Data from the innovaTV 207 global phase 2 trial to be presented at the American Society for Radiation Oncology (ASTRO) 2022 Multidisciplinary Head and Neck Cancers Symposium

COPENHAGEN, Denmark & BOTHELL, WA, USA I February 24, 2022 IGenmab A/S (Nasdaq: GMAB) and Seagen Inc. (Nasdaq: SGEN) will present preliminary data from the innovaTV 207 global, open-label, multicenter phase 2 trial of tisotumab vedotin (TIVDAK®) as a monotherapy in patients with squamous cell carcinoma of the head and neck (SCCHN) who experienced disease progression on or after a first-line platinum-containing regimen and a checkpoint inhibitor. Early results showed tisotumab vedotin demonstrated a manageable safety profile and promising preliminary antitumor activity in this patient population with the primary endpoint of confirmed objective response rate (ORR) per investigator, achieved by 16 percent of patients (95% CI: 5.5 to 33.7). Findings will be presented as part of a plenary session at the American Society for Radiation Oncology (ASTRO) 2022 Multidisciplinary Head and Neck Cancers Symposium on February 25.

“There is a significant unmet need for additional treatment options for patients diagnosed with squamous cell carcinoma of the head and neck that has progressed despite the use of chemotherapy,” said David S. Hong, M.D., deputy chair of Investigational Cancer Therapeutics at The University of Texas MD Anderson Cancer Center and lead investigator of the innovaTV 207 clinical trial. “These preliminary data provide important insight into the safety of tisotumab vedotin in this tumor type and demonstrate the value of exploring this potential use further in the innovaTV 207 trial.”

The SCCHN cohort of the innovaTV 207 trial enrolled 31 patients with a median age of 65 (range 47 to 78) years whose disease progressed on or after systemic therapy. Patients received 2 milligrams (mg)/kilogram (kg) tisotumab vedotin (maximum dose: 200 mg per infusion) intravenously on day one of each 21-day cycle. The secondary endpoints included disease control rate (DCR), progression-free survival (PFS) per investigator and overall survival (OS). DCR per investigator was 58.1 percent (95% CI: 39.1 to 75.5), median PFS was 4.2 months (95% CI: 2.7 to 4.8), median follow-up was 10.0 months (95% CI: 8.5 to 13.1) and median OS was 9.4 months (95% CI: 8.1 to 11.8). Adverse events were consistent with the known safety profile of tisotumab vedotin: twenty-one (67.7%) patients developed Grade ≥3 treatment-emergent adverse events (TEAEs); most commonly (≥10% of patients) anemia (16.1%), pneumonia (12.9%), and dyspnea (12.9%). Incidence of treatment-emergent serious adverse events (SAEs) was 51.6%, and incidence of treatment-related SAEs was 6.5% (grade 3 hemoptysis [n=1] and grade 3 post-procedural hemorrhage [n=1]).

See TIVDAK U.S. Important Safety Information, including Boxed Warning, below.

“We recognize the high medical need for additional treatment options for patients with head and neck cancers,” said Jan van de Winkel, Ph.D., Chief Executive Officer, Genmab. “These initial data results are encouraging and underscore the importance of our ongoing clinical trial program that will assess the potential utility of tisotumab vedotin in various cancers.”

For more information about the ongoing phase 2 innovaTV 207 clinical trial of tisotumab vedotin, please visit (Identifier: NCT03485209).

“The presentation of these preliminary data represents another step forward in our work to advance the tisotumab vedotin development program,” said Roger Dansey, M.D., Chief Medical Officer, Seagen. “In partnership with Genmab, we will continue to recruit additional patients for trials to further investigate tisotumab vedotin in patients with squamous cell carcinoma of the head and neck, including its potential use as a combination therapy.”

About the innovaTV 207 Trial
The phase 2 innovaTV 207 clinical trial evaluates the activity, safety, and tolerability of tisotumab vedotin in selected solid tumors with high tissue factor (TF) expression. The trial is a global, multicenter, open label basket trial which will enroll an estimated 532 adult patients with relapsed, locally-advanced or metastatic disease in separate tumor-specific cohorts. The primary endpoint of the trial is confirmed ORR per investigator, defined as the proportion of patients who achieve a confirmed complete or partial response. Key secondary endpoints include confirmed and unconfirmed ORR, DCR, duration of response, PFS, OS, safety and tolerability. For more information about the phase 2 innovaTV 207 clinical trial of tisotumab vedotin, please visit (Identifier: NCT03485209).

About Tisotumab Vedotin
Tisotumab vedotin-tftv (TIVDAK®) is an antibody-drug conjugate (ADC) composed of Genmab’s human monoclonal antibody directed to tissue factor (TF) and Seagen’s ADC technology that utilizes a protease-cleavable linker that covalently attaches the microtubule-disrupting agent monomethyl auristatin E (MMAE) to the antibody. Nonclinical data suggests that the anticancer activity of tisotumab vedotin is due to the binding of the ADC to TF expressing cancer cells, followed by internalization of the ADC-TF complex, and release of MMAE via proteolytic cleavage. MMAE disrupts the microtubule network of actively dividing cells, leading to cell cycle arrest and apoptotic cell death. In vitro, tisotumab vedotin also mediates antibody-dependent cellular phagocytosis and antibody-dependent cellular cytotoxicity.

In September 2021, the U.S. Food and Drug Administration granted accelerated approval for tisotumab vedotin (TIVDAK) in patients with previously treated recurrent or metastatic cervical cancer. TIVDAK is the first and only approved ADC for the treatment of adult patients with recurrent or metastatic cervical cancer with disease progression on or after chemotherapy.

TIVDAK is indicated for the treatment of adult patients with recurrent or metastatic cervical cancer with disease progression on or after chemotherapy.

This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

Please see full prescribing information, including BOXED WARNING for TIVDAK here.

About Genmab
Genmab is an international biotechnology company with a core purpose to improve the lives of people with cancer. For more than 20 years, Genmab’s vision to transform cancer treatment has driven its passionate, innovative and collaborative teams to invent next-generation antibody technology platforms and leverage translational research and data sciences, fueling multiple differentiated cancer treatments that make an impact on people’s lives. To develop and deliver novel therapies to patients, Genmab has formed 20+ strategic partnerships with biotechnology and pharmaceutical companies. Genmab’s proprietary pipeline includes bispecific T-cell engagers, next-generation immune checkpoint modulators, effector function enhanced antibodies and antibody-drug conjugates.

Genmab is headquartered in Copenhagen, Denmark with locations in Utrecht, the Netherlands, Princeton, New Jersey, U.S. and Tokyo, Japan. For more information, please visit and follow us on

About Seagen
Seagen is a global biotechnology company that discovers, develops, and commercializes transformative cancer medicines to make a meaningful difference in people’s lives. Seagen is headquartered in the Seattle, Washington area, and has locations in California, Canada, Switzerland, and the European Union. For more information on the company’s marketed products and robust pipeline, visit and follow @SeagenGlobal on Twitter.

About the Genmab and Seagen Collaboration
Tisotumab vedotin is being co-developed by Genmab and Seagen, under an agreement in which the companies share costs and profits for the product on a 50:50 basis.

SOURCE: Genmab