Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT03666923 · ClinicalTrials.gov registry record · Phase 1

A Study to Evaluate the Safety of THR-687 in Subjects With Diabetic Macular Edema (DME)

A Phase 1 study of Diabetes Mellitus and Diabetic Macular Edema, sponsored by ThromboGenics.

Completed
Registry status
Phase 1
Development phase
12
Enrollment target
7
Study locations

NCT03666923: Completed Phase 1 study of Diabetes Mellitus and Diabetic Macular Edema, sponsored by ThromboGenics.

NCT03666923 is a Phase 1 study of Diabetes Mellitus and Diabetic Macular Edema that has completed, run by ThromboGenics. The registered enrollment target is 12 participants, below the 1,867-participant average among 208 other Diabetes Mellitus trials with a reported enrollment target (99% lower). The trial reports 7 study locations across 6 states. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT03666923, a Phase 1 study of Diabetes Mellitus and Diabetic Macular Edema, has completed, sponsored by ThromboGenics.

COMPLETED
Registry status
Phase 1
Development phase
12 participants
Enrollment target
7
Study locations

Study Summary

This study is conducted to evaluate the safety of a single intravitreal injection of THR-687.

Interventions

  • DRUG THR-687 dose level 1
  • DRUG THR-687 dose level 2
  • DRUG THR-687 dose level 3

Study Locations (7)

Texas

  • Retina Research Institute of Texas - Abilene
  • Valley Retina Institute, PA - McAllen

Arizona

  • Retina Consultants of Arizona - Phoenix

Florida

  • Center for Retina and Macular Disease - Winter Haven

Indiana

  • Midwest Eye Institute - Indianapolis

Nevada

  • Sierra Eye Associates - Reno

South Carolina

  • Palmetto Retinal Center - West Columbia

Trial Details

FieldValue
Enrollment Target 12 participants
Start Date 2018-09-17
Est. Completion 2019-11-20
Phase Phase 1
ThromboGenics

12 total trials

What the finished NCT03666923 record still lists

NCT03666923 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 12 participants, a relatively small participant target, below the 1,867-participant average among 208 other Diabetes Mellitus trials with a reported enrollment target (99% lower).

The record links to 3 conditions, with Diabetes Mellitus appearing as the primary indexed condition, and to 3 interventions - of which THR-687 dose level 1 is the first listed.

NCT03666923 lists 7 locations in 6 states (Texas, Arizona, Florida).

Frequently Asked Questions

What is clinical trial NCT03666923 about?

NCT03666923 is a clinical study titled "A Study to Evaluate the Safety of THR-687 in Subjects With Diabetic Macular Edema (DME)". This study is conducted to evaluate the safety of a single intravitreal injection of THR-687.

What is the current status of trial NCT03666923?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 12 participants. The study started on 2018-09-17. Estimated completion is 2019-11-20.

What conditions does trial NCT03666923 study?

This clinical trial studies the following conditions: Diabetes Mellitus, Diabetic Macular Edema, Diabetic Retinopathy.

What interventions are being tested in trial NCT03666923?

The interventions under investigation include: THR-687 dose level 1 (DRUG), THR-687 dose level 2 (DRUG), THR-687 dose level 3 (DRUG).

Who is sponsoring clinical trial NCT03666923?

This trial is sponsored by ThromboGenics, which has 12 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT03666923 being conducted?

This trial has 7 study locations across Arizona, Florida, Indiana, Nevada, South Carolina. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Diabetes Mellitus

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT03666923's enrollment target sits among peer trials

12 202nd of 208 higher than 5 of 208 other Diabetes Mellitus trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Diabetes Mellitus trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT02602769 · 12 participants

    Whole Transcriptome Profiling and Metabolic Phenotyping in Children With ROHHAD Syndrome

  • NCT02605421 · 12 participants · Phase 2

    Myeloablative Consolidation Therapy and Tandem Autologous Stem Cell Rescue in Patients With High-Risk Neuroblastoma

  • NCT02619448 · 12 participants · Early Phase 1

    Concurrent Chemotherapy Plus HFR Radiation Therapy in Inoperable NSCLC

  • NCT03311503 · 12 participants · Phase 1

    Phase I/II Trial of Lentiviral Gene Transfer for SCID-X1 With Low Dose Targeted Busulfan Conditioning

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT03666923, the US trial registry maintained by the National Library of Medicine. NCT03666923 (small enrollment · multi site footprint · completed) retrieved and formatted by PlainTrial, see methodology.