Metabolism & weight Not a peptide

Tesofensine

Also known as: NS2330

Not FDA-approved

Last verified: October 30, 2026

At a glance

FDA approval Not FDA-approved No record in Drugs@FDA
Randomized controlled trials 11 of 56 publications on PubMed
Registered clinical trials 14 0 active
Adverse event reports 3 2 classified as serious
  • Tesofensine is not an FDA-approved drug: Drugs@FDA has no record of it.
  • PubMed lists 56 publications mentioning it, including 11 randomized controlled trials and 9 animal-only studies.
  • ClinicalTrials.gov lists 14 registered studies testing it (0 active).
  • FDA's adverse event system (FAERS) holds 3 reports mentioning it; 2 classified as serious. Reports do not prove causation.

Research topics

  • Bridged Bicyclo Compounds, Heterocyclic 28
  • Obesity 28
  • Anti-Obesity Agents 21
  • Weight Loss 17
  • Neurotransmitter Uptake Inhibitors 8
  • Appetite Depressants 7
  • Biogenic Monoamines 6
  • Appetite 5
  • Body Weight 5
  • Models, Biological 5

Most frequent MeSH subject headings in the latest PubMed records (English, as indexed).

Regulatory status

Drugs@FDA applications

No application found in Drugs@FDA, FDA's database of approved drugs.

Source: Drugs@FDA (openFDA) · verified October 30, 2026 · API query

FDA compounding safety list

Not on FDA's list of bulk drug substances that may present significant safety risks in compounding.

Source: FDA.gov — Category 2 bulk drug substances · verified October 30, 2026

Removal of a substance from a regulatory list does not mean it has been approved. A "research use only" label does not make a product safe or legal for human use.

Scientific publications

  • All publications 56
  • Human (MeSH) 44
  • Animal only 9
  • Clinical trials 11
  • Randomized controlled trials 11
  • Systematic reviews & meta-analyses 1
  • Case reports 0
  • Retracted 0

Counts are PubMed records that mention the peptide in the title or abstract. Categories overlap, and a mention is not the same as testing the peptide as a treatment. Each number opens the exact PubMed search. Effects seen in laboratory or animal studies may not occur in humans. A registered clinical trial does not show that a substance is effective or safe.

Latest publications

Source: PubMed (NCBI) · verified October 30, 2026

Clinical trials

Registered
14
Active
0
With posted results
5

Conditions studied

  • Obesity 3
  • Parkinson Disease 2
  • Prader-Willi Syndrome 1
  • Hypothalamic Obesity 1
  • Hypothalamic Injury-induced Obesity (HIO) 1
  • Phase 1 1
  • Healthy Male Subjects 1
  • Confirmed Genetic Diagnosis of Prader-Willi Syndrome 1
  • Type 2 Diabetes Mellitus 1
  • Alzheimer Disease 1
  • Parkinson's Disease 1
Study Status Phase Start
Study of Tesomet With Open-label Extension in Subjects With Prader-Willi Syndrome
NCT05198362 Saniona
Withdrawn Phase 2 December 28, 2021
Study of Tesomet With Open-label Extension in Subjects With Hypothalamic Obesity (HO)
NCT05147415 Saniona
Withdrawn Phase 2 November 11, 2021
48 Weeks, Study to Evaluate Overall Safety and Tolerability of Co-administration of Tesofensine and Metoprolol in Subjects With Hypothalamic Injury-induced Obesity (HIO)
NCT03845075 Saniona Results posted
Completed Phase 2 February 25, 2019
A Study to Examine the Effect of Tesofensine and Metoprolol on the 24-hour Mean Heart Rate
NCT03488719 Saniona Results posted
Completed Phase 1 July 11, 2018
Study to Investigate the Pharmacokinetic Profile
NCT03286829 Saniona Results posted
Completed Phase 1 December 18, 2017
Co-administration of Tesofensine/Metoprolol in Subjects With Prader-Willi Syndrome (PWS)
NCT03149445 Saniona Results posted
Completed Phase 2 March 30, 2017
Safety and Efficacy Study of Tesofensine/Metoprolol Treatment in Subjects With Type 2 Diabetes Mellitus
NCT02737891 Saniona Results posted
Completed Phase 2 Apr 2016
Evaluation of Long Term Safety of Tesofensine in Patients With Obesity
NCT00481104 NeuroSearch A/S
Completed Phase 2 May 2007
Effect of Tesofensine on Energy Balance in Humans.
NCT00428415 NeuroSearch A/S
Completed Phase 1, Phase 2 Mar 2007
Effect of Tesofensine on Weight Reduction in Patients With Obesity.
NCT00394667 NeuroSearch A/S
Completed Phase 2 Sep 2006
Show 4 more studies

All 14 studies on ClinicalTrials.gov ↗

Source: ClinicalTrials.gov · verified October 30, 2026

Adverse event reports

Reports
3
Serious
2
With death outcome
0

Most reported reactions

  • Agitation 1
  • Atrial flutter 1
  • Atrial thrombosis 1
  • Cardiac failure congestive 1
  • Drug abuser 1
  • Gastrointestinal disorder 1
  • Product prescribing issue 1
  • Seizure 1
  • Tachycardia 1
  • Therapy cessation 1
  • Tremor 1

Adverse event reports do not prove that the substance caused these effects. Side effects not listed here may still occur. Reaction terms are MedDRA terms as reported to FAERS.

Source: FDA FAERS (FAERS data as of July 30, 2026) · verified October 30, 2026 · API query

Change history

No changes since monitoring began on October 30, 2026.