“Last quarter, we reported interim clinical results from ongoing trials of two of our Bicycle toxin conjugates, BT8009 and BT5528, demonstrating preliminary anti-tumor activity in two tumor types, and announced the first patient dosed in the Phase I clinical trial of BT7480, our first tumor-targeted immune cell agonist to enter the clinic. In our trial of BT8009, we are pleased to confirm the preliminary activity and see that these patients remain on trial. We look forward to presenting interim BT8009 Phase I results at a medical meeting and initiating the BT5528 expansion cohorts this year,” said
Bicycle Toxin Conjugates® (BTCs) BT8009 and BT5528
In the ongoing Phase I portion of the Phase I/II clinical trial of BT8009, a second-generation BTC™ targeting Nectin-4, four out of 11 patients were previously reported to have a partial response under Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1, including one out of four (25%) in the 2.5mg/m2 dose and three out of seven (43%) at the 5.0 mg/m2 cohorts. All four patients previously reported as responders have since received at least one subsequent scan, and all have been confirmed as ongoing RECIST 1.1 responses. One patient in the 5.0 mg/m2 cohort, who previously was reported to have a partial response with an 89% tumor reduction, has now received two subsequent scans, which each showed that total tumor volume has been reduced by 100%, constituting a confirmed complete response. All four patients previously reported to have a RECIST 1.1 clinical response remain on therapy. The tolerability profile of the 2.5mg/m2 and 5.0 mg/m2 cohorts remains consistent with that previously reported.
Dose escalation in the BT8009 Phase I trial remains ongoing, with patients currently being dosed at 7.5mg/m2 weekly or every-other-week. Bicycle intends to present interim Phase I results from the ongoing clinical trial at a medical meeting this year.
The Phase I/II trial of BT5528, Bicycle’s second-generation BTC targeting EphA2, is also ongoing, with plans remaining on track to initiate the expansion cohorts this year, with an expected recommended Phase II dose of 6.5mg/m2 every-other-week.
Bicycle tumor-targeted immune cell agonist™ (Bicycle TICA™) BT7480
Bicycle also initiated a Phase I clinical trial of BT7480, a novel, fully synthetic Bicycle TICA targeting Nectin-4 and agonizing CD137, in the fourth quarter of 2021, and dose escalation in that trial remains ongoing. BT7480 and other Bicycle TICAs, including a novel NK-cell-engaging molecule, were the subjects of four posters at SITC in
Management Team Updates
Bicycle is also announcing the expansion of and transition in its management team.
“We are delighted to announce our recent management team appointments, with
Forward Looking Statements
This press release may contain forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These statements may be identified by words such as “aims,” “anticipates,” “believes,” “could,” “estimates,” “expects,” “forecasts,” “goal,” “intends,” “may,” “plans,” “possible,” “potential,” “seeks,” “will” and variations of these words or similar expressions that are intended to identify forward-looking statements, although not all forward-looking statements contain these words. Forward-looking statements in this press release include, but are not limited to, statements regarding the discovery, development and potential commercialization of potential product candidates using Bicycle’s technology; Bicycle’s anticipated advancement of its product candidates, including BT5528, BT8009 and BT7480; the advancement of Bicycle’s product candidate pipeline; anticipated design of, initiation of expansion cohorts in and progression of Bicycle’s clinical trials; the availability of data from clinical trials; the therapeutic potential for Bicycles in oncology and other applications; and Bicycle’s ability to accelerate its product pipeline and identify potentially innovative applications of its technology beyond oncology. Bicycle may not actually achieve the plans, intentions or expectations disclosed in these forward-looking statements, and you should not place undue reliance on these forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in these forward-looking statements as a result of various factors, including: risks to clinical trial site initiation, patient enrollment and follow-up, as well as to Bicycle’s abilities to meet other anticipated deadlines and milestones, presented by the ongoing COVID-19 pandemic; uncertainties inherent in the initiation and completion of clinical trials and clinical development of Bicycle’s product candidates; the risk that Bicycle may not realize the intended benefits of its technology; availability and timing of results from clinical trials; whether the outcomes of preclinical studies will be predictive of clinical trial results; whether initial or interim results from a clinical trial will be predictive of the final results of the trial or the results of future trials; the risk that trials may be delayed and may not have satisfactory outcomes; potential adverse effects arising from the testing or use of Bicycle’s product candidates; the risk that Bicycle may not be able to identify additional product candidates or additional applications of its technology; and other important factors, any of which could cause Bicycle’s actual results to differ from those contained in the forward-looking statements, are described in greater detail in the section entitled “Risk Factors” in Bicycle’s Quarterly Report on Form 10-Q filed with the
VP, Capital Markets & Investor Relations