Bicycle Therapeutics plc (NASDAQ: BCYC), a biotechnology company pioneering a new and differentiated class of therapeutics based on its proprietary bicyclic peptide (Bicycle^®) technology, today reported financial results for the first quarter ended March 31, 2022 and provided recent corporate updates.

“We have made significant progress recently across our oncology pipeline,” said Kevin Lee, Ph.D., Chief Executive Officer of Bicycle Therapeutics. “We reported interim data for the Phase I portion of the Phase I/II trial in BT8009, showing an overall response rate, or ORR, of 50% in the 5mg/m² weekly cohort in patients with urothelial cancer and an encouraging tolerability profile. We believe BT8009 has the potential to offer clinically meaningful differentiation compared to currently available therapies and we look forward to advancing the program once the dose escalation phase is complete. We also look forward to initiating the BT5528 Phase II expansion cohorts soon.”

Dr. Lee continued: “Beyond our Bicycle Toxin Conjugates®, or BTCs, we continue to be encouraged as we progress our Bicycle TICA™ programs forward, including BT7480, which is advancing in the dose escalation portion of the Phase I clinical trial. Underscoring our efforts is a strong balance sheet and we anticipate our cash and cash equivalents will provide financial runway through 2024.”

First Quarter 2022 and Recent Highlights

• Announced Interim BT8009 Phase I Clinical Trial Results at the 2022 American Association for Cancer Research (AACR) Annual Meeting. In April 2022, Bicycle announced interim Phase I results from the Phase I/II trial of BT8009, a second-generation BTC™ targeting Nectin-4. As of March 7, 2022, thirty-seven patients have been dosed in the Phase I/II trial of BT8009. A total of twelve response evaluable urothelial cancer (UC) patients have been dosed in monotherapy cohorts of 2.5mg/m² and 5.0mg/m² weekly in the ongoing trial. Four response evaluable UC patients were dosed at 2.5mg/m² weekly, with one patient observed to have tumor reductions constituting a confirmed partial response (PR) and two patients observed to have stable disease (SD). Eight response evaluable UC patients were dosed at 5.0mg/m² weekly, with four patients observed to have a confirmed complete response (CR) or PR, including one patient with a CR and three patients with a PR, and two patients with SD, reflecting a 50% ORR and 75% disease control rate. The median duration of response has not yet been reached in either the 2.5 mg/m² or 5.0mg/m² cohort, with four of the five responders in these cohorts still on therapy after at least 24 weeks, and a tolerability profile that remains consistent with earlier results from this trial.
  
  Exploration of additional doses and frequencies continues, and Bicycle intends to provide further updates this year.

• Announced Updated Preclinical Data on SARS-CoV-2 Antivirals at the 2022 Microbiology Society Annual Meeting. Bicycle created a wide range of <10kDa molecules with high binding affinity to the SARS-CoV-2 spike protein and then tested them in partnership with researchers at the Medical Research Council Laboratory of Molecular Biology. They were shown to be highly active in vitro at preventing SARS-CoV-2 infection of human cells. These compounds were further tested in partnership with experts at the University of Liverpool and shown to be highly potent when administered in vivo to rodent models of SARS-CoV-2 infection. These molecules have also been shown to be active in vitro across many of the SARS-CoV-2 variant strains, including Alpha, Beta, Delta and Omicron.

Financial Results

• Cash and cash equivalents were $407.4 million as of March 31, 2022, compared to $438.7 million as of December 31, 2021. The decrease in cash is primarily due to cash used in operating activities.

• Research and development expenses were $14.3 million for the three months ended March 31, 2022, compared to $9.7 million for the three months ended March 31, 2021. The increase in expense of $4.6 million was primarily due to increased discovery and platform-related expenses, as well as increased personnel-related expenses, including $1.2 million of incremental non-cash share-based compensation expense.

• General and administrative expenses were $17.0 million for the three months ended March 31, 2022, compared to $8.1 million for the three months ended March 31, 2021. The increase of $8.9 million for the three months ended March 31, 2022 as compared to the same period in the prior year was primarily due to $5.2 million incremental non-cash share-based compensation expense, personnel-related costs and increased professional and consulting costs.

• Net loss was $27.6 million, or $(0.93) basic and diluted net loss per share, for the three months ended March 31, 2022, compared to net loss of $16.2 million, or $(0.73) basic and diluted net loss per share, for three months ended March 31, 2021.

About Bicycle Therapeutics

Bicycle Therapeutics (NASDAQ: BCYC) is a clinical-stage biopharmaceutical company developing a novel class of medicines, referred to as Bicycles, for diseases that are underserved by existing therapeutics. Bicycles are fully synthetic short peptides constrained with small molecule scaffolds to form two loops that stabilize their structural geometry. This constraint facilitates target binding with high affinity and selectivity, making Bicycles attractive candidates for drug development. Bicycle is evaluating BT5528, a second-generation Bicycle Toxin Conjugate (BTC™) targeting EphA2; BT8009, a second-generation BTC targeting Nectin-4, a well-validated tumor antigen; and BT7480, a Bicycle TICA™ targeting Nectin-4 and agonizing CD137, in company-sponsored Phase I/II trials. In addition, BT1718, a BTC that targets MT1-MMP, is being investigated in an ongoing Phase I/IIa clinical trial sponsored by the Cancer Research UK Centre for Drug Development. Bicycle is headquartered in Cambridge, UK, with many key functions and members of its leadership team located in Lexington, Massachusetts. For more information, visit bicycletherapeutics.com.

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 Bicycle’s anticipated advancement of its product candidates, including BT8009, BT5528 and BT7480; the anticipated design of, initiation of expansion cohorts in, dosing 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 expected cash runway. 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, and Bicycle’s ability 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 such as 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 not have satisfactory outcomes, and potential adverse effects arising from the testing or use of Bicycle’s product candidates; the risk that Bicycle may not realize the intended benefits of its technology; the risk that Bicycle’s projections regarding its expected financial runway are inaccurate or that its conduct of its business requires more cash than anticipated; and other important factors, any of which could cause Bicycle’s actual results to differ from those contained in the forward-looking statements, and which are described in greater detail in the section entitled “Risk Factors” in Bicycle’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC) on March 1, 2022, as well as in other filings Bicycle may make with the SEC in the future. Any forward-looking statements contained in this press release speak only as of the date hereof, and Bicycle expressly disclaims any obligation to update any forward-looking statements contained herein, whether because of any new information, future events, changed circumstances or otherwise, except as otherwise required by law.