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Acute PainPhase 3NCT03714672

Tramadol/Diclofenac Fixed-dose Combination Phase III Trial in Acute Pain After Third Molar Extraction

A Phase 3 study testing Tramadol/Diclofenac 50/50, Tramadol/Diclofenac 25/25 and Tramadol 50 in people with Acute Pain, run by Grünenthal GmbH at 8 sites 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

This study evaluated a new drug fixed-dose combination tablet (FDC) called tramadol/diclofenac at two different strengths (fixed doses of 25 milligrams [mg] of tramadol and of diclofenac or of 50 mg each). Tramadol and diclofenac each relieve pain, but they do so by different mechanisms. Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Acute Pain
What is being tested?
Tramadol/Diclofenac 50/50, Tramadol/Diclofenac 25/25 and Tramadol 50
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,151 participants
Where
8 sitesMexico
Study dates
26 Aug 2017to 22 Mar 2018
Phase
Phase 3
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 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • The participant has read the informed consent form, has understood the relevant aspects of the clinical study, and grants his/her authorization to participate by signing the informed consent form prior to the inclusion in the clinical study and the performance of any procedure.
  • Male and female participants above 18 years up to 60 years.
  • Female participants of childbearing potential must be practicing an acceptable method of birth control and must have a negative urine pregnancy test at enrollment with confirmation at the Allocation Visit.
  • Participants are in good health, i.e., the medical record, vital signs, physical examination, and laboratory parameter assessments do not show any abnormal deviations impeding the participation in the clinical study.
  • Participants requiring extraction of 3 or more third molars with 2 mandibular impacted third molars.
  • Clinical and radiological diagnosis of impacted lower third molars.
  • Class I and Class II molars according to Pell and Gregory's classification (Gay Escoda et al. 2004).
  • Participants must be able to swallow the IMPs.

Who cannot join

  • Findings in the medical record, vital signs, and/or physical examination demonstrating abnormal conditions of participant's general state of health preventing his/her participation in the clinical study according to the investigator's opinion.
  • Participant unable to speak, read, or write in Spanish language.
  • Clinical laboratory parameters exceed the pre-defined alert ranges (i.e., 1 standard deviation above or below the upper/lower limit of the normal ranges).
  • Known hypersensitivity to the IMPs, the anesthetic to be used during surgery, or to the rescue medication (ibuprofen, ketorolac).
  • Known alcohol or drug abuse in the last 6 months or any history of seizures. Alcohol abuse is defined as the consumption of more than 3 ounces (about 90 milliliters) of liquor or spirits or 18 ounces (about 530 milliliters) of beer per day, for 5 consecutive days during the 6-month period. Drug abuse is defined as the use of any recreational drug for 5 consecutive days during the 6 month period.
  • Participants who take analgesic medication for chronic pain, monoamine oxidase inhibitors, tricyclic antidepressants, neuroleptics, or other drugs that reduce the seizure threshold within 4 weeks of enrollment.
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  • Pregnant or lactating women.
  • Participants who received systemic corticosteroids or opioid analgesics less than 2 weeks before surgery.
  • Participants with molars linked to the mandibular canal.
  • Participants requiring immediate dental procedures other than third and fourth molars extraction,
  • Participant received a long-acting non-steroidal anti-inflammatory drug within 24 hours or 5 times the elimination half-life of that drug prior to surgery, whatever the longer.
  • Participant received any analgesic medication other than short-acting pre-operative or intra-operative anesthetic agents within 24 hours before taking IMPs.
  • Participant received more than 300 mg of lidocaine in total.
  • Participant received any analgesic medication other than the IMPs immediately after the oral surgical procedure was completed.
  • Baseline pain intensity of the participant after oral surgical procedure remains below 5 points on the 11-point NRS.

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

Mexico8 sites
  • Private Clinic

    Aguascalientes, CP 20230

  • Private Clinic

    Chihuahua City, CP 31203

  • Private Clinic

    León, CP 37160

  • Private Clinic

    Monterrey, Nuevo León, CP 64000

  • Private Clinic

    Monterrey, Nuevo León, CP 64718

  • Private Clinic

    Puebla City, CP 72160

  • University

    San Luis Potosí City, CP 78290

  • Private Clinic

    Zapopan, Jalisco, CP 45030

Other trials in Mexico

About this study

Official title: A Randomized, Double-blind, Multi-site, Comparator-controlled, Phase III Trial to Evaluate the Efficacy and Safety of a Fixed-dose Combination of Tramadol Hydrochloride and Diclofenac Sodium in Acute Moderate to Severe Pain After Third Molar Extraction

This study evaluated a new drug fixed-dose combination tablet (FDC) called tramadol/diclofenac at two different strengths (fixed doses of 25 milligrams [mg] of tramadol and of diclofenac or of 50 mg each). Tramadol and diclofenac each relieve pain, but they do so by different mechanisms. They were used alone as comparator drug in this study. Both are marketed drugs and are standard treatment for acute pain, including wisdom tooth removal.

Read the detailed description

The purpose of this study was to demonstrate that the FDC of Tramadol and Diclofenac 50/50 has superior analgesic effect than the monotherapies and that the FDC of Tramadol and Diclofenac 25/25 has non-inferior analgesic effect than the monotherapies. There was an Enrollment Period, a blinded Treatment Period, and a Follow-up Period. Previously used analgesic medication was washed out for at least 24 hours before surgery. The Treatment Period starts on Day 1 with dental surgery and treatment allocation. Treatment was started within 4 hours after the end of surgery if the participant's pain intensity had reached at least 5 points on the 11-point numerical rating scale (NRS). Each participant received 3 doses of one of the four treatments within 24 hours. One fourth of the participants received the fixed-dose combination tablet at a low dose, one fourth at the higher dose, one fourth received 50 mg of the comparator tramadol alone, and one fourth 50 mg of the comparator diclofenac alone.

The first 2 doses of the investigational medicinal product (IMP) were taken at the site, the last dose in an out-patient setting. Participants returned to the site at 24 hours after the first dose. A Follow-up Period included a final visit at the site or a phone call on Day 14 to assess the participant's safety.

Conditions
Acute Pain
Being tested
Tramadol/Diclofenac 50/50, Tramadol/Diclofenac 25/25, Tramadol 50, Diclofenac 50
Keywords
Wisdom tooth removal, Dental pain
Medical subject headings
Acute Pain, Toothache

What participants receive

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

  • Tramadol/Diclofenac 50/50Drug

    Also called Adorlan Forte (Registered Trademark)

    Each dose comprised 1 fixed-dose combination tablet and 3 placebo tablets or capsules matching the other active treatment groups. Doses were taken 8 hours apart.

  • Tramadol/Diclofenac 25/25Drug

    Also called Adorlan (Registered Trademark)

    Each dose comprised 1 fixed-dose combination tablet and 3 placebo tablets or capsules matching the other active treatment groups. Doses were taken 8 hours apart.

  • Tramadol 50Drug

    Also called Tramadol immediate-release capsule, Tradol (Registered Trademark)

    Each dose comprised 1 capsule containing 50 mg tramadol hydrochloride and 3 placebo tablets matching the other active treatment groups. Doses were taken 8 hours apart.

  • Diclofenac 50Drug

    Also called Voltaren (Registered Trademark) (diclofenac enteric-coated tablet)

    Each dose comprised 1 tablet containing 50 mg diclofenac sodium and 3 placebo tablets or capsules matching the other active treatment groups. Doses were taken 8 hours apart.

Study groups in NCT03714672
Study groupRoleWhat they receive
Tramadol/Diclofenac 50/50ExperimentalParticipants received 3 doses of tramadol hydrochloride/diclofenac sodium 50 mg/50 mg over a 24-hour period if they developed acute moderate to severe pain within 4 hours after third molar extraction.
Receives: Drug: Tramadol/Diclofenac 50/50
Tramadol/Diclofenac 25/25ExperimentalParticipants received 3 doses of tramadol hydrochloride/diclofenac sodium 25 mg/25 mg over a 24-hour period if they developed acute moderate to severe pain within 4 hours after third molar extraction.
Receives: Drug: Tramadol/Diclofenac 25/25
Tramadol 50Active comparatorParticipants received 3 doses of tramadol hydrochloride 50 mg over a 24-hour period if they developed acute moderate to severe pain within 4 hours after third molar extraction.
Receives: Drug: Tramadol 50
Diclofenac 50Active comparatorParticipants received 3 doses of diclofenac sodium 50 mg over a 24-hour period if they developed acute moderate to severe pain within 4 hours after third molar extraction
Receives: Drug: Diclofenac 50

What is being measured

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

  1. Pain Relief Expressed as Total Pain Relief (TOTPAR) Over the 4 Hours Post-dose Period (TOTPAR4)

    Pain relief was assessed by the participant at defined time points after the first IMP dose using a 5-point verbal rating scale (VRS) with categories 0 (none), 1 (a little), 2 (some), 3 (a lot), or 4 (complete). Total Pain Relief (TOTPAR4) is a time-weighted summary measure of the total area under the pain relief curve that integrates serial assessments of a participant's pain over the duration of 4 hours after IMP intake. Minimum and maximum values for TOTPAR4 were 0=worst score and 16=best score, a higher score indicates more pain relief.

    Measured: Up to 4 hours after first dose

Secondary outcomes (9)
  1. Total Pain Relief at 6 Hours Post-dose (TOTPAR6)

    Pain relief was assessed by the participant at defined time points after the first IMP dose using a 5-point VRS with categories 0 (none), 1 (a little), 2 (some), 3 (a lot), or 4 (complete). Total Pain Relief (TOTPAR6) is a time-weighted summary measure of the total area under the pain relief curve that integrates serial assessments of a participant's pain over the duration of 6 hours after IMP intake. Minimum and maximum values for TOTPAR6 were 0=worst score and 24=best score, a higher score indicates more pain relief.

    Measured: Up to 6 hours after first dose

  2. Total Pain Relief at 8 Hours Post-dose (TOTPAR8)

    Pain relief was assessed by the participant at defined time points after the first IMP dose using a 5-point VRS with categories 0 (none), 1 (a little), 2 (some), 3 (a lot), or 4 (complete). Total Pain Relief (TOTPAR8) is a time-weighted summary measure of the total area under the pain relief curve that integrates serial assessments of a participant's pain over the duration of 8 hours after IMP intake. Minimum and maximum values for TOTPAR8 were 0=worst score and 32=best score, a higher score indicates more pain relief.

    Measured: Up to 8 hours after first dose

  3. Summed Pain Intensity Difference (SPID) at 4, 6, 8, and 24 Hours Post-dose

    Pain intensity was assessed by the participant before and at defined time points after the first IMP dose using an 11-point NRS with anchors at 0 for "no pain" and 10 for "pain as bad as you can imagine". Pain Intensity Difference (PIDt) was defined as the difference between baseline pain intensity and pain intensity at time point t, and SPID defined as summed PIDt x [time (hours) elapsed since previous observation]. The SPID scores are the sum of the differences at each time point multiplied by the duration in hours since the previous time point. Positive numbers indicate a reduction in pain [maximum=10 at each time point], and negative numbers indicate an increase in pain [minimum=-10 at each time point]. The overall minimum and maximum are -10 and 10 times the number of hours specified (SPID-4=[-40 to 40], SPID-6=[-60 to 60], SPID-8=[-80 to 80], and SPID-24=[-240 to 240]).

    Measured: Baseline; up to 24 hours after first dose

  4. Time to Achieve a 50 Percent Reduction in Baseline Pain (Pain at Least Half Gone)

    Time (hours) when the participant achieved a 50 percent reduction of baseline (starting) pain. It was assessed at defined time points after the first IMP dose using a YES or NO question for pain half gone.

    Measured: Up to 24 hours after first dose

  5. Time to Onset of First Perceptible Pain Relief

    Participants used one stopwatch to document the time between first IMP dose and when they begin to feel any pain-relieving effect from the IMP.

    Measured: Up to 8 hours after first dose

  6. Time to Onset of Meaningful Pain Relief

    Participants used a second stopwatch to document the time between first IMP dose and when they felt their pain relief was meaningful to them.

    Measured: Up to 8 hours after first dose

  7. Time to Intake of First Rescue Medication Dose

    The time from first IMP dose to first dose of rescue medication (ibuprofen or ketorolac), if needed, within 24 hours post-dose was calculated.

    Measured: First dose to 24 hours after first dose

  8. Subject's Global Evaluation of the Treatment

    Participants documented their overall impression of the analgesic efficacy of the IMPs on a 5-point Likert scale from Excellent (4) to Poor (0).

    Measured: 8 hours after the first dose of IMP or before first intake of rescue medication (whatever the first) and 24 hours after the first dose of IMPs

  9. Incidence and Type of Adverse Events

    The incidence of treatment emergent adverse events (TEAE) reported from first dose (Day 1) to last scheduled contact with the participant on Day 14 was descriptively summarized. Selected TEAEs were events with preferred terms of nausea, vomiting, abdominal pain, gastrointestinal bleeding, dizziness, or hypotension.

    Measured: Day 1 to Day 14

Timeline

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

  1. First posted22 Oct 2018
  2. Study start26 Aug 2017
  3. Primary completion9 Mar 2018
  4. Study completion22 Mar 2018

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
1,151 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03714672
Sponsor's protocol ID
KF8001-01
Other IDs
U1111-1179-2333, KF8001-01
Status last verified
Jul 2019
First submitted
19 Oct 2018
Last updated
24 Jul 2019
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Information available on the Grünenthal Group Web Site (see URL below for details).

Publications

  • Gay Escoda C, Piñera Penalva M, Velasco Vivancos V, Berini Aytés L. Cordales incluidos. Patología, clínica y tratamiento del tercer molar incluído. In: Gay Escoda C, Berini Aytés L. (eds.). Tratado de Cirugía Bucal. Tomo I. Madrid: Ergón; 2004. p. 355-85

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Tramadol/Diclofenac 50/50, Tramadol/Diclofenac 25/25 and Tramadol 50 in people with Acute Pain, run by Grünenthal GmbH at 8 sites 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 8 inclusion and 15 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 24 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 24 Jul 2019). 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?

Pain Relief Expressed as Total Pain Relief (TOTPAR) Over the 4 Hours Post-dose Period (TOTPAR4) (time frame: Up to 4 hours after first dose). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03714672, which also lists 1 linked publication.

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 24 Jul 2019.

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