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Postoperative Dental PainPhase 3NCT05485805

A Study to Learn How Well a Single Dose of the Study Treatment Naproxen Sodium and Caffeine Combined in One Tablet (Fixed-dose Combination) Works to Relieve Pain After Dental Surgeries Compared to the Single Ingredients and to Placebo

A Phase 3 study testing Naproxen sodium and caffeine (BAY2880376), Naproxen sodium (Aleve) and Caffeine in people with Postoperative Dental Pain, run by Bayer 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

Researchers are looking for a better way to relieve pain in people, such as after dental surgery. Participants in this study, have had 3 or 4 third molars (cheek teeth) removed and subsequently have moderate to severe tooth pain. Read more about this study

Who is it for?
Ages 16 years and olderHealthy volunteers can take part
Conditions the study is for
Postoperative Dental Pain
What is being tested?
Naproxen sodium and caffeine (BAY2880376), Naproxen sodium (Aleve) and Caffeine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
541 participants
Where
1 siteUnited States
Study dates
21 Sep 2022to 29 Jan 2024
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 16 years and older
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Healthy, ambulatory, male or female volunteers 16 years of age or older;
  • Body mass index (BMI) 18.5 to 35.0 kg/m^2 inclusive as measured by the National Institutes of Health (NIH) BMI Calculator;
  • Participants will undergo surgical extraction of three or four third molars, two of which must be mandibular molars. Maxillary third molars may be removed regardless of impaction level. The mandibular extractions must have a trauma rating of mild or moderate and meet one of the following scenarios: two full bony impactions; two partial bony impactions; one full bony impaction in combination with one partial bony impaction. Supernumerary teeth present may also be removed at the discretion of the oral surgeon;
  • Have not taken any form of medication, nutritional supplements with analgesic properties (e.g. gamma-Aminobutyric acid [GABA], turmeric) or herbal supplements (i.e., St. John's Wort) within 5 days of admission (except for oral contraceptives, prophylactic antibiotics, multivitamin supplements, or other routine medications to treat benign conditions (such as antibiotics to treat acne), and agree not to take any medication (other than that provided to them) throughout the study;
  • Use of only short-acting local anesthetic (e.g., mepivacaine or lidocaine) preoperatively, with or without a vasoconstrictor and nitrous oxide at the discretion of the Investigator;
  • Have moderate to severe postoperative pain on the Categorical Pain Intensity Scale (a score of at least 2 on a 4 point scale) and a score of ≥ 5 on the 0-10 pain intensity Numerical Rating Scale (NRS) within 4.5 hours post-surgery.

Who cannot join

  • History of hypersensitivity to naproxen sodium, caffeine, ibuprofen, nonsteroidal anti-inflammatory drug (NSAIDS), aspirin, similar pharmacological agents, local anesthetics, rescue medication or components of the investigational products;
  • Evidence or history of clinically significant (in the judgment of the investigator) hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular (including hypertension and cardiac arrhythmia), hepatic, psychiatric, neurologic diseases, or malignancies within the last 5 years;
  • Participants with the following medical conditions may be eligible at the discretion of the investigator: attention deficit hyperactivity disorder (ADHD) on a stable dose regimen of methylphenidate/(dextro) amphetamine for at least 6 months; participants with hypothyroidism on a stable dose of synthetic thyroid hormone for at least 6 months;
  • Have received any form of treatment in the form of medication for depression in the past 6 months or any form of psychotropic agent (including selective serotonin uptake inhibitors [SSRI] but excluding ADHD medications described above) within the last 6 months;
  • Relevant concomitant disease such as asthma (exercise induced asthma is permitted);
  • Current or past history of gastrointestinal ulceration, gastrointestinal bleeding or other bleeding disorder(s);
Show all 13Show fewer
  • Acute illness or active local infection prior to surgery that can interfere with the conduct of the study in the judgment of the investigator;
  • Use of any over-the-counter (OTC) or prescription medications with which the administration of naproxen, acetaminophen, ibuprofen, any other NSAID, (e.g., tramadol) or if a medication is contraindicated;
  • Use of any medications within 5 days of surgery until discharge from the study site (except oral contraceptives, prophylactic antibiotics, synthetic thyroid hormones, methylphenidate or medications to treat benign conditions such as antibiotics to treat acne);
  • Use of caffeine within 2 days prior to the study;
  • Habits of high consumption of caffeine (>400 mg/day equivalent to about 3-4 cups of coffee per day);
  • Habituation to analgesic drugs including opioids (i.e., routine use of oral analgesics 5 or more times per week for greater than 3 weeks within the past 2 years);
  • Surgeon's trauma rating of severe following surgery.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • JBR Clinical Research

    Salt Lake City, Utah, 84107

Other trials in United States

About this study

Official title: A Randomized, Double-Blind, Single-Dose, Parallel, Placebo-Controlled Pivotal Trial to Confirm the Efficacy of a Fixed Dose Combination Tablet of Naproxen Sodium and Caffeine to Effectively Alleviate Postsurgical Dental Pain

Researchers are looking for a better way to relieve pain in people, such as after dental surgery.

Participants in this study, have had 3 or 4 third molars (cheek teeth) removed and subsequently have moderate to severe tooth pain.

Read more

The study treatment naproxen sodium suppresses inflammatory pain by reducing inflammation.

In the US, naproxen has been marketed since 1976, and naproxen sodium has been approved for over-the-counter (OTC) use since 1994 for the temporary relief of minor aches and pains. Caffeine, which is generally consumed as coffee, tea, or cocoa, has been shown to enhance the effect of various painkillers, and therefore is accepted as an additive.

The main purpose of this study is to learn how well a fixed-dose combination of naproxen sodium and caffeine relieves pain compared to each single ingredient as well as to placebo in participants after molar removal.

A placebo is a treatment that looks like a medicine but does not have any medicine in it.

To answer this, the researchers will compare the amount of pain decrease over 8 hours in participants who received a single dose of either:

  • 1 fixed-dose tablet of naproxen sodium/caffeine
  • 2 fixed-dose tablets of naproxen sodium/caffeine
  • naproxen sodium only
  • caffeine only
  • or placebo The study participants will be randomly (by chance) assigned to one of the five treatment groups. They will take a single dose of two tablets by mouth within 4.5 hours after the surgery. If there is no pain relief within 2 hours after intake, other painkillers may be given.
Being tested
Naproxen sodium and caffeine (BAY2880376), Naproxen sodium (Aleve), Caffeine, Placebo
Keywords
Dental pain
Medical subject headings
Toothache

What participants receive

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

  • Naproxen sodium and caffeine (BAY2880376)Drug

    Tablet, oral use, single dose

  • Naproxen sodium (Aleve)Drug

    Tablet, oral use, single dose

  • CaffeineDrug

    Tablet, oral use, single dose

  • PlaceboDrug

    Tablet, oral use, single dose

Study groups in NCT05485805
Study groupRoleWhat they receive
Naproxen sodium/caffeine - Dose 1ExperimentalParticipants will receive a single dose of one tablet of naproxen sodium/caffeine plus one tablet of placebo after extraction of third molars.
Receives: Drug: Naproxen sodium and caffeine (BAY2880376)
Naproxen sodium/caffeine - Dose 2ExperimentalParticipants will receive a single dose of two tablets of naproxen sodium/caffeine after extraction of third molars.
Receives: Drug: Naproxen sodium and caffeine (BAY2880376)
Naproxen sodiumExperimentalParticipants will receive a single dose of one tablet of naproxen sodium plus one tablet of placebo after extraction of third molars.
Receives: Drug: Naproxen sodium (Aleve)
CaffeineExperimentalParticipants will receive a single dose of two tablets of caffeine after extraction of third molars.
Receives: Drug: Caffeine
PlaceboPlacebo comparatorParticipants will receive a single dose of two tablets of matching placebo after extraction of third molars.
Receives: Drug: Placebo

What is being measured

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

  1. Sum of Pain Intensity Difference (SPID) Over 8 Hours Post-dose

    Pain intensity scale is the Numerical Rating Scale measured from 0 to 10, where 0 indicates no pain and 10 means the wors pain imaginable.

    Pain intensity Difference (PID) is calculated by subtracting the pain intensity at different time points in the post-dose time point from the pain intensity at baseline.

    The summed pain intensity difference (SPID) is to be calculated by multiplying the PID score at each post dose time point by the duration (in hours) since the preceding time point and then summing the values over the relevant time period. For SPID (0-8), eight PIDs are summed up, which is minimally 0, if there is no pain relief or maximally 80, if there is very strong pain and significant pain relief.

    Measured: Up to 8 hours post-dose

Secondary outcomes (15)
  1. Sum of Pain Intensity Differences From 0 to 2, 4, 6, 12 and 24 Hours Post-dose

    Pain intensity scale is the Numerical Rating Scale measured from 0 to 10, where 0 indicates no pain and 10 means the wors pain imaginable.

    Pain intensity Difference (PID) is calculated by subtracting the pain intensity at different time points in the post-dose time point from the pain intensity at baseline.

    The summed pain intensity difference (SPID) is to be calculated by multiplying the PID score at each post dose time point by the duration (in hours) since the preceding time point and then summing the values over the relevant time period. For SPID(0-i), i PIDs are summed up, which minimally is 0, if there is no pain relief or maximally i*10, if there is very strong pain and significant pain relief.

    Measured: from 0 to 2, 4, 6, 12 and 24 hours post-dose

  2. Total Pain Relief (TOTPAR) From 0 to 2, 4, 6, 8, 12 and 24 Hours Post-dose

    Total Pain Relief (TOTPAR) is a cumulative measure that evaluates the overall pain relief over a specific time frame from 0-2,0-4,0-6,0-8,0-12 and 0-24 following drug administration. It is calculated by multiplying the pain relief score from the categorical pain relief scale at each time post-dose time by multiplying the duration (in hours) since the preceding time point and then adding these values. Categorical Pain Relief Scale measure the degree of pain relief using a scale from 0 to 4, in which 0 is no relief, 1 a little relief, 2 some relief, 3 a lot of relief and 4 complete relief. Higher values of TOTPAR indicates better pain relief and suggest that the investigational product provided consistence and meaningful pain relief over the period. Low TOTPAR values indicates minimal pain relief or short-lasting efficacy.

    Measured: up to 24 hours post-dose

  3. Time to First Use of Rescue Medication

    Measured: Up to 24 hours post-dose

  4. The Cumulative Proportion of Participants Taking Rescue Medication Over the 24 Hour Period

    Measured: Up to 24 hours post-dose

  5. Time to First Perceptible Relief Measured by a Stopwatch

    Measured: Up to 24 hours post-dose

  6. Time to Meaningful Relief Measured by a Stopwatch

    meaningful relief is the point when the participant perceives their pain as significant and meaningful to them using the double-stopwatched method that allows to differentiate between the onset of the analgesic effect (first perceptible pain relief) and the onset of meaningful pain relief

    Measured: Up to 24 hours post-dose

  7. Time to First Perceptible Relief Confirmed by Meaningful Relief Defined as the Time to Perceptible Pain Relief

    Measured: Up to 24 hours post-dose

  8. Pain Intensity Difference (PID)

    Pain Intensity Difference (PID) is the change of pain intensity at a specific time point compared to baseline using the Numerical Rating Scale from 0 to 10. Value of 0 score means no pain and 10 score result means the worst possible pain. For each post-dose time point, pain intensity differences will be derived by subtracting the pain intensity at the post-dose time point from the baseline intensity score. Positive PID values indicate pain relief (reduction in pain intensity), while negative or small PID values suggest little or no reduction in pain intensity

    Measured: up to 24 hours post-dose

  9. Pain Relief Score

    Pain Relief Score (PRS): 0 = No Relief; 1 = A Little Relief; 2 = Some Relief; 3 = A Lot of Relief; 4 = Complete Relief.

    Measured: Up to 24 hours post-dose

  10. Peak Pain Intensity Difference (PID)

    The Peak Pain Intensity (peak PID) refers to the maximum change in pain intensity from baseline observed at any post-dose time point using the Numerical Rating Scale from 0 to 10. Value of 0 score means no pain and 10 score result means the worst possible pain. Participants record their pain intensity assessment in the time frame points and the highest value is identified as the Peak Pain Intensity. A high peak pain intensuty (higher value on NRS) indicates severe pain and a less effective analgesic response, and a lower value signifies better pain control and a more effective response.

    Measured: Up to 24 hours post-dose

  11. Number of Participants With Certain Peak Pain Relief Score

    Number of participants with pain relief score 4, 3, 2, 1. The Peak Pain Relief Score refers to the highest level of pain relief a participant reported at any time point during the study period. It provides an overview of the maximum effectiveness of the treatment at any given point during the observation period using the Categorical Pain Relief Scale which measure the degree of pain relief using a scale from 0 to 4, in which 0 is no relief, 1 a little relief, 2 some relief, 3 a lot of relief and 4 complete relief. A high socre closer indicates significant pain relief and reflects the effectiveness of the analgesic treatment. A score closer to 0 indicates little to no pain relief and suggests limited treatment efficacy.

    Measured: Up to 24 hours post-dose

  12. Cumulative Percent of Participants With 'at Least a 2-point PID' Over Time

    Measured: Up to 24 hours post-dose

  13. Global Assessment of Pain Relief of the Investigational Product

    Number of participants with overall rating poor, fair, good, very good, excellent 24 hour post-dose

    Measured: 24 hours post-dose

  14. Number of Participants With Adverse Events

    Number of participants with at least one treatment emergent adverse event

    Measured: Up to 5 days post-dose

  15. Number of Participants With Significant Changes in Vital Signs Since Baseline

    Measured: Up to 5 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 posted3 Aug 2022
  2. Study start21 Sep 2022
  3. Primary completion25 Jan 2024
  4. Study completion29 Jan 2024

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
541 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05485805
Sponsor's protocol ID
22093
Other IDs
2022-003274-22
Status last verified
Mar 2025
First submitted
28 Jul 2022
Last updated
25 Mar 2025
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Availability of this study's data will later be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal.

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Naproxen sodium and caffeine (BAY2880376), Naproxen sodium (Aleve) and Caffeine in people with Postoperative Dental Pain, run by Bayer 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 6 inclusion and 13 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 25 Mar 2025. 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. Some participants in this study may receive a placebo. 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 25 Mar 2025). 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?

Sum of Pain Intensity Difference (SPID) Over 8 Hours Post-dose (time frame: Up to 8 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 25 Mar 2025; AzTrials last refreshed its copy on 26 Oct 2026.

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