|Seattle Genetics Submits Supplemental Biologics License Application to FDA for ADCETRIS® (Brentuximab Vedotin) in Cutaneous T-Cell Lymphoma|
BLA Based on Clinical Trial Results from the Phase 3 ALCANZA and Phase 2 Investigator-Sponsored Studies in Cutaneous T-Cell Lymphoma
“The submission of the supplemental BLA requesting label expansion for
ADCETRIS as a treatment in CTCL patients who require systemic therapy is
an important milestone. CTCL is an incurable and disfiguring disease in
need of new therapeutic options, particularly those that achieve durable
The supplemental BLA is primarily based on positive results from a phase
3 trial called ALCANZA that were presented at the 58th
Lymphoma is a general term for a group of cancers that originate in the
lymphatic system. There are two major categories of lymphoma: Hodgkin
lymphoma and non-Hodgkin lymphoma. Cutaneous lymphomas are a category of
non-Hodgkin lymphoma that primarily involve the skin. According to the
The standard treatment for systemically pretreated CTCL includes skin-directed therapies, radiation and systemic therapies. The systemic therapies currently approved for treatment have demonstrated 30 to 45 percent objective response rates, with low complete response rates.
ADCETRIS is being evaluated broadly in more than 70 ongoing clinical trials, including three Phase 3 studies, the ongoing ECHELON-1 trial in frontline classical Hodgkin lymphoma and the ongoing ECHELON-2 trial in frontline mature T-cell lymphomas, as well as the completed ALCANZA trial in cutaneous T-cell lymphoma, from which data were submitted in a supplemental BLA.
ADCETRIS is an ADC comprising an anti-CD30 monoclonal antibody attached by a protease-cleavable linker to a microtubule disrupting agent, monomethyl auristatin E (MMAE), utilizing Seattle Genetics’ proprietary technology. The ADC employs a linker system that is designed to be stable in the bloodstream but to release MMAE upon internalization into CD30-positive tumor cells.
ADCETRIS for intravenous injection has received approval from the
ADCETRIS was granted conditional marketing authorization by the
ADCETRIS has received marketing authorization by regulatory authorities in 67 countries for relapsed or refractory Hodgkin lymphoma and sALCL. See important safety information below.
ADCETRIS (brentuximab vedotin) U.S. Important Safety Information
Progressive multifocal leukoencephalopathy (PML): JC virus infection resulting in PML and death can occur in patients receiving ADCETRIS.
ADCETRIS is contraindicated with concomitant bleomycin due to pulmonary toxicity (e.g., interstitial infiltration and/or inflammation).
Warnings and Precautions
In two uncontrolled single-arm trials of ADCETRIS as monotherapy in 160 patients with relapsed classical HL and sALCL, the most common adverse reactions (≥20%), regardless of causality, were: neutropenia, peripheral sensory neuropathy, fatigue, nausea, anemia, upper respiratory tract infection, diarrhea, pyrexia, rash, thrombocytopenia, cough and vomiting.
In a placebo-controlled trial of ADCETRIS in 329 patients with classical HL at high risk of relapse or progression post-auto-HSCT, the most common adverse reactions (≥20%) in the ADCETRIS-treatment arm (167 patients), regardless of causality, were: neutropenia, peripheral sensory neuropathy, thrombocytopenia, anemia, upper respiratory tract infection, fatigue, peripheral motor neuropathy, nausea, cough, and diarrhea.
Concomitant use of strong CYP3A4 inhibitors or inducers, or P-gp inhibitors, has the potential to affect the exposure to monomethyl auristatin E (MMAE).
Use in Specific Populations
MMAE exposure and adverse reactions are increased in patients with moderate or severe hepatic impairment or severe renal impairment. Avoid use.
Advise females of reproductive potential to avoid pregnancy during ADCETRIS treatment and for at least 6 months after the final dose of ADCETRIS.
Advise males with female sexual partners of reproductive potential to use effective contraception during ADCETRIS treatment and for at least 6 months after the final dose of ADCETRIS.
Advise patients to report pregnancy immediately and avoid breastfeeding while receiving ADCETRIS.
Certain of the statements made in this press release are forward
looking, such as those, among others, relating to the therapeutic
potential, and the possibility of market approval of ADCETRIS
(brentuximab vedotin) for uses including CTCL and other CD30-expressing
lymphomas for which ADCETRIS has not received regulatory approval.
Actual results or developments may differ materially from those
projected or implied in these forward-looking statements. Factors that
may cause such a difference include that the supplemental BLA submission
will not be sufficient to gain marketing approval in