E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
The participants enrolled in this study will all undergo major upper abdominal surgery (i.e. mostly Pylorus Preserving Pancreatico Duodenectomy or whipple procedure) mostly for pancreatic cancer, papillary carcinoma or pancreatitis. However, the indication for which the IMP is administered is intestinal ischemia and reperfusion. |
De deelnemers aan de studie ondergaan allen grote abdominale chirurgie (veelal Pylorus Preserving Pancreatico Duodenectomie of whipple procedure) meestal in het kader van pancreas of papilcarcinoom dan wel pancreatitis. Echter, de indicatie waarvoor het IMP wordt toegediend is darm ischemie en reperfusie. |
|
E.1.1.1 | Medical condition in easily understood language |
Oxygen deficiency of the human bowel |
Zuurstofgebrek van de darm oftewel het darminfarct |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Digestive System Diseases [C06] |
MedDRA Classification |
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 |
This study aims at (further) revealing the pathophysiology of intestinal IR in man, with a specific interest for the role of proteases and protease-activated receptor-2 (PAR-2), cellular and inflammatory changes, barrier function and intestinal permeability, microscopic mucosal changes and gene expression patterns. An important element will be the determination of the effects of protease- and MMP inhibitors. By these means we hope to identify preventive and therapeutic strategies for patients with intestinal IR. |
Ophelderen van de pathofysiologie van darm ischemie in de mens, met een bijzondere interesse voor de de rol van proteases en protease-activated receptor-2 (PAR-2), cellulaire en inflammatoire veranderingen, barriere functie en darm permeabiliteit, microscopische mucosale veranderingen en gen expressie patronen. Een belangrijk element zal het in kaart brengen van de effecten van protease- en MMP inhibitoren zijn. We hopen nieuwe preventieve en therapeutische strategieen te ontwikkelen voor patienten met darm IR. |
|
E.2.2 | Secondary objectives of the trial |
Not applicable |
niet van toepassing |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Adult patients (18 years of age and older) undergoing major upper abdominal surgery o Whipple-procedure or pylorus preserving pancreatico duodenectomy (PPPD) o Ileo-Jejunal bypass surgery o Roux-en-Y gastric bypass o Total gastrectomy o Hepatico jejunostomy o Pancreaticojejunostomy (Frey’s procedure) Patients who have given an informed consent
|
Volwassen patient (18 jaar of ouder) die grote bovenbuikschirurgie ondergaan o Whipple-procedure of pylorus preserving pancreatico duodenectomie (PPPD) o Ileo-Jejunal bypass chirurgie o Roux-en-Y gastric bypass o Totale gastrectomie o Hepatico jejunostomie o Pancreaticojejunostomie (Frey’s procedure) Patienten die informed consent hebben gegeven
|
|
E.4 | Principal exclusion criteria |
<18 years of age or older but no proper understanding of the research proposal Inflammatory bowel disease Celiac disease Acute major abdominal procedures Patients who have refused informed consent
For the population who will receive tranexamic acid additional exclusion criteria have been formulated:
Active or history of thrombo-embolic disorders such as deep venous thrombosis, pulmonary embolism or cerebral embolism History of blood coagulation disorder (hypercoagulation state) Subarachnoid hemorrhage Disseminated intravascular coagulation (DIS) Severe renal insufficiency: i.e. serum kreatinine >150 µmol/L History of convulsions Pregnancy Known hypersensitivity of allergy for tranexamic acid Simultaneous use of thrombolytics (e.g. alteplase, streptokinase) Simultaneous use of hormonal anticonceptives or other substances that induce hemostasis.
For the population who will receive doxycycline additional exclusion criteria have been formulated:
Known hypersensitivity of allergy for tetracyclines. Severe liver function disorder i.e. ASAT or ALAT or AF or γ-GT >150 U/L whether or not combined with severe renal insufficiency: i.e. serum kreatinine >150 µmol/L. Severe renal insufficiency: i.e. serum kreatinine >150 µmol/L. Porphyria Myasthenia gravis Simultaneous usage (or just before or after administration of doxycycline) of oral retinoids or substances containing metalions (such as antagel or ironpreparations) Simultaneous use of methoxyflurane (anesthetic) or oral contraceptives Bodyweight beneath 50 kg History of blood coagulation disorder (inert hypocoagulation state) Pregnancy or lactating
|
<18 jaar of ouder maar geen adequaat inzicht in het onderzoek IBD Coeliakie Acute abdominale procedures Patienten die geen informed consent hebben gegeven
Voor de tranexaminezuur groep ook de volgende criteria:
voorgeschiedenis van thrombo-embolische aandoeningen bijv DVT, longembolie, hersenembolie voorgeschidenis van stollingsstoornis (hypercoagulatie) Subarachnoidale bloeding Disseminated intravascular coagulation (DIS) Ernstige nierinsifficientie: i.e. serum kreatinine >150 µmol/L voorgeschiedenis met convulsies zwangerschap gekende overgevoeligheid of allergie voor tranexaminezuur gelijktijdig gebruik van trombolytica (bijv. alteplase, streptokinase) of hormonale anticonceptie of andere stoffen die hemostase induceren.
Aanvullende criteria voor doxycycline:
gekende overgevoeligheid of allergie voor tetracyclines. Ernstige lever functie stoornis i.e. ASAT or ALAT or AF or γ-GT >150 U/L al dan niet gecombineerd met ernstige nierinsufficientie: i.e. serum kreatinine >150 µmol/L. ernstige nier insufficientie: i.e. serum kreatinine >150 µmol/L. Porfyrie Myasthenia gravis Gelijktijdig gebruik van orale retinoiden of stoffen met metaalionen als antagel of ijzerpreparaten Gelijktijdig gebruik van methoxyfluraan of orale anticonceptie lichaamsgewicht onder 50 kg voorgeschiedenis met stollingsstoornis (hypocoagulatie) zwangerschap of lactatie |
|
E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint in this study is inflammation (neutrophil influx, complement activation, interleukins, TNF-α, COX 1-2) and protease activity in tissue as well as in blood plasma. |
inflammatie (neutrofiel influx, complement activatie, interleukines, TNF-α, COX 1-2) en protease activiteit in weefsel en plasma. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
after ischemia, after short respectively prolonged reperfusion and in control samples. |
na ischemie, na korte respectievelijk lange reperfusie en in controle samples |
|
E.5.2 | Secondary end point(s) |
The secondary study parameter is intestinal cell damage, which will be evaluated by assessment of plasma levels of I-FABP, ILBP as well as tissue stainings for morphology, tight junctions, apoptosis, goblet cells, mucines, cell proliferation, I-FABP, L-FABP and SM22. |
darmschade, welke geevalueerd zal worden dmv plasma levels van I-FABP, ILBP alsmede weefsekleuringen voor morfologie, tight junctions, apoptose, goblet cellen, mucines, cel proliferatie, I-FABP, L-FABP en SM22. |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
after ischemia, after short respectively prolonged reperfusion and in control samples. |
na ischemie, na korte respectievelijk lange reperfusie en in controle samples |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | Yes |
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 | No |
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 | 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 | 3 |
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 | 2 |
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
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |