Study of CB-103 in Adult Patients With Advanced or Metastatic Solid Tumours and Haematological Malignancies
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ClinicalTrials.gov Identifier: NCT03422679 |
Recruitment Status :
Terminated
(business reason)
First Posted : February 6, 2018
Last Update Posted : February 9, 2023
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Condition or disease | Intervention/treatment | Phase |
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Breast Cancer Colorectal Cancer Adenoid Cystic Carcinoma Non-hodgkin Lymphoma Glomus Tumor, Malignant Hepatocellular Carcinoma Osteosarcoma T-ALL | Drug: CB-103 | Phase 1 Phase 2 |
This Phase I/IIA, open label, multicenter, dose escalation study of CB-103 in patients with Locally Advanced or Metastatic Solid Tumours and Haematological Malignancies. After providing signed informed consent, patients will be screened for entry into the study. The study will be conducted in 2 stages: dose escalation in Part A of the study (Phase I) followed by dose expansion in Part B (Phase IIA).
Escalation cohorts will receive repeat doses of CB-103 to determine the MTD and RP2D.
CB-103 will be administered orally in treatment cycles of 28-days each. Aim of the expansion Phase IIA, Part B of the study will be to collect preliminary evidence of anti-tumour activity.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 79 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase I/IIA, Multi-Centre, Open-Label, Dose-Escalation Study With Expansion Arms to Assess the Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of CB-103 Administered Orally in Adult Patients With Locally Advanced or Metastatic Solid Tumours and Haematological Malignancies Characterised by Alterations of the NOTCH Signalling Pathway |
Actual Study Start Date : | December 5, 2017 |
Actual Primary Completion Date : | November 11, 2022 |
Actual Study Completion Date : | November 11, 2022 |

Arm | Intervention/treatment |
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Experimental: CB-103
CB-103 capsules will be administered orally in treatment cycles of 28-days each.
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Drug: CB-103
Hard gelatine capsules taken orally during treatment period. Treatment cycle is 28 days. |
- Part A: Dose limiting toxicity (DLT) [ Time Frame: 28 days ]Number of patients with dose limiting toxicity
- Part B: antitumour efficacy [ Time Frame: up to 12 months ]Best overall response rates of each tumor type using appropriate response Evaluation Criteria
- Part A and B: incidence of all adverse events and serious adverse events (safety and tolerability) [ Time Frame: up to 12 months ]Number of participants with adverse events as a measure of safety and tolerability
- Part A and B: pharmacokinetic - Cmax [ Time Frame: PK profiling in cycle 1 and 2 (cycle duration: 28 days) ]Maximum plasma concentration
- Part A and B: pharmacokinetic - tmax [ Time Frame: PK profiling in cycle 1 and 2 (cycle duration: 28 days) ]Time to Cmax
- Part A and B: pharmacokinetic - AUC [ Time Frame: PK profiling in cycle 1 and 2 (cycle duration: 28 days) ]Area under the curve during 8 and 24 hours
- Part A and B: pharmacokinetic - t1/2 [ Time Frame: PK profiling in cycle 1 and 2 (cycle duration: 28 days) ]elimination half-life
- Part A: preliminary antitumour efficacy [ Time Frame: up to 6 months ]Overall response rates of each tumor type using appropriate response evaluation criteria

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
INCLUSION CRITERIA:
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Disease
- Patients with histologically or cytologically confirmed solid tumours (breast cancer (triple negative breast cancer [TNBC], ER+/-, HER2+/-), gastrointestinal (GI) cancers (resistant to oxaliplatin or irinotecan-based therapy colorectal cancer [CRC]), osteosarcoma, adenoid cystic carcinoma (ACC), and malignant glomus tumour) that are surgically unresectable, locally advanced, or metastatic and whose disease has progressed on at least one line of systemic therapy (with the exception of ACC patients who are allowed to be systemic treatment-naïve) and for whom no established therapeutic alternatives exist. Any other solid cancer (including lymphoma) with a confirmed NOTCH1-4 activating mutation or genetic lesion.
- Relapsed or refractory (r/r) T-cell acute lymphoblastic leukaemia (T-ALL) or lymphoma (T-LBL) with a confirmed NOTCH pathway activation. Refractory patients are defined as T-ALL/T-LBL patients with ≥ 5% bone marrow blasts, and/or concomitant extramedullary involvement, who have not achieved a CR after standard induction/consolidation therapy attempt.
- Demography: men and women ≥ 18 years old
- Adequate organ function and laboratory results
- Adequate contraceptive measures
- Signed informed consent
EXCLUSION CRITERIA
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Medical History
- Patients with symptomatic CNS metastases (neurologically unstable or requiring increasing doses of steroids to control their CNS disease)
- Hypersensitivity to any of the excipients of CB-103
- Patients with unresolved nausea, vomiting, or diarrhoea of CTCAE grade > 1
- Impairment of GI function or presence of GI disease that may significantly alter the absorption of CB-103
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History of second or other primary cancer with the exception of:
- Curatively treated non-melanomatous skin cancer
- Curatively treated cervical cancer or breast carcinoma in situ
- Other primary solid tumour treated with curative intent and no known active disease present and no treatment administered during the last 2 years.
- Exclusionary concurrent medical conditions Impaired cardiac function or clinically significant cardiac diseases.
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Prior Therapy
- In patients with solid tumours cytotoxic chemotherapy within 3 weeks
- In T-ALL/T-LBL patients, prior anticancer therapy less than 2 weeks prior to starting therapy or 5 half-lives (whichever is longer) with exceptions.
- Radiation therapy within 2 weeks of scheduled CB-103 dosing day 1
- Immunotherapy, biological therapies, targeted small molecules, hormonal therapies within 3 weeks of scheduled CB-103 dosing day 1
- Unresolved toxicity CTCAE grade > 1 from previous anti-cancer therapy or radiotherapy (excluding neurotoxicity, alopecia, ototoxicity, lymphopenia), or incomplete recovery from previous surgery.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03422679

Responsible Party: | Cellestia Biotech AG |
ClinicalTrials.gov Identifier: | NCT03422679 |
Other Study ID Numbers: |
CB103-C-101 |
First Posted: | February 6, 2018 Key Record Dates |
Last Update Posted: | February 9, 2023 |
Last Verified: | February 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
advanced solid tumours haematological malignancies phase I/II NOTCH pathway pan-NOTCH inhibitor |
Carcinoma Neoplasms Osteosarcoma Carcinoma, Adenoid Cystic Hematologic Neoplasms Glomus Tumor Neoplasms, Glandular and Epithelial Neoplasms by Histologic Type |
Neoplasms by Site Adenocarcinoma Neoplasms, Bone Tissue Neoplasms, Connective Tissue Neoplasms, Connective and Soft Tissue Sarcoma Hematologic Diseases Neoplasms, Vascular Tissue |