Drug Details Test Product
Generic Name: Tapentadol HCl
Strength: 45 mg : one spray (22.5 mg/100µL) in each nostril
22.5 mg : one spray (22.5 mg/100µL) in single nostril
Formulation: Nasal spray
Manufactured by/for: Torrent Pharmaceuticals Ltd., India
Study center: DY Patil University School of Medicine Healthcare D-wing, Sector-5,Nerul, Navi Mumbai – 400706
Introduction and background: Tapentadol is a centrally acting synthetic analgesic. It is a mu-opioid receptor (µOR) agonist and a norepinephrine reuptake inhibitor (NRI). Tapentadol nasal spray is already approved by Indian regulatory agency, CDSCO for treatment of moderated to severe post-operative pain in hospital admitted patients undergoing any major joint or spine surgeries
Centrally acting tapentadol delivered intranasally offers direct nasal-brain connect that regulates or modulates central sensitization to offer quick onset of action while pre-empting the complications associated as frequent breakthrough pain requiring rescue medication.
Study objective: To evaluate efficacy and safety of tapentadol nasal spray in comparison to Tramadol /Acetaminophen in Post-operative settings for the management of Moderate or Severe pain.
Study design: Post approval, Observational, longitudinal, case control, single centre, open label, clinical study.
Number of planned subjects: 110
Dosage and administration:
Eligible patients will be administered tapentadol nasal spray 22.5 mg (one spray in each nostril, 45 mg) every 6 hours with minimum of three dosages in a day.
Daily total dose greater than 315 mg on the first day of therapy and 270 mg on subsequent days is not recommended. Tramadol37.5/Acetaminophen325 will be administered as 1 to 2 tablets stat dose every 6 hours with a minimum of three dosages in a day
Eligibility Criteria: Participants meeting all of the following inclusion and none of the following exclusion criteria shall be included in the study.
Inclusion criteria:
1. Male or female subjects aged 18-65 years, both inclusive.
2. Clinical cases of Hip surgeries, Knee surgeries and major surgeries
3. After weaning of anesthesia post-surgery, patients having pain intensity score ≥ 4 on an 11-point (0 to 10) Numeric Pain Rating Scale (NPRS).
Exclusion criteria:
1. Patients with a history of hypersensitivity to tapentadol or any of the excipients.
2. Patients currently being treated with tricyclic antidepressants, selective serotonin reuptake inhibitors, selective noradrenaline reuptake inhibitors, anticonvulsants, neuroleptics, triptans, monoamine oxidase inhibitors, steroids or other drugs that has potential to reduce the seizure threshold within the past 4 weeks prior to screening.
3. Patients with history of impaired pulmonary function (significant respiratory depression, acute or severe bronchial asthma or hypercapnia in unmonitored settings or the absence of resuscitative equipment), severe renal or hepatic impairment, suspected paralytic ileus or head injury.
4. Patient having history of clinically significant medical illness in past 3 months, which may compromise the patients’ safety or study outcome.
5. Pregnant or lactating women.
6. In the opinion of the Investigator, patient is either unable to cooperate or unlikely to adhere with any study procedures.
7. Patients who have participated in any other investigational drug trial within the past four weeks prior to screening.
Study schedule:
Screening phase : Day -7 to Day -1 for cases of Hip surgeries, Knee surgeries and major
surgeries requiring General or Spinal anesthesia Enrolment Day: Day 0*
Treatment phase & end of study: Treatment with TNS or TRAM/APAP in either arm shall be initiated in post –operative settings at 48 to 72 h after Major surgery with weaning off the anesthesia for duration of 5 days.
End of study assessments will be performed on the day of study drug discontinuation.
*After weaning of anaesthesia post-surgery, tapentadol nasal spray or TRAM/APAP will be administered to patients with NPRS ≥ 4.
Note: pain intensity based on NPRS: 0= none, 1-3=mild, 4-6=moderate, 7-10= severe
Outcome measures:
Primary Endpoints: Numeric Pain Rating Score change at Day 5
Responder rate (>/=50% drop in NRS) at Day 5
Secondary Endpoints: Patient global assessment at 24 hours after treatment initiation and at the end of study
Clinical Global Impression: Efficacy Index after 24 hours after treatment initiation and at the end of study