THE COMPARISON

A Vitiligo in a young Hispanic female, which spared the area under a ring. The patient has spotty return of pigment on the hand after narrowband UVB treatment.

B Vitiligo on the hand in a young Hispanic male.

Photographs courtesy of Richard P. Usatine, MD.

Vitiligo is a chronic autoimmune disorder characterized by areas of depigmented white patches on the skin due to the loss of melanocytes in the epidermis. Various theories on the pathogenesis of vitiligo exist; however, autoimmune destruction of melanocytes remains the leading hypothesis, followed by intrinsic defects in melanocytes.¹ Vitiligo is associated with various autoimmune diseases but is most frequently reported in conjunction with thyroid disorders.²

Epidemiology

Vitiligo affects approximately 1% of the US population and up to 8% worldwide.² There is no difference in prevalence between races or genders. Females typically acquire the disease earlier than males. Onset may occur at any age, although about half of patients will have vitiligo by 20 years of age.¹

Key clinical features in people with darker skin tones

Bright white patches are characteristic of vitiligo. The patches typically are asymptomatic and often affect the hands (Figures A and B), perioral skin, feet, and scalp, as well as areas more vulnerable to friction and trauma, such as the elbows and knees.² Trichrome lesions—consisting of varying zones of white (depigmented), lighter brown (hypopigmented), and normal skin—are most commonly seen in individuals with darker skin. Trichrome vitiligo is considered an actively progressing variant of vitiligo.²

An important distinction when diagnosing vitiligo is evaluating for segmental vs nonsegmental vitiligo. Although nonsegmental vitiligo—the more common subtype—is characterized by symmetric distribution and a less predictable course, segmental vitiligo manifests in a localized and unilateral distribution, often avoiding extension past the midline. Segmental vitiligo typically manifests at a younger age and follows a more rapidly stabilizing course.³

Worth noting

Given that stark contrasts between pigmented and depigmented lesions are more prominent in darker skin tones, vitiligo can be more socially stigmatizing and psychologically devastating in these patients.^4,5

Treatment of vitiligo includes narrowband UVB (NB-UVB) light phototherapy, excimer laser, topical corticosteroids, topical calcineurin inhibitors such as tacrolimus and pimecrolimus, and surgical melanocyte transplantation.¹ In July 2022, ruxolitinib cream 1.5% was approved by the US Food and Drug Administration (FDA) for nonsegmental vitiligo in patients 12 years and older.^6,7 It is the only FDA-approved therapy for vitiligo. It is thought to work by inhibiting the Janus kinase– signal transducers and activators of the transcription pathway.⁶ However, topical ruxolitinib is expensive, costing more than $2000 for 60 g.⁸

Health disparity highlight

A 2021 study reviewing the coverage policies of 15 commercial health care insurance companies, 50 BlueCross BlueShield plans, Medicaid, Medicare, and Veterans Affairs plans found inequities in the insurance coverage patterns for therapies used to treat vitiligo. There were 2 commonly cited reasons for denying coverage for therapies: vitiligo was considered cosmetic and therapies were not FDA approved.⁷ In comparison, NB-UVB light phototherapy for psoriasis is not considered cosmetic and has a much higher insurance coverage rate.^9,10 The out-of-pocket cost for a patient to purchase their own NB-UVB light phototherapy is more than $5000.11 Not all patients of color are economically disadvantaged, but in the United States, Black and Hispanic populations experience disproportionately higher rates of poverty (19% and 17%, respectively) compared to their White counterparts (8%).¹²

Final thoughts

US Food and Drug Administration approval of new drugs or new treatment indications comes after years of research discovery and large-scale trials. This pursuit of new discovery, however, is uneven. Vitiligo has historically been understudied and underfunded for research; this is common among several conditions adversely affecting people of color in the United States.¹³

THE COMPARISON

A Vitiligo in a young Hispanic female, which spared the area under a ring. The patient has spotty return of pigment on the hand after narrowband UVB treatment.

B Vitiligo on the hand in a young Hispanic male.

Photographs courtesy of Richard P. Usatine, MD.

Vitiligo is a chronic autoimmune disorder characterized by areas of depigmented white patches on the skin due to the loss of melanocytes in the epidermis. Various theories on the pathogenesis of vitiligo exist; however, autoimmune destruction of melanocytes remains the leading hypothesis, followed by intrinsic defects in melanocytes.¹ Vitiligo is associated with various autoimmune diseases but is most frequently reported in conjunction with thyroid disorders.²

Epidemiology

Vitiligo affects approximately 1% of the US population and up to 8% worldwide.² There is no difference in prevalence between races or genders. Females typically acquire the disease earlier than males. Onset may occur at any age, although about half of patients will have vitiligo by 20 years of age.¹

Key clinical features in people with darker skin tones

Bright white patches are characteristic of vitiligo. The patches typically are asymptomatic and often affect the hands (Figures A and B), perioral skin, feet, and scalp, as well as areas more vulnerable to friction and trauma, such as the elbows and knees.² Trichrome lesions—consisting of varying zones of white (depigmented), lighter brown (hypopigmented), and normal skin—are most commonly seen in individuals with darker skin. Trichrome vitiligo is considered an actively progressing variant of vitiligo.²

An important distinction when diagnosing vitiligo is evaluating for segmental vs nonsegmental vitiligo. Although nonsegmental vitiligo—the more common subtype—is characterized by symmetric distribution and a less predictable course, segmental vitiligo manifests in a localized and unilateral distribution, often avoiding extension past the midline. Segmental vitiligo typically manifests at a younger age and follows a more rapidly stabilizing course.³

Worth noting

Given that stark contrasts between pigmented and depigmented lesions are more prominent in darker skin tones, vitiligo can be more socially stigmatizing and psychologically devastating in these patients.^4,5

Treatment of vitiligo includes narrowband UVB (NB-UVB) light phototherapy, excimer laser, topical corticosteroids, topical calcineurin inhibitors such as tacrolimus and pimecrolimus, and surgical melanocyte transplantation.¹ In July 2022, ruxolitinib cream 1.5% was approved by the US Food and Drug Administration (FDA) for nonsegmental vitiligo in patients 12 years and older.^6,7 It is the only FDA-approved therapy for vitiligo. It is thought to work by inhibiting the Janus kinase– signal transducers and activators of the transcription pathway.⁶ However, topical ruxolitinib is expensive, costing more than $2000 for 60 g.⁸

Health disparity highlight

A 2021 study reviewing the coverage policies of 15 commercial health care insurance companies, 50 BlueCross BlueShield plans, Medicaid, Medicare, and Veterans Affairs plans found inequities in the insurance coverage patterns for therapies used to treat vitiligo. There were 2 commonly cited reasons for denying coverage for therapies: vitiligo was considered cosmetic and therapies were not FDA approved.⁷ In comparison, NB-UVB light phototherapy for psoriasis is not considered cosmetic and has a much higher insurance coverage rate.^9,10 The out-of-pocket cost for a patient to purchase their own NB-UVB light phototherapy is more than $5000.11 Not all patients of color are economically disadvantaged, but in the United States, Black and Hispanic populations experience disproportionately higher rates of poverty (19% and 17%, respectively) compared to their White counterparts (8%).¹²

Final thoughts

US Food and Drug Administration approval of new drugs or new treatment indications comes after years of research discovery and large-scale trials. This pursuit of new discovery, however, is uneven. Vitiligo has historically been understudied and underfunded for research; this is common among several conditions adversely affecting people of color in the United States.¹³

THE COMPARISON

A Vitiligo in a young Hispanic female, which spared the area under a ring. The patient has spotty return of pigment on the hand after narrowband UVB treatment.

B Vitiligo on the hand in a young Hispanic male.

Photographs courtesy of Richard P. Usatine, MD.

Vitiligo is a chronic autoimmune disorder characterized by areas of depigmented white patches on the skin due to the loss of melanocytes in the epidermis. Various theories on the pathogenesis of vitiligo exist; however, autoimmune destruction of melanocytes remains the leading hypothesis, followed by intrinsic defects in melanocytes.¹ Vitiligo is associated with various autoimmune diseases but is most frequently reported in conjunction with thyroid disorders.²

Epidemiology

Vitiligo affects approximately 1% of the US population and up to 8% worldwide.² There is no difference in prevalence between races or genders. Females typically acquire the disease earlier than males. Onset may occur at any age, although about half of patients will have vitiligo by 20 years of age.¹

Key clinical features in people with darker skin tones

Bright white patches are characteristic of vitiligo. The patches typically are asymptomatic and often affect the hands (Figures A and B), perioral skin, feet, and scalp, as well as areas more vulnerable to friction and trauma, such as the elbows and knees.² Trichrome lesions—consisting of varying zones of white (depigmented), lighter brown (hypopigmented), and normal skin—are most commonly seen in individuals with darker skin. Trichrome vitiligo is considered an actively progressing variant of vitiligo.²

An important distinction when diagnosing vitiligo is evaluating for segmental vs nonsegmental vitiligo. Although nonsegmental vitiligo—the more common subtype—is characterized by symmetric distribution and a less predictable course, segmental vitiligo manifests in a localized and unilateral distribution, often avoiding extension past the midline. Segmental vitiligo typically manifests at a younger age and follows a more rapidly stabilizing course.³

Worth noting

Given that stark contrasts between pigmented and depigmented lesions are more prominent in darker skin tones, vitiligo can be more socially stigmatizing and psychologically devastating in these patients.^4,5

Treatment of vitiligo includes narrowband UVB (NB-UVB) light phototherapy, excimer laser, topical corticosteroids, topical calcineurin inhibitors such as tacrolimus and pimecrolimus, and surgical melanocyte transplantation.¹ In July 2022, ruxolitinib cream 1.5% was approved by the US Food and Drug Administration (FDA) for nonsegmental vitiligo in patients 12 years and older.^6,7 It is the only FDA-approved therapy for vitiligo. It is thought to work by inhibiting the Janus kinase– signal transducers and activators of the transcription pathway.⁶ However, topical ruxolitinib is expensive, costing more than $2000 for 60 g.⁸

Health disparity highlight

A 2021 study reviewing the coverage policies of 15 commercial health care insurance companies, 50 BlueCross BlueShield plans, Medicaid, Medicare, and Veterans Affairs plans found inequities in the insurance coverage patterns for therapies used to treat vitiligo. There were 2 commonly cited reasons for denying coverage for therapies: vitiligo was considered cosmetic and therapies were not FDA approved.⁷ In comparison, NB-UVB light phototherapy for psoriasis is not considered cosmetic and has a much higher insurance coverage rate.^9,10 The out-of-pocket cost for a patient to purchase their own NB-UVB light phototherapy is more than $5000.11 Not all patients of color are economically disadvantaged, but in the United States, Black and Hispanic populations experience disproportionately higher rates of poverty (19% and 17%, respectively) compared to their White counterparts (8%).¹²

Final thoughts

US Food and Drug Administration approval of new drugs or new treatment indications comes after years of research discovery and large-scale trials. This pursuit of new discovery, however, is uneven. Vitiligo has historically been understudied and underfunded for research; this is common among several conditions adversely affecting people of color in the United States.¹³

Psychiatric electroceutical interventions (PEIs) – including Food and Drug Administration–approved therapies like electroconvulsive therapy (ECT) and repetitive transcranial magnetic stimulation (rTMS), as well as experimental interventions such as deep brain stimulation (DBS) and adaptive brain implants (ABI) – offer therapeutic promise for patients suffering with major depressive disorder (MDD). Yet there remain many open questions regarding their use, even in cases where their safety and effectiveness is well established.

Our research aims to better understand how different stakeholder groups view these interventions. We conducted a series of interviews with psychiatrists, patients with MDD, and members of the public to more fully comprehend these groups’ perceptions of barriers to using these therapies.¹ They raised concerns about limitations to access posed by the limited geographic availability of these treatments, their cost, and lack of insurance coverage. In addition, each stakeholder group cited lack of knowledge about PEIs as a perceived barrier to their wider implementation in depression care.

Michigan State University

Our participants recognized there are significant geographic limitations to accessing PEIs, as many of these treatments are available only in large, well-resourced cities. This is especially true for DBS and ABIs as they remain investigational, require neurosurgery, and currently are offered only during clinical research trials. However, even for established therapies like ECT and rTMS, access often remains limited to larger treatment centers. Further, training on the proper implementation and use of these modalities is limited in the United States. Current requirements from the Accreditation Council for Graduate Medical Education state only that psychiatry residents demonstrate knowledge of these therapies and their indications, falling short of requiring first-hand experience in referring or administering them.²

Michigan State University

Our participants also perceived the cost of these therapies as a significant barrier affecting a large proportion of patients who could potentially benefit from them. Another frequently mentioned barrier is the lack of insurance coverage for existing PEIs, particularly rTMS. Even when insurance covers treatment with an approved PEI (for example, ECT, rTMS), there may be a requirement to have tried and failed multiple antidepressant medications first. These insurance requirements may contribute to a lack of general clarity about when these treatments should be used. The psychiatrists we interviewed, for example, were almost evenly split between believing that ECT and/or rTMS should be offered earlier in the course of therapy and believing that they should be reserved only for patients with treatment-resistant depression.

Michigan State University

Further, some psychiatrists we interviewed stated that they wanted more information about the appropriate use of these treatments. This is unsurprising, as the available guidelines for the approved electroceutical treatments are outdated. Although the American Psychiatric Association Task Force is due to publish updated guidelines for ECT, it has been more than 20 years since the current guidelines were published.³ More recent guidelines, such as those issued in 2016 by the Canadian Network for Mood and Anxiety Treatments cite studies that were even then several years old.⁴ For rTMS, newer guidelines are available, but they have not yet been revised to include recent developments such as the SAINT protocol.^5,6

While useful, clinical guidelines do not provide all of the information psychiatrists require for clinical decision-making. They are only as good as the evidence available and to the extent that they include all of the considerations important to psychiatrists and the specific patients they are treating.^7,8 We asked the psychiatrists in our interviews what practical information they would like to see included in treatment guidelines. They offered a range of suggestions: better guidance about which patients would be most likely to benefit, when to offer the treatments, and how to combine these therapies with other interventions.

Pennsylvania State University

For the experimental PEIs (DBS and ABIs), similar questions and concerns arise. In the current research context, psychiatrists may not be aware of which patients are good candidates for referral to clinical trials. If these therapies are approved, similar questions about patient selection and place in treatment (for example, first line, second line, etc.) remain.⁹

Finally, each of our participant groups believed that patients and the public lack adequate knowledge about electroceutical interventions, and they emphasized the importance of giving potential patients sufficient information to enable them to provide valid informed consent. This is important in the case of the approved electroceutical therapies (ECT and rTMS), in part because of the potential for decision-making to be influenced unduly by misinformation and controversy – especially given that the media’s depiction of these interventions might influence patients’ willingness to receive helpful therapies such as ECT.¹⁰

Our interviews were used to inform the development of a national survey of these four stakeholder groups, which will provide further information about perceived barriers to accessing PEIs.

Dr. Bluhm is associate professor of philosophy at Michigan State University, East Lansing. Dr. Achtyes is director of the division of psychiatry and behavioral medicine at Michigan State University, Grand Rapids. Dr. McCright is chair of the department of sociology at Michigan State University. Dr. Cabrera is Dorothy Foehr Huck and J. Lloyd Huck Chair in Neuroethics at the Huck Institutes of the Life Sciences, Penn State University, University Park.

References

1. Cabrera LY et al. Psychiatry Res. 2022 Jul;313:114612. doi: 10.1016/j.psychres.2022.114612.

2. Accreditation Council for Graduate Medical Education. Psychiatry – Program Requirements and FAQs. https://www.acgme.org/specialties/psychiatry/program-requirements-and-faqs-and-applications/

3. American Psychiatric Association. The Practice of Electroconvulsive Therapy, Second Edition: Recommendations for Treatment, Training, and Privileging. 2001.

4. Miley RV et al. Can J Psychiatry. 2016 Sep;61(9):561-75. doi: 10.1177/0706743716660033.

5. Perera T et al. Brain Stimul. 2016 May-Jun;9(3):336-46. doi: 10.1016/j.brs.2016.03.010.

6. Cole EJ et al. Am J Psychiatry. 2020 Aug 1;177(8):716-26. doi: 10.1176/appi.ajp.2019.19070720.

7. Gabriel FC et al. PLoS One. 2020 Apr 21;15(4):e0231700. doi: 10.1371/journal.pone.0231700.

8. Woolf SH et al. BMJ. 1999 Feb 20;318(7182):527-30. doi: 10.1136/bmj.318.7182.527.

9. Widge AS et al. Biol Psychiatry. 2016 Feb 15;79(4):e9-10. doi: 10.1016/j.biopsych.2015.06.005.

10. Sienaert P. Brain Stimul. 2016 Nov-Dec;9(6):882-91. doi: 10.1016/j.brs.2016.07.005.

Psychiatric electroceutical interventions (PEIs) – including Food and Drug Administration–approved therapies like electroconvulsive therapy (ECT) and repetitive transcranial magnetic stimulation (rTMS), as well as experimental interventions such as deep brain stimulation (DBS) and adaptive brain implants (ABI) – offer therapeutic promise for patients suffering with major depressive disorder (MDD). Yet there remain many open questions regarding their use, even in cases where their safety and effectiveness is well established.

Our research aims to better understand how different stakeholder groups view these interventions. We conducted a series of interviews with psychiatrists, patients with MDD, and members of the public to more fully comprehend these groups’ perceptions of barriers to using these therapies.¹ They raised concerns about limitations to access posed by the limited geographic availability of these treatments, their cost, and lack of insurance coverage. In addition, each stakeholder group cited lack of knowledge about PEIs as a perceived barrier to their wider implementation in depression care.

Michigan State University

Our participants recognized there are significant geographic limitations to accessing PEIs, as many of these treatments are available only in large, well-resourced cities. This is especially true for DBS and ABIs as they remain investigational, require neurosurgery, and currently are offered only during clinical research trials. However, even for established therapies like ECT and rTMS, access often remains limited to larger treatment centers. Further, training on the proper implementation and use of these modalities is limited in the United States. Current requirements from the Accreditation Council for Graduate Medical Education state only that psychiatry residents demonstrate knowledge of these therapies and their indications, falling short of requiring first-hand experience in referring or administering them.²

Michigan State University

Our participants also perceived the cost of these therapies as a significant barrier affecting a large proportion of patients who could potentially benefit from them. Another frequently mentioned barrier is the lack of insurance coverage for existing PEIs, particularly rTMS. Even when insurance covers treatment with an approved PEI (for example, ECT, rTMS), there may be a requirement to have tried and failed multiple antidepressant medications first. These insurance requirements may contribute to a lack of general clarity about when these treatments should be used. The psychiatrists we interviewed, for example, were almost evenly split between believing that ECT and/or rTMS should be offered earlier in the course of therapy and believing that they should be reserved only for patients with treatment-resistant depression.

Michigan State University

Further, some psychiatrists we interviewed stated that they wanted more information about the appropriate use of these treatments. This is unsurprising, as the available guidelines for the approved electroceutical treatments are outdated. Although the American Psychiatric Association Task Force is due to publish updated guidelines for ECT, it has been more than 20 years since the current guidelines were published.³ More recent guidelines, such as those issued in 2016 by the Canadian Network for Mood and Anxiety Treatments cite studies that were even then several years old.⁴ For rTMS, newer guidelines are available, but they have not yet been revised to include recent developments such as the SAINT protocol.^5,6

While useful, clinical guidelines do not provide all of the information psychiatrists require for clinical decision-making. They are only as good as the evidence available and to the extent that they include all of the considerations important to psychiatrists and the specific patients they are treating.^7,8 We asked the psychiatrists in our interviews what practical information they would like to see included in treatment guidelines. They offered a range of suggestions: better guidance about which patients would be most likely to benefit, when to offer the treatments, and how to combine these therapies with other interventions.

Pennsylvania State University

For the experimental PEIs (DBS and ABIs), similar questions and concerns arise. In the current research context, psychiatrists may not be aware of which patients are good candidates for referral to clinical trials. If these therapies are approved, similar questions about patient selection and place in treatment (for example, first line, second line, etc.) remain.⁹

Finally, each of our participant groups believed that patients and the public lack adequate knowledge about electroceutical interventions, and they emphasized the importance of giving potential patients sufficient information to enable them to provide valid informed consent. This is important in the case of the approved electroceutical therapies (ECT and rTMS), in part because of the potential for decision-making to be influenced unduly by misinformation and controversy – especially given that the media’s depiction of these interventions might influence patients’ willingness to receive helpful therapies such as ECT.¹⁰

Our interviews were used to inform the development of a national survey of these four stakeholder groups, which will provide further information about perceived barriers to accessing PEIs.

Dr. Bluhm is associate professor of philosophy at Michigan State University, East Lansing. Dr. Achtyes is director of the division of psychiatry and behavioral medicine at Michigan State University, Grand Rapids. Dr. McCright is chair of the department of sociology at Michigan State University. Dr. Cabrera is Dorothy Foehr Huck and J. Lloyd Huck Chair in Neuroethics at the Huck Institutes of the Life Sciences, Penn State University, University Park.

References

1. Cabrera LY et al. Psychiatry Res. 2022 Jul;313:114612. doi: 10.1016/j.psychres.2022.114612.

2. Accreditation Council for Graduate Medical Education. Psychiatry – Program Requirements and FAQs. https://www.acgme.org/specialties/psychiatry/program-requirements-and-faqs-and-applications/

3. American Psychiatric Association. The Practice of Electroconvulsive Therapy, Second Edition: Recommendations for Treatment, Training, and Privileging. 2001.

4. Miley RV et al. Can J Psychiatry. 2016 Sep;61(9):561-75. doi: 10.1177/0706743716660033.

5. Perera T et al. Brain Stimul. 2016 May-Jun;9(3):336-46. doi: 10.1016/j.brs.2016.03.010.

6. Cole EJ et al. Am J Psychiatry. 2020 Aug 1;177(8):716-26. doi: 10.1176/appi.ajp.2019.19070720.

7. Gabriel FC et al. PLoS One. 2020 Apr 21;15(4):e0231700. doi: 10.1371/journal.pone.0231700.

8. Woolf SH et al. BMJ. 1999 Feb 20;318(7182):527-30. doi: 10.1136/bmj.318.7182.527.

9. Widge AS et al. Biol Psychiatry. 2016 Feb 15;79(4):e9-10. doi: 10.1016/j.biopsych.2015.06.005.

10. Sienaert P. Brain Stimul. 2016 Nov-Dec;9(6):882-91. doi: 10.1016/j.brs.2016.07.005.

Psychiatric electroceutical interventions (PEIs) – including Food and Drug Administration–approved therapies like electroconvulsive therapy (ECT) and repetitive transcranial magnetic stimulation (rTMS), as well as experimental interventions such as deep brain stimulation (DBS) and adaptive brain implants (ABI) – offer therapeutic promise for patients suffering with major depressive disorder (MDD). Yet there remain many open questions regarding their use, even in cases where their safety and effectiveness is well established.

Our research aims to better understand how different stakeholder groups view these interventions. We conducted a series of interviews with psychiatrists, patients with MDD, and members of the public to more fully comprehend these groups’ perceptions of barriers to using these therapies.¹ They raised concerns about limitations to access posed by the limited geographic availability of these treatments, their cost, and lack of insurance coverage. In addition, each stakeholder group cited lack of knowledge about PEIs as a perceived barrier to their wider implementation in depression care.

Michigan State University

Our participants recognized there are significant geographic limitations to accessing PEIs, as many of these treatments are available only in large, well-resourced cities. This is especially true for DBS and ABIs as they remain investigational, require neurosurgery, and currently are offered only during clinical research trials. However, even for established therapies like ECT and rTMS, access often remains limited to larger treatment centers. Further, training on the proper implementation and use of these modalities is limited in the United States. Current requirements from the Accreditation Council for Graduate Medical Education state only that psychiatry residents demonstrate knowledge of these therapies and their indications, falling short of requiring first-hand experience in referring or administering them.²

Michigan State University

Our participants also perceived the cost of these therapies as a significant barrier affecting a large proportion of patients who could potentially benefit from them. Another frequently mentioned barrier is the lack of insurance coverage for existing PEIs, particularly rTMS. Even when insurance covers treatment with an approved PEI (for example, ECT, rTMS), there may be a requirement to have tried and failed multiple antidepressant medications first. These insurance requirements may contribute to a lack of general clarity about when these treatments should be used. The psychiatrists we interviewed, for example, were almost evenly split between believing that ECT and/or rTMS should be offered earlier in the course of therapy and believing that they should be reserved only for patients with treatment-resistant depression.

Michigan State University

Further, some psychiatrists we interviewed stated that they wanted more information about the appropriate use of these treatments. This is unsurprising, as the available guidelines for the approved electroceutical treatments are outdated. Although the American Psychiatric Association Task Force is due to publish updated guidelines for ECT, it has been more than 20 years since the current guidelines were published.³ More recent guidelines, such as those issued in 2016 by the Canadian Network for Mood and Anxiety Treatments cite studies that were even then several years old.⁴ For rTMS, newer guidelines are available, but they have not yet been revised to include recent developments such as the SAINT protocol.^5,6

While useful, clinical guidelines do not provide all of the information psychiatrists require for clinical decision-making. They are only as good as the evidence available and to the extent that they include all of the considerations important to psychiatrists and the specific patients they are treating.^7,8 We asked the psychiatrists in our interviews what practical information they would like to see included in treatment guidelines. They offered a range of suggestions: better guidance about which patients would be most likely to benefit, when to offer the treatments, and how to combine these therapies with other interventions.

Pennsylvania State University

For the experimental PEIs (DBS and ABIs), similar questions and concerns arise. In the current research context, psychiatrists may not be aware of which patients are good candidates for referral to clinical trials. If these therapies are approved, similar questions about patient selection and place in treatment (for example, first line, second line, etc.) remain.⁹

Finally, each of our participant groups believed that patients and the public lack adequate knowledge about electroceutical interventions, and they emphasized the importance of giving potential patients sufficient information to enable them to provide valid informed consent. This is important in the case of the approved electroceutical therapies (ECT and rTMS), in part because of the potential for decision-making to be influenced unduly by misinformation and controversy – especially given that the media’s depiction of these interventions might influence patients’ willingness to receive helpful therapies such as ECT.¹⁰

Our interviews were used to inform the development of a national survey of these four stakeholder groups, which will provide further information about perceived barriers to accessing PEIs.

Dr. Bluhm is associate professor of philosophy at Michigan State University, East Lansing. Dr. Achtyes is director of the division of psychiatry and behavioral medicine at Michigan State University, Grand Rapids. Dr. McCright is chair of the department of sociology at Michigan State University. Dr. Cabrera is Dorothy Foehr Huck and J. Lloyd Huck Chair in Neuroethics at the Huck Institutes of the Life Sciences, Penn State University, University Park.

References

1. Cabrera LY et al. Psychiatry Res. 2022 Jul;313:114612. doi: 10.1016/j.psychres.2022.114612.

2. Accreditation Council for Graduate Medical Education. Psychiatry – Program Requirements and FAQs. https://www.acgme.org/specialties/psychiatry/program-requirements-and-faqs-and-applications/

3. American Psychiatric Association. The Practice of Electroconvulsive Therapy, Second Edition: Recommendations for Treatment, Training, and Privileging. 2001.

4. Miley RV et al. Can J Psychiatry. 2016 Sep;61(9):561-75. doi: 10.1177/0706743716660033.

5. Perera T et al. Brain Stimul. 2016 May-Jun;9(3):336-46. doi: 10.1016/j.brs.2016.03.010.

6. Cole EJ et al. Am J Psychiatry. 2020 Aug 1;177(8):716-26. doi: 10.1176/appi.ajp.2019.19070720.

7. Gabriel FC et al. PLoS One. 2020 Apr 21;15(4):e0231700. doi: 10.1371/journal.pone.0231700.

8. Woolf SH et al. BMJ. 1999 Feb 20;318(7182):527-30. doi: 10.1136/bmj.318.7182.527.

9. Widge AS et al. Biol Psychiatry. 2016 Feb 15;79(4):e9-10. doi: 10.1016/j.biopsych.2015.06.005.

10. Sienaert P. Brain Stimul. 2016 Nov-Dec;9(6):882-91. doi: 10.1016/j.brs.2016.07.005.

Allergic contact dermatitis (ACD) is a delayed type IV hypersensitivity reaction that usually manifests with eczematous lesions within hours to days after exposure to a contact allergen. The primary treatment of ACD consists of allergen avoidance, but medications also may be necessary to manage symptoms, particularly in cases where avoidance alone does not lead to resolution of dermatitis. At present, no medical therapies are explicitly approved for use in the management of ACD. Janus kinase (JAK) inhibitors are a class of small molecule inhibitors that are used for the treatment of a range of inflammatory diseases, such as rheumatoid arthritis and psoriatic arthritis. Several oral and topical JAK inhibitors also have recently been approved by the US Food and Drug Administration (FDA) for atopic dermatitis (AD). In this article, we discuss this important class of medications and the role that they may play in the off-label management of refractory ACD.

JAK/STAT Signaling Pathway

The JAK/signal transducer and activator of transcription (STAT) pathway plays a crucial role in many biologic processes. Notably, JAK/STAT signaling is involved in the development and regulation of the immune system.¹ The cascade begins when a particular transmembrane receptor binds a ligand, such as an interferon or interleukin.² Upon ligand binding, the receptor dimerizes or oligomerizes, bringing the relevant JAK proteins into close approximation to each other.³ This allows the JAK proteins to autophosphorylate or transphosphorylate.^2-4 Phosphorylation activates the JAK proteins and increases their kinase activity.³ In humans, there are 4 JAK proteins: JAK1, JAK2, JAK3, and tyrosine kinase 2.⁴ When activated, the JAK proteins phosphorylate specific tyrosine residues on the receptor, which creates a docking site for STAT proteins. After binding, the STAT proteins then are phosphorylated, leading to their dimerization and translocation to the nucleus.^2,3 Once in the nucleus, the STAT proteins act as transcription factors for target genes.³

JAK Inhibitors

Janus kinase inhibitors are immunomodulatory medications that work through inhibition of 1 or more of the JAK proteins in the JAK/STAT pathway. Through this mechanism, JAK inhibitors can impede the activity of proinflammatory cytokines and T cells.⁴ A brief overview of the commercially available JAK inhibitors in Europe, Japan, and the United States is provided in the Table.^5-29

Of the approved JAK inhibitors, more than 40% are indicated for AD. The first JAK inhibitor to be approved in the topical form was delgocitinib in 2020 in Japan.⁵ In a phase 3 trial, delgocitinib demonstrated significant reductions in modified Eczema Area and Severity Index (EASI) score (P<.001) as well as Peak Pruritus Numerical Rating Scale (P<.001) when compared with vehicle.³⁰ Topical ruxolitinib soon followed when its approval for AD was announced by the FDA in 2021.³¹ Results from 2 phase 3 trials found that significantly more patients achieved investigator global assessment (IGA) treatment success (P<.0001) and a significant reduction in itch as measured by the Peak Pruritus Numerical Rating Scale (P<.001) with topical ruxolitinib vs vehicle.³²

The first oral JAK inhibitor to attain approval for AD was baricitinib in Europe and Japan, but it is not currently approved for this indication in the United States by the FDA.^11,12,33 Consistent findings across phase 3 trials revealed that baricitinib was more effective at achieving IGA treatment success and improved EASI scores compared with placebo.³³

Upadacitinib, another oral JAK inhibitor, was subsequently approved for AD in Europe and Japan in 2021 and in the United States in early 2022.^5,9,26,27 Two replicate phase 3 trials demonstrated significant improvement in EASI score, itch, and quality of life with upadacitinib compared with placebo (P<.0001).³⁴ Abrocitinib was granted FDA approval for AD in the same time period, with phase 3 trials exhibiting greater responses in IGA and EASI scores vs placebo.³⁵

Potential for Use in ACD

Given the successful use of JAK inhibitors in the management of AD, there is optimism that these medications also may have potential application in ACD. Recent literature suggests that the 2 conditions may be more closely related mechanistically than previously understood. As a result, AD and ACD often are managed with the same therapeutic agents.³⁶

Although the exact etiology of ACD is still being elucidated, activation of T cells and cytokines plays an important role.³⁷ Notably, more than 40 cytokines exert their effects through the JAK/STAT signaling pathway, including IL-2, IL-6, IL-17, IL-22, and IFN-γ.^37,38 A study on nickel contact allergy revealed that JAK/STAT activation may regulate the balance between IL-12 and IL-23 and increase type 1 T-helper (T_H1) polarization.³⁹ Skin inflammation and chronic pruritus, which are major components of ACD, also are thought to be mediated in part by JAK signaling.^34,40

Animal studies have suggested that JAK inhibitors may show benefit in the management of ACD. Rats with oxazolone-induced ACD were found to have less swelling and epidermal thickening in the area of induced dermatitis after treatment with oral tofacitinib, comparable to the effects of cyclosporine. Tofacitinib was presumed to exert its effects through cytokine suppression, particularly that of IFN-γ, IL-22, and tumor necrosis factor α.⁴¹ In a separate study on mice with toluene-2,4-diisocyanate–induced ACD, both tofacitinib and another JAK inhibitor, oclacitinib, demonstrated inhibition of cytokine production, migration, and maturation of bone marrow–derived dendritic cells. Both topical and oral formulations of these 2 JAK inhibitors also were found to decrease scratching behavior; only the topicals improved ear thickness (used as a marker of skin inflammation), suggesting potential benefits to local application.⁴² In a murine model, oral delgocitinib also attenuated contact hypersensitivity via inhibition of antigen-specific T-cell proliferation and cytokine production.³⁷ Finally, in a randomized clinical trial conducted on dogs with allergic dermatitis (of which 10% were presumed to be from contact allergy), oral oclacitinib significantly reduced pruritus and clinical severity scores vs placebo (P<.0001).⁴³

There also are early clinical studies and case reports highlighting the effective use of JAK inhibitors in the management of ACD in humans. A 37-year-old man with occupational airborne ACD to Compositae saw full clearance of his dermatitis with daily oral abrocitinib after topical corticosteroids and dupilumab failed.⁴⁴ Another patient, a 57-year-old woman, had near-complete resolution of chronic Parthenium-induced airborne ACD after starting twice-daily oral tofacitinib. Allergen avoidance, as well as multiple medications, including topical and oral corticosteroids, topical calcineurin inhibitors, and azathioprine, previously failed in this patient.⁴⁵ Finally, a phase 2 study on patients with irritant and nonirritant chronic hand eczema found that significantly more patients achieved treatment success (as measured by the physician global assessment) with topical delgocitinib vs vehicle (P=.009).⁴⁶ Chronic hand eczema may be due to a variety of causes, including AD, irritant contact dermatitis, and ACD. Thus, these studies begin to highlight the potential role for JAK inhibitors in the management of refractory ACD.

Side Effects of JAK Inhibitors

The safety profile of JAK inhibitors must be taken into consideration. In general, topical JAK inhibitors are safe and well tolerated, with the majority of adverse events (AEs) seen in clinical trials considered mild or unrelated to the medication.^30,32 Nasopharyngitis, local skin infection, and acne were reported; a systematic review found no increased risk of AEs with topical JAK inhibitors compared with placebo.^30,32,47 Application-site reactions, a common concern among the existing topical calcineurin and phosphodiesterase 4 inhibitors, were rare (approximately 2% of patients).⁴⁷ The most frequent AEs seen in clinical trials of oral JAK inhibitors included acne, nasopharyngitis/upper respiratory tract infections, nausea, and headache.^33-35 Herpes simplex virus infection and worsening of AD also were seen. Although elevations in creatine phosphokinase levels were reported, patients often were asymptomatic and elevations were related to exercise or resolved without treatment interruption.^33-35

As a class, JAK inhibitors carry a boxed warning for serious infections, malignancy, major adverse cardiovascular events, thrombosis, and mortality. The FDA placed this label on JAK inhibitors because of the results of a randomized controlled trial of oral tofacitinib vs tumor necrosis factor α inhibitors in RA.^48,49 Notably, participants in the trial had to be 50 years or older and have at least 1 additional cardiovascular risk factor. Postmarket safety data are still being collected for patients with AD and other dermatologic conditions, but the findings of safety analyses have been reassuring to date.^50,51 Regular follow-up and routine laboratory monitoring are recommended for any patient started on an oral JAK inhibitor, which often includes monitoring of the complete blood cell count, comprehensive metabolic panel, and lipids, as well as baseline screening for tuberculosis and hepatitis.^52,53 For topical JAK inhibitors, no specific laboratory monitoring is recommended.

Finally, it must be considered that the challenges of off-label prescribing combined with high costs may limit access to JAK inhibitors for use in ACD.

Final Interpretation

Early investigations, including studies on animals and humans, suggest that JAK inhibitors are a promising option in the management of treatment-refractory ACD. Patients and providers should be aware of both the benefits and known side effects of JAK inhibitors prior to treatment initiation.

Allergic contact dermatitis (ACD) is a delayed type IV hypersensitivity reaction that usually manifests with eczematous lesions within hours to days after exposure to a contact allergen. The primary treatment of ACD consists of allergen avoidance, but medications also may be necessary to manage symptoms, particularly in cases where avoidance alone does not lead to resolution of dermatitis. At present, no medical therapies are explicitly approved for use in the management of ACD. Janus kinase (JAK) inhibitors are a class of small molecule inhibitors that are used for the treatment of a range of inflammatory diseases, such as rheumatoid arthritis and psoriatic arthritis. Several oral and topical JAK inhibitors also have recently been approved by the US Food and Drug Administration (FDA) for atopic dermatitis (AD). In this article, we discuss this important class of medications and the role that they may play in the off-label management of refractory ACD.

JAK/STAT Signaling Pathway

The JAK/signal transducer and activator of transcription (STAT) pathway plays a crucial role in many biologic processes. Notably, JAK/STAT signaling is involved in the development and regulation of the immune system.¹ The cascade begins when a particular transmembrane receptor binds a ligand, such as an interferon or interleukin.² Upon ligand binding, the receptor dimerizes or oligomerizes, bringing the relevant JAK proteins into close approximation to each other.³ This allows the JAK proteins to autophosphorylate or transphosphorylate.^2-4 Phosphorylation activates the JAK proteins and increases their kinase activity.³ In humans, there are 4 JAK proteins: JAK1, JAK2, JAK3, and tyrosine kinase 2.⁴ When activated, the JAK proteins phosphorylate specific tyrosine residues on the receptor, which creates a docking site for STAT proteins. After binding, the STAT proteins then are phosphorylated, leading to their dimerization and translocation to the nucleus.^2,3 Once in the nucleus, the STAT proteins act as transcription factors for target genes.³

JAK Inhibitors

Janus kinase inhibitors are immunomodulatory medications that work through inhibition of 1 or more of the JAK proteins in the JAK/STAT pathway. Through this mechanism, JAK inhibitors can impede the activity of proinflammatory cytokines and T cells.⁴ A brief overview of the commercially available JAK inhibitors in Europe, Japan, and the United States is provided in the Table.^5-29

Of the approved JAK inhibitors, more than 40% are indicated for AD. The first JAK inhibitor to be approved in the topical form was delgocitinib in 2020 in Japan.⁵ In a phase 3 trial, delgocitinib demonstrated significant reductions in modified Eczema Area and Severity Index (EASI) score (P<.001) as well as Peak Pruritus Numerical Rating Scale (P<.001) when compared with vehicle.³⁰ Topical ruxolitinib soon followed when its approval for AD was announced by the FDA in 2021.³¹ Results from 2 phase 3 trials found that significantly more patients achieved investigator global assessment (IGA) treatment success (P<.0001) and a significant reduction in itch as measured by the Peak Pruritus Numerical Rating Scale (P<.001) with topical ruxolitinib vs vehicle.³²

The first oral JAK inhibitor to attain approval for AD was baricitinib in Europe and Japan, but it is not currently approved for this indication in the United States by the FDA.^11,12,33 Consistent findings across phase 3 trials revealed that baricitinib was more effective at achieving IGA treatment success and improved EASI scores compared with placebo.³³

Upadacitinib, another oral JAK inhibitor, was subsequently approved for AD in Europe and Japan in 2021 and in the United States in early 2022.^5,9,26,27 Two replicate phase 3 trials demonstrated significant improvement in EASI score, itch, and quality of life with upadacitinib compared with placebo (P<.0001).³⁴ Abrocitinib was granted FDA approval for AD in the same time period, with phase 3 trials exhibiting greater responses in IGA and EASI scores vs placebo.³⁵

Potential for Use in ACD

Given the successful use of JAK inhibitors in the management of AD, there is optimism that these medications also may have potential application in ACD. Recent literature suggests that the 2 conditions may be more closely related mechanistically than previously understood. As a result, AD and ACD often are managed with the same therapeutic agents.³⁶

Although the exact etiology of ACD is still being elucidated, activation of T cells and cytokines plays an important role.³⁷ Notably, more than 40 cytokines exert their effects through the JAK/STAT signaling pathway, including IL-2, IL-6, IL-17, IL-22, and IFN-γ.^37,38 A study on nickel contact allergy revealed that JAK/STAT activation may regulate the balance between IL-12 and IL-23 and increase type 1 T-helper (T_H1) polarization.³⁹ Skin inflammation and chronic pruritus, which are major components of ACD, also are thought to be mediated in part by JAK signaling.^34,40

Animal studies have suggested that JAK inhibitors may show benefit in the management of ACD. Rats with oxazolone-induced ACD were found to have less swelling and epidermal thickening in the area of induced dermatitis after treatment with oral tofacitinib, comparable to the effects of cyclosporine. Tofacitinib was presumed to exert its effects through cytokine suppression, particularly that of IFN-γ, IL-22, and tumor necrosis factor α.⁴¹ In a separate study on mice with toluene-2,4-diisocyanate–induced ACD, both tofacitinib and another JAK inhibitor, oclacitinib, demonstrated inhibition of cytokine production, migration, and maturation of bone marrow–derived dendritic cells. Both topical and oral formulations of these 2 JAK inhibitors also were found to decrease scratching behavior; only the topicals improved ear thickness (used as a marker of skin inflammation), suggesting potential benefits to local application.⁴² In a murine model, oral delgocitinib also attenuated contact hypersensitivity via inhibition of antigen-specific T-cell proliferation and cytokine production.³⁷ Finally, in a randomized clinical trial conducted on dogs with allergic dermatitis (of which 10% were presumed to be from contact allergy), oral oclacitinib significantly reduced pruritus and clinical severity scores vs placebo (P<.0001).⁴³

There also are early clinical studies and case reports highlighting the effective use of JAK inhibitors in the management of ACD in humans. A 37-year-old man with occupational airborne ACD to Compositae saw full clearance of his dermatitis with daily oral abrocitinib after topical corticosteroids and dupilumab failed.⁴⁴ Another patient, a 57-year-old woman, had near-complete resolution of chronic Parthenium-induced airborne ACD after starting twice-daily oral tofacitinib. Allergen avoidance, as well as multiple medications, including topical and oral corticosteroids, topical calcineurin inhibitors, and azathioprine, previously failed in this patient.⁴⁵ Finally, a phase 2 study on patients with irritant and nonirritant chronic hand eczema found that significantly more patients achieved treatment success (as measured by the physician global assessment) with topical delgocitinib vs vehicle (P=.009).⁴⁶ Chronic hand eczema may be due to a variety of causes, including AD, irritant contact dermatitis, and ACD. Thus, these studies begin to highlight the potential role for JAK inhibitors in the management of refractory ACD.

Side Effects of JAK Inhibitors

The safety profile of JAK inhibitors must be taken into consideration. In general, topical JAK inhibitors are safe and well tolerated, with the majority of adverse events (AEs) seen in clinical trials considered mild or unrelated to the medication.^30,32 Nasopharyngitis, local skin infection, and acne were reported; a systematic review found no increased risk of AEs with topical JAK inhibitors compared with placebo.^30,32,47 Application-site reactions, a common concern among the existing topical calcineurin and phosphodiesterase 4 inhibitors, were rare (approximately 2% of patients).⁴⁷ The most frequent AEs seen in clinical trials of oral JAK inhibitors included acne, nasopharyngitis/upper respiratory tract infections, nausea, and headache.^33-35 Herpes simplex virus infection and worsening of AD also were seen. Although elevations in creatine phosphokinase levels were reported, patients often were asymptomatic and elevations were related to exercise or resolved without treatment interruption.^33-35

As a class, JAK inhibitors carry a boxed warning for serious infections, malignancy, major adverse cardiovascular events, thrombosis, and mortality. The FDA placed this label on JAK inhibitors because of the results of a randomized controlled trial of oral tofacitinib vs tumor necrosis factor α inhibitors in RA.^48,49 Notably, participants in the trial had to be 50 years or older and have at least 1 additional cardiovascular risk factor. Postmarket safety data are still being collected for patients with AD and other dermatologic conditions, but the findings of safety analyses have been reassuring to date.^50,51 Regular follow-up and routine laboratory monitoring are recommended for any patient started on an oral JAK inhibitor, which often includes monitoring of the complete blood cell count, comprehensive metabolic panel, and lipids, as well as baseline screening for tuberculosis and hepatitis.^52,53 For topical JAK inhibitors, no specific laboratory monitoring is recommended.

Finally, it must be considered that the challenges of off-label prescribing combined with high costs may limit access to JAK inhibitors for use in ACD.

Final Interpretation

Early investigations, including studies on animals and humans, suggest that JAK inhibitors are a promising option in the management of treatment-refractory ACD. Patients and providers should be aware of both the benefits and known side effects of JAK inhibitors prior to treatment initiation.

Allergic contact dermatitis (ACD) is a delayed type IV hypersensitivity reaction that usually manifests with eczematous lesions within hours to days after exposure to a contact allergen. The primary treatment of ACD consists of allergen avoidance, but medications also may be necessary to manage symptoms, particularly in cases where avoidance alone does not lead to resolution of dermatitis. At present, no medical therapies are explicitly approved for use in the management of ACD. Janus kinase (JAK) inhibitors are a class of small molecule inhibitors that are used for the treatment of a range of inflammatory diseases, such as rheumatoid arthritis and psoriatic arthritis. Several oral and topical JAK inhibitors also have recently been approved by the US Food and Drug Administration (FDA) for atopic dermatitis (AD). In this article, we discuss this important class of medications and the role that they may play in the off-label management of refractory ACD.

JAK/STAT Signaling Pathway

The JAK/signal transducer and activator of transcription (STAT) pathway plays a crucial role in many biologic processes. Notably, JAK/STAT signaling is involved in the development and regulation of the immune system.¹ The cascade begins when a particular transmembrane receptor binds a ligand, such as an interferon or interleukin.² Upon ligand binding, the receptor dimerizes or oligomerizes, bringing the relevant JAK proteins into close approximation to each other.³ This allows the JAK proteins to autophosphorylate or transphosphorylate.^2-4 Phosphorylation activates the JAK proteins and increases their kinase activity.³ In humans, there are 4 JAK proteins: JAK1, JAK2, JAK3, and tyrosine kinase 2.⁴ When activated, the JAK proteins phosphorylate specific tyrosine residues on the receptor, which creates a docking site for STAT proteins. After binding, the STAT proteins then are phosphorylated, leading to their dimerization and translocation to the nucleus.^2,3 Once in the nucleus, the STAT proteins act as transcription factors for target genes.³

JAK Inhibitors

Janus kinase inhibitors are immunomodulatory medications that work through inhibition of 1 or more of the JAK proteins in the JAK/STAT pathway. Through this mechanism, JAK inhibitors can impede the activity of proinflammatory cytokines and T cells.⁴ A brief overview of the commercially available JAK inhibitors in Europe, Japan, and the United States is provided in the Table.^5-29

Of the approved JAK inhibitors, more than 40% are indicated for AD. The first JAK inhibitor to be approved in the topical form was delgocitinib in 2020 in Japan.⁵ In a phase 3 trial, delgocitinib demonstrated significant reductions in modified Eczema Area and Severity Index (EASI) score (P<.001) as well as Peak Pruritus Numerical Rating Scale (P<.001) when compared with vehicle.³⁰ Topical ruxolitinib soon followed when its approval for AD was announced by the FDA in 2021.³¹ Results from 2 phase 3 trials found that significantly more patients achieved investigator global assessment (IGA) treatment success (P<.0001) and a significant reduction in itch as measured by the Peak Pruritus Numerical Rating Scale (P<.001) with topical ruxolitinib vs vehicle.³²

The first oral JAK inhibitor to attain approval for AD was baricitinib in Europe and Japan, but it is not currently approved for this indication in the United States by the FDA.^11,12,33 Consistent findings across phase 3 trials revealed that baricitinib was more effective at achieving IGA treatment success and improved EASI scores compared with placebo.³³

Upadacitinib, another oral JAK inhibitor, was subsequently approved for AD in Europe and Japan in 2021 and in the United States in early 2022.^5,9,26,27 Two replicate phase 3 trials demonstrated significant improvement in EASI score, itch, and quality of life with upadacitinib compared with placebo (P<.0001).³⁴ Abrocitinib was granted FDA approval for AD in the same time period, with phase 3 trials exhibiting greater responses in IGA and EASI scores vs placebo.³⁵

Potential for Use in ACD

Given the successful use of JAK inhibitors in the management of AD, there is optimism that these medications also may have potential application in ACD. Recent literature suggests that the 2 conditions may be more closely related mechanistically than previously understood. As a result, AD and ACD often are managed with the same therapeutic agents.³⁶

Although the exact etiology of ACD is still being elucidated, activation of T cells and cytokines plays an important role.³⁷ Notably, more than 40 cytokines exert their effects through the JAK/STAT signaling pathway, including IL-2, IL-6, IL-17, IL-22, and IFN-γ.^37,38 A study on nickel contact allergy revealed that JAK/STAT activation may regulate the balance between IL-12 and IL-23 and increase type 1 T-helper (T_H1) polarization.³⁹ Skin inflammation and chronic pruritus, which are major components of ACD, also are thought to be mediated in part by JAK signaling.^34,40

Animal studies have suggested that JAK inhibitors may show benefit in the management of ACD. Rats with oxazolone-induced ACD were found to have less swelling and epidermal thickening in the area of induced dermatitis after treatment with oral tofacitinib, comparable to the effects of cyclosporine. Tofacitinib was presumed to exert its effects through cytokine suppression, particularly that of IFN-γ, IL-22, and tumor necrosis factor α.⁴¹ In a separate study on mice with toluene-2,4-diisocyanate–induced ACD, both tofacitinib and another JAK inhibitor, oclacitinib, demonstrated inhibition of cytokine production, migration, and maturation of bone marrow–derived dendritic cells. Both topical and oral formulations of these 2 JAK inhibitors also were found to decrease scratching behavior; only the topicals improved ear thickness (used as a marker of skin inflammation), suggesting potential benefits to local application.⁴² In a murine model, oral delgocitinib also attenuated contact hypersensitivity via inhibition of antigen-specific T-cell proliferation and cytokine production.³⁷ Finally, in a randomized clinical trial conducted on dogs with allergic dermatitis (of which 10% were presumed to be from contact allergy), oral oclacitinib significantly reduced pruritus and clinical severity scores vs placebo (P<.0001).⁴³

There also are early clinical studies and case reports highlighting the effective use of JAK inhibitors in the management of ACD in humans. A 37-year-old man with occupational airborne ACD to Compositae saw full clearance of his dermatitis with daily oral abrocitinib after topical corticosteroids and dupilumab failed.⁴⁴ Another patient, a 57-year-old woman, had near-complete resolution of chronic Parthenium-induced airborne ACD after starting twice-daily oral tofacitinib. Allergen avoidance, as well as multiple medications, including topical and oral corticosteroids, topical calcineurin inhibitors, and azathioprine, previously failed in this patient.⁴⁵ Finally, a phase 2 study on patients with irritant and nonirritant chronic hand eczema found that significantly more patients achieved treatment success (as measured by the physician global assessment) with topical delgocitinib vs vehicle (P=.009).⁴⁶ Chronic hand eczema may be due to a variety of causes, including AD, irritant contact dermatitis, and ACD. Thus, these studies begin to highlight the potential role for JAK inhibitors in the management of refractory ACD.

Side Effects of JAK Inhibitors

The safety profile of JAK inhibitors must be taken into consideration. In general, topical JAK inhibitors are safe and well tolerated, with the majority of adverse events (AEs) seen in clinical trials considered mild or unrelated to the medication.^30,32 Nasopharyngitis, local skin infection, and acne were reported; a systematic review found no increased risk of AEs with topical JAK inhibitors compared with placebo.^30,32,47 Application-site reactions, a common concern among the existing topical calcineurin and phosphodiesterase 4 inhibitors, were rare (approximately 2% of patients).⁴⁷ The most frequent AEs seen in clinical trials of oral JAK inhibitors included acne, nasopharyngitis/upper respiratory tract infections, nausea, and headache.^33-35 Herpes simplex virus infection and worsening of AD also were seen. Although elevations in creatine phosphokinase levels were reported, patients often were asymptomatic and elevations were related to exercise or resolved without treatment interruption.^33-35

As a class, JAK inhibitors carry a boxed warning for serious infections, malignancy, major adverse cardiovascular events, thrombosis, and mortality. The FDA placed this label on JAK inhibitors because of the results of a randomized controlled trial of oral tofacitinib vs tumor necrosis factor α inhibitors in RA.^48,49 Notably, participants in the trial had to be 50 years or older and have at least 1 additional cardiovascular risk factor. Postmarket safety data are still being collected for patients with AD and other dermatologic conditions, but the findings of safety analyses have been reassuring to date.^50,51 Regular follow-up and routine laboratory monitoring are recommended for any patient started on an oral JAK inhibitor, which often includes monitoring of the complete blood cell count, comprehensive metabolic panel, and lipids, as well as baseline screening for tuberculosis and hepatitis.^52,53 For topical JAK inhibitors, no specific laboratory monitoring is recommended.

Finally, it must be considered that the challenges of off-label prescribing combined with high costs may limit access to JAK inhibitors for use in ACD.

Final Interpretation

Early investigations, including studies on animals and humans, suggest that JAK inhibitors are a promising option in the management of treatment-refractory ACD. Patients and providers should be aware of both the benefits and known side effects of JAK inhibitors prior to treatment initiation.

Elevated depressive symptoms were associated with an additional brain age of nearly 3 years, based on data from more than 600 individuals.

Previous research suggests a possible link between depression and increased risk of dementia in older adults, but the association between depression and brain health in early adulthood and midlife has not been well studied, wrote Christina S. Dintica, PhD, of the University of California, San Francisco, and colleagues.

In a study published in the Journal of Affective Disorders, the researchers identified 649 individuals aged 23-36 at baseline who were part of the Coronary Artery Risk Development in Young Adults (CARDIA) study. All participants underwent brain MRI and cognitive testing. Depressive symptoms were assessed six times over a 25-year period using the Center for Epidemiological Studies Depression scale (CES–D), and the scores were analyzed as time-weighted averages (TWA). Elevated depressive symptoms were defined as CES-D scores of 16 or higher. Brain age was assessed via high-dimensional neuroimaging. Approximately half of the participants were female, and half were Black.

Overall, each 5-point increment in TWA depression symptoms over 25 years was associated with a 1-year increase in brain age, and individuals with elevated TWA depression averaged a 3-year increase in brain age compared with those with lower levels of depression after controlling for factors including chronological age, sex, education, race, MRI scanning site, and intracranial volume, they said. The association was attenuated in a model controlling for antidepressant use, and further attenuated after adjusting for smoking, alcohol consumption, income, body mass index, diabetes, and physical exercise.

The researchers also investigated the impact of the age period of elevated depressive symptoms on brain age. Compared with low depressive symptoms, elevated TWA CES-D at ages 30-39 years, 40-49 years, and 50-59 years was associated with increased brain ages of 2.43, 3.19, and 1.82.

In addition, elevated depressive symptoms were associated with a threefold increase in the odds of poor cognitive function at midlife (odds ratio, 3.30), although these odds were reduced after adjusting for use of antidepressants (OR, 1.47).

The mechanisms of action for the link between depression and accelerated brain aging remains uncertain, the researchers wrote in their discussion. “Studies over the last 20 years have demonstrated that increased inflammation and hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis are two of the most consistent biological findings in major depression, which have been linked to premature aging,” they noted. “Alternative explanations for the link between depression and adverse brain health could be underlying factors that explain both outcomes rather independently, such as low socioeconomic status, childhood maltreatment, or shared genetic effects,” they added.

Adjustment for antidepressant use had little effect overall on the association between depressive symptom severity and brain age, they said.

The current study findings were limited by the single assessment of brain age, which prevented evaluation of the temporality of the association between brain aging and depression, the researchers noted.

However, the results were strengthened by the large and diverse cohort, long-term follow-up, and use of high-dimensional neuroimaging, they said. Longitudinal studies are needed to explore mechanisms of action and the potential benefits of antidepressants, they added.

In the meantime, monitoring and treating depressive symptoms in young adults may help promote brain health in midlife and older age, they concluded.

The CARDIA study was supported by the National Heart, Lung, and Blood Institute, the National Institute on Aging, and the Alzheimer’s Association. The researchers had no financial conflicts to disclose.

Elevated depressive symptoms were associated with an additional brain age of nearly 3 years, based on data from more than 600 individuals.

Previous research suggests a possible link between depression and increased risk of dementia in older adults, but the association between depression and brain health in early adulthood and midlife has not been well studied, wrote Christina S. Dintica, PhD, of the University of California, San Francisco, and colleagues.

In a study published in the Journal of Affective Disorders, the researchers identified 649 individuals aged 23-36 at baseline who were part of the Coronary Artery Risk Development in Young Adults (CARDIA) study. All participants underwent brain MRI and cognitive testing. Depressive symptoms were assessed six times over a 25-year period using the Center for Epidemiological Studies Depression scale (CES–D), and the scores were analyzed as time-weighted averages (TWA). Elevated depressive symptoms were defined as CES-D scores of 16 or higher. Brain age was assessed via high-dimensional neuroimaging. Approximately half of the participants were female, and half were Black.

Overall, each 5-point increment in TWA depression symptoms over 25 years was associated with a 1-year increase in brain age, and individuals with elevated TWA depression averaged a 3-year increase in brain age compared with those with lower levels of depression after controlling for factors including chronological age, sex, education, race, MRI scanning site, and intracranial volume, they said. The association was attenuated in a model controlling for antidepressant use, and further attenuated after adjusting for smoking, alcohol consumption, income, body mass index, diabetes, and physical exercise.

The researchers also investigated the impact of the age period of elevated depressive symptoms on brain age. Compared with low depressive symptoms, elevated TWA CES-D at ages 30-39 years, 40-49 years, and 50-59 years was associated with increased brain ages of 2.43, 3.19, and 1.82.

In addition, elevated depressive symptoms were associated with a threefold increase in the odds of poor cognitive function at midlife (odds ratio, 3.30), although these odds were reduced after adjusting for use of antidepressants (OR, 1.47).

The mechanisms of action for the link between depression and accelerated brain aging remains uncertain, the researchers wrote in their discussion. “Studies over the last 20 years have demonstrated that increased inflammation and hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis are two of the most consistent biological findings in major depression, which have been linked to premature aging,” they noted. “Alternative explanations for the link between depression and adverse brain health could be underlying factors that explain both outcomes rather independently, such as low socioeconomic status, childhood maltreatment, or shared genetic effects,” they added.

Adjustment for antidepressant use had little effect overall on the association between depressive symptom severity and brain age, they said.

The current study findings were limited by the single assessment of brain age, which prevented evaluation of the temporality of the association between brain aging and depression, the researchers noted.

However, the results were strengthened by the large and diverse cohort, long-term follow-up, and use of high-dimensional neuroimaging, they said. Longitudinal studies are needed to explore mechanisms of action and the potential benefits of antidepressants, they added.

In the meantime, monitoring and treating depressive symptoms in young adults may help promote brain health in midlife and older age, they concluded.

The CARDIA study was supported by the National Heart, Lung, and Blood Institute, the National Institute on Aging, and the Alzheimer’s Association. The researchers had no financial conflicts to disclose.

Elevated depressive symptoms were associated with an additional brain age of nearly 3 years, based on data from more than 600 individuals.

Previous research suggests a possible link between depression and increased risk of dementia in older adults, but the association between depression and brain health in early adulthood and midlife has not been well studied, wrote Christina S. Dintica, PhD, of the University of California, San Francisco, and colleagues.

In a study published in the Journal of Affective Disorders, the researchers identified 649 individuals aged 23-36 at baseline who were part of the Coronary Artery Risk Development in Young Adults (CARDIA) study. All participants underwent brain MRI and cognitive testing. Depressive symptoms were assessed six times over a 25-year period using the Center for Epidemiological Studies Depression scale (CES–D), and the scores were analyzed as time-weighted averages (TWA). Elevated depressive symptoms were defined as CES-D scores of 16 or higher. Brain age was assessed via high-dimensional neuroimaging. Approximately half of the participants were female, and half were Black.

Overall, each 5-point increment in TWA depression symptoms over 25 years was associated with a 1-year increase in brain age, and individuals with elevated TWA depression averaged a 3-year increase in brain age compared with those with lower levels of depression after controlling for factors including chronological age, sex, education, race, MRI scanning site, and intracranial volume, they said. The association was attenuated in a model controlling for antidepressant use, and further attenuated after adjusting for smoking, alcohol consumption, income, body mass index, diabetes, and physical exercise.

The researchers also investigated the impact of the age period of elevated depressive symptoms on brain age. Compared with low depressive symptoms, elevated TWA CES-D at ages 30-39 years, 40-49 years, and 50-59 years was associated with increased brain ages of 2.43, 3.19, and 1.82.

In addition, elevated depressive symptoms were associated with a threefold increase in the odds of poor cognitive function at midlife (odds ratio, 3.30), although these odds were reduced after adjusting for use of antidepressants (OR, 1.47).

The mechanisms of action for the link between depression and accelerated brain aging remains uncertain, the researchers wrote in their discussion. “Studies over the last 20 years have demonstrated that increased inflammation and hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis are two of the most consistent biological findings in major depression, which have been linked to premature aging,” they noted. “Alternative explanations for the link between depression and adverse brain health could be underlying factors that explain both outcomes rather independently, such as low socioeconomic status, childhood maltreatment, or shared genetic effects,” they added.

Adjustment for antidepressant use had little effect overall on the association between depressive symptom severity and brain age, they said.

The current study findings were limited by the single assessment of brain age, which prevented evaluation of the temporality of the association between brain aging and depression, the researchers noted.

However, the results were strengthened by the large and diverse cohort, long-term follow-up, and use of high-dimensional neuroimaging, they said. Longitudinal studies are needed to explore mechanisms of action and the potential benefits of antidepressants, they added.

In the meantime, monitoring and treating depressive symptoms in young adults may help promote brain health in midlife and older age, they concluded.

The CARDIA study was supported by the National Heart, Lung, and Blood Institute, the National Institute on Aging, and the Alzheimer’s Association. The researchers had no financial conflicts to disclose.

The Diagnosis: Endocrine Mucin-Producing Sweat Gland Carcinoma

Endocrine mucin-producing sweat gland carcinoma (EMPSGC) is a rare cutaneous adnexal tumor that characteristically presents as slowgrowing, flesh-colored papules, nodules, or cystic lesions around the periorbital skin in elderly female patients.¹ Histopathology of EMPSGCs reveals well-circumscribed multinodular dermal lesions that can be either cystic or solid and often are arranged in papillary and cribriform patterns (quiz image). Nests of uniform tumor cells are composed of small- to medium-sized epithelial cells with monomorphic nuclei showing fine to stippled chromatin.² Histologically, EMPSGC resembles a solid papillary carcinoma of the breast, which is attributed to their common embryologic origin.³ Intracytoplasmic and extracellular mucin often are seen on hematoxylin and eosin staining.² Variable immunohistochemical stain expression has been reported, including positive staining with synaptophysin and chromogranin. Other markers include cytokeratin CAM 5.2, epithelial membrane antigen, estrogen or progesterone receptors, and cytokeratin 7.⁴ Endocrine mucin-producing sweat gland carcinoma is thought to be a precursor to invasive neuroendocrine-type primary cutaneous mucinous carcinoma. Primary cutaneous mucinous carcinoma has been associated with EMPSGC in approximately 35.7% of cases. Histologically, primary cutaneous mucinous carcinoma that has transformed from EMPSGC would show an infiltration of tumor nests with desmoplastic stroma or mucin pools with clusters of tumor cells.²

Primary cutaneous adenoid cystic carcinoma is a rare malignant tumor that often presents on the head and neck. It usually appears as a single, slowly growing subcutaneous nodule or multinodular plaque.^5,6 Histologic features include basaloid cells in alternating tubular and cribriform patterns. The cribriform areas are composed of pseudoglandular adenoid spaces that contain mucin, basement membrane zone material, and cellular debris from necrotic neoplastic cells (Figure 1).⁷ Primary cutaneous adenoid cystic carcinoma predominantly is dermal with extension to the subcutaneous tissue. True ductal structures that demonstrate decapitation secretion also may be present.⁷

Basal cell carcinoma (adenoid type) presents as a pigmented or nonpigmented nodule or ulcer on sunexposed areas of the head and neck. Histopathology reveals basaloid cells surrounding islands of connective tissue resulting in a lacelike pattern (Figure 2). The lumina may contain a colloidal substance or amorphous granular material.⁸ The characteristic features of basal cell carcinomas, such as nests of basaloid cells with peripheral palisading cells, retraction of adjacent stroma, increased apoptosis and mitotic figures, and connection to the epidermis, can be helpful to distinguish basal cell carcinoma histologically from EMPSGC.²

Apocrine hidrocystomas clinically present as round, flesh-colored, shiny or translucent, dome-shaped papules or nodules near the eyelid margin or lateral canthus.⁹ Histologically, they are composed of proliferating apocrine secretory coils with an epithelial side of cuboidal or columnar cells and a luminal side exhibiting decapitation secretion (Figure 3).² An epidermal connection is absent.⁹ Apocrine hidrocystomas may exhibit complex architecture and papillary ductal hyperplasia that are difficult to distinguish from EMPSGC, especially if EMPSGC presents with cystic morphology. Apocrine cytomorphology and the lack of neuroendocrine marker expression and mucin production distinguish apocrine hidrocystomas. Furthermore, hidrocystomas infrequently demonstrate the nodular, solid, cribriform areas appreciated in EMPSGC.²

Microcystic adnexal carcinoma is a rare, slowly growing, locally aggressive sweat gland tumor that commonly presents as a flesh-colored to yellow papule, nodule, or plaque on the central face.¹⁰ Histopathologic examination reveals both eccrine and follicular differentiation. Keratin cysts, bland keratinocyte cords, and epithelium with ductal differentiation is observed in the superficial layers (Figure 4). Deep invasion into the subcutis and perineural invasion frequently is observed.

The Diagnosis: Endocrine Mucin-Producing Sweat Gland Carcinoma

Endocrine mucin-producing sweat gland carcinoma (EMPSGC) is a rare cutaneous adnexal tumor that characteristically presents as slowgrowing, flesh-colored papules, nodules, or cystic lesions around the periorbital skin in elderly female patients.¹ Histopathology of EMPSGCs reveals well-circumscribed multinodular dermal lesions that can be either cystic or solid and often are arranged in papillary and cribriform patterns (quiz image). Nests of uniform tumor cells are composed of small- to medium-sized epithelial cells with monomorphic nuclei showing fine to stippled chromatin.² Histologically, EMPSGC resembles a solid papillary carcinoma of the breast, which is attributed to their common embryologic origin.³ Intracytoplasmic and extracellular mucin often are seen on hematoxylin and eosin staining.² Variable immunohistochemical stain expression has been reported, including positive staining with synaptophysin and chromogranin. Other markers include cytokeratin CAM 5.2, epithelial membrane antigen, estrogen or progesterone receptors, and cytokeratin 7.⁴ Endocrine mucin-producing sweat gland carcinoma is thought to be a precursor to invasive neuroendocrine-type primary cutaneous mucinous carcinoma. Primary cutaneous mucinous carcinoma has been associated with EMPSGC in approximately 35.7% of cases. Histologically, primary cutaneous mucinous carcinoma that has transformed from EMPSGC would show an infiltration of tumor nests with desmoplastic stroma or mucin pools with clusters of tumor cells.²

Primary cutaneous adenoid cystic carcinoma is a rare malignant tumor that often presents on the head and neck. It usually appears as a single, slowly growing subcutaneous nodule or multinodular plaque.^5,6 Histologic features include basaloid cells in alternating tubular and cribriform patterns. The cribriform areas are composed of pseudoglandular adenoid spaces that contain mucin, basement membrane zone material, and cellular debris from necrotic neoplastic cells (Figure 1).⁷ Primary cutaneous adenoid cystic carcinoma predominantly is dermal with extension to the subcutaneous tissue. True ductal structures that demonstrate decapitation secretion also may be present.⁷

Basal cell carcinoma (adenoid type) presents as a pigmented or nonpigmented nodule or ulcer on sunexposed areas of the head and neck. Histopathology reveals basaloid cells surrounding islands of connective tissue resulting in a lacelike pattern (Figure 2). The lumina may contain a colloidal substance or amorphous granular material.⁸ The characteristic features of basal cell carcinomas, such as nests of basaloid cells with peripheral palisading cells, retraction of adjacent stroma, increased apoptosis and mitotic figures, and connection to the epidermis, can be helpful to distinguish basal cell carcinoma histologically from EMPSGC.²

Apocrine hidrocystomas clinically present as round, flesh-colored, shiny or translucent, dome-shaped papules or nodules near the eyelid margin or lateral canthus.⁹ Histologically, they are composed of proliferating apocrine secretory coils with an epithelial side of cuboidal or columnar cells and a luminal side exhibiting decapitation secretion (Figure 3).² An epidermal connection is absent.⁹ Apocrine hidrocystomas may exhibit complex architecture and papillary ductal hyperplasia that are difficult to distinguish from EMPSGC, especially if EMPSGC presents with cystic morphology. Apocrine cytomorphology and the lack of neuroendocrine marker expression and mucin production distinguish apocrine hidrocystomas. Furthermore, hidrocystomas infrequently demonstrate the nodular, solid, cribriform areas appreciated in EMPSGC.²

Microcystic adnexal carcinoma is a rare, slowly growing, locally aggressive sweat gland tumor that commonly presents as a flesh-colored to yellow papule, nodule, or plaque on the central face.¹⁰ Histopathologic examination reveals both eccrine and follicular differentiation. Keratin cysts, bland keratinocyte cords, and epithelium with ductal differentiation is observed in the superficial layers (Figure 4). Deep invasion into the subcutis and perineural invasion frequently is observed.

The Diagnosis: Endocrine Mucin-Producing Sweat Gland Carcinoma

Endocrine mucin-producing sweat gland carcinoma (EMPSGC) is a rare cutaneous adnexal tumor that characteristically presents as slowgrowing, flesh-colored papules, nodules, or cystic lesions around the periorbital skin in elderly female patients.¹ Histopathology of EMPSGCs reveals well-circumscribed multinodular dermal lesions that can be either cystic or solid and often are arranged in papillary and cribriform patterns (quiz image). Nests of uniform tumor cells are composed of small- to medium-sized epithelial cells with monomorphic nuclei showing fine to stippled chromatin.² Histologically, EMPSGC resembles a solid papillary carcinoma of the breast, which is attributed to their common embryologic origin.³ Intracytoplasmic and extracellular mucin often are seen on hematoxylin and eosin staining.² Variable immunohistochemical stain expression has been reported, including positive staining with synaptophysin and chromogranin. Other markers include cytokeratin CAM 5.2, epithelial membrane antigen, estrogen or progesterone receptors, and cytokeratin 7.⁴ Endocrine mucin-producing sweat gland carcinoma is thought to be a precursor to invasive neuroendocrine-type primary cutaneous mucinous carcinoma. Primary cutaneous mucinous carcinoma has been associated with EMPSGC in approximately 35.7% of cases. Histologically, primary cutaneous mucinous carcinoma that has transformed from EMPSGC would show an infiltration of tumor nests with desmoplastic stroma or mucin pools with clusters of tumor cells.²

Primary cutaneous adenoid cystic carcinoma is a rare malignant tumor that often presents on the head and neck. It usually appears as a single, slowly growing subcutaneous nodule or multinodular plaque.^5,6 Histologic features include basaloid cells in alternating tubular and cribriform patterns. The cribriform areas are composed of pseudoglandular adenoid spaces that contain mucin, basement membrane zone material, and cellular debris from necrotic neoplastic cells (Figure 1).⁷ Primary cutaneous adenoid cystic carcinoma predominantly is dermal with extension to the subcutaneous tissue. True ductal structures that demonstrate decapitation secretion also may be present.⁷

Basal cell carcinoma (adenoid type) presents as a pigmented or nonpigmented nodule or ulcer on sunexposed areas of the head and neck. Histopathology reveals basaloid cells surrounding islands of connective tissue resulting in a lacelike pattern (Figure 2). The lumina may contain a colloidal substance or amorphous granular material.⁸ The characteristic features of basal cell carcinomas, such as nests of basaloid cells with peripheral palisading cells, retraction of adjacent stroma, increased apoptosis and mitotic figures, and connection to the epidermis, can be helpful to distinguish basal cell carcinoma histologically from EMPSGC.²

Apocrine hidrocystomas clinically present as round, flesh-colored, shiny or translucent, dome-shaped papules or nodules near the eyelid margin or lateral canthus.⁹ Histologically, they are composed of proliferating apocrine secretory coils with an epithelial side of cuboidal or columnar cells and a luminal side exhibiting decapitation secretion (Figure 3).² An epidermal connection is absent.⁹ Apocrine hidrocystomas may exhibit complex architecture and papillary ductal hyperplasia that are difficult to distinguish from EMPSGC, especially if EMPSGC presents with cystic morphology. Apocrine cytomorphology and the lack of neuroendocrine marker expression and mucin production distinguish apocrine hidrocystomas. Furthermore, hidrocystomas infrequently demonstrate the nodular, solid, cribriform areas appreciated in EMPSGC.²

Microcystic adnexal carcinoma is a rare, slowly growing, locally aggressive sweat gland tumor that commonly presents as a flesh-colored to yellow papule, nodule, or plaque on the central face.¹⁰ Histopathologic examination reveals both eccrine and follicular differentiation. Keratin cysts, bland keratinocyte cords, and epithelium with ductal differentiation is observed in the superficial layers (Figure 4). Deep invasion into the subcutis and perineural invasion frequently is observed.

The various Camellia species originated in Eastern Asia and are believed to have been introduced in northwestern Spain in the 18th century. Camellia japonica, a flowering evergreen tree with various medical and cosmetic applications, is found throughout Galicia, Spain, where it is cultivated as an ornamental plant, and is native to Japan, South Korea, and China.^1-4 The flowers and seeds of C. japonica have been used in traditional medicine and cosmetics in East Asia, with the oil of C. japonica used there to restore skin elasticity and to enhance skin health.^4-6The identification of bioactive constituents in C. japonica is a relatively recent phenomenon and accounts for the emerging interest in its potential medical applications.^1,7

manuel m. v./flickr/Attribution CC BY 2.0

While the use of C. sinensis in traditional and modern medicine is much better researched, understood, and characterized, C. japonica is now being considered for various health benefits. This column will focus on the bioactivity and scientific support for dermatologic applications of C. japonica. It is worth noting that a dry oil known as tsubaki oil, derived from C. japonica and rich in oleic acid, polyphenols, as well as vitamins A, C, D, and E, is used for skin and hair care in moisturizers produced primarily in Japan.
 

Antioxidant activity

In 2005, Lee and colleagues determined that C. japonica leaf and flower extracts display antioxidant, antifungal, and antibacterial activities (with the latter showing greater gram-positive than gram-negative activity).⁸ Investigating the antioxidant characteristics of the ethanol extract of the C. japonica flower in 2011, Piao and colleagues reported that the botanical exerted scavenging activity against reactive oxygen species in human HaCaT keratinocytes and enhanced protein expression and function of the antioxidant enzymes superoxide dismutase, catalase, and glutathione peroxidase.⁹

Less than a decade later, Yoon and colleagues determined that C. japonica leaf extract contains high concentrations of vitamin E and rutin as well as other active constituents and that it exhibits antioxidant and antihyperuricemic activity in vitro and in vivo.⁴

Since then, Kim and colleagues have demonstrated, using cultured normal human dermal fibroblasts, that C. japonica flower extract effectively hindered urban air pollutants–induced reactive oxygen species synthesis. In ex vivo results, the investigators showed that the botanical agent suppressed matrix metalloproteinase (MMP)-1 expression, fostered collagen production, and decreased levels of pollutants-induced malondialdehyde. The authors concluded that C. japonica flower extract shows promise as a protective agent against pollutant-induced cutaneous damage.¹⁰

Anti-inflammatory and wound-healing activity

In 2012, Kim and colleagues found that C. japonica oil imparts anti-inflammatory activity via down-regulation of iNOS and COX-2 gene expression by suppressing of NF-KB and AP-1 signaling.⁶

Jeon and colleagues determined, in a 2018 investigation of 3,695 native plant extracts, that extracts from C. japonica fruit and stems improved induced pluripotent stem cell (iPSC) generation in mouse and human skin and enhanced wound healing in an in vivo mouse wound model. They suggested that their findings may point toward more effective approaches to developing clinical-grade iPSCs and wound-healing therapies.¹¹

Cosmeceutical potential

Among the important bioactive ingredients present in C. japonica are phenolic compounds, terpenoids, and fatty acids, which are thought to account for the anti-inflammatory, antioxidant, antimicrobial, and anticancer activity associated with the plant.¹ The high concentration of polyphenolic substances, in particular, is thought to at least partly account for the inclusion of C. japonica leaf extracts in antiaging cosmetics and cosmeceuticals.¹² Specifically, some of the antioxidant substances found in C. japonica extracts include quercetin, quercetin-3-O-glucoside, quercitrin, and kaempferol.⁹

Wrinkle reduction and moisturization

In 2007, Jung and colleagues found that C. japonica oil activated collagen 1A2 promotion in human dermal fibroblast cells in a concentration-dependent fashion. The oil also suppressed MMP-1 functions and spurred the production of human type I procollagen. On human skin, C. japonica oil was tested on the upper back of 30 volunteers and failed to provoke any adverse reactions. The oil also diminished transepidermal water loss on the forearm. The researchers concluded that C. japonica oil merits consideration as an antiwrinkle ingredient in topical formulations.¹³

More recently, Choi and colleagues showed that ceramide nanoparticles developed through the use of natural oils derived from Korean traditional plants (including C. japonica, along with Panax ginseng, C. sinensis, Glycine max napjakong, and Glycine max seoritae) improve skin carrier functions and promote gene expressions needed for epidermal homeostasis. The expressions of the FLG, CASP14, and INV genes were notably enhanced by the tested formulation. The researchers observed from in vivo human studies that the application of the ceramide nanoparticles yielded more rapid recovery in impaired skin barriers than the control formulation. Amelioration of stratum corneum cohesion was also noted. The investigators concluded that this and other natural oil–derived ceramide nanoparticle formulations may represent the potential for developing better moisturizers for enhancing skin barrier function.¹⁴

Hair-growth promotion and skin-whitening activity

Early in 2021, Cho and colleagues demonstrated that C. japonica phytoplacenta extract spurred the up-regulation of the expression of hair growth–marker genes in human follicle dermal papilla cells in vitro. In clinical tests with 42 adult female volunteers, a solution with 0.5% C. japonica placenta extract raised moisture content of the scalp and reduced sebum levels, dead scalp keratin, and redness. The researchers concluded that C. japonica phytoplacenta extract displays promise as a scalp treatment and hair growth–promoting agent.²

Later that year, Ha and colleagues reported on their findings regarding the tyrosinase inhibitory activity of the essential oil of C. japonica seeds. They identified hexamethylcyclotrisiloxane (42.36%) and octamethylcyclotetrasiloxane (23.28%) as the main constituents of the oil, which demonstrated comparable inhibitory activity to arbutin (positive control) against mushroom tyrosinase. Melanogenesis was also significantly suppressed by C. japonica seed essential oil in B16F10 melanoma cells. The investigators concluded that the essential oil of C. japonica seeds exhibits robust antityrosinase activity and, therefore, warrants consideration as a skin-whitening agent.¹⁵
 

Conclusion

C. japonica is not as popular or well researched as another Camellia species, C. sinensis (the primary tea plant consumed globally and highly touted and appreciated for its multitude of health benefits), but it has its own history of traditional uses for medical and cosmetic purposes and is a subject of increasing research interest along with popular applications. Its antioxidant and anti-inflammatory properties are thought to be central in conferring the ability to protect the skin from aging. Its effects on the skin barrier help skin hydration. More research is necessary to elucidate the apparently widespread potential of this botanical agent that is already found in some over-the-counter products.

Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur in Miami. She founded the division of cosmetic dermatology at the University of Miami in 1997. The third edition of her bestselling textbook, “Cosmetic Dermatology,” was published in 2022. Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Galderma, Johnson & Johnson, and Burt’s Bees. She is the CEO of Skin Type Solutions, a SaaS company used to generate skin care routines in office and as an ecommerce solution. Write to her at [email protected].

References

1. Pereira AG et al. Food Chem X. 2022 Feb 17;13:100258.

2. Cho WK et al. FEBS Open Bio. 2021 Mar;11(3):633-51.

3. Chung MY et al. Evolution. 2003 Jan;57(1):62-73.

4. Yoon IS et al. Int J Mol Med. 2017 Jun;39(6):1613-20.

5. Lee HH et al. Evid Based Complement Alternat Med. 2016;2016:9679867.

6. Kim S et al. BMB Rep. 2012 Mar;45(3):177-82.

7. Majumder S et al. Bull Nat Res Cen. 2020 Dec;44(1):1-4.

8. Lee SY et al. Korean Journal of Medicinal Crop Science. 2005;13(3):93-100.

9. Piao MJ et al. Int J Mol Sci. 2011;12(4):2618-30.

10. Kim M et al. BMC Complement Altern Med. 2019 Jan 28;19(1):30.

11. Jeon H et al. J Clin Med. 2018 Nov 20;7(11):449.

12. Mizutani T, Masaki H. Exp Dermatol. 2014 Oct;23 Suppl 1:23-6.

13. Jung E et al. J Ethnopharmacol. 2007 May 30;112(1):127-31.

14. Choi HK et al. J Cosmet Dermatol. 2022 Oct;21(10):4931-41.

15. Ha SY et al. Evid Based Complement Alternat Med. 2021 Nov 16;2021:6328767.

The various Camellia species originated in Eastern Asia and are believed to have been introduced in northwestern Spain in the 18th century. Camellia japonica, a flowering evergreen tree with various medical and cosmetic applications, is found throughout Galicia, Spain, where it is cultivated as an ornamental plant, and is native to Japan, South Korea, and China.^1-4 The flowers and seeds of C. japonica have been used in traditional medicine and cosmetics in East Asia, with the oil of C. japonica used there to restore skin elasticity and to enhance skin health.^4-6The identification of bioactive constituents in C. japonica is a relatively recent phenomenon and accounts for the emerging interest in its potential medical applications.^1,7

manuel m. v./flickr/Attribution CC BY 2.0

While the use of C. sinensis in traditional and modern medicine is much better researched, understood, and characterized, C. japonica is now being considered for various health benefits. This column will focus on the bioactivity and scientific support for dermatologic applications of C. japonica. It is worth noting that a dry oil known as tsubaki oil, derived from C. japonica and rich in oleic acid, polyphenols, as well as vitamins A, C, D, and E, is used for skin and hair care in moisturizers produced primarily in Japan.
 

Antioxidant activity

In 2005, Lee and colleagues determined that C. japonica leaf and flower extracts display antioxidant, antifungal, and antibacterial activities (with the latter showing greater gram-positive than gram-negative activity).⁸ Investigating the antioxidant characteristics of the ethanol extract of the C. japonica flower in 2011, Piao and colleagues reported that the botanical exerted scavenging activity against reactive oxygen species in human HaCaT keratinocytes and enhanced protein expression and function of the antioxidant enzymes superoxide dismutase, catalase, and glutathione peroxidase.⁹

Less than a decade later, Yoon and colleagues determined that C. japonica leaf extract contains high concentrations of vitamin E and rutin as well as other active constituents and that it exhibits antioxidant and antihyperuricemic activity in vitro and in vivo.⁴

Since then, Kim and colleagues have demonstrated, using cultured normal human dermal fibroblasts, that C. japonica flower extract effectively hindered urban air pollutants–induced reactive oxygen species synthesis. In ex vivo results, the investigators showed that the botanical agent suppressed matrix metalloproteinase (MMP)-1 expression, fostered collagen production, and decreased levels of pollutants-induced malondialdehyde. The authors concluded that C. japonica flower extract shows promise as a protective agent against pollutant-induced cutaneous damage.¹⁰

Anti-inflammatory and wound-healing activity

In 2012, Kim and colleagues found that C. japonica oil imparts anti-inflammatory activity via down-regulation of iNOS and COX-2 gene expression by suppressing of NF-KB and AP-1 signaling.⁶

Jeon and colleagues determined, in a 2018 investigation of 3,695 native plant extracts, that extracts from C. japonica fruit and stems improved induced pluripotent stem cell (iPSC) generation in mouse and human skin and enhanced wound healing in an in vivo mouse wound model. They suggested that their findings may point toward more effective approaches to developing clinical-grade iPSCs and wound-healing therapies.¹¹

Cosmeceutical potential

Among the important bioactive ingredients present in C. japonica are phenolic compounds, terpenoids, and fatty acids, which are thought to account for the anti-inflammatory, antioxidant, antimicrobial, and anticancer activity associated with the plant.¹ The high concentration of polyphenolic substances, in particular, is thought to at least partly account for the inclusion of C. japonica leaf extracts in antiaging cosmetics and cosmeceuticals.¹² Specifically, some of the antioxidant substances found in C. japonica extracts include quercetin, quercetin-3-O-glucoside, quercitrin, and kaempferol.⁹

Wrinkle reduction and moisturization

In 2007, Jung and colleagues found that C. japonica oil activated collagen 1A2 promotion in human dermal fibroblast cells in a concentration-dependent fashion. The oil also suppressed MMP-1 functions and spurred the production of human type I procollagen. On human skin, C. japonica oil was tested on the upper back of 30 volunteers and failed to provoke any adverse reactions. The oil also diminished transepidermal water loss on the forearm. The researchers concluded that C. japonica oil merits consideration as an antiwrinkle ingredient in topical formulations.¹³

More recently, Choi and colleagues showed that ceramide nanoparticles developed through the use of natural oils derived from Korean traditional plants (including C. japonica, along with Panax ginseng, C. sinensis, Glycine max napjakong, and Glycine max seoritae) improve skin carrier functions and promote gene expressions needed for epidermal homeostasis. The expressions of the FLG, CASP14, and INV genes were notably enhanced by the tested formulation. The researchers observed from in vivo human studies that the application of the ceramide nanoparticles yielded more rapid recovery in impaired skin barriers than the control formulation. Amelioration of stratum corneum cohesion was also noted. The investigators concluded that this and other natural oil–derived ceramide nanoparticle formulations may represent the potential for developing better moisturizers for enhancing skin barrier function.¹⁴

Hair-growth promotion and skin-whitening activity

Early in 2021, Cho and colleagues demonstrated that C. japonica phytoplacenta extract spurred the up-regulation of the expression of hair growth–marker genes in human follicle dermal papilla cells in vitro. In clinical tests with 42 adult female volunteers, a solution with 0.5% C. japonica placenta extract raised moisture content of the scalp and reduced sebum levels, dead scalp keratin, and redness. The researchers concluded that C. japonica phytoplacenta extract displays promise as a scalp treatment and hair growth–promoting agent.²

Later that year, Ha and colleagues reported on their findings regarding the tyrosinase inhibitory activity of the essential oil of C. japonica seeds. They identified hexamethylcyclotrisiloxane (42.36%) and octamethylcyclotetrasiloxane (23.28%) as the main constituents of the oil, which demonstrated comparable inhibitory activity to arbutin (positive control) against mushroom tyrosinase. Melanogenesis was also significantly suppressed by C. japonica seed essential oil in B16F10 melanoma cells. The investigators concluded that the essential oil of C. japonica seeds exhibits robust antityrosinase activity and, therefore, warrants consideration as a skin-whitening agent.¹⁵
 

Conclusion

C. japonica is not as popular or well researched as another Camellia species, C. sinensis (the primary tea plant consumed globally and highly touted and appreciated for its multitude of health benefits), but it has its own history of traditional uses for medical and cosmetic purposes and is a subject of increasing research interest along with popular applications. Its antioxidant and anti-inflammatory properties are thought to be central in conferring the ability to protect the skin from aging. Its effects on the skin barrier help skin hydration. More research is necessary to elucidate the apparently widespread potential of this botanical agent that is already found in some over-the-counter products.

Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur in Miami. She founded the division of cosmetic dermatology at the University of Miami in 1997. The third edition of her bestselling textbook, “Cosmetic Dermatology,” was published in 2022. Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Galderma, Johnson & Johnson, and Burt’s Bees. She is the CEO of Skin Type Solutions, a SaaS company used to generate skin care routines in office and as an ecommerce solution. Write to her at [email protected].

References

1. Pereira AG et al. Food Chem X. 2022 Feb 17;13:100258.

2. Cho WK et al. FEBS Open Bio. 2021 Mar;11(3):633-51.

3. Chung MY et al. Evolution. 2003 Jan;57(1):62-73.

4. Yoon IS et al. Int J Mol Med. 2017 Jun;39(6):1613-20.

5. Lee HH et al. Evid Based Complement Alternat Med. 2016;2016:9679867.

6. Kim S et al. BMB Rep. 2012 Mar;45(3):177-82.

7. Majumder S et al. Bull Nat Res Cen. 2020 Dec;44(1):1-4.

8. Lee SY et al. Korean Journal of Medicinal Crop Science. 2005;13(3):93-100.

9. Piao MJ et al. Int J Mol Sci. 2011;12(4):2618-30.

10. Kim M et al. BMC Complement Altern Med. 2019 Jan 28;19(1):30.

11. Jeon H et al. J Clin Med. 2018 Nov 20;7(11):449.

12. Mizutani T, Masaki H. Exp Dermatol. 2014 Oct;23 Suppl 1:23-6.

13. Jung E et al. J Ethnopharmacol. 2007 May 30;112(1):127-31.

14. Choi HK et al. J Cosmet Dermatol. 2022 Oct;21(10):4931-41.

15. Ha SY et al. Evid Based Complement Alternat Med. 2021 Nov 16;2021:6328767.

The various Camellia species originated in Eastern Asia and are believed to have been introduced in northwestern Spain in the 18th century. Camellia japonica, a flowering evergreen tree with various medical and cosmetic applications, is found throughout Galicia, Spain, where it is cultivated as an ornamental plant, and is native to Japan, South Korea, and China.^1-4 The flowers and seeds of C. japonica have been used in traditional medicine and cosmetics in East Asia, with the oil of C. japonica used there to restore skin elasticity and to enhance skin health.^4-6The identification of bioactive constituents in C. japonica is a relatively recent phenomenon and accounts for the emerging interest in its potential medical applications.^1,7

manuel m. v./flickr/Attribution CC BY 2.0

While the use of C. sinensis in traditional and modern medicine is much better researched, understood, and characterized, C. japonica is now being considered for various health benefits. This column will focus on the bioactivity and scientific support for dermatologic applications of C. japonica. It is worth noting that a dry oil known as tsubaki oil, derived from C. japonica and rich in oleic acid, polyphenols, as well as vitamins A, C, D, and E, is used for skin and hair care in moisturizers produced primarily in Japan.
 

Antioxidant activity

In 2005, Lee and colleagues determined that C. japonica leaf and flower extracts display antioxidant, antifungal, and antibacterial activities (with the latter showing greater gram-positive than gram-negative activity).⁸ Investigating the antioxidant characteristics of the ethanol extract of the C. japonica flower in 2011, Piao and colleagues reported that the botanical exerted scavenging activity against reactive oxygen species in human HaCaT keratinocytes and enhanced protein expression and function of the antioxidant enzymes superoxide dismutase, catalase, and glutathione peroxidase.⁹

Less than a decade later, Yoon and colleagues determined that C. japonica leaf extract contains high concentrations of vitamin E and rutin as well as other active constituents and that it exhibits antioxidant and antihyperuricemic activity in vitro and in vivo.⁴

Since then, Kim and colleagues have demonstrated, using cultured normal human dermal fibroblasts, that C. japonica flower extract effectively hindered urban air pollutants–induced reactive oxygen species synthesis. In ex vivo results, the investigators showed that the botanical agent suppressed matrix metalloproteinase (MMP)-1 expression, fostered collagen production, and decreased levels of pollutants-induced malondialdehyde. The authors concluded that C. japonica flower extract shows promise as a protective agent against pollutant-induced cutaneous damage.¹⁰

Anti-inflammatory and wound-healing activity

In 2012, Kim and colleagues found that C. japonica oil imparts anti-inflammatory activity via down-regulation of iNOS and COX-2 gene expression by suppressing of NF-KB and AP-1 signaling.⁶

Jeon and colleagues determined, in a 2018 investigation of 3,695 native plant extracts, that extracts from C. japonica fruit and stems improved induced pluripotent stem cell (iPSC) generation in mouse and human skin and enhanced wound healing in an in vivo mouse wound model. They suggested that their findings may point toward more effective approaches to developing clinical-grade iPSCs and wound-healing therapies.¹¹

Cosmeceutical potential

Among the important bioactive ingredients present in C. japonica are phenolic compounds, terpenoids, and fatty acids, which are thought to account for the anti-inflammatory, antioxidant, antimicrobial, and anticancer activity associated with the plant.¹ The high concentration of polyphenolic substances, in particular, is thought to at least partly account for the inclusion of C. japonica leaf extracts in antiaging cosmetics and cosmeceuticals.¹² Specifically, some of the antioxidant substances found in C. japonica extracts include quercetin, quercetin-3-O-glucoside, quercitrin, and kaempferol.⁹

Wrinkle reduction and moisturization

In 2007, Jung and colleagues found that C. japonica oil activated collagen 1A2 promotion in human dermal fibroblast cells in a concentration-dependent fashion. The oil also suppressed MMP-1 functions and spurred the production of human type I procollagen. On human skin, C. japonica oil was tested on the upper back of 30 volunteers and failed to provoke any adverse reactions. The oil also diminished transepidermal water loss on the forearm. The researchers concluded that C. japonica oil merits consideration as an antiwrinkle ingredient in topical formulations.¹³

More recently, Choi and colleagues showed that ceramide nanoparticles developed through the use of natural oils derived from Korean traditional plants (including C. japonica, along with Panax ginseng, C. sinensis, Glycine max napjakong, and Glycine max seoritae) improve skin carrier functions and promote gene expressions needed for epidermal homeostasis. The expressions of the FLG, CASP14, and INV genes were notably enhanced by the tested formulation. The researchers observed from in vivo human studies that the application of the ceramide nanoparticles yielded more rapid recovery in impaired skin barriers than the control formulation. Amelioration of stratum corneum cohesion was also noted. The investigators concluded that this and other natural oil–derived ceramide nanoparticle formulations may represent the potential for developing better moisturizers for enhancing skin barrier function.¹⁴

Hair-growth promotion and skin-whitening activity

Early in 2021, Cho and colleagues demonstrated that C. japonica phytoplacenta extract spurred the up-regulation of the expression of hair growth–marker genes in human follicle dermal papilla cells in vitro. In clinical tests with 42 adult female volunteers, a solution with 0.5% C. japonica placenta extract raised moisture content of the scalp and reduced sebum levels, dead scalp keratin, and redness. The researchers concluded that C. japonica phytoplacenta extract displays promise as a scalp treatment and hair growth–promoting agent.²

Later that year, Ha and colleagues reported on their findings regarding the tyrosinase inhibitory activity of the essential oil of C. japonica seeds. They identified hexamethylcyclotrisiloxane (42.36%) and octamethylcyclotetrasiloxane (23.28%) as the main constituents of the oil, which demonstrated comparable inhibitory activity to arbutin (positive control) against mushroom tyrosinase. Melanogenesis was also significantly suppressed by C. japonica seed essential oil in B16F10 melanoma cells. The investigators concluded that the essential oil of C. japonica seeds exhibits robust antityrosinase activity and, therefore, warrants consideration as a skin-whitening agent.¹⁵
 

Conclusion

C. japonica is not as popular or well researched as another Camellia species, C. sinensis (the primary tea plant consumed globally and highly touted and appreciated for its multitude of health benefits), but it has its own history of traditional uses for medical and cosmetic purposes and is a subject of increasing research interest along with popular applications. Its antioxidant and anti-inflammatory properties are thought to be central in conferring the ability to protect the skin from aging. Its effects on the skin barrier help skin hydration. More research is necessary to elucidate the apparently widespread potential of this botanical agent that is already found in some over-the-counter products.

Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur in Miami. She founded the division of cosmetic dermatology at the University of Miami in 1997. The third edition of her bestselling textbook, “Cosmetic Dermatology,” was published in 2022. Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Galderma, Johnson & Johnson, and Burt’s Bees. She is the CEO of Skin Type Solutions, a SaaS company used to generate skin care routines in office and as an ecommerce solution. Write to her at [email protected].

References

1. Pereira AG et al. Food Chem X. 2022 Feb 17;13:100258.

2. Cho WK et al. FEBS Open Bio. 2021 Mar;11(3):633-51.

3. Chung MY et al. Evolution. 2003 Jan;57(1):62-73.

4. Yoon IS et al. Int J Mol Med. 2017 Jun;39(6):1613-20.

5. Lee HH et al. Evid Based Complement Alternat Med. 2016;2016:9679867.

6. Kim S et al. BMB Rep. 2012 Mar;45(3):177-82.

7. Majumder S et al. Bull Nat Res Cen. 2020 Dec;44(1):1-4.

8. Lee SY et al. Korean Journal of Medicinal Crop Science. 2005;13(3):93-100.

9. Piao MJ et al. Int J Mol Sci. 2011;12(4):2618-30.

10. Kim M et al. BMC Complement Altern Med. 2019 Jan 28;19(1):30.

11. Jeon H et al. J Clin Med. 2018 Nov 20;7(11):449.

12. Mizutani T, Masaki H. Exp Dermatol. 2014 Oct;23 Suppl 1:23-6.

13. Jung E et al. J Ethnopharmacol. 2007 May 30;112(1):127-31.

14. Choi HK et al. J Cosmet Dermatol. 2022 Oct;21(10):4931-41.

15. Ha SY et al. Evid Based Complement Alternat Med. 2021 Nov 16;2021:6328767.

Childhood stress can change the brain negatively, according to a new study that says Black children are affected more because they experience more poverty and adversity.

“The researchers analyzed MRI scans to identify small differences in the volume of certain brain structures, and said these could accumulate as children age and play a role in the later development of mental health problems,” STAT News reported. “The finding, part of an emerging research field looking at how racism and other social factors may affect the physical architecture of the brain, may help explain longstanding racial disparities in the prevalence of psychiatric disorders such as PTSD.”

The study was published in The American Journal of Psychiatry.

Brain development is affected by “disparities faced by certain groups of people,” even among children as young as 9 years old, said Nathaniel Harnett, an assistant professor of psychiatry at Harvard Medical School, Boston, and the study’s senior author. “If we’re going to treat the world as colorblind, we’re not going to create mental health solutions that are effective for all people.”

The study used evidence from the Adolescent Brain Cognitive Development Study, which the National Institutes of Health established in 2015 to study the brains and experiences of thousands of American children through early adulthood.

Brain scans revealed that Black children had less gray matter in 11 of 14 brain areas that were examined. Disparities in 8 of the 14 brain areas were affected by childhood adversity, particularly poverty.

A version of this article first appeared on WebMD.com.

Childhood stress can change the brain negatively, according to a new study that says Black children are affected more because they experience more poverty and adversity.

“The researchers analyzed MRI scans to identify small differences in the volume of certain brain structures, and said these could accumulate as children age and play a role in the later development of mental health problems,” STAT News reported. “The finding, part of an emerging research field looking at how racism and other social factors may affect the physical architecture of the brain, may help explain longstanding racial disparities in the prevalence of psychiatric disorders such as PTSD.”

The study was published in The American Journal of Psychiatry.

Brain development is affected by “disparities faced by certain groups of people,” even among children as young as 9 years old, said Nathaniel Harnett, an assistant professor of psychiatry at Harvard Medical School, Boston, and the study’s senior author. “If we’re going to treat the world as colorblind, we’re not going to create mental health solutions that are effective for all people.”

The study used evidence from the Adolescent Brain Cognitive Development Study, which the National Institutes of Health established in 2015 to study the brains and experiences of thousands of American children through early adulthood.

Brain scans revealed that Black children had less gray matter in 11 of 14 brain areas that were examined. Disparities in 8 of the 14 brain areas were affected by childhood adversity, particularly poverty.

A version of this article first appeared on WebMD.com.

Childhood stress can change the brain negatively, according to a new study that says Black children are affected more because they experience more poverty and adversity.

“The researchers analyzed MRI scans to identify small differences in the volume of certain brain structures, and said these could accumulate as children age and play a role in the later development of mental health problems,” STAT News reported. “The finding, part of an emerging research field looking at how racism and other social factors may affect the physical architecture of the brain, may help explain longstanding racial disparities in the prevalence of psychiatric disorders such as PTSD.”

The study was published in The American Journal of Psychiatry.

Brain development is affected by “disparities faced by certain groups of people,” even among children as young as 9 years old, said Nathaniel Harnett, an assistant professor of psychiatry at Harvard Medical School, Boston, and the study’s senior author. “If we’re going to treat the world as colorblind, we’re not going to create mental health solutions that are effective for all people.”

The study used evidence from the Adolescent Brain Cognitive Development Study, which the National Institutes of Health established in 2015 to study the brains and experiences of thousands of American children through early adulthood.

Brain scans revealed that Black children had less gray matter in 11 of 14 brain areas that were examined. Disparities in 8 of the 14 brain areas were affected by childhood adversity, particularly poverty.

A version of this article first appeared on WebMD.com.

People with untreatable dystrophic epidermolysis bullosa (DEB) may soon have access to an investigational gene therapy delivered in a topical gel that is currently under review by the Food and Drug Administration.

In a phase 3 study of patients with DEB, “we found that repeated topical application of B-VEC [beremagene geperpavec], an HSV-1–based gene therapy, resulted in a greater likelihood of complete wound healing than the topical application of placebo at up to 6 months,” the authors wrote. The study was published in The New England Journal of Medicine. “Longer and larger trials are warranted to determine the durability of effect and risks of this approach,” the authors noted.

“The results prove that B-VEC, the first topical in vivo gene therapy to reach late-stage development, can heal DEB,” senior author M. Peter Marinkovich, MD, associate professor of dermatology at Stanford University, Redwood City, Calif., said in an interview.

“In the past, DEB was a very specialized disease that only a handful of dermatologists would see but could not do much to treat,” he said. “With gene therapy, many more dermatologists who may not be familiar with DEB will be able to treat these patients in their offices.” It is expected that nurses will be able to administer the treatment to patients at home, he added.
 

Rare, life-threatening, genetic blistering disease

DEB, a rare disease that affects one to three persons per million in the United States, is caused by mutations in the COL7A1 gene that encodes the alpha-1 chain of collagen type VII (C7) protein. C7 forms the anchoring fibrils that attach the epidermis to the underlying dermal connective tissue.

COL71A mutations that lead to defective, decreased, or absent C7 can make the skin so fragile it tears with the slightest touch. This has led to patients being called “butterfly children.” Epithelial tissues blister and scar, causing esophageal and genitourinary strictures, adhesion of digits, malnutrition, anemia, infection, and bothersome itch and pain. Morbidity and mortality are high. The leading cause of death in adults is chronic wounds leading to aggressive squamous cell cancers.
 

The first therapy for DEB, under FDA review

B-VEC restores C7 protein by using an engineered replication-defective herpes simplex virus type 1 (HSV-1) vector to deliver the COL7A1 gene directly to skin cells to restore functional C7 protein fibrils that stabilize the skin structure.

On the basis of manufacturing information submitted to the FDA in December 2022, the agency extended the date for a decision on approval by 3 months, to May 19, 2023, according to a statement from Krystal Biotech, the developer of B-VEC and the sponsor of the NEJM study.

Dr. Marinkovich and his colleagues conducted the double-blind, randomized, controlled GEM-3 trial of B-VEC at three sites in the United States. The 31 study participants ranged in age from 1 to 44 years (median age, 16 years) and had genetically confirmed DEB (30 with the recessive form and 1 with the dominant form).

For each participant, a pair of wounds was chosen that were matched in size, region, and appearance. The wounds within each pair were randomly allocated to receive weekly applications of either B-VEC or placebo gel for 26 weeks.

The results of the study included the following:

• Complete healing at 6 months occurred in 67% of the wounds treated with B-VEC (including a wound in the patient with dominant DEB), vs. 22% of those who received placebo (95% confidence interval [CI], 24-68; P = .002).
• Complete healing at 3 months occurred in 71% of the wounds treated with B-VEC, vs. 20% of those who received placebo (95% CI, 29-73; P < .001).
• The mean change from baseline to week 22 in pain severity during wound-dressing changes for patients aged 6 years and older, as determined on the basis of a visual analogue scale, was –0.88 with B-VEC, vs. –0.71 with placebo (adjusted least-squares mean difference, –0.61; 95% CI, –1.10 to –0.13); similar mean changes were seen at weeks 24 and 26.
• Among all patients, 58% had at least one adverse event. Most adverse events were mild or moderate. The most common were pruritus, chills, and squamous cell carcinoma (SCC), which were reported in three patients each (SCC cases occurred at wound sites that had not been exposed to B-VEC or placebo). Serious adverse events, which were unrelated to the treatment, occurred in three patients: diarrhea, anemia, cellulitis, and a positive blood culture related to a hemodialysis catheter.

“With the ability to treat patients with topical gene therapy, dermatology is entering a new age of treatment possibilities,” Dr. Marinkovich said in the interview.

The researchers were surprised that the redosable in vivo gene therapy worked so well, he added. In vivo gene therapy has been plagued by the occurrence of immune reactions against the viral vectors used, Dr. Marinkovich explained. But because the herpes simplex virus has evolved to evade the immune system, his team could use the viral vector every week for 6 months without inflammatory reactions.

“The immune system’s inability to fight off or get rid of the herpes simplex vector makes it bad as a disease, but as a gene therapy vector, it provides a huge advantage,” he added.

Asked to comment on the results, Christen Ebens, MD, MPH, assistant professor in the department of pediatrics at the University of Minnesota, Minneapolis, whose clinical and research interests include EB, called the results exciting for patients, families, and doctors.

“Side effects were minimal, and importantly, use of the replication-incompetent HSV vector means that the payload gene does not integrate into the patient’s DNA,” Dr. Ebens, who was not involved in the study, said in an interview. “B-VEC is not a lifelong cure but potentially an effective maintenance therapy requiring repeated doses,” she added.

Although the researchers found no clinically important immune reactions to B-VEC, Dr. Ebens said she would like to see results from longer studies of the treatment. “We will want to see that patients do not produce neutralizing antibodies against B-VEC or its components, as such antibodies may yield the treatment ineffective or cause significant side effects.”

In an interview, Vanessa R. Holland, MD, associate clinical professor in the division of dermatology at UCLA Health, Burbank, Calif., who was not involved in the study, said that “topical replication-defective HSV-1 is a brilliant vector to deliver the depleted collagen.” She added that “such a vehicle may significantly alter management of these disorders and improve or extend lives by minimizing potentially fatal complications.”

Paras P. Vakharia, MD, PharmD, assistant professor of dermatology at Northwestern University, Chicago, who was not involved in the study, was surprised by the high percentage of healed wounds and wounds that remained healed over time.

B-VEC for treating other conditions

Dr. Marinkovich noted that an ongoing phase 1 clinical trial, also sponsored by Krystal Biotech, is using the HSV-1 vector to deliver a different biologic (KB105) to establish dose and safety in the treatment of ichthyosis. He added that he would like to explore the use of B-VEC to treat DEB at mucosal surfaces, including inside the mouth, the eye, and the esophagus.

Authors of two editorials that accompanied the study also referred to other conditions B-VEC might treat.

This study “highlights potential future investigations,” David V. Schaffer, PhD, professor of chemical and biomolecular engineering, bioengineering, and molecular and cell biology at the University of California, Berkeley, wrotes in one of the editorials.

Important considerations he mentioned include the likelihood of the treatment becoming lifelong; the inability of HSV to penetrate intact skin, making B-VEC unsuitable for preventing the development of new wounds; and the inability of this treatment to treat EB lesions along the digestive tract. “This important trial builds on and extends gene-therapy successes to new targets and vectors, an advance for patients,” he added.

In the second editorial, Aimee S. Payne, MD, PhD, professor of dermatology at the University of Pennsylvania, Philadelphia, raised the question of whether B-VEC’s clinical success for treating DEB can translate to other genetic diseases.

“Formulations for ophthalmic, oral-gastrointestinal, or respiratory delivery would be of great value to address the extracutaneous manifestations of epidermolysis bullosa and other genetic diseases,” she wrote.

Referring to an ongoing trial of a topical gene therapy for cystic fibrosis that is delivered by a nebulizer, Dr. Payne noted, “Ultimately, the completion of clinical trials such as this one will be required to determine whether HSV-1–mediated gene delivery can go more than skin deep.”

Earlier data and more details of the study were presented in a poster at the annual meeting of the Society for Pediatric Dermatology in July 2022.

Dr. Marinkovich has disclosed no relevant financial relationships. Several coauthors are employees of or have other financial relationships with Krystal Biotech, the study’s sponsor and the developer of beremagene geperpavec. Dr. Schaffer and Dr. Payne have financial relationships with the pharmaceutical industry. Dr. Ebens, Dr. Holland, and Dr. Vakharia have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

People with untreatable dystrophic epidermolysis bullosa (DEB) may soon have access to an investigational gene therapy delivered in a topical gel that is currently under review by the Food and Drug Administration.

In a phase 3 study of patients with DEB, “we found that repeated topical application of B-VEC [beremagene geperpavec], an HSV-1–based gene therapy, resulted in a greater likelihood of complete wound healing than the topical application of placebo at up to 6 months,” the authors wrote. The study was published in The New England Journal of Medicine. “Longer and larger trials are warranted to determine the durability of effect and risks of this approach,” the authors noted.

“The results prove that B-VEC, the first topical in vivo gene therapy to reach late-stage development, can heal DEB,” senior author M. Peter Marinkovich, MD, associate professor of dermatology at Stanford University, Redwood City, Calif., said in an interview.

“In the past, DEB was a very specialized disease that only a handful of dermatologists would see but could not do much to treat,” he said. “With gene therapy, many more dermatologists who may not be familiar with DEB will be able to treat these patients in their offices.” It is expected that nurses will be able to administer the treatment to patients at home, he added.
 

Rare, life-threatening, genetic blistering disease

DEB, a rare disease that affects one to three persons per million in the United States, is caused by mutations in the COL7A1 gene that encodes the alpha-1 chain of collagen type VII (C7) protein. C7 forms the anchoring fibrils that attach the epidermis to the underlying dermal connective tissue.

COL71A mutations that lead to defective, decreased, or absent C7 can make the skin so fragile it tears with the slightest touch. This has led to patients being called “butterfly children.” Epithelial tissues blister and scar, causing esophageal and genitourinary strictures, adhesion of digits, malnutrition, anemia, infection, and bothersome itch and pain. Morbidity and mortality are high. The leading cause of death in adults is chronic wounds leading to aggressive squamous cell cancers.
 

The first therapy for DEB, under FDA review

B-VEC restores C7 protein by using an engineered replication-defective herpes simplex virus type 1 (HSV-1) vector to deliver the COL7A1 gene directly to skin cells to restore functional C7 protein fibrils that stabilize the skin structure.

On the basis of manufacturing information submitted to the FDA in December 2022, the agency extended the date for a decision on approval by 3 months, to May 19, 2023, according to a statement from Krystal Biotech, the developer of B-VEC and the sponsor of the NEJM study.

Dr. Marinkovich and his colleagues conducted the double-blind, randomized, controlled GEM-3 trial of B-VEC at three sites in the United States. The 31 study participants ranged in age from 1 to 44 years (median age, 16 years) and had genetically confirmed DEB (30 with the recessive form and 1 with the dominant form).

For each participant, a pair of wounds was chosen that were matched in size, region, and appearance. The wounds within each pair were randomly allocated to receive weekly applications of either B-VEC or placebo gel for 26 weeks.

The results of the study included the following:

• Complete healing at 6 months occurred in 67% of the wounds treated with B-VEC (including a wound in the patient with dominant DEB), vs. 22% of those who received placebo (95% confidence interval [CI], 24-68; P = .002).
• Complete healing at 3 months occurred in 71% of the wounds treated with B-VEC, vs. 20% of those who received placebo (95% CI, 29-73; P < .001).
• The mean change from baseline to week 22 in pain severity during wound-dressing changes for patients aged 6 years and older, as determined on the basis of a visual analogue scale, was –0.88 with B-VEC, vs. –0.71 with placebo (adjusted least-squares mean difference, –0.61; 95% CI, –1.10 to –0.13); similar mean changes were seen at weeks 24 and 26.
• Among all patients, 58% had at least one adverse event. Most adverse events were mild or moderate. The most common were pruritus, chills, and squamous cell carcinoma (SCC), which were reported in three patients each (SCC cases occurred at wound sites that had not been exposed to B-VEC or placebo). Serious adverse events, which were unrelated to the treatment, occurred in three patients: diarrhea, anemia, cellulitis, and a positive blood culture related to a hemodialysis catheter.

“With the ability to treat patients with topical gene therapy, dermatology is entering a new age of treatment possibilities,” Dr. Marinkovich said in the interview.

The researchers were surprised that the redosable in vivo gene therapy worked so well, he added. In vivo gene therapy has been plagued by the occurrence of immune reactions against the viral vectors used, Dr. Marinkovich explained. But because the herpes simplex virus has evolved to evade the immune system, his team could use the viral vector every week for 6 months without inflammatory reactions.

“The immune system’s inability to fight off or get rid of the herpes simplex vector makes it bad as a disease, but as a gene therapy vector, it provides a huge advantage,” he added.

Asked to comment on the results, Christen Ebens, MD, MPH, assistant professor in the department of pediatrics at the University of Minnesota, Minneapolis, whose clinical and research interests include EB, called the results exciting for patients, families, and doctors.

“Side effects were minimal, and importantly, use of the replication-incompetent HSV vector means that the payload gene does not integrate into the patient’s DNA,” Dr. Ebens, who was not involved in the study, said in an interview. “B-VEC is not a lifelong cure but potentially an effective maintenance therapy requiring repeated doses,” she added.

Although the researchers found no clinically important immune reactions to B-VEC, Dr. Ebens said she would like to see results from longer studies of the treatment. “We will want to see that patients do not produce neutralizing antibodies against B-VEC or its components, as such antibodies may yield the treatment ineffective or cause significant side effects.”

In an interview, Vanessa R. Holland, MD, associate clinical professor in the division of dermatology at UCLA Health, Burbank, Calif., who was not involved in the study, said that “topical replication-defective HSV-1 is a brilliant vector to deliver the depleted collagen.” She added that “such a vehicle may significantly alter management of these disorders and improve or extend lives by minimizing potentially fatal complications.”

Paras P. Vakharia, MD, PharmD, assistant professor of dermatology at Northwestern University, Chicago, who was not involved in the study, was surprised by the high percentage of healed wounds and wounds that remained healed over time.

B-VEC for treating other conditions

Dr. Marinkovich noted that an ongoing phase 1 clinical trial, also sponsored by Krystal Biotech, is using the HSV-1 vector to deliver a different biologic (KB105) to establish dose and safety in the treatment of ichthyosis. He added that he would like to explore the use of B-VEC to treat DEB at mucosal surfaces, including inside the mouth, the eye, and the esophagus.

Authors of two editorials that accompanied the study also referred to other conditions B-VEC might treat.

This study “highlights potential future investigations,” David V. Schaffer, PhD, professor of chemical and biomolecular engineering, bioengineering, and molecular and cell biology at the University of California, Berkeley, wrotes in one of the editorials.

Important considerations he mentioned include the likelihood of the treatment becoming lifelong; the inability of HSV to penetrate intact skin, making B-VEC unsuitable for preventing the development of new wounds; and the inability of this treatment to treat EB lesions along the digestive tract. “This important trial builds on and extends gene-therapy successes to new targets and vectors, an advance for patients,” he added.

In the second editorial, Aimee S. Payne, MD, PhD, professor of dermatology at the University of Pennsylvania, Philadelphia, raised the question of whether B-VEC’s clinical success for treating DEB can translate to other genetic diseases.

“Formulations for ophthalmic, oral-gastrointestinal, or respiratory delivery would be of great value to address the extracutaneous manifestations of epidermolysis bullosa and other genetic diseases,” she wrote.

Referring to an ongoing trial of a topical gene therapy for cystic fibrosis that is delivered by a nebulizer, Dr. Payne noted, “Ultimately, the completion of clinical trials such as this one will be required to determine whether HSV-1–mediated gene delivery can go more than skin deep.”

Earlier data and more details of the study were presented in a poster at the annual meeting of the Society for Pediatric Dermatology in July 2022.

Dr. Marinkovich has disclosed no relevant financial relationships. Several coauthors are employees of or have other financial relationships with Krystal Biotech, the study’s sponsor and the developer of beremagene geperpavec. Dr. Schaffer and Dr. Payne have financial relationships with the pharmaceutical industry. Dr. Ebens, Dr. Holland, and Dr. Vakharia have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

People with untreatable dystrophic epidermolysis bullosa (DEB) may soon have access to an investigational gene therapy delivered in a topical gel that is currently under review by the Food and Drug Administration.

In a phase 3 study of patients with DEB, “we found that repeated topical application of B-VEC [beremagene geperpavec], an HSV-1–based gene therapy, resulted in a greater likelihood of complete wound healing than the topical application of placebo at up to 6 months,” the authors wrote. The study was published in The New England Journal of Medicine. “Longer and larger trials are warranted to determine the durability of effect and risks of this approach,” the authors noted.

“The results prove that B-VEC, the first topical in vivo gene therapy to reach late-stage development, can heal DEB,” senior author M. Peter Marinkovich, MD, associate professor of dermatology at Stanford University, Redwood City, Calif., said in an interview.

“In the past, DEB was a very specialized disease that only a handful of dermatologists would see but could not do much to treat,” he said. “With gene therapy, many more dermatologists who may not be familiar with DEB will be able to treat these patients in their offices.” It is expected that nurses will be able to administer the treatment to patients at home, he added.
 

Rare, life-threatening, genetic blistering disease

DEB, a rare disease that affects one to three persons per million in the United States, is caused by mutations in the COL7A1 gene that encodes the alpha-1 chain of collagen type VII (C7) protein. C7 forms the anchoring fibrils that attach the epidermis to the underlying dermal connective tissue.

COL71A mutations that lead to defective, decreased, or absent C7 can make the skin so fragile it tears with the slightest touch. This has led to patients being called “butterfly children.” Epithelial tissues blister and scar, causing esophageal and genitourinary strictures, adhesion of digits, malnutrition, anemia, infection, and bothersome itch and pain. Morbidity and mortality are high. The leading cause of death in adults is chronic wounds leading to aggressive squamous cell cancers.
 

The first therapy for DEB, under FDA review

B-VEC restores C7 protein by using an engineered replication-defective herpes simplex virus type 1 (HSV-1) vector to deliver the COL7A1 gene directly to skin cells to restore functional C7 protein fibrils that stabilize the skin structure.

On the basis of manufacturing information submitted to the FDA in December 2022, the agency extended the date for a decision on approval by 3 months, to May 19, 2023, according to a statement from Krystal Biotech, the developer of B-VEC and the sponsor of the NEJM study.

Dr. Marinkovich and his colleagues conducted the double-blind, randomized, controlled GEM-3 trial of B-VEC at three sites in the United States. The 31 study participants ranged in age from 1 to 44 years (median age, 16 years) and had genetically confirmed DEB (30 with the recessive form and 1 with the dominant form).

For each participant, a pair of wounds was chosen that were matched in size, region, and appearance. The wounds within each pair were randomly allocated to receive weekly applications of either B-VEC or placebo gel for 26 weeks.

The results of the study included the following:

• Complete healing at 6 months occurred in 67% of the wounds treated with B-VEC (including a wound in the patient with dominant DEB), vs. 22% of those who received placebo (95% confidence interval [CI], 24-68; P = .002).
• Complete healing at 3 months occurred in 71% of the wounds treated with B-VEC, vs. 20% of those who received placebo (95% CI, 29-73; P < .001).
• The mean change from baseline to week 22 in pain severity during wound-dressing changes for patients aged 6 years and older, as determined on the basis of a visual analogue scale, was –0.88 with B-VEC, vs. –0.71 with placebo (adjusted least-squares mean difference, –0.61; 95% CI, –1.10 to –0.13); similar mean changes were seen at weeks 24 and 26.
• Among all patients, 58% had at least one adverse event. Most adverse events were mild or moderate. The most common were pruritus, chills, and squamous cell carcinoma (SCC), which were reported in three patients each (SCC cases occurred at wound sites that had not been exposed to B-VEC or placebo). Serious adverse events, which were unrelated to the treatment, occurred in three patients: diarrhea, anemia, cellulitis, and a positive blood culture related to a hemodialysis catheter.

“With the ability to treat patients with topical gene therapy, dermatology is entering a new age of treatment possibilities,” Dr. Marinkovich said in the interview.

The researchers were surprised that the redosable in vivo gene therapy worked so well, he added. In vivo gene therapy has been plagued by the occurrence of immune reactions against the viral vectors used, Dr. Marinkovich explained. But because the herpes simplex virus has evolved to evade the immune system, his team could use the viral vector every week for 6 months without inflammatory reactions.

“The immune system’s inability to fight off or get rid of the herpes simplex vector makes it bad as a disease, but as a gene therapy vector, it provides a huge advantage,” he added.

Asked to comment on the results, Christen Ebens, MD, MPH, assistant professor in the department of pediatrics at the University of Minnesota, Minneapolis, whose clinical and research interests include EB, called the results exciting for patients, families, and doctors.

“Side effects were minimal, and importantly, use of the replication-incompetent HSV vector means that the payload gene does not integrate into the patient’s DNA,” Dr. Ebens, who was not involved in the study, said in an interview. “B-VEC is not a lifelong cure but potentially an effective maintenance therapy requiring repeated doses,” she added.

Although the researchers found no clinically important immune reactions to B-VEC, Dr. Ebens said she would like to see results from longer studies of the treatment. “We will want to see that patients do not produce neutralizing antibodies against B-VEC or its components, as such antibodies may yield the treatment ineffective or cause significant side effects.”

In an interview, Vanessa R. Holland, MD, associate clinical professor in the division of dermatology at UCLA Health, Burbank, Calif., who was not involved in the study, said that “topical replication-defective HSV-1 is a brilliant vector to deliver the depleted collagen.” She added that “such a vehicle may significantly alter management of these disorders and improve or extend lives by minimizing potentially fatal complications.”

Paras P. Vakharia, MD, PharmD, assistant professor of dermatology at Northwestern University, Chicago, who was not involved in the study, was surprised by the high percentage of healed wounds and wounds that remained healed over time.

B-VEC for treating other conditions

Dr. Marinkovich noted that an ongoing phase 1 clinical trial, also sponsored by Krystal Biotech, is using the HSV-1 vector to deliver a different biologic (KB105) to establish dose and safety in the treatment of ichthyosis. He added that he would like to explore the use of B-VEC to treat DEB at mucosal surfaces, including inside the mouth, the eye, and the esophagus.

Authors of two editorials that accompanied the study also referred to other conditions B-VEC might treat.

This study “highlights potential future investigations,” David V. Schaffer, PhD, professor of chemical and biomolecular engineering, bioengineering, and molecular and cell biology at the University of California, Berkeley, wrotes in one of the editorials.

Important considerations he mentioned include the likelihood of the treatment becoming lifelong; the inability of HSV to penetrate intact skin, making B-VEC unsuitable for preventing the development of new wounds; and the inability of this treatment to treat EB lesions along the digestive tract. “This important trial builds on and extends gene-therapy successes to new targets and vectors, an advance for patients,” he added.

In the second editorial, Aimee S. Payne, MD, PhD, professor of dermatology at the University of Pennsylvania, Philadelphia, raised the question of whether B-VEC’s clinical success for treating DEB can translate to other genetic diseases.

“Formulations for ophthalmic, oral-gastrointestinal, or respiratory delivery would be of great value to address the extracutaneous manifestations of epidermolysis bullosa and other genetic diseases,” she wrote.

Referring to an ongoing trial of a topical gene therapy for cystic fibrosis that is delivered by a nebulizer, Dr. Payne noted, “Ultimately, the completion of clinical trials such as this one will be required to determine whether HSV-1–mediated gene delivery can go more than skin deep.”

Earlier data and more details of the study were presented in a poster at the annual meeting of the Society for Pediatric Dermatology in July 2022.

Dr. Marinkovich has disclosed no relevant financial relationships. Several coauthors are employees of or have other financial relationships with Krystal Biotech, the study’s sponsor and the developer of beremagene geperpavec. Dr. Schaffer and Dr. Payne have financial relationships with the pharmaceutical industry. Dr. Ebens, Dr. Holland, and Dr. Vakharia have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

A restrictive fluid strategy had no significant impact on mortality in patients with sepsis-induced hypotension compared to the typical liberal fluid strategy, based on data from 1,563 individuals.

Intravenous fluids are standard in the early resuscitation of sepsis patients, as are vasopressor agents, but data comparing restrictive or liberal use in these patients are limited, wrote Nathan I. Shapiro, MD, of Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, and colleagues.

In a study published in the New England Journal of Medicine the researchers randomized 782 patients to the restrictive fluid group and 781 to the liberal fluid group. Patients aged 18 years and older were enrolled between March 7, 2018, and Jan. 31, 2022, at 60 centers in the United States. Participants were randomized within 4 hours of meeting the criteria for sepsis-induced hypotension that was refractory to initial treatment with 1-3 L of intravenous fluid. Baseline characteristics were similar between the groups. At randomization, 21% of patients in the restrictive fluid group and 18% in the liberal fluid group received vasopressors.

The primary outcome was 90-day all-cause mortality, which occurred in 109 and 116 patients in the liberal and restricted groups, respectively (approximately 14% of each group). No significant differences were noted among subgroups based on factors including systolic blood pressure and the use of vasopressors at randomization, chronic heart failure, end-stage renal disease, and pneumonia.

The restrictive fluid protocol called for vasopressors as the primary treatment for sepsis-induced hypotension, with “rescue fluids” to be used for prespecified situations of severe intravascular volume depletion. The liberal fluid protocol was a recommended initial intravenous infusion of 2,000 mL of isotonic crystalloid, followed by fluid boluses given based on clinical triggers such as tachycardia, along with “rescue vasopressors,” the researchers wrote.

The median volume of fluid administered in the first 24-hour period after randomization was 1,267 mL in the restrictive group and 3,400 mL in the liberal group. Adherence to the treatment protocols was greater than 90% for both groups.

The current study is distinct in its enrollment of patients with primary presentations of sepsis to a hospital emergency department, the researchers wrote in their discussion. “The patients who were enrolled in this trial were representative of the types of patients who present to the hospital with sepsis-induced hypotension; we expect our findings to be generalizable to these types of patients,” they said.

Reported serious adverse events were similar between the groups, though fewer episodes of fluid overload and pulmonary edema occurred in the restricted group.

The findings were limited by several factors including some cases in which patients in the restrictive group received more fluid than called for by the protocol, the researchers noted. Other limitations included the lack of subgroups with different coexisting conditions, the lack of blinding, and the lack of a control with no instructions for treatment protocol, they said. However, the results suggest that a restrictive fluid strategy had no significant advantage over a liberal strategy in terms of mortality for patients with sepsis-induced hypotension, they concluded.

The study was supported by the National Heart, Lung, and Blood Institute. Dr. Shapiro disclosed serving as a consultant for and having stock options in Diagnostic Robotics, as well as grant support from Inflammatrix and Rapid Pathogen Screening, and serving as a consultant for Prenosis.

A restrictive fluid strategy had no significant impact on mortality in patients with sepsis-induced hypotension compared to the typical liberal fluid strategy, based on data from 1,563 individuals.

Intravenous fluids are standard in the early resuscitation of sepsis patients, as are vasopressor agents, but data comparing restrictive or liberal use in these patients are limited, wrote Nathan I. Shapiro, MD, of Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, and colleagues.

In a study published in the New England Journal of Medicine the researchers randomized 782 patients to the restrictive fluid group and 781 to the liberal fluid group. Patients aged 18 years and older were enrolled between March 7, 2018, and Jan. 31, 2022, at 60 centers in the United States. Participants were randomized within 4 hours of meeting the criteria for sepsis-induced hypotension that was refractory to initial treatment with 1-3 L of intravenous fluid. Baseline characteristics were similar between the groups. At randomization, 21% of patients in the restrictive fluid group and 18% in the liberal fluid group received vasopressors.

The primary outcome was 90-day all-cause mortality, which occurred in 109 and 116 patients in the liberal and restricted groups, respectively (approximately 14% of each group). No significant differences were noted among subgroups based on factors including systolic blood pressure and the use of vasopressors at randomization, chronic heart failure, end-stage renal disease, and pneumonia.

The restrictive fluid protocol called for vasopressors as the primary treatment for sepsis-induced hypotension, with “rescue fluids” to be used for prespecified situations of severe intravascular volume depletion. The liberal fluid protocol was a recommended initial intravenous infusion of 2,000 mL of isotonic crystalloid, followed by fluid boluses given based on clinical triggers such as tachycardia, along with “rescue vasopressors,” the researchers wrote.

The median volume of fluid administered in the first 24-hour period after randomization was 1,267 mL in the restrictive group and 3,400 mL in the liberal group. Adherence to the treatment protocols was greater than 90% for both groups.

The current study is distinct in its enrollment of patients with primary presentations of sepsis to a hospital emergency department, the researchers wrote in their discussion. “The patients who were enrolled in this trial were representative of the types of patients who present to the hospital with sepsis-induced hypotension; we expect our findings to be generalizable to these types of patients,” they said.

Reported serious adverse events were similar between the groups, though fewer episodes of fluid overload and pulmonary edema occurred in the restricted group.

The findings were limited by several factors including some cases in which patients in the restrictive group received more fluid than called for by the protocol, the researchers noted. Other limitations included the lack of subgroups with different coexisting conditions, the lack of blinding, and the lack of a control with no instructions for treatment protocol, they said. However, the results suggest that a restrictive fluid strategy had no significant advantage over a liberal strategy in terms of mortality for patients with sepsis-induced hypotension, they concluded.

The study was supported by the National Heart, Lung, and Blood Institute. Dr. Shapiro disclosed serving as a consultant for and having stock options in Diagnostic Robotics, as well as grant support from Inflammatrix and Rapid Pathogen Screening, and serving as a consultant for Prenosis.

A restrictive fluid strategy had no significant impact on mortality in patients with sepsis-induced hypotension compared to the typical liberal fluid strategy, based on data from 1,563 individuals.

Intravenous fluids are standard in the early resuscitation of sepsis patients, as are vasopressor agents, but data comparing restrictive or liberal use in these patients are limited, wrote Nathan I. Shapiro, MD, of Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, and colleagues.

In a study published in the New England Journal of Medicine the researchers randomized 782 patients to the restrictive fluid group and 781 to the liberal fluid group. Patients aged 18 years and older were enrolled between March 7, 2018, and Jan. 31, 2022, at 60 centers in the United States. Participants were randomized within 4 hours of meeting the criteria for sepsis-induced hypotension that was refractory to initial treatment with 1-3 L of intravenous fluid. Baseline characteristics were similar between the groups. At randomization, 21% of patients in the restrictive fluid group and 18% in the liberal fluid group received vasopressors.

The primary outcome was 90-day all-cause mortality, which occurred in 109 and 116 patients in the liberal and restricted groups, respectively (approximately 14% of each group). No significant differences were noted among subgroups based on factors including systolic blood pressure and the use of vasopressors at randomization, chronic heart failure, end-stage renal disease, and pneumonia.

The restrictive fluid protocol called for vasopressors as the primary treatment for sepsis-induced hypotension, with “rescue fluids” to be used for prespecified situations of severe intravascular volume depletion. The liberal fluid protocol was a recommended initial intravenous infusion of 2,000 mL of isotonic crystalloid, followed by fluid boluses given based on clinical triggers such as tachycardia, along with “rescue vasopressors,” the researchers wrote.

The median volume of fluid administered in the first 24-hour period after randomization was 1,267 mL in the restrictive group and 3,400 mL in the liberal group. Adherence to the treatment protocols was greater than 90% for both groups.

The current study is distinct in its enrollment of patients with primary presentations of sepsis to a hospital emergency department, the researchers wrote in their discussion. “The patients who were enrolled in this trial were representative of the types of patients who present to the hospital with sepsis-induced hypotension; we expect our findings to be generalizable to these types of patients,” they said.

Reported serious adverse events were similar between the groups, though fewer episodes of fluid overload and pulmonary edema occurred in the restricted group.

The findings were limited by several factors including some cases in which patients in the restrictive group received more fluid than called for by the protocol, the researchers noted. Other limitations included the lack of subgroups with different coexisting conditions, the lack of blinding, and the lack of a control with no instructions for treatment protocol, they said. However, the results suggest that a restrictive fluid strategy had no significant advantage over a liberal strategy in terms of mortality for patients with sepsis-induced hypotension, they concluded.

The study was supported by the National Heart, Lung, and Blood Institute. Dr. Shapiro disclosed serving as a consultant for and having stock options in Diagnostic Robotics, as well as grant support from Inflammatrix and Rapid Pathogen Screening, and serving as a consultant for Prenosis.

Sleep disturbances are consistently high throughout the course of psychosis, with later stages associated with distinctive brain wave activity during sleep, a new review and meta-analysis shows.

For example, compared with their healthy peers, participants in a chronic psychosis stage had reduced density, amplitude, and duration of spindles – or bursts of brainwave activity during sleep identified by electroencephalography.

“The results suggest sleep could be an important target [and] an area of research and clinical intervention that could make a difference” in the lives of patients at risk for psychosis, study investigator Fabio Ferrarelli, MD, PhD, associate professor of psychiatry and director of the Sleep and Schizophrenia Program, University of Pittsburgh School of Medicine, told this news organization.

University of Pittsburgh

‘Window of opportunity’

Researchers separate psychosis into stages. During the “clinically high-risk for psychosis” (CHR-P) stage, patients have milder symptoms but do not have a diagnosable psychotic disorder. Those in the early psychosis (EP) stage have had a first episode of psychosis. When they reach a cut-off, often at 5 years, they are considered to have chronic psychosis (CP).

Previous studies have shown that altered sleep often precedes a psychotic episode in early psychosis, and disrupted sleep contributes to predicting transition to psychosis in youth at risk for the condition. Individuals with CP commonly report sleep disturbances, such as insomnia.

Following a literature search, the investigators for this current meta-analysis selected 21 studies assessing sleep disturbance prevalence in 5,135 patients. They also selected 39 studies measuring sleep alterations subjectively (for example, sleep quality) and/or objectively (for example, sleep architecture and sleep oscillation) in 1,575 patients and 977 healthy controls.

The included studies measured the prevalence of sleep disturbances and/or sleep characteristics at different psychosis stages using polysomnography, EEG, actigraphy, or self-reports.

The pooled prevalence of sleep disturbances was 50% across clinical stages (95% confidence interval, 40%-61%). The prevalence was 54% in CHR-P, 68% in EP, and 44% in CP.

The prevalence of insomnia as the primary sleep disturbance was 34% of pooled cases, 48% of the EP group, and 27% of the CP group.

“What’s interesting is the rate of sleep disturbances is relatively stable across stages,” said Dr. Ferrarelli. “This is important because you have a window of opportunity to do some early intervention in people who are at risk that can prevent things from getting worse.”

He suggests clinicians screen for insomnia in early-course patients and perhaps recommend cognitive behavioral therapy (CBT) for insomnia. As well, they should promote sleep hygiene measures for at-risk patients, including such things as avoiding caffeine, alcohol, and screen time before bedtime and adopting a regular sleep pattern.

“These are people at risk, which means they have a 20%-30% chance of eventually developing a psychotic disorder,” said Dr. Ferrarelli. “Maybe disrupted sleep is one of the factors that can make a difference.”
 

Altered sleep architecture

To compare sleep quality between clinical and control groups, studies used total scores on the Pittsburgh Sleep Quality Index (PSQI), where a score over 5 indicates a sleep problem.

There was a significant standardized mean difference in pooled cases versus controls (SMD, 1.0; 95% CI, 0.7-1.3; P < .001). Each clinical group showed poorer sleep quality, compared with controls.

When assessing sleep architecture abnormalities, stage-specific case-control comparisons showed these were driven by EP and CP stages.

Altered sleep characteristics in both these stages included increased sleep onset latency, increased wake after sleep onset, and reduced sleep efficiency.

Compared with controls, CP was the only clinical group with more arousals. Patients with CP also had more arousals than the CHR-P group, and the number of arousals was significantly affected by medication.

The findings indicate the effects of antipsychotic medications on sleep should be closely monitored, especially in CP, the investigators write.

They add that clinicians should consider medication adjustments, such as decreased doses or switches to another compound.
 

‘Robust’ spindle results

As for spindle parameters, pooled cases showed significantly decreased spindle density (SMD, –1.06), spindle amplitude (SMD, –1.08), and spindle duration (SMD, −1.21), compared with controls. Stage-specific comparisons revealed these deficits were present in both EP and CP relative to controls.

Dr. Ferrarelli noted the results for spindle abnormalities were among “the most robust” and show that these abnormalities “tend to get worse over the course of the illness.”

The spindle data are “a lot more informative” than that provided by other sleep parameters “in the sense they can yield what could be wrong, where it could be, and potentially what you can do about it,” said Dr. Ferrarelli.

“This might be an objective measure that could be used to identify individuals who have a psychosis disorder, monitor progression of illness, and for prognostic reasons,” he added.

He noted that spindles may also represent a promising target for treatment interventions and added that non-invasive transcranial magnetic stimulation has shown promise in restoring sleep oscillations, including spindles.

Another way to evoke target-brain activity may be through auditory tones – with a patient listening to a particular sound through headphones while asleep, Dr. Ferrarelli said.
 

Reaffirms previous data

Commenting on the study, Jeffrey A. Lieberman, MD, professor and chair in psychiatry at Columbia University, New York, and a past president of the American Psychiatric Association, noted that the review “just reaffirms what has been reported by individual studies for decades.”

That so many at-risk study subjects had a sleep abnormality is not surprising, said Dr. Lieberman, who was not involved with the current research.

“How many individuals in late adolescence or early adulthood have sleep problems?” he asked. “I would venture to say it’s probably a lot. So the question is: How distinctive is this from what occurs in people who don’t develop the illness?”

The aim of sleep research in the area of schizophrenia has long been to disentangle the effects of medication and environmental factors from the disease and to be able to treat patients to normalize their sleep, said Dr. Lieberman.

“But it’s not clear from these results how one would do that,” he added.

The authors “don’t fundamentally tell us anything about the underlying cause of the illness or the pathophysiology, and they don’t really offer any kind of clear direction for clinical intervention,” he said.

The study was supported by the National Institute of Mental Health. Dr. Ferrarelli reported grants from the National Institute of Mental Health during the conduct of the study. Dr. Lieberman has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Sleep disturbances are consistently high throughout the course of psychosis, with later stages associated with distinctive brain wave activity during sleep, a new review and meta-analysis shows.

For example, compared with their healthy peers, participants in a chronic psychosis stage had reduced density, amplitude, and duration of spindles – or bursts of brainwave activity during sleep identified by electroencephalography.

“The results suggest sleep could be an important target [and] an area of research and clinical intervention that could make a difference” in the lives of patients at risk for psychosis, study investigator Fabio Ferrarelli, MD, PhD, associate professor of psychiatry and director of the Sleep and Schizophrenia Program, University of Pittsburgh School of Medicine, told this news organization.

University of Pittsburgh

‘Window of opportunity’

Researchers separate psychosis into stages. During the “clinically high-risk for psychosis” (CHR-P) stage, patients have milder symptoms but do not have a diagnosable psychotic disorder. Those in the early psychosis (EP) stage have had a first episode of psychosis. When they reach a cut-off, often at 5 years, they are considered to have chronic psychosis (CP).

Previous studies have shown that altered sleep often precedes a psychotic episode in early psychosis, and disrupted sleep contributes to predicting transition to psychosis in youth at risk for the condition. Individuals with CP commonly report sleep disturbances, such as insomnia.

Following a literature search, the investigators for this current meta-analysis selected 21 studies assessing sleep disturbance prevalence in 5,135 patients. They also selected 39 studies measuring sleep alterations subjectively (for example, sleep quality) and/or objectively (for example, sleep architecture and sleep oscillation) in 1,575 patients and 977 healthy controls.

The included studies measured the prevalence of sleep disturbances and/or sleep characteristics at different psychosis stages using polysomnography, EEG, actigraphy, or self-reports.

The pooled prevalence of sleep disturbances was 50% across clinical stages (95% confidence interval, 40%-61%). The prevalence was 54% in CHR-P, 68% in EP, and 44% in CP.

The prevalence of insomnia as the primary sleep disturbance was 34% of pooled cases, 48% of the EP group, and 27% of the CP group.

“What’s interesting is the rate of sleep disturbances is relatively stable across stages,” said Dr. Ferrarelli. “This is important because you have a window of opportunity to do some early intervention in people who are at risk that can prevent things from getting worse.”

He suggests clinicians screen for insomnia in early-course patients and perhaps recommend cognitive behavioral therapy (CBT) for insomnia. As well, they should promote sleep hygiene measures for at-risk patients, including such things as avoiding caffeine, alcohol, and screen time before bedtime and adopting a regular sleep pattern.

“These are people at risk, which means they have a 20%-30% chance of eventually developing a psychotic disorder,” said Dr. Ferrarelli. “Maybe disrupted sleep is one of the factors that can make a difference.”
 

Altered sleep architecture

To compare sleep quality between clinical and control groups, studies used total scores on the Pittsburgh Sleep Quality Index (PSQI), where a score over 5 indicates a sleep problem.

There was a significant standardized mean difference in pooled cases versus controls (SMD, 1.0; 95% CI, 0.7-1.3; P < .001). Each clinical group showed poorer sleep quality, compared with controls.

When assessing sleep architecture abnormalities, stage-specific case-control comparisons showed these were driven by EP and CP stages.

Altered sleep characteristics in both these stages included increased sleep onset latency, increased wake after sleep onset, and reduced sleep efficiency.

Compared with controls, CP was the only clinical group with more arousals. Patients with CP also had more arousals than the CHR-P group, and the number of arousals was significantly affected by medication.

The findings indicate the effects of antipsychotic medications on sleep should be closely monitored, especially in CP, the investigators write.

They add that clinicians should consider medication adjustments, such as decreased doses or switches to another compound.
 

‘Robust’ spindle results

As for spindle parameters, pooled cases showed significantly decreased spindle density (SMD, –1.06), spindle amplitude (SMD, –1.08), and spindle duration (SMD, −1.21), compared with controls. Stage-specific comparisons revealed these deficits were present in both EP and CP relative to controls.

Dr. Ferrarelli noted the results for spindle abnormalities were among “the most robust” and show that these abnormalities “tend to get worse over the course of the illness.”

The spindle data are “a lot more informative” than that provided by other sleep parameters “in the sense they can yield what could be wrong, where it could be, and potentially what you can do about it,” said Dr. Ferrarelli.

“This might be an objective measure that could be used to identify individuals who have a psychosis disorder, monitor progression of illness, and for prognostic reasons,” he added.

He noted that spindles may also represent a promising target for treatment interventions and added that non-invasive transcranial magnetic stimulation has shown promise in restoring sleep oscillations, including spindles.

Another way to evoke target-brain activity may be through auditory tones – with a patient listening to a particular sound through headphones while asleep, Dr. Ferrarelli said.
 

Reaffirms previous data

Commenting on the study, Jeffrey A. Lieberman, MD, professor and chair in psychiatry at Columbia University, New York, and a past president of the American Psychiatric Association, noted that the review “just reaffirms what has been reported by individual studies for decades.”

That so many at-risk study subjects had a sleep abnormality is not surprising, said Dr. Lieberman, who was not involved with the current research.

“How many individuals in late adolescence or early adulthood have sleep problems?” he asked. “I would venture to say it’s probably a lot. So the question is: How distinctive is this from what occurs in people who don’t develop the illness?”

The aim of sleep research in the area of schizophrenia has long been to disentangle the effects of medication and environmental factors from the disease and to be able to treat patients to normalize their sleep, said Dr. Lieberman.

“But it’s not clear from these results how one would do that,” he added.

The authors “don’t fundamentally tell us anything about the underlying cause of the illness or the pathophysiology, and they don’t really offer any kind of clear direction for clinical intervention,” he said.

The study was supported by the National Institute of Mental Health. Dr. Ferrarelli reported grants from the National Institute of Mental Health during the conduct of the study. Dr. Lieberman has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Sleep disturbances are consistently high throughout the course of psychosis, with later stages associated with distinctive brain wave activity during sleep, a new review and meta-analysis shows.

For example, compared with their healthy peers, participants in a chronic psychosis stage had reduced density, amplitude, and duration of spindles – or bursts of brainwave activity during sleep identified by electroencephalography.

“The results suggest sleep could be an important target [and] an area of research and clinical intervention that could make a difference” in the lives of patients at risk for psychosis, study investigator Fabio Ferrarelli, MD, PhD, associate professor of psychiatry and director of the Sleep and Schizophrenia Program, University of Pittsburgh School of Medicine, told this news organization.

University of Pittsburgh

‘Window of opportunity’

Researchers separate psychosis into stages. During the “clinically high-risk for psychosis” (CHR-P) stage, patients have milder symptoms but do not have a diagnosable psychotic disorder. Those in the early psychosis (EP) stage have had a first episode of psychosis. When they reach a cut-off, often at 5 years, they are considered to have chronic psychosis (CP).

Previous studies have shown that altered sleep often precedes a psychotic episode in early psychosis, and disrupted sleep contributes to predicting transition to psychosis in youth at risk for the condition. Individuals with CP commonly report sleep disturbances, such as insomnia.

Following a literature search, the investigators for this current meta-analysis selected 21 studies assessing sleep disturbance prevalence in 5,135 patients. They also selected 39 studies measuring sleep alterations subjectively (for example, sleep quality) and/or objectively (for example, sleep architecture and sleep oscillation) in 1,575 patients and 977 healthy controls.

The included studies measured the prevalence of sleep disturbances and/or sleep characteristics at different psychosis stages using polysomnography, EEG, actigraphy, or self-reports.

The pooled prevalence of sleep disturbances was 50% across clinical stages (95% confidence interval, 40%-61%). The prevalence was 54% in CHR-P, 68% in EP, and 44% in CP.

The prevalence of insomnia as the primary sleep disturbance was 34% of pooled cases, 48% of the EP group, and 27% of the CP group.

“What’s interesting is the rate of sleep disturbances is relatively stable across stages,” said Dr. Ferrarelli. “This is important because you have a window of opportunity to do some early intervention in people who are at risk that can prevent things from getting worse.”

He suggests clinicians screen for insomnia in early-course patients and perhaps recommend cognitive behavioral therapy (CBT) for insomnia. As well, they should promote sleep hygiene measures for at-risk patients, including such things as avoiding caffeine, alcohol, and screen time before bedtime and adopting a regular sleep pattern.

“These are people at risk, which means they have a 20%-30% chance of eventually developing a psychotic disorder,” said Dr. Ferrarelli. “Maybe disrupted sleep is one of the factors that can make a difference.”
 

Altered sleep architecture

To compare sleep quality between clinical and control groups, studies used total scores on the Pittsburgh Sleep Quality Index (PSQI), where a score over 5 indicates a sleep problem.

There was a significant standardized mean difference in pooled cases versus controls (SMD, 1.0; 95% CI, 0.7-1.3; P < .001). Each clinical group showed poorer sleep quality, compared with controls.

When assessing sleep architecture abnormalities, stage-specific case-control comparisons showed these were driven by EP and CP stages.

Altered sleep characteristics in both these stages included increased sleep onset latency, increased wake after sleep onset, and reduced sleep efficiency.

Compared with controls, CP was the only clinical group with more arousals. Patients with CP also had more arousals than the CHR-P group, and the number of arousals was significantly affected by medication.

The findings indicate the effects of antipsychotic medications on sleep should be closely monitored, especially in CP, the investigators write.

They add that clinicians should consider medication adjustments, such as decreased doses or switches to another compound.
 

‘Robust’ spindle results

As for spindle parameters, pooled cases showed significantly decreased spindle density (SMD, –1.06), spindle amplitude (SMD, –1.08), and spindle duration (SMD, −1.21), compared with controls. Stage-specific comparisons revealed these deficits were present in both EP and CP relative to controls.

Dr. Ferrarelli noted the results for spindle abnormalities were among “the most robust” and show that these abnormalities “tend to get worse over the course of the illness.”

The spindle data are “a lot more informative” than that provided by other sleep parameters “in the sense they can yield what could be wrong, where it could be, and potentially what you can do about it,” said Dr. Ferrarelli.

“This might be an objective measure that could be used to identify individuals who have a psychosis disorder, monitor progression of illness, and for prognostic reasons,” he added.

He noted that spindles may also represent a promising target for treatment interventions and added that non-invasive transcranial magnetic stimulation has shown promise in restoring sleep oscillations, including spindles.

Another way to evoke target-brain activity may be through auditory tones – with a patient listening to a particular sound through headphones while asleep, Dr. Ferrarelli said.
 

Reaffirms previous data

Commenting on the study, Jeffrey A. Lieberman, MD, professor and chair in psychiatry at Columbia University, New York, and a past president of the American Psychiatric Association, noted that the review “just reaffirms what has been reported by individual studies for decades.”

That so many at-risk study subjects had a sleep abnormality is not surprising, said Dr. Lieberman, who was not involved with the current research.

“How many individuals in late adolescence or early adulthood have sleep problems?” he asked. “I would venture to say it’s probably a lot. So the question is: How distinctive is this from what occurs in people who don’t develop the illness?”

The aim of sleep research in the area of schizophrenia has long been to disentangle the effects of medication and environmental factors from the disease and to be able to treat patients to normalize their sleep, said Dr. Lieberman.

“But it’s not clear from these results how one would do that,” he added.

The authors “don’t fundamentally tell us anything about the underlying cause of the illness or the pathophysiology, and they don’t really offer any kind of clear direction for clinical intervention,” he said.

The study was supported by the National Institute of Mental Health. Dr. Ferrarelli reported grants from the National Institute of Mental Health during the conduct of the study. Dr. Lieberman has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.