Novel Biomarkers and Postoperative Kidney Injury in Radical Nephrectomy

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorPeking University First Hospital

About this trial

The incidence of acute kidney injury (AKI) after radical nephrectomy exceeds 40%. Currently, the KDIGO criteria are the recognized diagnostic standard for AKI. These criteria primarily use serum creatinine and urine output as key indicators, but both parameters have certain limitations, such as delayed response, insensitivity, and inaccuracy. This study aims to simultaneously monitor perioperative novel renal damaging, stressful, and functional biomarkers in patients undergoing radical nephrectomy, and to investigate their predictive value for AKI and postoperative 1-year chronic kidney disease (CKD).

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age ≥18 years;

Scheduled to undergo unilateral radical nephrectomy.

Disqualifiers

Solitary kidney;

Preoperative diagnosis of chronic kidney disease stages G4 or G5 (GFR <30 mL/min/1.73m²);

Tumor invasion of the vena cava requiring thrombectomy;

Other conditions deemed by the investigator as unsuitable for participation in this study.

Trial population

Targeting patients undergoing radical nephrectomy for renal cell carcinoma

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

60 Participants
are grouped into 2 trial groups
Group A: AKI group/CKD group
Group B: non-AKI group/non-CKD group

Trial outcomes

Primary outcomes

1

The urinary [TIMP-2]×[IGFBP-7], urinary NGAL, urinary KIM-1, serum cystatin C and their combinations to predict postoperative AKI occurring within 7 days.

Novel biomarkers above were collected at the end of surgery, and at postoperative 1h, 6h, and 20h. AKI diagnosed according to 2012 KDIGO criteria (occurring within 7 days after surgery).

Time frame
Up to 7 days after surgery.

Secondary outcomes

1

The urinary [TIMP-2]×[IGFBP-7], urinary NGAL, urinary KIM-1, serum cystatin C and their combinations to predict new onset/worsening CKD occurring within 1 year after surgery.

Novel biomarkers above were collected before and at the end of surgery, and at postoperative 1h, 6h, and 20h. CKD diagnosed according to 2024 KDIGO-CKD criteria (occurring within 1 year after surgery).

Time frame
Up to 1 year after surgery
2

The urinary [TIMP-2]×[IGFBP-7], urinary NGAL, urinary KIM-1, serum cystatin C combined with clinically important risk factors to predict postoperative AKI occurring within 7 days after surgery.

Novel biomarkers above were collected before and at the end of surgery, and at postoperative 1h, 6h, and 20h. AKI diagnosed according to 2012 KDIGO criteria (occurring within 7 days after surgery).

Time frame
Up to 7 days after surgery.
3

The postoperative urinary [TIMP-2]×[IGFBP-7], urinary NGAL, urinary KIM-1, serum cystatin C combined with clinically important risk factors to predict postoperative the new onset/worsening CKD occurring within 1 year after surgery.

Novel biomarkers above were collected before and at the end of surgery, and at postoperative 1h, 6h, and 20h. CKD diagnosed according to 2024 KDIGO-CKD criteria (occurring within 1 year after surgery).

Time frame
Up to 1 year after surgery.

Other outcomes

Sponsors and contacts

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