# Opioids and Social Support Enhanced Extinction Effects

> **NCT04166071** · EARLY_PHASE1 · ENROLLING_BY_INVITATION · sponsor: **University of California, Los Angeles** · enrollment: 60 (estimated)

## Conditions studied

- Fear

## Interventions

- **DRUG:** Naltrexone
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT04166071
- **Lead sponsor:** University of California, Los Angeles
- **Sponsor class:** OTHER
- **Phase:** EARLY_PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** ENROLLING_BY_INVITATION
- **Start date:** 2021-12-13
- **Primary completion:** 2026-09
- **Final completion:** 2026-09
- **Target enrollment:** 60 (ESTIMATED)
- **Last updated:** 2025-10-20

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04166071

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04166071, "Opioids and Social Support Enhanced Extinction Effects". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT04166071. Licensed CC0.

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