On January 29, 2020 Verastem, Inc. (Nasdaq: VSTM), (Verastem Oncology or the Company), a biopharmaceutical company focused on developing and commercializing medicines seeking to improve the survival and quality of life of cancer patients, reported that its partner CSPC Pharmaceutical Group Limited (HKEx: 1093) (CSPC), a leading pharmaceutical company in China, has dosed the first patient in a pivotal Chinese bridging study evaluating COPIKTRA (duvelisib) in patients with relapsed or refractory follicular lymphoma (FL) (Press release, Verastem, JAN 29, 2020, View Source [SID1234553657]). COPIKTRA is an oral inhibitor of phosphoinositide 3-kinase (PI3K), and the first approved dual inhibitor of PI3K-delta and PI3K-gamma in the United States.

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"Building on CSPC’s strong track record of successfully developing and commercializing oncology products in China, we are pleased that this CSPC trial is now underway as they work to provide a new option for patients with follicular lymphoma in China, where there are limited options for this difficult to treat disease," said Brian Stuglik, Chief Executive Officer of Verastem Oncology. "The first patient dosed in this trial is a critical step in our mission to bring COPIKTRA to patients around the world."

In September of 2018, Verastem Oncology and CSPC entered into an exclusive licensing agreement for CSPC to develop and commercialize Verastem Oncology’s COPIKTRA for the treatment of all oncology indications in China. CSPC’s single-arm, open-label, multi-center pivotal study is designed to evaluate the antitumor activity and safety of duvelisib administered to patients diagnosed with relapsed or refractory follicular lymphoma. This study is expected to serve as a bridging study based on the efficacy and safety observed in Verastem Oncology’s Phase 2 DYNAMO study. The results of this study will form the basis of a regulatory submission for COPIKTRA for the treatment of relapsed or refractory FL in China.

COPIKTRA was approved in September 2018 by the U.S. Food and Drug Administration (FDA) for the treatment of adult patients with relapsed or refractory chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) after at least two prior therapies. COPIKTRA also received accelerated approval for the treatment of adult patients with relapsed or refractory follicular lymphoma (FL) after at least two prior systemic therapies. Continued approval in FL may be contingent upon verification and description of clinical benefit in confirmatory trials.

About COPIKTRA (duvelisib)

COPIKTRA is an oral inhibitor of phosphoinositide 3-kinase (PI3K), and the first approved dual inhibitor of PI3K-delta and PI3K-gamma, two enzymes known to help support the growth and survival of malignant B-cells, in the United States. PI3K signaling may lead to the proliferation of malignant B-cells and is thought to play a role in the formation and maintenance of the supportive tumor microenvironment.1,2,3 COPIKTRA is indicated in the United States for the treatment of adult patients with relapsed or refractory chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) after at least two prior therapies and relapsed or refractory follicular lymphoma (FL) after at least two prior systemic therapies. COPIKTRA is also being developed by Verastem Oncology for the treatment of peripheral T-cell lymphoma (PTCL), for which it has received Fast Track status in the United States, and is being investigated in combination with other agents through investigator-sponsored studies.4 For more information on COPIKTRA, please visit www.COPIKTRA.com. Information about duvelisib clinical trials can be found on www.clinicaltrials.gov.

SELECT IMPORTANT SAFETY INFORMATION

This does not include all information needed to use COPIKTRA (duvelisib) safety and effectively. See full Prescribing Information.

WARNING: FATAL AND SERIOUS TOXICITIES: INFECTIONS, DIARRHEA OR COLITIS, CUTANEOUS REACTIONS, and PNEUMONITIS

See full Prescribing Information for complete boxed warning

Fatal and/or serious infections occurred in 31% (4% fatal) of COPIKTRA-treated patients. Monitor for signs and symptoms of infection. Withhold COPIKTRA if infection is suspected.
Fatal and/or serious diarrhea or colitis occurred in 18% (<1% fatal) of COPIKTRA-treated patients. Monitor for the development of severe diarrhea or colitis. Withhold COPIKTRA.
Fatal and/or serious cutaneous reactions occurred in 5% (<1% fatal) of COPIKTRA-treated patients. Withhold COPIKTRA.
Fatal and/or serious pneumonitis occurred in 5% (<1% fatal) of COPIKTRA-treated patients. Monitor for pulmonary symptoms and interstitial infiltrates. Withhold COPIKTRA.
INDICATIONS AND USAGE

COPIKTRA is a kinase inhibitor indicated for the treatment of adult patients with:

Relapsed or refractory chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) after at least two prior therapies.
Relapsed or refractory follicular lymphoma (FL) after at least two prior systemic therapies. Accelerated approval based on overall response rate and continued approval may be contingent upon confirmatory trials.
WARNINGS AND PRECAUTIONS

Hepatotoxicity: Monitor hepatic function.
Neutropenia: Monitor blood counts.
Embryo-Fetal toxicity: COPIKTRA can cause fetal harm. Advise patients of potential risk to a fetus and to use effective contraception.
ADVERSE REACTIONS

The most common adverse reactions (≥20%) are diarrhea or colitis, neutropenia, rash, fatigue, pyrexia, cough, nausea, upper respiratory infection, pneumonia, musculoskeletal pain, and anemia.

To report Adverse Reactions, contact FDA at 1-800-FDA-1088 (1-800-332-1088) or www.fda.gov/medwatch and Verastem Oncology at 1-877-7RXVSTM (1-877-779-8786).

DRUG INTERACTIONS

CYP3A inducers: Avoid co-administration with strong CYP3A inducers.
CYP3A inhibitors: Monitor for COPIKTRA toxicities when co-administered with strong or moderate CYP3A inhibitors. Reduce COPIKTRA dose to 15 mg twice daily when co-administered with strong CYP3A4 inhibitors.
CYP3A substrates: Monitor for signs of toxicities when co-administering COPIKTRA with sensitive CYP3A substrates.