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Lumateperone adjunct therapy improves sexual functioning in patients with major depressive disorderNew medication helps sexual function in patients with depression

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Key Takeaway
Consider lumateperone as an adjunctive therapy to improve sexual functioning in patients with major depressive disorder.

The study investigated the efficacy of adding lumateperone to existing antidepressant therapy for adults diagnosed with major depressive disorder who had not responded sufficiently to one or two prior antidepressant treatments. The primary focus was on changes in sexual functioning scores over a multi-week period.

Results indicated that the addition of lumateperone led to significant improvements in total sexual functioning scores compared to the placebo group. These improvements were observed across various domains, including pleasure and arousal, and were noted in both men and women. Patients who presented with baseline sexual dysfunction showed notable improvements when lumateperone was added to their regimen.

While the study suggests a positive impact on sexual health, the authors note that improvements in depressive symptoms might be linked to the improvements in sexual function, though a definitive mechanism is not established. The trial suggests that lumateperone did not worsen sexual functioning or cause treatment-related sexual dysfunction. Clinicians may consider lumateperone as an adjunctive therapy for patients experiencing sexual dysfunction as a side effect of antidepressant treatment or as a component of their depressive disorder.

Living with depression can be hard enough without the added burden of sexual dysfunction. Many people who do not respond well to standard antidepressants find that their sex lives suffer as a side effect of their medication. This creates a difficult choice between managing mood and maintaining intimacy.

A Phase 3 clinical trial looked at 480 adults with Major Depressive Disorder who had not seen enough improvement from one or two previous antidepressant treatments. Researchers added lumateperone, a medication taken at 42 mg daily, to their existing treatment plans. They compared this to a placebo added to the same antidepressant therapy.

The results showed that patients taking lumateperone saw significant improvements in their sexual functioning scores after six weeks. These improvements were especially notable in women and in patients who started the study with existing sexual dysfunction. While the study is still early in its data reporting, the results suggest lumateperone could be a helpful addition for those struggling with these specific side effects.

What this means for you:
Adding lumateperone to antidepressant therapy can improve sexual function for people with treatment-resistant depression.

Common questions

Who is this treatment for?

This treatment is for adults with Major Depressive Disorder who have not had a good enough response to one or two different antidepressant therapies. The study specifically looked at people who were already struggling to manage their symptoms with standard medications.

How does it affect sexual function?

Patients taking 42 mg of lumateperone daily showed significant improvements in sexual functioning scores after six weeks. These improvements were seen in both men and women, and were particularly notable in women and those who started with sexual dysfunction.

Is it safe to use with other antidepressants?

In this study, lumateperone at 42 mg did not worsen sexual functioning and was not associated with treatment-related sexual dysfunction. You should talk to your doctor to see if this combination is right for your specific health needs.

Study Details

Study typeRct
Sample sizen = 480
EvidenceLevel 2
Follow-up1.4 mo
PublishedSep 2026
View Original Abstract ↓
Lumateperone is an atypical antipsychotic to treat schizophrenia, bipolar I or II depression, and major depressive disorder (MDD). Randomized phase 3 Study 502 (NCT05061706) investigated the impact of adjunctive lumateperone 42 mg/day on sexual functioning, per Changes in Sexual Functioning Questionnaire 14-item version (CSFQ-14). Adults meeting criteria for MDD with inadequate response to 1-2 antidepressant therapies (ADTs) in the current depressive episode, Montgomery-Åsberg Depression Rating Scale Total score ≥24, Clinical Global Impression Scale-Severity score ≥4, and Quick Inventory of Depressive Symptomatology-Self Report-16-item score ≥14 were randomized to 6-week lumateperone 42 mg+ADT or placebo+ADT. Sexual function was assessed by CSFQ-14 Total and domain scores in the intent-to-treat (ITT) population and subgroups. Of 480 patients in the ITT population, 82.5% had sexual dysfunction at baseline (women=284; men=112). Lumateperone+ADT significantly improved CSFQ-14 Total score at Day 43 vs placebo+ADT (least squares mean difference [LSMD]=2.7; effect size [ES]=0.38; <.0001). Significantly greater improvements were observed in patients with baseline sexual dysfunction (LSMD=3.1; ES=0.42; <.0001), with no change in those without. Improvements were observed in women (LSMD=3.5; ES=0.47; <.0001) and in men (LSMD=1.9; ES=0.33; =.08). Significant improvements in CSFQ-14 Total score at Day 43 were observed across age groups and CSFQ domain scores, with both sexes having significant improvements in pleasure and arousal/ excitement. Improvements in depressive symptoms may be linked to improvement in sexual functioning. Adjunctive lumateperone 42 mg did not worsen sexual functioning and was not associated with treatment-related sexual dysfunction in patients with MDD with inadequate response to ADT. ClinicalTrials.gov identifier: NCT05061706.
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