E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
The study objective is to evaluate the safety and clinical benefit of NexoBrid in hospitalized children (0-18 years) with deep partial and/or full thickness thermal burns of 1-30% TBSA and to compare NexoBrid to standard of care (SOC). |
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E.1.1.1 | Medical condition in easily understood language |
Dead tissue of a burn wound has to be removed to promote healing of the wound. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Injuries, poisonings, and occupational diseases [C21] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 18.0 |
E.1.2 | Level | HLT |
E.1.2 | Classification code | 10043418 |
E.1.2 | Term | Thermal burns |
E.1.2 | System Organ Class | 100000004863 |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The main objective of the trial is:
-To demonstrate enzymatic eschar removal efficacy of NexoBrid by providing earlier, complete eschar removal
-To demonstrate enzymatic eschar removal efficacy of NexoBrid by reducing patients’ surgical burden and resulting in non inferior final outcomes of cosmesis and function as compared to SOC.
-To assess the safety of NexoBrid compared to SOC.
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E.2.2 | Secondary objectives of the trial |
The following secondary objectives are assessed compared between SOC and NexoBrid:
1.Reduction in surgical need- Incidence of surgical excision performed for eschar removal. This Endpoint (EP) supplements the primary EP by further assessing NexoBrid’s impact on the reduction in surgical needs.
2.Incidence of autograft performed in deep partial thickness wounds
3.Percent area of deep partial thickness wounds autografted
4.Incidence of wound closure
5.Time to reach complete wound closure assessed in days, starting from Randomization date.
6.Cosmesis assessment using MVSS
7.Long term Quality of Life will be measured using EQ5D at wk 12 and mths 6, 12, 18 and 24 following the confirmatory wound closure visit.
8.Long term functionality evaluation of the extremities (using the ‘Lower Extremity Functional Scale’ and 'QuickDASH' questionnaires and 'Range Of Motion' measurements) will be evaluated at wk 12 and mths 6, 12, 18 and 24 following the confirmatory wound closure visit. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
8.1.1 Inclusion Criteria- Patient level
1. Stage 1: Males and females between 4 years to 18 years of age,
Stage 2 (upon approval of DSMB): Males and females between 0 years to 18 years of age,
2. Thermal burns caused by fire/flame, scalds or contact.
3. Patient total burns area should be between 1% to 30% TBSA (≥ 1% and ≤ 30% ; SPT, DPT and/or FT in depth),
4. Signed written informed consent by a legal guardian can be obtained within 60 hours of the burn injury.
8.1.2 Inclusion Criteria - Wound level
At least one wound (a continuous burn area which can be treated in one session; might include several anatomical areas) in a patient should meet all following criteria:
1. Wound that is ≥ 1% TBSA (not including face, perineal or genital),
2. Wound is composed of DPT and/or FT in depth. Superficial partial thickness areas may be included in the wound area only if cannot be separated from deeper areas (e.g. surrounded by or mixed with DPT areas) and might interfere with the treatment of the deeper areas,
3. Wound that is potentially intended for surgical eschar removal,
4. Wound’s blisters can be unroofed, as judged by the investigator.
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E.4 | Principal exclusion criteria |
1. Patients who are unable to follow study procedures and follow up period,
2. Patients with electrical or chemical burns,
3. Patient with a continuous burn area above 15% TBSA,
4. Patients with no DPT and/or FT burn area (only SPT wounds),
5. DPT and/or FT facial burn wounds from flame, flash, explosion >0.5% TBSA (scald and contact burns are allowed); study treatment of all facial burns is not allowed,
6. Study treatment of perineal and/or genital burns is not allowed; however, a patient with these wounds may be enrolled but the wounds may not be designated as target wounds,
7. Patient with circumferential anterior/posterior trunk fire/flame burns, >15% TBSA (Circumferential is defined as encircling ≥ 80% of the trunk circumference),
8. The following pre-enrolment dressings: a. Flammacerium, b. Silver Nitrate (AgNO3),
9. Patients with diagnosed infections as described in Section 13.2.5 of study protocol,
10. Any signs or history that may indicate smoke inhalation (e.g. flames in enclosed space, smoke and fumes on the patient and in mouth and nostrils, deep flame burns >0.5 %TBSA to the face, cough, hoarseness, stridor or breathing difficulty including tachypnea possibly related to smoke inhalation, etc.),
11. Patients with pre-enrolment wounds which are covered by eschar saturated with iodine or by SSD pseudoeschar (e.g. pseudoeschar as a result of SSD treatment),
12. Patients with pre-enrolment escharotomy,
13. Pregnant women (positive pregnancy test) or nursing mothers,
14. Poorly controlled diabetes mellitus (HbA1c>9%),
15. Known Cardio-pulmonary disease, oxygen-dependent pulmonary diseases, broncho-pneumonia, steroid dependent asthma or uncontrolled asthma),
16. Known conditions which interfere with circulation (peripheral vascular disease, edema, lymphedema, surgery to the regional lymph nodes, obesity),
17. Any known conditions that would preclude safe participation in the study or adding further risk to the basic acute burn trauma (such as immuno-compromising diseases, life threatening trauma, severe pre-existing coagulation disorder, pulmono-cardiovascular, liver or neoplastic disease),
17. ASA greater than 2 (see Appendix 13- ASA classification system in study protocol)
18. Chronic systemic steroid intake,
19. History of allergy and/or known sensitivity to pineapples, papaya, Bromelain or papain,
20. Current (within 12 months prior to screening) suicide attempt,
21. Enrollment in any investigational drug trial within 4 weeks prior to screening,
22. Current (within 12 months prior to screening) alcohol (daily consumption > 3 units for males and >2 units for females) or drug abuse ,
23. Prisoners and incarcerated
24. Patients who might depend on the clinical study site or investigator.
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E.5 End points |
E.5.1 | Primary end point(s) |
1. Earlier eschar removal (in days): Demonstrate superiority over SOC for eschar removal as measured by a survival analysis of incidence of complete eschar removal as a function of time. Eschar removal will be measured at the end of the debridement starting from randomization date.
2. Reduction in surgical needs: Demonstrate superiority over SOC in reduction in surgical need for excisional eschar removal as measured by an analysis of % wound area surgically excised for eschar removal (tangential/ minor/ avulsion/ Versajet and/or dermabrasion excision).
3. Cosmesis and Function: Demonstrate non-inferiority to SOC in quality of scars of burns (using POSAS) treated with NexoBrid, measured at 24 months from wound closure.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
1. Start of randomization
2. End of eschar removal
3. 24 months from wound closure.
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E.5.2 | Secondary end point(s) |
1. Reduction in surgical need- Incidence of surgical excision performed for eschar removal. This endpoint supplements the primary EP by further assessing NexoBrid’s impact on the reduction in surgical needs.
2. Incidence of autograft performed in deep partial thickness wounds only
3. % area of deep partial thickness wounds autografted
4. Incidence of wound closure
5. Time to reach complete wound closure assessed in days, starting from Randomization date
6. Cosmesis assessment using MVSS at 12 weeks and months, 6, 12, 18 and 24 following the confirmatory wound closure visit.
7. Long term Quality of Life will be measured using EQ5D at 12 weeks and months 6, 12, 18 and 24 following to the confirmatory wound closure visit.
8. Long term functionality evaluation of the extremities (using the ‘Lower Extremity Functional Scale’ and 'QuickDASH' questionnaires and 'Range Of Motion' measurements) will be evaluated at 12 weeks and months 6, 12, 18 and 24 months following to the confirmatory wound closure visit.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
-time until complete eschar removal has been achieved.
-end of the topical agent soaking period.
-Time to reach complete wound closure assessed in days, starting from Randomization date.
-3, 6, 9, 12, 18 and 24 months following to the confirmatory wound closure visit. |
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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 | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
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 | Yes |
E.6.13.1 | Other scope of the trial description |
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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) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
scar evaluation is blinded |
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E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Comparator arm is Standard of care |
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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
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 25 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Austria |
Belgium |
Bulgaria |
Czech Republic |
France |
Germany |
Israel |
Netherlands |
Romania |
Slovakia |
Spain |
Sweden |
United Kingdom |
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E.8.7 | Trial has a data monitoring committee | No |
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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 4 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |