Prognostic Value of KELIM Score and Inflammatory Markers in Ovarian Cancer

June 24, 2026 updated by: Aya Ahmed Nasser

Integrative Prognostic Value of Inflammatory Markers and KELIM Score in Ovarian Cancer Patients Treated With Neoadjuvant Chemotherapy.

This is a retrospective observational study to evaluate the integrative prognostic value of inflammatory markers, specifically the neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR), alongside the CA-125 Elimination rate constant K (KELIM) score in advanced ovarian cancer patients. The study includes patients with advanced serous ovarian cancer (stage III or IV) who received neoadjuvant platinum-based chemotherapy followed by interval debulking surgery at Sohag University Hospital and Sohag Cancer Center between 2022 and 2025. The primary objective is to evaluate how well these biomarkers predict survival outcomes, including progression-free survival (PFS) and overall survival (OS). Additionally, the study aims to assess their significance in predicting the success of complete versus incomplete cytoreductive surgery following neoadjuvant chemotherapy.

Study Overview

Status

Active, not recruiting

Conditions

Study Type

Observational

Enrollment (Estimated)

80

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
      • Sohag, Egypt
        • Sohag university hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

The study population consists of female patients diagnosed with advanced epithelial ovarian cancer (specifically stage III or IV high-grade serous ovarian carcinoma) who were managed and followed up at Sohag University Hospital and Sohag Cancer Center, Egypt. Eligible participants are those who underwent a standard treatment protocol comprising platinum-based neoadjuvant chemotherapy followed by interval cytoreductive surgery between January 2022 and December 2025, and whose medical records contain comprehensive baseline hematological and tumor marker data.

Description

Inclusion Criteria:

  • Female patients aged \ge 18 years old., Histologically confirmed advanced epithelial ovarian cancer (High-Grade Serous Ovarian Carcinoma), Stage III or IV.

Patients who received platinum-based neoadjuvant chemotherapy (NACT) followed by interval debulking surgery (IDS) at Sohag University Hospital or Sohag Cancer Center between 2022 and 2025.

Available complete medical records, including pre-treatment baseline CBC (for NLR and PLR calculation) and longitudinal CA-125 levels (for KELIM score estimation).

Exclusion Criteria:

Patients with non-epithelial ovarian tumors (e.g., germ cell tumors, sex cord-stromal tumors).

Patients who underwent primary debulking surgery (PDS) before receiving chemotherapy.

Patients with concurrent active malignancies or a history of other cancers within the past 5 years.

Patients with active systemic inflammatory diseases, hematological disorders, or severe infections at baseline that could interfere with baseline inflammatory markers (NLR/PLR).

Incomplete or missing clinical, surgical, or follow-up data.

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Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Ovarian Cancer Cohort
Advanced serous ovarian cancer patients treated with neoadjuvant chemotherapy followed by interval debulking surgery.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression-Free Survival (PFS)
Time Frame: From the date of diagnosis up to 4 years (assessed using retrospective medical records of patients treated between 2022 and 2025).
Evaluation of the prognostic value of baseline neutrophil lymphocyte ratio, platelet lymphocyte ratio, and CA 125 KELIM score in predicting progression-free survival in locally advanced ovarian cancer patients receiving platinum-based neoadjuvant chemotherapy followed by interval debulking surgery. PFS is calculated as the time from the date of diagnosis to the date of first documented clinical or radiological disease progression, or death from any cause.
From the date of diagnosis up to 4 years (assessed using retrospective medical records of patients treated between 2022 and 2025).
Overall Survival (OS)
Time Frame: From the date of diagnosis up to 4 years (assessed using retrospective medical records of patients treated between 2022 and 2025).
Evaluation of the prognostic value of baseline neutrophil lymphocyte ratio, platelet lymphocyte ratio, and CA 125 KELIM score in predicting overall survival in locally advanced ovarian cancer patients receiving platinum-based neoadjuvant chemotherapy followed by interval debulking surgery. OS is calculated as the time from the date of diagnosis to the date of death from any cause.
From the date of diagnosis up to 4 years (assessed using retrospective medical records of patients treated between 2022 and 2025).

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Completeness of Interval Cytoreductive Surgery
Time Frame: At the time of interval debulking surgery (typically performed after 3 to 6 cycles of neoadjuvant chemotherapy).
Evaluation of the significance of baseline neutrophil lymphocyte ratio, platelet lymphocyte ratio, and CA 125 KELIM score in predicting surgical outcomes. The success of the interval debulking surgery will be categorized based on the presence of residual tumor into complete cytoreduction (no macroscopically visible tumor) versus incomplete cytoreduction following neoadjuvant chemotherapy.
At the time of interval debulking surgery (typically performed after 3 to 6 cycles of neoadjuvant chemotherapy).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Aya Ahmed Nasser

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 1, 2026

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

February 1, 2027

Study Registration Dates

First Submitted

June 24, 2026

First Submitted That Met QC Criteria

June 24, 2026

First Posted (Actual)

July 1, 2026

Study Record Updates

Last Update Posted (Actual)

July 1, 2026

Last Update Submitted That Met QC Criteria

June 24, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • Soh-Med-26-6-3MS

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

The data used in this study belong to the medical records of Sohag University Hospital and Sohag Cancer Center and contain sensitive patient clinical information. Due to institutional policies and strict patient confidentiality regulations, individual participant data cannot be made publicly available or shared outside the participating centers.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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