X-ray Psoralen Activated Cancer Therapy in Head and Neck, Breast, Sarcoma and Melanoma

Overview

In this Phase I trial for subjects with advanced head & neck cancer, breast cancer, soft tissue sarcoma or melanoma all subjects will receive open label X-PACT treatment as a intra-tumoral injection. The primary objective will be to establish the safety of X-PACT when dosed with 5 intra-tumoral injections of the combination product (the phosphor device and methoxsalen sterile solution and subsequently exposing the tumor to X-ray energy) over a period of 6 weeks (on day D1, D3 and D5 of Week 1, on D1 of Week 2, and a booster on D1 of Week 6). After the week 8 tumor assessment subjects demonstrating stable disease, partial response or unconfirmed progression assessed by iRecist, will be eligible to receive two additional booster treatments 4-6 weeks apart. Treatment will be considered safe provided ≤ 2 out of 12 patients experience a dose-limiting toxicity (DLT) during the 6 weeks after the first intra-tumoral injection.

Description

The primary endpoint will be to establish the safety of X-PACT when dosed with 5 intra-tumoral injections of the combination product (the phosphor device and methoxsalen sterile solution and subsequently exposing the tumor to X-ray energy) over a period of 6 weeks (on day D1, D3 and D5 of Week 1, on D1 of Week 2, and a booster on D1 of Week 6). After the week 8 tumor assessment subjects demonstrating stable disease, partial response or unconfirmed progression assessed by iRecist, will be eligible to receive two additional booster treatments 4-6 weeks apart. Treatment will be considered safe provided ≤ 2 out of 12 patients experience a dose-limiting toxicity (DLT) during the 6 weeks after the first intra-tumoral injection. Subjects will have staging scans at baseline, day 8, week 7 and as per standard of care during the optional treatment and follow up study periods. There will be a two-year follow up period.

Eligibility

Inclusion Criteria:

1. Written informed consent and HIPAA authorization for release of personal health information. NOTE: HIPAA authorization may be included in the informed consent or obtained separately.
2. Age ≥ 18 years at the time of consent
3. ECOG Performance Status of ≤ 1
4. Subjects with histologically or cytologically confirmed advanced solid tumors which have progressed after standard therapy(ies), intolerant to standard therapy, refused standard therapy or for which no standard therapy(ies) exist. Furthermore, the tumor targeted for injections should be:
   1. A non-visceral tumor, a metastatic lymph node, a metastasis from a visceral solid tumor provided the lesion is extravisceral, or a cutaneous tumor. Visceral tumors will not be treated.
   2. The tumor must be measurable as per RECIST criteria.
   3. The tumor should be directly accessible for injection or accessible with the use of ultrasound/CT guidance.
   4. The tumor identified for injection should be selected so local control could potentially provide benefit to the patient.
   5. 80% of the tumor must be accessible for injection with X-PACT (assessed by the treating physician)
   6. The tumor must be superficial and not exceed a depth of 5 cm.
   7. Eye or brain tumors will not be treated.
5. A patient with prior brain metastasis may be considered if they have completed their

   treatment for brain metastasis at least 4 weeks prior to day 1 of treatment, have been off of corticosteroids for ≥ 2 weeks, and brain metastases are asymptomatic.

6. The study site Radiation Oncologist Investigator/sub-investigator has determined additiional radiation delivered via X-PACT is appropriate given patient's prior radiation exposure. The treating Radiation Oncologist will review all prior radiation received to the proposed site of X-PACT treatment and assess the potential for unacceptable toxicity to the site or local organ(s) using QUANTEC.
7. All toxicities from prior therapy should be ≤Grade 1 before start of study treatment. All radiation associated toxicities must have completely resolved to be considered for inclusion into the study.
8. Demonstrate adequate organ function as defined in the table below:

   Hematological

             White blood cell (WBC) ≥ 3 x 109/L Absolute Neutrophil Count (ANC) ≥ 1.5 x 109/L
             Platelet Count ≥ 100 x 109/L Hemoglobin (Hgb) ≥ 8 g/dL2
             Renal:
             Serum creatinine OR Creatinine clearance ≤ 1.5 x upper limit of normal (ULN) OR, in
             patients with a serum creatinine 1.5 x ULN, ≥ 60 mL/min as measured by a 24-hour urine
             collection or estimated by the Cockcroft and Gault formula
             Hepatic:
             Total bilirubin ≤ 1.5 × ULN (in patients with known Gilbert Syndrome a total bilirubin
             ≤3.0× ULN with direct bilirubin ≤1.5 X ULN) Aspartate aminotransferase (AST) ≤ 2.5 ×
             ULN (or ≤ 5 if liver metastases are present) Alanine aminotransferase (ALT) ≤ 2.5 ×
             ULN (or ≤ 5 if liver metastases are present)
             Coagulation:
             International Normalized Ratio (INR) ≤ 1.5
          9. Females of childbearing potential (FCBP) must have a negative serum pregnancy test
             within 3 days prior to day 1 of treatment. NOTE: Females are considered of
             childbearing potential unless they are surgically sterile (have undergone a
             hysterectomy, bilateral tubal ligation, or bilateral oophorectomy) or are
             postmenopausal (at least 12 consecutive months with no menses without an alternative
             medical cause).
         10. FCBP must be willing to use a highly effective contraceptive method (i.e., achieves a
             failure rate of <1% per year when used consistently and correctly) from the time of
             informed consent until 28 days after treatment discontinuation. Contraceptive methods
             with low user dependency are preferable but not required (see table below, adapted
             from:
             http://www.hma.eu/fileadmin/dateien/Human_Medicines/01-About_HMA/Working_Groups/CTFG/2
             014_09_HMA_CTFG_Contraception.pdf)
             Highly Effective Birth Control Methods:
               -  combined (estrogen and progestogen containing) hormonal contraception associated
                  with inhibition of ovulation
                    -  oral
                    -  intravaginal
                    -  transdermal
               -  progestogen-only hormonal contraception associated with inhibition of ovulation
                    -  oral
                    -  injectable
                    -  implantable
               -  intrauterine device (IUD)
               -  intrauterine hormone-releasing system (IUS)
               -  vasectomised partner
               -  sexual abstinence
         11. Male patients must be willing to use condoms from the time of informed consent until
             28 days after treatment discontinuation. For a non-pregnant FCBP partner,
             contraception recommendations should also be considered.
         12. As determined by the enrolling physician, ability of the patient to understand and
             comply with study procedures for the entire length of the study
         13. Patient is expected to have a life expectancy of at least 4 months
         14. If the proposed site of treatment with X-PACT had prior exposure to curative-intent
             radiation, the patient may be entered into the trial with the following provisions
             satisfied.
               -  There is at least a 6 month wash out period from the last date radiation was
                  received to assess for radiation toxicity.
               -  If there was previous radiation toxicity at the proposed site of X-PACT, the
                  toxicity resolved at least three months ago and the site did not involve a major
                  organ.
               -  The site investigator in addition to the radiation oncologist (as a part of
                  criterion #6) has fully reviewed the subject's radiation history, has examined
                  the area for radiation toxicity and assessed the cumulative dose for either 5 or
                  7 X-PACT treatments and determined they will not pose additional risk for
                  radiation toxicity or re-activate any other previous toxicity.
        Exclusion Criteria:
          -  Exclusion Criteria:
               1. Pregnant or breastfeeding (NOTE: breast milk cannot be stored for future use
                  while the mother is being treated on study.)
               2. Prior exposure to methoxsalen
               3. History of any of the following:
                    1. Idiosyncratic or hypersensitivity reactions to any psoralen compounds or any
                       of their excipients
                    2. Light sensitive disease state
                    3. Disease associated with photosensitivity including lupus erythematosus,
                       porphyria cutanea tarda, erythropoietic protoporphyria, variegate porphyria,
                       xeroderma pigmentosum and albinism
                    4. Aphakia
               4. History of idiosyncratic or hypersensitivity reactions to any of the phosphor
                  device components
               5. Known diagnosis of human immunodeficiency virus (HIV), hepatitis B or hepatitis C
                  infection (NOTE: testing not required)
               6. Active infection requiring systemic therapy (NOTE: at discretion of investigator,
                  patients with uncomplicated urinary tract infections may be eligible.)
               7. Has a known additional other primary malignancy that is active and/or progressive
                  requiring treatment; exceptions include basal cell skin cancer, in situ cervical
                  or bladder cancer, or other cancer for which the patient has been disease-free
                  for at least five years.
               8. Systemic anti-cancer treatment within 28 days (or 5 half-lives, whichever is
                  shorter) prior to day 1 of treatment
               9. Treatment with any investigational drug within 5 half-lives or 28 days, whichever
                  is shorter (or if half-life is unknown, within 28 days) prior to day 1 of
                  treatment
              10. Impaired cardiac function or clinically significant cardiac diseases, including
                  any of the following:
                    1. Uncontrolled cardiac arrhythmia (patients with rate-controlled atrial
                       fibrillation are not excluded)
                    2. Uncontrolled hypertension (systolic BP > 170 mmHg or diastolic BP > 105 mmHg
                       at screening) despite two concomitant antihypertensive therapies.
                    3. Acute myocardial infarction or unstable angina ≤ 6 months prior to day 1 of
                       treatment
                    4. New York Heart Association Class III or IV congestive heart failure (
              11. Other uncontrolled intercurrent illness including, but not limited to, ongoing or
                  active infection, or psychiatric illness/social situations that would limit
                  compliance with study requirements as determined by the investigator.
              12. The tumor identified for treatment has a volume greater than 500 cc (Soft Tissue
                  Sarcoma only). All other tumor types may have a maximum volume of 300 cc
              13. Receiving or planned use of corticosteroids. Subjects will require a one-week
                  washout period from prior corticosteroid use. Inhaled or topical steroids are
                  permitted.
              14. Subjects with active autoimmune disease requiring 10 mg or greater of prednisone
                  and/or biologic agents.
              15. Subjects with a history of pancreatitis or elevated baseline serum lipase without
                  otherwise specified etiology.