Status:

NOT_YET_RECRUITING

PCSK9 Inhibitor and PD-1 Inhibitor Combined With Neoadjuvant Chemoradiotherapy for pMMR/MSS Locally Advanced Rectal Cancer

Lead Sponsor:

Guangdong Provincial People's Hospital

Conditions:

Locally Advanced Rectal Cancer (LARC)

Eligibility:

All Genders

18-75 years

Phase:

PHASE2

Brief Summary

This is a single-center, open-label, single-arm clinical study aimed at conducting a preliminary evaluation of the efficacy and safety of combining PCSK9 inhibitors and PD-1 inhibitors (dual inhibitor...

Detailed Description

This study aims to evaluate the complete response (CR) rate of PCSK9 inhibitor and PD-1 inhibitor combination therapy (dual inhibitors) in conjunction with neoadjuvant chemoradiotherapy for patients w...

Eligibility Criteria

Inclusion

  • Age between 18 and 75 years, regardless of gender;
  • Histologically confirmed pMMR/MSS rectal adenocarcinoma, with clinical staging of cT3/T4 or cN+, and tumor located ≤12 cm from the anal verge;
  • No distant metastasis;
  • ECOG performance status of 0-1;
  • Baseline hematological and biochemical parameters meet the following criteria: neutrophils ≥1.5×10\^9/L, hemoglobin ≥90 g/L, platelets ≥100×10\^9/L, ALT/AST ≤2.5 ULN, creatinine ≤1 ULN;
  • Good compliance and willingness to sign an informed consent form.

Exclusion

  • History of allergies to PCSK9 monoclonal antibody, PD-1 monoclonal antibody, capecitabine, or oxaliplatin;
  • Preoperative pathological diagnosis of non-pMMR/MSS rectal adenocarcinoma;
  • Use of other long-term lipid-lowering drugs leading to conditions such as hypolipidemia;
  • Pregnant or breastfeeding women;
  • History of other malignancies within the past 5 years;
  • Previous history of anti-tumor treatments, including radiotherapy, chemotherapy, immune checkpoint inhibitors, T-cell related therapies, etc.;
  • History of severe neurological or psychiatric disorders (e.g., schizophrenia, dementia, or epilepsy);
  • Current severe cardiovascular disease (heart failure or arrhythmia), renal insufficiency, or liver dysfunction; Note: Whether the patient can tolerate the specific treatment or measures should be assessed by a cardiologist based on the patient's condition.
  • Acute myocardial infarction or ischemic stroke within 6 months prior to enrollment;
  • Presence of uncontrolled infections requiring systemic treatment;
  • Active autoimmune diseases or immunodeficiencies, a history of organ transplantation, or systemic use of immunosuppressive agents;
  • Known history of HIV infection (e.g., HIV 1-2 antibody positive), active syphilis, or active pulmonary tuberculosis;
  • Active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection during screening (e.g., HBsAg positive, HBV DNA positive, HCV RNA positive, or anti-HCV antibody positive);
  • Known allergy to any component of the treatment;
  • Investigator's judgment that other factors exist which may cause early termination of the trial, such as severe disease (including psychiatric disorders), alcohol abuse, drug use, or social or familial factors affecting patient safety or compliance;
  • History of hypocholesterolemia (total cholesterol \[TC\] \<3.6 mmol/L or \<140 mg/dL, low-density lipoprotein cholesterol \[LDL-C\] \<1.8 mmol/L or \<70 mg/dL, high-density lipoprotein cholesterol \[HDL-C\] \<1.0 mmol/L \[male\] or \<1.3 mmol/L \[female\]), hypolipidemia (triglycerides \[TG\] \<0.5 mmol/L or \<45 mg/dL), or a family history of these conditions.

Key Trial Info

Start Date :

May 1 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

February 28 2030

Estimated Enrollment :

30 Patients enrolled

Trial Details

Trial ID

NCT06933251

Start Date

May 1 2025

End Date

February 28 2030

Last Update

April 18 2025

Active Locations (1)

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1

No. 106, Zhongshan 2nd Road, Yuexiu District, Guangzhou

Guangzhou, Guangdong, China