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TMZ + Olaparib for MGMT Hypermethylated Colorectal Cancer

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ClinicalTrials.gov Identifier: NCT04166435
Recruitment Status : Recruiting
First Posted : November 18, 2019
Last Update Posted : April 22, 2021
Sponsor:
Information provided by (Responsible Party):
Yale University

Brief Summary:
This is a Phase II, non-randomized, open-label study to evaluate temozolomide in combination with olaparib in patients with MGMT promoter hypermethylated advanced colorectal cancer.

Condition or disease Intervention/treatment Phase
Colorectal Cancer Drug: Temozolomide + Olaparib Phase 2

Detailed Description:

This is a Phase II, non-randomized, open-label study to evaluate temozolomide in combination with olaparib in patients with MGMT promoter hypermethylated advanced colorectal cancer. Patients will receive temozolomide orally daily on days 1-7 and olaparib twice daily continuously. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. After completion of study treatments patients are followed up at 30 days, and for patients that come off treatment for reasons other than disease progression, clinical assessments will continue every 6 weeks for the first year and every 12 weeks after the first year.

PRIMARY OBJECTIVES:

I. To determine the efficacy of TMZ in combination with olaparib in subjects with MGMT promoter hypermethylated advanced colorectal cancer by the overall response rate.

SECONDARY OBJECTIVES:

I. To determine the safety of TMZ in combination with olaparib. II. To estimate the progression free survival (PFS). III. To estimate overall survival (OS).

EXPLORATORY OBJECTIVES:

I. Characterize NGS profiling, patterns of DNA methylation, gene expression, and develop MGMT expression assays.

II. Correlate molecular features with Gamma H2AX with response. III. Establish organoids for MGMT promoter hypermethylated colorectal cancer.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Temozolomide and Olaparib for O6-Methylguanine DNA Methyltransferase Promoter Hypermethylated Colorectal Cancer
Actual Study Start Date : June 17, 2020
Estimated Primary Completion Date : January 1, 2022
Estimated Study Completion Date : July 1, 2022

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: Temozolomide + Olaparib
Temozolomide (75 mg/m2 orally on days 1-7 every 3 weeks) + Olaparib (150 mg orally twice daily days 1-21) in a 21-day cycle.
Drug: Temozolomide + Olaparib
Temozolomide (75 mg/m2 orally on days 1-7 every 3 weeks) + Olaparib (150 mg orally twice daily days 1-21) in a 21-day cycle.




Primary Outcome Measures :
  1. Overall Response Rate [ Time Frame: Up to 2 years ]
    To determine the efficacy of TMZ in combination with olaparib in subjects with MGMT promoter hypermethylated advanced colorectal cancer by the overall response rate (ORR).


Secondary Outcome Measures :
  1. Rate of Adverse Events [ Time Frame: Up to 2 years ]
    To determine the safety of TMZ in combination with olaparib, the rate of ≥ grade 3 adverse events by CTCAE v5.0 coding will be assessed.

  2. Progression Free Survival [ Time Frame: Up to 2 years ]
    To estimate the progression free survival (PFS), patients will be followed for up to 24 months.

  3. Overall Survival [ Time Frame: Up to 2 years ]
    To estimate overall survival (OS), patients will be followed for up to 24 months.



Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF).
  • Provision of signed and dated, written informed consent form prior to any mandatory study specific procedures, sampling, and analyses.
  • For inclusion in i) the optional exploratory genetic research and ii) the optional biomarker research, patients must fulfill the following criteria:

    • Provision of informed consent for genetic research prior to collection of sample
    • Provision of informed consent for biomarker research prior to collection of sample **If a patient declines to participate in the optional exploratory genetic research or the optional biomarker research, there will be no penalty or loss of benefit to the patient. The patient will not be excluded from other aspects of the study.
  • Individuals who are healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring.
  • Individuals with histologically proven relapsed/refractory mismatch repair proficient / microsatellite stable metastatic colorectal adenocarcinoma.
  • MGMT promoter hypermethylation on pre-screening.
  • Patients must have had recurrence, progression or intolerance to standard therapy consisting of at least 2 prior standard regimens (containing a fluoropyrimidine plus a platinum analogue and/or irinotecan) for metastatic disease. In the case where all chemotherapy agents are used concurrently (I.e. FOLFOXIRI +/- Bevacizumab) 1 prior treatment regimen is acceptable after discussion with the principal investigator. Relapse within 6 months of completing adjuvant chemotherapy is considered one line of therapy in the metastatic setting.
  • Patients must have normal organ and bone marrow function measured within 28 days prior to administration of study treatment as defined below:

    • Haemoglobin ≥ 10.0 g/dL with no blood transfusion in the past 28 days
    • Absolute neutrophil count (ANC) ≥ 1.5 x 109/L
    • Platelet count ≥ 100 x 109/L
    • Total bilirubin ≤ 1.5 x institutional upper limit of normal (ULN)
    • Aspartate aminotransferase (AST) (Serum Glutamic Oxaloacetic Transaminase (SGOT)) / Alanine aminotransferase (ALT) (Serum Glutamic Pyruvate Transaminase (SGPT)) ≤ 2.5 x institutional upper limit of normal unless liver metastases are present in which case they must be ≤ 5x ULN.
    • Patients must have creatinine clearance estimated of ≥51 mL/min using the Cockcroft-Gault equation or based on a 24 hour urine test :
    • Estimated creatinine clearance = (140-age [years]) x weight (kg) (x F)° / serum creatinine (mg/dL) x 72

      • where F=0.85 for females and F=1 for males.
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-1.
  • Patients must have a life expectancy ≥ 16 weeks.
  • At least one lesion, not previously irradiated, that can be accurately measured at baseline as ≥ 10 mm in the longest diameter (except lymph nodes which must have short axis ≥ 15 mm) with computed tomography (CT) or magnetic resonance imaging (MRI) and which is suitable for accurate repeated measurements.
  • Postmenopausal or evidence of non-childbearing status for women of childbearing potential: negative urine or serum pregnancy test within 28 days of study treatment and confirmed prior to treatment on day 1.

    • Postmenopausal is defined as:
    • Amenorrheic for 1 year or more following cessation of exogenous hormonal treatments
    • Luteinizing hormone (LH) and Follicle stimulating hormone (FSH) levels in the post menopausal range for women under 50
    • radiation-induced oophorectomy with last menses >1 year ago
    • chemotherapy-induced menopause with >1 year interval since last menses
    • surgical sterilisation (bilateral oophorectomy or hysterectomy)
  • Male patients must use a condom during treatment and for 3 months after the last dose of olaparib when having sexual intercourse with a pregnant woman or with a woman of childbearing potential. Female partners of male patients should also use a highly effective form of contraception ([see appendix C for acceptable methods]) if they are of childbearing potential.

Exclusion Criteria:

  • Other malignancy unless curatively treated with no evidence of disease for ≥5 years except: adequately treated non-melanoma skin cancer, curatively treated in situ cancer of the cervix, ductal carcinoma in situ (DCIS), Stage 1, grade 1 endometrial carcinoma.
  • Resting ECG indicating uncontrolled, potentially reversible cardiac conditions, as judged by the investigator (eg., unstable ischemia, uncontrolled symptomatic arrhythmia, congestive heart failure, QTcF prolongation >500 ms, electrolyte disturbances, etc.), or patients with congenital long QT syndrome.
  • Persistent toxicities (Common Terminology Criteria for Adverse Event (CTCAE) grade 2) caused by previous cancer therapy, excluding alopecia.
  • Patients with myelodysplastic syndrome/acute myeloid leukaemia or with features suggestive of MDS/AML.
  • Patients with symptomatic uncontrolled brain metastases. A scan to confirm the absence of brain metastases is not required. The patient can receive a stable dose of corticosteroids before and during the study as long as these were started at least 4 weeks prior to treatment. Patients with spinal cord compression unless considered to have received definitive treatment for this and evidence of clinically stable disease for 28 days.
  • Patients considered a poor medical risk due to a serious, uncontrolled medical disorder, non-malignant systemic disease or active, uncontrolled infection. Examples include, but are not limited to, uncontrolled ventricular arrhythmia, recent (within 3 months) myocardial infarction, uncontrolled major seizure disorder, unstable spinal cord compression, superior vena cava syndrome, extensive interstitial bilateral lung disease on High Resolution Computed Tomography (HRCT) scan or any psychiatric disorder that prohibits obtaining informed consent.
  • Patients unable to swallow orally administered medication and patients with gastrointestinal disorders likely to interfere with absorption of the study medication.
  • Immunocompromised patients, e.g., patients who are known to be serologically positive for human immunodeficiency virus (HIV).
  • Patients with known active hepatitis (i.e. Hepatitis B or C).
  • Active hepatitis B virus (HBV) is defined by a known positive HBV surface antigen (HBsAg) result. Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody and absence of HBsAg) are eligible.
  • Patients positive for hepatitis C virus (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV RNA.
  • Any previous treatment with PARP inhibitor, including Olaparib.
  • Any previous treatment with temozolomide or other monofunctional alkylating agent.
  • Patients receiving any systemic chemotherapy or radiotherapy (except for palliative reasons) within 3 weeks prior to study treatment
  • Concomitant use of known strong CYP3A inhibitors (eg. itraconazole, telithromycin, clarithromycin, protease inhibitors boosted with ritonavir or cobicistat, indinavir, saquinavir, nelfinavir, boceprevir, telaprevir) or moderate CYP3A inhibitors (eg. ciprofloxacin, erythromycin, diltiazem, fluconazole, verapamil). The required washout period prior to starting olaparib and temozolomide is 2 weeks.
  • Concomitant use of known strong (eg. phenobarbital, enzalutamide, phenytoin, rifampicin, rifabutin, rifapentine, carbamazepine, nevirapine and St John's Wort ) or moderate CYP3A inducers (eg. bosentan, efavirenz, modafinil). The required washout period prior to starting olaparib and temozolomide is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents.
  • Major surgery within 2 weeks of starting study treatment and patients must have recovered from any effects of any major surgery.
  • Previous allogenic bone marrow transplant or double umbilical cord blood transplantation (dUCBT).
  • Whole blood transfusions in the last 120 days prior to entry to the study (packed red blood cells and platelet transfusions are acceptable, for timing refer to inclusion criteria related to "Patients must have had recurrence, progression or intolerance to standard therapy...").
  • Participation in another clinical study with an investigational product administered in the last 28 days.
  • Subjects with a known hypersensitivity to temozolomide, olaparib, any of the recipients of either product, or the combination.
  • Patients with a known hypersensitivity to the combination/comparator agent.
  • Involvement in the planning and/or conduct of the study
  • Judgment by the investigator that the patient should not participate in the study if the patient is unlikely to comply with study procedures, restrictions and requirements.
  • Previous enrollment in the present study.
  • Breast feeding women.

Information from the National Library of Medicine

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): NCT04166435


Contacts
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Contact: Christina Wiess (203) 737-3472 canceranswers@yale.edu
Contact: Stacey Stein, MD (203) 737-1600 stacey.stein@yale.edu

Locations
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United States, Connecticut
Yale New Haven Hospital Recruiting
New Haven, Connecticut, United States, 06512
Contact: Christina Wiess    203-737-3472    christina.wiess@yale.edu   
Principal Investigator: Michael Cecchini, MD         
Sponsors and Collaborators
Yale University
Investigators
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Principal Investigator: Michael Cecchini, MD Assistant Professor of Medicine (Medical Oncology) Yale University
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Responsible Party: Yale University
ClinicalTrials.gov Identifier: NCT04166435    
Other Study ID Numbers: 2000026632
First Posted: November 18, 2019    Key Record Dates
Last Update Posted: April 22, 2021
Last Verified: April 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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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.: Yes
Additional relevant MeSH terms:
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Colorectal Neoplasms
Intestinal Neoplasms
Gastrointestinal Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Neoplasms
Digestive System Diseases
Gastrointestinal Diseases
Colonic Diseases
Intestinal Diseases
Rectal Diseases
Temozolomide
Olaparib
Antineoplastic Agents, Alkylating
Alkylating Agents
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Poly(ADP-ribose) Polymerase Inhibitors
Enzyme Inhibitors