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

NCT04504175 · ClinicalTrials.gov registry record · Phase 4

Ketamine for Older Adults Pilot

A Phase 4 study, sponsored by Washington University School of Medicine.

Completed
Registry status
Phase 4
Development phase
25
Enrollment target

NCT04504175: Completed Phase 4 study, sponsored by Washington University School of Medicine.

NCT04504175 is a Phase 4 study that has completed, run by Washington University School of Medicine. The registered enrollment target is 25 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (95% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT04504175, a Phase 4 study, has completed, sponsored by Washington University School of Medicine.

COMPLETED
Registry status
Phase 4
Development phase
25 participants
Enrollment target

Study Summary

This pilot study will assess the safety and feasibility of intravenous (IV) ketamine in older adults with Treatment-Resistant Depression (TRD). In addition, this study will develop and utilize innovative methodological approaches to demonstrate the feasibility of precision medicine and mobile health approaches in depression treatment.

Primary Outcome

Remission defined as Montgomery Asberg Depression Rating Scale score ≤10. Scale ranges from 0-60 with higher scores indicating higher depression severity.

Interventions

  • DRUG Ketamine

Trial Details

FieldValue
Enrollment Target 25 participants
Start Date 2020-10-22
Est. Completion 2022-03-15
Phase Phase 4

What the finished NCT04504175 record still lists

NCT04504175 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 25 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (95% lower).

The record links to 0 conditions, and to 1 intervention - of which Ketamine is the first listed.

NCT04504175 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04504175 about?

NCT04504175 is a clinical study titled "Ketamine for Older Adults Pilot". This pilot study will assess the safety and feasibility of intravenous (IV) ketamine in older adults with Treatment-Resistant Depression (TRD). In addition, this study will develop and utilize innovative methodological approaches to demonstrate the feasibility of precision medicine and mobile health...

What is the current status of trial NCT04504175?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 25 participants. The study started on 2020-10-22. Estimated completion is 2022-03-15.

What interventions are being tested in trial NCT04504175?

The interventions under investigation include: Ketamine (DRUG).

Who is sponsoring clinical trial NCT04504175?

This trial is sponsored by Washington University School of Medicine, which has 1,502 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04504175's enrollment target sits among peer trials

25 1669th of 2000 higher than 302 of 2,000 other Phase 4 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 4 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

  • NCT01166854 · 25 participants

    Characterization of Familial Myopathy and Paget Disease of Bone

  • NCT01913106 · 25 participants · Phase 1

    HSV-tk + Valacyclovir Therapy in Combination With Brachytherapy for Recurrent Prostate Cancer

  • NCT02138669 · 25 participants · NA

    Intacs Prescription Inserts for Keratoconus Patients

  • NCT02174549 · 25 participants · Phase 1

    Dose-defining Study of Tirapazamine Combined With Embolization in Liver Cancer

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 NCT04504175, the US trial registry maintained by the National Library of Medicine. NCT04504175 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.