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CompletedNCT06114797Updated Aug 27, 2024

Chamomile Effect on Xerostomia Associated With End-stage Renal Disease in Elderly

An interventional study of Chamomile and Saline mouthwash in Xerostomia Due to Hyposecretion of Salivary Gland, sponsored by Ain Shams University. Completed at 1 site in Egypt. Open to participants aged 66 Years and older. Per ClinicalTrials.gov, last updated 2024-08-27.

Sponsored by Ain Shams University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Jul 2023, registered Oct 2023).
Phase
Not applicable
Study type
Interventional
Enrollment
88
Allocation
Randomized
Ages
66 Years and older
Sex
All
01

Study summary

Background and Objectives: Chronic hemodialysis causes changes in blood chemistry as well as dry mouth, due to removal of excess fluids. Dry mouth is due to hyposalivation or change in saliva composition. Many herbal medicines have been used as treatment options. Since the chamomile was suggested as a potent oral moisturizer by previous studies that have been done in this field. Therefore, the investigators decided to assess the effect of chamomile oral rinse on the SXI score, salivary nitric oxide level, salivary flow rate, OHIP-14, serum creatinine and blood urea levels in elderly patients on chronic hemodialysis.

Material and Methods: It is an interventional randomized controlled clinical trial with a biochemical assessment. A chamomile, and placebo mouthwashes were provided to eighty-eight elderly participants with end-stage renal disease suffering from xerostomia. Patients were divided into 2 equal groups who used either the chamomile or placebo mouthwash for one month. The SXI score and salivary flow rate were evaluated for both groups at different intervals (baseline, 1 week, and 1 month). While salivary NO levels, OHIP-14, serum creatinine and blood urea levels evaluated at baseline and after one month only.

Read the detailed description

A double-blind (interventional) cross-sectional clinical trial was performed on 88 participants in the hemodialysis center at Benha university. The inclusion criteria were both genders above 30 years of age with ESRD and complaints of dry mouth sensation. The exclusion criteria were significant salivary gland damage (for example, due to anticancer medication), radiotherapy or chemotherapy history, and allergies).

Bottles containing chamomile mouthwash or the placebo (A or B) were tagged by a reliable person outside the research group and placed inside an opaque envelope along with the questionnaires. Each patient received two envelopes containing a bottle (A \& B) and a questionnaire. The results were analyzed exclusively by a statistics consultant at the end of the research. The patients were asked to express their sensation of dry mouth using subjective dry mouth score.

The Summated Xerostomia Inventory (SXI) (Thomson et al., 2011; Frigaard et al., 2023):

ESRD patients who met the eligibility criteria were asked about their subjective severity of xerostomia using SXI score where the patient evaluates the frequency of complaints regarding five statements all recorded at 3 different intervals (at baseline- after 2 weeks- after 1 month).

Salivary flow rate: Eating and talking were prohibited during the time of collection. Unstimulated whole saliva was collected for 5 min by spitting method. The collection was timed, so that flow rate (mL/min) could be measured.

The Oral Health Impact Profile (OHIP-14) utilizes a scale with five categories (1 = never, 2 = hardly ever, 3 = occasionally, 4 = fairly often, and 5 = very often) that was evaluated after one month in both groups. A lower score in any of the five categories indicates higher satisfaction (Al-Zubeidi et al., 2012).

Serum creatinine and blood urea levels were assessed at baseline and after one month in both groups.

Nitric oxide levels were determined by Nitric Oxide Assay Kit (Colorimetric) using Griess reaction: The Bio Diagnostic Nitrite Assay Kit provides an accurate and convenient method for measurement of endogenous nitrite concentration as an indicator of nitric oxide production in biological fluids. It depends on the addition of Griess Reagents which convert nitrite into a deep purple azo compound, photometric measurement of the absorbance due to this azo chromophore accurately determines NO2 - concentration.

02

Conditions studied

  • Xerostomia Due to Hyposecretion of Salivary Gland

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Keywords

  • chamomile
  • Nitric oxide
  • hemodialysis
  • xerostomia
  • salivary flow rate
03

In context

Xerostomia

264 studies on the registry are indexed under Xerostomia; 48 are open to participants now.

This study's enrollment of 88 is above the median of 42 across 223 interventional studies indexed under Xerostomia.

Browse Xerostomia studies →

Lead sponsor

Ain Shams University is the lead sponsor of 1,932 studies on the registry; 433 are open to participants now.

Of its 33 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
66 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Both genders, aged above 65 years.

    • All patients must be clinically diagnosed of ESRD undergoing hemodialysis.
    • Patients on hemodialysis ≥ 3 months (Bots et al., 2005).
    • All patients must have complaint of xerostomia.
    • Patients must be able to make reliable decision or communications.

Exclusion criteria

Exclusion Criteria:

  • - Smoking, Alcohol.
  • Patient with history of any serious illness as malignancy, who undergo kidney transplant.
  • Patients with any autoimmune disease.
  • Vulnerable groups such as prisoners, mentally and physically handicapped individuals.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
88 participants (actual)

Study arms

  • Active comparator
    Chamomile mouthwash interventional arm in elderly patients having end-stage renal disease.

    * Chamomile was topically applied to the oral mucosa as oral rinse. * Based on this protocol, patients were had oral rinses 3 times per day. * Patients were instructed to perform chamomile rinses in the oral mucosa. * Patients were instructed not to swallow the chamomile oral rinse.

    Other: Chamomile

  • Placebo comparator
    Saline mouthwash control group in elderly patients having end-stage renal disease.

    Patients in the control arm followed the same protocol with normal saline rinses. As stated before, that use of 4% hypertonic saline solution mouthwash by elderly provided better oral health by decreasing xerostomia, oral tongue plaque, halitosis, and the number of oral bacteria. So the patients in the control group were benefited from the saline oral rinse.

    Other: Saline mouthwash

Interventions

  • OtherChamomile

    * Chamomile was topically applied to the oral mucosa as oral rinse. * Based on this protocol, patients had oral rinses 3 times per day. * Patients were instructed to perform chamomile rinses in the oral mucosa. * Patients were instructed not to swallow the chamomile oral rinse.

  • OtherSaline mouthwash

    Saline mouthwash was used by elderly patients in the control arm.

06

What researchers measure

Primary outcomes

  1. The Summated Xerostomia Inventory (SXI)

    subjective severity of xerostomia using SXI score where the patient evaluates the frequency of complaints regarding five statements. Each statement has three possible replies: never, occasionally, or often, with scoring 1, 2, and 3, respectively. The SXI has a score range from (5 to 15), where a maximum score indicates severe problems related to dry mouth

    Time frame: one month

Secondary outcomes

  1. Increase in unstimulated Salivary Flow Rate (ml/min)

    Unstimulated whole saliva was collected for 5 min by spitting method. The collection was timed, so that flow rate (mL/min) could be measured. The normal unstimulated salivary flow rate is approximately 0.3-0.4 mL/min. A diagnosis of hyposalivation is made when the unstimulated salivary flow rate is ≤0.1 mL/min. Time Frame: baseline, 2 weeks and 4 weeks after intervention \] The outcome measure will be measured before and 2 and 4 weeks after continuous usage of chamomile mouth rinse (for at least 5 days per week)

    Time frame: one month

  2. Increase in salivary Nitric oxide levels (mmol/L) using clorimetric determination method

    Increase in salivary Nitric oxide levels (mmol/L) using clorimetric determination method \[ Time Frame: baseline and 4 weeks after intervention\] The outcome measure will be measured before and 4 weeks after continuous usage of chamomile mouth rinse (for at least 5 days per week).

    Time frame: one month

  3. The Oral Health Impact Profile (OHIP-14) questionnaire

    (OHIP-14) utilizes a scale with five categories (1 = never, 2 = hardly ever, 3 = occasionally, 4 = fairly often, and 5 = very often) that was evaluated after one month in both groups. A lower score in any of the five categories indicates higher satisfaction

    Time frame: one month

  4. Serum creatinine and blood urea levels

    Kidney clinical parameters to evaluate the renal function, higher values are the worst, and lower values are the best.

    Time frame: one month

07

Study locations

1 site
  • Ain Shams University
    Cairo, 3753450, Egypt
08

References and documents

Publications

  • Afsaneh Abadi P, Koopaie M, Montazeri R. Comparison of salivary nitric oxide and oral health in diabetic patients with and without xerostomia. Diabetes Metab Syndr. 2020 Jan-Feb;14(1):11-15. doi: 10.1016/j.dsx.2019.11.014. Epub 2019 Nov 25. PubMed 31809967 ↗
  • Alam F, Islam MA, Gan SH, Khalil MI. Honey: a potential therapeutic agent for managing diabetic wounds. Evid Based Complement Alternat Med. 2014;2014:169130. doi: 10.1155/2014/169130. Epub 2014 Oct 15. PubMed 25386217 ↗
  • Anil S, Vellappally S, Hashem M, Preethanath RS, Patil S, Samaranayake LP. Xerostomia in geriatric patients: a burgeoning global concern. J Investig Clin Dent. 2016 Feb;7(1):5-12. doi: 10.1111/jicd.12120. Epub 2014 Sep 1. PubMed 25175324 ↗
  • Bardow A, Nyvad B, Nauntofte B. Relationships between medication intake, complaints of dry mouth, salivary flow rate and composition, and the rate of tooth demineralization in situ. Arch Oral Biol. 2001 May;46(5):413-23. doi: 10.1016/s0003-9969(01)00003-6. PubMed 11286806 ↗
  • Belcher J. Dressings and healing with honey. Br J Nurs. 2014 Mar 27-Apr 9;23(6):S22. doi: 10.12968/bjon.2014.23.Sup6.S22. PubMed 24690746 ↗
  • Bots CP, Brand HS, Veerman EC, Korevaar JC, Valentijn-Benz M, Bezemer PD, Valentijn RM, Vos PF, Bijlsma JA, ter Wee PM, Van Amerongen BM, Nieuw Amerongen AV. Chewing gum and a saliva substitute alleviate thirst and xerostomia in patients on haemodialysis. Nephrol Dial Transplant. 2005 Mar;20(3):578-84. doi: 10.1093/ndt/gfh675. Epub 2005 Jan 21. PubMed 15665029 ↗

Individual participant data

Plan to share: No — will not share my raw data

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 27, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06114797
Responsible party
Asmaa Aboubakr (Lecturer Assistant, Ain Shams University) — Principal investigator
First posted
Nov 2, 2023
Start date
Jul 1, 2023
Primary completion
Aug 20, 2023
Completion
Sep 1, 2023
Last update
Aug 27, 2024

Oversight

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

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