search
Back to results

Lowering Events in Non-proliferative Retinopathy in Scotland (LENS)

Primary Purpose

Diabetic Retinopathy

Status
Active
Phase
Phase 4
Locations
United Kingdom
Study Type
Interventional
Intervention
Fenofibrate 145 mg
Placebo Oral Tablet
Sponsored by
University of Oxford
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Diabetic Retinopathy

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Capable of giving informed consent
  2. Diabetes Mellitus (any type except gestational diabetes)
  3. Observable diabetic retinopathy/maculopathy (defined based on NHS Scotland grading criteria as: R1 in both eyes or R2 in one/both eyes at the most recent retinal screening assessment; or M1 in one/both eyes at any retinal screening assessment in the 3 years)
  4. Willing to either complete electronic questionnaires or conduct telephone interviews for collection of data once every 6 months

Exclusion Criteria:

  1. Clinically significant DR (defined as R3 or R4 or M2 in one or both eyes)
  2. History of gallbladder disease (cholecystitis, symptomatic gallstones, cholecystectomy)
  3. History of acute or chronic pancreatitis
  4. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2X the upper limit of normal (ULN) according to local NHS laboratory reference range at screening visit
  5. ALT or AST >2.5X ULN according to local NHS laboratory reference range at randomisation visit
  6. Creatine kinase (CK) >3X ULN according to local NHS laboratory reference range at screening visit
  7. CK >3X ULN according to local NHS laboratory reference range at randomisation visit
  8. Estimated glomerular filtration rate (eGFR) <40mL/min/1.73m2 at screening visit
  9. eGFR <30mL/min/1.73m2 at randomisation visit
  10. Cirrhosis of any aetiology or any other serious hepatic disease (investigator opinion)
  11. Female who is pregnant, breastfeeding, currently trying to become pregnant, or of child-bearing potential and not practising birth control
  12. Ongoing vitamin K antagonist (warfarin, phenindione, acenocoumarol), cyclosporine, colchicine, ketoprofen, daptomycin, fibrate therapy, or treatment with rosuvastatin 40mg daily
  13. Previous myositis, myopathy or rhabdomyolysis of any cause, or diagnosed hereditary muscle disorder
  14. Ongoing renal replacement therapy
  15. Any previous organ transplant
  16. Previous reported intolerance to any fibrate
  17. Medical history that might limit the individual's ability to take trial treatments for the duration of the study (e.g. severe respiratory disease, history of cancer within last 5 years other than non-melanoma skin cancer; or recent history of alcohol or substance misuse)
  18. Any other significant disease or disorder which, in the opinion of the Investigator, may either put the participant at risk because of participation in the trial, or may influence the result of the trial, or the participant's ability to participate in the trial
  19. LENS participants can participate in other research studies, including clinical trials. The only exclusions related to co-enrolment will be: if any other study or trial excludes co-enrolment or if the intervention being investigated in another trial has the potential to interact with fenofibrate therapy.
  20. Not adherent to active run-in treatment

Sites / Locations

  • NHS Grampian
  • NHS Lanarkshire
  • NHS Ayrshire and Arran
  • NHS Dumfries and Galloway
  • NHS Tayside
  • NHS Fife
  • NHS Lanarkshire
  • NHS Lothian
  • NHS Greater Glasgow and Clyde
  • NHS Highland
  • NHS Ayrshire and Arran
  • NHS Fife
  • NHS Forth Valley
  • NHS Borders
  • NHS Tayside
  • NHS Lanarkshire

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Placebo Comparator

Arm Label

Fenofibrate 145 mg

Placebo Oral Tablet

Arm Description

Name: fenofibrate; Form: tablet; Dosage: 145 mg; Frequency: one tablet daily with normal renal function, one tablet every 2nd day with chronic kidney disease

Name: placebo; Form: tablet; Dosage: not applicable; Frequency: one tablet daily with normal renal function, one tablet every 2nd day with chronic kidney disease

Outcomes

Primary Outcome Measures

Progression to referable diabetic retinopathy/maculopathy
The composite of progression to referable diabetic retinopathy/maculopathy or any of retinal laser therapy, vitrectomy or intra-vitreal injection of medication for the treatment of diabetic retinopathy/maculopathy Referable diabetic retinopathy is defined according to NHS Scotland's grading criteria.

Secondary Outcome Measures

Components of the primary outcome (progression to referable diabetic retinopathy/maculopathy; retinal laser therapy; vitrectomy; intra-vitreal injection of medication for treatment of diabetic retinopathy/maculopathy) reported separately
Number of participants, respectively, in whom the following outcomes occur, reported separately: Number of participants with progression of diabetic retinopathy/maculopathy to referable diabetic retinopathy/maculopathy (based on the NHS Scotland grading scheme) Number of participants requiring retinal laser therapy for diabetic retinopathy/maculopathy (based on patient report and health records) Number of participants requiring vitrectomy for diabetic retinopathy/maculopathy (based on the NHS patient report and health records) Number of participants requiring intra-vitreal injection for diabetic retinopathy/maculopathy (based on the NHS patient report and health records)
Any progression of diabetic retinopathy/maculopathy
Based on the NHS Scotland grading scheme
Visual acuity
Based on measurement of visual acuity at retinal screening visits
The development of hard exudates or haemorrhages within 1 disc diameter of the macula
Based on the NHS Scotland grading scheme
The development of macular oedema
The accumulation of macular fluid as determined by optical coherence tomography (OCT) imaging or on adverse event report
Visual function (according to the VFQ-25 questionnaire)
According to the VFQ-25 questionnaire
Quality of life (according to the EQ-5D questionnaire)
According to the EQ-5D questionnaire
Total cost to the health service
Health economic analysis
Cost-effectiveness (incremental cost per QALY gained)
Health economic analysis

Full Information

First Posted
February 5, 2018
Last Updated
February 13, 2023
Sponsor
University of Oxford
Collaborators
National Institute for Health Research, United Kingdom, University of Glasgow, University of Aberdeen, University of Dundee, University of Edinburgh, NHS Scotland Diabetic Retinopathy Screening Collaborative
search

1. Study Identification

Unique Protocol Identification Number
NCT03439345
Brief Title
Lowering Events in Non-proliferative Retinopathy in Scotland
Acronym
LENS
Official Title
A Randomised Placebo-controlled Trial of Fenofibrate to Prevent Progression of Non-proliferative Retinopathy in Diabetes
Study Type
Interventional

2. Study Status

Record Verification Date
November 2022
Overall Recruitment Status
Active, not recruiting
Study Start Date
July 23, 2018 (Actual)
Primary Completion Date
March 2024 (Anticipated)
Study Completion Date
May 2024 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
University of Oxford
Collaborators
National Institute for Health Research, United Kingdom, University of Glasgow, University of Aberdeen, University of Dundee, University of Edinburgh, NHS Scotland Diabetic Retinopathy Screening Collaborative

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
LENS is a streamlined multicentre randomized placebo-controlled parallel-group trial investigating the effect of fenofibrate treatment on the progression of diabetic retinopathy/maculopathy
Detailed Description
LENS is a phase 4 randomised placebo-controlled clinical trial of fenofibrate in participants with diabetes and observable retinopathy or maculopathy. The trial aims to recruit approximately 1,060 participants and to treat them for a median duration of at least 4 years. The main aim of LENS is to investigate the effect of fenofibrate therapy on progression to referable diabetic retinopathy/maculopathy. The trial will be conducted using a pragmatic streamlined trial design with the only planned face-to-face visits being an initial screening visit, followed by a randomisation visit eight weeks later. Contact with participants thereafter will be by means of regular telephone or computer questionnaire, and outcome and safety data will also be sought by means of linkage to NHS Scotland registries. Prior to randomization, eligible participants will enter an active run-in phase of 6 to 10 weeks.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Diabetic Retinopathy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
1151 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Fenofibrate 145 mg
Arm Type
Experimental
Arm Description
Name: fenofibrate; Form: tablet; Dosage: 145 mg; Frequency: one tablet daily with normal renal function, one tablet every 2nd day with chronic kidney disease
Arm Title
Placebo Oral Tablet
Arm Type
Placebo Comparator
Arm Description
Name: placebo; Form: tablet; Dosage: not applicable; Frequency: one tablet daily with normal renal function, one tablet every 2nd day with chronic kidney disease
Intervention Type
Drug
Intervention Name(s)
Fenofibrate 145 mg
Intervention Description
One tablet (taken daily with normal renal function, taken every second day with chronic kidney disease)
Intervention Type
Drug
Intervention Name(s)
Placebo Oral Tablet
Intervention Description
One tablet (taken daily with normal renal function, taken every second day with chronic kidney disease)
Primary Outcome Measure Information:
Title
Progression to referable diabetic retinopathy/maculopathy
Description
The composite of progression to referable diabetic retinopathy/maculopathy or any of retinal laser therapy, vitrectomy or intra-vitreal injection of medication for the treatment of diabetic retinopathy/maculopathy Referable diabetic retinopathy is defined according to NHS Scotland's grading criteria.
Time Frame
Approximately 4 years
Secondary Outcome Measure Information:
Title
Components of the primary outcome (progression to referable diabetic retinopathy/maculopathy; retinal laser therapy; vitrectomy; intra-vitreal injection of medication for treatment of diabetic retinopathy/maculopathy) reported separately
Description
Number of participants, respectively, in whom the following outcomes occur, reported separately: Number of participants with progression of diabetic retinopathy/maculopathy to referable diabetic retinopathy/maculopathy (based on the NHS Scotland grading scheme) Number of participants requiring retinal laser therapy for diabetic retinopathy/maculopathy (based on patient report and health records) Number of participants requiring vitrectomy for diabetic retinopathy/maculopathy (based on the NHS patient report and health records) Number of participants requiring intra-vitreal injection for diabetic retinopathy/maculopathy (based on the NHS patient report and health records)
Time Frame
Approximately 4 years
Title
Any progression of diabetic retinopathy/maculopathy
Description
Based on the NHS Scotland grading scheme
Time Frame
Approximately 4 years
Title
Visual acuity
Description
Based on measurement of visual acuity at retinal screening visits
Time Frame
Approximately 4 years
Title
The development of hard exudates or haemorrhages within 1 disc diameter of the macula
Description
Based on the NHS Scotland grading scheme
Time Frame
Approximately 4 years
Title
The development of macular oedema
Description
The accumulation of macular fluid as determined by optical coherence tomography (OCT) imaging or on adverse event report
Time Frame
Approximately 4 years
Title
Visual function (according to the VFQ-25 questionnaire)
Description
According to the VFQ-25 questionnaire
Time Frame
Approximately 4 years
Title
Quality of life (according to the EQ-5D questionnaire)
Description
According to the EQ-5D questionnaire
Time Frame
Approximately 4 years
Title
Total cost to the health service
Description
Health economic analysis
Time Frame
Approximately 4 years
Title
Cost-effectiveness (incremental cost per QALY gained)
Description
Health economic analysis
Time Frame
Approximately 4 years
Other Pre-specified Outcome Measures:
Title
Change in urine albumin:creatinine ratio
Description
Based on collection of biochemical data
Time Frame
Approximately 4 years
Title
The occurrence of major cardiovascular events (myocardial infarction, stroke, coronary and peripheral revascularisation)
Description
Based on patient history and medical records
Time Frame
Approximately 4 years
Title
Minor and major non-traumatic lower limb amputation (minor [defined as distal to the ankle] or major [defined as through or proximal to the ankle])
Description
Based on patient history and medical records
Time Frame
Approximately 4 years

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Capable of giving informed consent Diabetes Mellitus (any type except gestational diabetes) Observable diabetic retinopathy/maculopathy (defined based on NHS Scotland grading criteria as: R1 in both eyes or R2 in one/both eyes at the most recent retinal screening assessment; or M1 in one/both eyes at any retinal screening assessment in the 3 years) Willing to either complete electronic questionnaires or conduct telephone interviews for collection of data once every 6 months Exclusion Criteria: Clinically significant DR (defined as R3 or R4 or M2 in one or both eyes) History of gallbladder disease (cholecystitis, symptomatic gallstones, cholecystectomy) History of acute or chronic pancreatitis Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2X the upper limit of normal (ULN) according to local NHS laboratory reference range at screening visit ALT or AST >2.5X ULN according to local NHS laboratory reference range at randomisation visit Creatine kinase (CK) >3X ULN according to local NHS laboratory reference range at screening visit CK >3X ULN according to local NHS laboratory reference range at randomisation visit Estimated glomerular filtration rate (eGFR) <40mL/min/1.73m2 at screening visit eGFR <30mL/min/1.73m2 at randomisation visit Cirrhosis of any aetiology or any other serious hepatic disease (investigator opinion) Female who is pregnant, breastfeeding, currently trying to become pregnant, or of child-bearing potential and not practising birth control Ongoing vitamin K antagonist (warfarin, phenindione, acenocoumarol), cyclosporine, colchicine, ketoprofen, daptomycin, fibrate therapy, or treatment with rosuvastatin 40mg daily Previous myositis, myopathy or rhabdomyolysis of any cause, or diagnosed hereditary muscle disorder Ongoing renal replacement therapy Any previous organ transplant Previous reported intolerance to any fibrate Medical history that might limit the individual's ability to take trial treatments for the duration of the study (e.g. severe respiratory disease, history of cancer within last 5 years other than non-melanoma skin cancer; or recent history of alcohol or substance misuse) Any other significant disease or disorder which, in the opinion of the Investigator, may either put the participant at risk because of participation in the trial, or may influence the result of the trial, or the participant's ability to participate in the trial LENS participants can participate in other research studies, including clinical trials. The only exclusions related to co-enrolment will be: if any other study or trial excludes co-enrolment or if the intervention being investigated in another trial has the potential to interact with fenofibrate therapy. Not adherent to active run-in treatment
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
David Preiss, PhD FRCPath
Organizational Affiliation
University of Oxford
Official's Role
Principal Investigator
Facility Information:
Facility Name
NHS Grampian
City
Aberdeen
Country
United Kingdom
Facility Name
NHS Lanarkshire
City
Airdrie
Country
United Kingdom
Facility Name
NHS Ayrshire and Arran
City
Ayr
Country
United Kingdom
Facility Name
NHS Dumfries and Galloway
City
Dumfries
Country
United Kingdom
Facility Name
NHS Tayside
City
Dundee
Country
United Kingdom
Facility Name
NHS Fife
City
Dunfermline
Country
United Kingdom
Facility Name
NHS Lanarkshire
City
East Kilbride
Country
United Kingdom
Facility Name
NHS Lothian
City
Edinburgh
Country
United Kingdom
Facility Name
NHS Greater Glasgow and Clyde
City
Glasgow
Country
United Kingdom
Facility Name
NHS Highland
City
Inverness
Country
United Kingdom
Facility Name
NHS Ayrshire and Arran
City
Kilmarnock
Country
United Kingdom
Facility Name
NHS Fife
City
Kirkcaldy
Country
United Kingdom
Facility Name
NHS Forth Valley
City
Larbert
Country
United Kingdom
Facility Name
NHS Borders
City
Melrose
Country
United Kingdom
Facility Name
NHS Tayside
City
Perth
Country
United Kingdom
Facility Name
NHS Lanarkshire
City
Wishaw
Country
United Kingdom

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Data generated by LENS will be available on application to bona fide academic researchers in accordance with the Data Access Policy for the Nuffield Department of Population Health, University of Oxford. Such approvals will also need to be consistent with the informed consent provided by participants. Any sharing of data derived from NHS Scotland data will need to comply with the approvals of the trial.
IPD Sharing Access Criteria
Applications will be considered in accordance with Data Access Policy for the Nuffield Department of Population Health, University of Oxford.
IPD Sharing URL
https://www.ndph.ox.ac.uk/files/about/ndph-data-access-policy-1.pdf
Links:
URL
https://www.ctsu.ox.ac.uk/lens
Description
LENS trial website

Learn more about this trial

Lowering Events in Non-proliferative Retinopathy in Scotland

We'll reach out to this number within 24 hrs