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Androgen deprivation therapy is associated with an OR 1.34 for acute kidney injuryAndrogen deprivation therapy linked to higher risk of kidney injury

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Key Takeaway
Note that ADT is associated with higher AKI risk (OR 1.34), while orchiectomy shows a lower risk compared to GnRH agonists.

This meta-analysis evaluated the relationship between various forms of androgen deprivation therapy (ADT) and the incidence of acute kidney injury (AKI) in a large population of 72,980 patients with prostate cancer. The study aimed to quantify the risks associated with different modalities of hormonal intervention, specifically comparing ADT to non-ADT control groups and comparing different types of ADT against one another.

The primary analysis focused on the association between ADT and AKI. The results indicated that patients receiving ADT were significantly associated with AKI occurrence, reporting an odds ratio (OR) of 1.34 (95% CI 1.29-1.40; p < 0.001). This finding suggests a statistically significant increase in the likelihood of AKI in patients undergoing androgen deprivation.

Further investigation into specific modalities revealed that GnRH agonists were associated with an increased risk of AKI, showing an OR of 1.49 (95% CI 1.02-2.17; p = 0.038). In contrast, the study found that orchiectomy was not associated with AKI, with an OR of 1.1 (95% CI 0.85-1.42; p = 0.488). These results suggest that the specific method of androgen deprivation may influence the risk profile for renal complications.

When comparing different modalities of androgen deprivation, the data showed a negative association with AKI for GnRH agonist ADT compared to other ADT modalities, yielding an OR of 0.77 (95% CI 0.61-0.98; p = 0.035). Conversely, patients who underwent orchiectomy showed a lower AKI rate compared to those receiving GnRH agonist therapy, with an OR of 0.77 (95% CI 0.66-0.91; p = 0.001). These findings highlight a significant difference in renal outcomes between orchiectomy and GnRH agonist-based therapies.

Safety and tolerability data, including specific adverse event rates, serious adverse events, or discontinuation rates, were not reported in the synthesis. The study utilized the GRADE framework for evaluation, but a specific grade of certainty was not provided in the source data.

Several methodological limitations were noted, including the observational nature of the underlying evidence and limitations related to the synthesis of effect estimates that were reported using different statistical approaches. Because the source data is observational, the results indicate an association rather than a definitive causal link between ADT and AKI.

Clinically, these results suggest that while ADT is associated with increased AKI risk, the risk profile may vary depending on the specific intervention chosen. The significant difference between orchiectomy and GnRH agonist therapy suggests that clinicians may need to consider the specific modality of androgen deprivation when managing patients with a high risk of renal complications. However, the observational nature of the data means these findings should be integrated with clinical judgment and patient-specific risk factors. Questions remain regarding the specific mechanisms driving these associations and the long-term renal outcomes for patients on different ADT regimens.

How this fits prior evidence

How this fits prior evidence: This meta-analysis addresses a gap in understanding the renal complications associated with androgen deprivation therapy (ADT) in prostate cancer. While previous evidence confirmed that apalutamide plus ADT improves pathological response and metastasis-free survival in high-risk prostate cancer, this study provides specific data on the risk of acute kidney injury (AKI) associated with different ADT modalities, specifically highlighting the differences between GnRH agonists and orchiectomy.

Managing prostate cancer often involves treatments that lower testosterone levels, a process known as androgen deprivation therapy (ADT). While these treatments are vital for managing the cancer, patients and doctors need to be aware of how these medications might affect other parts of the body, such as the kidneys. This research looks specifically at the link between these hormone treatments and a condition called acute kidney injury (AKI), which is a sudden episode of kidney damage or failure.

To understand this link, researchers conducted a meta-analysis, which is a large-scale review of existing data. They looked at information from a massive group of over 72,000 patients. The goal was to see if patients receiving androgen deprivation therapy were more likely to experience kidney issues compared to those who did not receive it. They also looked at specific types of treatment, such as GnRH agonists and surgical procedures like orchiectomies.

The findings showed a significant link between androgen deprivation therapy and the occurrence of acute kidney injury. Specifically, patients receiving this treatment were more likely to experience kidney issues than those who did not. When looking at specific methods, the study found that GnRH agonists were associated with an increased risk of kidney injury. However, the data showed a different trend when comparing different types of treatment. Patients who underwent an orchiectomy (a surgical procedure) showed a lower rate of kidney injury compared to those who received GnRH agonist therapy.

It is important to understand that these results come from observational data. This means the researchers observed patterns in existing records rather than conducting a controlled experiment. Because of this, the study shows a link between the treatments and kidney issues, but it does not prove that the medication directly caused the damage. Additionally, the study notes that the data was gathered using different statistical methods, which can sometimes make it harder to draw firm conclusions.

For patients currently undergoing treatment for prostate cancer, these findings do not mean that the treatment is unsafe or should be stopped. Instead, it highlights the importance of regular monitoring. Doctors can use this information to keep a closer eye on kidney function during treatment. Because the risk varies depending on the specific type of therapy used, patients should have open conversations with their medical team about which specific treatment is best for their individual health needs.

What this means for you:
Some prostate cancer treatments are linked to higher kidney injury risk, but results vary by treatment type.

Study Details

Study typeMeta analysis
Sample sizen = 72,980
EvidenceLevel 1
PublishedSep 2026
View Original Abstract ↓
PURPOSE: Androgen deprivation therapy (ADT) has been associated with increased cardiovascular and renal risks in prostate cancer patients. We performed a systematic review and meta-analysis of the currently available evidence to evaluate the rates of acute kidney injury (AKI) in prostate cancer patients under ADT. MATERIALS AND METHODS: PubMed, Embase, and the Cochrane Central Register of Controlled Trials were searched from inception to October 2024. Eligible observational studies comparing prostate cancer patients receiving ADT with those not receiving ADT were included. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated using a random-effects model. Heterogeneity was assessed using I², τ², and 95% prediction intervals. Risk of bias and certainty of evidence were evaluated using the Newcastle-Ottawa Scale and GRADE framework, respectively. Statistical analyses were performed using R software version 4.3.1, and the study was reported according to PRISMA and MOOSE recommendations. RESULTS: Four studies involving 72,980 patients were included. ADT was significantly associated with AKI occurrence when compared with the non-ADT control group (OR 1.34; 95% CI 1.29-1.40; p < 0.001; I2 = 68%). In a subgroup analysis, GnRH agonists demonstrated positive association with AKI risk (OR 1.49; 95% CI 1.02-2.17; p = 0.038; I2 83.1%). In contrast, orchiectomy was not associated with AKI (OR 1.1; 95% CI 0.85-1.42; p = 0.488; I2 = 0%). GnRH agonist ADT, compared to other ADT modalities, demonstrated negative association with AKI (OR 0.77; 95% CI 0.61-0.98; p = 0.035; I2 = 0%). The analysis of orchiectomy against GnRH agonist therapy suggests lower AKI rate in orchiectomized patients (OR 0.77; 95% CI 0.66-0.91; p = 0.001; I2 = 0%). CONCLUSION: ADT was associated with higher odds of AKI among patients with prostate cancer. The association was particularly evident among patients receiving GnRH agonist-based therapy. However, the findings should be interpreted in light of the observational nature of the available evidence and the methodological limitations related to the synthesis of effect estimates reported using different statistical approaches.
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