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CompletedNCT05959889Updated Mar 9, 2026

Effect of Montelukast on Doxorubicin Induced Cardiotoxicity in Breast Cancer

An interventional study of AC protocol and Montelukast in Breast Cancer and Doxorubicin Induced Cardiotoxicity, sponsored by Damanhour University. Completed at 1 site in Egypt. Open to female participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-03-09.

Sponsored by Damanhour University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Mar 2023, registered Jul 2023).
Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
Female
01

Study summary

This is a prospective, randomized (1:1) controlled trial that will be carried out on 50 patients who are candidate to evaluate the effect of montelukast on doxorubicin induced cardiotoxicity after 4 cycles of AC. Patients will be randomly allocated into two equal groups (25 patients each); group (A) for controlled (placebo), and group (B) for montelukast. Blood samples will be collected from the study subjects and analyzed for serum levels of the NF-KB and pro-BNP. Assessment of the biomarkers will be done at two time points: at baseline and after treatment with montelukast.

Read the detailed description

The primary objective of this study is to evaluate the effect of montelukast on doxorubicin induced cardiotoxicity in breast cancer patients through assessing serum NT-proBNP and NF-KB. The secondary objective is to evaluate the safety and side effects of montelukast on doxorubicin induced cardiotoxicity in breast cancer patients.

Methodology and study design:

  1. Ethical committee approval will be obtained from Ethics committee of Faculty of Pharmacy, Damanhour University.
  2. About 50 patients who are candidate to the study will be recruited from Damanhour Cancer Institute.
  3. All participants will provide an informed consent.
  4. Demographic data; age (year), sex (female/male), weight (kg), height (cm), BMI (kg/m2) will be collected.
  5. About 5 ml of venous blood will be withdrawn by antecubital venipuncture from each participant at baseline and after receiving montelukast 10 mg once daily at bed time for 4 cycles of AC. At each time point blood samples will be collected into plain test tubes and centrifuged at 4500×g for 10 min and serum will be frozen at - 80 ◦C until analysis of the biomarkers using ELISA kits.
  6. Montelukast tablets will be provided on monthly intervals and the participants' adherence will be assessed through the medications refilling rate. Participants will also be followed-up by weekly telephone calls and monthly direct meetings to assess their adherence and report any drug related adverse effects.
02

Conditions studied

  • Breast Cancer
  • Doxorubicin Induced Cardiotoxicity

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Keywords

  • Montelukast
  • Doxorubicin
  • Induced Cardiotoxicity
  • Breast cancer Patients
03

In context

Breast Neoplasms

12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.

This study's enrollment of 50 is below the median of 72 across 9,303 interventional studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

Damanhour University is the lead sponsor of 76 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  1. Adult patients (age≥18 and≤ 70years old) with biopsy-confirmed diagnosis of breast cancer according to the American Joint Committee on Cancer (TNM staging system).
  2. Patients with performance status (\<2) according to Eastern Cooperative Oncology Group (ECOG).
  3. Patients with adequate hematologic parameters (absolute neutrophil count≥1.5× 109/L, platelet count≥100× 109/L, hemoglobin level≥10 g/dl), adequate liver function (serum bilirubin\<1.5 mg/dl), and adequate renal function (serum creatinine\<1.5 mg/dl, creatinine clearance (CrCl)>45 ml/min).

Exclusion criteria

Exclusion Criteria:

  1. Patients who refuse to sign the written consent.
  2. If blood cell counts are too low.
  3. Severe liver problem.
  4. Recent heart attack or have severe heart problems.
  5. Previous treatment with Doxorubicin or certain other anticancer medications.
  6. Allergy to certain other anti-cancer medicines, doxorubicin hydrochloride, Cis-platin, vincristine, paclitaxel, docetaxel, foscarnet, etc.

    in the last 6 months.

  7. Women with evidence of metastasis at the initial assessment.
  8. Presence of clinical evidence for severe cardiac illness (angina pectoris, uncontrolled hypertension, arrhythmias, and left ventricular ejection fraction\<50%).
  9. Pregnant and breast-feeding women.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
50 participants (actual)

Study arms

  • Active comparator
    Control Group

    Control group received 4 cycles of the AC regimen (which consisted of an intravenous (IV) infusion of DOX (dose/cycle = 60 mg/m2) administered as a slow IV push over 5-10 min, followed by an infusion of cyclophosphamide (dose/cycle = 600 mg/m2) over 30-60 min, with a 21-day interval).

    Drug: AC protocol

  • Active comparator
    Motelukast Group

    Motelukast Group will receive motelukast 10 mg daily for 4 cycles of the same AC regimen.

    Drug: Montelukast

Interventions

  • DrugAC protocol

    The control group received 4 cycles of the AC regimen which consisted of an intravenous (IV) infusion of DOX (dose/cycle = 60 mg/m2) administered as a slow IV push over 5-10 min, followed by an infusion of cyclophosphamide (dose/cycle = 600 mg/m2) over 30-60 min, with a 21-day interval.

    Also known as: AC regimen

  • DrugMontelukast

    Patients will receive motelukast 10 mg once daily for 4 cycles of AC regimen.

    Also known as: Montelukast tablet

06

What researchers measure

Primary outcomes

  1. NF-KB

    serum concentration of the NF-KB (ng/dl)

    Time frame: 6 months

  2. pro-BNP

    serum concentration of the pro-BNP (ng/dl)

    Time frame: 6 months

07

Study locations

1 site
  • Damanhour Oncology Center
    Damanhūr, Elbehairah 31527, Egypt
08

References and documents

Publications

  • Said MM, Bosland MC. The anti-inflammatory effect of montelukast, a cysteinyl leukotriene receptor-1 antagonist, against estradiol-induced nonbacterial inflammation in the rat prostate. Naunyn Schmiedebergs Arch Pharmacol. 2017 Feb;390(2):197-205. doi: 10.1007/s00210-016-1325-4. Epub 2016 Dec 1. PubMed 27909742 ↗
  • Elnoury HA, Elgendy SA, Baloza SH, Ghamry HI, Soliman M, Abdel-Aziz EA. Synergistic impacts of Montelukast and Klotho against doxorubicin-induced cardiac toxicity in Rats. Toxicol Res (Camb). 2022 Jun 20;11(4):592-604. doi: 10.1093/toxres/tfac023. eCollection 2022 Aug. PubMed 36051669 ↗
  • Gomaa NF, Werida RH, El-Gowily AG, El-Bassiouny NA. Evaluating the role of montelukast on doxorubicin-induced cardiotoxicity in breast cancer patients. Support Care Cancer. 2025 Oct 1;33(10):897. doi: 10.1007/s00520-025-09947-z. PubMed 41034674 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 9, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05959889
Lead sponsor
Damanhour University
Responsible party
Rehab Werida (Associate Professor, Damanhour University) — Principal investigator
First posted
Jul 25, 2023
Start date
Mar 1, 2023
Primary completion
Nov 30, 2024
Completion
Dec 1, 2024
Last update
Mar 9, 2026

Study contacts

Noha A. El bassiouny, Lecturer
study director · Damanhour University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.

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