Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
This study aims to evaluate the additive effect of Amantadine to Pregabaline in the development of post-thoracotomy pain syndrome.
Lung cancer is still the most common cause of cancer-related deaths, and lung resection surgeries could be the primary therapeutic option. Hence, the number of thoracotomy procedures is progressively increasing, as well as the development of post-thoracotomy pain syndrome (PTPS).
Pregabalin is one of the drugs that can reduce the excitability of the dorsal horn neurons. It is a γ-aminobutyric acid analogue that binds to α2-δ subunits of the voltage-gated calcium channels in the central nervous system.
Amantadine (1-aminoadamantane) is NMDA receptor antagonists. NMDA receptors were found to have role in the development of central sensitization, acute opioid tolerance, and opioid induced hyperalgesia.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Amantadine group | Experimental | Two hours preoperative, patient will receive two capsules, one of them is Amantadine (Amantadine Hydrochloride) 100 mg and the other is Pregabalin (Lyrica) 75 mg and continued on both of them twice daily for 5 days postoperative. |
|
| Placebo group | Placebo Comparator | Two hours preoperative, the patient will receive two capsules, one of them is pregabalin 75 mg, and the other is a placebo capsule similar to the amantadine capsule and continued on both of them twice daily for 5 days postoperative. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Amantadine+ Pregabalin | Drug | Two hours preoperative, patient will receive two capsules, one of them is Amantadine (Amantadine Hydrochloride) 100 mg and the other is Pregabalin (Lyrica) 75 mg and continued on both of them twice daily for 5 days postoperative. |
| Measure | Description | Time Frame |
|---|---|---|
| Incidence of occurrence of post-thoracotomy pain syndrome | Incidence of occurrence of post-thoracotomy pain syndrome at 12 weeks through according to grading system for neuropathic pain (GSNP). GSNP is as follows: Grade 1 (unlikely), Grade 2 (possible), Grade 3 (probable), and Grade 4 (definite), the patients will be considered positive regarding incidence being in grade 3 or 4. | 12 weeks postoperatively |
| Measure | Description | Time Frame |
|---|---|---|
| Patient's Quality of life | Patient's Quality of life according to Flanagan Quality of Life Scale (QOLS) which is a 16-item (domain) questionnaire with each item scored from 1 to 7 points. Participants respond to the questions using a seven-point Likert scale, ranging from 1 ("completely dissatisfied") to 7 ("delighted"). The scale will be explained to the patients and the total score will be calculated and recorded at the preoperative assessment (baseline) and at postoperative weeks 2, 4, 8, and 12. |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Cairo University | Cairo | Cairo Governorate | 12613 | Egypt |
The data will be available upon a reasonable request from the corresponding author after the end of study for one year.
After the end of study for one year.
The data will be available upon a reasonable request from the corresponding author
Not provided
Not provided
| ID | Term |
|---|---|
| D000069583 | Pregabalin |
| ID | Term |
|---|---|
| D005680 | gamma-Aminobutyric Acid |
| D000613 | Aminobutyrates |
| D002087 | Butyrates |
| D000144 | Acids, Acyclic |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Pregabalin | Drug | Two hours preoperative, the patient will receive two capsules, one of them is pregabalin 75 mg, and the other is a placebo capsule similar to the amantadine capsule and continued on both of them twice daily for 5 days postoperative. |
|
| 12 weeks postoperatively |
| Patient's activity level | Postoperative Patient's activity level according to Barthel Activities of Daily Living scale (ADL). This scale comprises 10 basic daily activities (bowel, bladder, feeding, toilet, bathing, dressing, grooming, walking, stairs and transfer) with each item scored as 0 = need complete help, 1 = need some help or 2 = need no help | 12 weeks postoperatively |
| Total amount of morphine consumption | Rescue analgesia will be provided in the form of intravenous morphine 3 mg boluses if the patient indicates Visual Analogue Scale (VAS) ≥ 4. | 48 hours postoperatively |
| Total amount of fentanyl consumption | Rescue analgesia of fentanyl 1 μg/kg will be given if the mean arterial blood pressure or heart rate rises above 20% of baseline levels. | Intraoperatively |
| Patient Global Impression of Change (PGIC) | Patient Global Impression of Change (PGIC) reflects a patient's belief about the efficacy of treatment. PGIC is a 7-point scale depicting a patient's rating of overall improvement. 0 (very much worse" to 7 (very much improved). | 12 weeks postoperatively |
| Incidence of side effects of Pregabalin | Side effects of Pregabalin such as headaches, feeling sleepy, tired or dizzy, diarrhoea, mood changes, feeling sick, swollen hands, arms, legs and feet, blurred vision, difficulties with getting an erection, and weight gain - because pregabalin can cause you feel hungry, and memory problems will be recorded. | 12 weeks postoperatively |
| Incidence of side effects of Pregabalin | The side effects of Amantadine such as dry mouth, constipation, nausea, vomiting, decreased appetite, difficulty falling asleep or staying asleep, abnormal dreams, headache, confusion, drowsiness, tiredness, uncontrollable tightening of muscles, change from normal walking to falls, and a lace-like purple pattern on the skin. | 12 weeks postoperatively |
| D002264 |
| Carboxylic Acids |
| D009930 | Organic Chemicals |
| D000596 | Amino Acids |
| D000602 | Amino Acids, Peptides, and Proteins |