Thanks N2In,
“ This is a good point. If enough docs agree to use leronlimab for EIND and maybe Right to Try. Maybe FDA will let these patients start at 700 mg and let them check PDL-1 within 3 months if doc and patient request it since it is outside of trial protocol.”
But I didn’t come up with it. From recent Letter to Shareholders…please read to end…
“ One indication that carries the potential for significant value return is leronlimab in mTNBC, the most aggressive form of breast cancer, with 5-year survival rates around 15%. Based on the positive data presented at ESMO, we will shortly submit a follow-up Phase II proof of concept (POC) protocol for PD-L1-negative patients with mTNBC. These patients, currently ineligible for ICI therapy, will receive leronlimab plus standard chemotherapy, followed by a regimen of leronlimab with an ICI. We look forward to sharing more details after the FDA review of the protocol and briefing package that provides a complete summary of CytoDyn’s oncology data.
In parallel, we will be submitting an Expanded Access Protocol (“EAP”) to enable treatment for patients with second-line, or later, mTNBC, who are ineligible or otherwise unable to participate in our Phase II study. I am pleased to announce that we will be working with an individual benefactor to fund the launch of this compassionate-use program. This benefactor has also expressed interest in supporting an investigator-initiated study in patients with recurrent glioblastoma with an anticipated start date in 2026.
Beyond breast cancer, leronlimab continues to advance in the treatment of metastatic Colorectal Cancer (mCRC). Enrollment in our Phase II study is underway with five sites initiated and several more onboarding in the next several weeks. The enrollment of our fifth patient in the trial will trigger the Data Safety Monitoring Board (DSMB) safety review, which could then open study randomization to include the 700 mg dose. Importantly, we will be closely tracking PD-L1 levels of enrolled patients to further validate our MOA across solid tumors. With that in mind, we have prepared a rollover protocol to ensure that CRC patients who remain stable can continue leronlimab treatment beyond 48 weeks and to allow patients with disease progression the opportunity to receive leronlimab at a dose of 700 mg in combination with an ICI.
Finally, I am happy to share a very promising announcement as it relates to a patient who prospectively upregulated PD-L1 after having obtained access to leronlimab through an eIND application submitted by her treating physician. In early 2025, we received a compassionate access request for a patient with mTNBC who was previously unresponsive to treatment with Keytruda. This particular patient had two prior tissue biopsies, both of which were PD-L1 negative. In April, the patient started treatment with leronlimab, and in July blood tests confirmed an increase in PD-L1 levels. Our past clinical observations have shown that upregulating PD-L1 is the first step towards prolonged survival in this patient population and we are encouraged by this readout, which supports our working theory. This is the first of hopefully many PD-L1 upregulation readouts across our CRC and TNBC trial(s) in the coming year. I continue to have high hopes for our upcoming Phase II trials, as well as our expanded access program, as we look to reshape treatment paradigms in solid tumor oncology.”
“ This is a good point. If enough docs agree to use leronlimab for EIND and maybe Right to Try. Maybe FDA will let these patients start at 700 mg and let them check PDL-1 within 3 months if doc and patient request it since it is outside of trial protocol.”
But I didn’t come up with it. From recent Letter to Shareholders…please read to end…
“ One indication that carries the potential for significant value return is leronlimab in mTNBC, the most aggressive form of breast cancer, with 5-year survival rates around 15%. Based on the positive data presented at ESMO, we will shortly submit a follow-up Phase II proof of concept (POC) protocol for PD-L1-negative patients with mTNBC. These patients, currently ineligible for ICI therapy, will receive leronlimab plus standard chemotherapy, followed by a regimen of leronlimab with an ICI. We look forward to sharing more details after the FDA review of the protocol and briefing package that provides a complete summary of CytoDyn’s oncology data.
In parallel, we will be submitting an Expanded Access Protocol (“EAP”) to enable treatment for patients with second-line, or later, mTNBC, who are ineligible or otherwise unable to participate in our Phase II study. I am pleased to announce that we will be working with an individual benefactor to fund the launch of this compassionate-use program. This benefactor has also expressed interest in supporting an investigator-initiated study in patients with recurrent glioblastoma with an anticipated start date in 2026.
Beyond breast cancer, leronlimab continues to advance in the treatment of metastatic Colorectal Cancer (mCRC). Enrollment in our Phase II study is underway with five sites initiated and several more onboarding in the next several weeks. The enrollment of our fifth patient in the trial will trigger the Data Safety Monitoring Board (DSMB) safety review, which could then open study randomization to include the 700 mg dose. Importantly, we will be closely tracking PD-L1 levels of enrolled patients to further validate our MOA across solid tumors. With that in mind, we have prepared a rollover protocol to ensure that CRC patients who remain stable can continue leronlimab treatment beyond 48 weeks and to allow patients with disease progression the opportunity to receive leronlimab at a dose of 700 mg in combination with an ICI.
Finally, I am happy to share a very promising announcement as it relates to a patient who prospectively upregulated PD-L1 after having obtained access to leronlimab through an eIND application submitted by her treating physician. In early 2025, we received a compassionate access request for a patient with mTNBC who was previously unresponsive to treatment with Keytruda. This particular patient had two prior tissue biopsies, both of which were PD-L1 negative. In April, the patient started treatment with leronlimab, and in July blood tests confirmed an increase in PD-L1 levels. Our past clinical observations have shown that upregulating PD-L1 is the first step towards prolonged survival in this patient population and we are encouraged by this readout, which supports our working theory. This is the first of hopefully many PD-L1 upregulation readouts across our CRC and TNBC trial(s) in the coming year. I continue to have high hopes for our upcoming Phase II trials, as well as our expanded access program, as we look to reshape treatment paradigms in solid tumor oncology.”
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