E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
moderate to severe acute pain after removal of impacted lower third molar |
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E.1.1.1 | Medical condition in easily understood language |
moderate to severe pain after tooth removal |
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E.1.1.2 | Therapeutic area | Diseases [C] - Mouth and tooth diseases [C07] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 18.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10066714 |
E.1.2 | Term | Acute pain |
E.1.2 | System Organ Class | 100000004867 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess the comparability of DKP.TRIS/TRAM.HCl and TRAM.HCl/paracetamol in terms of analgesic efficacy on moderate to severe pain following impacted lower third molar extraction. |
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E.2.2 | Secondary objectives of the trial |
To confirm the safety and tolerability profile of DKP.TRIS/TRAM.HCl following single dose administration. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Properly executed written informed consent.
2. Male or female patients aged more than 18 years.
3. Scheduled for outpatient surgical extraction -under local anaesthesia (i.e. 2% lidocaine with 1:80,000 epinephrine) - of lower third molar teeth, with at least one of which fully or partially impacted in the mandible requiring bone manipulation (e.g. level B or C plus class II or III of the Pell-Gregory scale).
4. Females participating in the study must be either:
- Females of non-childbearing potential, defined as any woman
who had undergone surgical sterilization or is more than 2 years post-menopausal;
- Females of childbearing potential provided that they have a negative pregnancy test at baseline (screening and qualification period) and are routinely using an effective method of birth control resulting in a low failure rate (i.e. hormonal
contraception, intrauterine device, condoms in combination with a spermicidal cream, male partner sterilization –vasectomy– or total sexual abstinence).
5. Mentally competent, able to understand and give written informed
consent prior to study entry.
6. Compliant to undergo all visits and procedures scheduled in the study, including recording of pain assessments on the electronic diary (e-Diary) as required by protocol. After surgery, patients will be eligible to progress with randomisation
ONLY if the following criterion is also met:
7. Pain of at least moderate intensity in the first 4 hours after the end of surgery (NRS score >= 4). |
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E.4 | Principal exclusion criteria |
1. Patients who are judged by the Investigator not to be suitable candidates for the study treatments and the RM based on their medical history, physical examination, concomitant medication (CM) and concurrent systemic diseases.
2. Clinically significant abnormalities in the vital signs (VS) and / or safety laboratory tests, as per investigator’s judgement.
3. History of allergy or hypersensitivity to the study treatments, RM or to any other NSAIDs, opioids and acetyl salicylic acid.
4. History of peptic ulcer, gastrointestinal disorders by NSAIDs or gastrointestinal bleeding or other active bleedings.
5. History of severe asthma.
6. Moderate to severe renal dysfunction, severe hepatic dysfunction or severe cardiac dysfunction.
7. Coagulation disorders.
8. History of, or current epilepsy.
9. Patients with Crohn’s disease or ulcerative colitis.
10. Patients using and not suitable for withdrawing analgesics within 12 hours before surgery (5 days prior to the surgery day in case of COX-2 inhibitors) and for 8 hours post-dose [analgesics other than those specified in the protocol (namely study treatments and RM)].
11. Patients using and not suitable for withdrawing alcohol, sedatives (e.g. benzodiazepines) and hypnotic agents within 12 hours before surgery and for 8 hours post-dose.
12. Chronic opioid treatment (major opioids and tramadol).
13. Patients using and not suitable for withdrawing the following prohibited medications, within 48 hours or 5 half-lives (whichever the longer) prior to the start of surgery and for 24 hours post-dose:
- Anticoagulants, thrombolytic and antiplatelet agents
- Corticosteroids (with the exception of inhalers or topical agents);
- Monoamine oxidase (MAO) inhibitors (a minimum of 14 days must elapse prior to the start of surgery);
- Antiepileptics;
- Antipsychotics;
- Serotonin reuptake inhibitors and tricyclic antidepressants;
- Lithium;
- Methotrexate;
- Antibacterial sulfonamides.
14. Participation in other clinical studies in the previous 4 weeks.
15. History of drug or alcohol abuse. For the purpose of the study, alcohol abuse is defined as regularly intake of more than 4 units of alcohol per day (1 unit corresponds approximately to 125 ml wine, 200 ml beer, 25 ml spirit).
16. History of any illness or condition that, in the opinion of the Investigator might pose a risk to the patient or confound the efficacy and safety results of the study.
17. Pregnant and breastfeeding women. NOTE: a pregnancy test will be performed to all women of childbearing potential at Screening and another one on the day of surgery prior to randomisation.
After surgery, patients will not be eligible to progress with randomisation if the following criterion is also met:
18. Surgical complication that, in the opinion of the Investigator, advises against their inclusion in the study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Total pain relief (TOTPAR), calculated as the weighted sum of the
PAR scores (measured according to a 5-point VRS from 0=no relief to
4=complete relief) over 6 hours post-dose (TOTPAR6)
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Efficay Endpoints:
- Mean PAR scores over the 8-hour post-dose period.
- TOTPAR over 4 and 8 hours post-dose (TOTPAR4, TOTPAR8).
- Percentage of maximum TOTPAR (% max TOTPAR) over 4, 6 and 8-hours post-dose.
- Percentage of patients achieving at least 50% of maximum TOTPAR over 4, 6 and 8 hours post-dose.
- Mean Pain Intensity (PI) scores (values obtained from the 11-point NRS) at each pre-specified time point over the 8-hour post-dose period.
- Percentage of patients who achieved at least 30% of PI reduction versus baseline at each pre-specified time point over the 8-hour postdose period.
- Sum of Pain Intensity Differences (SPID), calculated as the weighted sum of the pain intensity difference (PID) over 4, 6 and 8 hours postdose (SPID4, SPID6, SPID8).
- Percentage of maximum SPID (% max SPID) over 4, 6 and 8 hours post-dose.
- Time to FPPAR (time to onset of analgesia).
- Time to confirmed FPPAR (time to onset of analgesia) - i.e. time to FPPAR if confirmed by experiencing MPAR
- Percentage of patients who achieved confirmed FPPAR within 30 minutes, 1 hour and 2 hours.
- Time to MPAR.
- Percentage of patients who achieved MPAR within 30 minutes, 1 hour and 2 hours.
- PGE of the study medication (measured according to a five-point VRS from 1 = poor to 5 = excellent), at 8 hours post-dose or whenever the patient uses RM.
- Time to RM: Time elapsed between treatment administration and first intake of RM.
- Percentage of patients who required RM within the first 4, 6 or 8 hours post-dose.
Safety endpoints:
a) Incidence, intensity (severity), seriousness and treatment-causality of treatment-emergent AEs
b)Frequency of clinically significant changes in physical examination, and VS, post-dose versus baseline.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Please refer to Secondary end point section. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 3 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 19 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 0 |
E.8.9.1 | In the Member State concerned months | 8 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |