CytoDyn Reports Continued Positive Clinical Data on its Phase 1b/2 mTNBC and Expanded Access Studies for MBC Ahead of Breakthrough Therapy Designation Decision From the FDA

Nachrichtenquelle: globenewswire
14.02.2020, 12:00  |  507   |   |   

VANCOUVER, Washington, Feb. 14, 2020 (GLOBE NEWSWIRE) -- CytoDyn Inc. (OTC.QB: CYDY), (“CytoDyn” or the “Company"), a late-stage biotechnology company developing leronlimab (PRO 140), a CCR5 antagonist with the potential for multiple therapeutic indications, announced today continued positive data for its mTNBC and MBC patients.

Metastatic triple-negative breast cancer (mTNBC), an aggressive histological subtype, has a poor prognosis. In addition, metastatic breast cancer (MBC) is breast cancer that has spread beyond the breast and lymph nodes to other organs in the body (typically the bones, liver, lungs, or brain). Both types of cancer pose significant challenges for patients due to their aggressiveness and limited treatment options. An integral part of CytoDyn’s mission and purpose is to provide effective therapeutic solutions to these patients. Results of the first five patients are as follows:

Patient #1: Enrolled in mTNBC Phase 1b/2 - Injected on 9/27/2019. CTC (circulating tumor cells) dropped to zero in two weeks on 10/11/2019. Total CTC and EMT (Epithelial Mesenchymal Transition in Tumor Metastasis) dropped to zero after about one month of treatment with leronlimab (once-a-week 350 mg dose). After approximately four months of treatment with leronlimab and Carboplatin, the patient had zero CTC+EMT. Furthermore, the patient’s CT scan indicated a 20% tumor shrinkage within the first few weeks of treatment with leronlimab.

Patient #2: Enrolled in single IND. Patient is MBC with HER2+ stage 4 metastasis to lung, liver, and brain. Patient’s radiologist cancelled 2nd round of treatment due to leronlimab’s effect on shrinking the largest tumor in the brain by 56% and other lesions being stable. Leronlimab has, and continues to be, the only treatment in place since the measurement of brain tumor shrinkage was initiated. Patient was permitted to obtain CTC+EMT test results. After 10 weeks of treatment with leronlimab, this patient’s CTC+EMT results were zero (results reported on 2/12/2020).

Patient #3: Enrolled on 1/3/2020. This patient’s CAML counts went down from 45 to 30. CTC+EMT are stable and there has been no change in the total number.

Patient #4: Enrolled on 1/7/2020. This patient’s total CTC+EMT dropped by 75% in the first two weeks of treatment with leronlimab.

Patient #5: Enrolled on 2/4/2020. This patient’s CTC+EMT have been recorded upon enrollment and the first results are expected on 2/25/2020.

In addition to the first five patients, enrollment and treatment updates in CytoDyn’s Phase 2 protocol basket trial under its cancer IND are as follows:

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