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Showing 1–24 of 36 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Pharmacokinetics of Methotrexate Clear all
Completed Phase 1 Interventional

A Study to Investigate How JNJ-38518168 May Affect the Plasma Levels of Methotrexate in Rheumatoid Arthritis Participants

NCT01450982
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
JNJ-38518168 / MTX
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
4
States / cities
Anniston, Alabama • Daytona Beach, Florida • Duncansville, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated May 5, 2013 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Effects of BMS-986371 on the Drug Levels of Methotrexate in the Presence and Absence of Sulfasalazine

NCT05445440
View directory record Official record
Conditions
Healthy Participants
Interventions
Methotrexate, Leucovorin, BMS-986371, Sulfasalazine
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 50 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

Phase 1b Study of PLX5622 in Rheumatoid Arthritis Patients Who Are Receiving Methotrexate

NCT01329991
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
PLX5622, Placebo
Drug
Lead sponsor
Plexxikon
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
4
States / cities
Anniston, Alabama • Lansing, Michigan • Duncansville, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 11, 2012 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

A Dose Escalation Study to Assess Safety, Tolerability and Pharmacokinetics of ASP2409 Following a Single Intravenous Dose in Patients With Rheumatoid Arthritis on Methotrexate

NCT02171143
View directory record Official record
Conditions
Rheumatoid Arthritis, Pharmacokinetics of ASP2409
Interventions
ASP2409, Placebo
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
10
States / cities
Anniston, Alabama • Costa Mesa, California • Clearwater, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2014 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Pharmacokinetics, Efficacy and Safety of Intravenous Golimumab in Pediatric Participants With Active Polyarticular Course Juvenile Idiopathic Arthritis Despite Methotrexate Therapy

NCT02277444
View directory record Official record
Conditions
Arthritis, Juvenile
Interventions
Golimumab, Methotrexate
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
2 Years to 17 Years
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2024
U.S. locations
14
States / cities
San Diego, California • Chicago, Illinois • Boston, Massachusetts + 11 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

A Study to Assess the Safety, Tolerability, and Pharmacokinetics of ASP5094 Following Multiple Intravenous Doses in Subjects With Rheumatoid Arthritis on Methotrexate

NCT02698657
View directory record Official record
Conditions
Rheumatoid Arthritis (RA)
Interventions
ASP5094, Placebo
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
7
States / cities
Anniston, Alabama • DeBary, Florida • Jacksonville, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 30, 2024 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

A Drug Interaction Study to Evaluate the Pharmacokinetics of ASP015K and Methotrexate in Patients With Rheumatoid Arthritis

NCT01754805
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
peficitinib, methotrexate
Drug
Lead sponsor
Astellas Pharma Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Anniston, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 20, 2024 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

A Trial of Carboxypeptidase-G2 (CPDG2) and Thymidine for the Management of Patients With Methotrexate Toxicity and Renal Dysfunction

NCT00001298
View directory record Official record
Conditions
Kidney Diseases
Interventions
carboxypeptidase-G2
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1992 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study Investigating Interactions Between BMS-986322 and Rosuvastatin, Metformin and Methotrexate in Healthy Participants

NCT05615012
View directory record Official record
Conditions
Healthy Participants
Interventions
BMS-986322, Rosuvastatin, Metformin, Glucose, Methotrexate, Leucovorin
Drug · Dietary Supplement
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 60 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Study of AMG 531 to Evaluate the Safety & Efficacy in Patients With Non-Hodgkin's Lymphoma

NCT00299182
View directory record Official record
Conditions
Lymphoma
Interventions
AMG 531, Rituximab, Cyclophosphamide, Vincristine, Doxorubicin, Dexamethasone, Methotrexate, Cytarabine, Placebo
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 20, 2021 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

A Study to Investigate How JNJ-39758979 May Affect the Plasma Levels of Methotrexate in Rheumatoid Arthritis Participants

NCT01442545
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
JNJ-39758979 / MTX
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
3
States / cities
Daytona Beach, Florida • Duncansville, Pennsylvania • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 12, 2013 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

A Drug Interaction Study Between Tocilizumab, Methotrexate and Simvastatin on Patients With Rheumatoid Arthritis.

NCT00365001
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
tocilizumab [RoActemra/Actemra], Methotrexate, Simvastatin
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 75 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2008
U.S. locations
10
States / cities
Anniston, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2010 · Synced Jul 23, 2026, 7:19 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

MAD Study of IA-14069

NCT05533372
View directory record Official record
Conditions
Healthy, Rheumatoid Arthritis
Interventions
IA-14069, Placebo, Methotrexate
Drug
Lead sponsor
ILAb Co., Ltd.
Industry
Eligibility
18 Years to 70 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated May 19, 2025 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional Results available

Study of LX3305 and Methotrexate in Subjects With Stable Rheumatoid Arthritis

NCT00847886
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
LX3305, LX3305 Placebo, Methotrexate
Drug
Lead sponsor
Lexicon Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 2, 2010 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

A Safety Study of Rituximab Plus MTX Injected Into the Cerebrospinal Fluid in the Treatment of Brain Lymphoma

NCT00221325
View directory record Official record
Conditions
Central Nervous System Lymphoma, Intraocular Lymphoma
Interventions
Intraventricular Rituximab Plus MTX
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
4
States / cities
San Francisco, California • Boston, Massachusetts • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 15, 2015 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional Results available

Open-label Leucovorin Pharmacokinetic Study in Patients Receiving High Dose Methotrexate With or Without Voraxaze

NCT00634504
View directory record Official record
Conditions
Osteosarcoma, Leukemia, Lymphoma
Interventions
glucarpidase, high-dose methotrexate, leucovorin, high-dose methotrexate, leucovorin
Drug
Lead sponsor
BTG International Inc.
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
25
States / cities
Phoenix, Arizona • Los Angeles, California • Oakland, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2022 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 4 Interventional Results available

A Phase 4, Open-label Study of KRYSTEXXA® (Pegloticase) Co-administered With Methotrexate (MTX) in Patients With Uncontrolled Gout (FORWARD OL)

NCT04762498
View directory record Official record
Conditions
Uncontrolled Gout, Chronic Gout
Interventions
Pegloticase, Methotrexate (MTX)
Biological · Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 80 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
12
States / cities
Anchorage, Alaska • Glendale, Arizona • San Leandro, California + 9 more
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 3 Interventional Results available

A Study to Compare FKB327 Long-term Safety, Efficacy and Immunogenicity With Humira® in Rheumatoid Arthritis Patients

NCT02405780
View directory record Official record
Conditions
Arthritis, Rheumatoid
Interventions
FKB327, Humira®
Drug
Lead sponsor
Fujifilm Kyowa Kirin Biologics Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
645 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
15
States / cities
Peoria, Arizona • Palm Desert, California • Boca Raton, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 25, 2019 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety Study of BMS-986142 in Patients With Moderate to Severe Rheumatoid Arthritis

NCT02638948
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
BMS-986142, Placebo, Methotrexate
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 120 Years
Enrollment
508 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
26
States / cities
Huntsville, Alabama • Fullerton, California • Hemet, California + 20 more
Source: ClinicalTrials.gov public record
Updated May 27, 2019 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 2 Interventional Results available

A Pharmacokinetic/Pharmacodynamic Study Comparing PF-05280586 To Rituximab In Subjects With Active Rheumatoid Arthritis With An Inadequate Response To TNF Inhibitors (REFLECTIONS B328-01)

NCT01526057
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
PF-05280586, MabThera, Rituxan
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
43
States / cities
Birmingham, Alabama • Huntsville, Alabama • Gilbert, Arizona + 32 more
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1 Interventional

Study Of The Safety Of CE 224,545 And Methotrexate In Patients With Rheumatoid Arthritis

NCT00446784
View directory record Official record
Conditions
Arthritis, Rheumatoid
Interventions
CE-224,535, Methotrexate
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
5
States / cities
Miami, Florida • Ocala, Florida • Kalamazoo, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated May 22, 2011 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 1Phase 2 Interventional

Safety, Tolerance, Pharmacokinetics and Activity of HE3286 in Patients With Rheumatoid Arthritis

NCT00712114
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
HE3286
Drug
Lead sponsor
Harbor Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Beverly Hills, California
Source: ClinicalTrials.gov public record
Updated Jun 13, 2011 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 4 Interventional Results available

Mechanism of Action Study for Psoriasis

NCT00932113
View directory record Official record
Conditions
Psoriasis
Interventions
Methotrexate, Adalimumab (Humira)
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 30, 2017 · Synced Jul 23, 2026, 7:19 AM EDT
Completed Phase 2 Interventional

Dose-Escalating Study of BG9924 in Combination With Methotrexate in Active Rheumatoid Arthritis

NCT00292422
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
BG9924
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
3
States / cities
Lansing, Michigan • St Louis, Missouri • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 30, 2007 · Synced Jul 23, 2026, 7:19 AM EDT