1
|
Reinisch W, Colombel JF, D'Haens GR, Rimola J, Masior T, McKevitt M, Ren X, Serone A, Schwartz DA, Gecse KB. Efficacy and Safety of Filgotinib for the Treatment of Perianal Fistulizing Crohn's Disease [DIVERGENCE 2]: a Phase 2, Randomized, Placebo-Controlled Trial. J Crohns Colitis 2024:jjae003. [PMID: 38366672 DOI: 10.1093/ecco-jcc/jjae003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Indexed: 02/18/2024]
Abstract
BACKGROUND AND AIMS There is an unmet need for the treatment of perianal fistulizing Crohn's disease [PFCD]. This study evaluated the efficacy and safety of the Janus kinase 1 preferential inhibitor filgotinib, for the treatment of PFCD. METHODS This phase 2, double-blind, multicentre trial enrolled adults with PFCD and prior treatment failure. Participants were randomized [2:2:1] to receive filgotinib 200 mg, filgotinib 100 mg, or placebo once-daily orally for up to 24 weeks. The primary endpoint was combined fistula response [reduction from baseline of at least one draining external opening determined by physical assessment, and no fluid collections >1 cm on pelvic magnetic resonance imaging (MRI)] at week 24. RESULTS Between April 2017 and July 2020, 106 individuals were screened and 57 were randomized. Discontinuations were lowest in the filgotinib 200 mg group [3/17 (17.6%) versus 13/25 (52.0%) for filgotinib 100 mg and 9/15 (60.0%) for placebo]. The proportion of participants who achieved a combined fistula response at week 24 was 47.1% [8/17; 90% confidence interval (CI) 26.0, 68.9%] in the filgotinib 200 mg group, 29.2% [7/24; 90% CI 14.6, 47.9%] in the filgotinib 100 mg group, and 25.0% [3/12; 90% CI 7.2, 52.7%] in the placebo group. Serious adverse events occurred more frequently with filgotinib 200 mg [5/17 (29.4%)] than with placebo [1/15 (6.7%)]. There were no treatment-related serious adverse events or deaths. CONCLUSIONS Filgotinib 200 mg was associated with numerical reductions in the number of draining perianal fistulas based on combined clinical and MRI findings compared with placebo, and was generally well tolerated. [NCT03077412].
Collapse
Affiliation(s)
- Walter Reinisch
- Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Jean-Frederic Colombel
- The Dr Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Geert R D'Haens
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - Jordi Rimola
- Inflammatory Bowel Disease Unit, Department of Radiology, Hospital Clinic of Barcelona, IDIBAPS, Barcelona, Spain
| | | | | | | | | | - David A Schwartz
- Division of Gastroenterology, Hepatology and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Krisztina B Gecse
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, Netherlands
| |
Collapse
|
2
|
Gottlieb J, Torres F, Haddad T, Dhillon G, Dilling DF, Knoop C, Rampolla R, Walia R, Ahya V, Kessler R, Budev M, Neurohr C, Glanville AR, Jordan R, Porter D, McKevitt M, German P, Guo Y, Chien JW, Watkins TR, Zamora MR. A randomized controlled trial of presatovir for respiratory syncytial virus after lung transplant. J Heart Lung Transplant 2023; 42:908-916. [PMID: 36964084 DOI: 10.1016/j.healun.2023.01.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 01/06/2023] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
BACKGROUND Respiratory syncytial virus (RSV) infection in lung transplant recipients is associated with high morbidity. This study evaluated the RSV fusion inhibitor presatovir in RSV-infected lung transplant recipients. METHODS In this international Phase 2b, randomized, double-blind, placebo-controlled trial (NCT02534350), adult lung transplant recipients with symptomatic confirmed RSV infection for ≤7 days received oral presatovir 200 mg on day 1 and 100 mg daily on days 2 to 14, or placebo (2:1), with follow-up through day 28. There were 2 coprimary endpoints: time-weighted average change in nasal RSV load from day 1 to 7, calculated from nasal swabs, in the full analysis set ([FAS]; all patients who received study drug and had quantifiable baseline nasal RSV load) and time-weighted average change in nasal RSV load from day 1 to 7 in the subset of patients with pretreatment symptom duration at the median or shorter of the FAS. Secondary endpoints were changes in respiratory infection symptoms assessed using the Influenza Patient-Reported Outcomes questionnaire and lung function measured by spirometry. RESULTS Sixty-one patients were randomized, 40 received presatovir, 20 placebo, and 54 were included in efficacy analyses. Presatovir did not significantly improve the primary endpoint in the FAS (treatment difference [95% CI], 0.10 [-0.43, 0.63] log10 copies/ml; p = 0.72) or the shorter symptom-duration subgroup (-0.12 [-0.94, 0.69] log10 copies/ml; p = 0.76). Secondary endpoints were not different between presatovir and placebo groups. Presatovir was generally well tolerated. CONCLUSIONS Presatovir treatment did not significantly improve change in nasal RSV load, symptoms, or lung function in lung transplant recipients.
Collapse
Affiliation(s)
- Jens Gottlieb
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
| | - Fernando Torres
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Tarik Haddad
- Pulmonary Disease and Critical Care, Tampa General Hospital, Tampa, Florida
| | - Gundeep Dhillon
- Department of Medicine, Stanford University Medical Center, Stanford, California
| | - Daniel F Dilling
- Division of Pulmonary and Critical Care, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
| | - Christiane Knoop
- Department of Chest Medicine, Erasme University Hospital, Brussels, Belgium
| | | | - Rajat Walia
- Pulmonary and Critical Care Section, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
| | - Vivek Ahya
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Romain Kessler
- Department of Respiratory Medicine and INSERM-UMR 1260 Regenerative NanoMedicine, University of Strasbourg, Strasbourg, France
| | - Marie Budev
- Department of Pulmonary Medicine, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Claus Neurohr
- Department of Internal Medicine, University of Munich, Munich, Germany
| | - Allan R Glanville
- Department of Thoracic Medicine, St. Vincent's Hospital, Darlinghurst, New South Wales, Australia
| | | | | | | | | | - Ying Guo
- Gilead Sciences, Inc., Foster City, California
| | | | | | - Martin R Zamora
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado at Denver Anschutz Medical Center, Aurora, Colorado.
| |
Collapse
|
3
|
Reinisch W, Colombel JF, D’Haens GR, Rimola J, DeHaas-Amatsaleh A, McKevitt M, Ren X, Serone A, Schwartz DA, Gecse KB. OP18 Efficacy and safety of filgotinib for the treatment of perianal fistulizing Crohn’s Disease: Results from the phase 2 DIVERGENCE 2 study. J Crohns Colitis 2022; 16. [PMCID: PMC9383240 DOI: 10.1093/ecco-jcc/jjab232.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Background Treatment of perianal fistulizing Crohn’s disease (PFCD) is a major unmet need. Filgotinib (FIL) is a once-daily, oral, preferential Janus kinase 1 inhibitor in development for the treatment of inflammatory bowel diseases. The efficacy and safety of FIL for the treatment of PFCD was evaluated in the phase 2, double-blind, randomized, placebo (PBO)-controlled DIVERGENCE 2 study (NCT03077412). Methods Patients (18–75 years old) with PFCD (documented diagnosis of CD for at least 3 months and 1–3 external openings [EOs] with drainage [spontaneous or on compression] for ≥ 4 weeks before screening) previously treated with antibiotics, immunomodulators and/or tumour necrosis factor inhibitors (TNFi) were randomized (2:2:1) to receive FIL 200 mg, FIL 100 mg or PBO once daily for up to 24 weeks. Active luminal CD was permitted providing that the Crohn’s Disease Activity Index score was ≤ 300 at screening. The primary endpoint was combined fistula response (reduction of ≥ 1 from baseline in the number of draining EOs determined by investigator assessment and no fluid collections > 1 cm on centrally read pelvic magnetic resonance imaging [MRI]) at Week 24. Combined fistula remission (closure of all draining EOs present at baseline and no fluid collections > 1 cm) at Week 24 was a key secondary endpoint. The study was not powered for statistical comparisons and was prematurely terminated owing to low recruitment rates during the COVID-19 pandemic. Results Baseline characteristics were broadly similar across the treatment groups (Table 1). Overall, 91.2% of patients had complex perianal fistulae and TNFi treatment had previously failed in 64.9% of patients. A lower proportion of patients randomized to receive FIL 200 mg discontinued the study compared with those who received PBO (Table 2). The proportion of patients who achieved a combined fistula response at Week 24 was numerically higher in the FIL 200 mg group (47.1%; 90% confidence interval [CI]: 26.0–68.9) than in the PBO group (25.0%; 90% CI: 7.2–52.7) (Figure 1), with similar results observed for combined fistula remission (FIL 200 mg [47.1%; CI: 26.0–68.9] versus PBO [16.7%; CI: 3.0–43.8]) (Figure 2). Treatment-emergent severe adverse events were highest in the FIL 200 mg group (Table 2). Adverse event rates were otherwise similar across treatment groups. ![]()
![]()
![]()
![]()
Conclusion In this phase 2 study, numerically higher fistula response and remission rates were observed after 24 weeks of treatment with FIL 200 mg versus PBO in patients with active PFCD and a history of multiple medical treatment failures. FIL was well tolerated overall. Further studies of FIL for the treatment of PFCD are warranted.
Collapse
Affiliation(s)
- W Reinisch
- Medical University of Vienna, Department of Internal Medicine and Gastroenterology, Vienna, Austria
| | - J F Colombel
- Icahn School of Medicine at Mount Sinai, The Dr. Henry D. Janowitz Division of Gastroenterology, New York, United States
| | - G R D’Haens
- Amsterdam University Medical Centre, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
| | - J Rimola
- Hospital Clinic of Barcelona, Inflammatory Bowel Disease Unit, Department of Radiology, Barcelona, Spain
| | | | - M McKevitt
- Gilead Sciences, Inc, Foster City, United States
| | - X Ren
- Gilead Sciences, Inc, Foster City, United States
| | - A Serone
- Gilead Sciences, Inc, Foster City, United States
| | - D A Schwartz
- Vanderbilt University Medical Center, Division of Gastroenterology, Hepatology and Nutrition, Nashville, United States
| | - K B Gecse
- Amsterdam University Medical Centre, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
| |
Collapse
|
4
|
Chemaly RF, Dadwal SS, Bergeron A, Ljungman P, Kim YJ, Cheng GS, Pipavath SN, Limaye AP, Blanchard E, Winston DJ, Stiff PJ, Zuckerman T, Lachance S, Rahav G, Small CB, Mullane KM, Patron RL, Lee DG, Hirsch HH, Waghmare A, McKevitt M, Jordan R, Guo Y, German P, Porter DP, Gossage DL, Watkins TR, Marty FM, Chien JW, Boeckh M. A Phase 2, Randomized, Double-blind, Placebo-Controlled Trial of Presatovir for the Treatment of Respiratory Syncytial Virus Upper Respiratory Tract Infection in Hematopoietic-Cell Transplant Recipients. Clin Infect Dis 2021; 71:2777-2786. [PMID: 31793991 PMCID: PMC7108134 DOI: 10.1093/cid/ciz1166] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/02/2019] [Indexed: 11/13/2022] Open
Abstract
Background Hematopoietic-cell transplant (HCT) recipients are at risk for severe respiratory syncytial virus (RSV) infection. We evaluated the RSV fusion inhibitor presatovir in a randomized, double-blind, Phase II trial in HCT recipients with RSV upper respiratory tract infections. Methods Patients were stratified by lymphopenia (<200/µL) and ribavirin use; were randomized, stratified by lymphopenia (<200/μL) and ribavirin use, to receive oral presatovir at 200 mg or a placebo on Days 1, 5, 9, 13, and 17, and were followed through Day 28. The coprimary efficacy endpoints were the time-weighted average change in the nasal RSV viral load between Days 1 and 9 and the proportion of patients developing lower respiratory tract complications (LRTCs) through Day 28. Results From 23 January 2015 to 16 June 2017, 189 patients were randomly assigned to treatment (96 to presatovir and 93 to the placebo). Presatovir treatment, compared with the placebo treatment, did not significantly affect (prespecified α = 0.01) a time-weighted average decline in the RSV viral load from Day 1 to 9 (treatment difference, −0.33 log10 copies/mL; 95% confidence interval [CI] −.64 to −.02 log10 copies/mL; P = .040) or the progression to LRTC (11.2% vs 19.5%, respectively; odds ratio, 0.50; 95% CI, .22–1.18; P = .11). In a post hoc analysis among patients with lymphopenia, presatovir decreased LRTC development by Day 28 (2/15 [13.3%] vs 9/14 [64.3%], respectively; P = .008), compared with the placebo. Adverse events were similar for patients receiving presatovir and the placebo. Conclusions Presatovir had a favorable safety profile in adult HCT recipients with RSV but did not achieve the coprimary endpoints. Exploratory analyses suggest an antiviral effect among patients with lymphopenia. Clinical Trials Registration NCT02254408; EUDRA-CT#2014-002474-36.
Collapse
Affiliation(s)
- Roy F Chemaly
- Department of Infectious Diseases, Infection Control and Employee Health, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sanjeet S Dadwal
- Division of Infectious Disease, City of Hope National Medical Center, Duarte, California, USA
| | - Anne Bergeron
- Service de Pneumologie, Université Paris Diderot, Hôpital Saint Louis, Paris, France
| | - Per Ljungman
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Yae-Jean Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Guang-Shing Cheng
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
| | - Sudhakar N Pipavath
- Department of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
| | - Ajit P Limaye
- Department of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
| | - Elodie Blanchard
- Department of Respiratory Diseases, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
| | - Drew J Winston
- Department of Medicine, University of California Los Angeles Ronald Reagan Medical Center, Los Angeles, California, USA
| | - Patrick J Stiff
- Department of Hematology/Oncology, Loyola University Medical Center, Chicago, Illinois, USA
| | - Tsila Zuckerman
- Hematology Institute, Rambam Medical Health Care Campus, Haifa, Israel
| | - Silvy Lachance
- Hematology-Oncology Department, Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, Québec, Canada
| | - Galia Rahav
- Infectious Diseases Unit, Chaim Sheba Medical Center, Tel Hashomer and Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Catherine B Small
- Department of Medicine/Division of Infectious Diseases, Weill Cornell Medicine, New York, New York, USA
| | - Kathleen M Mullane
- Section of Infectious Diseases, University of Chicago Medical Center, Chicago, Illinois, USA
| | - Roberto L Patron
- Department of Infectious Diseases, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Dong-Gun Lee
- Department of Infectious Disease, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hans H Hirsch
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Alpana Waghmare
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
| | | | | | - Ying Guo
- Gilead Sciences Inc., Foster City, California, USA
| | | | | | | | | | - Francisco M Marty
- Department of Infectious Disease, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts, USA
| | | | - Michael Boeckh
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
| |
Collapse
|
5
|
Marty FM, Chemaly RF, Mullane KM, Lee DG, Hirsch HH, Small CB, Bergeron A, Shoham S, Ljungman P, Waghmare A, Blanchard E, Kim YJ, McKevitt M, Porter DP, Jordan R, Guo Y, German P, Boeckh M, Watkins TR, Chien JW, Dadwal SS. A Phase 2b, Randomized, Double-blind, Placebo-Controlled Multicenter Study Evaluating Antiviral Effects, Pharmacokinetics, Safety, and Tolerability of Presatovir in Hematopoietic Cell Transplant Recipients with Respiratory Syncytial Virus Infection of the Lower Respiratory Tract. Clin Infect Dis 2020; 71:2787-2795. [PMID: 31915807 PMCID: PMC7108198 DOI: 10.1093/cid/ciz1167] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/28/2019] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Presatovir significantly reduced nasal viral load, signs, and symptoms of respiratory syncytial virus (RSV) infection in a human challenge study. We evaluated presatovir in hematopoietic-cell transplant (HCT) recipients with RSV lower respiratory tract infection (LRTI). METHODS Patients with confirmed RSV in upper and lower respiratory tract and new chest X-ray abnormalities were randomized (1:1), stratified by supplemental oxygen and ribavirin use, to receive oral presatovir 200 mg or placebo every 4 days for 5 doses. The primary endpoint was time-weighted average change in nasal RSV viral load through day 9. Secondary endpoints included supplemental oxygen-free days, incident respiratory failure requiring mechanical ventilation, and all-cause mortality. RESULTS From January 31, 2015, to March 20, 2017, 60 patients from 17 centers were randomized (31 presatovir, 29 placebo); 59 received study treatment (50 allogeneic, 9 autologous HCT). In the efficacy population (29 presatovir, 28 placebo), presatovir treatment did not significantly reduce time-weighted average change in viral load (-1.12 vs -1.09 log10 copies/mL; treatment difference -0.02 log10 copies/mL, 95% confidence interval: -.62, .57; P = .94), median supplemental oxygen-free days (26 vs 28 days, P = .84), incident respiratory failure (10.3 vs 10.7%, P = .98), or all-cause mortality (0 vs 7.1%, P = .19) versus placebo. Adverse events were similar between arms (presatovir 80%, placebo 79%). Resistance-associated substitutions in RSV fusion protein emerged in 6/29 presatovir-treated patients. CONCLUSIONS Presatovir treatment was well tolerated in HCT patients with RSV LRTI but did not improve virologic or clinical outcomes versus placebo. CLINICAL TRIALS REGISTRATION www.clinicaltrials.gov, NCT02254421; EudraCT, #2014-002475-29.
Collapse
Affiliation(s)
- Francisco M Marty
- Division of Infectious Disease, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Roy F Chemaly
- Department of Infectious Diseases, Infection Control and Employee Health, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Kathleen M Mullane
- Section of Infectious Diseases, University of Chicago Medical Center, Chicago, Illinois, USA
| | - Dong-Gun Lee
- Department of Infectious Disease, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hans H Hirsch
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Catherine B Small
- Department of Medicine/Division of Infectious Diseases, Weill Cornell Medicine, New York, New York, USA
| | - Anne Bergeron
- Service de pneumologie, Univ Paris Diderot, Hôpital Saint Louis, Paris, France
| | - Shmuel Shoham
- Department of Medicine, Division of Infectious Diseases, The Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Per Ljungman
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Alpana Waghmare
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
- Department of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
| | - Elodie Blanchard
- Department of Respiratory Diseases, CHU de Bordeaux, Bordeaux, France
| | - Yae-Jean Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | | | | | | | - Ying Guo
- Gilead Sciences, Inc., Foster City, California, USA
| | | | - Michael Boeckh
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
- Department of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
| | | | | | - Sanjeet S Dadwal
- Division of Infectious Disease, City of Hope National Medical Center, Duarte, California, USA
| |
Collapse
|
6
|
Blaschke AJ, McKevitt M, Ampofo K, Lewis T, Chai H, Guo Y, Dorsch J, Vanderhoof E, Rosen P, Freimann V, Korgenski EK, Toback S, Chien JW. Midturbinate Swabs Are Comparable to Nasopharyngeal Swabs for Quantitative Detection of Respiratory Syncytial Virus in Infants. J Pediatric Infect Dis Soc 2019; 8:554-558. [PMID: 30462262 DOI: 10.1093/jpids/piy115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/23/2018] [Indexed: 01/06/2023]
Abstract
Nasopharyngeal (NP) swabs are generally used to detect respiratory syncytial virus (RSV) in infants. However, midturbinate (MT) swabs may provide comparable results. In this study, we enrolled hospitalized infants aged <24 months with RSV and collected NP and MT swabs. The resulting viral loads measured by real-time reverse-transcription quantitative polymerase chain reaction were similar. Most parents preferred MT swabs over NP swabs.
Collapse
Affiliation(s)
| | | | | | | | - Hao Chai
- Gilead Sciences, Inc, Foster City, California
| | - Ying Guo
- Gilead Sciences, Inc, Foster City, California
| | | | | | | | | | - E Kent Korgenski
- University of Utah, Salt Lake City.,Intermountain Healthcare, Salt Lake City, Utah
| | - Seth Toback
- Gilead Sciences, Inc, Foster City, California
| | | |
Collapse
|
7
|
Schreiber S, Siegel CA, Friedenberg KA, Younes ZH, Seidler U, Bhandari BR, Wang K, Wendt E, McKevitt M, Zhao S, Sundy JS, Lee SD, Loftus EV. A Phase 2, Randomized, Placebo-Controlled Study Evaluating Matrix Metalloproteinase-9 Inhibitor, Andecaliximab, in Patients With Moderately to Severely Active Crohn's Disease. J Crohns Colitis 2018; 12:1014-1020. [PMID: 29846530 PMCID: PMC6113705 DOI: 10.1093/ecco-jcc/jjy070] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/23/2018] [Accepted: 05/27/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Matrix metalloproteinase-9 [MMP9] is implicated in the pathogenesis of Crohn's disease and may serve as a potential biomarker. A phase 2 trial was conducted to examine the efficacy and safety of the anti-MMP9 antibody andecaliximab [GS-5745] in patients with moderately to severely active Crohn's disease. METHODS Patients were randomized 1:2:2:2 to receive subcutaneous injections of placebo weekly [QW], andecaliximab 150 mg every 2 weeks [Q2W], andecaliximab 150 mg QW, or andecaliximab 300 mg QW.The co-primary study efficacy endpoints were evaluation of a clinical response, defined as liquid or very soft stool frequency and abdominal pain composite [from Patient-Reported Outcome 2] score ≤ 8 at week 8, and an endoscopic response, defined as a ≥ 50% reduction from baseline in the Simple Endoscopic Score for Crohn's Disease, following 8 weeks of treatment. RESULTS A total of 187 participants were randomized to treatment; 53 participants were randomized to each andecaliximab treatment group and 28 participants were randomized to placebo. Proportions of patients receiving andecaliximab were not different from proportions of patients receiving placebo based on clinical and endoscopic response and Crohn's disease activity index-defined remission at week 8. Rates of adverse events were comparable among the andecaliximab and placebo groups. CONCLUSIONS Eight weeks of induction treatment with 150 mg andecaliximab Q2W, 150 mg andecaliximab QW, or 300 mg andecaliximab QW in patients with Crohn's disease did not induce a clinically meaningful symptomatic or endoscopic response. Andecaliximab was well tolerated. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov NCT02405442.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Ke Wang
- Gilead Sciences, Inc., Foster City, CA, USA
| | | | | | - Sally Zhao
- Gilead Sciences, Inc., Foster City, CA, USA
| | | | | | | |
Collapse
|
8
|
Sandborn WJ, Bhandari BR, Randall C, Younes ZH, Romanczyk T, Xin Y, Wendt E, Chai H, McKevitt M, Zhao S, Sundy JS, Keshav S, Danese S. Andecaliximab [Anti-matrix Metalloproteinase-9] Induction Therapy for Ulcerative Colitis: A Randomised, Double-Blind, Placebo-Controlled, Phase 2/3 Study in Patients With Moderate to Severe Disease. J Crohns Colitis 2018; 12:1021-1029. [PMID: 29767728 PMCID: PMC6113706 DOI: 10.1093/ecco-jcc/jjy049] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 03/09/2018] [Accepted: 05/13/2018] [Indexed: 01/16/2023]
Abstract
BACKGROUND AND AIMS Matrix metalloproteinase-9 [MMP9] is implicated in the pathogenesis of ulcerative colitis [UC] via disruption of intestinal barrier integrity and function. A phase 2/3 combined trial was designed to examine the efficacy, safety, and pharmacokinetics of the anti-MMP9 antibody, andecaliximab [formerly GS-5745], in patients with moderately to severely active UC. METHODS Patients were randomised [1:1:1] to receive placebo, 150 mg andecaliximab every 2 weeks [Q2W], or 150 mg andecaliximab weekly [QW], via subcutaneous administration. The primary endpoint was endoscopy/bleeding/stool [EBS]-defined clinical remission [endoscopic subscore of 0 or 1, rectal bleeding subscore of 0, and at least a 1-point decrease from baseline in stool frequency to achieve a subscore of 0 or 1] at Week 8. The phase 2/3 trial met prespecified futility criteria and was terminated before completion. This study describes results from the 8-week induction phase. RESULTS Neither 150 mg andecaliximab Q2W or QW resulted in a significant increase vs placebo in the proportion of patients achieving EBS clinical remission at Week 8. Remission rates [95% confidence intervals] were 7.3% [2.0%-17.6%], 7.4% [2.1%-17.9%], and 1.8% [0.0%-9.6%] in the placebo, andecaliximab Q2W, and andecaliximab QW groups, respectively. Similarly, Mayo Clinic Score response, endoscopic response, and mucosal [histological] healing did not differ among groups. Rates of adverse events were comparable among andecaliximab and placebo. CONCLUSIONS Eight weeks of induction treatment with 150 mg andecaliximab in patients with UC did not induce clinical remission or response. Andecaliximab was well tolerated and pharmacokinetic properties were consistent with those previously reported.
Collapse
Affiliation(s)
- William J Sandborn
- Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA,Corresponding author: William J. Sandborn, Professor of Medicine and Adjunct Professor of Surgery; Chief, Division of Gastroenterology; Vice Chair for Clinical Operations, Department of Medicine; Director, UCSD IBD Center, 9500 Gilman Drive, MC 0956, La Jolla, CA 92093, USA. Tel.: [858] 657-5331; fax [858] 657-5022;
| | | | - Charles Randall
- Gastroenterology Research America and University of Texas, San Antonio, TX, USA
| | | | | | - Yan Xin
- Gilead Sciences, Inc., Foster City, CA, USA
| | | | - Hao Chai
- Gilead Sciences, Inc., Foster City, CA, USA
| | | | - Sally Zhao
- Gilead Sciences, Inc., Foster City, CA, USA
| | | | - Satish Keshav
- Translational Gastroenterology Unit, University of Oxford, Oxford, UK
| | - Silvio Danese
- Inflammatory Bowel Diseases Center, Humanitas Research Hospital, Rozzano, Italy
| |
Collapse
|
9
|
McKevitt M, Bacon J, Merritt R. P201 Integrating patient support groups into respiratory care pathways. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
10
|
Roberts N, Ward M, Patel I, Yorke J, Williams J, Walters R, McKevitt M, Edwards S. P114 What Skills, Experience And Training Are Need To Work In Integrated Respiratory Specialist Roles And How Can We Roll These Posts Out In The Uk? Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
11
|
Roberts N, Ward M, Patel I, Yorke J, Williams J, Walters R, McKevitt M, Edwards S. P34 What Is Integrated Care And What Is The Value Of An Integrated Respiratory Specialist? Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
12
|
Burns J, LiPuma J, Retsch-Bogart G, Bresnik M, Henig N, McKevitt M, Lewis S, Tullis E. 58 No antibiotic cross-resistance after 1 year of continuous aztreonam for inhalation solution (AZLI) in cystic fibrosis (CF) patients (pts) with chronic Burkholderia (BURK) infection. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60228-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
13
|
McCaughey G, Elborn J, McKevitt M, Tunney M. 78 Development of resistance in CF pathogens exposed to fosfomycin:tobramycin (4:1 w/w) under aerobic and anaerobic conditions. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60248-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
14
|
Oermann CM, McCoy KS, Retsch-Bogart GZ, Gibson RL, McKevitt M, Montgomery AB. Pseudomonas aeruginosa antibiotic susceptibility during long-term use of aztreonam for inhalation solution (AZLI). J Antimicrob Chemother 2011; 66:2398-404. [DOI: 10.1093/jac/dkr303] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
|
15
|
McCaughey G, Elborn J, McKevitt M, Tunney M. 100* Synergistic effects of a fosfomycin:tobramycin combination on cystic fibrosis pathogens grown aerobically and anaerobically. J Cyst Fibros 2011. [DOI: 10.1016/s1569-1993(11)60117-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
16
|
McCoy K, Retsch-Bogart G, Gibson R, Oermann C, McKevitt M, Montgomery A. Efficacy of Aztreonam Lysine for Inhalation (AZLI) in patients with cystic fibrosis and drug resistant P. aeruginosa (DRPA). J Cyst Fibros 2009. [DOI: 10.1016/s1569-1993(09)60112-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
17
|
Abstract
Phage display is a widely used method to optimize the binding characteristics of protein-ligand interactions. In addition, it has been used to clone genes from genomic and cDNA libraries based on their ligand-binding characteristics. One difficulty often encountered when expressing heterologous proteins by phage display is the toxicity of the protein on the Escherichia coli host. Previous studies have shown that heterologous protein expression can be tightly controlled using plasmids with the P(BAD) promoter of the arabinose operon of E. coli, and the araC gene, which is both a positive and negative regulator of the promoter. We constructed a set of phage display vectors that utilize the P(BAD) promoter to control the expression of proteins on the surface of the M13 bacteriophage. These vectors exhibit tightly controlled expression of proteins on the surface of the phage. In addition, the amount of protein displayed on the phage is modulated by the amount of arabinose present in the growth medium during phage propagation. This may be useful for altering the stringency of binding enrichment during phage display.
Collapse
Affiliation(s)
- W Huang
- Department of Molecular Virology & Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | | | | |
Collapse
|
18
|
Abstract
To evaluate the natural history of uncomplicated urinary tract infections in women, we observed 51 infection-prone women in a standardized fashion for a median of 9 years. During intervals when patients were not receiving antimicrobial prophylaxis, infections occurred at an average rate of 2.6 per patient-year, but the rate varied widely from patient to patient (range 0.3-7.6 episodes per year). Seventy-three percent of the observed episodes were symptomatic, with an 18:1 ratio of cystitis to pyelonephritis episodes. Infectious episodes were strikingly clustered, and rates of infection decreased in the winter months. Antimicrobial prophylaxis was highly effective in preventing acute cystitis, asymptomatic bacteriuria, and acute pyelonephritis, even when used for as long as 5 years. The proportions of infecting strains resistant in vitro to ampicillin (19%-32%) and nitrofurantoin (5%-18%) were unchanged over the 15-year observation period, while resistance to trimethoprim-sulfamethoxazole increased in the last 5 years of the study.
Collapse
Affiliation(s)
- W E Stamm
- Department of Medicine, University of Washington School of Medicine, Seattle
| | | | | | | |
Collapse
|
19
|
Wong ES, Hooton TM, Hill CC, McKevitt M, Stamm WE. Clinical and microbiological features of persistent or recurrent nongonococcal urethritis in men. J Infect Dis 1988; 158:1098-101. [PMID: 3183419 DOI: 10.1093/infdis/158.5.1098] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- E S Wong
- Department of Medicine, Harborview Medical Center, University of Washington School of Medicine, Seattle
| | | | | | | | | |
Collapse
|
20
|
Stamm WE, McKevitt M, Counts GW. Acute renal infection in women: treatment with trimethoprim-sulfamethoxazole or ampicillin for two or six weeks. A randomized trial. Ann Intern Med 1987; 106:341-5. [PMID: 3492950 DOI: 10.7326/0003-4819-106-3-341] [Citation(s) in RCA: 89] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
We compared the efficacy of orally administered ampicillin, 2 g/d, with that of trimethoprim-sulfamethoxazole, 320 mg/d-1600 mg/d, given for 2 or 6 weeks for outpatient management of acute uncomplicated renal infection in women. Of 98 women participating in the trial, 60 had renal infections with susceptible strains, complied with drug therapy, and completed 6 weeks of follow-up. Before treatment, 39 women had symptoms and signs of acute pyelonephritis; 21 had symptoms of cystitis but positive tests for antibody-coated bacteria. All 60 women had alleviation of symptoms and resolution of bacteriuria after 7 days of therapy. Subsequent recurrences occurred in 12 of 27 women given ampicillin, compared with 4 of 33 given trimethoprim-sulfamethoxazole (p = 0.008). Serotyping showed that most recurrences were reinfections with ampicillin-resistant strains. With each drug, a 2-week regimen of therapy proved as efficacious as a 6-week regimen, but the longer regimen was less well tolerated. We conclude that a 2-week treatment regimen is sufficient to manage acute pyelonephritis in outpatients and that trimethoprim-sulfamethoxazole is preferable to ampicillin therapy.
Collapse
|
21
|
Wong ES, McKevitt M, Running K, Counts GW, Turck M, Stamm WE. Management of recurrent urinary tract infections with patient-administered single-dose therapy. Ann Intern Med 1985; 102:302-7. [PMID: 3871597 DOI: 10.7326/0003-4819-102-3-302] [Citation(s) in RCA: 74] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
In a randomized crossover trial, 38 women with recurrent urinary tract infections were assigned to use either continuous prophylaxis with trimethoprim-sulfamethoxazole or intermittent self-administered therapy (single-dose trimethoprim-sulfamethoxazole taken for acute urinary symptoms). The infection rate for patients on prophylaxis was 0.2 episodes/patient-year compared with 2.2 infections/patient-year for patients on self-administered therapy (p less than 0.001). Thirty-five of thirty-eight symptomatic episodes diagnosed by patients as infection were confirmed microbiologically, and 30 of the 35 infections responded clinically and microbiologically to patient-administered therapy with single-dose trimethoprim-sulfamethoxazole. No complications were seen in the 5 patients in whom therapy failed. The annual costs of prophylaxis and self-therapy were similar ($256 and $239, respectively) and both were less expensive than conventional therapy in women having 2 or more infections per year. In selected women, self-therapy is efficacious and economical compared with conventional therapy or prophylaxis.
Collapse
|
22
|
Counts GW, Stamm WE, McKevitt M, Running K, Holmes KK, Turck M. Treatment of cystitis in women with a single dose of trimethoprim-sulfamethoxazole. Rev Infect Dis 1982; 4:484-90. [PMID: 6981166 DOI: 10.1093/clinids/4.2.484] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The efficacy of a single dose (four tablets) and of 10-day courses of trimethoprim-sulfamethoxazole (TMP-SMZ) was studied in 77 women with symptomatic cystitis and negative tests for antibody-coated bacteria. Cure rates after six weeks were 76% for single-dose therapy and 87% for 10 days of treatment. For Escherichia coli infections, cure rates after six weeks were 80% and 86%, respectively. However, 10-day treatment eliminated enteric bacilli from urethral and vaginal sites more often than did single-dose therapy. Two weeks after completion of treatment, perineal colonization was observed more often in the women who developed recurrent infections than in those who did not (P = 0.01). During these two weeks, recurrent infections were found somewhat more often in the women who had received single-dose therapy than in those who had undergone 10-day treatment (5 of 38 vs. 2 of 39; P = 0.07). With conventional courses of antibiotics, retreatment of all recurrent infections was less successful in women previously given single-dose therapy. Recurrent infections were also more frequent in women infected with bacteria other than E. coli. Both drug regimens were well tolerated. However, serious adverse reactions were fewer in patients treated with a single dose (8.5%) than in patients treated for 10 days (15%). Single-dose therapy with TMP-SMZ appears as effective as 10-day therapy in acute uncomplicated cystitis caused by E. coli.
Collapse
|
23
|
Stamm WE, Counts GW, McKevitt M, Turck M, Holmes KK. Urinary prophylaxis with trimethoprim and trimethoprim-sulfamethoxazole: efficacy, influence on the natural history of recurrent bacteriuria, and cost control. Rev Infect Dis 1982; 4:450-5. [PMID: 6981163 DOI: 10.1093/clinids/4.2.450] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Low-dose trimethoprim (TMP), trimethoprim-sulfamethoxazole (TMP-SMZ), and nitrofurantoin macrocrystals were found to be safe and effective as prophylaxis against recurrent urinary tract infections. Women given placebo had 2.8 infections per patient-year during the six-month study period, while women given TMP, TMP-SMZ, or nitrofurantoin had significantly lower infection rates (0.015 per patient-year). The effect of prophylaxis appeared to be limited to the period when the agents were taken. Only one patient had a TMP-resistant coliform isolated from cultures obtained during prophylaxis and six months afterwards. The sole factor associated with the recurrence of infection after prophylaxis was a history of three or more infections in the year preceding prophylaxis. Thirty-one of the 60 women in the trial were monitored for a mean of 6.1 years before and 3.2 years after they entered the study. Analysis of infection rates indicated that about half these women were experiencing an infection cluster when they entered the study and that the prestudy baseline infection rate correlated with the poststudy rate. Thus, prophylaxis did not appear to exert a long-term effect on the baseline infection rate. Urinary prophylaxis generally appears to become cost-effective when the baseline infection rate exceeds two per patient-year.
Collapse
|
24
|
|
25
|
Abstract
Antimicrobial prophylaxis prevents recurrent urinary tract infections in susceptible women, but its cost effectiveness has not been studied. In a recent placebo-controlled trial of urinary prophylaxis, we also assessed cost effectiveness using a decision analysis model. In our hospital the direct cost of 1 patient year of urinary prophylaxis approximates the cost of treating one episode of cystitis. In women with a baseline infection rate of three per patient year, the annual cost of prophylaxis ($85.82) was less than treatment of acute episodes of infection ($392.30). Sensitivity analyses showed that in women with three infections per year, prophylaxis became cost effective when charges per episode exceeded $42.00. In women with frequent episodes of cystitis, prophylaxis will be cost effective in most practice settings.
Collapse
|
26
|
Stamm WE, Counts GW, Wagner KF, Martin D, Gregory D, McKevitt M, Turck M, Holmes KK. Antimicrobial prophylaxis of recurrent urinary tract infections: a double-blind, placebo-controlled trial. Ann Intern Med 1980; 92:770-5. [PMID: 6992677 DOI: 10.7326/0003-4819-92-6-770] [Citation(s) in RCA: 120] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
To study once-daily antimicrobial prophylaxis of urinary tract infections, we gave trimethoprim-sulfamethoxazole (40 mg/200 mg), trimethoprim (100 mg), nitrofurantoin macrocrystals (100 mg), or placebo to 60 women for 6 months. During prophylaxis, infections per patient year were comparable in the groups receiving trimethoprim (0.0), nitrofurantoin (0.14), or trimethoprim-sulfamethoxazole (0.15) and occurred less frequently than in patients receiving placebo (2.8; P less than 0.001, placebo versus each drug regimen). The effectiveness of prophylaxis was limited to the 6 months that antimicrobials were given, and infections were more likely to develop after prophylaxis in women who had three or more infections in the year before prophylaxis (P less than 0.005). Further, women whose preprophylaxis infection was positive for antibody-coated bacteria were more likely to have same-strain relapse when infections recurred (P = 0.001). Emergence of trimethoprim-resistant Escherichia coli was rare, but non-E. coli infections occurred more often after prophylaxis (P less than 0.05). Prophylaxis with these drugs is effective, well tolerated, and did not produce emergence of resistant E. coli but may predispose to non-E. coli urinary tract infections after its discontinuation.
Collapse
|