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Adverum Biotechnologies reports additional data from Phase 1 trial of ADVM-022

Adverum Biotechnologies (ADVM) announced additional clinical data for the first cohort of patients in the ongoing OPTIC phase 1 clinical trial of ADVM-022, the company’s intravitreal injection gene therapy, in treatment-experienced patients with wet age-related macular degeneration.

Adverum Biotechnologies reports additional data from Phase 1 trial of ADVM-022 in patients with wet age-related macular degeneration, Stockwinners

Adverum also announced enrollment plans for the third and fourth cohorts in the ongoing OPTIC trial.

The third cohort has been initiated and patients will be treated with ADVM-022 at a dose of 2 x 10^11 vg/eye, the same dose used in the second cohort.

Subsequently, patients in the fourth cohort will be treated with ADVM-022 at a dose of 6×10^11 vg/eye, the same dose used in the first cohort.

Since inflammation has generally been mild and responsive to steroid eye drops, patients in the third and fourth cohorts will receive prophylactic steroid eye drops instead of prophylactic oral steroids.

Previously, on September 12, 2019, Adverum presented data from the first cohort in the ongoing OPTIC trial at a pre-specified 24-week time point.

Wet and Dry Macular Degeneration, Stockwinners

The additional data for this cohort includes key outcomes with a median follow-up of 34 weeks.

In treatment-experienced patients previously requiring frequent anti-VEGF injections to maintain vision, the data continue to demonstrate that the single ADVM-022 injection in this cohort was sufficient to maintain vision, with zero rescue injections required for any of the six patients.

Aaron Osborne, MBBS, chief medical officer of Adverum, added, “The clinical profile of ADVM-022 demonstrates this gene therapy’s potential to be a significant advance for patients with wet AMD. It is very encouraging that there continues to be zero rescue injections in this cohort of treatment-experienced patients with more than 6 months follow-up on all patients. We are expanding the development of ADVM-022 and are excited to share that enrollment is now open for the third cohort in OPTIC.

We look forward to being able to deliver this novel intravitreal gene therapy candidate as soon as possible to patients with wet AMD and diabetic retinopathy, our second indication for ADVM-022. We are grateful for all of the investigators, patients, and caregivers who continue to participate in the OPTIC trial.”

Adverum plans to begin dosing patients in the third cohort of the OPTIC trial in the fourth quarter of 2019 and plans to begin enrollment in the fourth cohort in the first quarter of 2020.

Adverum plans to present 52-week data from the first cohort of patients in the OPTIC trial as well as 24-week data from the second cohort of patients in the first half of 2020.

Adverum plans to submit an investigational new drug application for the treatment of ADVM-022 in diabetic retinopathy in the first half of 2020.

Piper Jaffray

Commenting on Adverum Biotechnologies update at AAO, Piper Jaffray analyst Tyler Van Buren notes that zero rescue injections have been required and disease activity by OCT and visual acuity has been maintained with 6 ADVM-022 patients now out to a median of 34 weeks.

Importantly, despite the intense criticism over inflammation and visual acuity fluctuations during the initial data disclosure last month, numerous KOLs at the conference were unconcerned and believe that ADVM-022 looks like a potential treatment option so far, he contends.

Overall, the analyst argues that safety continues to be clean in these initial patients and looks forward to the 52-week update in first half of 2020.

Van Buren reiterates an Overweight rating and $14 price target on the shares as ADVM-022 continues to look like a viable gene therapy candidate for wet AMD, which has $1B-plus potential.

ADVM closed at $5.29.

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Advaxis jumps on its prostate cancer drug data

Advaxis says ADXS-PSA in combination with KEYTRUDA prolonged survival in mCRPC

Advaxis jumps on its prostate cancer drug data, Stockwinners

Advaxis (ADXS) announced updated data from the Phase 1/2 KEYNOTE-046 study in metastatic, castration-resistant prostate cancer.

Castrate-resistant prostate cancer refers to prostate cancer that keeps growing even when the amount of testosterone in the body is reduced to very low levels. Many early-stage prostate cancers need normal levels of testosterone to grow, but castrate-resistant prostate cancers do not. 

Androgens are required for normal growth and function of the prostate. Androgens are also necessary for prostate cancers to grow. Androgens promote the growth of both normal and cancerous prostate cells by binding to and activating the androgen receptor, a protein that is expressed in prostate cells Once activated, the androgen receptor stimulates the expression of specific genes that cause prostate cells to grow .

Early in their development, prostate cancers need relatively high levels of androgens to grow. Such prostate cancers are called castration sensitive, androgen dependent, or androgen sensitive because treatments that decrease androgen levels or block androgen activity can inhibit their growth.

This trial is being conducted in conjunction with Merck (MRK) and is evaluating ADXS-PSA, one of Advaxis’ Listeria monocytogenes-based immunotherapies, alone and in combination with KEYTRUDA, Merck’s anti-PD-1 therapy.

Findings will be highlighted in a poster discussion entitled “Effects of ADXS-PSA with or without Pembrolizumab on Survival and Antigen Spreading in Metastatic, Castration-Resistant Prostate Cancer Patients” at the American Association for Cancer Research Annual Meeting underway in Atlanta.

KEYNOTE-046 is an open-label, multicenter, dose-determining safety and tolerability Phase 1/2 trial of 50 heavily pretreated patients conducted in two parts, with a Phase 2 expansion cohort. The objective of the study is to evaluate ADXS-PSA alone and in combination with KEYTRUDA for primary endpoints that include safety, tolerability and dosing.

Secondary endpoints include anti-tumor activity and progression-free survival, and exploratory endpoints include associations between biomarkers of immunologic response with clinical outcomes.

Key findings from the combination arm of KEYNOTE-046 include the following: The majority of treatment-related adverse events consisted of transient and reversible Grade 1-2 chills/rigors, fever, hypotension, nausea and fatigue.

The combination of ADXS-PSA and pembrolizumab has been well-tolerated, to date, with no additive toxicity observed. Median overall survival was 21.1 months at data cutoff in this dataset of 37 patients.

Correlative immune analyses showed T-cell responses against PSA in 75% of subjects and antigen spreading in 85% of subjects. Broader immune stimulation, including B-cell activation, was observed in the combination arm than in the ADXS-PSA monotherapy arm.

ADXS closed at $5.91, it last traded at $8.15. MRK closed at $83.17.

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This article does not constitute investment advice. Each reader is encouraged to consult with his or her individual financial professional and any action a reader takes as a result of information presented here is his or her own responsibility.