Could an immune-boosting pill make melanoma treatments work better?
NCT ID NCT02073123
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a drug called indoximod, taken as a pill, together with standard immune checkpoint inhibitors (ipilimumab or pembrolizumab) in 131 adults with advanced or metastatic melanoma that could not be removed by surgery. The goal was to see if the combination was safe and improved tumor shrinkage. The trial has been completed, and results may help design future treatments.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Indoximod (a drug that may boost the immune system against cancer)
- What this could lead to
- If successful, this combination could improve response rates and survival for people with advanced melanoma that cannot be surgically removed.
- What could go wrong
- This is an early-phase trial with a small number of participants, so results may not apply broadly. The combination may cause significant side effects or fail to improve outcomes over existing treatments.
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 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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131 people
The number who actually took part.
- Started
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Jul 2014
- Finished
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Jul 2019
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 years and older
- Sex
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Anyone
- Healthy volunteers
-
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: * Unresectable Stage III or Stage IV melanoma. * Patients must have measurable disease, defined as lesions that can be accurately measure in in 2 perpendicular diameters with at least one diameter \> 20mm and the other \>10mm on conventional CT or MRI or 10mm x 10 mm by spiral CT. * No systemic treatment in the previous 28 days. * Age ≥18 years. Because no dosing or adverse event data are currently available on the use of ipilimumab or indoximod in patients \<18 years of age, children are excluded from this study. * ECOG performance status ≤2 (Karnofsky ≥60% ) * Patients with known brain metastases will only be eligible after their tumors have been treated with definitive resection and/or radiotherapy and they are neurologically stable for at least 1 month off steroids. Exclusion Criteria: * Patients who have had molecular targeted therapy (including vemurafenib) or radiotherapy within 4 weeks prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier. * Patients who have had prior therapy with immune checkpoint inhibition or or indoximod are excluded from the trial. * Any other cancer, unless the patient has been disease-free for ≥5 years * Patients with laboratory evidence of pancreatitis are excluded. * Patients with autoimmune disease * Chronic use of immune-suppressive drugs (ie, systemic corticosteroids used in the management of cancer or non-cancer related illnesses, eg, COPD).
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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.
Contacts and locations
Locations
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Augusta University
Augusta, Georgia, 30912, United States
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Huntsman Cancer Institute
Salt Lake City, Utah, 84112, United States
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Mayo Clinic
Rochester, Minnesota, 55905, United States
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New Mexico Cancer Center Alliance
Albuquerque, New Mexico, 87106, United States
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Penn State Hershey Cancer Institue
Hershey, Pennsylvania, 17033, United States
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University of Iowa Hospital and Clinics
Iowa City, Iowa, 52242, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New antibody aims to preserve immune checkpoint while fighting cancer
- Can a DNA vaccine teach the immune system to hunt melanoma?
- Can an immune booster make chemo hit melanoma harder?
- A quest to find biomarkers that match melanoma patients with the right immunotherapy