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Analgesic Efficacy and Pharmacokinetic-pharmacodynamic Relationship of Intranasally Administered Sufentanil, Ketamine, and CT001 after Impacted Mandibular Third Molar Extraction

Analgesic Efficacy and Pharmacokinetic-pharmacodynamic Relationship of Intranasally Administered Sufentanil, Ketamine, and CT001 after Impacted Mandibular Third Molar Extraction

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-003258-21-DK
Enrollment
300
Registered
2021-11-04
Start date
2022-05-19
Completion date
Unknown
Last updated
2023-12-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy male or female participants scheduled for surgical removal of an impacted mandibular third molar, where bone removal is judged to be needed. MedDRA version: 21.0 Level: LLT Classification code 10050327 Term: Dental surgery NOS System Organ Class: 100000004865

Interventions

Sponsors

Cessatech A/S
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Healthy (The American Society of Anaesthesiologists’ Physical Classification System (ASA) I-II) male or female participants scheduled for surgical removal of an impacted mandibular third molar, where bone removal is judged to be needed. 2. Ability to understand spoken and written Danish 3. Written informed consent for participation in the study 4. Age: > 18 and )18.5 or below (=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Current or history of any clinically significant disease or disorder, which, in the opinion of the investigator, may put the potential subject at risk when participating in the study, or influence the potential subject’s ability to participate in the study or influence the study results. 2. Any clinically significant illness, medical/surgical procedure or trauma within 4 weeks of the administration of investigational product that is likely to introduce additional risk factors, jeopardize study integrity, or to interfere with the study assessments or procedure 3. History of increased bleeding tendency 4. Clinically significant mental illness 5. Opioid Risk Tool score of >3 6. Pain Catastrophizing Scale score, total points >30 7. Hospital Anxiety and Depression Scale (HADS), points =11 for anxiety or =11 points for depression 8. Daily intake of analgesics 9. Daily use of tobacco, including snuff 10. History of alcohol or drug abuse or use of illicit drugs or positive screen for drugs of abuse at screening or on admission to the Clinic prior to the administration of the investigational medicinal product. 11. Use of prescription drugs within 14 days (including low-dose acetylsalicylic acid [<150 mg/day]) or over-the-counter drugs 24 hours except paracetamol, which is allowed until 6 pm the day before surgery (intranasal medication 48 hours, ibuprofen max 400 mg/day) prior to the first dose of study medication, unless it is the opinion of the Investigator that the medication will not interfere with the study procedures or compromise the participant. 12. Any scheduled invasive treatment or medical/surgical procedure during the study period, except surgical removal of an impacted mandibular third molar 13. Abnormal nasal cavity/airway such as: a. evidence of previous significant nasal disorder including surgery, or dependence of inhaled drug b. current significant nasal congestion due to common cold c. minimum air flow during the nasal passages (evaluated at the investigator’s discretion) 14. History or presence of hypersensitivity or allergy to sufentanil, ketamine, NSAIDs or local anaesthetics, a history of anaphylactic or anaphylactoid reactions, or a history of other allergy that, in the opinion of the investigator, contraindicates the participation. 15. Positive COVID-19 test or clinical symptoms of COVID-19 (testing of potential participants will follow the health authorities’ guidelines and current local guidelines) 16. Is currently participating in or has participated in an interventional clinical trial with an investigational compound or device within 30 days of signing the informed consent for this trial 17. Previous randomisation to treatment in the present study 18. Blood or plasma donation within 4 weeks prior to the dosing procedure visit (Visit 3 [Day 0]). 19. Chronic pain as judged by the investigator

Design outcomes

Primary

MeasureTime frame
Main Objective: -To investigate the postoperative analgesic efficacy of intranasal sufentanil, intranasal ketamine and intranasal CT001, in adults following impacted mandibular third molar extraction. - To assess the relationship between analgesic efficacy and the plasma concentrations of intranasal sufentanil, intranasal ketamine and intranasal CT001.;Secondary Objective: -To investigate the dose-response relationship of intranasal sufentanil, intranasal ketamine and intranasal CT001. - To investigate the safety and tolerability of intranasal sufentanil, intranasal ketamine and intranasal CT001.;Primary end point(s): Efficacy: • The sum of pain intensity differences (SPID) at 55 min (corresponding to the first dose) derived from pain intensity scores measured by the Numerical Rating Scale (NRS) (0-10, 0= no pain, 10= worst possible pain). Concentration-effect relationship: • Estimates of population pharmacokinetic (PK) parameters required to adequately describe the time profiles of ketamine, the time profiles of sufentanil, and an estimate of the potential change in PK of ketamine in the presence of sufentanil, and an estimate of the potential change in PK of sufentanil in the presence of ketamine. Population PK modelling is data driven and therefore the exact PK parameters cannot be pre-specified, but will describe the absorption, distribution, elimination, and potential interaction of the two compounds. Estimates of population pharmacokinetic-pharmacodynamic (PK-PD) parameters required to adequately describe the relationship between the PK time profiles and the effect on pain intensity. Population PKPD modelling is data driven and therefore the exact PK-PD parameters cannot be pre-specified but will describe the impact of changes in concentrations on the pain intensity time profiles.;Timepoint(s) of evaluation of this end point: The sum of pain intensity differences (SPID) at 55 min (corresponding to the first dose) derived from pain intensity scores measured

Secondary

MeasureTime frame
Secondary end point(s): Key secondary variables: • Maximum Pain intensity difference (PIDmax) • “Time to meaningful relief” defined as the time when participants feel that the “pain relief becomes meaningful to them”. If meaningful relief is not achieved the participants’ onset time is censored with the maximum time of the study i.e. 180 min. • The sum of pain intensity differences (SPID) at 30 min derived from pain intensity scores at rest measured by the NRS (0-10) • Numbers of participants receiving rescue medication until 180 min post dose • Responder/non-responder at 30 minutes after first dose: Two different responder criteria will be used: - at least 30% reduction in pain intensity score (or mild pain (NRS 1-3)) compared to baseline - at least 50% reduction in pain intensity scores (or mild pain (NRS 1-3)) • The sum of pain intensity differences (SPID) at 90 min (corresponding to the first and second dose) derived from pain intensity scores measured on NRS 0-10 Other secondary variables: • “Time to first perceptible pain relief” defined as the time of the administration of the first dose to the time when participants “first feel any pain relief”. If first perceptible relief is not achieved; the participants’ onset time will be censored with the maximum time of the study i.e. 180 min. • Time to rescue medication • Mean pain intensity difference (PID) from baseline at rest at measurement time points (5, 10, 15, 20, 30, 40, 55, 65, 70, 75, 90, 105, 120, 140, 160, and 180 min post dose) • Mean pain intensity difference (PID) from baseline on jaw movement at measurement time points (16, 31, 56, 91, 121, 161, 181 min post dose) • Ramsay sedation score (1= agitated, anxious, restless, 6= unarousable) (time points baseline, 4, 9, 14, 19, 29, 39, 54, 64, 69, 74, 89, 104, 119, 139, 159, and 179 min post dose) - Median time to a request for rescue medication;Timepoint(s) of evaluation of this end point: See E.5.2

Countries

Denmark

Contacts

Public ContactProject manager

Cessatech A/S

benedikte.bandak@cessatech.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026