Phase II, Single-arm Study of AZD1775 Monotherapy in Relapsed Small Cell Lung Cancer Patients

NCT02593019 | Completed Phase 2

• 1 other identifier: 2015-10-178
• Study Type: interventional
• Target: 24
• Locations: 1 country
• Sites: 1

Brief Summary

AZD1775 (previously known as MK-1775 in earlier studies) is an inhibitor of Wee1, a protein tyrosine kinase. Wee1 phosphorylates and inhibits cyclin-dependent kinases 1 (CDK1) and 2 (CDK2), and is involved in regulation of the intra-S and G2 cell cycle checkpoints. CDK1 (also called cell division cycle 2, or CDC2) activity drives a cell from the G2 phase of the cell cycle into mitosis. In response to DNA damage, Wee1 inhibits CDK1 to prevent the cell from dividing until the damaged DNA is repaired (G2 checkpoint arrest). Inhibition of Wee1 is expected to release a tumor cell from chemotherapeutically-induced arrest of cell replication. In vitro experiments demonstrate that AZD1775 has synergistic cytotoxic effects when administered in combination with various DNA damaging agents that have divergent mechanisms of action. Therefore, the primary objective of the clinical development of AZD1775 is its use as a chemosensitizing drug in combination with a cytotoxic agent (or combination of agents) for treatment of advanced solid tumors. CDK2 activity drives a cell into, and through, S-phase of the cell cycle where the genome is duplicated in preparation for cell division. Inhibition of Wee1 is expected to cause aberrantly high CDK2 activity in S-phase cells which, in turn, leads to unstable DNA replication structures and ultimately DNA damage. Therefore, it is anticipated that AZD1775 will have independent anti-tumor activity in the absence of added chemotherapy. The tumor suppressor protein p53 regulates the G1 checkpoint. As the majority of human cancers harbor abnormalities in this pathway they become more dependent on S- and G2- phase checkpoints. Thus, S- and G2-checkpoint abrogation caused by inhibition of Wee1 may selectively sensitize p53-deficient cells. One hundred percent of Small cell lung cancer has TP53 mutation, therefore we can expect that most of Small cell lung cancer have lost G1 checkpoint and has high probability of WEE1 dependency for proper DNA repair and cell cycle progression. For this reason, Small cell lung cancer could be a good clinical trial target disease for WEE1 inhibitor.

Conditions

Small Cell Lung Cancer

Outcome Measures

Primary Outcomes (1)

• Objective reponse rate

  Up to 24 weeks for each subject

Secondary Outcomes (5)

• Duration of response

  Up to 24 weeks for each subject

• Disease control rate

  8 weeks

• Overall survival (OS)

  Up to 24 weeks for each subject

• progression-free survival (PFS)

  Up to 24 months for each subject

• Number of subjects with Adverse Events as a Measure of Safety and Tolerability

  Up to 24 months for each subject

Study Arms (1)

AZD1775

EXPERIMENTAL

AZD1775 175 mg BID per os every 12 hours (6 doses) administered days 1-3 the first week and then days 1-3 the 2nd week of 21 day cycle.

Drug: AZD1775

Interventions

AZD1775 DRUG

AZD1775 175 mg BID per os every 12 hours (6 doses) administered days 1-3 the first week and then days 1-3 the 2nd week of 21 day cycle. Tumour evaluation using RECIST 1.1 will be conducted at screening (within 28 days prior to first dose) and every 6 weeks relative to the date of first dose, up to week 42, then every 9 weeks until objective disease progression (within a window of +/- 7 days of the scheduled date).

AZD1775

Eligibility Criteria

• Age: 20 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Provision of fully informed consent prior to any study specific procedures.
• Patients must be ≥20 years of age.
• Small cell lung cancer that has progressed during or after first-line therapy.
• The 1st line regimen must have contained platinum based regimen.
• Refractory to first-line chemotherapy or relapse within 6 months since the last dose of first-line chemotherapy
• If the patient correspond to sensitive relapse (relapse more than 6 months since the last dose of first-line chemotherapy), she/he should get second-line treatment.
• Previous radiotherapy is allowed.
• Provision of tumor sample (from either archival or fresh biopsy)
• Patients are willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations.
• ECOG performance status 0-2
• Patients must have a life expectancy ≥ 3 months from proposed first dose date.
• Patients must have acceptable bone marrow, liver and renal function measured within 14 days prior to administration of study treatment as defined below:
• Haemoglobin ≥9.0 g/dL
• Absolute neutrophil count (ANC) ≥ 1.5 x 109/L
• White blood cells (WBC) \> 3 x 109/L

You may not qualify if:

• More than two prior chemotherapy regimen for the treatment of small cell lung cancer
• Any previous treatment with P53 inhibitors (small molecules)
• Patients with second primary cancer, except: adequately treated non-melanoma skin cancer, curatively treated in-situ cancer of the cervix, or other solid tumours curatively treated with no evidence of disease for \>2 years.
• Patients unable to swallow orally administered medication.
• Treatment with any investigational product during the last 14 days before the enrollment (or a longer period depending on the defined characteristics of the agents used).
• Patients receiving any systemic chemotherapy, radiotherapy (except for palliative reasons), within 3 weeks from the last dose prior to study treatment (or a longer period depending on the defined characteristics of the agents used). The patient can receive a stable dose of bisphosphonates or denosumab for bone metastases, before and during the study as long as these were started at least 4 weeks prior to treatment.
• Concomitant use of known sensitive CYP3A4 substrates or CYP3A4 substrates with a narrow therapeutic index, or to be moderate to strong CYP3A4 inhibitor/inducer which cannot be discontinued to weeks prior to Day 1 of dosing and withheld throughout the study until 2 weeks after the last dose of study drug, Co-administration of aprepitant or fosaprepitant during this study is prohibitedRefer to the Section 5.9.2 and Appendix H for listing of all prohibited medications.
• With the exception of alopecia, any ongoing toxicities (\>CTCAE grade 1) caused by previous cancer therapy.
• Intestinal obstruction or CTCAE grade 3 or grade 4 upper GI bleeding within 4 weeks before the enrollment.
• Resting ECG with measurable QTcB \> 480 msec on 2 or more time points within a 24 hour period or family history of long QT syndrome.
• Patients with cardiac problem as follows: unstable angina pectoris, congestive heart failure, acute myocardial infarction, conduction abnormality not controlled with pacemaker or medication, significant ventricular or supraventricular arrhythmias (patients with chronic rate controlled atrial fibrillation in the absence of other cardiac abnormalities are eligible).
• Female patients who are breast-feeding or child-bearing
• Any evidence of severe or uncontrolled systemic disease, active infection, active bleeding diatheses or renal transplant, including any patient known to have human immunodeficiency virus (HIV), active hepatitis B or active hepatitis C
• Major surgical procedures ≤28 days of beginning study treatment, or minor surgical procedures ≤7 days
• Known central nervous system (CNS) disease other than neurologically stable,treated brain metastases - defined as metastasis having no evidence of progression or haemorrhage for at least 2 weeks after treatment

Sponsors & Collaborators

• Samsung Medical Center: lead

Study Sites (1)

Samsung Medical Center

Seoul, 135-710, South Korea

Location

MeSH Terms

Conditions

Small Cell Lung Carcinoma

Interventions

adavosertib

Condition Hierarchy (Ancestors)

Carcinoma, Bronchogenic; Bronchial Neoplasms; Lung Neoplasms; Respiratory Tract Neoplasms; Thoracic Neoplasms; Neoplasms by Site; Neoplasms; Lung Diseases; Respiratory Tract Diseases

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: MD,PhD,Division of hematology-oncology,Department of medicine

Study Record Dates

• First Submitted: October 28, 2015
• First Posted: October 30, 2015
• Study Start: December 1, 2015
• Primary Completion: October 1, 2018
• Study Completion: October 1, 2018
• Last Updated: March 19, 2021

Record last verified: 2021-03

Locations

KR (1)