E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Postoperative pain following mastectomy and reconstructive surgery due to breast cancer. |
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E.1.1.1 | Medical condition in easily understood language |
Pain following breast cancer surgery (removal of the breast with reconstruction). |
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E.1.1.2 | Therapeutic area | Analytical, Diagnostic and Therapeutic Techniques and Equipment [E] - Anesthesia and Analgesia [E03] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10026881 |
E.1.2 | Term | Mastectomy radical |
E.1.2 | System Organ Class | 100000004865 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10051042 |
E.1.2 | Term | Plastic surgery NOS |
E.1.2 | System Organ Class | 100000004865 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10006188 |
E.1.2 | Term | Breast cancer female NOS |
E.1.2 | System Organ Class | 100000004864 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
We wish to conduct a randomized, placebo controlled and double blind study, comparing the effect of the ultrasound-guided multiple-injection costotransverse block (MICB) vs. placebo. Our aim with this study is to investigate the efficacy of the MICB vs. placebo in patients undergoing unilateral mastectomy and primary reconstructive surgery due to breast cancer. Our hypothesis is, that the unilateral MICB will significantly reduce the opioid consumption during the first 24 postoperative hours and significantly reduce the Numerical Rating Scale pain score (0-10) and opioid related side effects.
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E.2.2 | Secondary objectives of the trial |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Scheduled for elective unilateral mastectomy and primary reconstructive surgery (UMPR) with subpectoral implant due to breast cancer
Age above/equal to 18 years at the date of inclusion
Have received thorough information, orally and in written, and signed the “Informed Consent” form on participation in the study.
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E.4 | Principal exclusion criteria |
Scheduled for elective UMPR surgery due to breast cancer combined with simultaneous contralateral major breast surgery (mastectomy, mastopexy and subpectoral breast reconstruction). Minor contralateral surgery (e.g. lipofilling) are accepted.
Scheduled free flap reconstructive surgery
Inability to cooperate
Inability to speak, read and understand Danish
Allergy to local anaesthetics or opioids
Daily intake of opioids, according to the investigators decision
Illegal drug and/or substance abuse, according to the investigators decision
Local infection at the site of injection or systemic infection
Difficult sonoanatomical visualisation of the target area necessary for the block execution
Substantial co-morbidity, ASA>3
Severe hypovolemia
Pregnant or breastfeeding |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary end point of this study is total morphine consumption in the first 24 postoperative hours. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Pain intensity (NRS 0-10/10) in the study period at T0 (arrival in the PACU), after 15 minutes, 30 minutes, 45 minutes and one hour. And pain intensity (NRS 0-10/10) in the intervals o [ arrival at the ward - 4 hrs. postop ] o ] 4 hrs. postop – 8 hrs. postop ] o ] 8 hrs. postop – 12 hrs. postop ] o ] 12 hrs. postop – 16 hrs. postop ] o ] 16 hrs. postop – 20 hrs. postop ] o ] 20 hrs. postop – 24 hrs. postop ]
Morphine consumption at 4, 8, 12, 16 and 20 postoperative hours.
Duration of block (time to first opioid).
Patient satisfaction with application of the block.
The degree of morphine-related side effects (PONV, itching, fatigue, etc.).
Time from operation to ambulation (bed to chair to walking)
Time to discharge (days).
Quality of Recovery – 15 score (QoR15).
The incidence of chronic pain 1 year after surgery |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
The research period is 14 days postoperative with interrim timepoints regarding block performance and acute postoperative pain. Chronic pain follow-up at 1 year. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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LVLS + 14 days.
LVLS + 1 year regarding chronic pain follow-up. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |