Study of the Efficacy of Chloroquine in the Treatment of Ductal Carcinoma in Situ (The PINC Trial)

Phase 1

Completed

Conditions: Carcinoma, Intraductal, Noninfiltrating
DCIS
Ductal Carcinoma In Situ

Interventions: Drug: Chloroquine Low Dose (250mg/week)
Drug: Chloroquine Standard Dose (500mg/week)
Procedure: Breast Biopsy

Registration Number: NCT01023477

Lead Sponsor: Inova Health Care Services

Brief Summary: The purpose of this study is to test the hypothesis that chloroquine will reduce the ability of ductal carcinoma in situ (DCIS) to survive and spread. Participants will receive either chloroquine standard dose (500mg/week) or chloroquine low dose (250mg/week) for 1 month prior to surgical removal of the tumor.

Detailed Description: The purpose of this study is to test the hypothesis that inhibiting the autophagy pathway in DCIS will reduce the capacity of DCIS to survive and invade. The study will examine the safety and effectiveness of neoadjuvant chloroquine administration for a one month period to patients with low, intermediate grade, or high grade DCIS. We will evaluate whether this treatment will reduce the capacity of DCIS neoplastic cells, existing within the duct, to survive, induce lesion regression, and kill the invasive DCIS progenitor cells.

Recruitment & Eligibility

Status: COMPLETED

Sex: Female

Target Recruitment: 12

Inclusion Criteria

Patients must have a tissue diagnosis of low, intermediate or high grade ductal carcinoma in situ or ductal carcinoma in situ with microinvasion.
Patients with ductal carcinoma in situ undergoing either lumpectomy/radiation or mastectomy.
Patients must be female at least 18 years of age.
Patients must have a signed tissue acquisition consent and have at minimum, adequate samples of primary fresh tissue or blood available for use in this study.
No history of a previous invasive cancer in the last five years with the exception of minimally invasive non-melanoma skin cancer.
Normal liver function based on Liver Function Tests (Total Bilirubin and Asparate transaminase (AST) <1.5 X Upper Limit of Normal).
Normal White Blood Count (WBC) (3.5-10.8 x 103µL), Platelet count (PLT) (140-400 x 103µL), and Hematocrit (HCT)(37-52%)
Potassium within the normal range of 3.5-5.3 mEq/L
Adequate renal sufficiency (serum creatinine <1.5 mg/dL).
Eastern Cooperative Oncology Group performance status 0-2.
Are able to swallow and retain oral medication.
No underlying ocular/retinal pathology.
No medically documented preexisting auditory damage.
Subjects should be willing to abstain from use of hormonal therapies (e.g. hormone replacement therapy, oral contraceptive pills, hormone-containing Intra Uterine Device (IUD)s, and E-string) and chronic non-steroidal anti-inflammatory (NSAID) s for the duration of the study (chronic use of NSAID's is defined as a frequency >3 times/week for more than two weeks per year and includes low dose aspirin).
Subjects with child-bearing potential must agree to use adequate contraception (total abstinence (no sexual intercourse), use of condom with spermicide or sterilization surgery, including tubal ligation (tubes tied) or hysterectomy (removal of the uterus or womb)) prior to study entry and for the duration of study treatment phase. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her study physician immediately.

If a subject is of child-bearing potential (women are considered not of child-bearing potential if they are at least one year postmenopausal and/or surgically sterile), she must have a documented negative serum or urine pregnancy test before starting treatment.

Exclusion Criteria

Patients with a prior history of chemotherapy, hormonal ablation therapy and/or radiation therapy.
History of other invasive cancer in the previous 5 years other than minimally invasive non-melanoma skin cancer.
Patient desires not to participate in the study.
Inability to consent.
Current or recent pregnancy (within 12 months),
Current use of hormone-containing forms of birth control such as implants (i.e. Norplants, or injectables ( i.e. depo-provera)
Currently lactating.
Patients with history of renal or hepatic insufficiency.
Current diagnosis for depression, including treatment with an Selective Serotonin Reuptake Inhibitor (SSRI).
History of prior treatment with chloroquine for malaria within past 24 months.
History of allergic reactions to quinolones or chloroquine.
Active diagnosis of psoriasis or currently receiving treatment for psoriasis.
History of porphyria.
History of known Glucose-6-Phosphate Dehydrogenase (G-6-PD) deficiency.
Alcoholism or hepatic disease.
History of epilepsy or seizures in the past 20 years.
History of deep vein thrombosis or pulmonary embolism.
History of human immunodeficiency virus (HIV) disease and/or treatment with anti-HIV agents.
Receiving concurrent treatment with prohibited medications (refer to Table 1 for details on prohibited medications); Examples include: ampicillin, antacids, cimetidine, cyclosporine, kaolin, magnesium trisilicate, coumarin-type anticoagulants, macrolide antibiotics (e.g., clarithromycin, isoniazid, and erythromycin), anti-HIV agents (e.g., ritonavir and delavirdine), antidepressants (e.g. fluoxetine and fluvoxamine), calcium channel blockers (e.g. verapamil and diltiazem), steroids and their modulators (e.g., gestodene, raloxifene, and mifepristone), and several herbal and dietary components (e.g. bergamottin and glabridin).
Used an investigational drug within 30 days or 5 half-lives, whichever is longer, preceding the first dose of study medication.

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Chloroquine Low Dose (250mg/week)	Chloroquine Low Dose (250mg/week)	Patients with ER+ or ER- DCIS regardless of histologic grade will be randomly assigned to receive one month low dose chloroquine (250mg/week).
Chloroquine Standard Dose (500mg/week)	Breast Biopsy	Patients with ER+ or ER- DCIS regardless of histologic grade will be randomly assigned to receive one month standard dose chloroquine (500 mg/week).
Chloroquine Standard Dose (500mg/week)	Chloroquine Standard Dose (500mg/week)	Patients with ER+ or ER- DCIS regardless of histologic grade will be randomly assigned to receive one month standard dose chloroquine (500 mg/week).
Chloroquine Low Dose (250mg/week)	Breast Biopsy	Patients with ER+ or ER- DCIS regardless of histologic grade will be randomly assigned to receive one month low dose chloroquine (250mg/week).

Primary Outcome Measures

Name	Time	Method
Average Change in the Longest Diameter of the Breast MRI Target Lesion	Immediately preceding study drug treatment and again after treatment prior to surgery. The total time interval was up to 8 weeks	One of the primary outcomes of this study was to measure the impact of weekly chloroquine on the amount of DCIS seen on MRI.The tumor response was evaluated by RECIST criteria. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR The longest diameter of the target lesion or primary area of non-mass enhancement was measured by digital calipers. For one patient, the longest diameter was difficult to measure due to the presence of a significant post biopsy resolving hematoma at the biopsy site. Further correlation was made based on the extent of the pre-treatment microcalcifications and post treatment areas of non-mass enhancement.

Secondary Outcome Measures

Name	Time	Method
Total Number of Treatment-Related Adverse Events	The patients were monitored from the time of diagnosis through 6 months of surgical follow up.	One of the outcomes was to ensure the safety of weekly chloroquine. Patients were followed clinically during the treatment with chloroquine and during their surgery and postoperative period ( including radiation therapy). Patients were verbally assessed for additional symptoms or concerns. Patients were also examined by the provider during treatment and follow up visits to the surgeon.
Impact of Chloroquine Treatment on the Cell Signaling Kinase Levels in DCIS Lesions.	At the time of surgery	The study evaluated the effect of chloroquine treatment on the proteomic signaling profiles of the DCIS lesions. Post treatment surgical specimens were evaluated by immunohistochemical staining to measure cell signaling kinase levels for CD68 and HMGB1. CD68 (Cluster Determinant 68) is a marker of macrophages/monocytes in the breast ducts. and HMGB1 (High Mobility Group Box 1) is involved in oxidative stress-mediated autophagy. HMGB1 is a non-histone DNA binding protein. The number of positive cells were quantified and recorded. .
Effect of Chloroquine on Proliferating Cell Nuclear Antigen (PCNA) Proliferation Index	At the time of breast biopsy and again at time of surgery.	We evaluated the effect of therapy on cellular proliferation as measured by the change in proliferating cell nuclear antigen (PCNA) proliferation index. PCNA , which is elevated during the G1/S phase of the cell cycle, may be used as a marker of cellular proliferation. The PCNA proliferation index was measured as the number of PCNA positive stained cells in the DCIS lesion/ total number of cells in the lesion. The change in the PCNA index is equal to the mean PCNA proliferation index pre-treatment minus the mean PCNA proliferation index post-treatment.

Trial Locations

Locations (4): Inova Fairfax Hospital
🇺🇸
Falls Church, Virginia, United States
Medical Oncology and Hematology Associates of Northern Virginia
🇺🇸
Fairfax, Virginia, United States
Virginia Cancer Specialists, PC
🇺🇸
Fairfax, Virginia, United States
Virginia Surgery Associates
🇺🇸
Fairfax, Virginia, United States