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RecruitingNCT06354712Updated Jan 15, 2025

Efficacy of N-acetylcysteine in Preventing Radiotherapy-Induced Oral Mucositis in Head and Neck Cancer Patients.

A Phase 2 interventional study of N-Acetyl-Cysteine with Institutional standard care and Institutional standard care in Oral Mucositis (Ulcerative) Due to Radiation, sponsored by Mansoura University. Recruiting at 1 site in Egypt. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-01-15.

Sponsored by Mansoura University · Phase 2, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Mar 2025, 1 year 8 months ago, but the record still lists the study as recruiting.
  • Started Apr 2024; still recruiting 2 years 7 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

A prospective, randomized, controlled, parallel clinical trial will be conducted at Clinical Oncology and Nuclear Medicine Center at Mansoura University Hospital to assess the efficacy of N-acetylcysteine in the prevention of radiotherapy induced oral mucositis in Head and Neck cancer patients.

02

Conditions studied

  • Oral Mucositis (Ulcerative) Due to Radiation

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Keywords

  • Oral Mucositis, Radiotherapy, N-acetylcysteine
03

In context

Stomatitis

306 studies on the registry are indexed under Stomatitis; 75 are open to participants now.

This study's planned enrollment of 50 is below the median of 60 across 276 interventional studies indexed under Stomatitis.

Browse Stomatitis studies →

Lead sponsor

Mansoura University is the lead sponsor of 1,119 studies on the registry; 183 are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Adults >18 years diagnosed with squamous cell carcinoma of the head and neck scheduled to receive curative radiotherapy (Primary or postoperative) of at least 50 Gy with or without concurrent chemotherapy.
  2. Individuals with healthy mucosa.
  3. Adequate bone marrow function ( level ≥10 g/dL, count ≥75 × 103/microliter, and ≥1.5 × 103/microliter).
  4. Patients with performance ≤2

Exclusion criteria

Exclusion Criteria:

  1. History of chemotherapy or radiotherapy.
  2. Signs of systemic infections.
  3. Pregnant and lactating women.
  4. Individuals receiving systemic analgesics.
  5. Liver disorders and renal failure with \<30 ml/min/1.73m2 (by the MDRD equation).
  6. Inability to follow instructions and complete the questionnaires.
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Care provider, Outcomes assessor)
Enrollment
50 participants (estimated)

Study arms

  • Other
    Control arm

    Standard Care

    Drug: Institutional standard care

  • Active comparator
    Interventional arm

    Standard Care plus NAC

    Drug: N-Acetyl-Cysteine with Institutional standard care

Interventions

  • DrugN-Acetyl-Cysteine with Institutional standard care

    A potent antioxidant and anti-inflammatory drug (A precursor of the endogenous antioxidant glutathione)

  • DrugInstitutional standard care

    Benzydamine Mouthwash

06

What researchers measure

Primary outcomes

  1. Incidence of oral mucositis with grade ≥ 2 assessed weekly by World Health Organization scale for Oral Mucositis.

    Difference between the two arms regarding incidence of grade ≥ 2 according to World Health Organization scale for Oral Mucositis.

    Time frame: 8 weeks

Secondary outcomes

  1. Time to develop oral mucositis with grade ≥ 2.

    Difference between the two arms regarding time to develop oral mucositis with grade ≥ 2 according to WHO scale for oral mucositis. World Health Organization scale for oral mucositis * Grade 0: no oral mucositis * Grade 1: erythema and soreness * Grade 2: ulcers, able to eat solids * Grade 3: ulcers, requires liquid diet * Grade 4: ulcers, alimentation not possible (due to mucositis).

    Time frame: 8 weeks

  2. Duration of oral mucositis with grade ≥ 2.

    Difference between the two arms regarding duration of oral mucositis with grade ≥ 2 according to WHO scale for oral mucositis.

    Time frame: 8 weeks

  3. Pain assessed by Visual Analog Scale (VAS).

    The pain VAS is a unidimensional measure of pain intensity, used to record patients' pain progression. The most simple VAS is a straight horizontal line of fixed length usually 100 mm. The ends are defined as the extreme limits of the parameter to be measured (pain) orientated from the left (worst) to the right (best). we will allocate this scale in comparing pain severity between the two arms.

    Time frame: 8 weeks

  4. Functional oral intake scale

    TUBE DEPENDENT (levels 1-3) 1. No oral intake 2. Tube dependent with minimal/inconsistent oral intake 3 Tube supplements with consistent oral intake TOTAL ORAL INTAKE (levels 4-7) 4. Total oral intake of a single consistency 5. Total oral intake of multiple consistencies requiring special preparation 6. Total oral intake with no special preparation, but must avoid specific foods or liquid items 7. Total oral intake with no restrictions

    Time frame: 8 weeks

  5. Patient's quality of life assessed by Functional Assessment of Cancer Therapy in Head and Neck Cancer (FACT-H&N) version 4

    A questionnaire filled by head and neck cancer patient to assess the quality of life. H\&N1 I am able to eat the foods that I like H\&N2 My mouth is dry H\&N3 I have trouble breathing H\&N4 My voice has its usual quality and strength H\&N5 I am able to eat as much food as I want H\&N6 I am unhappy with how my face and neck look H\&N7 I can swallow naturally and easily H\&N8 I smoke cigarettes or other tobacco products H\&N9 I drink alcohol (e.g. beer, wine, etc.) H\&N10 I am able to communicate with others H\&N11 I can eat solid foods H\&N12 I have pain in my mouth, throat or neck Scoring:Not at all (0) A little bit (1) Somewhat (2) Quite a bit (3) Very much(4)

    Time frame: 8 weeks

07

Study locations

1 of 1 sites recruiting
  • Clinical Oncology and Nuclear Medicine of Mansoura University Hospital
    Mansoura, Egypt
    Recruiting
    • Rasha Abd-Ellatif, Professor · Contact
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Apr 2024 (actual). Primary completion is estimated for Mar 2025, 10 months after the start.

Of 39 phase 2 interventional studies under Stomatitis, half reached primary completion within 35 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 48. This study's planned 10 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 3, 2024
First posted
Apr 9, 2024
StartActual
Apr 4, 2024
Primary completionEst.
Mar 1, 2025
CompletionEst.
Mar 1, 2025
Last update
Jan 15, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 15, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06354712
Responsible party
Noha Mansour (Lecturer of Clinical Pharmacy and Pharmacy Practice, Mansoura University) — Principal investigator
First posted
Apr 9, 2024
Start date
Apr 4, 2024
Primary completion
Mar 1, 2025 (estimated)
Completion
Mar 1, 2025 (estimated)
Last update
Jan 15, 2025

Study contacts

Reem Abou-Elezz, BSc
Contact
reemabouelezz@mans.edu.eg
+201065396455
Mohamed el-Husseiny shams, Professor
principal investigator · Department of Clinical pharmacy and Pharmacy practice, Faculty of Pharmacy, Mansoura University
Noha Mansour, phD
study director · Department of Clinical pharmacy and Pharmacy practice, Faculty of Pharmacy, Mansoura University
Rasha Mohamed Abd-Ellatif, Professor
study director · Center of Clinical Oncology and nuclear medicine, Faculty of Medicine, Mansoura University
Fatma Gharib Khirallah, Associate Professor
study director · Center of Clinical Oncology and nuclear medicine, Faculty of Medicine, Tanta University
Mohamed Awad Ebrahim, Professor
study director · Center of Medical Oncology and Adult BMT, Faculty of Medicine, Mansoura University.

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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