Dupixent is dispensed through specialty pharmacies and administered by injection every two to four weeks, which means the use record is unusually complete. The diagnosis record is where the work is: CTCL is often identified after multiple biopsies over years, and the question of when the disease was actually present is both a medical and a legal one.
Establishing use
Specialty pharmacy records. Dupixent ships from a handful of specialty pharmacies with dated dispensing records. These show start date, doses, and gaps.
Prescriber records. Dermatology, allergy, or pulmonology notes documenting the prescription, the indication, and response over time.
Manufacturer support programs. Enrollment in copay or patient support programs generates records the manufacturer holds, which can be obtained in discovery.
The dermatology chart from before you started Dupixent is as important as the one after. It shows what your skin looked like, what was tried, and whether CTCL was ever considered — the foundation of the masking theory.
Direct2Attorney · Claim GuidanceEstablishing diagnosis
Pathology
The diagnosis itself- Every skin biopsy report, including inconclusive ones
- Immunohistochemistry and T-cell receptor gene rearrangement results
- Lymph node biopsy if performed
- Blood flow cytometry if Sézary syndrome was evaluated
Staging and treatment
The severity- Oncology consultation and staging (TNMB)
- Imaging reports
- Treatment records: phototherapy, radiation, systemic therapy
- Response and current status
The timeline question
The defense will argue that CTCL was present, undiagnosed, before Dupixent — and therefore the drug did not cause it. The plaintiff’s response is that the label should have warned about masking and recommended screening, so a pre-existing lymphoma diagnosed late is exactly the harm alleged. Both sides need the full dermatology history. Your job is to identify every provider; the firm’s job is to obtain and analyze the records.
Damages documentation
Medical bills and insurance statements. Time off work for treatment. A log of symptoms, appointments, and limitations. For advanced disease, records of hospitalization and any lasting effects. For wrongful death claims, the death certificate and the treating oncologist’s records.
What this means if you're considering a claim
You do not need to gather all of this first. List your prescribers and dermatologists and note your diagnosis date; a participating firm handles records. A free review starts the process.
Have a diagnosis and know your providers?
That is enough to start. Free, confidential review.
Common Questions
Not necessarily. Multiple biopsies before diagnosis is the typical CTCL history and supports the delayed-diagnosis theory.
Sample dispensing is usually noted in the chart. Mention it so the firm can confirm the earliest use date.
No. Never change treatment for a legal reason. Records are the evidence.
As far as possible. Firms typically request the full history of skin complaints.
No. Direct2Attorney’s review is free, and participating law firms typically work on contingency, meaning fees are generally paid only if there is a recovery. Confirm fee terms in writing with the firm.
