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PharmacokineticsPhase 1NCT03766984

Pharmacokinetic Non-interaction Study With a Fixed-dose Combination Tablet With Tramadol and Diclofenac

A Phase 1 study testing Diclofenac sodium 25 mg, Tramadol hydrochloride 25 mg and Diclofenac sodium 25 mg/Tramadol hydrochloride 25 mg in people with Pharmacokinetics, run by Grünenthal GmbH at 1 site in Mexico.

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 objective of the study was to evaluate whether or not there is a substantial pharmacokinetic interaction between diclofenac and tramadol in a new formulation of a fixed-dose combination of diclofenac 25 milligrams (mg) and tramadol 25 mg for oral administration. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Pharmacokinetics
What is being tested?
Diclofenac sodium 25 mg, Tramadol hydrochloride 25 mg and Diclofenac sodium 25 mg/Tramadol hydrochloride 25 mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteMexico
Study dates
7 Jun 2015to 23 Jun 2015
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

  • Man or woman between 18 and 55 years of age.
  • Women with use of a barrier method as a contraceptive.
  • Body mass index equal to or above 18.0 and equal to or less than 27.0 kilograms per square meter.
  • Clinically healthy. If the clinical history, the registration of vital signs and the physical examination did not show abnormal deviations that avoid their participation in a clinical study.
  • Without a history of allergic reactions to the study drug.
  • Stable vital signs during the selection (heart rate, respiratory rate, blood pressure at rest and axillary body temperature).
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  • Laboratory studies: complete blood count, blood chemistry of 24 items, urinalysis, anti-human immunodeficiency virus (HIV) 1, anti-HIV2, anti-hepatitis B surface antigen (HBs) and anti-hepatitis C virus (HCVs) antibodies, and serologic test for syphilis [Venereal Disease Research Laboratory test]) within normal ranges according to the reference laboratory, or that the deviations are not clinically significant. If the deviation has no clinical significance, it may be justified the inclusion of the participant to the clinical study. The age of the report of the clinical laboratory studies must not be greater than 3 months.
  • Electrocardiogram (ECG) with no pathological alterations, with validity of no more than 3 months.
  • The participant accepts the restrictions and indications described in the protocol and internal regulations.
  • The participant has read and understood the relevant aspects of the clinical study and gives its authorization for participation by signing the informed consent form before inclusion on the clinical study and performing any procedure.

Who cannot join

  • Findings in the clinical history, vital signs and/or physical examination that show abnormal conditions of the general state of health of the participant that avoid its participation in a clinical study.
  • Recent exposure to the study drug between the 30 days prior or any other medication by prescription or self consumed between the 14 days prior to the start of the study, or that do not accept to avoid its consumption during the course of the study.
  • Surgery during the 30 days prior to the start of the study.
  • Suspicion or evidence of infection by Human Immunodeficiency Virus (HIV), hepatitis B virus (HBV) and/or hepatitis C virus (HCV).
  • Serologic test for syphilis (Venereal Disease Research Laboratory test) positive.
  • Known hypersensitivity to any medication.
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  • Blood donation equal to or above 1 unit (0.5 liters) during the 30 days prior to the selection.
  • Participants who have special food requirements or food restrictions.
  • Women in the breastfeeding period and/or pregnant.
  • Positive results in the qualitative test of pregnancy in urine (only women).
  • Positive result in the qualitative detection of drugs of abuse.
  • Participation in a clinical study Phase 1, 2 or 3 or bioavailability/ bioequivalence studies during the 3 months previous to the selection.
  • The participant does not give his or her authorization to participate in the study through the signing of an informed consent, or is not willing to follow the indications and/or restrictions of the protocol and rules of the procedure.
  • The participant is vulnerable or potentially vulnerable by which cannot freely express his/her consent by subordination of the principal investigator or by coercion of any third party.

Trial locations and contacts

1 site in 1 country.

Mexico1 site
  • Clinical Unit of Biodextra, S.A. de C.V.

    Mexico City, CP 09360

Other trials in Mexico

About this study

Official title: Study of Non-pharmacokinetic Interaction Between Diclofenac 25 mg and 25 mg Tramadol With the Fixed-dose Combination Tablets of the Two Drugs Administered to Healthy Subjects of Both Genders in Fasting State

The objective of the study was to evaluate whether or not there is a substantial pharmacokinetic interaction between diclofenac and tramadol in a new formulation of a fixed-dose combination of diclofenac 25 milligrams (mg) and tramadol 25 mg for oral administration. The study was conducted in healthy participants of both genders.

Read the detailed description

After a screening period of about 2 weeks, 36 eligible healthy men and women were randomly allocated to receive 3 sequential treatments in the following order:

  • a single dose of diclofenac followed by a single dose of the fixed-dose combination of diclofenac/tramadol followed by a single dose of tramadol
  • a single dose of tramadol followed by a single dose of the fixed-dose combination of diclofenac/tramadol followed by a single dose of diclofenac.

There were washout periods of 7 days between treatments.

Sixteen blood samples were collected per participant: at pre-dose and 0.16, 0.33, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24 and 36 hours after administration of each of the study drugs.

The pharmacokinetic parameters and relative bioavailabilities of diclofenac and tramadol (and of the tramadol metabolite M1) were determined for the new fixed-dose combination product and were compared to the single compound reference products.

Furthermore, the safety (frequency of adverse events) and tolerability of the new fixed-dose combination of diclofenac 25 mg and 25 mg tramadol in healthy men and women was assessed.

Being tested
Diclofenac sodium 25 mg, Tramadol hydrochloride 25 mg, Diclofenac sodium 25 mg/Tramadol hydrochloride 25 mg
Keywords
fixed-dose combination, diclofenac, tramadol, interaction

What participants receive

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

  • Diclofenac sodium 25 mgDrug

    Diclofenac sodium 25 mg Tablets (Laboratorios Tecnandina S.A., Ecuador)

  • Tramadol hydrochloride 25 mgDrug

    Tramadol hydrochloride 25 mg Tablets (Laboratorios Tecnandina S.A., Ecuador)

  • Diclofenac sodium 25 mg/Tramadol hydrochloride 25 mgDrug

    Also called Adorlan (Trade Mark)

    Fixed-dose combination tablet containing diclofenac sodium 25 mg and tramadol hydrochloride 25 mg (Laboratorios Tecnandina S.A., Ecuador)

Study groups in NCT03766984
Study groupRoleWhat they receive
Diclofenac 25 mgExperimentalParticipants receive 1 tablet of diclofenac sodium 25 mg with 250 milliliters of purified water.
Receives: Drug: Diclofenac sodium 25 mg
Tramadol 25 mgExperimentalParticipants receive 1 tablet of tramadol hydrochloride 25 mg with 250 milliliters of purified water.
Receives: Drug: Tramadol hydrochloride 25 mg
Diclofenac/Tramadol 25 mg/25 mg FDCExperimentalParticipants receive 1 fixed-dose combination tablet of diclofenac sodium 25 mg/tramadol hydrochloride 25 mg with 250 milliliters of purified water.
Receives: Drug: Diclofenac sodium 25 mg/Tramadol hydrochloride 25 mg

What is being measured

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

  1. Maximum plasma concentration (Cmax) of diclofenac

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Diclofenac concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

  2. Maximum plasma concentration (Cmax) of tramadol

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tramadol concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

  3. Area under the plasma concentration curve from the administration until the time t (AUC0-t) of diclofenac

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Diclofenac concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

  4. Area under the plasma concentration curve from the administration until the time t (AUC0-t) of tramadol

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tramadol concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

Secondary outcomes (14)
  1. Maximum plasma concentration (Cmax) of tramadol metabolite M1

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tramadol M1 concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

  2. Area under the plasma concentration curve from the administration until the time t (AUC0-t) of tramadol metabolite M1

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tramadol M1 concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

  3. Area under the plasma concentration curve from 0 to infinity (AUC0-inf) of tramadol

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tramadol concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

  4. Area under the plasma concentration curve from 0 to infinity (AUC0-inf) of tramadol metabolite M1

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tramadol M1 concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

  5. Area under the plasma concentration curve from 0 to infinity (AUC0-inf) of diclofenac

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Diclofenac concentrations were determined using validated analytical methods.

    Measured: From pre-dose to 36 hours post-dose

  6. Time to maximum plasma concentration (Tmax) for tramadol

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tmax was calculated based on Cmax data for tramadol.

    Measured: From pre-dose to 36 hours post-dose

  7. Time to maximum plasma concentration (Tmax) for tramadol metabolite M1

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tmax was calculated based on Cmax data for tramadol M1.

    Measured: From pre-dose to 36 hours post-dose

  8. Time to maximum plasma concentration (Tmax) for diclofenac

    16 plasma samples were collected from pre-dose to 36 hours post-dose. Tmax was calculated based on Cmax data for diclofenac

    Measured: From pre-dose to 36 hours post-dose

  9. Elimination half life (t half) for tramadol

    16 plasma samples were collected from pre-dose to 36 hours post-dose. t half was calculated based on plasma concentration data for tramadol.

    Measured: From pre-dose to 36 hours post-dose

  10. Elimination half life (t half) for tramadol metabolite M1

    16 plasma samples were collected from pre-dose to 36 hours post-dose. T half was calculated based on plasma concentration data for tramadol M1.

    Measured: From pre-dose to 36 hours post-dose

  11. Elimination half life (t half) for diclofenac

    16 plasma samples were collected from pre-dose to 36 hours post-dose. t half was calculated based on plasma concentration data for diclofenac.

    Measured: From pre-dose to 36 hours post-dose

  12. Elimination rate constant (KE) for tramadol

    16 plasma samples were collected from pre-dose to 36 hours post-dose. KE will be calculated based on the plasma concentrations for tramadol.

    Measured: From pre-dose to 36 hours post-dose

  13. Elimination rate constant (KE) for tramadol metabolite M1

    16 plasma samples were collected from pre-dose to 36 hours post-dose. KE was calculated based on the plasma concentrations for tramadol M1.

    Measured: From pre-dose to 36 hours post-dose

  14. Elimination rate constant (KE) for diclofenac

    16 plasma samples were collected from pre-dose to 36 hours post-dose. KE will be calculated based on the plasma concentrations for diclofenac.

    Measured: From pre-dose to 36 hours 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 posted6 Dec 2018
  2. Study start7 Jun 2015
  3. Primary completion23 Jun 2015
  4. Study completion23 Jun 2015

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
Model description
Longitudinal, prospective, crossover, open, randomized, single-dose study with 3 periods, 2 sequences (ACB and BCA), and 3 treatments (A, B, and C) in healthy participants and under fasting conditions.
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03766984
Sponsor's protocol ID
DCLF/TRMD-GRNN-01
Other IDs
HP8001-01
Status last verified
Dec 2018
First submitted
5 Dec 2018
Last updated
11 Dec 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Information available on the Grünenthal Web Site (see URL below for details)

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Diclofenac sodium 25 mg, Tramadol hydrochloride 25 mg and Diclofenac sodium 25 mg/Tramadol hydrochloride 25 mg in people with Pharmacokinetics, run by Grünenthal GmbH at 1 site in Mexico.

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 10 inclusion and 14 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 11 Dec 2018. 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 Mexico. 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?

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?

Maximum plasma concentration (Cmax) of diclofenac (time frame: From pre-dose to 36 hours post-dose). The study lists 4 primary outcomes in all. 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 11 Dec 2018.

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