Dupilumab for Itching
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial aims to evaluate how effectively dupilumab (an injectable medication) relieves itching in individuals who have experienced chronic itching of unknown cause for at least six months. Participants will receive either dupilumab or a placebo, along with a non-drowsy antihistamine and moisturizer, for 24 weeks. This trial is ideal for those with severe, persistent itching affecting areas like the legs, arms, or trunk, especially if previous treatments have provided little relief. As a Phase 3 trial, it represents the final step before FDA approval, offering participants the opportunity to contribute to the potential availability of a new treatment.
Do I need to stop my current medications to join the trial?
The trial does not specify if you need to stop your current medications. However, you will be required to take a non-sedative antihistamine and a moisturizer during the trial.
Is there any evidence suggesting that this trial's treatments are likely to be safe?
Research has shown that dupilumab is generally safe. In studies involving individuals with skin conditions like atopic dermatitis, dupilumab maintained a good safety record. Most side effects were mild or moderate, such as dry eyes or injection site reactions, while serious side effects were rare.
One study found that people with eczema who used dupilumab improved without needing steroids, which are often used to manage symptoms. This finding suggests dupilumab might be a safer long-term option for some individuals.
Although there is less information on its use in people with certain health issues, like heart disease or cancer, current data suggests that dupilumab is safe for most individuals. It is important to consult a doctor before joining a trial to determine if this treatment is appropriate.12345Why do researchers think this study treatment might be promising?
Most treatments for itching primarily rely on topical corticosteroids or oral antihistamines to manage symptoms. However, Dupilumab is unique because it targets the immune response directly by blocking the IL-4 and IL-13 signaling pathways, which are key drivers of inflammation and itch in conditions like eczema. This mechanism of action offers a more targeted approach compared to traditional treatments. Additionally, Dupilumab is administered via a subcutaneous injection every two weeks, which can provide consistent relief without the need for daily medication. Researchers are excited about Dupilumab because it has the potential to offer more sustained and effective relief for patients with chronic itching conditions.
What evidence suggests that this trial's treatments could be effective for CPUO?
Research has shown that dupilumab, which participants in this trial may receive, can help reduce itching in various skin conditions. One study found that 41% of adults with moderate-to-severe atopic dermatitis experienced a significant decrease in itch after using dupilumab, compared to only 12% with a placebo. Another study on prurigo nodularis found that dupilumab helped improve itch symptoms. These findings suggest that dupilumab may effectively reduce severe itching in conditions like chronic pruritus of unknown origin (CPUO).12678
Are You a Good Fit for This Trial?
Adults aged 18-90 with severe, chronic itching of unknown origin that affects at least two body areas (legs, arms, or trunk) and have not found relief from previous treatments. Participants must score 'severe' on itch severity scales and be in good health otherwise. Those with certain infections, immune deficiencies, severe kidney failure, hypersensitivity to antihistamines or a history of cancer within the last five years are excluded.Inclusion Criteria
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Run-in
Participants with severe pruritus enter a 4-week run-in period with a non-sedative antihistamine and an emollient
Treatment
Participants are randomized to receive either dupilumab or placebo for 24 weeks (Study A) or 12 weeks (Study B) in addition to their antihistamine and emollient regimen
Follow-up
Participants are monitored for safety and effectiveness after treatment
What Are the Treatments Tested in This Trial?
Interventions
- Dupilumab
Dupilumab is already approved in United States, European Union for the following indications:
- Atopic dermatitis
- Asthma
- Chronic rhinosinusitis with nasal polyps
- Eosinophilic esophagitis
- Atopic dermatitis
- Asthma
- Chronic rhinosinusitis with nasal polyps
- Eosinophilic esophagitis
Find a Clinic Near You
Who Is Running the Clinical Trial?
Sanofi
Lead Sponsor
Paul Hudson
Sanofi
Chief Executive Officer since 2019
Degree in Economics from Manchester Metropolitan University
Christopher Corsico
Sanofi
Chief Medical Officer
MD from Cornell University, MPH in Chronic Disease Epidemiology from Yale University