Baricitinib in the Treatment of Kohlmeier-Degos Disease in Patients With Neurological Involvement

A Phase IIa Trial of Baricitinib in the Treatment of Kohlmeier-Degos Disease Patients With Neurological Involvement

Background:

Kohlmeier-Degos (KD) is a rare disease that causes inflammation and blood clots, leading to blockages in small blood vessels. These blockages can result in K-D lesions throughout the body, affecting the skin, lungs, heart, spinal cord, and brain. KD can be fatal. No treatment exists for this disease.

Objective:

To test a study drug (baricitinib) in people with brain and spine lesions caused by KD disease. Baricitinib is FDA approved to treat other disorders but has not yet been tried in people with KD.

Eligibility:

People aged 18 years or older with KD-related lesions in the brain and spine.

Design:

Participants will be screened; they will have a physical exam with blood tests. They will also have a baseline visit that may include multiple tests, such as imaging scans of the brain and spine; a lumbar puncture to collect fluid from the spinal canal; and a meeting with a neurologist. They will fill out a questionnaire about their health. They will continue to take their normal medications throughout the study.

Baricitinib is a tablet taken by mouth. Participants will remain on their normal medications for 12 weeks after their baseline visit. Then they will also take the study drug once a day at home for 24 weeks.

Participants will have clinic visits every few weeks for up to 40 weeks. Some visits may take 1 to 4 days. Baseline tests will be repeated 3 more times during study visits. Other visits will require only blood tests; these may be done by local labs that will send the samples to NIH; 2 visits may be done via telehealth....

Study Overview

• Status: Recruiting
• Conditions: Malignant Atrophic Papulosis; Kohlmeier-Degos Disease; Degos Disease; Papulosis, Malignant Atrophic
• Intervention / Treatment: Drug: Baricitinib

Detailed Description

Study Description:

This phase II study will provide off-label baricitinib treatment in patients with Kohlmeier Degos disease (K-D) with neurologic involvement. We will perform a baseline research evaluation at the time of enrollment and follow each patient for 12 weeks of background therapy (defined as medications taken by the subject for management of Degos symptoms) followed by 24 weeks of baricitinib treatment (4 mg daily) in addition to background therapy followed by 4 additional weeks of background therapy with final safety assessment at 40 weeks. We will repeat research evaluations at the end of weeks 12, 24, and 36. We will compare the disease progression between weeks 1 through 12 to weeks 13 through 24 as well as weeks 13 through 36. We hypothesize that baricitinib, which targets type I interferon (IFN) and IFN-g signaling, will attenuate various neurological manifestations of K-D that are observed clinically, radiologically or in abnormal laboratory findings in our KD patients. This will help reduce IFN signaling in a manner that may slow or halt the disease progression as measured by the endpoints established below.

Objectives:

Primary Objective:

To test whether baricitinib delays progression of neuroradiological manifestations in patients with neurological involvement of K-D disease.

Secondary Objectives:

To test whether baricitinib treatment improves patient-reported outcomes.

Exploratory Objectives:

• Assess changes in immune cell proportion using single cell Ribonucleic Acid (RNA) sequencing (scRNA-seq) in biospecimens such as skin, cerebrospinal fluid (CSF) and blood after 12 and 24 weeks of baricitinib treatment compared to 12 weeks of just background therapy
• Assess changes in plasma/serum cytokine levels and IFN scores as well as biomarker assays in CSF/blood samples after 12 and 24 weeks of baricitinib treatment compared to 12 weeks of just background therapy.
• To assess whether 12 or 24 weeks of baricitinib treatment will stabilize or improve clinical neurologic exams.
• To assess whether 12 or 24 weeks of baricitinib treatment compared to 12 weeks of just background therapy will reduce the number of new acute K-D skin lesions or slow/halt the progression of existing K-D skin lesions. To assess whether 12 or 24 weeks of baricitinib treatment will reduce the number of new acute K-D skin lesions or slow/halt the progression of existing K-D skin lesions.

Endpoints:

• The primary endpoint will assess the stability of existing enhancing lesions or the lack of development of new enhancing lesions in the brain and spine observed by Magnetic Resonance Imaging (MRI) after 12 or 24 weeks of baricitinib treatment (4 milligrams [mg] daily) compared to existing enhancing lesions observed over 12 weeks of background therapy.
• The secondary endpoints will assess the change over 12 and 24 weeks of baricitinib treatment as compared to 12 weeks of background therapy only for the following outcomes: self-reported outcome measures based on health-related questionnaire ( SF-36 ).

• Exploratory endpoints of this study will be clinical and potential surrogate biomarker efficacy data, including:

  • Changes in transcriptome/ribonucleic acid (RNA) expression determined by scRNA-seq in skin, CSF and peripheral blood mononuclear cells (PBMCs) after 12 or 24 weeks of baricitinib treatment as compared to 12 weeks of background therapy only.
  • Attenuation of plasma/serum cytokine levels and IFN scores as well as biomarkers in assays using CSF and blood samples after 12 and 24 weeks of baricitinib treatment as compared to 12 weeks of background therapy.
  • Stability or improvement of motor and/or sensory function on clinical neurologic exams after the 12 or 24 weeks of baricitinib treatment as compared to 12 weeks of background therapy only.
  • Changes in the number of new acute K-D skin lesions or slowing/halting progression of existing K-D skin lesions after 12 or 24 weeks of baricitinib treatment as compared to 12 weeks of background therapy only.

• Study Type: Interventional
• Enrollment (Estimated): 12
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Cornelia D Cudrici, M.D.; Phone Number: (240) 515-5540; Email: cornelia.cudrici@nih.gov
• Study Contact Backup: Name: William R Whalen, C.R.N.P.; Phone Number: (301) 402-9841; Email: william.whalen@nih.gov

Study Locations

• United States
  • Maryland
    • Bethesda, Maryland, United States, 20892
      • Recruiting
      • National Institutes of Health Clinical Center
      • Contact: NIH Clinical Center Office of Patient Recruitment (OPR); Phone Number: TTY dial 711 800-411-1222; Email: ccopr@nih.gov

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

• INCLUSION CRITERIA:

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

• Provision of signed and dated informed consent form by the subject or Legally Authorized Representative (LAR).
• Stated willingness to comply with all study procedures and availability for the duration of the study.
• Male or female, aged 18 or older.
• Subjects diagnosed with systemic Degos disease, who manifest neurologic abnormalities observed clinically, radiologically or in abnormal laboratory findings.
• Ability to take oral medication and be willing to adhere to the baricitinib regimen.
• For female patients of reproductive potential, non-pregnant, non-breastfeeding: agree to use of highly effective contraception for the duration of the study and 30 days after the last dose.
• Ability of subject or LAR to understand and the willingness to sign a written informed consent document.

EXCLUSION CRITERIA:

• Active infection not responding to appropriate therapy
• Hemoglobin <7 g/dL
• Platelet counts < 50 K /mcL
• Neutropenia (ANC <0.5 x k/mcL)
• Lymphopenia (Absolute Lymphocyte Count [ALC] <0.2x k/mcL)
• Liver function tests (LFTs > 2x time upper limit of normal)
• Estimated Glomerular Filtration Rate (eGFR)/Creatinine (Cr < 30 mL/min)
• Have experienced any of the following within 12 weeks of screening: VTE (DVT/pulmonary embolism [PE]), myocardial infarction (MI), unstable ischemic heart disease, stroke, or New York Heart Association Stage III/IV heart failure.
• Have had symptomatic herpes zoster infection within 12 weeks prior to a enrolling in the study .
• Have had household contact with a person with active TB and did not receive appropriate and documented prophylaxis for TB.
• Have evidence of active TB or latent TB
• Have been exposed to a live vaccine within 12 weeks of baricitinib treatment or are expected to need/receive a live vaccine during the course of the study
• No gadolinium based contrast agent exposure is permitted if eGFR < 30 mL/min/1.73m^2 using the CKD-EPI equation measured within 5 days .
• Breast feeding
• Pregnancy
• Uncontrolled malignancy

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Participants with K(SqrRoot)(Delta)hlmeier-Degos Disease receiving Baricitinib; All participants will take baricitinib 4mg oral daily for 24 weeks.	Drug: Baricitinib; Participants will be instructed to take baricitinib 4mg oral daily for 24 weeks (with or without food)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of participants with stability of existing enhancing lesions in the brain and/or spine observed in MRI	Stability of existing enhancing lesions in the brain and/or spine observed in MRI after 12 or 24 weeks of baricitinib treatment (4 mg daily) as compared to MRI images after 12 weeks of background therapy only.	Baseline, Week 12, Week 24, Week 36
Number of participants with no new enhancing lesions in the brain and/or spine observed in MRI	Lack of development of new enhancing lesions in the brain and/or spine observed in MRI after 12 or 24 weeks of baricitinib treatment (4 mg daily) as compared to MRI images after 12 weeks of background therapy only.	Baseline, Week 12, Week 24, Week 36

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in health outcome questionnaire, Short Form-36 (SF-36)	Compare the change in health outcome questionnaire, Short Form-36 (SF-36), over 12 and 24 weeks of baricitinib treatment as compared to 12 weeks of background therapy. This 36-item, patient-reported survey assesses quality of life. It consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.	Baseline, Week 12, Week 16, Week 24, Week 36, and up to Week 40
Neurological symptoms using CTCAE	Compare the change of neurological symptoms using CTCAE over 12 and 24 weeks of baricitinib treatment as compared to 12 weeks of background therapy.	Up to 40 weeks

Collaborators and Investigators

• Sponsor: National Heart, Lung, and Blood Institute (NHLBI)
• Investigators: Principal Investigator: Cornelia D Cudrici, M.D., National Heart, Lung, and Blood Institute (NHLBI)

Publications and helpful links

Helpful Links

• NIH Clinical Center Detailed Web Page

Study record dates

Study Major Dates

• Study Start (Actual): February 18, 2026
• Primary Completion (Estimated): December 14, 2030
• Study Completion (Estimated): December 15, 2030

Study Registration Dates

• First Submitted: April 10, 2025
• First Submitted That Met QC Criteria: April 10, 2025
• First Posted (Actual): April 11, 2025

Study Record Updates

• Last Update Posted (Actual): April 3, 2026
• Last Update Submitted That Met QC Criteria: April 2, 2026
• Last Verified: April 1, 2026

More Information

Terms related to this study

• Keywords: Baricitinib; Degos Disease; Kohlmeier-Degos; Neurological involvement of Degos Disease
• Additional Relevant MeSH Terms: Vascular Diseases; Cardiovascular Diseases; Skin Diseases; Skin Diseases, Vascular; Arterial Occlusive Diseases; Vasculitis; Skin and Connective Tissue Diseases; Malignant Atrophic Papulosis; baricitinib
• Other Study ID Numbers: 10002416; 002416-H

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: All IPD that underlie results in a publication
• IPD Sharing Time Frame: Starting approximately 6 months after publication and available indefinitely
• IPD Sharing Access Criteria: Data will be shared through the NHLBI BioData Catalyst, which is a controlled access repository.
• IPD Sharing Supporting Information Type: STUDY_PROTOCOL; SAP; ICF

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No