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ClinicalTrials.gov public records Last synced Oct 10, 2026, 1:31 PM EDT

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Showing 73–96 of 488 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Diphenhydramine (Benadryl) Clear all
Completed No phase listed Observational Accepts healthy volunteers

Effects of Genotype on CYP2C9 Drug Interactions

NCT01061112
View directory record Official record
Conditions
Healthy
Interventions
Flurbiprofen Control - Flurbiprofen Only, Flurbiprofen Inhibition - Flurbiprofen & Fluconazole, Ketoprofen Control - Ketoprofen Only, Ketoprofen Inhibition - Ketoprofen & Fluconazole, Tolbutamide Control - Tolbutamide Only, Tolbutamide Inhibition - Tolbutamide & Fluconazole
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 18, 2019 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 3 Interventional Results available

Evaluate Analgesic/Sedative Efficacy of Naproxen Sodium and Diphenhydramine in Patients With Postsurgical Dental Pain

NCT01280591
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Naproxen sodium 440 mg / DPH 50 mg (BAY98-7111), Naproxen sodium 220 mg / DPH 50 mg (BAY98-7111), Naproxen sodium 440 mg (BAYH6689), DPH 50 mg
Drug
Lead sponsor
Bayer
Industry
Eligibility
12 Years to 45 Years
Enrollment
712 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
2
States / cities
Austin, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 8, 2015 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Wilm's Tumor 1 Protein Vaccine to Treat Cancers of the Blood

NCT00923910
View directory record Official record
Conditions
Leukemia, Acute Myelogenous (AML), Leukemia, Acute Lymphocytic (ALL), Leukemia, Chronic Myelogenous (CML), Myelodysplastic Syndrome (MDS), Non-Hodgkin's Lymphoma (NHL)
Interventions
WT1 Peptide-Pulsed Dendritic Cells, Donor Lymphocytes, IL-4, KLH, WT1 Peptides, Endotoxin, Diphenhydramine, Acetaminophen
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
1 Year to 74 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 12, 2017 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 1 Interventional

A Dose Escalation and Expansion Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of RO7283420.

NCT04580121
View directory record Official record
Conditions
Acute Myeloid Leukemia
Interventions
RO7283420, Tocilizumab, Dasatinib, Dexamethasone, Paracetamol/acetaminophen, Diphenhydramine
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
Sacramento, California • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 3, 2024 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 2 Interventional Results available

Simulated Driving Study in Restless Legs Syndrome

NCT01332318
View directory record Official record
Conditions
Restless Legs Syndrome
Interventions
XP13512, Diphenhydramine, Placebo
Drug
Lead sponsor
XenoPort, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jul 26, 2013 · Synced Oct 10, 2026, 1:31 PM EDT
Terminated Phase 1 Interventional Results available

Intratumor Injection of Anti-Mesothelin Immunotoxin LMB-100 With Ipilimumab in Malignant Mesothelioma

NCT04840615
View directory record Official record
Conditions
Mesothelioma
Interventions
LMB-100, ipilimumab, Diphenhydramine, Famotidine, Acetaminophen, Dexamethasone, Biopsy, FDG-PET, CT CAP, MRI, ECG, Echocardiogram
Biological · Drug · Procedure + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 120 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 2, 2024 · Synced Oct 10, 2026, 1:31 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Use of Driving Tests to Evaluate Patient Performance on Oral Opioids

NCT00659035
View directory record Official record
Conditions
Chronic Pain
Interventions
Not listed
Lead sponsor
Asokumar Buvanendran
Other
Eligibility
18 Years to 80 Years
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 4 Interventional

Telmisartan vs. Valsartan in Patients With Mild to Moderate Hypertension Following a Missed Dose

NCT00034840
View directory record Official record
Conditions
Hypertension
Interventions
telmisartan, valsartan
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
490 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2002
U.S. locations
16
States / cities
Long Beach, California • Los Angeles, California • Orange, California + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2013 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 4 Interventional Results available

Do Angiotensin Receptor Blockers Mitigate Progression to Acute Respiratory Distress Syndrome With SARS-CoV-2 Infection

NCT04340557
View directory record Official record
Conditions
SARS-CoV Infection
Interventions
Losartan
Drug
Lead sponsor
Sharp HealthCare
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
3
States / cities
La Mesa, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated May 26, 2021 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 2 Interventional Results available

BMS 247550 to Treat Kidney Cancer

NCT00030992
View directory record Official record
Conditions
Renal Cell Carcinoma
Interventions
BMS-247550, Ranitidine, Diphenhydramine
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 20, 2012 · Synced Oct 10, 2026, 1:31 PM EDT
Recruiting Phase 1 Interventional

The Potential Therapeutic Effects of Psychedelic, N, N-dimethyltryptamine (DMT), on Alcohol Use Disorder (AUD)

NCT06070649
View directory record Official record
Conditions
Alcohol Use Disorder (AUD), Alcohol-Related Disorders, Alcohol Use
Interventions
0.3mg/kg/min Dimethyltryptamine + Normal Saline infusion, 0.2 mg/kg/min + Dimethyltryptamine 0.01mg/kg/min infusion, 25 mg Diphenhydramine (5 min) + Normal Saline
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 65 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 2Phase 3 Interventional Results available

A Study to Evaluate the Safety of Rituximab Retreatment in Subjects With Systemic Lupus Erythematosus

NCT00137969
View directory record Official record
Conditions
Lupus Erythematosus, Systemic
Interventions
Rituximab, Placebo, Prednisone, Acetaminophen, Diphenhydramine
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
16 Years to 75 Years
Enrollment
262 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
63
States / cities
Birmingham, Alabama • Huntsville, Alabama • Paradise Valley, Arizona + 51 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2019 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 1 Interventional

J591 in Patients With Advanced Prostate Cancer and Unfavorable Circulating Tumor Cell Counts

NCT02552394
View directory record Official record
Conditions
Prostate Cancer
Interventions
huJ591
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 4 Interventional Results available

Hydromorphone Versus Prochlorperazine + Diphenhydramine for Acute Migraine

NCT02389829
View directory record Official record
Conditions
Migraine
Interventions
Hydromorphone, Prochlorperazine, Diphenhydramine
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
21 Years and older
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Aug 31, 2018 · Synced Oct 10, 2026, 1:31 PM EDT
Recruiting Phase 2 Interventional

A Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of Obinutuzumab in Adolescents With Active Class III or IV Lupus Nephritis and the Safety and PK of Obinutuzumab in Pediatric Participants

NCT05039619
View directory record Official record
Conditions
Lupus Nephritis
Interventions
Obinutuzumab, Placebo, Mycophenolate Mofetil, Acetaminophen/paracetamol, Diphenhydramine hydrochloride (HCl), Methylprednisolone, Prednisone
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
5 Years to 17 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
11
States / cities
Loma Linda, California • San Francisco, California • Aurora, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 10, 2026, 1:31 PM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Isatuximab in Combination With Lenalidomide and Dexamethasone in High-risk Smoldering Multiple Myeloma

NCT04270409
View directory record Official record
Conditions
Plasma Cell Myeloma
Interventions
Isatuximab SAR650984, Lenalidomide, Dexamethasone, Montelukast or equivalent, Acetaminophen, Diphenhydramine or equivalent, Methylprednisolone or equivalent
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
337 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2033
U.S. locations
9
States / cities
Los Angeles, California • Denver, Colorado • Jacksonville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2025 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 1 Interventional

Repeat Dosing of Psilocybin in Migraine Headache

NCT04218539
View directory record Official record
Conditions
Migraine Headache
Interventions
Psilocybin, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 9, 2024 · Synced Oct 10, 2026, 1:31 PM EDT
Terminated Phase 2Phase 3 Interventional

COVID MED Trial - Comparison Of Therapeutics for Hospitalized Patients Infected With COVID-19

NCT04328012
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
Losartan, Placebo
Drug
Lead sponsor
Bassett Healthcare
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cooperstown, New York
Source: ClinicalTrials.gov public record
Updated Mar 24, 2022 · Synced Oct 10, 2026, 1:31 PM EDT
Withdrawn Not applicable Interventional

Prochlorperazine vs Imitrex for Acute Migraine in the Emergency Department

NCT00573599
View directory record Official record
Conditions
Acute Migraine Headache
Interventions
prochlorperazine and benadryl IV, Imitrex SubQ, saline IV
Drug
Lead sponsor
United States Naval Medical Center, Portsmouth
Federal
Eligibility
18 Years to 50 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
1
States / cities
Portsmouth, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 19, 2025 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Not applicable Interventional Results available

Real-time Decision Support for Postoperative Nausea and Vomiting (PONV) Prophylaxis

NCT02625181
View directory record Official record
Conditions
Postoperative Nausea and Vomiting
Interventions
Automated recommendation at the start of the case, Automated notification at the start of surgery, Preoperative recommendations: by email, Automated notification at the end of surgery, Anesthesia Information Management System (AIMS), Perioperative Data Warehouse (PDW), General anesthesia, Elective surgery, Propofol, Sevoflurane, Isoflurane, Desflurane, Scopolamine, Droperidol, Haloperidol, Dexamethasone, Promethazine, Meclizine, Aprepitant, Metoclopramide, Fentanyl, Sufentanil, Alfentanil, Remifentanil, Morphine, Meperidine, Hydromorphone, Methadone, Oxycodone, Oxymorphone, Hydrocodone, Ketamine, Ondansetron, Granisetron, Dolasetron mesylate, Palonosetron, Tropisetron, Ramosetron
Procedure · Device · Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
27,034 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 7, 2019 · Synced Oct 10, 2026, 1:31 PM EDT
Terminated Not applicable Interventional

Controlled Clinical Trial of Antiviral Cytotoxic T Lymphocyte (CTL) Infusion Following Combination Antiretroviral Drug Therapy for Asymptomatic HIV-1 Infection

NCT00000875
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Diphenhydramine hydrochloride, Lymphocytes, Activated, Lamivudine, Zidovudine, Acetaminophen, Aldesleukin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2003
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 14, 2016 · Synced Oct 10, 2026, 1:31 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

A Phase 1-2 Trial of Cetuximab in Combination With Oxaliplatin, Capecitabine, and Radiation Therapy Followed by Surgery for Locally-advanced Rectal Cancer

NCT00226941
View directory record Official record
Conditions
Rectal Cancer, Colo-rectal Cancer
Interventions
Cetuximab, Oxaliplatin, Capecitabine, Radiotherapy, Diphenhydramine hydrochloride (HCl)
Drug · Radiation
Lead sponsor
George Albert Fisher
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 8, 2017 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 4 Interventional

Irbesartan Versus Placebo in Combination With Ramipril for Treatment of Albuminuria

NCT00095290
View directory record Official record
Conditions
Albuminuria
Interventions
Ramipril + Irbesartan, Ramipril + Placebo
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
55 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
11
States / cities
Tustin, California • Miami, Florida • West Palm Beach, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2011 · Synced Oct 10, 2026, 1:31 PM EDT
Completed Phase 1 Interventional

An Open-label, Phase 1 Study to Determine the Maximum Tolerated Dose of HLX07,in Patients With Advanced Solid Cancers

NCT02648490
View directory record Official record
Conditions
Solid Tumour
Interventions
HLX07, Acetaminophen, dexamethasone, diphenhydramine, 5-HT3 inhibitor
Drug
Lead sponsor
Henlix, Inc
Industry
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Fremont, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Oct 10, 2026, 1:31 PM EDT