Phase II Study of Nab-Paclitaxel in Combination With Gemcitabine for Treatment of Recurrent/Refractory Sarcoma in Teenagers and Young Adults
The purpose of this study is to see if nab-paclitaxel combined with gemcitabine prevents the formation or growth of tumors in participants with relapsed or refractory osteosarcoma, Ewing sarcoma, rhabdomyosarcoma and other soft tissue sarcoma and to measure the length of time during and after treatment that their disease does not get worse. Researchers also want to find out if nab-paclitaxel combined with gemcitabine is safe and tolerable.
- Participants must be age ≥ 12 and ≤ 30 years, and have had a histologic diagnosis of osteosarcoma, Ewing sarcoma, or rhabdomyosarcoma or non-rhabdomyosarcoma soft tissue sarcoma either at diagnosis or relapse. Must have experienced relapse after front-line therapy, or have had documented disease progression during front-line therapy.
- Must have measurable disease that can be assessed using Response Evaluation in Solid Tumors (RECIST) 1.1, defined as the presence of at least one lesion on MRI or CT scan that can be accurately measured with the longest diameter of 10 mm in at least one dimension. For this phase II trial, patients with disease limited to bone or marrow metastases are NOT eligible, as disease at these sites cannot be assessed by RECIST 1.1 criteria.
- Must have relapsed or refractory cancers for which there is no known curative option.
- Prior Therapy: There is no limit to the number of prior therapies provided all eligibility criteria are met. However, participants must have recovered from the acute toxic effects of all prior treatment. (A) Must not have received prior therapy with either gemcitabine or nab-paclitaxel. (B) Myelosuppressive chemotherapy: Must not have received myelosuppressive chemotherapy within 3 weeks of protocol therapy on this study. (C) Hematopoietic growth factors: 7 days must have elapsed from the start of protocol therapy since the completion of therapy with filgrastim, and 14 days must have elapsed from the start of protocol therapy after receiving pegfilgrastim. (D) Biologic (anti-neoplastic agent): 7 day must have elapsed from the start of protocol therapy since the completion of therapy with a biologic agent. (E) Monoclonal antibodies: 3 half-lives must have elapsed from the start of protocol therapy since prior therapy that included a monoclonal antibody. (F) Radiotherapy: 2 weeks must have elapsed from the start of protocol therapy since local palliative radiotherapy (small port); 3 months must have elapsed if 50% radiation of pelvis; 6 weeks must have elapsed if other substantial bone marrow irradiation was given. (G) Stem Cell Transplant or Rescue: No evidence of active graft vs. host disease and 2 months must have elapsed from the start of protocol therapy since transplant.
- Karnofsky performance score must be ≥ 60
- Must have organ and marrow function
- Neuropathy: Must have ≤ grade 1 neuropathy at enrollment
- Central nervous system (CNS) Metastases: Potential participants with known CNS metastases are excluded unless treated surgically or with radiotherapy and stable with no recurrent lesions for at least 3 months from the start of protocol therapy.
- Contraception: Women of child-bearing potential and men must agree to use adequate contraception prior to study entry and for the duration of study participation. Men treated or enrolled on this protocol must also agree to use adequate contraception 4 months after completion of gemcitabine and nab-paclitaxel administration.
- Consent: Participants must have the ability to understand and the willingness to sign a written informed consent or assent document.
Keywordsosteosarcoma, soft-tissue sarcoma, nab-paclitaxel, gemcitabine
Principal InvestigatorJoanne Lagmay, M.D.
Sponsoring GroupDepartment of Pediatrics
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