Study Stopped
insufficient clinical response per DSMB
Docetaxel With or Without Ascorbic Acid in Treating Patients With Metastatic Prostate Cancer
A Randomized Phase 2 Trial of Ascorbic Acid in Combination With Docetaxel in Men With Metastatic Prostate Cancer
4 other identifiers
interventional
50
1 country
6
Brief Summary
This randomized phase II trial studies how well docetaxel works when given with or without ascorbic acid in treating patients with prostate cancer that has spread to other places in the body. Drugs used in chemotherapy, such as docetaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Ascorbic acid (vitamin C) is a water-soluble vitamin that may help inhibit the growth of cancer cells. It is not yet known whether docetaxel works better when given with or without ascorbic acid in treating prostate cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Jun 2016
Longer than P75 for phase_2
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 4, 2015
CompletedFirst Posted
Study publicly available on registry
August 6, 2015
CompletedStudy Start
First participant enrolled
June 20, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
October 14, 2021
CompletedResults Posted
Study results publicly available
August 8, 2022
CompletedJune 7, 2023
June 1, 2023
5.1 years
August 4, 2015
July 11, 2022
June 5, 2023
Conditions
Outcome Measures
Primary Outcomes (2)
Number of Participates With a Decline in Prostate-specific Antigen From Their Baseline Measurement
prostate-specific antigen decline will be defined as ≥ 50% from baseline measurement
up to 24 weeks
Number of Participants With Adverse Events
Number of participants experiencing fatigue, nausea, bone pain, and anorexia as defined by CTCAE 4.0
Up to 30 days after the last dose of study drug
Secondary Outcomes (5)
Average Number of Times Docetaxel Had Dose Reductions
Up to 24 weeks
Number of Serious Adverse Events
Up to 30 days after last dose of study drug
Number of Participates Experiencing Serious Adverse Events (SAE)
Up to 24 weeks
Change in Quality of Life (QoL) as Measured by the FACT-P Questionnaire
Up to course 6 of therapy (18 weeks)
Radiographic Progression Free Survival (rPFS)
Up to 3 years
Other Outcomes (3)
Effect of Ascorbic Acid on Docetaxel Exposure
Up to 24 weeks
F2-isoprostanes, a Pharmacodynamic Measure of Oxidant Injury in Vivo
Up to course 6 (18 weeks)
Peak and Trough Ascorbic Acid Levels
Up to 24 weeks
Study Arms (2)
Arm A (docetaxel, ascorbic acid)
EXPERIMENTALPatients receive docetaxel IV on day 1 and ascorbic acid IV twice weekly. The first ascorbic acid treatment will be given on day 1 (same day as docetaxel). Treatment repeats every 21 days for 8 courses in the absence of disease progression or unacceptable toxicity.
Arm B (docetaxel, placebo)
PLACEBO COMPARATORPatients receive docetaxel IV on day 1 and placebo IV twice weekly.The first placebo treatment will be given on day 1 (same day as docetaxel). Treatment repeats every 21 days for 8 courses in the absence of disease progression or unacceptable toxicity.
Interventions
Given IV
Given IV
Correlative studies
Correlative studies
Ancillary studies
Eligibility Criteria
You may qualify if:
- Have metastatic castration-resistant prostate cancer (prostate cancer progressing despite castrate levels of testosterone \[\< 50 ng/dL\] using standard measures of progression defined by Prostate Cancer Working Group 2), are chemo-naïve for metastatic castration-resistant prostate cancer (mCRPC); patients must have symptomatic disease or visceral metastases or otherwise be eligible for docetaxel treatment per investigator judgment (e.g. for progression on imaging or rapidly rising PSA despite 2nd line hormonal treatment);
- Note: Six cycles of prior docetaxel are allowed in hormone-sensitive disease, per Eastern Cooperative Oncology Group (ECOG) 3805 data and have been off of docetaxel for at least 12 months
- Have a pathological diagnosis of prostate carcinoma
- Patients may be receiving continuous hormonal ablation with surgical or medical castration with baseline testosterone \< 50 ng/dL
- Patient may be receiving bone targeted agents
- Have evaluable disease by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 and/or Prostate Cancer Working Group 2 (PCWG2) criteria
- Have ECOG performance status 0-1
- Have an estimated life expectancy \> 4 months
- Absolute neutrophil count \>= 1500/mm\^3
- Platelets \>= 100,000/mm\^3
- Hemoglobin \>= 9 g/dL
- Total bilirubin =\< 1.0 upper limit of normal (ULN)
- Aspartate aminotransferase (AST)(serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT)(serum glutamate pyruvate transaminase \[SGPT\]) =\< 2.5 x ULN
- Creatinine =\< 1.6 mg/dl (for patients with \> 1.6 mg/dl, calculated or measured creatinine clearance must be \>= 55 mL/minute \[Cockcroft-Gault\])
- Men of reproductive potential and those who are surgically sterilized (i.e., postvasectomy) must agree to practice effective barrier contraception that has an expected failure rate of \< 1% during and for 30 days after discontinuation of study treatment
- +2 more criteria
You may not qualify if:
- Have had known active central nervous system (CNS) metastases and/or carcinomatous meningitis; subjects with previously treated brain metastases may participate provided they are stable (without evidence of progression by imaging for at least four weeks prior to the first dose of trial treatment and any neurologic symptoms have returned to baseline), have no evidence of new or enlarging brain metastases, and are not using steroids for CNS involvement for at least one week prior to trial treatment; patients with primary brain tumors are not eligible; however, as patients are completing abiraterone therapy, they will be allowed to continue up to 10 mg/day of prednisone
- Have had prior chemotherapy for metastatic disease in castration-resistant prostate cancer (prior chemotherapy for hormone-sensitive disease, more than twelve months prior to registration, is acceptable)
- Have had had surgery within four weeks of dosing of investigational agent, excluding minor procedures (dental work, skin biopsy, etc.), celiac plexus block, and biliary stent placement
- Have had palliative radiation or biological cancer therapy within 2 weeks prior to the first dose of study drug
- Have received other investigational drugs within 28 days prior to enrollment
- Is expected to require any other form of systemic or localized antineoplastic therapy while on study
- Patients who require frequent (several times a day) monitoring of their blood glucose or patients who have recently been hospitalized for glucose control
- Are being treated with anticoagulation therapy (aspirin and nonsteroidal anti-inflammatory drugs \[NSAIDS\] are allowed)
- The subject requires concomitant treatment with the following inhibitors of cytochrome P450, family 3, subfamily A, polypeptide 4 (CYP3A4):
- Antibiotics: clarithromycin, erythromycin, telithromycin, troleandomycin
- Antifungals: itraconzaole, ketoconazole, voriconazole, fluconazole, posaconazole
- Antidepressants: nefazodone
- Antidiuretic: conivaptan
- Anti-retrovirals: delaviridine or protease inhibitors (ritonavir, indinavir, lopinavir/ritonavir, saquinavir, nelfinavir) or cobicistat-boosted antiretrovirals
- Gastrointestinal (GI): cimetidine, aprepitant
- +9 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (6)
Sibley Memorial Hospital
Washington D.C., District of Columbia, 20016, United States
Anne Arundel Health System, Research Institute
Annapolis, Maryland, 21401, United States
Johns Hopkins University/Sidney Kimmel Cancer Center
Baltimore, Maryland, 21287, United States
Barbara Ann Karmanos Cancer Institute
Detroit, Michigan, 48201, United States
University Hospitals of Cleveland Seidman Cancer Center
Cleveland, Ohio, 44106, United States
Thomas Jefferson University
Philadelphia, Pennsylvania, 19107, United States
Related Publications (1)
Paller CJ, Zahurak ML, Mandl A, Metri NA, Lalji A, Heath E, Kelly WK, Hoimes C, Barata P, Taksey J, Garrison DA, Patra K, Milne GL, Anders NM, Nauroth JM, Durham JN, Marshall CH, Markowski MC, Eisenberger MA, Antonarakis ES, Carducci MA, Denmeade SR, Levine M. High-Dose Intravenous Vitamin C Combined with Docetaxel in Men with Metastatic Castration-Resistant Prostate Cancer: A Randomized Placebo-Controlled Phase II Trial. Cancer Res Commun. 2024 Aug 1;4(8):2174-2182. doi: 10.1158/2767-9764.CRC-24-0225.
PMID: 39076107DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Channing Paller Associate Professor Urologic Oncology
- Organization
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Study Officials
- PRINCIPAL INVESTIGATOR
Channing Paller, MD
Johns Hopkins University/Sidney Kimmel Cancer Center
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 4, 2015
First Posted
August 6, 2015
Study Start
June 20, 2016
Primary Completion
July 31, 2021
Study Completion
October 14, 2021
Last Updated
June 7, 2023
Results First Posted
August 8, 2022
Record last verified: 2023-06