Clinical trial

Direct decompressive surgical resection in the treatment of spinal cord compression caused by metastatic cancer: a randomised trial

Lancet · 2005101 patients (50 surgery followed by radiotherapy, 51 radiotherapy alone)
Patchell RA, Tibbs PA, Regine WF, et al. Lancet. 2005. 366:643-648
Study type
Clinical trial
Design
Randomised, multicentre, unblinded trial; stopped early after an interim analysis according to a prespecified stopping rule
Sample size
101 patients (50 surgery followed by radiotherapy, 51 radiotherapy alone)
Source
Lancet · 2005

In plain words

When cancer reaches the spine and presses on the spinal cord, a person may lose the ability to walk. In this study, patients who first had surgery to take the pressure off the spinal cord and then had radiotherapy were much more often able to walk, and for much longer, than patients who had radiotherapy alone. Surgery is not suitable for everyone, and the treatment team decides based on each patient's situation.

Key results

84% vs 57%
Ability to walk after treatment
42 of 50 vs 29 of 51; odds ratio 6.2 (95% CI: 2.0 to 19.8); P=0.001
122 vs 13 days
Median duration of retained ability to walk
P=0.003
62% vs 19%
Regained ability to walk among the 32 patients unable to walk at entry
10 of 16 vs 3 of 16; P=0.01
Significantly reduced with surgery
Need for corticosteroids and opioid analgesics

Treatment arms and regimens

1Decompressive surgery + radiotherapy

Direct decompressive surgical resection followed by radiotherapy 30 Gy in 10 fractions of 3 Gy.

2Radiotherapy alone

Radiotherapy 30 Gy in 10 fractions of 3 Gy.

Details of corticosteroid administration and surgical technique in the full text of the paper.

Source of the regimen details: Abstract of the paper (radiotherapy 10 fractions of 3 Gy in both groups); details of corticosteroids and surgery in the full text of the paper

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 spinal cord compression caused by metastatic cancer; 123 patients were assessed for eligibility and 101 were randomised. 32 patients were unable to walk at entry. Detailed inclusion and exclusion criteria are in the full text of the paper.

Endpoints

Primary endpoint: ability to walk.

Secondary endpoints: urinary continence, muscle strength and functional status, need for corticosteroids and opioid analgesics, and length of survival. All analyses were by intention to treat.

Safety and side effects

The abstract does not report surgical complication data; safety details are in the full text of the paper.

Clinical significance and place in guidelines

This trial is the main evidence for the superiority of decompressive surgery followed by radiotherapy over radiotherapy alone in selected patients with metastatic spinal cord compression. The NICE guideline (NG234, 2023) recommends that surgery aimed at stopping or reversing neurological decline be done as soon as possible after the onset of neurological symptoms in suitable patients, with the decision made by a multidisciplinary team.

Limitations

Small sample size (101 patients) and early stopping after an interim analysis (which can overstate the effect size); no blinding; patients were selected by specific criteria (details in the full text) and the results should not be extended to all patients with spinal cord compression.

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.