Clinical trialPhase 3Kidney cancer

Sunitinib Alone or After Nephrectomy for Patients with Metastatic Renal Cell Carcinoma: Is There Still a Role for Cytoreductive Nephrectomy?

Eur Urol · 2021450 patients
Méjean A, Ravaud A, Thezenas S, Chevreau C, Bensalah K, Geoffrois L, et al. Eur Urol. 2021. 80:417-424
Study type
Clinical trial
Study name
CARMENA
Phase
Phase 3
Design
Randomised non-inferiority trial (updated overall survival analysis)
Sample size
450 patients
Source
Eur Urol · 2021
Trial registration
NCT00930033

In plain words

In people whose kidney cancer had already spread at diagnosis and who needed drug treatment, starting the drug straight away without removing the kidney was no worse for survival than surgery followed by the drug. In some patients at lower risk, surgery may still be helpful.

Key results

HR 0.97
Overall survival (all patients)
0.79–1.19; median 19.8 months (sunitinib alone) vs 15.6 months (nephrectomy + sunitinib)
31.2 vs 17.6 months
Two or more IMDC risk factors
Favouring sunitinib alone; HR 0.65; P=0.03 (post hoc analysis)
31.4 vs 25.2 months
One IMDC risk factor
Favouring nephrectomy + sunitinib, not significant; HR 1.30; P=0.2

Treatment arms and regimens

1Nephrectomy followed by sunitinib

Cytoreductive nephrectomy, then sunitinib 50 mg orally daily in cycles of 28 days on and 14 days off (every 6 weeks), until disease progression or unacceptable toxicity (226 patients).

2Sunitinib alone

Sunitinib 50 mg orally daily in cycles of 28 days on and 14 days off (every 6 weeks), without nephrectomy (224 patients).

Source of the regimen details: Abstract of the original CARMENA paper (NEJM 2018; PMID 29860937) and ClinicalTrials.gov NCT00930033

Doses are given for the information of specialists, as in this study’s protocol, and are not a prescription. Every drug must be prescribed by the treating physician for the individual patient.

Study population

Patients with biopsy-confirmed metastatic clear-cell renal-cell carcinoma at diagnosis who were suitable candidates for nephrectomy in the urologist's judgement; intermediate or poor risk by the MSKCC model (a randomisation stratification factor); ECOG performance status 0 to 1; no prior systemic therapy; brain metastases only if treated and stable. 450 patients were enrolled between 2009 and 2017.

Endpoints

Primary endpoint: overall survival (updated data cut-off October 2018).

Safety and side effects

Safety data are not reported in the abstract.

Clinical significance and place in guidelines

This updated analysis confirmed the main CARMENA result and underpins guideline recommendations against immediate cytoreductive nephrectomy in poor-risk patients and in most intermediate-risk patients who need systemic therapy.

Limitations

The trial was conducted in the era of anti-VEGF drugs, before immunotherapy combinations; subgroup analyses were post hoc.

This summary was prepared by the editorial team from the published paper; the original paper is the final reference. Read the original abstract on PubMed.