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Clinical Trials/NCT07349459
NCT07349459Not yet recruitingNot Applicable

Clinical Study Evaluating Cardioprotective Effect of Melatonin Versus Vitamin D in Breast Cancer Patients Receiving Doxorubicin

Tanta University1 site in 1 country90 target enrollmentStarted: April 30, 2026Last updated:
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Not yet recruiting
Enrollment
90
Locations
1
Primary Endpoint
Decreasing incidence and severity of cardiotoxicity

Study Overview

Brief Summary

This study aims to assess the cardioprotective effect of melatonin and vitamin D in breast cancer patients who receive doxorubicin.

Detailed Description

Doxorubicin is one of the most potent chemotherapeutic agents and is widely used for the treatment of various cancers and hematological malignancies . Although Doxorubicin has a potential beneficial effect in cancer treatment, its dose-dependent cardio toxicity is considered a major challenge.

Doxorubicin is known to generate free radicals either by redox cycling between a semiquinone form and a quinone form or by forming a Doxorubicin-Fe3+ complex . In both pathways, molecular oxygen is reduced to superoxide ion , which is converted to other forms of reactive oxygen species such as hydrogen peroxide and hydroxyl radical . These free radicals could then cause membrane and macromolecule damage, both of which lead to injury to the heart, an organ that has a relatively low level of antioxidant enzymes such as superoxide dismutase and catalase .

Furthermore, it was revealed that Doxorubicin may enhance the death of cardiomyocytes by affecting the tumor necrosis factor signaling pathway via increasing the expression and levels of inflammatory genes interleukin and interleukin -6 .

To alleviate DOX-induced toxicity, researchers have tested a number of strategies, including the administration of antioxidants and/or antiapoptotic agents, in both in vitro and in vivo models of Doxorubicin induced cytotoxicity, but most of these trials have failed to translate into clinical benefits . As a result, there are no effective approaches for alleviating Doxorubicin induced cytotoxicity despite intensive research over recent decades .

Melatonin is a natural hormone that is primarily secreted by the pineal gland and functions as a major regulator of circadian rhythms in humans . Melatonin also plays a variety of biological roles as a modulator of mood, sexual behavior and sleep; low levels or a deficiency of melatonin are also associated with Parkinson's disease, Alzheimer's disease, epilepsy, ischemic injury, diabetes, and even cancer .

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Prevention
Masking
Double (Participant, Outcomes Assessor)

Eligibility Criteria

Ages
18 Years to 65 Years (Adult, Older Adult)
Sex
Female
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Age from 18 to 65 years old.
  • Gender: female.
  • Positive breast cancer women who are scheduled to receive Doxorubicin.
  • Have a good performance status according to the eastern cooperative oncology group with a score of 0-
  • Normal baseline Echocardiography with left ventricular ejection fraction ≥ 50%.
  • Normal renal and liver function tests.

Exclusion Criteria

  • Pregnant or breastfeeding women.
  • Women with HER-2 positive of breast cancer.
  • Formerly treated with Doxorubicin.
  • Patients with a known hypersensitivity to any of the used drugs.
  • On other concomitant vitamins or food supplements.
  • Valvular heart disease, coronary artery disease, history of congestive heart failure or cardiomyopathy.
  • Impaired Left ventricular systolic function in which the Left Ventricular Ejection Fraction < 50%.

Arms & Interventions

Group 1 (Doxorubicin group)

Placebo Comparator

30 patients will receive a traditional chemotherapeutic agent (Doxorubicin group) for 12 weeks.

Intervention: Group 1 (Doxorubicin group) (Drug)

Group 2 (Vitamin D group)

Experimental

patients with Vitamin D supplementation (1000 iu/day) plus Doxorubicin for 12 weeks

Intervention: Group 2: Vitamin D group (Drug)

Group 3 (melatonin group)

Experimental

30 patients with 10 mg of melatonin orally, once daily plus Doxorubicin for 12 weeks.

Intervention: Group 3: melatonin group (Drug)

Outcomes

Primary Outcomes

Decreasing incidence and severity of cardiotoxicity

Time Frame: 12 weeks

Assessment of decreasing incidence and severity of cardiotoxicity by echocardiogram and ejection fraction is associated with doxorubicin treatment.

Secondary Outcomes

  • change in the serum level of the (biological markers).(12 weeks)

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Majed Essa Alharbi

Resident

Tanta University

Study Sites (1)

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