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The relations between location and outcome in stereotactic neurosurgery for drug abuse

A randomised blinded trial of nucleus accumbens ablation to treat opiate dependence in humans: location correlates with outcome

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN33954423
Enrollment
80
Registered
2011-02-17
Start date
2004-01-01
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Functional neurosurgery for drug addiction Surgery Functional neurosurgery

Interventions

1. Radiofrequency ablation of the NAc 2. Different lesioning location and volumn within NAc in four groups 3. Abstinence from opioid use and adverse events related to operation 4. Neuropsychiatric fun

Sponsors

Ministry of Science and Technology (China)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Heroin abuse using 0.3 - 1.0 g daily for at least 3 years by intravenous injection with or without concomitant nasal inhalation 2. Failure of multiple other treatment modalities 3. Ages between 18 and 50 years, either sex 4. Completion of detoxification treatment preoperatively with no somatic symptoms of withdrawal and negative morphine urinalysis and naloxone tests

Exclusion criteria

Exclusion criteria: 1. Inability to give informed consent 2. Human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) virus carrier 3. Developmental delay, cognitive impairment, personality disorders and neuropsychiatric diseases other than addiction

Design outcomes

Primary

MeasureTime frame
Abstinence from opioid use, measured by morphine urinalysis and naloxone testing in the fourth post-operative year

Secondary

MeasureTime frame
1. Complications in stereoctactic surgery (e.g fever, nausea/emesis, seizure, infection, intracranial haemorrhages) 2. Possible neuropsychiatric change related to NAc ablation: memory, motivation, emotion, olfactory sensation After operation, the secondary outcomes were measured at six month intervals and extended for four years.

Countries

China

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026