Pilot Study of Two Different Strengths of DFN-11 Injection for Rapidly Escalating Migraine

Pilot study to compare the proportion of subjects experiencing pain freedom at 60 minutes
post-treatment between headache treated with Strength A of DFN-11 and Strength B of DFN-11

Inclusion Criteria:

1. Diagnosis of episodic migraine, with or without aura for at least 1 year prior to
screening

2. Experience an average of 2 to 8 migraines per month for the past 12 months of which
approximately 75% or more rapidly escalate to moderate or severe pain within 2 hours
of onset

3. Females must:

- be practicing an effective method of birth control (e.g. prescription oral
contraceptives, contraceptive injections, contraceptive patch, intrauterine
device, double-barrier method [e.g., condoms, diaphragm, or cervical cap with
spermicidal foam, cream, or gel], or male partner sterilization) before entry and
throughout the study, or

- be surgically sterile (have had a hysterectomy or bilateral oophorectomy, tubal
ligation, or otherwise be incapable of pregnancy), or

- be postmenopausal (spontaneous amenorrhea for at least 1 year)

4. Females of child-bearing potential must have a negative urine pregnancy test at
screening

5. Able and willing to read and comprehend written instructions and complete the
electronic diary information required by the protocol

6. Must have internet access to complete daily headache diary

Exclusion Criteria:

1. Inability to distinguish migraine from other primary headaches

2. Experiences headache of any kind at a frequency greater than or equal to 15 days per
month

3. Chronic opioid therapy (> 10 days in the 30 days prior to screening)

4. Current treatment with monoamine oxidase A (MAO-A) inhibitors or use within 4 weeks
before randomization

5. Hemiplegic or basilar migraine

6. History, symptoms or signs of ischemic cardiac, cerebrovascular or peripheral vascular
syndromes

7. Uncontrolled hypertension (screening systolic/diastolic blood pressure > 140/90 mmHg
in 2 out of 3 readings)

8. History of epilepsy or conditions associated, which in the opinion of the
Investigator, increase the likelihood of present day seizure

9. History (within 2 years) of drug or alcohol abuse as defined by DSM-IV-TR criteria.

10. Systemic disease, which in the opinion of the Investigator, would contraindicate
participation

11. History of a neurological or psychiatric condition, which in the opinion of the
Investigator would contraindicate participation

12. Pregnant or lactating women

13. Have taken any investigational medication within 30 days before randomization, or are
scheduled to receive an investigational drug

14. Subjects with a positive urine drug screen for recreational drugs or marijuana
(whether legal or not) or for prescription drugs not explained by stated concomitant
medications

15. Clinical laboratory or electrocardiogram (ECG) abnormality that in the opinion of the
Investigator would endanger the subject or interfere with the study conduct. If the
results of the clinical laboratory or ECG are outside of normal reference range the
subject may still be enrolled but only if these findings are determined to be not
clinically significant by the Investigator. This determination must be recorded in the
subject's source document prior to enrolment.

16. Fridericia's corrected QT (QTcF) interval greater than 450 msec

17. Severe renal impairment (creatinine > 2 mg/dl)

18. Serum total bilirubin > 2.0 mg/dL

19. Serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), or alkaline
phosphatase > 2.5 times the upper limit of normal

20. Subjects who in the opinion of the investigator experience rebound headache from
caffeine usage