Clinical trial NCT02073123: Study of IDO Inhibitor in Combination With Checkpoint Inhibitors for Adult Patients With Metastatic Melanoma
Official title: A Phase 1/2 Study of the Concomitant Administration of Indoximod Plus Immune Checkpoint Inhibitors for Adult Patients With Advanced or Metastatic Melanoma
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
PHASE2
Conditions: Metastatic Melanoma
Stage III Melanoma
Stage IV Melanoma
Keywords: Metastatic melanoma
Stage III melanoma
Stage IV melanoma
unresectable
Lead sponsor: Lumos Pharma
Sponsor class: INDUSTRY
First posted: 2014-02-27
Enrollment: 132
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: SEQUENTIAL
Primary purpose: TREATMENT

Brief summary: To evaluate the preliminary efficacy of the established dose of indoximod in combination with immune checkpoint inhibition as measured by the best overall response rate (ORR) (complete response (CR) + partial response (PR))across both standard of care agents administered sequentially in patients with unresectable stage III or stage IV melanoma

Detailed description: The incidence of melanoma is increasing. Based upon data obtained between 2004 and 2006, the lifetime probability of developing melanoma in the United States is estimated to be 1 in 37 for men and 1 in 56 for women. In the United States, melanoma is the fifth leading cancer in men and the seventh in women. Locally confined, fully-resectable disease may be curable with current therapy; but Stage IV metastatic disease (or relapsed/recurrent disease) is highly refractory to therapy. Thus, experimental clinical trials provide an accepted treatment option for metastatic or relapsed/refractory melanoma.

The current study is designed as a prospective trial to evaluate the combination of indoximod and checkpoint inhibitors in adult patients with metastatic melanoma. Ipilimumab, pembrolizumab and nivolumab will be used at the recommended approved doses for this indication.

The current trial will be done in two phases: a Phase 1b dose escalation of indoximod in combination with ipilimumab, starting at half the recommended single-agent dose, to establish the recommended Phase 2 dose for the combination.

This will be followed by a three arm expansion study testing a fixed dose of indoximod (at the recommended Phase 2 dose) combined with standard-dose ipilimumab, pembrolizumab or nivolumab.

Treatment will be administered on an outpatient basis. No investigational or commercial cancer directed agents or therapies other than those described below may be administered.

Safety assessment will follow the guidelines provided in the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) Version.4.03.

Patients will be followed both clinically and radiographically starting 12 weeks after initiation of treatment then every 8 weeks for tumor evaluation. Post-treatment scans will be compared to the baseline scan and responses will be assessed based using mWHO and immune related response criteria (irRC) described by Wolchok et al. (Wolchok et al., 2009).

Eligibility criteria: 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).

Primary outcomes:
measure: Overall Incidence of Adverse Events as a Measure of Safety and Tolerability
timeFrame: 17 months
measure: Phase 2 Dosing
timeFrame: 22 months
measure: Overall Response Rate
timeFrame: 22 months
Secondary outcomes:
measure: Number of Participants with Adverse Events as a Measure of Safety and Tolerability
timeFrame: 22 months
measure: Overall Survival
timeFrame: 24 months
measure: Mechanisms of activity/resistance to IDO/CTLA-4 inhibitor therapy
timeFrame: 24 months
measure: Progression Free Survival
timeFrame: 22 months
measure: Disease control rate
timeFrame: 22 months
Other outcomes:
Locations:
city: Augusta
country: United States
facility: Augusta University
state: Georgia
city: Iowa City
country: United States
facility: University of Iowa Hospital and Clinics
state: Iowa
city: Rochester
country: United States
facility: Mayo Clinic
state: Minnesota
city: Albuquerque
country: United States
facility: New Mexico Cancer Center Alliance
state: New Mexico
city: Hershey
country: United States
facility: Penn State Hershey Cancer Institue
state: Pennsylvania
city: Salt Lake City
country: United States
facility: Huntsman Cancer Institute
state: Utah
Study officials:
References: