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Nasal CongestionPhase 1NCT00662337

Bioequivalence Between Two Oral Formulations of Diphenhydramine Hydrochloride

A Phase 1 study testing Diphenhydramine hydrochloride in people with Nasal Congestion, run by Johnson & Johnson Consumer and Personal Products Worldwide.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine if two formulations of diphenhydramine hydrochloride are bioequivalent. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Nasal Congestion
What is being tested?
Diphenhydramine hydrochloride
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
No sites listed yet
Study dates
Oct 2006to Nov 2006
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • healthy male and/or female subjects between the ages of 18 and 55 years, inclusive
  • approximately 18 to 30 kg/m2 BMI
  • total body weight at least 55 kg (121 lbs)
  • able to understand and sign the written Informed Consent Form
  • willing to follow the protocol requirements and comply with protocol restrictions

Who cannot join

  • pregnant or lactating women
  • women of childbearing potential not using acceptable form of contraception 3 months prior to the first dose until completion of follow-up procedures
  • history of allergy, sensitivity, and/or idiosyncratic reaction to Benadryl, diphenhydramine hydrochloride, or diphenhydramine citrate
  • evidence of clinical, dietary or psychiatric deviation from normal that could increase the risk to the subject or research staff or interfere with the interpretation of study results
  • use of licit or illicit drugs
  • participated in any other trials within a specified number of days prior to the first dose of the trial treatment

About this study

Official title: A Randomized, Two-Way Crossover Evaluation of the Bioequivalence Between Two Oral Formulations of Diphenhydramine: ULTRATAB Tablet Versus KAPSEALS Capsule

The purpose of this study is to determine if two formulations of diphenhydramine hydrochloride are bioequivalent.

Read the detailed description

Subjects were required to observe a ten-hour fast and a one-hour fluid restriction prior to each dosing period.

Subjects were randomized into one of two active treatment groups, received supervised dosing of their treatment with approximately eight ounces of water, and were required to maintain fluid restriction for one hour after treatment. Following the one-hour post-dose fluid restriction, subjects could drink water, but consumer no other food or fluids for four hours post-dose.

Following a seven-day washout period, the comparison treatment was administered according to the same procedure as above.

Being tested
Diphenhydramine hydrochloride
Keywords
Bioequivalence, diphenhydramine hydrochloride
Medical subject headings
Nasal Obstruction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Diphenhydramine hydrochlorideDrug

    Also called Benadryl Allergy, 25 mg KAPSEALS capsule, 25 mg ULTRATAB tablets

    After a ten-hour fast and a one-hour fluid restriction prior to each dosing period, subjects received supervised dosing of their first 25 mg treatment with approximately eight ounces of water. Following a seven-day washout, the comparison treatment was administered according to thye same procedure.

Study groups in NCT00662337
Study groupRoleWhat they receive
1ExperimentalDiphenydramine HCl
Receives: Drug: Diphenhydramine hydrochloride

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Bioequivalence was assessed based on the pharmacokinetic variables, Cmax, AUC0-t and AUC0-infinity

    Measured: At 15 minutes pre-dose (0 hour), and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 24, 36 and 48 hours post-dose

Secondary outcomes (1)
  1. The safety analysis included all subjects who took at least one dose of clinical trial test product and had any follow-up information. Subjects in the safety analysis set were summarized and listed, based on actual treatment received.

    Measured: 15 minutes pre-dose (0 hour) through 28 days post-dose

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Apr 2008 (estimated)
  2. Study startOct 2006
  3. Primary completionNov 2006
  4. Study completionNov 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00662337
Sponsor's protocol ID
A2341003
Status last verified
Sep 2011
First submitted
20 Mar 2008
Last updated
8 Sep 2011
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Diphenhydramine hydrochloride in people with Nasal Congestion, run by Johnson & Johnson Consumer and Personal Products Worldwide.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Sep 2011. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Bioequivalence was assessed based on the pharmacokinetic variables, Cmax, AUC0-t and AUC0-infinity (time frame: At 15 minutes pre-dose (0 hour), and at 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 24, 36 and 48 hours post-dose). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Sep 2011.

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