New hope for Platinum-Resistant ovarian cancer: ONC201 and paclitaxel combo trial launches
NCT ID NCT04055649
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This Phase 2 trial tests whether adding the experimental drug ONC201 to standard chemotherapy (paclitaxel) can help women with ovarian, fallopian tube, or peritoneal cancer that has stopped responding to platinum-based treatments. About 62 participants will receive the combination to see if it shrinks tumors and how safe it is. The goal is to find a better option for this hard-to-treat cancer.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- ONC201 and paclitaxel
- What this could lead to
- If successful, this combination could offer a new treatment option for women with ovarian cancer that no longer responds to standard platinum-based chemotherapy.
- What could go wrong
- This is an early Phase 2 trial with only 62 participants, so results may not apply to everyone. The drug combination may cause side effects or fail to shrink tumors.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 62 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2020
- Expected to finish
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May 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Histologic diagnosis of epithelial ovarian, fallopian tube, or primary peritoneal cancer. * Progressed within 6 months of completing at least 1 cycle of last platinum containing regimen. Patients with refractory disease (progression during platinum-containing therapy) are eligible. This includes both adjuvant therapy and in the recurrent setting. * No more than 4 prior treatment regimens defined as investigational, chemotherapy, hormonal, biologic, or targeted therapy in the platinum resistant setting and total of 7 prior regimens in all settings will be allowed. Prior maintenance therapy with biologic or targeted agent does NOT count as a treatment regimen (e.g. Maintenance bevacizumab, Parpi, or immunotherapy). * At least one measurable lesion according to RECIST v1.1. * For the eight patients enrolled for PK/PD. Availability of tissue from carcinoma. For most patients this will be archival tissue. If there is no archival tissue available, biopsy of lesion MUST be performed prior to initiation of therapy. Lesions must be available for biopsy as well in these patients. * Any prior palliative radiation therapy must be completed at least 7 days prior to start of study treatment and patients must have recovered from any acute adverse effects prior to start of study treatment. * Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) score of 0-1. * Female patients who are not of childbearing potential and fertile female patients of childbearing potential who agree to use adequate contraceptive measures from 2 weeks prior to the study and until 1 month after study treatment discontinuation, who are not breastfeeding, and who have a negative serum or urine pregnancy test within 3 days prior to start of study treatment. * Patients must have adequate (at baseline): 1. Bone marrow function: Absolute neutrophil count (ANC) ≥1,500/µL. Platelets ≥100,000/µL and hemoglobin \> 8.0 gm/dL, transfusion allowed up to 1 week prior to maintain Hgb \>8. 2. Renal function: Calculated creatinine clearance (CrCl) ≥35 mL/min/1.73 mm2 3. Hepatic function: Bilirubin less than or equal to 1.5 x ULN; alkaline phosphatase (AP), aspartate transaminase (AST) and alanine transaminase (ALT) less than or equal to 3 x ULN. AP, AST and ALT less than or equal to 5 x ULN is acceptable if patient has known hepatic metastasis Exclusion Criteria: * Use of a study drug (approved or investigational drug therapy) ≤21 days or 5 half-lives (whichever is shorter) prior to the first dose of study treatment. For study drugs for which 5 half-lives is ≤21 days, a minimum of 10 days between termination of the study drug and administration of current study treatment is required. * Major surgical procedures ≤21 days of beginning study treatment, or minor surgical procedures ≤7 days. No waiting required following port-a-cath placement, ureteral stent placement, percutaneous nephrostomy tube placement. * No other (chemotherapy, immunotherapy, hormonal anti-cancer therapy, radiotherapy \[except for palliative local radiotherapy\]), biological therapy or other novel agent is to be permitted while the patient is receiving study medications * Grade \>1 toxicity from prior therapy (except alopecia or anorexia or above hematologic criteria) unless controlled by medications. * Inability to swallow oral medication. Note: Patient may not have a percutaneous endoscopic gastrostomy (PEG) tube or be receiving total parenteral nutrition (TPN) on this trial. * Known malignant central nervous system disease other than neurologically stable, treated brain metastases - defined as metastasis having no evidence of progression after treatment for at least 4 weeks (including brain radiotherapy). Must be off any systemic corticosteroids for the treatment of brain metastases for at least 14 days prior to enrollment. * Patient has had prescription or non-prescription drugs or other products (i.e. grapefruit juice) known to be moderate to strong inhibitors or inducers of CYP3A4, which cannot be discontinued 1 week prior to Day 1 of dosing and withheld throughout the study until 1 weeks after the last dose of study drug. * Any known hypersensitivity or contraindication to the components of study treatment * Pregnant or lactating * Serious active infection at the time of enrollment, or another serious underlying medical condition at discretion of the enrolling physician that would impair the ability of the patient to receive study treatment. HIV or other immunodeficiency disease that is well controlled and that does not impact baseline lab values (i.e. outside of above noted parameters for inclusion) are NOT considered exclusion criteria. * Presence of other active cancers other than ovarian cancer except those that do not require active therapy (i.e. on surveillance) and known non-invasive cancers and in situ cancers (e.g. non-melanoma skin cancers). * Psychological, familial, sociological, or geographical conditions that do not permit compliance with the protocol.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Barbara Ann Karmanos Cancer Institute
RECRUITINGDetroit, Michigan, 48201, United States
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Karmanos Cancer Institute at McLaren Flint
RECRUITINGFlint, Michigan, 48532, United States
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- Engineered immune cells take aim at Hard-to-Treat cancers
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