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

NCT04364763 · ClinicalTrials.gov registry record · Phase 2

A Study to Evaluate the Effect of RBT-9 on Progression of COVID-19 in High-Risk Individuals (The PREVENT Study)

A Phase 2 study, sponsored by Renibus Therapeutics.

Terminated
Registry status
Phase 2
Development phase
42
Enrollment target

NCT04364763: Clinical Trial Phase 2 study, sponsored by Renibus Therapeutics.

NCT04364763 is a Phase 2 study that was terminated before completion, run by Renibus Therapeutics. The registered enrollment target is 42 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (68% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT04364763, a Phase 2 study, was terminated before completion, sponsored by Renibus Therapeutics.

TERMINATED
Registry status
Phase 2
Development phase
42 participants
Enrollment target

Study Summary

The overall objective is to evaluate the efficacy, tolerability, and safety of a single dose of RBT-9 versus placebo in coronavirus disease 2019 (COVID-19) infection in non-critically ill adults who are at high risk of progression.

Primary Outcome

Determining severity of COVID-19 in patients measured using the 8-point World Health Organization (WHO) Ordinal Clinical Scale which measures the clinical status of a subject at the first assessment of a given day with category 1, most favorable, and category 8, least favorable (1. Ambulatory, no limitation of activities; 2. Ambulatory, limitation of activities; 3. Hospitalized, no oxygen therapy; 4. Hospitalized, oxygen by mask or nasal prongs; 5. Hospitalized, non-invasive ventilation or high-

Interventions

  • DRUG 0.9% sodium chloride (normal saline)
  • DRUG RBT-9 (90 mg)

Trial Details

FieldValue
Enrollment Target 42 participants
Start Date 2020-08-05
Est. Completion 2021-09-30
Phase Phase 2
Renibus Therapeutics

9 total trials

Why NCT04364763 stopped before completion

NCT04364763 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 42 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (68% lower).

The record links to 0 conditions, and to 2 interventions - of which 0.9% sodium chloride (normal saline) is the first listed.

NCT04364763 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04364763 about?

NCT04364763 is a clinical study titled "A Study to Evaluate the Effect of RBT-9 on Progression of COVID-19 in High-Risk Individuals (The PREVENT Study)". The overall objective is to evaluate the efficacy, tolerability, and safety of a single dose of RBT-9 versus placebo in coronavirus disease 2019 (COVID-19) infection in non-critically ill adults who are at high risk of progression.

What is the current status of trial NCT04364763?

This trial is currently terminated. It is a Phase 2 study. The enrollment target is 42 participants. The study started on 2020-08-05. Estimated completion is 2021-09-30.

What interventions are being tested in trial NCT04364763?

The interventions under investigation include: 0.9% sodium chloride (normal saline) (DRUG), RBT-9 (90 mg) (DRUG).

Who is sponsoring clinical trial NCT04364763?

This trial is sponsored by Renibus Therapeutics, which has 9 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04364763's enrollment target sits among peer trials

42 1339th of 2000 higher than 649 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 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

  • NCT02852213 · 42 participants · Phase 1

    A Single-Stage, Adaptive, Open-label, Dose Escalation Safety and Efficacy Study of AADC Deficiency in Pediatric Patients

  • NCT03136146 · 42 participants · Phase 2

    Combination Chemotherapy in Treating Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia, Lymphoblastic Lymphoma, Burkitt Lymphoma/Leukemia, or Double-Hit Lymphoma/Leukemia

  • NCT03178149 · 42 participants · Phase 1

    A Study of the Safety and Tolerability of ASP7317 in Senior Adults Who Are Losing Their Clear, Sharp Central Vision Due to Geographic Atrophy Secondary to Dry Age-related Macular Degeneration

  • NCT03663530 · 42 participants · NA

    Circadian Misalignment and Energy Balance

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 NCT04364763, the US trial registry maintained by the National Library of Medicine. NCT04364763 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.