LEAP-CT for Treatment of COVID-19 Patients (Master Protocol)
NCT ID: NCT05077332
Last Updated: 2025-12-16
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE2
4 participants
INTERVENTIONAL
2021-12-29
2025-11-10
Brief Summary
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Detailed Description
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Addendum 1, Study LDOS-21-001-01, is a Phase 2, randomized, single-blind, placebo-controlled study to evaluate the safety and efficacy of the combination of famotidine and celecoxib as a treatment in moderate-to-severe patients hospitalized for COVID-19.
Addendum 2, Study LDOS-21-001-02, is a Phase 2 randomized, placebo-controlled, double-blind study to evaluate the safety and efficacy of the combination of famotidine and celecoxib as a post-exposure prophylaxis (PEP) for newly infected COVID-19 patients.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
TRIPLE
Study Groups
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Group 1 (Study Product)
Participants will receive 80 mg famotidine (PO) QID and 400 mg celecoxib as a first dose, followed by 200 mg (PO) BID celecoxib, for 5 days. Following this 5-day period, participants will continue their famotidine treatment for an additional 9 days.
Famotidine
80 mg tablet, QID for 14 days
Celecoxib
400 mg (initial dose) then 200 mg capsule, BID for 5 days
Group 2 (Reference Therapy)
Participants will receive matching placebos QID and BID, for 5 days. Following this 5-day period, subjects will continue to receive matching famotidine placebo, QID, for an additional 9 days.
Placebo
tablet, QID for 14 days; capsule, BID for 5 days
Interventions
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Famotidine
80 mg tablet, QID for 14 days
Celecoxib
400 mg (initial dose) then 200 mg capsule, BID for 5 days
Placebo
tablet, QID for 14 days; capsule, BID for 5 days
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Addendum #1 (LDOS-21-001-01) or
* Addendum #2 (LDOS-21-001-02)
18 Years
ALL
No
Sponsors
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United States Department of Defense
FED
Leidos Life Sciences
INDUSTRY
Responsible Party
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Principal Investigators
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Brian A Roberts, MS, PMP
Role: STUDY_DIRECTOR
Leidos, Inc.
Locations
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US02-04: Integrated Health Solutions
Miami, Florida, United States
Countries
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References
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Hogan Ii RB, Hogan Iii RB, Cannon T, Rappai M, Studdard J, Paul D, Dooley TP. Dual-histamine receptor blockade with cetirizine - famotidine reduces pulmonary symptoms in COVID-19 patients. Pulm Pharmacol Ther. 2020 Aug;63:101942. doi: 10.1016/j.pupt.2020.101942. Epub 2020 Aug 29.
Malone RW, Tisdall P, Fremont-Smith P, Liu Y, Huang XP, White KM, Miorin L, Moreno E, Alon A, Delaforge E, Hennecker CD, Wang G, Pottel J, Blair RV, Roy CJ, Smith N, Hall JM, Tomera KM, Shapiro G, Mittermaier A, Kruse AC, Garcia-Sastre A, Roth BL, Glasspool-Malone J, Ricke DO. COVID-19: Famotidine, Histamine, Mast Cells, and Mechanisms. Front Pharmacol. 2021 Mar 23;12:633680. doi: 10.3389/fphar.2021.633680. eCollection 2021.
Janowitz T, Gablenz E, Pattinson D, Wang TC, Conigliaro J, Tracey K, Tuveson D. Famotidine use and quantitative symptom tracking for COVID-19 in non-hospitalised patients: a case series. Gut. 2020 Sep;69(9):1592-1597. doi: 10.1136/gutjnl-2020-321852. Epub 2020 Jun 4.
Tomera K, Malone R, Kittah J. Hospitalized COVID-19 Patients Treated with Celecoxib and High Dose Famotidine Adjuvant Therapy Sow Significant Clinical Responses. Frontiers in Pharmacology. 2021.
Sun C, Chen Y, Hu L, Wu Y, Liang M, Ayaz Ahmed M, Bhan C, Guo Z, Yang H, Zuo Y, Yan Y, Zhou Q. Does Famotidine Reduce the Risk of Progression to Severe Disease, Death, and Intubation for COVID-19 Patients? A Systemic Review and Meta-Analysis. Dig Dis Sci. 2021 Nov;66(11):3929-3937. doi: 10.1007/s10620-021-06872-z. Epub 2021 Feb 24.
Shoaibi A, Fortin SP, Weinstein R, Berlin JA, Ryan P. Comparative Effectiveness of Famotidine in Hospitalized COVID-19 Patients. Am J Gastroenterol. 2021 Apr;116(4):692-699. doi: 10.14309/ajg.0000000000001153.
Sander WJ, O'Neill HG, Pohl CH. Prostaglandin E2 As a Modulator of Viral Infections. Front Physiol. 2017 Feb 14;8:89. doi: 10.3389/fphys.2017.00089. eCollection 2017.
Morimoto K, Shirata N, Taketomi Y, Tsuchiya S, Segi-Nishida E, Inazumi T, Kabashima K, Tanaka S, Murakami M, Narumiya S, Sugimoto Y. Prostaglandin E2-EP3 signaling induces inflammatory swelling by mast cell activation. J Immunol. 2014 Feb 1;192(3):1130-7. doi: 10.4049/jimmunol.1300290. Epub 2013 Dec 16.
Hong W, Chen Y, You K, Tan S, Wu F, Tao J, Chen X, Zhang J, Xiong Y, Yuan F, Yang Z, Chen T, Chen X, Peng P, Tai Q, Wang J, Zhang F, Li YX. Celebrex Adjuvant Therapy on Coronavirus Disease 2019: An Experimental Study. Front Pharmacol. 2020 Nov 6;11:561674. doi: 10.3389/fphar.2020.561674. eCollection 2020.
Chen JS, Alfajaro MM, Chow RD, Wei J, Filler RB, Eisenbarth SC, Wilen CB. Non-steroidal anti-inflammatory drugs dampen the cytokine and antibody response to SARS-CoV-2 infection. J Virol. 2021 Mar 10;95(7):e00014-21. doi: 10.1128/JVI.00014-21. Epub 2021 Jan 13.
Other Identifiers
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LDOS-21-001
Identifier Type: -
Identifier Source: org_study_id