NCT03498950

Brief Summary

During conditioning with chemotherapy and radiotherapy for the transplantation of hematopoietic stem cells (HSCT), oral changes, such as mucositis, xerostomia infections and dysgeusia may occur. Low level laser therapy is used to minimize the intensity of the lesions, prevent ulcerations in the mucosa, and diminish the time of healing. To verify the efficacy of low level laser therapy in the prevention of dysgeusia in patients undergoing allogenic HSCT and detect the frequency of dysgeusia, the flavors most changed, and the association of these changes with the clinical conditions of the patient. The study sample will be composed of 80 patients selected at the Hematopoietic Stem Cell Transplantation Center of the "Hospital Israelita Albert Einstein". The patients will be randomized and distributed into two groups: Placebo Group (n=40) - submitted to the routine laser therapy protocol in addition to simulated laser irradiation on the taste papillae; Test Group (n= 40) - submitted to the same laser therapy protocol as that of the Placebo Group, however, laser irradiation on the taste papillae will be effective. Daily intraoral exam will be performed in all the patients to evaluate mucositis, xerostomia and depapillation. The taste acuity test will determine the function of taste, using samples with the four basic flavors. This will be performed on the first day of conditioning (T0), during the stage of neutropenia (T1), at the time of discharge after transplantation (T2) and 100 days after transplantation (T3). A questionnaire will also be applied to evaluate the impact of changes in taste, smell and xerostomia on the quality of life. Our hypothesis is that the laser irradiation on the lingual papillae would help to prevent the changes in the cells of the taste papillae, preserving their morphology and function, which may attenuate the change in sense of taste and have a positive impact on the quality of life of patients during transplantation.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2016

Longer than P75 for not_applicable

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2016

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2018

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

April 2, 2018

Completed
15 days until next milestone

First Posted

Study publicly available on registry

April 17, 2018

Completed
1.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2019

Completed
Last Updated

May 12, 2021

Status Verified

May 1, 2021

Enrollment Period

2 years

First QC Date

April 2, 2018

Last Update Submit

May 8, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • descriptive function of taste

    using samples with the four basic flavors

    100 days

Study Arms (2)

Placebo Group

NO INTERVENTION

submitted to the routine laser therapy protocol in addition to simulated laser irradiation on the taste papillae

Test Group

EXPERIMENTAL

submitted to the same laser therapy protocol as that of the Placebo Group, however, laser irradiation on the taste papillae will be effective.

Other: laser therapy

Interventions

laser irradiation on the taste papillae

Test Group

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • submitted a bone marrow transplantation
  • adequate oral hygiene
  • absence of periodontal disease and other infectious foci prior to transplantation
  • normal chewing, swallowing and phonation functions prior to transplantation
  • participation of all previously planned laser therapy sessions.

You may not qualify if:

  • not performing all the steps of oral hygiene oriented during the transplant
  • lack of collaboration in diagnostic test of the palate
  • lack of records on dietary intake
  • absence of record of clinical data of interest for the project in the medical record
  • death during the transplant or 30 days after the completion of the bone marrow transplantation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (4)

  • Epstein JB, Barasch A. Taste disorders in cancer patients: pathogenesis, and approach to assessment and management. Oral Oncol. 2010 Feb;46(2):77-81. doi: 10.1016/j.oraloncology.2009.11.008. Epub 2009 Dec 28.

    PMID: 20036797BACKGROUND
  • Boer CC, Correa ME, Miranda EC, de Souza CA. Taste disorders and oral evaluation in patients undergoing allogeneic hematopoietic SCT. Bone Marrow Transplant. 2010 Apr;45(4):705-11. doi: 10.1038/bmt.2009.237. Epub 2009 Sep 21.

    PMID: 19767788BACKGROUND
  • Just T, Pau HW, Bombor I, Guthoff RF, Fietkau R, Hummel T. Confocal microscopy of the peripheral gustatory system: comparison between healthy subjects and patients suffering from taste disorders during radiochemotherapy. Laryngoscope. 2005 Dec;115(12):2178-82. doi: 10.1097/01.MLG.0000181502.07160.86.

    PMID: 16369163BACKGROUND
  • Schubert MM, Eduardo FP, Guthrie KA, Franquin JC, Bensadoun RJ, Migliorati CA, Lloid CM, Eduardo CP, Walter NF, Marques MM, Hamdi M. A phase III randomized double-blind placebo-controlled clinical trial to determine the efficacy of low level laser therapy for the prevention of oral mucositis in patients undergoing hematopoietic cell transplantation. Support Care Cancer. 2007 Oct;15(10):1145-54. doi: 10.1007/s00520-007-0238-7. Epub 2007 Mar 29.

    PMID: 17393191BACKGROUND

MeSH Terms

Conditions

Taste Disorders

Interventions

Laser Therapy

Condition Hierarchy (Ancestors)

Sensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

TherapeuticsAblation TechniquesSurgical Procedures, Operative

Study Officials

  • Fernanda de P Eduardo

    Hospital Israelita Albert Einstein

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
The patients will be randomized and distributed into two groups: Placebo Group (n=40) - submitted to the routine laser therapy protocol in addition to simulated laser irradiation on the taste papillae; Test Group (n= 40) - submitted to the same laser therapy protocol as that of the Placebo Group, however, laser irradiation on the taste papillae will be effective.
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: The study sample will be composed of 80 patients selected at the Hematopoietic Stem Cell Transplantation Center of the "Hospital Israelita Albert Einstein". The patients will be randomized and distributed into two groups.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Dentist

Study Record Dates

First Submitted

April 2, 2018

First Posted

April 17, 2018

Study Start

February 1, 2016

Primary Completion

February 1, 2018

Study Completion

August 1, 2019

Last Updated

May 12, 2021

Record last verified: 2021-05

Data Sharing

IPD Sharing
Will not share