Trial Outcomes & Findings for Compression Hosiery to Avoid Post-Thrombotic Syndrome (NCT NCT04103112)

NCT ID: NCT04103112

Last Updated: 2024-03-07

Results Overview

Measured using the validated Villalta criteria

Recruitment status

TERMINATED

Study phase

NA

Target enrollment

152 participants

Primary outcome timeframe

30 months

Results posted on

2024-03-07

Participant Flow

Participant milestones

Participant milestones
Measure
Standard Clinical Care
Standard clinical care (anticoagulation) with no graduated compression stocking
Graduated Compression Stocking and Standard Clinical Care
A graduated compression stocking and the standard clinical care (anticoagulation) Graduated compression stocking: Compression stockings have been used safely in the UK for about 50 years. They contain an elastic fibre designed to fit tightly around the legs. These specialist stockings are tighter around the ankle, with the level of compression gradually decreasing up the garment. The pressure created by the stockings helps blood flow up the leg, allowing blood to flow freely to the heart and not pool in the leg which can result in pain and swelling.
Overall Study
STARTED
76
76
Overall Study
COMPLETED
55
56
Overall Study
NOT COMPLETED
21
20

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Compression Hosiery to Avoid Post-Thrombotic Syndrome

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Standard Clinical Care
n=76 Participants
Standard clinical care (anticoagulation) with no graduated compression stocking
Graduated Compression Stocking and Standard Clinical Care
n=76 Participants
A graduated compression stocking and the standard clinical care (anticoagulation) Graduated compression stocking: Compression stockings have been used safely in the UK for about 50 years. They contain an elastic fibre designed to fit tightly around the legs. These specialist stockings are tighter around the ankle, with the level of compression gradually decreasing up the garment. The pressure created by the stockings helps blood flow up the leg, allowing blood to flow freely to the heart and not pool in the leg which can result in pain and swelling.
Total
n=152 Participants
Total of all reporting groups
Age, Continuous
58.5 years
STANDARD_DEVIATION 14.2 • n=99 Participants
56.2 years
STANDARD_DEVIATION 14.8 • n=107 Participants
57.3 years
STANDARD_DEVIATION 14.5 • n=206 Participants
Sex: Female, Male
Female
20 Participants
n=99 Participants
29 Participants
n=107 Participants
49 Participants
n=206 Participants
Sex: Female, Male
Male
56 Participants
n=99 Participants
47 Participants
n=107 Participants
103 Participants
n=206 Participants
Race/Ethnicity, Customized
White
66 Participants
n=99 Participants
58 Participants
n=107 Participants
124 Participants
n=206 Participants
Race/Ethnicity, Customized
Mixed Race/Multiple Ethnic Background
2 Participants
n=99 Participants
1 Participants
n=107 Participants
3 Participants
n=206 Participants
Race/Ethnicity, Customized
Asian or Asian British
2 Participants
n=99 Participants
8 Participants
n=107 Participants
10 Participants
n=206 Participants
Race/Ethnicity, Customized
Black or Black British
3 Participants
n=99 Participants
6 Participants
n=107 Participants
9 Participants
n=206 Participants
Race/Ethnicity, Customized
Other
3 Participants
n=99 Participants
3 Participants
n=107 Participants
6 Participants
n=206 Participants
Region of Enrollment
United Kingdom
76 participants
n=99 Participants
76 participants
n=107 Participants
152 participants
n=206 Participants

PRIMARY outcome

Timeframe: 30 months

Measured using the validated Villalta criteria

Outcome measures

Outcome measures
Measure
Standard Clinical Care
n=55 Participants
Standard clinical care (anticoagulation) with no graduated compression stocking
Graduated Compression Stocking and Standard Clinical Care
n=56 Participants
A graduated compression stocking and the standard clinical care (anticoagulation) Graduated compression stocking: Compression stockings have been used safely in the UK for about 50 years. They contain an elastic fibre designed to fit tightly around the legs. These specialist stockings are tighter around the ankle, with the level of compression gradually decreasing up the garment. The pressure created by the stockings helps blood flow up the leg, allowing blood to flow freely to the heart and not pool in the leg which can result in pain and swelling.
Incidence of Post Thrombotic Syndrome (PTS)
Index-Leg
28 Number of PTS events
17 Number of PTS events
Incidence of Post Thrombotic Syndrome (PTS)
Non-Index-Leg
6 Number of PTS events
9 Number of PTS events

SECONDARY outcome

Timeframe: 30 months

Measured using the validated Villalta criteria

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 30 months

Change in number of days working from baseline

Outcome measures

Outcome measures
Measure
Standard Clinical Care
n=76 Participants
Standard clinical care (anticoagulation) with no graduated compression stocking
Graduated Compression Stocking and Standard Clinical Care
n=76 Participants
A graduated compression stocking and the standard clinical care (anticoagulation) Graduated compression stocking: Compression stockings have been used safely in the UK for about 50 years. They contain an elastic fibre designed to fit tightly around the legs. These specialist stockings are tighter around the ankle, with the level of compression gradually decreasing up the garment. The pressure created by the stockings helps blood flow up the leg, allowing blood to flow freely to the heart and not pool in the leg which can result in pain and swelling.
Employment Status
Full time
34 Participants
34 Participants
Employment Status
Part time
8 Participants
9 Participants
Employment Status
Unemployed
7 Participants
5 Participants
Employment Status
Retired
26 Participants
27 Participants
Employment Status
Student
1 Participants
0 Participants
Employment Status
Missing
0 Participants
1 Participants

SECONDARY outcome

Timeframe: 18 months

Measured using VEINES-QoL scale (instrument to measure quality of life in deep venous thrombosis). Two summary scores can be computed. The VEINES-QOL summary score (25 items) provides an estimate of the overall impact of deep venous thrombosis on the patient's quality of life. The VEINES-Sym summary score (10 items) measures symptom severity. Higher scores indicate better outcomes.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 18 months

Measured using EuroQoL EQ5D scale (European Quality of Life 5D instrument for measuring generic health status) . A health index on a score of 0 to 1 and the participants' self-rated health on a vertical score of zero to 100. Higher scores indicate better quality of life.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 30 months

Patient self-report - at six months median follow up, the criteria for continuing CHAPS is equal to or over 70% of participants wearing stockings (monthly self-reported patient adherence questionnaire) for equal to or over 4 days per week in the intervention arm, along with a documented reorder of stockings within the last 6 months.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 30 months

Incremental cost-effectiveness ratio (ICER) from the EQ-5D questionnaire, with appropriate sensitivity analysis

Outcome measures

Outcome data not reported

Adverse Events

Standard Clinical Care

Serious events: 5 serious events
Other events: 5 other events
Deaths: 1 deaths

Graduated Compression Stocking and Standard Clinical Care

Serious events: 2 serious events
Other events: 6 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Standard Clinical Care
n=76 participants at risk
Standard clinical care (anticoagulation) with no graduated compression stocking
Graduated Compression Stocking and Standard Clinical Care
n=76 participants at risk
A graduated compression stocking and the standard clinical care (anticoagulation) Graduated compression stocking: Compression stockings have been used safely in the UK for about 50 years. They contain an elastic fibre designed to fit tightly around the legs. These specialist stockings are tighter around the ankle, with the level of compression gradually decreasing up the garment. The pressure created by the stockings helps blood flow up the leg, allowing blood to flow freely to the heart and not pool in the leg which can result in pain and swelling.
Respiratory, thoracic and mediastinal disorders
Exacerbation of asthma
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Left posterior Stroke; PE
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Nervous system disorders
Acute MCA infarction
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Blood and lymphatic system disorders
Admitted with nose bleed and pr bleed; rectal ca with mets - on palliative chemotherapy
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Blood and lymphatic system disorders
Pr bleeding, thrombocytopaenia
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Death
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Blood and lymphatic system disorders
Dizziness, collapse, black stools, lack of appetite
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)

Other adverse events

Other adverse events
Measure
Standard Clinical Care
n=76 participants at risk
Standard clinical care (anticoagulation) with no graduated compression stocking
Graduated Compression Stocking and Standard Clinical Care
n=76 participants at risk
A graduated compression stocking and the standard clinical care (anticoagulation) Graduated compression stocking: Compression stockings have been used safely in the UK for about 50 years. They contain an elastic fibre designed to fit tightly around the legs. These specialist stockings are tighter around the ankle, with the level of compression gradually decreasing up the garment. The pressure created by the stockings helps blood flow up the leg, allowing blood to flow freely to the heart and not pool in the leg which can result in pain and swelling.
Vascular disorders
Varicose veins
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Vascular disorders
Edema
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Metabolism and nutrition disorders
Gout flare-ups increased in severity since taking warfarin; patient noted an increase in pain
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Vascular disorders
Leg pain and swelling to left leg.
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Musculoskeletal and connective tissue disorders
Discomfort of fifth toe
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
Musculoskeletal and connective tissue disorders
Indentation from stocking
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
Musculoskeletal and connective tissue disorders
Soreness medial aspect of the shin
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
Nervous system disorders
Pins and needles at the end of first full day of wearing stockings
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
Musculoskeletal and connective tissue disorders
Bruising to leg
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
Vascular disorders
Patient seen by vascular team and advised to wear class II hoisery
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
Vascular disorders
Acute & chronic DVT of left leg
0.00%
0/76 • Through participant's study completion, 6-30 months (median 18 months)
1.3%
1/76 • Through participant's study completion, 6-30 months (median 18 months)

Additional Information

Professor Alun Davies

Imperial College London

Phone: 02033117320

Results disclosure agreements

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