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NCT05405868RecruitingPhase 3

Nicotinamide in Glaucoma (NAMinG): A Randomised, Placebo-controlled, Multi-centre, Phase III Trial

A Phase III, Double-masked, Randomised, Placebo-controlled Trial Investigating the Safety and Efficacy of Nicotinamide (NAM) to Slow Visual Field Loss in Adults With Open-angle Glaucoma

Source: ClinicalTrials.gov · Last updated 9 May 2024 · Not updated for over 12 months - ask the site whether it is still open

Brief summary (registry, in English)

Glaucoma is the leading cause of sight impairment and blindness worldwide. It is a long-term eye disease which can cause permanent loss of sight and sometimes blindness and affects 1 in 50 people over 50 years of age. Open-angle glaucoma (OAG) is the most common type of glaucoma. This tends to develop slowly over many years, caused by the drainage pathway in the eye gradually becoming blocked over time due to a build-up of fluid. This build-up causes pressure in the eye to increase (intra-ocular pressure (IOP)), which then damages the important nerve at the back of the eye called the optic nerve, resulting in vision loss. Current treatments offered for glaucoma (eye drops or laser surgery), aim to lower eye pressure and have shown to slow vision loss, however, visual disability and blindness rates remain unacceptably high and many patients continue to lose vision despite these treatments, suggesting that the optic nerve in some patients is more easily damaged. Recent research has looked at cells called 'mitochondria'. These cells produce most of the energy in the body, and the nerve cells in the eye need a lot of energy to function and survive. Nicotinamide (NAM) is a form of Vitamin B3 and evidence so far has shown that mitochondrial function can be improved with this treatment. The aim of this trial is to find out whether taking oral NAM when used with current standard treatment for lowering pressure in the eye, can reduce the amount of sight loss in recently diagnosed patients with OAG, and evaluate the long-term safety and effectiveness of NAM. The trial will use two groups of people recently diagnosed with glaucoma and who have normal care (drops or laser) to lower eye pressure. Using a method of randomisation (randomly allocated to each group using a computer system), one group will be given NAM and the other group will be given a placebo or 'dummy pill'. This is a double masked trial meaning the participant nor the Investigator will be told which treatment group patients have been allocated to.

Status (registry)
Recruiting
Phase (registry)
Phase 3
Study type
Interventional
Enrollment
496 (estimated)
First submitted
25 Feb 2022
Start date
18 Jan 2024
Primary completion date
30 Apr 2027
Lead sponsor
University College, London
Diseases
Glaucoma
NCT number
NCT05405868

What you commit to

  • Study type: Interventional · Phase 3
  • Planned participants: 496
  • From 18 Jan 2024 to the primary completion date, 30 Apr 2027
  • 10 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Current treatment with either isoniazid, pyrazinamide, carbamazepine, phenobarbital or primidone
  • Concurrently enrolled in any other interventional trial or participation in previous clinical trial of glaucoma.

Other illness

  • Conditions affecting both eyes which may affect the Visual Field test result:
    • Diabetic retinopathy or any other retinal disease causing VF loss
    • Clinically relevant cataract (likely to require cataract surgery within the next 2 years)
    • Dementia or other non-glaucomatous neurological disease causing VF loss
    • Adnexal conditions causing VF loss (including but not limited to blepharochalasis)
  • Diagnosed with cancer in the last 5 years (with exception of non-melanoma skin cancer).
  • Any clinical condition that, in the investigator's opinion would make the participant unsuitable for the trial.

Lab values

  • Current liver disease or laboratory results with elevated levels of liver transaminases (AST or ALT \>3 x ULN) at screening visit.
  • Renal failure (eGFR \<30mL/min/1.73m²) at screening visit.

Other

  • Pigment dispersion glaucoma
  • Pregnancy (or planned pregnancy during the trial) and/or breastfeeding
  • Women of childbearing potential and male participants with a partner of childbearing potential not willing to use highly effective contraception for the duration of the trial treatment and for the time period specified following last trial treatment administration.
  • Current use of, and unwilling to abstain from, over-the-counter additional vitamin B3/NAM oral supplements (including skin preparations such as ointments/emulsions), Ginkgo Biloba and/or Coenzyme Q10 supplements, throughout the duration of their participation in the trial.

Who the study is looking for

  • Patients who have been recently diagnosed (within the last 12 months) with early to moderate open-angle glaucoma (OAG) in at least one eye (including primary OAG, normal tension glaucoma (NTG) and pseudoexfoliation glaucoma)
  • Open angle on gonioscopy
  • Adults aged 18 years or over
  • Snellen visual acuity 6/12 or better in at least one eye meeting the visual field (VF) criteria
  • Visual Field (VF) mean deviation (MD) no worse than -12dB in either eye
  • A negative pregnancy test result at the screening and baseline visit prior to randomisation for women of childbearing potential
  • Ability to provide informed consent to participate
  • Able and willing to attend trial visits and comply with trial procedures for the duration of the trial

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (10)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Belfast City Hospital
Coordinator of this site? Confirm its status
BelfastUnited KingdomNot yet recruiting
Addenbrookes Hospital, Cambridge University Hospitals NHS Foundation Trust
Coordinator of this site? Confirm its status
CambridgeUnited KingdomNot yet recruiting
Queen Victoria Hospital NHS Foundation Trust
Coordinator of this site? Confirm its status
East GrinsteadUnited KingdomRecruiting
Royal Liverpool Hospital
Coordinator of this site? Confirm its status
LiverpoolUnited KingdomNot yet recruiting
King's College Hospital NHS Foundation Trust
Coordinator of this site? Confirm its status
LondonUnited KingdomRecruiting
Barnet Hospital, Royal Free London NHS Foundation Trust
Coordinator of this site? Confirm its status
LondonUnited KingdomNot yet recruiting
Moorfields Eye Hospital NHS Foundation Trust
Coordinator of this site? Confirm its status
LondonUnited KingdomRecruiting
Manchester Royal Eye Hospital
Coordinator of this site? Confirm its status
ManchesterUnited KingdomNot yet recruiting
Nottingham University Hospitals NHS Trust
Coordinator of this site? Confirm its status
NottinghamUnited KingdomNot yet recruiting
Queen Alexandra Hospital
Coordinator of this site? Confirm its status
PortsmouthUnited KingdomRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.