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MERCURY study

A 24-month, phase IV, open-label, single arm, multicenter, prospective, observational study assessing the efficacy and safety of subsequent treatment after initiation of intravitreal injection of ranibizumab 0.5 mg in diabetic macular edema patients with impaired visual acuity through individualized treatment in routine clinical practice in Japan

Status
Active, not recruiting
Phases
Phase 4
Study type
Observational
Source
JPRN
Registry ID
JPRN-jRCT1080223554
Enrollment
200
Registered
2017-06-07
Start date
2017-07-14
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Diabetic Macular Edema (DME)

Interventions

investigational material(s) Generic name etc : Lucentis INN of investigational material : Ranibizumab Therapeutic category code : 131 Agents for ophthalmic use Dosage and Administration for Investigat

Sponsors

Novartis Pharma K.K.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: * DME patients with impaired VA aged 20 years or older. * Patients to whom ranibizumab treatment is considered as suitable and who are initiating treatment with ranibizumab for the first time. * Patients not previously treated with any anti-VEGF agents including ranibizumab. * Patient who is expected to follow visit schedule for at least one year. * Willing and able to provide written informed consent personally or by a legally acceptable representative(s).

Exclusion criteria

Exclusion criteria: * Simultaneous participation in a study that includes administration of any investigational drug or procedure. * Planned to be treated with systemic anti-VEGF agents within at least one year from baseline. * Patients contraindicated for ranibizumab treatment as per the Japan package insert: * Patients with a history of hypersensitivity to the ingredients in ranibizumab formulation. * Patients with infection or patients with suspected infection in and/or around the eye. * Patients with inflammation in and/or around the eye.

Design outcomes

Primary

MeasureTime frame
efficacy Mean change in BCVA from baseline to 12 months The primary effectiveness variable is the change in BCVA in logMAR from Baseline to 12 months.

Secondary

MeasureTime frame
efficacy The time course of BCVA change from Baseline in logMAR for 24 months. efficacy Center subfield thickness (CSFT) other Number of treatment (anti-VEGF agents, combination therapy) other Hospital Anxiety and Depression Scale (HADS) safety Safety(type, frequency, and severity)

Countries

Japan

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026