The Effect of Donepezil in Radiotherapy-related Cognitive Impairment.

Cognitive Impairment Clinical Trial

Official title:

The Effect of Donepezil in Radiotherapy-related Cognitive Impairment: a Randomized, Double-blind, Placebo-controlled Clinical Trial

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03907371
• Other study ID #: 2019002
• Status: Recruiting
• Phase: Phase 2
• Start date: May 1, 2019
• Est. completion date: December 31, 2022

Study information

• Verified date: November 2019
• Source: Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
• Contact: Yamei Tang, M.D.
• Phone: +86 13556001002
• Email: yameitang[@]hotmail.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Purpose: This randomized, double-blind, placebo-controlled clinical trial aims to evaluate the therapeutic effects of donepezil in radiotherapy-related cognitive impairment.

Further study details as provided by Sun Yat-sen Memorial Hospital, Sun Yat-sen University / Yameitang.

Primary outcome measure: cognitive improvement, which is determined by the difference value of ADAS-cog score before and after the treatment of donepezil.

Description:

Application of radiotherapy to patients with head and neck cancer is a mainstay treatment in contemporary oncology practice. However, patients who received radiation are vulnerable to development of cognitive impairment. There is no acknowledged and effective standard treatment for radiotherapy-related cognitive impairment. The investigators supposed that donepezil, as a cholinesterase inhibitor, would relieve radiotherapy-related cognitive impairment after head and neck cancer, and would improve the life quality for these patients and their families.

Primary objectives: This randomized, double-blind, placebo-controlled clinical trial aims to evaluate the efficacy of donepezil on cognition in radiotherapy-related cognitive impairment.

Secondary objectives:

To evaluate the effect of donepezil on sleep disorder, mood disorder, activities of daily living, and safety in patients with radiotherapy-related cognitive impairment.

OUTLINE: This is randomized, double-blind, placebo-controlled clinical trial. Patients will be enrolled and administrated with donepezil or placebo. Donepezil will be supplied as 10 mg per pill to be taken by mouth. Placebo will be supplied as substitute of 10 mg donepezil per pill to be taken by mouth.

Patients will be screened, consented, enrolled and have a washout period for 6 weeks. Then these patients will be randomized to two arms.

Arm І: Patients receive donepezil with a dosage of 5 milligram at 8 am for one week (Week 1), then 10 milligram at 8 am for 23 weeks (Week 2-24), in the absence of unacceptable toxicity or severe deterioration.

Arm ІI: Patients receive placebo with a dosage of one half pill at 8 am for one week (Week 1), then one pill at 8 am for 23 weeks (Week 2-24), in the absence of unacceptable toxicity or severe deterioration.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 238
• Est. completion date: December 31, 2022
• Est. primary completion date: December 31, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 35 Years to 60 Years

Eligibility

Inclusion Criteria:

• (1) Received radiation therapy due to head and neck cancer.

• (2) Prior irradiation = 1.5 years and = 6 years.

• (3) Age>/= 35 years and age</=60.

• (4) Estimated life expectancy = 12 months.

• (5) Cognitive impairment = 4 weeks, with MMSE total score =26, or MoCA total score = 25.

• (6) Routine laboratory studies: normal bilirubin, normal aspartate aminotransferase (AST or SGOT), normal alanine aminotransferase (ALT), normal creatinine, normal white-cell count; normal neutrophils count, normal platelets count; Hb >/=110 gram per millilitres; PT, APTT, INR in a normal range.

• (7) Constant caregivers who well understand and have willingness to sign a written informed consent document.

Exclusion Criteria:

• (1) evidence of tumor metastasis, recurrence, or invasion;

• (2) evidence of very high intracranial pressure that suggests brain hernia and need surgery;

• (3) previous treatment with donepezil or other medications for cognitive impairment;

• (4) history of mental disorders, epilepsy, cognitive impairment before radiotherapy;

• (5) history of stroke, or high risk of vascular dementia;

• (6) family history of Alzheimer's disease, Pick's disease, etc.;

• (7) history of severe head trauma;

• (8) clinically significant active disease, e.g. New York Heart Association Grade II or greater congestive heart failure, serious and inadequately controlled cardiac arrhythmia, bradycardia, significant vascular disease, severe infection;

• (9) history of allergy to relevant drugs;

• (10) pregnancy, lactation, or fertility program in the following 12 months;

• (11) participation in other experimental studies.

Related Conditions & MeSH terms

• Cognitive Dysfunction
• Cognitive Impairment
• Radiation Injuries

Intervention

Drug:
• Donepezil Hydrochloride
Donepezil will be used with a dosage of 5 milligram at 8 am for one week (Week 1), then 10 milligram at 8 am for 23 weeks (Week 2-24).

Other:
• Placebo
Placebo will be used with a dosage of one half pill at 8 am for one week (Week 1), then one pill at 8 am for 23 weeks (Week 2-24).

Locations

Country	Name	City	State
China	Sun Yat-Sen Memorial Hospital	Guangzhou	Guangdong

Sponsors (1)

Lead Sponsor	Collaborator
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	cognitive change	Cognitive change, which is determined by the difference value of ADAS-cog (Alzheimer's Disease Assessment Scale-cognitive subscale) before and after the treatment of donepezil. The rating of ADAS-cog is made on 6-point scale rating from 0 to 5 in 12 domains.	Baseline to Week 24
Secondary	global condition change	Efficacy of donepezil on global condition using CIBIC-plus (Clinician's Interview-Based Impression of Change plus). The rating is made on a 7-point scale ranging from "1 = marked improvement" to "7 = marked worsening". A score of "4" indicates no change.	Baseline to Week 24
Secondary	changes of activities of daily living	Efficacy of donepezil on activities of daily living using ADL (Activities of Daily Living). Total score is from 0 to 54. The higher score, the lower impairment.	Baseline to Week 24
Secondary	cognition change	Efficacy of donepezil on mental statement using MMSE (Mini Mental Status Examination). The total score of MMSE is 30.	Baseline to Week 24
Secondary	psychological statement change	Efficacy of donepezil on psychological statement, including sleep disorder, mood disorder etc. using Neuropsychiatric Inventory (NPI) total score.	Baseline to Week 24