The 10K 9/22/22 filing reports all of the clinical/development status of the company. Here is the complete section of CYDY's Leronlimab Cancer -- there is NO reference to MD Anderson or LL/Keytruda combo research:
"Leronlimab and Cancer
Research indicates that the CCR5 receptor is a potential “GPS” system of a cancer cell that promotes metastatic disease. Pre-clinical studies have shown that leronlimab blocks the calcium channel signaling of the CCR5 receptor and has the potential to disable this GPS system. CCR5 inhibition may disrupt signaling and ultimately the spread of CCR5+ Circulating Tumor Cells (“CTCs”). Most current therapies are directed to the primary tumor rather than the movement or spread of cancer in the bloodstream. It is metastatic disease and not the primary tumor that is the cause of death in most cancer patients.
Research has shown that most sampled breast cancer patients in certain studies had increased CCR5 expression in their tumors. Increased CCR5 expression is an indicator of disease status in several cancers. Research has shown multiple key properties of the CCR5’s role in cancer. The first is that the CCR5 receptor on cancer cells potentially plays a role in the migration and invasion of cells into the bloodstream, which may lead to metastasis of breast, prostate, and colon cancer. The second is that blocking the CCR5 receptor on Tregs also turns on anti-tumor fighting properties restoring immune function. The third key finding is that blockage of the CCR5/CCL5 interaction had a synergistic effect with chemotherapy and controlled cancer progression. Chemotherapy traditionally increased expression of CCR5, so blocking CCR5 is expected to reduce the levels of invasion and metastasis. Fourth, animal studies revealed a significant decrease in angiogenesis following administration of leronlimab. Lastly, we are currently studying the effect of leronlimab on macrophage repolarization due to macrophage plasticity.
In late November 2018, we received FDA approval of our IND submission and subsequently initiated a Phase 1b/2 clinical trial for metastatic Triple-Negative Breast Cancer (“mTNBC”) patients. We reported that our pre-clinical research with leronlimab reduced the incidence of human breast cancer metastasis in a mouse xenograft model for cancer through six weeks with leronlimab by more than 98%. The temporal equivalency of this six-week study in mice may be up to six years in humans. In May 2019, the FDA granted Fast Track designation for leronlimab for use in combination with carboplatin to treat patients with CCR5-positive mTNBC. We have conducted the following trials:
Phase 2 Trial for Triple-Negative Breast Cancer
This trial evaluated the feasibility of leronlimab in combination with carboplatin in patients with CCR5+ mTNBC. This trial advanced from a Phase 1b/2 to Phase 2. The Phase 2 trial was a single arm study with 30 patients to test the hypothesis that the combination of carboplatin intravenously and maximum tolerated dose of leronlimab subcutaneously will increase progression free survival. The change in CTCs was evaluated every 21 days during treatment and will be used as an initial prognostic marker for efficacy. The first patient was treated in September 2019. Leronlimab, in combination with carboplatin was well-tolerated at all three dose levels of 350mg, 525mg, and 700mg. Leronlimab showed early signs of anti-tumor activity in patients with CCR5+ mTNBC.
Compassionate Use Study of Leronlimab in Triple Negative Breast Cancer
This was a single-arm, compassionate use study with 30 patients for leronlimab combined with a treatment of Physician’s Choice (“TPC”) in patients with CCR5+ mTNBC. Leronlimab was administered subcutaneously as a weekly dose of 350 mg until disease progression or intolerable toxicity. Based on our success in the Phase 1b/2 mTNBC trial with 350 mg dose, we were able to transition the compassionate use patients to 525 mg dose. TPC is defined as one of the following single-agent chemotherapy drugs administrated according to local practice: eribulin, gemcitabine, capecitabine, paclitaxel, nab-paclitaxel, vinorelbine, ixabepilone, or carboplatin. In this study, patients were evaluated for tumor response approximately every three (3) months or according to the institution’s standard practice by CT, PET/CT or MRI with contrast (per treating investigator’s discretion) using the same method as at baseline. This trial is no longer active.
Emergency IND Use Study of Leronlimab in Breast Cancer
One patient was administered leronlimab with stage 4 HER2+ breast cancer with metastasis to liver, lung, and brain. The patient received her first dose in November 2019 and remained on study drug until spring 2022.
Basket Trial for CCR5+ Locally Advanced or Metastatic Solid Tumors
This was a single arm phase 2 study of leronlimab in patients with CCR5+ locally advanced or metastatic solid tumors. Leronlimab was administered subcutaneously as a weekly dose of 350 mg and 525 mg until disease progression or intolerable toxicity. Subjects participating in this study were also allowed to receive/continue standard-of-care chemotherapy or radiotherapy. In this study, patients were evaluated for tumor response approximately every three months or according to the institution's standard practice by CT, PET/CT or MRI with contrast using the same method as at baseline. This trial is no longer active."
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