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CompletedNCT06299215PYELO-OBSUpdated Feb 20, 2026

Factors and Prognosis of Obstructive Pyelonephritis Patients

An observational study in Pyelonephritis and Prognostic, sponsored by Assistance Publique - Hôpitaux de Paris. Completed at 1 site in France. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2026-02-20.

Sponsored by Assistance Publique - Hôpitaux de Paris · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
575
Ages
18 Years to 100 Years
Sex
All
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Study summary

Acute obstructive pyelonephritis is a condition with a high risk of complications and may require admission to the intensive care unit.

Most of the available data on this condition comes from small, retrospective, single-centre series.

To date, no large-scale study has examined the factors associated with the prognosis of patients admitted to intensive care for acute obstructive pyelonephritis.

The aim of this study is to describe the population and prognosis of patients admitted to the intensive care unit for the management of acute obstructive pyelonephritis, and to identify factors associated with a poor prognosis in these patients.

Read the detailed description

The retrospective and multicenter study consists of a retrospective and pseudonymous collection of data from medical reports of patients treated, over the period 2015-2022, in each intensive care unit agreeing to participate, .

Investigators from each participating center will be responsible for screening on all hospitalized patients over the period 2015-2022. Patients who have been hospitalized for the management of acute obstructive pyelonephritis will be included, in the absence of non-inclusion criteria.

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Conditions studied

  • Pyelonephritis
  • Prognostic

Keywords

  • acute kidney injury
  • renal remplacement therapy
  • hemodialysis
  • acute respiratory distress
  • hemodynamic failure
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In context

Pyelonephritis

79 studies on the registry are indexed under Pyelonephritis; 12 are open to participants now.

This study's enrollment of 575 is above the median of 153 across 15 observational studies indexed under Pyelonephritis.

Browse Pyelonephritis studies →

Lead sponsor

Assistance Publique - Hôpitaux de Paris is the lead sponsor of 3,592 studies on the registry; 1,033 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients meeting the eligibility criteria over the period 2015-2022 will be included in the study.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients over 18 years of age
  • Hospitalized in intensive care for management of acute obstructive pyelonephritis
  • Patients affiliated to a Social Security System

Exclusion criteria

Exclusion Criteria:

  • Pregnancy
  • Opposition to data use
  • Persons under legal protection (curatorship, guardianship), legal safeguards
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
575 participants (actual)
Patient registry
No
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What researchers measure

Primary outcomes

  1. The primary endpoint will be a combined endpoint of death, and/or stage 3 AKI ( KDIGO classification), and/or non-recovery of renal function.

    Time frame: up to 30 days after admission to intensive care

Secondary outcomes

  1. Death

    Time frame: up to 30 days after admission to intensive care

  2. Stage 3 Acute kidney injury (KDIGO classification)

    Time frame: up to 30 days after admission to intensive care

  3. failure to recover renal function

    defined as creatinine levels greater than 150% of baseline value

    Time frame: up to 30 days after admission to intensive care .

  4. the incidence of acute renal failure defined by KDIGO 1

    Time frame: up to 30 days after admission to intensive care

  5. the incidence of acute renal failure defined by KDIGO 2 and 3

    Time frame: up to 30 days after admission to intensive care

  6. the incidence of Renal replacement therapy

    Time frame: up to 30 days after admission to intensive care

  7. the incidence of non-recovery of renal fuction

    Time frame: up to 30 days after admission to intensive care

  8. The number of days alive without Renal replacement therapy

    Time frame: up to 30 days after admission to intensive care

  9. The number of days alive without catecholamines

    Time frame: up to 30 days after admission to intensive care

  10. The number of days alive without antibiotics

    Time frame: up to 30 days after admission to intensive care

  11. The number of days alive without

    Time frame: up to 30 days after admission to intensive care

  12. Death rate

    Time frame: up to 30 days after admission to intensive care

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Study locations

1 site
  • Hospital Saint Louis
    Paris, 75010, France
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References and documents

Publications

  • Kakinoki H, Tobu S, Kakinoki Y, Udo K, Uozumi J, Noguchi M. Risk Factors for Uroseptic Shock in Patients with Urolithiasis-Related Acute Pyelonephritis. Urol Int. 2018;100(1):37-42. doi: 10.1159/000481801. Epub 2017 Oct 24. PubMed 29065405 ↗
  • Liang X, Huang J, Xing M, He L, Zhu X, Weng Y, Guo Q, Zou W. Risk factors and outcomes of urosepsis in patients with calculous pyonephrosis receiving surgical intervention: a single-center retrospective study. BMC Anesthesiol. 2019 May 1;19(1):61. doi: 10.1186/s12871-019-0729-3. PubMed 31039739 ↗
  • Yamamoto Y, Fujita K, Nakazawa S, Hayashi T, Tanigawa G, Imamura R, Hosomi M, Wada D, Fujimi S, Yamaguchi S. Clinical characteristics and risk factors for septic shock in patients receiving emergency drainage for acute pyelonephritis with upper urinary tract calculi. BMC Urol. 2012 Mar 13;12:4. doi: 10.1186/1471-2490-12-4. PubMed 22413829 ↗
  • Baboudjian M, Gondran-Tellier B, Di Bisceglie M, Abdallah R, Michel F, Sichez PC, Al-Balushi K, Akiki A, Gaillet S, Delaporte V, Karsenty G, Lechevallier E, Guieu R, Boissier R. The prognostic value of serum procalcitonin in acute obstructive pyelonephritis. World J Urol. 2021 May;39(5):1583-1589. doi: 10.1007/s00345-020-03353-2. Epub 2020 Jul 15. PubMed 32671605 ↗
  • Lee SH, Choi T, Choi J, Yoo KH. Differences between Risk Factors for Sepsis and Septic Shock in Obstructive Urolithiasis. J Korean Med Sci. 2020 Nov 9;35(43):e359. doi: 10.3346/jkms.2020.35.e359. PubMed 33169555 ↗
  • Yamamichi F, Shigemura K, Kitagawa K, Fujisawa M. Comparison between non-septic and septic cases in stone-related obstructive acute pyelonephritis and risk factors for septic shock: A multi-center retrospective study. J Infect Chemother. 2018 Nov;24(11):902-906. doi: 10.1016/j.jiac.2018.08.002. Epub 2018 Aug 30. PubMed 30174285 ↗
  • Tambo M, Okegawa T, Shishido T, Higashihara E, Nutahara K. Predictors of septic shock in obstructive acute pyelonephritis. World J Urol. 2014 Jun;32(3):803-11. doi: 10.1007/s00345-013-1166-4. Epub 2013 Sep 15. PubMed 24037335 ↗
  • Srougi V, Moscardi PR, Marchini GS, Berjeaut RH, Torricelli FC, Mesquita JLB, Srougi M, Mazzucchi E. Septic Shock Following Surgical Decompression of Obstructing Ureteral Stones: A Prospective Analysis. J Endourol. 2018 May;32(5):446-450. doi: 10.1089/end.2017.0896. Epub 2018 Mar 20. PubMed 29439607 ↗
  • Kamei J, Sugihara T, Yasunaga H, Matsui H, Sasabuchi Y, Fujimura T, Homma Y, Kume H. Impact of early ureteral drainage on mortality in obstructive pyelonephritis with urolithiasis: an analysis of the Japanese National Database. World J Urol. 2023 May;41(5):1365-1371. doi: 10.1007/s00345-023-04375-2. Epub 2023 Mar 22. PubMed 36947175 ↗
  • Kellum JA, Zarbock A, Nadim MK. What endpoints should be used for clinical studies in acute kidney injury? Intensive Care Med. 2017 Jun;43(6):901-903. doi: 10.1007/s00134-017-4732-1. Epub 2017 Mar 2. No abstract available. PubMed 28255614 ↗
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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from May 2024 to primary completion in Nov 2025, 18 months.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 9, 2024
First posted
Mar 7, 2024
StartActual
May 13, 2024
Primary completionActual
Nov 18, 2025
CompletionActual
Nov 18, 2025
Last update
Feb 20, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06299215
Responsible party
Sponsor
First posted
Mar 7, 2024
Start date
May 13, 2024
Primary completion
Nov 18, 2025
Completion
Nov 18, 2025
Last update
Feb 20, 2026

Study contacts

Maxime Dr COUTROT, MD
principal investigator · Hopital saint Louis-APHP

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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