Trial Outcomes & Findings for An AHEI Dietary Intervention to Reduce Pain in Women With Endometriosis (NCT NCT04259788)

NCT ID: NCT04259788

Last Updated: 2026-04-13

Results Overview

Pain will be measured with components of the EPHect participant questionnaire using the VAS pain score. Scores range from 0 to 10, higher score is more pain (worse).

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

109 participants

Primary outcome timeframe

Baseline to 12 weeks

Results posted on

2026-04-13

Participant Flow

Tailored, adaptive social media advertisements were developed and implemented by BuildClinical, LLC, and the Fred Hutch Marketing and Communications Social Media Team. Flyers/brochures were distributed at local and national organizations. Participants were also recruited from Kaiser Permanente Washington (KPW). Potentially eligible KPW members aged 18-45 years were identified using Kaiser Permanente Washington Health Research Institute (KPWHRI) electronic administrative and clinical data.

Participant milestones

Participant milestones
Measure
Intervention
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines. Participants in this arm will be asked to consume this diet for a 12-week period. During the first 4 weeks meals and snacks will be shipped to the participant. During the last 8 weeks of the intervention, the study will provide the participants with a 14-day meal plan (3 meals and 2 snacks) that adheres to the AHEI maximum score criteria to help facilitate adherence to the diet.
Control
Participants in this arm will not receive the dietary intervention.
Overall Study
STARTED
51
58
Overall Study
COMPLETED
36
43
Overall Study
NOT COMPLETED
15
15

Reasons for withdrawal

Reasons for withdrawal
Measure
Intervention
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines. Participants in this arm will be asked to consume this diet for a 12-week period. During the first 4 weeks meals and snacks will be shipped to the participant. During the last 8 weeks of the intervention, the study will provide the participants with a 14-day meal plan (3 meals and 2 snacks) that adheres to the AHEI maximum score criteria to help facilitate adherence to the diet.
Control
Participants in this arm will not receive the dietary intervention.
Overall Study
Lost to Follow-up
15
15

Baseline Characteristics

An AHEI Dietary Intervention to Reduce Pain in Women With Endometriosis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Control
n=58 Participants
Participants in this arm will not receive the dietary intervention.
Intervention
n=48 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines. Participants in this arm will be asked to consume this diet for a 12-week period. During the first 4 weeks meals and snacks will be shipped to the participant. During the last 8 weeks of the intervention, the study will provide the participants with a 14-day meal plan (3 meals and 2 snacks) that adheres to the AHEI maximum score criteria to help facilitate adherence to the diet.
Total
n=106 Participants
Total of all reporting groups
Age, Continuous
33.1 years
STANDARD_DEVIATION 6.2 • n=193 Participants
32.8 years
STANDARD_DEVIATION 8.1 • n=193 Participants
32.8 years
STANDARD_DEVIATION 6.2 • n=386 Participants
Sex/Gender, Customized
Female
58 Participants
n=193 Participants
48 Participants
n=193 Participants
106 Participants
n=386 Participants
Race/Ethnicity, Customized
White
44 Participants
n=193 Participants
34 Participants
n=193 Participants
78 Participants
n=386 Participants
Race/Ethnicity, Customized
Asian/Pacific Islander
5 Participants
n=193 Participants
4 Participants
n=193 Participants
9 Participants
n=386 Participants
Race/Ethnicity, Customized
Black
3 Participants
n=193 Participants
1 Participants
n=193 Participants
4 Participants
n=386 Participants
Race/Ethnicity, Customized
Multiple races
4 Participants
n=193 Participants
5 Participants
n=193 Participants
9 Participants
n=386 Participants
Race/Ethnicity, Customized
Not reported
2 Participants
n=193 Participants
4 Participants
n=193 Participants
6 Participants
n=386 Participants
Baseline acyclic pelvic pain
7.0 units on a scale
STANDARD_DEVIATION 2.6 • n=193 Participants
7.1 units on a scale
STANDARD_DEVIATION 3.0 • n=193 Participants
7.0 units on a scale
STANDARD_DEVIATION 2.8 • n=386 Participants

PRIMARY outcome

Timeframe: Baseline to 12 weeks

Pain will be measured with components of the EPHect participant questionnaire using the VAS pain score. Scores range from 0 to 10, higher score is more pain (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=48 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=58 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Acyclic Pain
Baseline
7.1 VAS pain score
95% Confidence Interval 3.0 • Interval 6.3 to 7.9
7.0 VAS pain score
95% Confidence Interval 2.6 • Interval 6.2 to 7.7
Pain Measurement - Acyclic Pain
12-weeks
4.7 VAS pain score
Interval 3.8 to 5.6
6.7 VAS pain score
Interval 5.9 to 7.5

PRIMARY outcome

Timeframe: Baseline

Pain will be measured with components of the EPHect participant questionnaire using the pain catastrophizing scale. Scores range from 0 to 52, higher scores indicate a greater amount of catastrophizing (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=48 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=58 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Pain Catastrophizing
24.3 Pain catastrophizing score
95% Confidence Interval 20.7 • Interval 20.7 to 27.9
25.5 Pain catastrophizing score
95% Confidence Interval 22.2 • Interval 22.2 to 28.8

PRIMARY outcome

Timeframe: Baseline

Pain will be measured with components of the EPHect participant questionnaire using the mean number of analgesic and/or opioid pills taken per week.

Outcome measures

Outcome measures
Measure
Intervention
n=48 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=58 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Pills
16.4 Pain pills per week
Interval 11.5 to 21.2
17.4 Pain pills per week
Interval 13.0 to 21.8

PRIMARY outcome

Timeframe: Baseline to 12 weeks

QOL will be measured with the Endometriosis Health Profile Questionnaire. Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=48 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=58 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life EHP-30
Baseline
58.2 score on a scale
Interval 53.8 to 62.7
61.8 score on a scale
Interval 57.8 to 65.9
Quality of Life EHP-30
12 weeks
36.7 score on a scale
Interval 30.1 to 43.2
51.5 score on a scale
Interval 45.6 to 57.4

PRIMARY outcome

Timeframe: Baseline to 12 weeks

Mental QOL will be measured with the SF-12 Mental Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=48 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=58 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 MC
Baseline
37.7 score on a scale
Interval 35.5 to 40.0
35.9 score on a scale
Interval 33.8 to 38.0
Quality of Life SF-12 MC
12 weeks
42.3 score on a scale
Interval 39.4 to 45.2
38.8 score on a scale
Interval 36.2 to 41.4

PRIMARY outcome

Timeframe: Baseline

Physical QOL will be measured with the SF-12 Physical Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=48 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=58 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 PC
41.1 score on a scale
Interval 38.6 to 43.6
41.8 score on a scale
Interval 39.5 to 44.1

PRIMARY outcome

Timeframe: Baseline

Measurement of circulating levels of inflammatory markers (interleukin (IL)-6) with SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=5 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=12 Participants
Participants in this arm will not receive the dietary intervention.
Inflammatory Markers
243.6 relative fluorescence units (RFU)
Interval 207.0 to 280.2
235.9 relative fluorescence units (RFU)
Interval 212.3 to 259.6

PRIMARY outcome

Timeframe: Baseline

Measurement of circulating levels of high sensitivity-C-reactive protein with SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=5 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=12 Participants
Participants in this arm will not receive the dietary intervention.
Protein Measurement
43421 relative fluorescence units (RFU)
Interval 13720.0 to 73122.0
42929 relative fluorescence units (RFU)
Interval 23757.0 to 62101.0

PRIMARY outcome

Timeframe: Baseline

Measurement of circulating levels of soluble tumor necrosis factor (TNF) alpha-receptor 1 with SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=12 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=5 Participants
Participants in this arm will not receive the dietary intervention.
Tumor Necrosis Factor Measurement
8270.7 relative fluorescence units (RFU)
Interval 6920.6 to 9620.7
7542.2 relative fluorescence units (RFU)
Interval 5450.7 to 9633.8

PRIMARY outcome

Timeframe: Baseline

Measurement of circulating levels of soluble TNF alpha-receptor 2 with SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=5 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=12 Participants
Participants in this arm will not receive the dietary intervention.
Tumor Necrosis Factor Measurement #2
1517.6 relative fluorescence units (RFU)
Interval 1088.4 to 1964.8
1584.7 relative fluorescence units (RFU)
Interval 1307.77 to 1861.8

PRIMARY outcome

Timeframe: Week 4

Pain will be measured with components of the EPHect participant questionnaire using the VAS pain score. Scores range from 0 to 10, higher score is more pain (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=40 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=48 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Acyclic Pain
6.3 score on a scale
Interval 5.5 to 7.1
6.9 score on a scale
Interval 6.2 to 7.7

PRIMARY outcome

Timeframe: Week 4

Pain will be measured with components of the EPHect participant questionnaire using the pain catastrophizing scale. Scores range from 0 to 52, higher scores indicate a greater amount of catastrophizing (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=40 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=48 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Pain Catastrophizing
16.7 pain catastrophizing score
Interval 13.0 to 20.3
23.0 pain catastrophizing score
Interval 19.7 to 26.2

PRIMARY outcome

Timeframe: Week 4

Pain will be measured with components of the EPHect participant questionnaire using the mean number of analgesic and/or opioid pills taken per week.

Outcome measures

Outcome measures
Measure
Intervention
n=41 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=50 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Pills
12.4 Pain pills per week
Interval 8.4 to 16.5
15.1 Pain pills per week
Interval 11.5 to 18.7

PRIMARY outcome

Timeframe: Week 4

QOL will be measured with the Endometriosis Health Profile Questionnaire. Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=40 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=48 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life EHP-30
39.3 score on a scale
Interval 34.1 to 44.5
56.0 score on a scale
Interval 51.3 to 60.7

PRIMARY outcome

Timeframe: Week 4

Physical QOL will be measured with the SF-12 Physical Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=40 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=48 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 PC
44.8 score on a scale
Interval 41.9 to 47.6
41.2 score on a scale
Interval 38.6 to 43.8

PRIMARY outcome

Timeframe: Week 4

Mental QOL will be measured with the SF-12 Mental Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=40 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=48 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 MC
42.2 score on a scale
Interval 39.8 to 44.5
38.3 score on a scale
Interval 36.2 to 40.5

PRIMARY outcome

Timeframe: Week 4

Measurement of circulating levels of inflammatory markers (interleukin (IL)-6 with SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=5 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=9 Participants
Participants in this arm will not receive the dietary intervention.
Inflammatory Markers
243.8 relative fluorescence units (RFU)
Interval 217.7 to 269.8
232.2 relative fluorescence units (RFU)
Interval 214.8 to 249.7

PRIMARY outcome

Timeframe: Week 4

Measurement of circulating levels of high sensitivity-C-reactive protein with SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=5 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=9 Participants
Participants in this arm will not receive the dietary intervention.
Protein Measurement
34550 relative fluorescence units (RFU)
Interval 5808.6 to 63292.0
35078 relative fluorescence units (RFU)
Interval 16323.0 to 53833.0

PRIMARY outcome

Timeframe: Week 4

Measurement of circulating levels of soluble tumor necrosis factor (TNF) alpha-receptor 1 from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=5 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=9 Participants
Participants in this arm will not receive the dietary intervention.
Tumor Necrosis Factor Measurement
7528.1 relative fluorescence units (RFU)
Interval 6227.7 to 8828.5
7853.3 relative fluorescence units (RFU)
Interval 6923.1 to 8782.4

PRIMARY outcome

Timeframe: Week 4

Measurement of circulating levels of soluble TNF alpha-receptor 2 from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=5 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=9 Participants
Participants in this arm will not receive the dietary intervention.
Tumor Necrosis Factor Measurement #2
1474.3 relative fluorescence units (RFU)
Interval 1189.4 to 1759.3
1511.4 relative fluorescence units (RFU)
Interval 1300.0 to 1722.1

PRIMARY outcome

Timeframe: Week 8

Pain will be measured with components of the EPHect participant questionnaire using the VAS pain score. Scores range from 0 to 10, higher score is more pain (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=36 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=45 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Acyclic Pelvic Pain
5.5 VAS pain score
Interval 4.6 to 6.4
6.2 VAS pain score
Interval 5.4 to 7.0

PRIMARY outcome

Timeframe: Week 8

Pain will be measured with components of the EPHect participant questionnaire using the pain catastrophizing scale. Scores range from 0 to 52, higher scores indicate a greater amount of catastrophizing (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=37 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=45 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Pain Catastrophizing Score
14.2 pain catastrophizing score
Interval 10.2 to 18.2
21.7 pain catastrophizing score
Interval 18.1 to 24.4

PRIMARY outcome

Timeframe: Week 8

Pain will be measured with components of the EPHect participant questionnaire using the mean number of analgesic and/or opioid pills taken per week.

Outcome measures

Outcome measures
Measure
Intervention
n=37 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=48 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Pills
11.9 Pain pills per week
Interval 8.3 to 15.5
12.7 Pain pills per week
Interval 9.5 to 15.9

PRIMARY outcome

Timeframe: Week 8

QOL will be measured with the Endometriosis Health Profile Questionnaire. Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=36 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=45 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life EHP-30
37.7 score on a scale
Interval 31.7 to 43.7
52.2 score on a scale
Interval 46.8 to 57.5

PRIMARY outcome

Timeframe: Week 8

Physical QOL will be measured with the SF-12 Physical Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=37 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=46 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 PC
46.1 score on a scale
Interval 43.2 to 48.9
43.3 score on a scale
Interval 40.7 to 45.8

PRIMARY outcome

Timeframe: Week 8

Mental QOL will be measured with the SF-12 Mental Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=37 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=46 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 MC
42.1 score on a scale
Interval 39.6 to 44.5
36.2 score on a scale
Interval 34.0 to 38.4

PRIMARY outcome

Timeframe: Week 8

Measurement of circulating levels of inflammatory markers (interleukin (IL)-6 from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=3 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=8 Participants
Participants in this arm will not receive the dietary intervention.
Inflammatory Markers
267.7 relative fluorescence units (RFU)
Interval 211.3 to 323.9
227.4 relative fluorescence units (RFU)
Interval 190.6 to 264.2

PRIMARY outcome

Timeframe: Week 8

Measurement of circulating levels of high sensitivity-C-reactive protein from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=3 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=8 Participants
Participants in this arm will not receive the dietary intervention.
Protein Measurement
31649 relative fluorescence units (RFU)
Interval 1199.4 to 62098.0
34127 relative fluorescence units (RFU)
Interval 14924.0 to 53425.0

PRIMARY outcome

Timeframe: Week 8

Measurement of circulating levels of soluble tumor necrosis factor (TNF) alpha-receptor 1 from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=3 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=8 Participants
Participants in this arm will not receive the dietary intervention.
Tumor Necrosis Factor Measurement
8429.8 relative fluorescence units (RFU)
Interval 5578.1 to 11282.0
8136.6 relative fluorescence units (RFU)
Interval 6306.3 to 9966.9

PRIMARY outcome

Timeframe: Week 8

Measurement of circulating levels of soluble TNF alpha-receptor 2 from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=3 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=8 Participants
Participants in this arm will not receive the dietary intervention.
Tumor Necrosis Factor Measurement #2
1694.3 relative fluorescence units (RFU)
Interval 1184.1 to 2204.4
1591 relative fluorescence units (RFU)
Interval 1258.0 to 1924.0

PRIMARY outcome

Timeframe: Week 12

Pain will be measured with components of the EPHect participant questionnaire using the VAS pain score. Scores range from 0 to 10, higher score is more pain (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=36 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=43 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Acyclic Pelvic Pain
4.7 score on a scale
Interval 3.8 to 5.6
6.7 score on a scale
Interval 5.9 to 7.5

PRIMARY outcome

Timeframe: Week 12

Pain will be measured with components of the EPHect participant questionnaire using the pain catastrophizing scale. Scores range from 0 to 52, higher scores indicate a greater amount of catastrophizing (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=36 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=43 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Pain Catastrophizing Score
13.6 pain catastrophizing score
Interval 9.5 to 17.7
21.3 pain catastrophizing score
Interval 17.6 to 25.0

PRIMARY outcome

Timeframe: Week 12

Pain will be measured with components of the EPHect participant questionnaire using the mean number of analgesic and/or opioid pills taken per week.

Outcome measures

Outcome measures
Measure
Intervention
n=38 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=45 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Pills
12.2 Pain pills per week
Interval 8.8 to 15.6
12.4 Pain pills per week
Interval 9.3 to 15.5

PRIMARY outcome

Timeframe: Week 12

QOL will be measured with the Endometriosis Health Profile Questionnaire. Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=36 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=43 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life EHP-30
36.7 score on a scale
Interval 30.1 to 43.2
51.5 score on a scale
Interval 45.6 to 57.4

PRIMARY outcome

Timeframe: Week 12

Physical QOL will be measured with the SF-12 Physical Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=36 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=43 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 PC
45.5 score on a scale
Interval 42.9 to 48.1
43.4 score on a scale
Interval 41.1 to 45.8

PRIMARY outcome

Timeframe: Week 12

Mental QOL will be measured with the SF-12 Mental Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=36 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=43 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 MC
42.3 score on a scale
Interval 39.4 to 45.2
38.8 score on a scale
Interval 36.2 to 41.4

PRIMARY outcome

Timeframe: Week 12

Measurement of circulating levels of inflammatory markers (interleukin (IL)-6 from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=4 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=7 Participants
Participants in this arm will not receive the dietary intervention.
Inflammatory Markers
236.0 relative fluorescence units (RFU)
Interval 181.8 to 290.3
228.6 relative fluorescence units (RFU)
Interval 181.8 to 290.3

PRIMARY outcome

Timeframe: Week 12

Measurement of circulating levels of high sensitivity-C-reactive protein from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=4 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=7 Participants
Participants in this arm will not receive the dietary intervention.
Protein Measurement
33287 relative fluorescence units (RFU)
Interval 4128.5 to 62446.0
34894 relative fluorescence units (RFU)
Interval 15707.0 to 54080.0

PRIMARY outcome

Timeframe: Week 12

Measurement of circulating levels of soluble tumor necrosis factor (TNF) alpha-receptor 1 from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=4 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=7 Participants
Participants in this arm will not receive the dietary intervention.
Tumor Necrosis Factor Measurement
7136.3 relative fluorescence units (RFU)
Interval 4808.0 to 9464.6
7503.6 relative fluorescence units (RFU)
Interval 5826.5 to 9180.8

PRIMARY outcome

Timeframe: Week 12

Measurement of circulating levels of soluble TNF alpha-receptor 2 from SomaScan

Outcome measures

Outcome measures
Measure
Intervention
n=4 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=7 Participants
Participants in this arm will not receive the dietary intervention.
Tumor Necrosis Factor Measurement #2
1531.6 relative fluorescence units (RFU)
Interval 981.2 to 2082.1
1677 relative fluorescence units (RFU)
Interval 1314.4 to 2040.1

SECONDARY outcome

Timeframe: 6 months

Pain will be measured with components of the EPHect participant questionnaire using the VAS pain score. Scores range from 0 to 10, higher score is more pain (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=32 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=33 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Acyclic Pelvic Pain
5 VAS pain score
Standard Deviation 3
5 VAS pain score
Standard Deviation 3

SECONDARY outcome

Timeframe: 12 months

Pain will be measured with components of the EPHect participant questionnaire using the VAS pain score. Scores range from 0 to 10, higher score is more pain (worse).

Outcome measures

Outcome measures
Measure
Intervention
n=25 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=28 Participants
Participants in this arm will not receive the dietary intervention.
Pain Measurement - Acyclic Pelvic Pain
4 VAS pain score
Standard Deviation 3
5 VAS pain score
Standard Deviation 3

SECONDARY outcome

Timeframe: 6 months

QOL will be measured with the Endometriosis Health Profile Questionnaire. Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=32 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=33 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life EHP-30
40 score on a scale
Standard Deviation 20
48 score on a scale
Standard Deviation 26

SECONDARY outcome

Timeframe: 12 months

Physical QOL will be measured with the SF-12 Physical Component Summary (MCS). Scores range from 0 to 100, higher scores reflect more symptoms and worse health status.

Outcome measures

Outcome measures
Measure
Intervention
n=25 Participants
The intervention group will receive in-person dietary counseling from a registered dietitian to help participants consume a diet that is consistent the AHEI dietary guidelines.
Control
n=28 Participants
Participants in this arm will not receive the dietary intervention.
Quality of Life SF-12 PC
31 score on a scale
Standard Deviation 21
44 score on a scale
Standard Deviation 30

Adverse Events

Intervention

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Control

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Holly Harris

Fred Hutchinson Cancer Center

Phone: 2066672712

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place