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Paclitaxel monotherapy shows modest activity in relapsed small cell lung cancerNab-paclitaxel shows similar results to paclitaxel for lung cancer

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Key Takeaway
Consider paclitaxel monotherapy as a salvage option for relapsed SCLC, but watch for ILD exacerbation.

This meta-analysis evaluated the efficacy and safety of paclitaxel monotherapy or nab-paclitaxel monotherapy in patients with relapsed small cell lung cancer (SCLC). The analysis included a total of 631 patients. The primary outcome was the 3-month progression-free survival (PFS) rate, and secondary outcomes included 6-month overall survival (OS), objective response rate (ORR), and disease-control rate (DCR).

The authors reported a 3-month PFS rate of 39% and a 6-month OS rate of 46%. The ORR was 16%, and the DCR was 51%. Safety data indicated that neutropenia occurred in 18% of patients, peripheral neuropathy in 2%, and exacerbation of interstitial lung disease (ILD) in 17%. The efficacy and safety profiles were similar between paclitaxel and nab-paclitaxel.

Key limitations include substantial heterogeneity across studies, which reduces the certainty of the pooled estimates. The authors note that paclitaxel-based regimens are a pragmatic salvage option for relapsed SCLC, but caution is needed in patients with ILD. Clinicians should consider these findings as hypothesis-generating rather than definitive.

When patients face relapsed small cell lung cancer, finding a manageable treatment is a top priority. A review of data from 631 patients looked at two specific options: paclitaxel and nab-paclitaxel. These are both types of chemotherapy used to slow the growth of the cancer.

The results showed that both treatments performed similarly. Patients receiving either version saw a 39% progression-free survival rate at three months. Additionally, about 46% of patients were still alive at six months. Both drugs also showed similar rates for controlling the disease and shrinking tumors.

Safety was another area of focus. While both treatments were generally well-tolerated, some side effects occurred, such as low white blood cell counts or nerve damage. Doctors should be especially careful with patients who have certain lung conditions like interstitial lung disease. Because the data had a lot of variation between different studies, these results are a helpful guide rather than a definitive rule for every patient.

What this means for you:
Nab-paclitaxel and paclitaxel offer similar survival rates and safety profiles for relapsed small cell lung cancer.

Common questions

How effective are these two types of treatment?

Both paclitaxel and nab-paclitaxel showed similar results. Patients had a 39% progression-free survival rate at three months and a 46% overall survival rate at six months. About 51% of patients saw their disease stay controlled during the study period.

Are there significant side effects with these drugs?

Both treatments had a generally favorable safety profile. Some patients experienced low white blood cell counts (18%), nerve damage (2%), or worsening of lung conditions (17%). Because both drugs performed similarly in safety, talk to your doctor about which is best for you.

Is one drug better than the other for relapsed cancer?

The data shows that efficacy and safety were similar between paclitaxel and nab-paclitaxel. While both are practical options for relapsed small cell lung cancer, doctors suggest extra caution for patients with specific lung conditions like interstitial lung disease.

Study Details

Study typeMeta analysis
Sample sizen = 631
EvidenceLevel 1
Follow-up3.0 mo
PublishedJul 2026
View Original Abstract ↓
BACKGROUND/AIM: Relapsed small cell lung cancer (SCLC) treatment has limited evidence-based options. Solvent-based paclitaxel (PTX) and albumin-bound nanoparticle paclitaxel (nab-PTX) are commonly prescribed though never comprehensively quantified. PATIENTS AND METHODS: A systematic review and single-arm meta-analysis was conducted (PROSPERO Registration: CRD42024592475). PubMed, Web of Science, Cochrane Library, and EMBASE were searched for interventional or observational studies reporting PTX or nab-PTX monotherapy in relapsed SCLC. Primary outcomes were the pooled 3-month progression-free survival rate (PFS), 6-month overall survival rate (OS), objective response rate (ORR), and disease-control rate (DCR). Random-effects models generated pooled estimates; prespecified subgroup analyses compared Asian Euro-American cohorts, and PTX nab-PTX treatment. RESULTS: Fifteen studies (11 retrospective and 4 prospective) comprising 631 patients met the eligibility criteria of the study. Pooled efficacy estimates were: 3-month PFS 39% [95% confidence interval (CI)=28-50%, I=84%], 6-month OS 46% (95%CI=32-61%, I=91%), ORR 16% (95%CI=12-21%, I=51%) and DCR 51% (95%CI=41-61%, I=83%). Grade 3 or higher toxicities were infrequent - neutropenia 18% (95%CI=11-25%, I=89%) and peripheral neuropathy 2% (95%CI=0-3%, I=0%). Among 45 patients with pre-existing interstitial lung disease (ILD), treatment-related ILD exacerbations were 17% (95%CI=6-28%, I=0%). Asian cohorts demonstrated greater neutropenia (26% . 5%) than Euro-American cohorts. Efficacy and safety were similar between PTX and nab-PTX monotherapy. CONCLUSION: Despite substantial heterogeneity, paclitaxel-based regimens demonstrated modest but clinically meaningful activity with generally favorable safety profile in relapsed SCLC, highlighting them as a pragmatic salvage option. In patients with ILD, their use warrants caution due to the risk of ILD exacerbation.
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