Breast Cancer Clinical Trial
Official title:
Double Blind Trial Investigating the Role of Sulfasalazine in Decreasing Opioids Requirements in Breast Cancer Patients
NCT number | NCT03847311 |
Other study ID # | 1605576856 |
Secondary ID | |
Status | Recruiting |
Phase | Phase 2 |
First received | |
Last updated | |
Start date | May 3, 2021 |
Est. completion date | May 1, 2025 |
Cancer in general, and breast cancer in specific, is a significant health problem in the USA and the rest of the world. With the improvement of new surgical approaches and chemotherapies to manage breast cancer, the number of patients with breast cancer are now living longer. This great achievement created an unexpected problem. For some breast cancer patients, with bone metastases, the pain is worse than the cancer. The golden standard to manage pain is opioids. Patients with cancer-induced bone pain are now taking increasing doses of opioids to control their pain. Sadly, opioids come with significant side effects that limit the amount of opioids that can be safely given. Many attempts have been tried to create better regiments for pain control to lower the need for opioids. There has not been significant success in that area. A better approach would be to add a non-opioid agent that has dual mechanisms of action. This may create synergism to better control pain while lowering the doses of opioids needed and lowering side effects. Sulfasalazine poses such quality it is a safe anti-inflammatory drug with established safety profile. It has been in use for over 50 years for the treatment of inflammatory conditions such as arthritis. In addition to its anti-inflammatory characteristics, sulfasalazine has the capacity to decrease the survival of cancer cells, also to lower the number of inflammatory mediators released by cancer cells. In short, sulfasalazine inhibit the influx of cysteine into cancer cells and the efflux of glutamate. Cysteine is needed for cell survival against oxidative stress, while glutamate activate pain receptors. Therefore, sulfasalazine will act as anti-inflammatory, an agent to accelerate cancer cells death and decreasing the released glutamate which activate pain receptors. This one agent with 3 mechanisms of actions may lower the amount of opioid needed for these patients while maintaining or improving their pain. Lowering of opioid dosing may also improve the side effects associated with opioid use. The purpose of this trial is to co-administer sulfasalazine with opioids to cancer patients and characterize their pain and the opioid use. Our hypothesis is that adding sulfasalazine to the pain medication, will lower the amount of opioids used and lower the side effects. This may improve the quality of life for patients and decrease the risks of using high amount of opioids for the patients, their families, and society in general.
Status | Recruiting |
Enrollment | 40 |
Est. completion date | May 1, 2025 |
Est. primary completion date | January 2, 2025 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 18 Years to 94 Years |
Eligibility | Inclusion Criteria: - Adult patient age 18 - <95 years old capable of understanding and providing consent in English and capable of complying with the outcome used. - Diagnosis of cancer with pain moderate to severe pain on stable doses of opioids - 3-day average numeric pain rating score (NPRS) for pain of at least 5/10 at baseline evaluation. - Patient consents to double blind design of the experiment in a shared decision- making process with the treating physician. - Pain duration of at least 6 weeks or more. - Prognosis greater than 6 months. - Able to take oral medication Exclusion Criteria: - Those receiving remuneration for their pain treatment (e.g., disability, worker's compensation). - Those involved in active litigation relevant to their pain. - Subjects with intestinal or urinary obstruction or at risk of such disorders. - Porphyria - Blood dyscrasias, hepatic or renal disease. - Taking medications that may interact with sulfasalazine. - Taking Lapatinib or Digoxin. - No sustained hypercalcemia. - Hypersensitivity to sulfasalazine, its metabolites, sulfonamides, or salicylates. - The Subject is incarcerated. - Those unable to read English and complete the assignment in English. - Addictive behavior, severe clinical depression, or psychotic features. - Possible pregnancy or lactation. |
Country | Name | City | State |
---|---|---|---|
United States | Banner University Medical Center North Campus | Tucson | Arizona |
United States | Banner University Medical Center South | Tucson | Arizona |
Lead Sponsor | Collaborator |
---|---|
University of Arizona |
United States,
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* Note: There are 18 references in all — Click here to view all references
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Overall pain relief. | By adding Sulfasalazine we hope to decrease the amount of pain intensity. | Twelve weeks | |
Secondary | Decrease opiate dose. | By adding Sulfasalazine we hope to decrease the daily use of opioids, lowering side effect of opioids, and capacity to perform more daily activities | Twelve weeks |
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