Clinical trial Recruiting at 1 site Observational Ages 18 to 80 Women only

Vitamin D Status and Outcomes in Locally Advanced Cervical Cancer treated with chemoradiotherapy

Official title: Pretreatment Vitamin D Status and Clinical Outcomes in Patients With Locally Advanced Cervical Cancer Undergoing Definitive Chemoradiotherapy

Run by University of Kragujevac · NCT07743918 · Data updated 2026-11-12

This study tests whether pretreatment vitamin D levels can predict how well women with locally advanced cervical cancer respond to standard chemoradiotherapy.

More Locally Advanced Cervical Cancer trials

Quick facts

Study typeObservational
Ages18 Years to 80 Years
SexWomen only
Enrollment100 (estimated)
SponsorUniversity of Kragujevac
Academic / other
Drugs / interventionschemotherapy, Radiation
Locations1 site (Kragujevac, Šumadija)
StatusRecruiting
StartedJanuary 1, 2026
Main results expectedJanuary 10, 2028
Study endsSeptember 1, 2034
Registry record updatedAugust 4, 2026
Trial IDNCT07743918 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Women aged 18-80 with histologically confirmed locally advanced cervical cancer (FIGO 2018 IIB-IVA) planned for definitive chemoradiotherapy.

Probably not a fit

Patients with concurrent conditions or treatments that affect vitamin D metabolism or those not receiving standard chemoradiotherapy may not experience the potential predictive benefits.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a prospective observational cohort study enrolling women with locally advanced cervical cancer (FIGO IIB-IVA) who will receive standard definitive chemoradiotherapy. Pretreatment vitamin D is measured in serum and cervical lavage, and patients are followed to assess treatment response with pelvic MRI about five months after therapy and to monitor acute toxicity during treatment. The goal is to identify whether vitamin D status is associated with treatment response or toxicity, which could help tailor future care. All participants receive the same standard treatment including external beam radiotherapy, brachytherapy, and weekly cisplatin. The study is conducted at the University Clinical Center Kragujevac and led by the University of Kragujevac.

Why it matters

Potential benefit: If vitamin D status proves predictive, it could guide personalized treatment planning and supportive care for better outcomes.

How similar studies have gone: Prior research suggests biochemical markers can relate to radiotherapy response, but the predictive value of pretreatment vitamin D in this setting is not well established, making this investigation relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Female patients aged 18 to 80 years.
* Histopathologically confirmed cervical cancer.
* Locally advanced disease, FIGO 2018 stage IIB to IVA.
* Eastern Cooperative Oncology Group performance status 0-1.
* Planned treatment with definitive concurrent chemoradiotherapy.
* Signed informed consent.
* Ability to comply with study procedures and follow-up visits.

Exclusion Criteria:

* Age under 18 years.
* Pregnancy or lactation.
* Previous or synchronous diagnosis of another pelvic or abdominal malignancy.
* Previous chemotherapy.
* Previous radiotherapy.
* Previous treatment with immune checkpoint inhibitors.
* Current or recent vitamin D supplementation.
* Interrupted oncological treatment.
* Failure to attend scheduled follow-up visits.
* Incomplete medical documentation.

Where it's running

  • University Clinical Center Kragujevac
    Kragujevac, Šumadija, Serbia
    Recruiting

Study contacts

  • Principal investigator: Marija Živković Radojević, MD, PhD, Radiation Oncologist — Faculty of Medical Sciences, University of Kragujevac, Serbia, University Clinical Centre Kragujevac, Center for radiation oncology
  • Study coordinator: Marija Živković Radojević, MD, PhD, Radiation Oncologist
  • Email: makizivkovicmarija@gmail.com
  • Phone: +381658384450

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.