Genetic vulnerability and isotretinoin-induced psychiatric adverse events

Isotretinoin and neuropsychiatric side effects: Continued vigilance is needed

Background

Isotretinoin (13-cis-retinoic acid, marketed under the names Accutane, Roaccutane, and others) is an effective treatment for acne that has been on the market for over 30 years, although reports of neuropsychiatric side effects continue to be reported. Isotretinoin is an isomer of the active form of Vitamin A, 13-trans-retinoic acid, which has known psychiatric side effects when given in excessive doses, and is part of the family of compounds called retinoids, which have multiple functions in the central nervous system.

Methods

The literature was reviewed in pubmed and psychinfo for research related to isotretinoin and neuropsychiatric side effects including depression, suicidal thoughts, suicide, mania, anxiety, impulsivity, emotional lability, violence, aggression, and psychosis.

Results

Multiple case series have shown that successful treatment of acne with isotretinoin results in improvements in measures of quality of life and self esteem However, studies show individual cases of clinically significant depression and other neuropsychiatric events that, although not common, are persistent in the literature. Since the original cases of depression were reported to the United States Food and Drug Administration, numerous cases have been reported to regulatory agencies in the United Kingdom, France, Ireland, Denmark, Australia, Canada, and other countries, making isotretinoin one of the top five medications in the world associated with depression and other neuropsychiatric side effects. Clinicians are advised to warn patients of the risks of neuropsychiatric side effects with isotretinoin which may arise from the medication itself, and not just as a side effect of acne or youth.

Is there an association between isotretinoin therapy and adverse mood changes? A prospective study in a cohort of acne patients

Background: Treatment with isotretinoin has been associated with adverse mood changes. However, even though a number of studies support this association, others refute it, and a concrete causal link has yet to be proven. Acne itself is associated with depressive symptoms, thus making studies on the topic difficult to design and interpret. Objectives and methods: Using validated tools, we performed a prospective study in order to assess the effects of treatment with isotretinoin on the mood of patients with acne vulgaris. Results: Fifty-six patients were included with a mean age of 21 years. At baseline, questionnaire scores for all measured parameters were indicative of lower mood than published norms. During and after treatment, values of either stable or improving mood were displayed across all questionnaires. Three patients developed significantly deteriorating moods, two of whom also experienced severe physical adverse effects. Conclusion: The relationship between isotretinoin and depression is the most debated aspect of isotretinoin therapy. Our results link isotretinoin to an overall improvement in psychological wellbeing, even in patients suffering with stable mental illness. However, we also found that a small minority of patients are susceptible to severe mood deterioration, particularly in conjunction with severe physical side effects.

Psychiatric and Developmental Effects of Isotretinoin (Retinoid) Treatment for Acne Vulgaris

BACKGROUND

An association between isotretinoin (13-cis-retinoic acid, sold under trade names including Accutane [Hoffmann-La Roche Inc, Basel, Switzerland]) and birth defects, depression, and suicide is well documented but controversial. A link to psychosis and exacerbation of bipolar symptoms is less extensively addressed in the literature.

OBJECTIVE

Given recent conceptualization of psychotic disorders as neurodevelopmental, and current interest in possible shared etiology of different neurodevelopmental disorders such as psychosis, autism, and intellectual disability, this review concurrently examines the literature on developmental (primarily teratogenic) and psychiatric side effects of isotretinoin exposure. The goal of concurrent review is to identify shared mechanisms in the literature that may inform future efforts to clarify the neurocognitive and psychiatric effects of isotretinoin exposure at different developmental stages or given different genetic backgrounds.

METHODS

Literature was obtained by PubMed search for the term isotretinoin in combination with each of the terms psychosis, psychiatric, and teratogenic. Resulting articles met inclusion criteria for review if they addressed psychiatric side effects of isotretinoin treatment or the neurobehavioral teratology of isotretinoin.

RESULTS

The association of isotretinoin exposure with prenatal developmental toxicity is well established. Although numerous reports also link isotretinoin treatment with psychiatric side effects, this association remains controversial.

CONCLUSIONS

The extent to which isotretinoin influences pediatric and adult development and cognition, and whether and why certain individuals may be susceptible to psychiatric side effects, remains to be clarified. Curr Ther Res Clin Exp. 2019; 80:XXX-XXX).

Association of Isotretinoin With Depression and Suicide: A Review of Current Literature

Acne vulgaris, a condition that can affect people at any age, is the most common cause of referral to a dermatologist. Isotretinoin (ITT) is the most effective treatment available, but serious adverse effects, including a possible association with depression and suicide, limit its use. We review the current literature regarding the association of ITT with depression and suicide. Case reports and database studies show a clear association, and this association is biologically plausible. Although prospective studies have opposite results, limitations make them unsuitable to identify a subgroup of patients who may be at risk of developing depression or suicidal ideation with ITT. Overall, it seems some people might be at risk, particularly those with a personal or family history of mental disorder, but further studies are needed to identify those patients who would benefit from an early referral to a mental health professional when ITT is initiated. Currently, no conclusions can be drawn, and it seems appropriate to regularly screen all patients on ITT for depressive symptoms and suicidal ideation and promptly refer them to a mental health professional if any are found.

Psychiatric disorders, acne and systemic retinoids: comparison of risks

BACKGROUND

The link between isotretinoin, treatment of a severe form of acne, and psychiatric disorders remains controversial, as acne itself could explain the occurrence of psychiatric disorders. This study aims at assessing the disproportionality of psychiatric adverse events reported with isotretinoin in the French National PharmacoVigilance Database, compared with other systemic acne treatments and systemic retinoids.

MATERIALS AND METHODS

Data were extracted from the French National PharmacoVigilance Database for systemic acne treatments, systemic retinoids and drugs used as comparators. Each report was subjected to double-blind analysis by two psychiatric experts. A disproportionality analysis was performed, calculating the number of psychiatric ADRs divided by the total number of notifications for each drug of interest.

RESULTS

Concerning acne systemic treatments: all 71 reports of severe psychiatric disorders involved isotretinoin, the highest proportion of mild/moderate psychiatric adverse events was reported with isotretinoin (14.1%). Among systemic retinoids, the highest proportion of severe and mild/moderate psychiatric events occurred with isotretinoin and alitretinoin.

CONCLUSION

Our study raises the hypothesis that psychiatric disorders associated with isotretinoin are related to a class effect of retinoids, as a signal emerges for alitretinoin. Complementary studies are necessary to estimate the risk and further determine at-risk populations.