NCT07436663

Brief Summary

Background: Breast cancer is the most frequently diagnosed malignancy among women worldwide and a major cause of morbidity and mortality. Anthracycline-based chemotherapy, particularly doxorubicin, remains a cornerstone of treatment; however, its clinical utility is limited by dose-dependent cardiotoxicity that can lead to irreversible cardiac dysfunction and heart failure. The search for effective cardioprotective interventions is therefore a key priority in cardio-oncology. Aim: This study aims to compare the efficacy of sodium-glucose cotransporter 2 (SGLT2) inhibitors and dipeptidyl peptidase-4 (DPP-4) inhibitors in preventing doxorubicin-induced cardiotoxicity in Egyptian women with breast cancer. Methods: A prospective, randomized, controlled clinical trial will be conducted at Oncology Hospital of Tanta University. Eligible adult female patients with histologically confirmed breast cancer scheduled to receive anthracycline-containing chemotherapy will be randomized into three groups: (1) control (standard care), (2) SGLT2 inhibitor group (dapagliflozin 10-25 mg daily), and (3) DPP-4 inhibitor group (sitagliptin 50-100 mg daily). Treatment will start five days before the first chemotherapy cycle and continue for six months, with follow-up for an additional six months. Cardiac function will be assessed by echocardiography (LVEF and GLS) and biomarkers (Cardiac Troponin T, and NT-proBNP). The primary endpoint is the incidence of cardiotoxicity defined by a ≥10% decline in LVEF to \<50% or a \>15% relative decline in GLS accompanied by biomarker elevation. Expected Outcomes: It is anticipated that both SGLT2 and DPP-4 inhibitors will reduce the incidence and severity of doxorubicin-induced cardiotoxicity, with SGLT2 inhibitors expected to demonstrate superior cardioprotective efficacy. Findings from this study may support the integration of cardioprotective antidiabetic agents into oncology care pathways to improve the cardiac outcomes and overall survival of breast cancer patients.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
150

participants targeted

Target at P50-P75 for phase_4 breast-cancer

Timeline
18mo left

Started Feb 2026

Shorter than P25 for phase_4 breast-cancer

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress17%
Feb 2026Dec 2027

First Submitted

Initial submission to the registry

November 21, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

February 1, 2026

Completed
26 days until next milestone

First Posted

Study publicly available on registry

February 27, 2026

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2027

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

February 27, 2026

Status Verified

February 1, 2026

Enrollment Period

1.7 years

First QC Date

November 21, 2025

Last Update Submit

February 25, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Percentage of participants experiencing cardiotoxicity

    Cardiotoxicity will be defined as the occurrence of any of the following during the study period: A decline in left ventricular ejection fraction (LVEF) ≥ 10% from baseline resulting in an LVEF \< 50%, as measured by echocardiography, or A relative reduction in global longitudinal strain (GLS) \> 15% from baseline, as assessed by speckle-tracking echocardiography. Unit of Measure: Percentage of participants experiencing cardiotoxicity (%)

    Within 3 months from initiation of therapy.

Secondary Outcomes (6)

  • Percentage Change in Left Ventricular Ejection Fraction (LVEF)

    3 months

  • Percentage Change in Global Longitudinal Strain (GLS)

    6 months

  • Time to cardiotoxicity and HF hospitalization through 6 months.

    6 months

  • Change in serum cardiac biomarker levels e.g., troponin

    3 months

  • Change in serum cardiac biomarker levels (e.g., NT-proBNP)

    3 months

  • +1 more secondary outcomes

Study Arms (3)

Arm A (Control)

PLACEBO COMPARATOR

Usual care without prophylactic cardioprotective agent (guideline directed initiation permitted if clinically indicated post randomization; recorded and adjusted for).

Other: Standard Care (in control arm)

Arm B (SGLT2i)

ACTIVE COMPARATOR

Dapagliflozin 10 mg orally once daily (dose may increase to 25 mg if tolerated after Cycle 1) starting ≥5 days before first DOX dose and continued for 3 months.

Drug: Dapagliflozin (5-10 mg daily) - SGLT2 Inhibitor Therapy

Arm C (DPP 4i)

ACTIVE COMPARATOR

Sitagliptin 100 mg orally once daily (50 mg if eGFR 30-45 mL/min/1.73m²) starting ≥5 days before first DOX dose and continued for 3 months.

Drug: Sitagliptin (DPP4 inhibitor)

Interventions

Dapagliflozin 10 mg orally once daily (dose may increase to 25 mg if tolerated after Cycle 1) starting ≥5 days before first DOX dose and continued for 3 months.

Arm B (SGLT2i)

Sitagliptin 100 mg orally once daily (50 mg if eGFR 30-45 mL/min/1.73m²) starting ≥5 days before first DOX dose and continued for 3 months.

Arm C (DPP 4i)

Usual care without prophylactic cardioprotective agent (guideline directed initiation permitted if clinically indicated post randomization; recorded and adjusted for).

Arm A (Control)

Eligibility Criteria

Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Female, ≥18 years, Egyptian nationality.
  • Breast cancer (any stage) with planned anthracycline containing chemotherapy (intended cumulative DOX ≥240 mg/m² or epirubicin ≥360 mg/m² equivalents).
  • Baseline echo suitable for LVEF ≥53%.
  • Able to consent and comply with follow up.

You may not qualify if:

  • Type 1 and type 2 diabetes; history of diabetic ketoacidosis; pregnancy/lactation.
  • Symptomatic HF, cardiomyopathy, significant valvular disease, prior anthracycline exposure.
  • Baseline hypotension (SBP \<95 mmHg), recurrent UTIs/mycotic infections, active foot ulcer/critical limb ischemia.
  • Inflammatory diseases, liver and kidney diseases.
  • Autoimmune diseases.
  • Other type of malignancies or metastatic diseases.
  • Patients who exposed to surgery less than one month.
  • Concomitant dexrazoxane planned upfront (allowed only for rescue; documented).
  • Known hypersensitivity to study drugs.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Breast Neoplasms

Interventions

dapagliflozinSitagliptin PhosphateDipeptidyl-Peptidase IV InhibitorsStandard of Care

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

TriazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPyrazinesProtease InhibitorsEnzyme InhibitorsMolecular Mechanisms of Pharmacological ActionPharmacologic ActionsChemical Actions and UsesHypoglycemic AgentsPhysiological Effects of DrugsQuality Indicators, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and Evaluation

Study Officials

  • Mohamed Abdelhamid Almeldein, Professor

    Tanta University

    PRINCIPAL INVESTIGATOR
  • Mohamed Elhussieny Shams, Professor

    Mansoura University

    PRINCIPAL INVESTIGATOR
  • Haidy Mahmoud Sami, Lecturer

    Delta University

    STUDY DIRECTOR
  • Osama Hamid Shoaeb, Associate Professor

    Tanta University

    STUDY DIRECTOR

Central Study Contacts

Mai Aboelyazed Elgebaly, Associate Lecturer

CONTACT

Mai Aboelyazed Elgebaly, Associate Lecturer

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Interventional, prospective, randomized, parallel controlled clinical trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Lecturer

Study Record Dates

First Submitted

November 21, 2025

First Posted

February 27, 2026

Study Start

February 1, 2026

Primary Completion (Estimated)

November 1, 2027

Study Completion (Estimated)

December 1, 2027

Last Updated

February 27, 2026

Record last verified: 2026-02