- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT02462577
Effect of Locally Administered Morphine and Bupivicaine on Acute and Chronic Postmastectomy Pain
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
Breast cancer is one of the most common cancer diagnoses in women and a significant cause of mortality and morbidity worldwide.Surgical treatment indicated in most patients. Persistent pain and sensory disturbances following surgery is a significant clinical problem with an average prevalence of 20-23.9%. Post-mastectomy chronic pain syndrome (PMPS) is defined as pain of neuropathic character located in the area of surgery and/or the ipsilateral arm, present at least 4 days per week, and with an average intensity of at least 3 on a numeric rating scale from 0 to 10. The pathological mechanisms may be related to patient characteristics, surgical technique and adjuvant therapy. Although the genesis of pain is multi-factorial, sectioning of the intercostobrachial nerve (a cutaneous branch of T1-2) is the nerve lesion diagnosed most often.
Uncontrolled acute postoperative pain is defined as an important risk factor for the development of chronic pain. Local anesthetics have been investigated in cancer breast patients through many routes; paravertebral blocks, thoracic epidurals, wound infiltration, topical lidocaine patch, and the topical application of EMLA( Eutectic Mixture of Local Anesthetics) cream on operation site. Most of above studies suggested a better outcome in terms of reduced postoperative pain and improved patient satisfaction.
Opioids exert a local analgesic effect is based on several observations: • Nociceptive afferent nerve fibers contain peripheral opioid receptors which are silent except in the presence of local inflammation. • Morphine and its metabolites are largely undetectable systemically when applied topically to skin ulcers, suggesting the analgesic effect is local • Peripheral opioid injections for local analgesia, such as intra-articular morphine after knee surgery, have been found to be effective in several trials. An effective topical opioid analgesic that could be applied to inflamed or open skin lesions would be a useful option for some patients where other options for pain relief have been exhausted.
Tipo di studio
Iscrizione (Effettivo)
Fase
- Fase 2
Contatti e Sedi
Luoghi di studio
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Assiut, Egitto, 171516
- Assiut University
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- female patients with cancer breast scheduled for modified radical mastectomy with axillary dissection
Exclusion Criteria:
- allergy to the study drugs
- significant cardiac, respiratory, renal or hepatic disease
- drug or alcohol abuse
- psychiatric illness that would interfere with perception and assessment of pain
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione incrociata
- Mascheramento: Doppio
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
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Comparatore attivo: local instillation of morphine 5 mg
5 ml plain bupivacaine 0.5% and 5 mg morphine .Study drugs will be diluted by saline 0.9% to 20 ml volume and irrigated onto the surgical field before skin closure and suction drain will be closed for 30 min after skin closure.
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comparison between different drug doses effects on pain
Altri nomi:
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Comparatore attivo: local instillation of morphine 10 mg
5 ml plain bupivacaine 0.5% and 10 mg morphine .Study drugs will be diluted by saline 0.9% to 20 ml volume and irrigated onto the surgical field before skin closure and suction drain will be closed for 30 min after skin closure.
|
comparison between different drug doses effects on pain
Altri nomi:
|
|
Comparatore attivo: local instillation of morphine 15 mg
5 ml plain bupivacaine 0.5% and 15 mg morphine .Study drugs will be diluted by saline 0.9% to 20 ml volume and irrigated onto the surgical field before skin closure and suction drain will be closed for 30 min after skin closure.
|
comparison between different drug doses effects on pain
Altri nomi:
|
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Comparatore placebo: local instillation of local anesthetics
5 ml plain bupivacaine 0.5% .Study drugs will be diluted by saline 0.9% to 20 ml volume and irrigated onto the surgical field before skin closure and suction drain will be closed for 30 min after skin closure.
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comparison between different drug doses effects on pain
Altri nomi:
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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changes in acute pain intensity from the baseline
Lasso di tempo: at 2,4,6,12,24,36 and 48 hour postoperatively
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Visual analogue pain scale score at rest (VAS-R) and during movement or ipsilateral arm abduction (VAS-M), will be assessed at the same points score ranging from 0 to 10 (zero = no pain and 10 = the worst pain imaginable).
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at 2,4,6,12,24,36 and 48 hour postoperatively
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Postoperative adverse effects
Lasso di tempo: 2,4,6,12,24,36 and 48 hour postoperatively.
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nausea, vomiting respiratory depression, itching and sedation
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2,4,6,12,24,36 and 48 hour postoperatively.
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The probability of developing chronic neuropathic pain
Lasso di tempo: after one month and after two months postoperatively
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postoperative examination in pain clinic using LANSS (Leeds Assessment of Neuropathic Symptoms and Signs) scale
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after one month and after two months postoperatively
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Collaboratori e investigatori
Sponsor
Investigatori
- Investigatore principale: Shereen M Mohamed, MD, Lecturer of anesthesia, ICU and pain management- South Egypt Cancer Institute- Assuit University
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 209
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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