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Cadonilimab plus chemotherapy shows 72.5% ORR in 51 patients with cervical cancerNew Cervical Cancer Drug Shrinks Tumors In Early Real World Tests

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Key Takeaway
Consider cadonilimab plus chemotherapy for cervical cancer; validate preliminary efficacy and safety in larger trials.

This prospective observational cohort study included 51 consecutive patients with cervical cancer treated in a real-world setting. The intervention consisted of cadonilimab administered for at least two cycles in combination with chemotherapy, with or without bevacizumab. No formal comparator group was reported.

Efficacy outcomes included an objective response rate (ORR) of 72.5%, comprising 15 complete responses and 22 partial responses. The disease control rate (DCR) was 90.2% at the first tumor evaluation and 37.3% at the data cutoff, which occurred in December 2025 with a median follow-up of 11.0 months. Median progression-free survival (mPFS) was 7.0 months (IQR: 4.0-10.0).

Safety analysis using CTCAE v5.0 revealed hematologic toxicities in 74.5% of patients. Immune-related adverse events (irAEs) included liver function abnormalities in 39.2% and skin and subcutaneous tissue disorders in 23.5%. The safety profile was described as manageable, with no reported serious adverse events or discontinuations.

Predictive factors identified included squamous cell carcinoma histology (OR = 4.471, 95% CI = 1.037–21.699, P = 0.045) and baseline IL-6 levels ≤5.4 pg/mL (OR = 4.494, 95% CI = 1.089–18.541, P = 0.038) associated with higher odds of objective response. Baseline SII ≥660 (OR = 8.742, 95% CI = 1.372–55.648, P = 0.022) and CD4+PD-1+ >42.10% (OR = 18.121, 95% CI = 1.368–239.948, P = 0.028) were independent risk factors for immune-related dermal toxicity, whereas IL-17 >21.4 pg/mL (OR = 0.042, 95% CI = 0.003–0.542, P = 0.015) was a protective factor.

Limitations include the preliminary nature of the report, the small sample size of the first 51 patients, and the lack of a control group. These findings require validation in larger, prospective studies with longer follow-up before definitive clinical recommendations can be made.

Imagine a woman waiting for her next scan. She hopes the tumor is smaller than before. For many with cervical cancer, this wait is filled with anxiety.

Standard treatments often stop working over time. Patients need new options that work better.

Why Cervical Cancer Treatment Needs Change

Cervical cancer affects millions of women worldwide. It starts in the cells lining the cervix. Sometimes the cancer spreads to other parts of the body.

Current therapies include surgery, radiation, and chemotherapy. But some tumors grow back quickly. Doctors need tools that stop this cycle.

How This New Drug Works Inside Cells

This new medicine is called cadonilimab. It acts like a double key for the immune system.

It targets two specific points on immune cells. Think of it as unlocking two doors at once. This helps the body fight the cancer more effectively.

The drug blocks signals that tell cancer cells to hide. It wakes up the immune system to attack.

What The Early Results Show Patients

Researchers looked at 51 patients in a real-world setting. They tracked how the drug worked over time.

The results were encouraging. More than 70% of patients saw their tumors shrink. This is a high response rate for this type of cancer.

This does not mean the drug is ready for clinics today.

Many patients kept the cancer under control for months. The median time before the cancer grew was seven months.

Side Effects And Safety Concerns

No treatment comes without risks. Some side effects appeared in this group.

Blood cell counts dropped in many patients. This is common with chemotherapy combinations.

Skin issues and liver changes also occurred. Doctors monitored these closely to keep patients safe.

When Might This Treatment Be Available

The study was small and early in the process. It included patients from June 2022 to August 2025.

Biomarkers helped predict who would respond best. Low levels of a protein called IL-6 helped.

High levels of another marker increased skin risks. These findings need to be checked in bigger groups.

More trials are needed to confirm these results. Approval takes time to ensure safety for everyone.

Doctors will watch for long-term effects. They will also look for better ways to combine this drug.

Research moves slowly to protect patients. But this step shows real promise for the future.

Women diagnosed with cervical cancer should talk to their doctors. They can ask if this treatment fits their specific case.

The road ahead involves more testing and approval steps. But the early signs are very hopeful.

Study Details

Study typeCohort
EvidenceLevel 3
PublishedApr 2026
View Original Abstract ↓
ObjectiveTo evaluate the real-world efficacy and safety of cadonilimab (a bispecific antibody targeting PD-1 and CTLA-4) in combination with chemotherapy with or without bevacizumab for cervical cancer and to identify potential biomarkers.MethodsThis preliminary report analyzes the first 51 consecutive patients from a protocol-driven observational cohort initiating cadonilimab (≥2 cycles) between June 2022 and August 2025. The treatment regimens were: cadonilimab + chemotherapy + bevacizumab (n=22), cadonilimab + chemotherapy (n=24), or cadonilimab alone (n=5). Standardized data collection included clinicopathological variables, peripheral blood biomarkers, and protocol-defined tumor assessments (RECIST v1.1 every 6 weeks). Interim efficacy endpoints (objective response rate [ORR], disease control rate [DCR], median progression-free survival [mPFS]) and safety (CTCAE v5.0) were evaluated, with multivariate analyses to identify predictive factors.Interim resultsThe median follow-up was 11.0 months. At the first tumor evaluation timepoint after completing two treatment cycles, 15 patients achieved complete response (CR), 22 patients achieved partial response (PR), and 9 patients achieved stable disease (SD), with an ORR of 72.5% and a DCR of 90.2%. At the data cutoff date (December 2025), the median PFS was 7.0 months (IQR: 4.0-10.0) and the DCR was 37.3% (19/51). Multivariable analysis revealed that squamous cell carcinoma histology (OR = 4.471, 95% CI = 1.037–21.699; P = 0.045) and baseline IL-6 levels ≤5.4 pg/mL (OR = 4.494, 95% CI = 1.089–18.541; P = 0.038) were independently associated with higher odds of achieving an objective response. Regarding safety, hematologic toxicities were the most common (74.5%), which may be related to the chemotherapeutic agents used in the combination therapy. Immune-related adverse events (irAEs) included liver function abnormalities in 39.2% of patients and skin and subcutaneous tissue disorders in 23.5% of patients. Analysis of immune-related dermal toxicity identified that a baseline Systemic Immune-Inflammation Index (SII) ≥660 (OR = 8.742, 95% CI = 1.372–55.648, P = 0.022) and CD4+PD-1+ >42.10% (OR = 18.121, 95% CI = 1.368–239.948, P = 0.028) were independent risk factors, whereas IL-17 >21.4 pg/mL (OR = 0.042, 95% CI = 0.003–0.542, P = 0.015) was an independent protective factor.ConclusionsIn this real-world cohort, cadonilimab showed promising early efficacy and a manageable safety profile in cervical cancer. Identified biomarkers for response and immune-related dermal toxicity require validation in larger, prospective studies with longer follow-up.
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