Neoplasms

All Conditions

Digestive System Diseases

Adenoma

Colonic Neoplasms

Colorectal Neoplasms

Intestinal Neoplasms

Gastrointestinal Neoplasms

Digestive System Neoplasms

Gastrointestinal Diseases

Colonic Diseases

Intestinal Diseases

Neoplasms, Glandular and Epithelial

Neoplasms by Histologic Type

Anti-Infective Agents

All Drugs and Chemicals

Herbal and Botanical

Metronidazole

Fosfomycin

Anti-Bacterial Agents

Antiprotozoal Agents

Antiparasitic Agents

Cola

14 patient with right-sided colon cancer receive intervention before the hemicolectomi.

both arms of this study use the same intervention.

14 patient with right-sided colon adenoma receive intervention before the endoscopic mucosa resection.

both arms of this study use the same intervention.

therapeutic endoscopy where the two drugs: metronidazole and fosfomycin disodium are sprayed through out the right colon section (from caecum to right colon flexure). This intervention is going to be performed on patients in both track 1 and track 2a.

therapeutic endoscopy with metronidazole and fosfomycin disodium

Astrid LB Bennedsen, M.D.

Ismail Gögenur, DMSc, MD,

Peter Vilmann, DMSc, MD

Clinical studies have shown that patients with right-sided colon cancer have reduced progression-free and overall survival compared to patients with left-sided colon cancer. At the same time, patients with right-sided colon adenomas have a higher risk of developing interval cancers after endoscopic mucosal resection. Dysbiosis and known bacterial drivers play a significant role in the carcinogenesis of colorectal cancer, and may contribute to the growth of adenomas. Clinical studies have found biofilm formation and positive staining for Fusobacterium nucleatum (FN) in almost all right-sided colon cancers and adenomas. The composition of bacteria also in the normal mucosa in these two groups of patients has been found to be different from healthy controls.

Endoscopic preoperative antibiotic local treatment of the biofilm and tumors would theoretically result in decreased tumor mass, recovery of the mucosa, and a normalization of the immune response in the treated section of the colon. The oral administration of the antibiotic metronidazole in mice has shown to lower the tumor load (FN-positive xenograft tumors) and decrease in intratumoral abundance of the pro-carcinogenic bacteria, FN.

The aim of this study is to investigate the effect of local antibiotic treatment with fosfomycin and metronidazole on tumor characteristics and the colonic biofilm in patients with right-sided colon cancer or right-sided colon adenomas. This is a clinical proof-of-concept intervention study, and the investigators are to our knowledge the first group to look into local antibiotic treatment of biofilm in patients with colon cancer or colon adenoma. It is based on a non-randomized trial design with an open label single group assignment. There are two tracks depending on the pathology of the tumor: 1) patients with right-sided colon cancer; 2a) patients with right-sided colon adenoma. The intervention is a therapeutic endoscopy where the antibiotics fosfomycin and metronidazole are sprayed throughout the right colon section from caecum to the right colon flexure (100ml of gel contains 800mg of fosfomycin and 200mg of metronidazole). Patients will be included prospectively from the surgical department of Herlev University Hospital and Zealand University Hospital once having received oral and written information, followed by signing the consent. There will be a retrospective cohort of patients with colon adenoma from 2018 (track 2b). The investigators will retrieve the archived adenoma tissue as control tissue. In Clinical Trial, Track 1 and Track 2a will be registered as two different arms that use the same intervention, but the results from each arm later on is going to be reported in separate publications.

The same intervention will apply to both arms of this study, the only difference is the patient group which receives the treatment.

In Clinical Trial, Track 1 and Track 2a will be registered as two different arms, but the results from each arm later on is going to be reported in separate publications.

Preoperative Endoscopic Treatment With Fosfomycin and Metronidazole in Patients With Right-sided Colon Cancer and Colon Adenoma (MEFO-trial)

Preoperative Endoscopic Treatment With Fosfomycin and Metronidazole in Patients With Right-sided Colon Cancer and Colon Adenoma: a Clinical Proof-of-concept Intervention Study MEFO Trial

A quantitative change in the bacterial biofilm adherent to the colonic epithelium of the resected colon adjusted for baseline level found before the intervention through fluorescence in situ (FISH) technique. The specific measurement variable is biofilm depth in μm. The method of aggregation will be means.

A quantitative change in the bacterial biomass adherent to the colonic epithelium of the resected colon adjusted for baseline level found before the intervention through fluorescence in situ (FISH) technique. The specific measurement variable is biofilm mass in ng/cm\^2. The method of aggregation will be means.

- The determination of differences in translational markers present in the resected tumor tissue adjusted for the level seen at the baseline (the therapeutic colonoscopy) through a principal component analysis (PCA). The translational markers of interest are tumor markers, markers of the microenvironment and the immune response. The analyses will be performed using the PanCancer IO 360TM Gene Expression Panel (nanoString).

- The determination of a change in the bacterial composition adjusted for the bacteria found at baseline before the intervention through fluorescence in situ (FISH) technique and sequencing with Metagenome.

Differences in the presence of known bacterial drivers such as Fusobacterium nucleatum, Enterococcus faecalis, Bacteroides Fragilis, Escherischia coli, and Porphyromonas in the tumor samples from preoperative biopsies and the resected colon.

Differences in gene expression in the normal mucosa from preoperative biopsies and the resected colon using the PanCancer IO 360TM Gene Expression Panel (nanoString).

Differences in gene expression in the preoperative and operative blood samples determined by the nCounter® PanCancer Immune Profiling Panel (nanoString).

Assessment of the immunological response using immunoscore. A binary outcome of either high or low immunoscore

The pathological assessment of tumor: tumor type, grade of dysplasia, TNVM-stage, MSI- status.

A microbiological assessment of the biofilm present on the tumor in track 1. This will be reported as a binary outcome.

The pathological assessment of the normal mucosa of the right hemicolon: presence of biofilm, dysplasia and inflammation.

Safety assessment of the spraying of the right hemicolon with fosfomycin/metronidazole gel. This will be assessed through adverse events reported at least 19 days after the intervention (postoperative day 14).

Differences in gene expression in the normal mucosa from preoperative biopsies and the operative biopsies using the PanCancer IO 360TM Gene Expression Panel (nanoString).

Differences in gene expression in the tumor tissue from the mucosal resection compared with archived FFPE tumor tissue from patients with colon adenoma using the PanCancer IO 360TM Gene Expression Panel (nanoString).

Differences in gene expression in the preoperative blood samples and the blood samples taken on the operation day using the nCounter® PanCancer Immune Profiling Panel (nanoString).

The pathological assessment of polyp using the Paris Classification and the Lateral Spreading Tumor Classification to determine tumor type.

The pathological assessment of polyp: size

an assessment of the immunological response via immunoscore

The microbiological assessment of polyp: an assessment of the biofilm present on the polyp. This will be reported as a binary outcome.

Assessment of the spraying of the right hemicolon with fosfomycin/metronidazole gel. By collecting reported adverse events at least 19 days after the intervention (postoperative day 14).

Costerton Biofilm Center

Reponex Pharmaceuticals A/S

Region Zealand

Zealand University Hospital

Infections

Urinary Tract, Sexual Organs, and Pregnancy Conditions

Symptoms and General Pathology

Urinary Bladder Neoplasms

Communicable Diseases

Urinary Tract Infections

Urogenital Diseases

Female Urogenital Diseases

Pregnancy Complications

Female Urogenital Diseases and Pregnancy Complications

Urologic Diseases

Male Urogenital Diseases

Amikacin

Antibiotics, Antitubercular

Patients in the control group will receive amikacin as prophylactic antibiotic. It will be administered intravenously 30 minutes before procedure. Patients with an estimated glomerular filtration rate (EGFR) greater or equal than 70 ml/min will receive 1 gram of Amikacin. Patients with an EGFR less than 70 ml/min will received a calculated dose following the next parameters.

Patients with EGFR between 69-40 ml/min should receive: the calculated GFR x 0.18 = mg/kg.

Patients with EGFR less than 40 ml/min should receive: the calculated GFR x 0.36 = mg/kg.

Patients in the intervention group will receive Fosfomycin trometamol as prophylactic antibiotic. It will be administered orally in the night before procedure. Patients must be on fasting and will receive 3 grams.

Is the prophylactic drug which will be used in the intervention group.

Fosfomycin Tromethamine 3G Sachet

Is the prophylactic drug which will be used in the control group.

Ricardo A Castillejos, MD

Antimicrobial prophylaxis in urological procedures is aimed to reduce the risk of local and systemic postoperative infections such as urinary tract infection or surgical site infection. It should be recommended only when the potential benefit exceeds the anticipated risks and costs. However, a wide variation in the use of periprocedural prophylactic antibiotics has been demonstrated, which frequently is incurred as an inappropriate selection of antimicrobials, inadequate schedule of administration or excessive duration of prophylaxis.

The increase in multidrug resistance of antibiotics in recent decades has been associated with its misuse, resulting in an increased rate of morbidity and mortality, prolonged hospital stays and increased care costs. Specifically, resistance to fluoroquinolones has increased its prevalence, a group of antibiotics widely used in urology. Therefore, local resistance patterns should be considered before following recommendations, especially in populations with poor control of antimicrobial use.

Transurethral resection of bladder (TURB) has become a frequent surgical procedure, as it is the main diagnostic and therapeutic tool for bladder cancer, representing the ninth most common malignancy in the world. However, no recent randomized clinical trial has investigated antimicrobial prophylaxis for TURB. It is well known that an expected complication of TURB is urinary tract infection (UTI), which is the most common healthcare related infection worldwide.

Under this premise, a randomized clinical trial is proposed to analyze the current panorama of UTI as a transcendent postoperative complication of TURB, under the context of the new emerging resistance parameters. The use of fosfomycin trometamol is proposed as a good potential option for urological procedures due to its high activity against multidrug-resistant gram-negative bacteria and its favorable pharmacokinetic parameters that guarantees wide tissue penetration and a high urinary concentration, in a single dose, the which will be compared with the control group with traditional prophylaxis (amikacin). The relative risk of UTI will be estimated, as well as the attributable risk of the main risk factors associated with this infection, allowing a better characterization of this population for adequate decision making regarding this clinical challenge.

In 1931, Stern and McCarthy created the first practical cut-out resectoscope, allowing endoscopic diagnosis and treatment of bladder tumors for the first time in history. From now on, TURB has been the cornerstone of the management of bladder tumors. Histological evaluation is essential for the precise classification and staging of this cancer, as well as the therapeutic modality of choice for most patients with bladder cancer

Epidemiology Bladder cancer is the most common malignancy of the urinary tract, being the seventh most common cancer in men and number 17 in women. The worldwide incidence is 9 per 100,000 men and 2 per 100,000 women. More than 75,000 new cases of bladder cancer are diagnosed in the United States of America annually, making bladder cancer the ninth most common malignancy of the urinary tract. In addition, bladder cancer is responsible for 15,000 annual deaths in the United States of America, which makes it the thirteenth cause of death in general and the second most common cause of death among genitourinary tumors

In Latin America, bladder cancer has an incidence of 5.6 per 100,000 inhabitants. Mexico lacks reliable records of cancer epidemiology, however, in Mexico it corresponds to 14.4% of genitourinary cancers, ranking as the fourth most frequent. Mortality in men is 3 per 100,000 and in women 1 per 100,000 with very high geographical variation due to unequal access to health services. In a second level hospital in Mexico City were reported 861 cases of genitourinary cancer, bladder cancer was accounted for 13%.

Urinary tract infection as a postoperative complication In urology, the act of instrumentation is a potential contributor of infection risk.

Before finalizing the TURB, a urethral catheter is placed to irrigate and wash the bladder three times with 100 mL of saline. At the end of the procedure, the bladder is completely drained and the function of the catheter is guaranteed to assess a subsequent irrigation in the postoperative period, for complications that may occur, such as haematuria or urinary retention due to obstruction of a clot and / or irrigation of intravesical chemotherapy. In the absence of complications, the catheter can be removed after 24 hours.

The risk of urinary tract infection is directly proportional to the duration of the catheterization, measured in days (catheter days) and the surgical time. It is reported a mean catheter day of 1.9 +/- 1.7 in 130 post-TURB patients. It is well known that urinary tract infection (UTI) associated with catheter use is the most common healthcare related infection in the world and is the result of widespread use of urinary catheterization. The incidence reported of UTI in the literature after surgery is 5-10%. Antimicrobial prophylaxis in TURB decreases the risk of UTI from 10.1% to 2.9%. In a series of 10,559 patients in the United States of America the incidence of UTI in post-TURB patients was 3 to 5%, being the most observed complication. The investigators concluded that as surgery time increased, urinary tract infection increased (2.8% in 0-30min to 5.4% in\> 90 min, P \<0.001).

In addition, a patient with cancer is a host with increased susceptibility to acquire infections. In the last 50 years the epidemiology of bacterial infections in cancer patients has presented a continuous change influenced by the nature and intensity of chemotherapeutic and immunosuppressive regimes and the widespread use of empirical and prophylactic antibiotics

Antimicrobial prophylaxis in TURB Surgical antimicrobial prophylaxis is the systemic administration of an antibiotic before, during and / or shortly after a urological procedure aimed to reduce the risk of local and systemic postoperative infections, such as urinary tract infection or surgical site infection. The optimal antimicrobial drug should be a microbiologically active agent against the most frequent potential pathogens and must have good pharmacological properties.

Antibiotics The antibiotics used for prophylaxis must be effective against the characteristic bacterial microbiota of the surgical site and relevant to the disease. In addition, it must be considered the properties of the antimicrobial agent, such as cost, convenience and safety. It should reach tissue serum levels that exceed the minimum inhibitory concentration for microorganisms characteristic of the surgical site, in this case Enterobacteriaceae and Enterococci. Moreover, it must have a long half-life to maintain sufficient serum and tissue concentrations throughout the procedure without the need to administer another dose. It must be safe, cheap and unlikely to promote bacterial resistance.

For the urinary tract, cephalosporins, fluoroquinolones and aminoglycosides are generally effective, have a long half-life, are cheap (when used as a single dose) and are rarely associated with allergic reactions. In addition, fluoroquinolones and aminoglycosides can be used in patients with a beta-lactam allergy. These antimicrobials can effectively cover the expected organisms and meet the criteria indicated above.

Current recommendations and the context in Mexico The American Urological Association (AUA) and the Japanese guidelines recommend the use of fluoroquinolones, trimethoprim- sulfamethoxazole, penicillins, first or second generation cephalosporins or aminoglycosides before the start of TURB as an antimicrobial prophylaxis. According to the guidelines of the Canadian Urology Association (CUA), any randomized clinical trials of antimicrobial prophylaxis in TURB were found, so the recommendations about antibiotic prophylaxis are based on other endoscopic urological procedures. Use of fluoroquinolone are recommended for prophylaxis before surgical procedure, also trimethoprim- sulfamethoxazole or third generation cephalosporins can be used.

In a study of TURB in 2006, the investigators used oral levofloxacin 200mg as prophylactic antibiotic, which was given 30-60 minutes before the procedure. However, in this context it would not be convenient to use this regime, because in a study conducted in 2015 specified that countries with poor control of the use of antimicrobials such as Mexico, there is a trend towards bacterial resistance, placing fluoroquinolones as the second line of treatment in urinary tract infection . An important cause of the emergence of these resistant strains is the excessive use (treatment when it is not needed and prolonged exposure to therapy) of antimicrobial agents for all indications.

Fluoroquinolone-based regimens, a pillar of prophylaxis guidelines, are increasingly ineffective due to a constant increase in multidrug-resistant gram-negative bacteria (MDR). The same concerns apply with second and third generation cephalosporins, which have resistance problems and, if administered orally, do not have a good penetration in tissues such as prostate.

Problem definition Since 2000 a serious global public health problem has arisen in relation to the increase in antimicrobial resistance, particularly among the pathogens of the ESKAPE group (Enterococcus faecium, Staphylococcus aureus, Clostridium difficile, Acinetobacter species, Pseudomona aeruginosa and Enterobacteriaceae), which are microorganisms that cause urinary tract infection. In addition to the increase in multidrug resistance to antibiotics and their misuse, this has been associated with an increased rate of morbidity and mortality, prolonged hospital stay and increased care costs.That's why antimicrobial prophylaxis is of such magnitude and importance that it needs to be updated to its reasoned use in order to improve its performance.

In the case of TURB, there is little evidence in the literature that recommends the use of preoperative antimicrobial prophylaxis in TURB, due to the lack of studies on this subject. The incidence of UTI in TURB has been reported between 2 to 39% and risk of infection in TURB from 18 to 75%.

Justification Nosocomial infection has been associated with an increased length of postoperative stays, rate of hospital readmission and the outpatient use of antimicrobial agents, which significantly increases the costs and use of medical resources.

Optimally, the specific prophylactic regimen should be supported by clinical trials evidence. In many cases, randomized clinical trials are not available. Such lack of data does not impede the adequacy of some antibiotic regimes based on the efficacy of the drugs, the cost, safety and knowledge of the microbiota of the surgical site. When selecting the antimicrobial for prophylaxis, the clinician should be aware of the different resistance patterns in the local community. Specifically, resistance to fluoroquinolones, which has increased their prevalence, therefore, should be considered due to the high use of these agents for antimicrobial prophylaxis in urological surgery.

Regarding the premise, "surgical antimicrobial prophylaxis is recommended only when the potential benefit exceeds the risks and anticipated costs," information on the costs associated with the prophylactic use of antimicrobials specifically for urological surgery cannot be easily obtained, however, data from other surgical disciplines can guide us in making decisions. For example, the use of prophylaxis in transurethral resection of the prostate, where there are multiple clinical trials and it is recommended the use of prophylaxis with pre-procedure third-generation cephalosporins. On the contrary, excessive and / or inappropriate antimicrobial prophylaxis increases costs, which can be reduced with measures to improve commitment with evidence-based recommendations. In general, the financial costs of prophylaxis are controlled using the least expensive and safest effective agent for the shortest time that is compatible with good clinical practice.

There are currently few randomized clinical studies (conducted more than 25 years ago) on the subject. In 1988 a randomized clinical trial was conducted with 243 patients undergoing TURB, three perioperative doses of cefradine were compared with placebo, observing a significant reduction in the rate of bacteriuria. However, no similar randomized clinical trials have been performed, as well as for other cystoscopic procedures that involve transurethral manipulation (bladder biopsy, ureteral catheterization, laser prostatectomy, etc.). For this reason, updated and available evidence is required for this widely used procedure.

The American Urological Association and the Japanese guidelines recommend the use of fluoroquinolones, trimethoprim, penicillins, first or second generation cephalosporins or aminoglycosides before the start of TURB as an antimicrobial prophylaxis In countries with poor control of the use of antimicrobials such as Mexico, there is a tendency towards bacterial resistance, placing fluoroquinolones as the second line of treatment for urinary tract infection. Therefore, the use of fluoroquinolone-based regimens, a pillar of prophylaxis guidelines, is increasingly ineffective due to a constant increase in resistant multidrug gram negative bacteria. The same applies with second and third generation cephalosporins, which also have resistance problems.

In 2007 a randomized clinical trial was performed and the effectiveness of fosfomycin against cefotiam to prevent infections associated with urological surgery was compared ,the response rates reported were 92.9% for fosfomycin and 94.9% for cefotiam in patients with transurethral surgery. Therefore, fosfomycin trometamol may be a potential option for urological procedures, due to its high effectiveness against resistant multidrug gram negative bacteria and its favorable pharmacokinetic parameters.

The aim of the study is to provide evidence to help clarify the usefulness and feasibility of antimicrobial prophylaxis, being fosfomycin trometamol an antibiotic that meets the necessary characteristics for this intervention. Therefore it will contribute to the characterization of the population that undergoes this procedure, which includes the description of risk factors and microbiological characteristics, such as the identification of emerging resistant strains. The results obtained will contribute towards the decision-making of this and other cytoscopic procedures due to the similarities in terms of invasiveness and possible tissue trauma, suggesting that the data regarding transurethral bladder resection can reasonably be extrapolated to other cystoscopic procedures with manipulation. The above will be compared with the antimicrobial prophylaxis that usually occurs in the Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran which is based on aminoglycosides (Amikacin) administered in anesthetic induction before the surgical procedure.

Antimicrobial Prophylaxis in Patients Who Underwent a Transurethral Resection of Bladder (TURB)

Randomized Phase II Study of Antibiotic Prophylaxis With Fosfomycin vs Amikacin in Transurethral Resection of Bladder

Measurement tool: Urinalysis Measurement unit: Presence of nitrites in urinalysis: positive. Absence of nitrites in urinalysis: negative

Measurement tool: Urinalysis and microscopy Measurement unit: Presence of 0-5 leukocytes per field in urinalysis: negative.

Presence of 6 or more leukocytes per field in urinalysis: positive

Measurement tool: Urinalysis and microscopy Measurement unit: Presence of 0-2 erythrocytes per field in urinalysis: negative.

Presence of 3 or more erythrocytes per field in urinalysis: positive

Measurement tool: Interrogation and questionnaire Measurement unit: Use of antibiotics in the past 3 months before procedure: positive.

No use of antibiotics in the past 3 months before procedure: negative.

Measurement tool: Interrogation, questionnaire and clinical file review. Measurement unit: Number of times the patient had a urinary tract infection before procedure.

Measurement tool: Interrogation, questionnaire and clinical file review. Measurement unit: Patients had a urological surgery before procedure: positive Patient did not had a urological surgery before procedure: negative

Measurement tool: Interrogation, questionnaire and clinical file review. Measurement unit: Patient had cystoscopy before procedure: positive Patient did not had a cystoscopy before procedure: negative

Measurement tool: Interrogation, questionnaire and clinical file review. Measurement unit: Patient had urinary malformation before procedure: positive Patient did not had a urinary malformation before procedure: negative

Measurement tool: Interrogation, questionnaire and clinical file review. Measurement unit: Patient had obstructive uropathy before procedure: positive Patient did not had a obstructive uropathy before procedure: negative

Measurement tool: Interrogation, questionnaire and clinical file review. Measurement unit: Patient had vesicoureteral reflux before procedure: positive Patient did not had vesicoureteral reflux before procedure: negative

Measurement tool: Interrogation, questionnaire and clinical file review. Measurement unit: Number of times the patient had a transurethral resection of bladder tumor before procedure

Measurement tool: Interrogation and questionnaire Measurement unit: Use of intravesical chemotherapy before procedure: positive. Use of intravesical chemotherapy before procedure: negative.

Measurement tool: Interrogation and questionnaire Measurement unit: Use of intravesical chemotherapy before procedure: positive. Patient did not had intravesical chemotherapy before procedure: negative.

Measurement tool: Interrogation and questionnaire Measurement unit: Use of intravesical immunotherapy with BCG before procedure: positive.

Patient did not had intravesical immunotherapy with BCG before procedure: negative.

Measurement tool: Clinical manifestations of urinary tract infection plus positive urine culture.

Measurement unit: Colony-forming unit (CFU) per milliliter (mL) depending on how the urine sample was took. A positive urine culture will be confirmed using the next parameters: For midstream urine a count greater or equal to 100,000 CFU/mL and for urine obtained from a urethral catheter a count a count greater or equal to 100 CFU/mL Clinical manifestations of urinary tract infection: Patient presenting 1 or more of the following signs or symptoms: fever, dysuria, frequency, hematuria, lumbar pain, costovertebral angle tenderness)

Measurement tool: Positive urine culture and no clinical manifestation of urinary tract infection Measurement unit: Colony-forming unit (CFU) per milliliter (mL) depending on how the urine sample was took. A urine culture will be positive using the next parameters: For midstream urine a count greater or equal to 100,000 CFU/mL and for urine obtained from a urethral catheter a count a count greater or equal to 100 CFU/mL No clinical manifestations of urinary tract infection

Measurement tool: Observation of the procedure and report of data collection sheet Measurement unit: Patients that presented a single tumor: positive Patients presenting more than 1 tumor: negative

Measurement tool: Observation of the procedure and report of data collection sheet Measurement unit: Patients that presented 2 to 7 tumors: positive Patients that presented more than 7 tumors or a single tumor: negative

Measurement tool: Observation of the procedure and report of data collection sheet Measurement unit: Patients that presented more than 7 tumors: positive Patients that presented less than 8 tumors: negative

Measurement tool: Observation of the procedure and report of data collection sheet Measurement unit: milliliters

Measurement tool: Observation of the procedure and report of data collection sheet Measurement unit: Patient with I ASA classification: Positive Patient with other ASA classification not being I: Negative

Measurement tool: Observation of the procedure and report of data collection sheet Measurement unit: Patient with II ASA classification: Positive Patient with other ASA classification not being II: Negative

Measurement tool: Observation of the procedure and report of data collection sheet Measurement unit: Patient with III ASA classification: Positive Patient with other ASA classification not being III: Negative

Measurement tool: Observation of the procedure and report of data collection sheet Measurement unit: Patient with IV ASA classification: Positive Patient with other ASA classification not being IV: Negative

Measurement tool: Observation of the procedure, report of data collection sheet and follow up note review Measurement unit: Patient with a urethral catheter removed 24 hours after procedure: positive Patient with a urethral catheter after 24 hours after procedure: negative

Based on the results of the histopathology report, the patients will be classified in nominal groups (non-muscle invasive bladder tumor, muscle invasive bladder tumor, chronic cystitis or other)

Measurement tool: Histopathology report Measurement unit: Patient with muscle invasive bladder cancer: Positive Patient with non-muscle invasive bladder cancer or chronic cystitis: Negative

Based on the results of the histopathology report, the patients will be classified in nominal groups (non-muscle invasive bladder tumor, muscle invasive bladder tumor, chronic cystitis or other) Measurement tool: Histopathology report Measurement unit: Patient with muscle invasive bladder cancer: Positive Patient with non-muscle invasive bladder cancer or chronic cystitis: Negative

Based on the results of the histopathology report, the patients will be classified in nominal groups (non-muscle invasive bladder tumor, muscle invasive bladder tumor, chronic cystitis or other) Measurement tool: Histopathology report Measurement unit: Patient with non-muscle invasive cancer: Positive Patient with muscle invasive cancer or chronic cystitis: Negative

Based on the results of the histopathology report, the patients will be classified in nominal groups (non-muscle invasive bladder tumor, muscle invasive bladder tumor, chronic cystitis or other) Measurement tool: Histopathology report Measurement unit: Patient with non-muscle invasive bladder cancer: Positive Patient with muscle invasive bladder cancer or chronic cystitis: Negative

Based on the results of the histopathology report, the patients will be classified in nominal groups (non-muscle invasive bladder tumor, muscle invasive bladder tumor, chronic cystitis or other) Measurement tool: Histopathology report Measurement unit: Patient with chronic cystitis: Positive Patient with non-muscle invasive bladder cancer or muscle invasive bladder cancer: Negative

Measurement tool: Observation of the procedure, report of data collection sheet and follow up note review Measurement unit: Number of days of urethral catheter after procedure

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Preoperative Endoscopic Treatment With Fosfomycin and Metronidazole in Patients With Right-sided Colon Cancer and Colon Adenoma (MEFO-trial)	NCT04312360	Right-sided Col... Right-sided Col...	therapeutic end...	18 Years -	Zealand University Hospital
Antimicrobial Prophylaxis in Patients Who Underwent a Transurethral Resection of Bladder (TURB)	NCT04209192	Urinary Tract I... Bladder Cancer Urologic Surgic...	Fosfomycin Trom... Amikacin	18 Years -	Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran

Spots Global Cancer Trial Database for fosfomycin

Every month we try and update this database with for fosfomycin cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Spots Global Cancer Trial Database for fosfomycin

Every month we try and update this database with for fosfomycin cancer trials from around the world to help patients and their families find trials that might be right for them. We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Every month we try and update this database with for fosfomycin cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.