Skip to content

Muscadine Grape Extract to Improve Fatigue

FOCUS - Pilot Study of Muscadine Grape Extract to Improve Fatigue Among Older Adult Cancer Survivors

Status
Completed
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04495751
Enrollment
64
Registered
2020-08-03
Start date
2021-04-20
Completion date
2024-08-26
Last updated
2025-10-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fatigue

Keywords

Older, Cancer, Survivors

Brief summary

The purpose of this research is to see if muscadine grape extract improves fatigue in people age 70 and above who have a history of treated cancer and report the symptom of fatigue.

Detailed description

Primary Objective: To evaluate whether administration of MGE supplementation decreases PROMIS Fatigue score from baseline to 12 weeks compared to placebo. Secondary Objective(s) * To evaluate whether administration of muscadine grape extract supplementation (4 tablets twice daily) causes changes in physical function (Pepper Assessment Tool for Disability \[PAT-D\], Short Physical Performance Battery), physical fitness (6-minute walk), physical activity (Minnesota Leisure Questionnaire), sedentary behavior (Sedentary Behavior Questionnaire) from baseline to 12 weeks compared to placebo. * To compare changes in health related quality of life (PROMIS Global Health) at 12 weeks in participants randomized to muscadine grape extract group vs. placebo. * To compare changes in the Fried frailty index at 12 weeks in participants randomized to muscadine grape extract vs. placebo. OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Patients receive muscadine grape extract orally (PO) twice daily (BID) for 12 weeks in the absence of disease progression or unacceptable toxicity. ARM II: Patients receive placebo PO BID for 12 weeks in the absence of disease progression or unacceptable toxicity. After completion of study, patients are followed up for 30 days after the last dose of the study drug.

Interventions

DIETARY_SUPPLEMENTMuscadine grape extract

Four pills twice daily

DRUGPlacebo

Four pills twice daily.

OTHERQuality of Life Assessment

Ancillary studies

OTHERQuestionnaires

Ancillary studies

OTHERParticipant Feedback

Ancillary studies

Sponsors

National Center for Advancing Translational Sciences (NCATS)
CollaboratorNIH
National Cancer Institute (NCI)
CollaboratorNIH
Wake Forest University Health Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Investigator)

Masking description

This is a double blind study. Only the investigational pharmacists and the statisticians will be unblinded. The blind will be maintained until the study is complete.

Eligibility

Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Self-reported history of cancer diagnosed \> 12 months prior to enrollment excluding non-melanoma skin cancer with no evidence of disease at enrollment. * Eligible solid tumor cancer types include Stage 1-3 breast, lung, head and neck, colorectal, anal, prostate, melanoma, bladder/ureteral, esophageal, gastric, pancreatic, kidney, liver/biliary, uterine, cervical, ovarian, sarcoma. (superficial disease and in situ disease only is excluded) * Eligible hematologic malignancies include lymphoma any subtype any stage in remission, multiple myeloma in remission, leukemia any subtype in remission. * Eligible prior cancer treatment modalities include surgery, radiation, chemotherapy, hormonal therapies, immunotherapy, biologic therapies. * All anti-cancer therapy completed \> 12 months prior to enrollment * Age 65 years and older * Presence of self-reported fatigue defined by a response of somewhat, quite a bit or very much to the screening question During the past seven days, did you feel fatigued: Not at all, a little bit, somewhat, quite a bit, very much? * Ability to walk without requiring assistance from another individual (use of cane or walker acceptable) * Normal organ and marrow function as defined below: * leukocytes \>3,000/mcL * absolute neutrophil count \>1,500/mcL * platelets \>100,000/mcL * total bilirubin within normal institutional limits * AST(SGOT)/ALT(SGPT) \<2.5 X institutional upper limit of normal * creatinine clearance \>30 mL/min * Ability to understand and the willingness to sign an IRB-approved informed consent document (either directly or via a legally authorized representative).

Exclusion criteria

* Active malignancy or on-going cancer treatment including oral anti-estrogen therapy, immunotherapy, biologic therapy. * Men receiving androgen deprivation therapy * Use of Coumadin or Warfarin (other blood thinners are acceptable) * Symptomatic congestive heart failure * Lung disease requiring oxygen * End stage renal disease requiring dialysis * Inability to swallow capsules * Chronic nausea or diarrhea defined by a frequency of ≥ once per week * Hemoglobin \<10 g/dl * Diagnosis of dementia * Uncontrolled intercurrent illness including, but not limited to ongoing or active infection, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. * Known untreated hypothyroidism * Allergy to muscadine grapes or muscadine grape preparations

Design outcomes

Primary

MeasureTime frameDescription
Patient Reported Outcomes Measurement System (PROMIS) Fatigue 7a QuestionnaireAt baseline and at 12 weeks(PROMIS) Fatigue 7a will be used to assess fatigue. Using a mixed effects model with a constraint of a common baseline mean across treatment groups and an unstructured covariance matrix to model all fatigue measures over time, and use linear contrasts to estimate the difference in change and corresponding 90% confidence interval between the two groups. Item responses are rated on a five-point scale ranging from never to always and are summed for a total score and transformed to a T-score metric, which has a mean of 50 and a standard deviation of 10. Higher scores indicate more fatigue.

Secondary

MeasureTime frameDescription
Short Physical Performance Battery (SPPB)At 12 weeksThe Short Physical Performance Battery (SPPB) will be used to objectively assess lower extremity physical function. This validated measure comprises a short walk, repeated chair stands, and balance test. Each section is scored out of 4 points, so the highest total score for the SPPB is 12 points. Score range is 0-12. Poor (0-6), moderate 7-9) and good (10-12). Lower scores on the SPPB have been associated with increased risk of disability, hospitalization and worse survival among older adults with and without cancer. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.
Short Form Minnesota Leisure Time Activity Questionnaire (MLTA)At 12 weeksThis questionnaire will assess self-reported physical activity with participants answering yes/no questions in regards to physical activities done in the past two weeks and the frequency of those activities. Score is interpreted by calculating the total energy expenditure based on the frequency and duration of reported leisure activities, with higher scores indicating a greater level of physical activity; generally, scores are categorized as low (inactive), moderate (moderately active), and high (highly active). Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.
6-Minute Walk TestAt 12 weeksA 6-minute walk will be measured to assess physical fitness. The 6-minute walk is easy to administer in a clinical setting, accurately assesses submaximal exercise capacity, is an independent predictor of mortality and is correlated with peak V02 testing. The number of laps and distance walked on the final lap will be recorded. The total distance the participant walked will be entered onto the online database (1 lap = 30 meters distance). Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.
Pepper Assessment Tool for Disability (PAT-D) Questionnaire - Change From Baseline at 12 WeeksAt 12 weeksPepper Assessment Tool for Disability (PAT-D) will used to assess self-reported physical function. The (PAT-D) is a 19-item survey designed to assess domains of physical function in older adults which contains subscales on mobility, instrumental activities of daily living (IADLs), and basic activities of daily living (ADLs). Participant responses will best describe their ability to perform certain activities of daily living (On a scale of 1 to 5; 1 = usually did with no difficulty to 5 = unable to do. Minimum score of 19, max score of 95. A lower score indicates less difficulty with tasks and better function. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks reported as mean and standard error scores.
Patient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifeAt 12 weeksThe PROMIS Global Health Short Form (SF) is a 10-item questionnaire that will assess global quality of life including overall physical health, mental health, social health, pain, fatigue an overall perceived quality of life. Participants will respond to questions or statements with varied selections (excellent to poor; completely to not at all; never to always; and none to very severe). Scores above 50 are considered a better than average quality of life and scores below 50 are considered below average quality of life. Higher T-scores indicate better health, so scores around 50 are average, while scores below 40 suggest poor health warranting further assessment, and scores above 60 indicate excellent health. 50 indicates the population mean with a standard deviation of 10 Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.
Adherence - Pill Count12 weeksAdherence will be measured by pill count at study completion. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.
Fried Frailty IndexAt 12 weeksFrailty indexes will be assessed for differences between the two arms. The Fried frailty index is a scoring system that classifies people into three stages of frailty based on five criteria: weight loss, exhaustion, low physical activity, and slowness. Frailty index scores can be calculated by dividing the sum of the recoded values of the variables by the number of variables measured for a person. Corresponding scores are: Score of 0, non-frail; score of 1-2 pre-frail; score of 3-5 frail. Higher scores represent higher rates of frailty among participants. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.
Longitudinal Aging Study Amsterdam (LASA) Sedentary Behavior QuestionnaireAt 12 weeksThe questionnaire will be used to measure sedentary behavior for time spent during a 24 hour period for weekday and weekend various activities. The questionnaire consists of 10 items. The average time per 24 hours on each sedentary activity will be recorded in hours and/or minutes. Scores represent the self-reported average time an older adult spends engaged in sedentary activities (i.e., watching TV, reading, or sitting during a typical weekday and weekend day), with higher scores indicating a greater amount of time spent sedentary. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.

Countries

United States

Participant flow

Participants by arm

ArmCount
Muscadine Grape Extract Arm
Muscadine grape extract pill (12 week supply) Muscadine grape extract: Four pills twice daily Quality of Life Assessment: Ancillary studies Questionnaires: Ancillary studies Participant Feedback: Ancillary studies
32
Placebo Arm
Placebo provided (12 week supply) Placebo: Four pills twice daily. Quality of Life Assessment: Ancillary studies Questionnaires: Ancillary studies Participant Feedback: Ancillary studies
32
Total64

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up10
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicPlacebo ArmTotalMuscadine Grape Extract Arm
Age, Continuous75.8 Years
STANDARD_DEVIATION 5.7
75.8 Years
STANDARD_DEVIATION 5.5
75.8 Years
STANDARD_DEVIATION 5.4
Ethnicity (NIH/OMB)
Hispanic or Latino
30 Participants60 Participants30 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants4 Participants2 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants4 Participants2 Participants
Race (NIH/OMB)
More than one race
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
28 Participants58 Participants30 Participants
Region of Enrollment
United States
32 participants64 participants32 participants
Sex: Female, Male
Female
27 Participants50 Participants23 Participants
Sex: Female, Male
Male
5 Participants14 Participants9 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 320 / 32
other
Total, other adverse events
29 / 3228 / 32
serious
Total, serious adverse events
0 / 321 / 32

Outcome results

Primary

Patient Reported Outcomes Measurement System (PROMIS) Fatigue 7a Questionnaire

(PROMIS) Fatigue 7a will be used to assess fatigue. Using a mixed effects model with a constraint of a common baseline mean across treatment groups and an unstructured covariance matrix to model all fatigue measures over time, and use linear contrasts to estimate the difference in change and corresponding 90% confidence interval between the two groups. Item responses are rated on a five-point scale ranging from never to always and are summed for a total score and transformed to a T-score metric, which has a mean of 50 and a standard deviation of 10. Higher scores indicate more fatigue.

Time frame: At baseline and at 12 weeks

Population: Not all participants reported data for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Muscadine Grape Extract ArmPatient Reported Outcomes Measurement System (PROMIS) Fatigue 7a Questionnaire-6.6 score on a scaleStandard Error 1.1
Placebo ArmPatient Reported Outcomes Measurement System (PROMIS) Fatigue 7a Questionnaire-5.4 score on a scaleStandard Error 2.2
90% CI: [-3.5, 1.1]
Secondary

6-Minute Walk Test

A 6-minute walk will be measured to assess physical fitness. The 6-minute walk is easy to administer in a clinical setting, accurately assesses submaximal exercise capacity, is an independent predictor of mortality and is correlated with peak V02 testing. The number of laps and distance walked on the final lap will be recorded. The total distance the participant walked will be entered onto the online database (1 lap = 30 meters distance). Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.

Time frame: At 12 weeks

Population: Not all participants reported data for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Muscadine Grape Extract Arm6-Minute Walk Test369.8 metersStandard Error 22.1
Placebo Arm6-Minute Walk Test349.1 metersStandard Error 14.4
95% CI: [-32.4, 73.8]
Secondary

Adherence - Pill Count

Adherence will be measured by pill count at study completion. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.

Time frame: 12 weeks

Population: Not all participants reported data for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Muscadine Grape Extract ArmAdherence - Pill Count569.1 number of pillsStandard Error 35.4
Placebo ArmAdherence - Pill Count568.0 number of pillsStandard Error 35.8
95% CI: [-99.7, 101.9]
Secondary

Fried Frailty Index

Frailty indexes will be assessed for differences between the two arms. The Fried frailty index is a scoring system that classifies people into three stages of frailty based on five criteria: weight loss, exhaustion, low physical activity, and slowness. Frailty index scores can be calculated by dividing the sum of the recoded values of the variables by the number of variables measured for a person. Corresponding scores are: Score of 0, non-frail; score of 1-2 pre-frail; score of 3-5 frail. Higher scores represent higher rates of frailty among participants. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.

Time frame: At 12 weeks

Population: Not all participants reported data for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Muscadine Grape Extract ArmFried Frailty Index0.9 score on a scaleStandard Error 0.2
Placebo ArmFried Frailty Index0.9 score on a scaleStandard Error 0.2
95% CI: [-0.5, 0.5]
Secondary

Longitudinal Aging Study Amsterdam (LASA) Sedentary Behavior Questionnaire

The questionnaire will be used to measure sedentary behavior for time spent during a 24 hour period for weekday and weekend various activities. The questionnaire consists of 10 items. The average time per 24 hours on each sedentary activity will be recorded in hours and/or minutes. Scores represent the self-reported average time an older adult spends engaged in sedentary activities (i.e., watching TV, reading, or sitting during a typical weekday and weekend day), with higher scores indicating a greater amount of time spent sedentary. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.

Time frame: At 12 weeks

Population: Not all participants reported data for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Muscadine Grape Extract ArmLongitudinal Aging Study Amsterdam (LASA) Sedentary Behavior Questionnaire13.2 hoursStandard Error 1
Placebo ArmLongitudinal Aging Study Amsterdam (LASA) Sedentary Behavior Questionnaire12.7 hoursStandard Error 0.9
95% CI: [-2.2, 3.2]
Secondary

Patient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of Life

The PROMIS Global Health Short Form (SF) is a 10-item questionnaire that will assess global quality of life including overall physical health, mental health, social health, pain, fatigue an overall perceived quality of life. Participants will respond to questions or statements with varied selections (excellent to poor; completely to not at all; never to always; and none to very severe). Scores above 50 are considered a better than average quality of life and scores below 50 are considered below average quality of life. Higher T-scores indicate better health, so scores around 50 are average, while scores below 40 suggest poor health warranting further assessment, and scores above 60 indicate excellent health. 50 indicates the population mean with a standard deviation of 10 Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.

Time frame: At 12 weeks

Population: Not all participants reported data for this outcome measure.

ArmMeasureGroupValue (MEAN)Dispersion
Muscadine Grape Extract ArmPatient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifeQuality of Life - Self-rate health3.4 T scoreStandard Error 0.1
Muscadine Grape Extract ArmPatient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifeQuality of life - Ability to carry out social activities and roles3.9 T scoreStandard Error 0.2
Muscadine Grape Extract ArmPatient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifePhysical health (t score)47.2 T scoreStandard Error 1.2
Muscadine Grape Extract ArmPatient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifeMental health (t score)50.6 T scoreStandard Error 1.5
Placebo ArmPatient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifeMental health (t score)52.0 T scoreStandard Error 1.3
Placebo ArmPatient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifeQuality of Life - Self-rate health3.2 T scoreStandard Error 0.1
Placebo ArmPatient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifePhysical health (t score)46.3 T scoreStandard Error 1.3
Placebo ArmPatient-Reported Outcomes Measurement Information System (PROMIS) Global Health Short Form (SF) - Quality of LifeQuality of life - Ability to carry out social activities and roles3.7 T scoreStandard Error 0.2
Comparison: Quality of Life - Self-rate health95% CI: [-0.2, 0.7]
95% CI: [-0.3, 0.6]
Comparison: Physical health (t score)95% CI: [-2.7, 4.5]
Comparison: Global Mental health (t score95% CI: [-5.4, 2.5]
Secondary

Pepper Assessment Tool for Disability (PAT-D) Questionnaire - Change From Baseline at 12 Weeks

Pepper Assessment Tool for Disability (PAT-D) will used to assess self-reported physical function. The (PAT-D) is a 19-item survey designed to assess domains of physical function in older adults which contains subscales on mobility, instrumental activities of daily living (IADLs), and basic activities of daily living (ADLs). Participant responses will best describe their ability to perform certain activities of daily living (On a scale of 1 to 5; 1 = usually did with no difficulty to 5 = unable to do. Minimum score of 19, max score of 95. A lower score indicates less difficulty with tasks and better function. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks reported as mean and standard error scores.

Time frame: At 12 weeks

Population: Not all participants reported data for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Muscadine Grape Extract ArmPepper Assessment Tool for Disability (PAT-D) Questionnaire - Change From Baseline at 12 Weeks1.4 mean score on a scaleStandard Error 0.1
Placebo ArmPepper Assessment Tool for Disability (PAT-D) Questionnaire - Change From Baseline at 12 Weeks1.6 mean score on a scaleStandard Error 0.1
95% CI: [-0.5, 0.1]
Secondary

Short Form Minnesota Leisure Time Activity Questionnaire (MLTA)

This questionnaire will assess self-reported physical activity with participants answering yes/no questions in regards to physical activities done in the past two weeks and the frequency of those activities. Score is interpreted by calculating the total energy expenditure based on the frequency and duration of reported leisure activities, with higher scores indicating a greater level of physical activity; generally, scores are categorized as low (inactive), moderate (moderately active), and high (highly active). Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.

Time frame: At 12 weeks

ArmMeasureValue (MEAN)Dispersion
Muscadine Grape Extract ArmShort Form Minnesota Leisure Time Activity Questionnaire (MLTA)3218 kcal/weekStandard Error 517
Placebo ArmShort Form Minnesota Leisure Time Activity Questionnaire (MLTA)4192 kcal/weekStandard Error 1141
95% CI: [-3500, 1553]
Secondary

Short Physical Performance Battery (SPPB)

The Short Physical Performance Battery (SPPB) will be used to objectively assess lower extremity physical function. This validated measure comprises a short walk, repeated chair stands, and balance test. Each section is scored out of 4 points, so the highest total score for the SPPB is 12 points. Score range is 0-12. Poor (0-6), moderate 7-9) and good (10-12). Lower scores on the SPPB have been associated with increased risk of disability, hospitalization and worse survival among older adults with and without cancer. Investigators will estimate 95% confidence intervals for the differences between the two groups for the secondary outcomes at 12 weeks.

Time frame: At 12 weeks

ArmMeasureValue (MEAN)Dispersion
Muscadine Grape Extract ArmShort Physical Performance Battery (SPPB)9.8 pointsStandard Error 0.5
Placebo ArmShort Physical Performance Battery (SPPB)9.2 pointsStandard Error 0.5
95% CI: [-0.7, 2]

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026