# REGAIN: RCT of Oxaloacetate for Fatigue in Long COVID

> **NCT05840237** · NA · COMPLETED · sponsor: **Terra Biological LLC** · enrollment: 70 (actual)

## Conditions studied

- Post-COVID-19 Syndrome
- Fatigue Syndrome, Chronic

## Interventions

- **OTHER:** Anhydrous Enol-Oxaloacetate, a "Medical Food"
- **OTHER:** White Rice Flour

## Key facts

- **NCT ID:** NCT05840237
- **Lead sponsor:** Terra Biological LLC
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2023-06-01
- **Primary completion:** 2025-01-30
- **Final completion:** 2025-01-30
- **Target enrollment:** 70 (ACTUAL)
- **Last updated:** 2025-02-04

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05840237

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05840237, "REGAIN: RCT of Oxaloacetate for Fatigue in Long COVID". Retrieved via AI Analytics 2026-06-04 from https://api.ai-analytics.org/clinical/NCT05840237. Licensed CC0.

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