Evidence map›Paper›PMID 23184281›Full record

ArticlePsychopharmacology2013

Evaluation of chemically diverse 5-HT₂c receptor agonists on behaviours motivated by food and nicotine and on side effect profiles.

G A Higgins, L B Silenieks, W Lau, I A M de Lannoy, D K H Lee, J Izhakova, K Coen, A D Le, P J Fletcher

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.9field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 56 citations in OpenAlex.

  1. The 5-HTPsychopharmacology · 2018
    Trial
  2. The Effect of Serotonin 5-HTAddiction biology · 2025
    Article
  3. Serotonin 5-HTACS chemical neuroscience · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. The serotonergic system dysfunction in diabetes mellitus.Frontiers in cellular neuroscience · 2022
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Oral ionic liquid for the treatment of diet-induced obesity.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  13. Article
  14. Article
  15. Review
  16. Serotonin 5-HTFrontiers in pharmacology · 2018
    Article
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

G A HigginsInterVivo Solutions Inc, 120 Carlton St., Toronto, ON M5A 4K2, Canada. guyh@intervivo.com
L B Silenieks
W Lau
I A M de Lannoy
D K H Lee
J Izhakova
K Coen
A D Le
P J Fletcher
Centre for Addiction and Mental Health · CAUniversity of Toronto · CAViavi Solutions (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleSelective 5-HT2C receptor agonists, such as lorcaserin, are being developed for the treatment of obesity. Studies suggest that they may also have therapeutic potential for addictive behaviours including nicotine dependence, although few drugs of this class have been evaluated.

objectivesThe primary aim was to evaluate the highly selective 5-HT2C agonist, CP-809101, against food-motivated (operant FR5 and progressive ratio schedules, palatability-induced feeding) and nicotine-motivated (intravenous self-administration, drug discrimination) behaviours in rats and to compare with equivalent findings for the structurally distinct 5-HT2C receptor agonists lorcaserin and Ro 60-0175. The secondary aims were to evaluate the side effect profiles of lorcaserin and CP-809101 and to determine the plasma levels of lorcaserin at a dose (1 mg/kg) that reduces both food and nicotine reinforcement for comparison to plasma concentrations reported in human trials.

resultsCP-809101 (0.3-3 mg/kg SC) reduced responding for both nicotine and food and blocked the discriminative stimulus properties of nicotine in a similar manner to lorcaserin and Ro 60-0175. Behaviours such as hypolocomotion, chewing and ptosis became evident following both CP-809101 and lorcaserin administration at higher doses. Plasma levels of lorcaserin were of similar range to those reported in obesity trials.

conclusionsThese studies support the utility of 5-HT2C agonists as a therapeutic approach to treat nicotine dependence. Plasma exposure levels after acute lorcaserin treatment suggest that equivalent dosages could be used to evaluate these drugs in obesity and smoking cessation trials. Finally, there may be differences in the side effect profiles between lorcaserin and CP-809101, raising the possibility for tolerability differences amongst 5-HT2C agonists.

Indexed as

AnimalsBehavior, AnimalBenzazepinesDose-Response Relationship, DrugEthylaminesFeeding BehaviorIndolesMaleMotivationNicotinePiperazinesPyrazinesRatsRats, Sprague-DawleyReceptor, Serotonin, 5-HT2CReinforcement ScheduleBenzazepinesCP-809,101EthylaminesIndoleslorcaserinNicotinePiperazinesPyrazinesReceptor, Serotonin, 5-HT2CRo 60-0175Serotonin 5-HT2 Receptor Agonists

Identifiers

PMID23184281
OpenAlexW1985441661

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.