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BioavailabilityEarly Phase 1NCT03145259

Evaluation of Bioavailability of Diclofenac Dermal Products

A Early Phase 1 study testing Diclofenac Epolamine Patch and diclofenac sodium solution in people with Bioavailability, run by University of Maryland, Baltimore at 1 site in United States.

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 study will utilize already FDA-approved marketed diclofenac products in healthy adults to generate data for establishing rate of drug delivery comparisons between diclofenac epolamine patches and diclofenac sodium solution in healthy adults and to determine skin concentrations. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Bioavailability
What is being tested?
Diclofenac Epolamine Patch and diclofenac sodium solution
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited States
Study dates
19 Apr 2017to 15 May 2020
Phase
Early Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Men or non-pregnant, women who are of any ethnic background between the age of 18 to 45 years old
  • Subjects must be non-smokers (must have refrained from the use of nicotine-containing substances, including tobacco products (e.g., cigarettes, cigars, chewing tobacco, snuff, gum, patches or electronic cigarettes) over the previous 2 months and are not currently using tobacco products
  • Provide written informed consent before initiation of any of the study procedures
  • Agree not to participate in another clinical trial/study during the study period or to participate in an investigational drug study for at least 1 month after the last study session
  • Able to adhere to the study protocol and study restrictions
  • Able to participate in all study sessions
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  • Has a volar forearm of either at least 24 cm (9.45 inches) in length or of sufficient size that can accommodate the products to be tested in a study area that begins at least 5 cm (1.97 inches) above the wrist and ends a minimum of 0.5 cm (0.197 inches) below the antecubital fossa (i.e., the bend in the arm at the elbow).
  • Subjects have upper arms large enough to allow for placement of two 140 cm2 [21.7 in2] patches (distance from acromion process of the scapula to olecranon process should be a minimum of 35 cm [13.8 inches]; circumference of upper arms should be a minimum of 28 cm [11.02 inches] and 200 cm2 [31 in2] area for application of solution
  • Subjects deemed to be healthy as judged by the Medically Accountable Investigator (MAI) and determined by medical history, physical examination and medication history
  • Negative urine drug screening test (cannabinoids, amphetamines, barbiturates, benzodiazepine, cocaine, methadone, opiates, PCP)
  • Have normal screening laboratories for white blood cells (WBC), hemoglobin (Hgb), platelets, sodium, potassium, chloride, bicarbonate, blood urea nitrogen (BUN), creatinine, alanine transaminase (ALT) and aspartate aminotransferase (AST)
  • Have normal screening laboratories for urine protein and urine glucose
  • Female subjects must be of non-childbearing potential (as defined as surgically sterile [i.e. history of hysterectomy or tubal ligation] or postmenopausal for more than 1 year), or if of childbearing potential must be non-pregnant at the time of enrollment and on the morning of each study session, and must agree to use hormonal or barrier birth control such as implants, injectables, combined oral contraceptives, some intrauterine devices (IUDs), sexual abstinence, or a vasectomized partner
  • Agrees not to donate blood to a blood bank throughout participation in the study and for at least 3 months after last study session
  • Have a normal ECG; must not have the following to be acceptable: pathologic Q wave abnormalities, significant ST-T wave changes, left ventricular hypertrophy, right bundle branch block, left bundle branch block. (sinus rhythm is between 55-100 beats per minute)
  • Have normal vital signs:
  • Temperature 35-37.9°C (95-100.3°F)
  • Systolic blood pressure 90-165 mmHg
  • Diastolic blood pressure 60-100 mmHg
  • Heart rate 55-100 beats per minute
  • Respiration rate 12-20 breaths per minute

Who cannot join

  • Women who are pregnant, lactating, breast feeding or have a positive serum pregnancy test at enrollment or positive urine pregnancy test on the morning of the first day of each study session
  • Smokers (current use or use over the previous 2 months of nicotine-containing substances, including tobacco products (e.g., cigarettes, cigars, chewing tobacco, snuff, gum, patch or electronic cigarettes)
  • Participation in any ongoing investigational drug trial/study or clinical drug trial/study
  • History as either reported by the subject or evident to the Medically Accountable Investigator (MAI) of infectious disease or skin infection or of chronic skin disease (e.g., psoriasis, atopic dermatitis)
  • History of diabetes
  • History of significant skin cancers (e.g., melanoma, squamous cell carcinoma) except basal cell carcinomas that were superficial and did not involve the investigative sites
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  • Body Mass Index (BMI) ≥30 kg/m2
  • History of chronic obstructive pulmonary disease or cor pulmonale, or substantially decreased respiratory reserve, hypoxia, hypercapnia or pre-existing respiratory depression
  • Active positive Hepatitis B, C and/or HIV serologies
  • Positive urine drug screening test
  • Use of chronic prescription medications during the period 0 to 30 days; or over-the-counter medication (e.g. antihistamines, topical corticosteroids) and short term (<30 days) prescription medications during the period 0-3 days before a study session (vitamins, herbal supplements and birth control medications not included)
  • Currently taking daily oral nonsteroidal anti-inflammatory drug [NSAIDs] (aspirin, ibuprofen, naproxen, etc…)
  • Currently taking daily anticoagulants or within the past month prior to entry into the study (warfarin, heparin, rivaroxaban, dabigatran, etc…), ACE-inhibitors, cyclosporine, diuretics, lithium or methotrexate
  • Donation or loss of greater than one pint of blood within 60 days of entry to the study
  • Any prior adverse reaction or hypersensitivity to diclofenac, aspirin, ibuprofen, naproxen or other nonsteroidal anti-inflammatory drug (NSAID), other inactive ingredients in the patch or topical solution or to adhesives or tapes used to cover or tape strip the treatment sites
  • Received an experimental agent (vaccine, drug, biologic, device, blood product or medication) within 1 month before enrollment in this study or expects to receive an experimental agent during the study
  • Eat or drink anything containing alcohol within 24 hours prior to dose administration
  • Any condition that would, in the opinion of the Medically Accountable Investigator (MAI), place the subject at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol
  • Subject has an obvious difference in skin color between arms or the presence of a skin condition, excessive hair at the application site (upper arms/volar forearms), sunburn, raised moles or scars, open sores at application site (upper arms/volar forearms), scar tissue, tattoo, or coloration that would interfere with placement of diclofenac products, skin assessment, or reactions to diclofenac
  • History of asthma or urticaria,, hypertension, myocardial infarction, thrombotic events, stroke, congestive heart failure, impaired renal function or liver disease
  • History of gastrointestinal bleeding or peptic ulcer disease

Trial locations and contacts

1 site in 1 country.

United States1 site
  • General Clinical Research Center (GCRC) at the University of Maryland Medical Center

    Baltimore, Maryland, 21201

Other trials in United States

About this study

The study will utilize already FDA-approved marketed diclofenac products in healthy adults to generate data for establishing rate of drug delivery comparisons between diclofenac epolamine patches and diclofenac sodium solution in healthy adults and to determine skin concentrations.

Read the detailed description

The study will utilize already FDA-approved marketed diclofenac products in healthy adults to generate data for establishing rate of drug delivery comparisons between diclofenac epolamine patches and diclofenac sodium solution in healthy adults and to determine skin concentrations. This study supports FDA's continuing effort to identify the most accurate, sensitive, reproducible and efficient methods to evaluate topical dermatological drug products.

Conditions
Bioavailability
Being tested
Diclofenac Epolamine Patch, diclofenac sodium solution

What participants receive

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

  • Diclofenac Epolamine PatchDrug

    Also called patch

    patch

  • diclofenac sodium solutionDrug

    Also called solution

    solution

Study groups in NCT03145259
Study groupRoleWhat they receive
Diclofenac patchOtherStudy Session 1: diclofenac epolamine patches (PK) [51 h study duration]
Receives: Drug: Diclofenac Epolamine Patch
Diclofenac solutionOtherStudy Session 2: diclofenac sodium solution (PK) [47 h study duration]
Receives: Drug: diclofenac sodium solution
Diclofenac patch and solutionOtherStudy Session 3: diclofenac epolamine patch pieces and diclofenac sodium solution (no PK, for skin tape stripping) [51 h study duration]
Receives: Drug: Diclofenac Epolamine Patch; Drug: diclofenac sodium solution

What is being measured

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

  1. Serum Diclofenac Concentrations

    Study Session 1: within 60 min prior to dosing, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 24, 27, 30, 32, 51 h Study Session 2: within 60 min prior to dosing, 1, 2, 3, 4, 5, 6, 7, 23, 26, 29, 31, 47 h Study Session 3: no blood samples obtained

    Measured: blood samples obtained over 51 hour time period for study session 1 and over 47 hour time period for study session 2; through study completion

Timeline

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

  1. First posted9 May 2017
  2. Study start19 Apr 2017
  3. Primary completion29 Aug 2019
  4. Study completion15 May 2020

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
Early Phase 1
Primary purpose
Other
Allocation
Non-randomised
Intervention model
Crossover
Model description
The same 12 volunteers received all treatments in three separate study arms.
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03145259
Sponsor's protocol ID
HP-00067047
Status last verified
Jun 2020
First submitted
1 May 2017
Last updated
30 Jun 2020
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Diclofenac Epolamine Patch and diclofenac sodium solution in people with Bioavailability, run by University of Maryland, Baltimore at 1 site in United States.

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 21 inclusion and 21 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 30 Jun 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 Jun 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Serum Diclofenac Concentrations (time frame: blood samples obtained over 51 hour time period for study session 1 and over 47 hour time period for study session 2; through study completion). 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 30 Jun 2020.

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