Patient-Directed Antimicrobial Duration in Acute Uncomplicated Pyelonephritis

Pyelonephritis Acute Clinical Trial

Official title:

Personalized Antibiotic Treatment in the Emergency Department: Panther Trial

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06127160
• Other study ID #: 202303721
• Status: Not yet recruiting
• Phase: Phase 4
• Start date: June 2024
• Est. completion date: January 31, 2025

Study information

• Verified date: April 2024
• Source: University of Iowa
• Contact: Brett Faine, PharmD
• Phone: +1 319 356 2577
• Email: brett-faine[@]uiowa.edu
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This pilot study will randomize 40 female patients with acute uncomplicated pyelonephritis to receive standard duration of therapy versus patient-directed antimicrobial duration (PDAD). The primary objectives of this pilot trial are to determine the feasibility and safety of conducting a full-scale multi-center randomized controlled trial.

Description:

Following informed consent, patients will be randomized to receive 10 days of cephalexin or PDAD (minimum of 3 days of cephalexin followed by placebo once patient reports 24 hours of symptom resolution). Patients will be evaluated at day 1 in-person, then daily using a mobile cellphone application to assess acute uncomplicated pyelonephritis (AUP) symptoms and quality of life (QOL). Urine samples will be collected at in-person visits at day 1, 3 weeks, and 4 weeks. Study feasibility will be assessed through day 90.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 40
• Est. completion date: January 31, 2025
• Est. primary completion date: December 31, 2024
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Female
• Age group: 18 Years to 55 Years

Eligibility

Inclusion:

• Females between 18 and 55 years of age
• Diagnosis of acute uncomplicated pyelonephritis
• Can be discharged home on oral antimicrobial treatment
• Ability to provide written informed consent in English or Spanish

Exclusion:

• Took antibiotics in the prior 48 hours
• Insulin-dependent diabetes
• End-stage liver disease
• If the patient reports a penicillin allergy, and is deemed to be high-risk using the penicillin allergy clinical decision rule (PEN-FAST)
• Serious allergy (e.g., angioedema, anaphylaxis) to the study medication or a similarly reported allergy to a cephalosporin
• Known or identified hydronephrosis, obstruction, or abscess identified by emergency department ultrasound
• Presence of a kidney stone
• Pregnancy or lactation
• Renal dysfunction (defined as creatinine clearance of less than 30 mL/min)
• Renal transplantation
• Complicated pyelonephritis (defined anatomical or functional abnormality of the urinary tract that predisposes to infection)
• Need for additional antimicrobial therapy for a coexisting infection
• Human immunodeficiency virus (HIV) infection, with either a recent (in the past 6 months) acquired immune deficiency syndrome-defining condition or a cluster of differentiation-4 (CD-4+) T lymphocyte count <200/mm^3

Related Conditions & MeSH terms

• Pyelonephritis
• Pyelonephritis Acute

Intervention

Drug:
• Cephalexin
Cephalexin 1000 mg by mouth 3 times daily for 10 days
• Cephalexin or placebo
Cephalexin 1000 mg by mouth 3 times daily for a minimum of 3 days, once participant reports symptom resolution for 24 hours they will switch to placebo for remainder of 10 days of treatment.

Locations

Country	Name	City	State
n/a

Sponsors (2)

Lead Sponsor	Collaborator
Brett A Faine	University of California, Los Angeles

References & Publications (20)

Bonsu BK, Shuler L, Sawicki L, Dorst P, Cohen DM. Susceptibility of recent bacterial isolates to cefdinir and selected antibiotics among children with urinary tract infections. Acad Emerg Med. 2006 Jan;13(1):76-81. doi: 10.1197/j.aem.2005.07.032. Epub 2005 Dec 19. — View Citation

Brown KA, Khanafer N, Daneman N, Fisman DN. Meta-analysis of antibiotics and the risk of community-associated Clostridium difficile infection. Antimicrob Agents Chemother. 2013 May;57(5):2326-32. doi: 10.1128/AAC.02176-12. Epub 2013 Mar 11. — View Citation

Flores-Mireles AL, Walker JN, Caparon M, Hultgren SJ. Urinary tract infections: epidemiology, mechanisms of infection and treatment options. Nat Rev Microbiol. 2015 May;13(5):269-84. doi: 10.1038/nrmicro3432. Epub 2015 Apr 8. — View Citation

Foxman B. The epidemiology of urinary tract infection. Nat Rev Urol. 2010 Dec;7(12):653-60. doi: 10.1038/nrurol.2010.190. — View Citation

Foxman B. Urinary tract infection syndromes: occurrence, recurrence, bacteriology, risk factors, and disease burden. Infect Dis Clin North Am. 2014 Mar;28(1):1-13. doi: 10.1016/j.idc.2013.09.003. Epub 2013 Dec 8. — View Citation

Fung-Tomc JC, Huczko E, Stickle T, Minassian B, Kolek B, Denbleyker K, Bonner D, Kessler R. Antibacterial activities of cefprozil compared with those of 13 oral cephems and 3 macrolides. Antimicrob Agents Chemother. 1995 Feb;39(2):533-8. doi: 10.1128/AAC.39.2.533. — View Citation

Guay DR. Pharmacodynamics and pharmacokinetics of cefdinir, an oral extended spectrum cephalosporin. Pediatr Infect Dis J. 2000 Dec;19(12 Suppl):S141-6. doi: 10.1097/00006454-200012001-00002. — View Citation

Gupta K, Hooton TM, Naber KG, Wullt B, Colgan R, Miller LG, Moran GJ, Nicolle LE, Raz R, Schaeffer AJ, Soper DE; Infectious Diseases Society of America; European Society for Microbiology and Infectious Diseases. International clinical practice guidelines for the treatment of acute uncomplicated cystitis and pyelonephritis in women: A 2010 update by the Infectious Diseases Society of America and the European Society for Microbiology and Infectious Diseases. Clin Infect Dis. 2011 Mar 1;52(5):e103-20. doi: 10.1093/cid/ciq257. — View Citation

Hicks LA, Bartoces MG, Roberts RM, Suda KJ, Hunkler RJ, Taylor TH Jr, Schrag SJ. US outpatient antibiotic prescribing variation according to geography, patient population, and provider specialty in 2011. Clin Infect Dis. 2015 May 1;60(9):1308-16. doi: 10.1093/cid/civ076. Epub 2015 Mar 5. — View Citation

Kanan M, Atif S, Mohammed F, Balahmar Y, Adawi Y, AlSaleem R, Farhan A, Alghoribi M, Mohammed S, Alshanbari R, Fahad M, Kallab R, Mohammed R, Alassaf D, Hazza A. A Systematic Review on the Clinical Pharmacokinetics of Cephalexin in Healthy and Diseased Populations. Antibiotics (Basel). 2023 Sep 3;12(9):1402. doi: 10.3390/antibiotics12091402. — View Citation

Leigh AP, Nemeth MA, Keyserling CH, Hotary LH, Tack KJ. Cefdinir versus cefaclor in the treatment of uncomplicated urinary tract infection. Clin Ther. 2000 Jul;22(7):818-25. doi: 10.1016/s0149-2918(00)80054-5. — View Citation

Low M, Neuberger A, Hooton TM, Green MS, Raz R, Balicer RD, Almog R. Association between urinary community-acquired fluoroquinolone-resistant Escherichia coli and neighbourhood antibiotic consumption: a population-based case-control study. Lancet Infect Dis. 2019 Apr;19(4):419-428. doi: 10.1016/S1473-3099(18)30676-5. Epub 2019 Mar 4. — View Citation

MacGregor RR, Graziani AL. Oral administration of antibiotics: a rational alternative to the parenteral route. Clin Infect Dis. 1997 Mar;24(3):457-67. doi: 10.1093/clinids/24.3.457. — View Citation

May L, Cosgrove S, L'Archeveque M, Talan DA, Payne P, Jordan J, Rothman RE. A call to action for antimicrobial stewardship in the emergency department: approaches and strategies. Ann Emerg Med. 2013 Jul;62(1):69-77.e2. doi: 10.1016/j.annemergmed.2012.09.002. Epub 2012 Nov 2. — View Citation

McCusker ME, Harris AD, Perencevich E, Roghmann MC. Fluoroquinolone use and Clostridium difficile-associated diarrhea. Emerg Infect Dis. 2003 Jun;9(6):730-3. doi: 10.3201/eid0906.020385. — View Citation

Mogle BT, Beccari MV, Steele JM, Fazili T, Kufel WD. Clinical considerations for oral beta-lactams as step-down therapy for Enterobacteriaceae bloodstream infections. Expert Opin Pharmacother. 2019 Jun;20(8):903-907. doi: 10.1080/14656566.2019.1594774. Epub 2019 Mar 25. No abstract available. — View Citation

Sader HS, Biedenbach DJ, Streit JM, Jones RN. Cefdinir activity against contemporary North American isolates from community-acquired urinary tract infections. Int J Antimicrob Agents. 2005 Jan;25(1):89-92. doi: 10.1016/j.ijantimicag.2004.07.006. — View Citation

Talan DA, Takhar SS, Krishnadasan A, Abrahamian FM, Mower WR, Moran GJ; EMERGEncy ID Net Study Group. Fluoroquinolone-Resistant and Extended-Spectrum beta-Lactamase-Producing Escherichia coli Infections in Patients with Pyelonephritis, United States(1). Emerg Infect Dis. 2016 Sep;22(9):1594-603. doi: 10.3201/eid2209.160148. — View Citation

Talan DA, Takhar SS, Krishnadasan A, Mower WR, Pallin DJ, Garg M, Femling J, Rothman RE, Moore JC, Jones AE, Lovecchio F, Jui J, Steele MT, Stubbs AM, Chiang WK, Moran GJ. Emergence of Extended-Spectrum beta-Lactamase Urinary Tract Infections Among Hospitalized Emergency Department Patients in the United States. Ann Emerg Med. 2021 Jan;77(1):32-43. doi: 10.1016/j.annemergmed.2020.08.022. Epub 2020 Oct 31. — View Citation

Taylor RA, Moore CL, Cheung KH, Brandt C. Predicting urinary tract infections in the emergency department with machine learning. PLoS One. 2018 Mar 7;13(3):e0194085. doi: 10.1371/journal.pone.0194085. eCollection 2018. — View Citation

* Note: There are 20 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Feasibility of completing all clinical trial activities and follow-up	Percentage of participants that complete all study activities and follow-up through 90 days	90 days
Secondary	Sustained clinical cure	Participant does not require any additional antimicrobial treatment and they do not have a recurrence of symptoms after initial clinical improvement.	30 days
Secondary	Sustained microbiological cure	The bacterial pathogen found at trial entry is sustained to fewer than 1000 CFU/mL.	30 days
Secondary	Clinical and microbiological cure rates after the end of treatment	Participant does not require any additional antimicrobial treatment and they do not have a recurrence of symptoms after initial clinical improvement AND the bacterial pathogen found at trial entry is reduced to fewer than 1000 CFU/mL.	15-21 days
Secondary	Adverse event and side effect event rates		30 days
Secondary	Additional health care visits with the chief complaint of urinary tract infection		30 days
Secondary	Time to return to normal activities		30 days

External Links

•   12. Food and Drug Administration. FDA updates warnings for fluoroquinolone antibiotics on risks of mental health and low blood sugar adverse reactions