Despite pembrolizumab discontinuation, both patients maintained durable systemic disease control. These cases emphasize the importance of recognizing uncommon radiological patterns such as the atoll sign in patients receiving ICIs, highlighting the need for vigilance even after prolonged therapy and underscoring the potential for sustained oncologic benefit despite treatment discontinuation.

Herein, we report the first documented case of phenotypic conversion to SCLC in a patient with advanced pulmonary sarcomatoid carcinoma (PSC) who received pemetrexed, carboplatin, and camrelizumab only, with no targeted agents administered. TP53 and RET mutations may be implicated in this phenotypic transition. This case provides new insights into the biological mechanism underlying the evolution of PSC to SCLC.

Platinum/PEM/Pembro may be a therapeutic option for TTF-1-negative non-sq NSCLC with good PS and adenocarcinoma histology, although careful management of irAE is required.

P=N/A, N=200, Recruiting, Bristol-Myers Squibb

P2, N=35, Recruiting, University of California, Irvine | Trial primary completion date: Jun 2026 --> Oct 2026

P1/2, N=50, Not yet recruiting, Centre Leon Berard

P2, N=26, Not yet recruiting, Northwell Health

P1/2, N=100, Completed, Fondazione Policlinico Universitario Agostino Gemelli IRCCS | Active, not recruiting --> Completed

In patients with dMMR or MSI-H locally advanced colorectal cancer, neoadjuvant toripalimab plus celecoxib significantly increased the proportion of patients attaining pathological complete response compared with toripalimab monotherapy, with a similar safety profile. These findings support further investigation of this combination strategy in larger phase 3 trials.

Together, HAIC combined with camrelizumab and apatinib demonstrated favorable efficacy and acceptable safety in patients with advanced HCC. This combination regimen may represent a promising therapeutic strategy for advanced HCC.

After three cycles of neoadjuvant carboplatin, pemetrexed, and pembrolizumab, computed tomography (CT) scan revealed a significant response. Incorporating a POLE evaluation could improve the integrated decision-making process for patients with NSCLC in the perioperative setting. Prospective studies are warranted to validate this observation.

Treatment with pembrolizumab-belzutifan led to significantly higher disease-free survival, with a greater risk of grade 3 or higher toxic effects, than treatment with pembrolizumab monotherapy after nephrectomy in participants with clear-cell renal-cell carcinoma at increased risk for recurrence. (Funded by Merck Sharp and Dohme, a subsidiary of Merck [Rahway, NJ]; LITESPARK-022 ClinicalTrials.gov number, NCT05239728.).