BT5528
/ Bicycle Therap
- LARVOL DELTA
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November 18, 2025
Study BT5528-100 in Patients With Advanced Solid Tumors Associated With EphA2 Expression
(clinicaltrials.gov)
- P1/2 | N=288 | Active, not recruiting | Sponsor: BicycleTx Limited | Recruiting ➔ Active, not recruiting | Trial completion date: Oct 2025 ➔ Jul 2027 | Trial primary completion date: Oct 2025 ➔ Jul 2026
Enrollment closed • Trial completion date • Trial primary completion date • Breast Cancer • Gastric Cancer • Gastrointestinal Cancer • Genito-urinary Cancer • Head and Neck Cancer • Hormone Receptor Positive Breast Cancer • Lung Cancer • Lung Non-Small Cell Squamous Cancer • Non Small Cell Lung Cancer • Oncology • Ovarian Cancer • Solid Tumor • Squamous Cell Carcinoma of Head and Neck • Triple Negative Breast Cancer • Urothelial Cancer • CD4 • EPHA2
October 30, 2025
Phase 1 BT5528 combination data with nivolumab in mUC patients will now be presented at a scientific conference in the first half of 2026.
(Businesswire)
P1 data • Urothelial Cancer
July 29, 2025
Innovative Peptide Therapeutics in the Pipeline: Transforming Cancer Detection and Treatment.
(PubMed, Int J Mol Sci)
- "Innovative peptide platforms now enable three transformative applications: (1) precision molecular diagnostics (e.g., 18F-PSMA-1007 for prostate cancer detection), (2) targeted therapies (e.g., BT5528 and SAR408701 targeting tumour-specific antigens), and (3) theranostic systems (e.g., RAYZ-8009 and 177Lu-FAP-2286 integrating imaging and radiotherapy). By overcoming current limitations, peptide drugs are poised to redefine cancer management, offering safer, more effective alternatives to conventional therapies. Their integration into clinical practice could mark a critical milestone in achieving precision oncology."
IO biomarker • Journal • Review • Genito-urinary Cancer • Oncology • Prostate Cancer • Solid Tumor
June 29, 2025
Multimodal targeting of Ephrin A2 in solid tumors using bi-cyclic drug conjugates
(EACR 2025)
- "The Bicycle Platform enables the development of a multimodal therapeutic approach for solid tumor treatment, including the targeting of previously intractable proteins for other agents such as ADCs, therefore offering the opportunity to develop both best and first in class therapies. This approach is exemplified herein with EphA2 targeting Bicycle® containing molecules, with BT5528 currently in Phase 1/2 clinical trials"
Oncology • Solid Tumor • EPHA2 • TNFRSF9
March 05, 2025
Investigating the Clinical Performance of Zelenectide Pevedotin & BT5528 to Understand Class Effect Differences of Bicycle Toxin Conjugates Against Classical ADC Formats
(ADC London 2025)
- "Synopsis • Laying out the emerging safety profiles of zelenectide pevedotin and BT5528, and comparing toxicity characterisation against classical ADC formats • Delving into BT5528 clinical toxicity profile against EphA2 in contrast to ADCs against the same target • Rationalising preclinical and clinical differences with PKPD analysis and understanding the advantages of BTCs design and performance"
Clinical
January 13, 2025
Bicycle Therapeutics…Highlights 2025 Strategic Priorities and Milestones
(Businesswire)
- "2025 Strategic Priorities and Anticipated Milestones:...Advance targeted therapeutics pipeline addressing novel targets that have historically been challenging to treat: (i) Report Phase 1 combination data for BT5528 plus nivolumab in 4Q 2025; (ii) Report Phase 1 combination data for BT7480 plus nivolumab in 4Q 2025."
P1 data • Solid Tumor
September 27, 2024
Study BT5528-100 in Patients With Advanced Solid Tumors Associated With EphA2 Expression
(clinicaltrials.gov)
- P1/2 | N=288 | Recruiting | Sponsor: BicycleTx Limited | Trial completion date: Dec 2024 ➔ Oct 2026
Trial completion date • Breast Cancer • Gastric Cancer • Gastrointestinal Cancer • Gastrointestinal Disorder • Genito-urinary Cancer • Head and Neck Cancer • Lung Cancer • Lung Non-Small Cell Squamous Cancer • Non Small Cell Lung Cancer • Oncology • Ovarian Cancer • Solid Tumor • Triple Negative Breast Cancer • Urothelial Cancer • CD4 • EPHA2
November 22, 2024
Study BT5528-100 in Patients With Advanced Solid Tumors Associated With EphA2 Expression
(clinicaltrials.gov)
- P1/2 | N=288 | Recruiting | Sponsor: BicycleTx Limited | Trial completion date: Oct 2026 ➔ Oct 2025
Metastases • Trial completion date • Breast Cancer • Gastric Cancer • Gastrointestinal Cancer • Gastrointestinal Disorder • Genito-urinary Cancer • Head and Neck Cancer • Lung Cancer • Lung Non-Small Cell Squamous Cancer • Non Small Cell Lung Cancer • Oncology • Ovarian Cancer • Solid Tumor • Squamous Cell Carcinoma of Head and Neck • Triple Negative Breast Cancer • Urothelial Cancer • CD4 • EPHA2
October 31, 2024
Bicycle Therapeutics Reports Recent Business Progress and Third Quarter 2024 Financial Results
(Businesswire)
- "Bicycle Therapeutics is currently assessing BT5528 at 6.5 mg/m
2
every two weeks in combination with nivolumab, with results expected in 2025."
P1/2 data • Oncology • Solid Tumor
July 25, 2024
Peripheral neuropathy (PN) following treatment (tx) with bicycle toxin conjugates (BTCs) BT8009 or BT5528 monotherapy in patients (pts) with advanced solid tumors
(ESMO 2024)
- P1/2 | "Frequency and severity of TRPN were low following BT8009 or BT5528 monotherapy. Most events were mild to moderate, even in pts with baseline PN, required no withdrawals, and pts were often able to continue tx without modification."
Clinical • Metastases • Monotherapy • Biliary Tract Cancer • Oncology • Solid Tumor • EPHA2
July 25, 2024
EphA2-targeting bicycle toxin conjugate (BTC) BT5528 in patients (pts) with advanced solid tumors: A phase I/II study
(ESMO 2024)
- P1/2 | "BT5528 demonstrated acceptable safety with antitumor activity in pts with advanced solid tumors, particularly in UC, supporting further development of BT5528 as monotherapy and in combination with nivolumab in select tumor types. Mature data from the 5 mg/m2 QW cohort will be presented."
Clinical • Metastases • P1/2 data • Biliary Tract Cancer • Breast Cancer • Head and Neck Cancer • Oncology • Solid Tumor • Squamous Cell Carcinoma of Head and Neck • EPHA2
September 14, 2024
Low rates of treatment-related peripheral neuropathy (TRPN) following monotherapy treatment with BTC molecules zelenectide pevedotin or BT5528.
(Businesswire)
- "In 149 patients treated with zelenectide pevedotin and 74 patients treated with BT5528 from ongoing Phase 1/2 studies, results showed...TRPN in 28% of patients treated with zelenectide pevedotin and 19% of patients treated with BT5528, nearly all of which were low grade (1-2). One Grade 3 event (neuralgia) was reported in a patient treated with zelenectide pevedotin following prior therapy with enfortumab vedotin. No Grade 3-4 events were observed for BT5528; Among zelenectide pevedotin-treated patients with peripheral neuropathy at baseline, 80% did not develop TRPN during treatment; TRPN resulted in few dose modifications across the overall patient populations for zelenectide pevedotin and BT5528, and no drug withdrawals were necessary for either BTC molecule...The data support the hypothesis that the antibody-drug construct may be a primary driver of peripheral neuropathy rather than MMAE toxicity as was previously believed."
Clinical data • Solid Tumor • Urothelial Cancer
September 14, 2024
Bicycle Therapeutics Presents Updated Clinical Results Across Oncology Pipeline at ESMO Congress 2024
(Businesswire)
- P1/2 | N=288 | NCT04180371 | Sponsor: BicycleTx Limited | "Updated results from the ongoing Phase 1/2 trial evaluating 6.5 mg/m2 every two weeks and 5 mg/m2 weekly of BT5528 monotherapy in patients with advanced solid tumors showed...Among 113 efficacy-evaluable patients, a 12% ORR in patients with advanced solid tumors; The highest anti-tumor activity in mUC, with a 34% ORR in all efficacy-evaluable patients enrolled in the dose escalation and expansion cohorts. Among patients receiving 6.5 mg/m2 every two weeks, a 31% ORR was observed in the dose escalation and expansion cohort and a 45% ORR was observed in the expansion cohort only...The company has begun assessing BT5528 at 6.5 mg/m2 every two weeks in combination with nivolumab. Results from this cohort are expected in 2025."
P1/2 data • Solid Tumor
September 04, 2024
Results From First-in-Human Phase I Dose-Escalation Study of a Novel Bicycle Toxin Conjugate Targeting EphA2 (BT5528) in Patients With Advanced Solid Tumors.
(PubMed, J Clin Oncol)
- "BT5528 was well tolerated and demonstrated favorable and preliminary antitumor activity. We believe these data provide preliminary validation of a Bicycle Toxin Conjugate approach to EphA2 tumor antigen. The study is ongoing and is evaluating BT5528 as monotherapy at a RP2D of 6.5 mg/m2 once every 2 weeks."
Journal • Metastases • P1 data • Fatigue • Hematological Disorders • Neutropenia • Oncology • Solid Tumor
September 04, 2024
Results From First-in-Human Phase I Dose-Escalation Study of a Novel Bicycle Toxin Conjugate Targeting EphA2 (BT5528) in Patients With Advanced Solid Tumors
(J Clin Oncol)
- P1/2 | N=288 | NCT04180371 | Sponsor: BicycleTx Limited | "Forty-five patients were enrolled and received BT5528 doses between 2.2 mg/m2 once every week to 10.0 mg/m2 once every 2 weeks within the dose-escalation stage of the study. The most frequent BT5528-related adverse events (AEs) were nausea (44.4%), diarrhea (35.6%), and fatigue (33.3%), and the most common grade ≥3 BT5528-related AE was neutropenia/neutrophil count decrease (22.2%). Dose level 6.5 mg/m2 once every 2 weeks was selected as a RP2D. At 6.5 mg/m2 once every 2 weeks, the overall response rate was 6.7%, and the disease control rate was 20.0%. BT5528 and MMAE pharmacokinetics are generally dose proportional."
P1 data • Solid Tumor
August 06, 2024
Bicycle Therapeutics Reports Recent Business Progress and Second Quarter 2024 Financial Results
(Businesswire)
- "Four abstracts accepted for poster presentation at the European Society for Medical Oncology (ESMO) Congress 2024 being held September 13-17 in Barcelona. Bicycle Therapeutics will present four abstracts containing updated clinical data for zelenectide pevedotin (formerly BT8009) in metastatic urothelial cancer (mUC), BT5528 in advanced solid tumors such as mUC and ovarian, and BT7480 in advanced solid tumors."
Clinical data • Genito-urinary Cancer • Gynecologic Cancers • Oncology • Ovarian Cancer • Solid Tumor • Urothelial Cancer
July 22, 2024
Bicycle Therapeutics Announces Four Abstracts Accepted for Presentation at the ESMO Congress 2024
(Businesswire)
- "Bicycle Therapeutics plc...announced the acceptance of four abstracts for poster presentation at the European Society for Medical Oncology (ESMO) Congress 2024, taking place September 13-17 in Barcelona."
P1/2 data • Gastrointestinal Cancer • Head and Neck Cancer • Non Small Cell Lung Cancer • Oncology • Ovarian Cancer • Solid Tumor • Triple Negative Breast Cancer • Urothelial Cancer
April 25, 2024
Breaking from the paradigm of antibody-drug conjugates: Evaluation of clinical pharmacokinetics and safety of bicycle toxin conjugates (BTCs).
(ASCO 2024)
- P1/2 | "BT8009 and BT5528 are BTCs linked to monomethyl auristatin E (MMAE) targeting nectin-4 and EphA2, respectively, and have shown preliminary activity. Preliminary data show substantial differences between BTC and ADC PK, and a promising BTC safety profile, possibly resulting from the distinct PK and selectivity (and specificity) of Bicycle peptides. These data highlight the potential value of BTCs as a platform for developing therapies against advanced malignancies."
Clinical • PK/PD data • Biliary Tract Cancer
May 23, 2024
Bicycle Therapeutics to Present Pharmacokinetic and Safety Evaluation of Lead BTC Molecules in Phase 1/2 Trials at the 2024 ASCO Annual Meeting
(Businesswire)
- P1/2 | N=288 | NCT04180371 | P1/2 | N=329 | NCT04561362 | P1/2 | N=329 | NCT04561362 | Sponsor: BicycleTx Limited | "The company also announced zelenectide pevedotin as the International Nonproprietary Name (INN) for BT8009, and U.S. Food and Drug Administration (FDA) Fast Track Designation granted to BT5528 for the treatment of adult patients with previously treated, locally advanced or metastatic urothelial cancer (mUC)....BTC molecule half-life is substantially shorter than that of EV (<1 hour vs 3.6 days), resulting in extensive elimination of the BTC molecule within hours of dose administration rather than weeks. MMAE half-life is also shorter following BTC molecule administration relative to EV (1.9 days vs 2.6 days), potentially due to a slower rate of MMAE release from the ADC....Zelenectide pevedotin-related adverse events (AEs) occurred in 84% of patients, of which 31% were Grade ≥3."
Fast track • P1/2 data • PK/PD data • Genito-urinary Cancer • Oncology • Solid Tumor • Urothelial Cancer
May 02, 2024
Bicycle Therapeutics Reports Recent Business Progress and First Quarter 2024 Financial Results
(Businesswire)
- "Continued progress across research and development (R&D) pipeline, with numerous clinical data readouts and program updates expected in 2H 2024. Importantly, Bicycle Therapeutics initiated the Phase 2/3 Duravelo-2 registrational trial for BT8009 in mUC, and patient enrollment is ongoing. The company continues to assess BT8009, BT5528 and BT7480 in Phase 1/2 clinical trials across a variety of tumor types, and plans to provide updates from its wholly owned Bicycle Radio Conjugate (BRC) pipeline."
Clinical data • Genito-urinary Cancer • Oncology • Solid Tumor • Urothelial Cancer
February 20, 2024
Bicycle Therapeutics Reports Recent Business Progress and Fourth Quarter and Full Year 2023 Financial Results
(Businesswire)
- "Execute plan to become a leader in next-generation solid tumor therapeutics and combinations, which includes: Initiating the Phase 2/3 Duravelo-2 registrational trial for BT8009 in metastatic urothelial cancer (mUC) in 1Q 2024. The trial is now active and recruiting patients. Conducting further clinical studies to assess BT8009, BT7480 and BT5528 in emerging tumors of interest, with data from these studies expected in 2H 2024. Expand opportunities in oncology, which includes: Advancing the company’s next generation of Bicycle Toxin Conjugates (BTCs). The company plans to select a BTC clinical candidate using next-generation technology in 2H 2024. Validating the company’s Bicycle Radio Conjugates (BRC) pipeline and partner for success, with updates expected from its wholly owned BRC program by mid-2024."
Clinical data • New molecule • Trial status • Genito-urinary Cancer • Oncology • Solid Tumor • Urothelial Cancer
December 14, 2023
Bicycle Therapeutics Provides Data Updates for Three Clinical Programs and Strategy Overview at First R&D Day
(Businesswire)
- P1/2 | N=288 | NCT04180371 | Sponsor: BicycleTx Limited | "Encouraging early activity in mUC with a 39% ORR in 18 patients receiving 6.5 mg/m2, 8.5 mg/m2 or 10 mg/m2 every other week, and an mDOR of 4 months in 7 patients with one responder still on therapy. This includes 6 partial responses and 1 unconfirmed response. Encouraging emerging data in other cancers such as ovarian, gastric/upper gastrointestinal and head and neck that are informing the dose optimization strategy and further development. Given the promising tolerability profile of BT5528 at 6.5 mg/m2 every other week and in line with the FDA’s Project Optimus initiative, Bicycle Therapeutics has now commenced further cohorts in mUC and ovarian cancer to test 5 mg/m2 weekly, which will inform decisions about dose optimization, potential drug combinations and expansion into other tumor types. Data from these cohorts are expected to be available in the second half of 2024."
P1/2 data • Trial status • Gastric Cancer • Gastrointestinal Cancer • Head and Neck Cancer • Ovarian Cancer • Urothelial Cancer
December 13, 2023
Bioanalysis of the Bicycle toxin conjugate BT5528 and released monomethyl auristatin E via liquid chromatography-tandem mass spectrometry.
(PubMed, Bioanalysis)
- " BT5528 was quantified over the assay range of 5-2500 ng/ml and free MMAE was quantified over the assay range of 0.05-50 ng/ml. Bioanalytical methods were used in the bioanalysis of intact BT5528 and released MMAE, in a phase I/IIa clinical trial; to date, over 2000 human patient samples have been analyzed."
Journal
September 22, 2023
Trial in progress: First-in-human phase I dose-escalation study of a novel Bicycle toxin conjugate (BT5528) targeting EphA2 in patients with advanced solid tumors
(AACR-NCI-EORTC 2023)
- No abstract available
Clinical • Late-breaking abstract • Metastases • P1 data • Oncology • Solid Tumor
September 30, 2021
[VIRTUAL] A first in class phase I/II study of the novel bicyclic peptide and MMAE conjugate, BT5528, in patients with advanced malignancies associated with EphA2 expression
(AACR-NCI-EORTC 2021)
- No abstract available
Clinical • P1/2 data • Oncology • EPHA2
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