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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT06284343
Other study ID # 6414
Secondary ID
Status Not yet recruiting
Phase
First received
Last updated
Start date April 1, 2024
Est. completion date September 30, 2026

Study information

Verified date February 2024
Source Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Cancer patients are burdened by an increased risk of venous thromboembolism (VTE), which has a significant impact on morbidity and mortality. Existing Risk Prediction Models (RPMs), including the widely accepted Khorana Risk Score (KRS), have some limitations when used in certain tumor site populations, such as gynecological cancers. Notably, gynecological patients exhibit a variable risk of VTE based on their specific tumor sites, with ovarian cancer representing the highest risk. Moreover, currently available RPMs lack validation in a broad gynecological population and may fail to effectively stratify VTE risk. GynCAT is a prospective cohort study that will be conducted on female patients with gynecologic malignancies scheduled for systemic antineoplastic treatment. During the screening phase, symptomatic VTE will be excluded, and KRS will be assessed. Pharmacological thromboprophylaxis will be considered and prescribed at clinical judgement, for patients with a KRS score of 3 or higher. Clinical, hematological, biochemical, coagulation, and genetic variables will be collected. Follow-up will last for the entire duration of the antineoplastic treatment line, and VTE events, bleeding events, and mortality will be recorded. The primary objective is the development and validation of an RPM for VTE in gynecologic cancer patients undergoing systemic antineoplastic treatment. Secondary objectives are evaluation of the predictive value of the identified model, comparing it with existing general oncology RPMs; assessment of its performance in predicting mortality; evaluation of VTE incidence in patients with KRS≥3 receiving thromboprophylaxis; identification of risk factors for bleeding in this patient population. The sample size calculation is based on an estimated VTE incidence of 5% over a mean follow-up of 12 months. Hence, a sample size of at least 1,200 patients in the derivation cohort is considered sufficient for the determination of a risk prediction model incorporating up to six predictor variables. A split-sample method will be used, with two-thirds of the study participants randomly assigned to the model derivation cohort (n=1,200) and one-third (n=600) to an independent validation cohort. The total number of patients recruited in the study will thus be of 1,800. A competing risk survival analysis with Fine & Gray model will be used to study the association between prognostic variables and VTE occurrence, considering death as a competitive risk. The RPM will be identified through a bootstrap approach to reduce the risk of overfitting. Discrimination power of the RPM will be assessed using time-dependent Receiving Operating Characteristic curve, and model calibration will be evaluated graphically and with the calculation of relative calibration slopes. In conclusion, this prospective cohort study aims to overcome the limitations of current RPMs in gynecologic cancer patients, improving the accuracy of VTE risk stratification in this population.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 1800
Est. completion date September 30, 2026
Est. primary completion date September 30, 2026
Accepts healthy volunteers No
Gender Female
Age group 18 Years and older
Eligibility Inclusion Criteria: - Female sex; - Diagnosis of gynecologic neoplasm (ovarian, tubal, uterine, cervical, vaginal, vulvar neoplasm); - Planned new line of systemic antineoplastic treatment; - Age of 18 years or older; - Accordance of Informed Consent. Exclusion Criteria: - Pregnant or breastfeeding women; - Indication to receive therapeutic dose anticoagulant therapy (e.g., atrial fibrillation, mechanical heart valve); - Diagnosis of symptomatic VTE at the time of screening for enrollment.

Study Design


Intervention

Drug:
Anticoagulant
Prescription of pharmacological thromboprophylaxis according to current clinical practice and international guidelines recommendation

Locations

Country Name City State
Italy Fondazione Policlinico Universitario A. Gemelli IRCCS Rome

Sponsors (2)

Lead Sponsor Collaborator
Fondazione Policlinico Universitario Agostino Gemelli IRCCS Fondazione Umberto Veronesi

Country where clinical trial is conducted

Italy, 

Outcome

Type Measure Description Time frame Safety issue
Primary Venous thromboembolism Venous Thromboembolism (VTE) diagnosis will be assigned in case of objective confirmation by venous duplex ultrasonography and/or contrast enhanced CT and/or MRI and/or ventilation/perfusion SPECT.
In case of death during follow-up, clinical documentation and/or autopsy findings, if available, will be reviewed to assess for the presence of a possible diagnosis of fatal pulmonary embolism.
VTE events will be independently judged by an external committee, constituted by Angiology and Radiology experts, blinded to patients' clinical history and laboratory parameters. Incidentally detected VTE events will be considered as events, provided their eligibility by the aforementioned external committee.
Follow-up will continue until one of the following censoring events will occur: • EpPatients will be evaluated with one in-person medical visit at enrollment, followed by one telephone visit and one in-person examination at 6 and 12 months, respectively.
Secondary Bleeding After acquisition and review of the clinical documentation related to a hemorrhagic event, bleeding will be assigned if requirements for major or clinically relevant nonmajor bleeding are met, as defined by the International Society on Thrombosis and Haemostasis (ISTH) Follow-up will continue until one of the following censoring events will occur: • EpPatients will be evaluated with one in-person medical visit at enrollment, followed by one telephone visit and one in-person examination at 6 and 12 months, respectively.
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