You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: March 20, 2025

CLINICAL TRIALS PROFILE FOR BENADRYL


✉ Email this page to a colleague

« Back to Dashboard


All Clinical Trials for Benadryl

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00011804 ↗ Topiramate in the Treatment of Sciatica Completed National Institute of Dental and Craniofacial Research (NIDCR) Phase 2 2001-02-01 This study will test the effectiveness of topiramate to treat pain caused by lumbar radiculopathy, or sciatica. Sciatica results from damage to the lumbar nerve roots, typically causing back pain and sharp, shooting pain down one or both legs. Although sciatica is common, there are no good treatments for it. Topiramate belongs to a group of medications commonly used to treat pain caused by nerve damage. Patients between 18 and 75 years of age who have had sciatica pain daily for at least 3 months may be eligible for this study. (This is taken from the first paragraph of the Qualification Criteria in the consent form. The inclusion criteria on page 6 of the protocol say "low back pain of 3 months duration or longer present at least 5 out of 7 days a week" and signs and symptoms of lumbar radiculopathy. Which is correct?) Participants will provide a medical history, as well as occupational and social information. They will undergo a standard neurological examination, including a test of cognitive (thinking) abilities, muscular function, reflexes and a sensory examination. The latter involves testing with a pin placed on the surface of the skin. Participants will also have routine blood tests and will fill out questionnaires on their daily functioning and psychological well being. Additional procedures may include magnetic resonance imaging (MRI) scans and possible referral to a psychiatrist for evaluation of depression or emotional difficulties. This "cross-over" study consists of two parts. In one part, patients will receive topiramate and in the other, an active placebo. An active placebo is a drug that does not work for the problem being studied but whose side effects are like those of the test drug. Diphenhydramine (Benadryl) is the active placebo used in this study. Diphenhydramine is an allergy medication with very mild side effects, such as drowsiness. During both parts of the study-topiramate and placebo-patients will keep a daily log in which they rate their pain, record other procedures they undergo, such as injections and manipulations, and record medication side effects. In the first week of the study, patients will remain on their current medications and record pain levels once a day. After the first week, they will begin taking the study drugs-either topiramate in increasing doses ranging from 50 to 400 mg. or diphenhydramine in doses ranging from 6.25 to 50 mg. The drug doses will be increased gradually over 4 weeks to minimize possible side effects. Increases will continue until the maximum tolerated dose is reached. Patients will continue on the highest tolerated dose for two weeks and then be tapered off gradually over 12 days. They will remain off drugs completely for a 2-day washout period and then begin the next treatment. Those who took topiramate for the first part will take diphenhydramine for the second part and vice versa. A study nurse will call patients twice a week throughout the study to check for problems and answer questions. A physician will see patients 6 weeks after the start of each treatment. During the last visit, at the end of the study, patients will repeat the questionnaires they filled out at the beginning of the study. Patients and their doctors will be informed of the medications that were effective in each individual's care.
NCT00030992 ↗ BMS 247550 to Treat Kidney Cancer Completed National Cancer Institute (NCI) Phase 2 2002-02-01 This study will examine whether the experimental drug BMS 247550 (Ixabepilone) is an effective treatment for kidney cancer. BMS 247550 belongs to a class of drugs called epothilones that interfere with the ability of cancer cells to divide. In the way they kill cells, they are very similar to a class of compounds known as the taxanes, which include the drug Taxol. Other characteristics of the epothilones, however, enable them to work in cells that are resistant to Taxol. Patients 18 years of age or older with kidney cancer that has not spread to the central nervous system (unless the brain tumor has remained stable for at least six months after surgical or radiation treatment) may be eligible for this study. Pregnant or nursing women may not participate. Candidates are screened with various tests that may include blood and urine tests, electrocardiogram (EKG), and chest x-ray. Computerized tomography (CT) scans or X-rays, and possibly nuclear medicine studies may be done to determine the extent of disease. Participants receive BMS 247550 by a 1-hour infusion into a vein for 5 consecutive days (days 1, 2, 3, 4 and 5) of each 21-day treatment cycle. Patients must stay in the National Institutes of Health (NIH) area near Bethesda, Maryland, for 7 to 8 days during the first treatment cycle and for the 5 days of treatment in subsequent cycles. The total number of cycles will vary among patients, depending on their individual clinical situation. The drug dose may be increased gradually in subsequent cycles in patients who can tolerate such increases. In addition, participants undergo the following tests and procedures: - Periodic physical examinations and frequent blood tests - X-ray and other imaging studies to determine if the tumor is responding to the treatment. - Tumor biopsies to confirm the diagnosis or spread of tumor and to examine the reaction of certain proteins in cancer cells to BMS 247550. Two biopsies will be done. For this procedure, a small piece of tumor tissue is withdrawn through a needle under local anesthetic. Treatment will be stopped in patients whose tumor grows while receiving BMS 247550. Patients whose tumor disappears completely will be followed at NIH periodically for examinations and tests. Patients whose disease does not completely resolve or whose disease recurs may be advised of other appropriate research protocols at NIH or, if none are available, will be returned to the care of their local doctor.
NCT00038402 ↗ Evaluation of the Addition of Herceptin to Standard Chemotherapy in the Neoadjuvant Setting for Operable Breast Cancer Completed Genentech, Inc. Phase 3 2001-04-01 The purpose of this study is to evaluate the addition of Herceptin to standard chemotherapy treatment of patients newly diagnosed with operable breast cancer. Other objectives: 1) to evaluate the potential of this therapy to reduce the size of the tumor and increase the possibility of breast conservative surgery, 2) evaluate the ability of this regimen to prevent recurrence of breast cancer and impact on survival, 3) determine side effect profile with the addition of Herceptin, and 4) evaluate significance of HER2 expression by two different methods.
NCT00038402 ↗ Evaluation of the Addition of Herceptin to Standard Chemotherapy in the Neoadjuvant Setting for Operable Breast Cancer Completed M.D. Anderson Cancer Center Phase 3 2001-04-01 The purpose of this study is to evaluate the addition of Herceptin to standard chemotherapy treatment of patients newly diagnosed with operable breast cancer. Other objectives: 1) to evaluate the potential of this therapy to reduce the size of the tumor and increase the possibility of breast conservative surgery, 2) evaluate the ability of this regimen to prevent recurrence of breast cancer and impact on survival, 3) determine side effect profile with the addition of Herceptin, and 4) evaluate significance of HER2 expression by two different methods.
NCT00038623 ↗ Study Of Yttrium-ibritumomab (Zevalin) For the Treatment Of Patients With Relapsed And Refractory Mantle Cell Lymphoma Completed Biogen Phase 2 2002-04-01 Study of Yttrium-ibritumomab (Zevalin) For the treatment of Patients with Relapsed & Refractory Mantle Cell Lymphoma
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for Benadryl

Condition Name

Condition Name for Benadryl
Intervention Trials
Leukemia 19
Lymphoma 14
Chronic Lymphocytic Leukemia 9
Headache 6
[disabled in preview] 0
This preview shows a limited data set
Subscribe for full access, or try a Trial

Condition MeSH

Condition MeSH for Benadryl
Intervention Trials
Leukemia 28
Lymphoma 23
Leukemia, Lymphoid 21
Leukemia, Lymphocytic, Chronic, B-Cell 16
[disabled in preview] 0
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Locations for Benadryl

Trials by Country

Trials by Country for Benadryl
Location Trials
United States 196
Canada 11
China 1
Taiwan 1
Puerto Rico 1
This preview shows a limited data set
Subscribe for full access, or try a Trial

Trials by US State

Trials by US State for Benadryl
Location Trials
Texas 75
California 15
New York 11
Maryland 11
Massachusetts 9
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Progress for Benadryl

Clinical Trial Phase

Clinical Trial Phase for Benadryl
Clinical Trial Phase Trials
Phase 4 15
Phase 3 11
Phase 2 72
[disabled in preview] 51
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Status

Clinical Trial Status for Benadryl
Clinical Trial Phase Trials
Completed 86
Recruiting 26
Terminated 26
[disabled in preview] 19
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Sponsors for Benadryl

Sponsor Name

Sponsor Name for Benadryl
Sponsor Trials
M.D. Anderson Cancer Center 58
National Cancer Institute (NCI) 16
Baylor College of Medicine 13
[disabled in preview] 21
This preview shows a limited data set
Subscribe for full access, or try a Trial

Sponsor Type

Sponsor Type for Benadryl
Sponsor Trials
Other 212
Industry 65
NIH 29
[disabled in preview] 19
This preview shows a limited data set
Subscribe for full access, or try a Trial

Benadryl: Clinical Trials, Market Analysis, and Projections

Introduction to Benadryl

Benadryl, also known as diphenhydramine, is a first-generation antihistamine widely used for treating various allergic reactions and sleep disturbances. Here, we will delve into recent clinical trials, market analysis, and future projections for this drug.

Clinical Trials: Efficacy and Safety

The TIRED Study

One notable clinical trial involving diphenhydramine is the Trial of Infant Response to Diphenhydramine (TIRED) study. This double-blind, randomized, controlled trial aimed to assess the effectiveness of diphenhydramine in reducing nighttime awakenings and improving sleep quality in infants.

  • Key Findings: The study found that diphenhydramine was no more effective than a placebo in reducing nighttime awakenings or improving overall parental happiness with sleep for infants. The trial was stopped early due to the lack of effectiveness demonstrated by diphenhydramine[1].

  • Adverse Effects: The study reported no significant adverse effects that caused participants to stop the study early. However, some mild adverse effects such as hyperactivity and diarrhea were noted in both the placebo and diphenhydramine groups[1].

Market Analysis

Current Market Size and Growth

The diphenhydramine market is experiencing significant growth driven by several factors:

  • Global Market Size: As of 2025, the global market size for diphenhydramine is estimated to be approximately USD 0.99 billion, with a projected growth to USD 1.14 billion by 2030 at a CAGR of 2.3%[3].

  • Regional Dominance: North America holds the largest market share due to the high prevalence of allergies and colds, along with well-established distribution channels and healthcare infrastructure[2].

Market Trends

Several trends are shaping the diphenhydramine market:

  • Extended-Release Formulations: There is a growing demand for extended-release formulations due to their convenience and extended relief[2].

  • Non-Drowsy Options: Consumers are increasingly preferring non-drowsy antihistamine options, which is influencing the development of new formulations[2].

  • Combination Therapies: The use of diphenhydramine in combination therapies is expanding to enhance effectiveness[2].

  • Over-the-Counter Sales: Increased self-care awareness is leading to a surge in over-the-counter sales of diphenhydramine[2].

  • Generic Formulations: There is a growing acceptance of generic formulations to reduce costs[2].

Product Insights

  • Dosage Forms: Diphenhydramine is available in various dosage forms, including tablets, capsules, liquids, and injectables. Oral formulations are expected to dominate due to ease of administration[2].

  • Brand and Generic Options: The market offers a wide range of brands and generic options, with non-prescription availability for low-dose formulations and prescription-only for high-dose formulations[2].

Market Projections

Future Growth

The diphenhydramine market is projected to continue growing over the next several years:

  • CAGR: The market is expected to grow at a CAGR of 2.3% from 2023 to 2030[3].

  • Regional Growth: Asia Pacific is estimated to be the fastest-growing region, while North America will continue to hold the largest market share[5].

  • Market Concentration: The market concentration is low, indicating a competitive landscape with multiple players[5].

Key Players

Major players in the antihistamine market, including diphenhydramine, are:

  • Johnson and Johnson
  • Novartis
  • Pfizer
  • Merck and Co.
  • Bayer[5]

Key Takeaways

  • Clinical Trials: Diphenhydramine has shown limited efficacy in specific clinical trials, such as the TIRED study, highlighting the need for careful consideration of its use.
  • Market Size and Growth: The global diphenhydramine market is growing, driven by increasing demand for allergic and sleep disorder treatments.
  • Market Trends: Extended-release formulations, non-drowsy options, and combination therapies are key trends shaping the market.
  • Regional Dominance: North America currently holds the largest market share, with Asia Pacific expected to be the fastest-growing region.

FAQs

What was the outcome of the TIRED study on diphenhydramine?

The TIRED study found that diphenhydramine was no more effective than a placebo in reducing nighttime awakenings or improving overall parental happiness with sleep for infants[1].

What is the current global market size for diphenhydramine?

As of 2025, the global market size for diphenhydramine is estimated to be approximately USD 0.99 billion[3].

Which region is expected to be the fastest-growing market for diphenhydramine?

Asia Pacific is estimated to be the fastest-growing region for the diphenhydramine market[5].

What are the key trends driving the diphenhydramine market?

Key trends include growing demand for extended-release formulations, increasing preference for non-drowsy options, expanding use in combination therapies, surge in over-the-counter sales, and growing acceptance of generic formulations[2].

Who are the major players in the diphenhydramine market?

Major players include Johnson and Johnson, Novartis, Pfizer, Merck and Co., and Bayer[5].

Sources

  1. The Trial of Infant Response to Diphenhydramine: The TIRED Study. JAMA Pediatrics.
  2. Diphenhydramine Market's Evolution: Key Growth Drivers 2025-2033. Data Insights Market.
  3. Diphenhydramine Market Size, Forecast | Growth Report [2030]. Verified Market Reports.
  4. Can this Medication Reverse MS? Brain Biomarker Shows It Can. UCSF News.
  5. Antihistamine Market Size & Share Analysis - Growth Trends. Mordor Intelligence.

More… ↓

⤷  Try for Free

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.