)
Subjects in this arm will receive 6 monthly doses of antolimab (AK002): A first dose of 1 mg/kg, followed by 5 monthly doses of 3 mg/kg.
Other: - Placebo
Drug: - antolimab (AK002)
Antolimab (AK002) is a humanized non-fucosylated immunoglobulin G1 (IgG1) monoclonal antibody directed against Siglec-8.
Contact a Trial Team
If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.