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 second quarter ended June 30, 2022 and provided recent corporate updates.

“We are pleased with the progress of our wholly owned clinical oncology pipeline of Bicycle Toxin Conjugate, or BTC™, programs and Bicycle tumor-targeted immune cell agonist®, or Bicycle TICA™, programs,” said Kevin Lee, Ph.D., Chief Executive Officer of Bicycle Therapeutics. “In the second quarter, we initiated the expansion cohorts of our Phase I/II study of BT5528, and development of BT8009 and BT7480 remains on track as these programs advance in their respective clinical trials.”

“In addition, we were delighted to announce the second expansion of our immuno-oncology collaboration with Genentech last month, highlighting the potential of the platform beyond our BTCs and Bicycle TICAs,” Dr Lee continued. “We are pleased to have a strong balance sheet which helps support the advancement of our programs and which we anticipate provides a financial runway into 2025.”

Second Quarter 2022 and Recent Highlights

• Announced First Patient Dosed in the Expansion Cohorts of Phase I/II Trial of BT5528. In June 2022, Bicycle announced that the first patient was dosed in the expansion cohorts of the Phase I/II study of BT5528, Bicycle’s second-generation Bicycle Toxin Conjugate (BTC™) targeting EphA2. Up to 56 patients will be enrolled in the initial expansion cohorts, with the ability to further expand enrollment based on the results from these cohorts. Bicycle intends to provide completed results of the dose escalation portion of the clinical trial during the third quarter of 2022.
• Announced Expansion of Genentech Immuno-Oncology Collaboration. In July 2022, Bicycle announced that Genentech exercised an option to initiate a new program, expanding the exclusive strategic collaboration agreement with Bicycle to discover, develop and commercialize novel Bicycle®-based immuno-oncology therapies. This expansion represented the second option exercised by Genentech under the terms of the original February 2020 agreement and triggered a $10 million payment to Bicycle, which is expected to be received in the third quarter of 2022.
• Presented Trials in Progress Poster Featuring BT7480 Phase I/II Clinical Trial at the 2022 American Society of Clinical Oncology (ASCO) Annual Meeting. In June 2022, Bicycle presented a Trials in Progress poster highlighting the Phase I/II clinical trial of BT7480, a novel, fully synthetic Bicycle TICA™ targeting Nectin-4 and agonizing CD137.
• 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, 37 patients have been dosed in the Phase I/II trial of BT8009. A total of 12 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% overall response rate and 75% disease control rate. As of March 7, 2022, the median duration of response had 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.

Exploration of additional doses and frequencies continues, and Bicycle intends to provide further updates this year.

Financial Results

• Cash and cash equivalents were $372.8 million as of June 30, 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 $19.9 million for the three months ended June 30, 2022, compared to $11.7 million for the three months ended June 30, 2021. The increase in expense of $8.2 million was primarily due to increased clinical program expenses for BT5528 and BT8009, Bicycle TICA program development expenses, as well as increased personnel-related expenses, including $1.6 million of incremental non-cash share-based compensation expenses, and increased facilities-related expenses.
• General and administrative expenses were $11.8 million for the three months ended June 30, 2022, compared to $7.3 million for the three months ended June 30, 2021. The increase of $4.5 million for the three months ended June 30, 2022 as compared to the same period in the prior year was primarily due to an increase in personnel-related expenses, including $1.5 million of incremental non-cash share-based compensation expense, and an unfavorable effect of foreign exchange rates.
• Net loss was $26.8 million, or $(0.90) basic and diluted net loss per share, for the three months ended June 30, 2022, compared to net loss of $17.9 million, or $(0.74) basic and diluted net loss per share, for the three months ended June 30, 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 BT5528, BT8009 and BT7480; the anticipated 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; Bicycle’s plans to expand its discovery efforts and early development pipeline; and Bicycle’s expected financial 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, 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’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, are described in greater detail in the section entitled “Risk Factors” in Bicycle’s Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (SEC) on May 5, 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.