Phase 2
N=60
Intrathecal Paracetamol Before Spinal Anaesthesia With Chloroprocaine HCl 1% for Short Knee Procedures
Pain, Postoperative
Bottom Line
View on ClinicalTrials.gov: NCT03428230 ↗Enrolled (actual)
60
Serious AEs
0.0%
Results posted
Jun 2021
Primary outcome: Primary: Pain Intensity at Rest Evaluated Using a 0-100 mm VAS — 9.6; 16.9; 18.4; 8.1 score on a scale
Study Design & Population
- Study type
- Interventional
- Phase
- Phase 2
- Interventions
- 30 mg Paracetamol 3% (1 mL) (Drug); 60 mg Paracetamol 3% (2 mL) (Drug); 90 mg Paracetamol 3% (3 mL) (Drug); Placebo, 0.9% saline solution (Drug); NIMP: Chloroprocaine HCl 1% (10 mg/mL), solution for injection (Drug)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- Sintetica SA
- Primary completion
- Oct 2019
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Pain Intensity at Rest Evaluated Using a 0-100 mm VAS |
9.6; 16.9; 18.4; 8.1; 0.1; 0.1 | — |
| SECONDARY Pain at Rest AUCt1-t2 |
13; 14.8; 26.4; 4.4; 34.6; 26 | — |
| SECONDARY Pain at Rest AUClast |
34; 24.7; 42; 15.7 | — |
| SECONDARY Time to First Postoperative Analgesia (Level 1 or 2) |
5; 3; 7; 0; 6; 5 | — |
| SECONDARY Partecipants to Received Level 1 Analgesia |
6; 5; 7; 1 | — |
| SECONDARY Partecipants Received Level 2 Analgesia |
2; 0; 4; 0 | — |
| SECONDARY Total Number of Partecipants Receiving Analgesic 1 |
6; 5; 7; 1 | — |
| SECONDARY Total Number of Partecipants Receiving Analgesic 2 |
2; 0; 4; 0 | — |
| SECONDARY Percentage of Patients Requiring Analgesia in the First 2 h After Surgery End |
5; 3; 7; 0 | — |
| SECONDARY Percentage of Patients Requiring Analgesia in the First 4 h After Surgery End |
6; 5; 7; 1 | — |
| SECONDARY Percentage of Patients Requiring Analgesia From Surgery End Until Eligibility for Discharge |
6; 5; 7; 1 | — |
| SECONDARY Percentage of Patients Requiring Level 1 Analgesia From Surgery End Until Eligibility for Discharge |
6; 5; 7; 1 | — |
| SECONDARY Percentage of Patients Requiring Level 2 Analgesia From Surgery End Until Eligibility for Discharge |
2; 0; 4; 0 | — |
| SECONDARY Percentage of Patients Requiring Supplementary Analgesia, Other Than the Planned Level 1 or 2 Analgesia |
6; 5; 7; 1; 2; 0 | — |
| SECONDARY Percentage of Patients Requiring Rescue Anaesthesia |
14; 15; 15; 14 | — |
| SECONDARY Time to Onset of Spinal Block (i.e. Time to Readiness for Surgery) |
5; 5; 2; 5 | — |
| SECONDARY Maximum Sensory Block |
0; 0; 0; 0; 1; 0 | — |
| SECONDARY Time to Sensory Block |
10; 10; 10; 10 | — |
| SECONDARY Time to Regression of Spinal Block |
100; 100; 90; 95 | — |
| SECONDARY Time to Ambulation |
139; 115; 125; 125 | — |
| SECONDARY Time to First Urine |
155; 140; 145; 150 | — |
| SECONDARY Time to Eligibility for Discharge |
170; 165; 170; 168 | — |
Summary
This is a phase II, single centre, randomised, parallel-group, double-blind, three doses, placebo-controlled, exploratory efficacy and safety study. The objective of this study is to investigate the efficacy and safety of a single intrathecal injection of Paracetamol 3% (30 mg/mL) administered at 3 doses to 3 active treatment groups, as compared to placebo, for post-operative analgesia in knee procedures up to 40 min duration performed under spinal anaesthesia with Chloroprocaine HCl 1%.
Eligibility Criteria
Inclusion Criteria
- Informed consent: signed written informed consent before inclusion in the study
- Sex, age and surgery: male/female patients, 18-80 years old (inclusive), scheduled for short duration (up to 40 min) knee procedures
- Body Mass Index (BMI): 18 - 32 kg/m2 inclusive
- ASA physical status: I-III
- Full comprehension: ability to comprehend the full nature and purpose of the study, including possible risks and side effects; ability to co-operate with the investigator and to comply with the requirements of the entire study.
Exclusion Criteria
- Physical findings: clinically significant abnormal physical findings which could interfere with the objectives of the study. Contraindications to spinal anaesthesia. History of neuromuscular diseases to the lower extremities
- ASA physical status: IV-V
- Further anaesthesia: patients expected to require further anaesthesia
- Allergy: ascertained or presumptive hypersensitivity to the active principles (paracetamol and/or ester type anaesthetics) and/or formulations' ingredients or related drugs, non-steroidal anti-inflammatory drugs and/or opioid derivatives; history of anaphylaxis to drugs or allergic reactions in general, which the investigator considers could affect the outcome of the study
- Chronic pain syndromes: patients with chronic pain syndromes taking opioids, anticonvulsant agents or chronic analgesic therapy
- Pain assessment: patients anticipated to be unable to make a reliable self-report of pain intensity
- Diseases: significant history of renal, hepatic, gastrointestinal, cardiovascular, respiratory, skin, haematological, endocrine or neurological diseases that may interfere with the aim of the study; ascertained psychiatric and neurological diseases, sepsis, blood coagulation disorders, severe cardiopulmonary disease, thyroid disease, diabetes, other neuropathies, history or evidence of heart failure. History of severe head trauma that required hospitalisation, intracranial surgery or stroke within the previous 30 days, or any history of intracerebral arteriovenous malformation, cerebral aneurism or CNS mass lesion
- Medications: medication known to interfere with the extent of spinal blocks for 2 weeks before the start of the study. Paracetamol formulations, other than the investigational product, for 2 weeks before the start of the study and during the study. Hormonal contraceptives for females are allowed. Anti-hypotensive, anti-bradycardia (e.g. ephedrine, atropine, Ringer's solution), anti-haemetic and anti-nausea medications will be allowed
- Investigative drug studies: participation in the evaluation of any investigational product for 3 months before this study. The 3-month interval is calculated as the time between the first calendar day of the month that follows the last visit of the previous study and the first day of the present study
- Drug, alcohol: history of drug or alcohol abuse according to the Investigator's opinion
- Pregnancy and lactation: positive pregnancy test at screening (if applicable), pregnant or lactating women [The pregnancy test will be performed to all fertile women and to all women up to 55 years old, if not in proven menopause (available laboratory test confirming menopause or surgically sterilised)]
Data sourced from ClinicalTrials.gov (NCT03428230). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.