| Primary | Number of Participants With No CSF Leak During and After Surgery | Participants who have no intra-operative CSF leak from dural repair after up to two applications during Valsalva maneuver (25 cm H2O for up to 5 - 10 seconds), or post-operative CSF leak within 30 (+3) days post-operatively. The Valsalva maneuver was performed by the anaesthesiologist to increase the intra-thoracic pressure (e.g., by increasing the positive end-expiratory pressure or by giving a large tidal volume and holding the inflating pressure) to approximately 25 cm H2O, constantly for up to 5 - 10 seconds to transiently elevate the intracranial pressure and test for any CSF leaks. The suture line was to be watertight after up to two product/control applications and Valsalva maneuvers. | Per-protocol analysis set (PPS): The PPS was defined as a subset of the FAS. Patients with any major deviation that may have impacted the primary efficacy parameter were excluded from the PPS. | Posted | | Count of Participants | | Participants | | Day 0 (Intra-operative) to Day 30 (+/-3 days) post-operative | | | | ID | Title | Description |
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| OG000 | Tisseel | Tisseel (FS VH S/D 500 s-apr), single use treatment, was administered intra-operatively with sutures during dural closure. Product was applied with cannula by dripping in a thin and continuous layer with a 5 mm overlap on each side of the sutured line, ensuring that all suture holes were covered. | | OG001 | DuraSeal | DuraSeal Dural Sealant, single use treatment, was administered intra-operatively with sutures during dural closure. The product was applied with the DuraSeal System Applicator by spraying a thin (1 - 2 mm) coating, ensuring that all suture holes were covered. |
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| | Group IDs | Group Description | Statistical Method | Statistical Comment | P-Value | P-Value Comment | Parameter Type | Parameter Value | Dispersion Type | Dispersion Value | Confidence Interval Sides | Confidence Interval % | CI Lower Limit | CI Upper Limit | CI Lower Limit Comment | CI Upper Limit Comment | Estimate Comment | Tested Non-Inferiority | Non-Inferiority Type | Non-Inferiority Comment | Other Analysis Description |
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| | Regression, Logistic | | | | Mean Difference (Net) | -9.29 | | | 2-Sided | 95 | -21.11 | 2.54 | | | Difference in Average Predicted Proportion (Tisseel - Duraseal) | | Non-Inferiority | To demonstrate non-inferiority (NI) of Tisseel to DuraSeal for the primary endpoint, the lower limit of the 95% CI (based on normal approximation) for the difference in average predicted proportions had to be greater than -10%. | |
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| Secondary | Number of Participants With no Intra-operative CSF Leaks Following Final Valsalva Maneuver | Assessment of whether the suture line was not watertight causing CSF leaks after up to two product/control applications and Valsalva maneuvers. | Per-protocol analysis set (PPS): The PPS was defined as a subset of the FAS. Patients with any major deviation that may have impacted the primary efficacy parameter were excluded from the PPS. | Posted | | Count of Participants | | Participants | | Day 0 (Intra-operative) | | | | ID | Title | Description |
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| OG000 | Tisseel | Tisseel (FS VH S/D 500 s-apr), single use treatment, was administered intra-operatively with sutures during dural closure. Product was applied with cannula by dripping in a thin and continuous layer with a 5 mm overlap on each side of the sutured line, ensuring that all suture holes were covered. | | OG001 | DuraSeal | DuraSeal Dural Sealant, single use treatment, was administered intra-operatively with sutures during dural closure. The product was applied with the DuraSeal System Applicator by spraying a thin (1 - 2 mm) coating, ensuring that all suture holes were covered. |
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| Secondary | Number of Participants With CSF Leaks Within 30 (+3) Days Post-operatively | Cerebrospinal fluid leak was defined as any overt flow, seepage, weeping, or sweating of CSF through the dura suture line, regardless of volume. All post-operative CSF leaks were primarily diagnosed based on a detailed history and physical examination, including neurological examination. Although not standard of care post-operatively, imaging tests such as computed tomography/magnetic resonance imaging (MRI) were considered if there was a high clinical suspicion of a CSF leak. | Per-protocol analysis set (PPS): The PPS was defined as a subset of the FAS. Patients with any major deviation that may have impacted the primary efficacy parameter were excluded from the PPS. | Posted | | Count of Participants | | Participants | | Day 0 (Intra-operative) to Day 30 (+/-3 days) post-operative | | | | ID | Title | Description |
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| OG000 | Tisseel | Tisseel (FS VH S/D 500 s-apr), single use treatment, was administered intra-operatively with sutures during dural closure. Product was applied with cannula by dripping in a thin and continuous layer with a 5 mm overlap on each side of the sutured line, ensuring that all suture holes were covered. | | OG001 | DuraSeal | DuraSeal Dural Sealant, single use treatment, was administered intra-operatively with sutures during dural closure. The product was applied with the DuraSeal System Applicator by spraying a thin (1 - 2 mm) coating, ensuring that all suture holes were covered. |
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| Secondary | Duration in Surgery (Minutes) | Patients undergoing elective cranial surgery for the treatment of a pathological condition (e.g., benign/malignant tumours, vascular malformations, or Chiari type 1 malformations) specifically located in the posterior fossa (PF) or supratentorial (ST) regions. | Per-protocol analysis set (PPS): The PPS was defined as a subset of the FAS. Patients with any major deviation that may have impacted the primary efficacy parameter were excluded from the PPS. | Posted | | Mean | Standard Deviation | Minutes | | Day 0 (intra-operatively) | | | | ID | Title | Description |
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| OG000 | Tisseel | Tisseel (FS VH S/D 500 s-apr), single use treatment, was administered intra-operatively with sutures during dural closure. Product was applied with cannula by dripping in a thin and continuous layer with a 5 mm overlap on each side of the sutured line, ensuring that all suture holes were covered. | | OG001 | DuraSeal | DuraSeal Dural Sealant, single use treatment, was administered intra-operatively with sutures during dural closure. The product was applied with the DuraSeal System Applicator by spraying a thin (1 - 2 mm) coating, ensuring that all suture holes were covered. |
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| Secondary | Time From Dural Closure (Application of IP) Until End of Surgery | Suture closure techniques include continuous simple, continuous locked, interrupted. | Per-protocol analysis set (PPS): The PPS was defined as a subset of the FAS. Patients with any major deviation that may have impacted the primary efficacy parameter were excluded from the PPS. | Posted | | Mean | Standard Deviation | Minutes | | Day 0 (Intra-operatively) | | | | ID | Title | Description |
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| OG000 | Tisseel | Tisseel (FS VH S/D 500 s-apr), single use treatment, was administered intra-operatively with sutures during dural closure. Product was applied with cannula by dripping in a thin and continuous layer with a 5 mm overlap on each side of the sutured line, ensuring that all suture holes were covered. | | OG001 | DuraSeal | DuraSeal Dural Sealant, single use treatment, was administered intra-operatively with sutures during dural closure. The product was applied with the DuraSeal System Applicator by spraying a thin (1 - 2 mm) coating, ensuring that all suture holes were covered. |
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| Secondary | Length of Stay in Hospital (Days). | Days in hospital calculation is Day 0 - Discharge. | Per-protocol analysis set (PPS): The PPS was defined as a subset of the FAS. Patients with any major deviation that may have impacted the primary efficacy parameter were excluded from the PPS. | Posted | | Mean | Standard Deviation | Days | | Day 0 to Day 60 (Study Completion) | | | | ID | Title | Description |
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| OG000 | Tisseel | Tisseel (FS VH S/D 500 s-apr), single use treatment, was administered intra-operatively with sutures during dural closure. Product was applied with cannula by dripping in a thin and continuous layer with a 5 mm overlap on each side of the sutured line, ensuring that all suture holes were covered. | | OG001 | DuraSeal | DuraSeal Dural Sealant, single use treatment, was administered intra-operatively with sutures during dural closure. The product was applied with the DuraSeal System Applicator by spraying a thin (1 - 2 mm) coating, ensuring that all suture holes were covered. |
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| Post-Hoc | Number of Surgical Site Infections (SSI) | Surgical site infections were evaluated by the surgeon or designated physician according to United States (US) National Healthcare Safety Network (NHSN) criteria as specified in the study protocol. | Safety analysis set (SAS): The SAS consisted of all patients who were treated with IP/Control. Patients were analyzed as treated. | Posted | | Number | | SSI | | Day 0 (Intra-operative) to Day 30 (+/-3 days) post-operative | | | | ID | Title | Description |
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| OG000 | Tisseel | Tisseel (FS VH S/D 500 s-apr), single use treatment, was administered intra-operatively with sutures during dural closure. Product was applied with cannula by dripping in a thin and continuous layer with a 5 mm overlap on each side of the sutured line, ensuring that all suture holes were covered. | | OG001 | DuraSeal | DuraSeal Dural Sealant, single use treatment, was administered intra-operatively with sutures during dural closure. The product was applied with the DuraSeal System Applicator by spraying a thin (1 - 2 mm) coating, ensuring that all suture holes were covered. |
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