Because clinical trials are conducted under widely varying conditions, the adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.
Two randomized, double-blind, placebo-controlled, multicenter trials conducted in adults 50 years of age and older evaluated the efficacy and safety of NOCTIVA nasal spray compared to placebo. At baseline, 1045 patients treated with NOCTIVA 0.83 mcg or 1.66 mcg, or placebo, had nocturia due to nocturnal polyuria, wakening at least 2 times per night to urinate. Nocturnal polyuria was defined as nighttime urine production exceeding one-third of the 24-hour urine production. The mean age of the patients studied with nocturia due to nocturnal polyuria was 67 years with 42% between 50 and 64 years of age, and 58% aged 65 years and older. Fifty- seven percent were men and 43% were women. Caucasians comprised 79%, Blacks 12%, Hispanics 6%, and Asians 2% of the trial population.
During these trials, serious adverse reactions were reported in 2%, 2%, and 3% of patients with nocturia due to nocturnal polyuria treated with NOCTIVA 0.83 mcg, NOCTIVA 1.66 mcg, and placebo, respectively. There was one case of hyponatremia in the 1.66 mcg group and one case in the placebo group classified as serious adverse reactions.
Adverse Reactions Leading to Discontinuation
Among patients with nocturia due to nocturnal polyuria, the discontinuation rate due to adverse reactions was 4.0% with NOCTIVA 0.83 mcg, 4.4% with NOCTIVA 1.66 mcg, and 2.3% with placebo. Table 1 displays the most common adverse reactions leading to discontinuation in patients with nocturia due to nocturnal polyuria.
Table 1: Most Common Adverse Reactions (≥2 Incidences) Leading to Discontinuation in Patients With Nocturia Due to Nocturnal Polyuria in 2 Double-Blind, Placebo-Controlled Clinical Trials| Adverse Reactions | NOCTIVA
1.66 mcg
(n=341) | NOCTIVA
0.83 mcg
(n=354) | Placebo
(n=349) |
| Hyponatremia/Blood Sodium Decreased | 4 (1.2%) | 3 (0.9%) | 1 (0.3%) |
| Nasal Discomfort | 2 (0.6%) | 0 | 3 (0.9%) |
| Nasal Congestion | 2 (0.6%) | 0 | 0 |
| Atrial Fibrillation | 2 (0.6%) | 0 | 0 |
| Dizziness | 0 | 2 (0.6%) | 1 (0.3%) |
| Dysuria | 1 (0.3%) | 2 (0.6%) | 0 |
Most Common Adverse Reactions
Table 2 summarizes the most common adverse reactions reported by patients with nocturia due to nocturnal polyuria. This table shows adverse reactions reported in at least 2% of patients treated with NOCTIVA and at a higher incidence with the 1.66 mcg dose than with placebo.
Table 2: Common Adverse Reactions (Reported by ≥2% of NOCTIVA-Treated Patients and at a Higher Incidence With the 1.66 mcg Dose Than With Placebo) in 2 Double-Blind, Placebo-Controlled Clinical Trials in Patients With Nocturia Due to Nocturnal Polyuria| Adverse Reactions | NOCTIVA
1.66 mcg
(n=341) | NOCTIVA
0.83 mcg
(n=354) | Placebo
(n=349) |
| Nasal Discomfort | 20 (5.9%) | 12 (3.4%) | 17 (4.9%) |
| Nasopharyngitis | 13 (3.8%) | 8 (2.3%) | 10 (2.9%) |
| Nasal Congestion | 10 (2.9%) | 5 (1.4%) | 5 (1.4%) |
| Sneezing | 9 (2.6%) | 8 (2.3%) | 5 (1.4%) |
| Hypertension/Blood Pressure Increased | 9 (2.6%) | 6 (1.7%) | 4 (1.1%) |
| Back Pain | 8 (2.3%) | 4 (1.1%) | 3 (0.9%) |
| Epistaxis | 7 (2.1%) | 7 (2.0%) | 4 (1.1%) |
| Bronchitis | 7 (2.1%) | 3 (0.8%) | 3 (0.9%) |
| Dizziness | 6 (1.8%) | 7 (2.0%) | 5 (1.4%) |
No overall changes were observed in the safety profile during the open-label, uncontrolled extension trial with up to 126 weeks of follow-up.
Hyponatremia
Table 3 shows the incidence of serum sodium concentrations below the normal range reported in the 2 placebo-controlled trials.
Table 3: Hyponatremia in 2, Double-Blind, Placebo-Controlled Clinical Trials in Patients With Nocturia Due to Nocturnal PolyuriaSerum Sodium
Concentrations (mmol/L) | NOCTIVA 1.66 mcg
(n=341) | NOCTIVA 0.83 mcg
(n=354) | Placebo (n=349) |
| 130-134 | 42 (12.3%) | 33 (9.3%) | 18 (5.2%) |
| 126-129 | 7 (2.1%) | 8 (2.3%) | 0 |
| ≤125 | 5 (1.5%) | 0 | 1 (0.3%) |
Of the 5 patients on NOCTIVA 1.66 mcg with serum sodium ≤125 mmol/L, all were 65 years of age or older. Four were men. The onset of the hyponatremia ranged from 6 days to 12 weeks after the start of dosing. Four of these patients were taking a concomitant systemic or inhaled glucocorticoid and 3 were taking an NSAID.
Sex
The incidence of hyponatremia with NOCTIVA was similar in men and women.
Age
Patients 65 years of age and older treated with NOCTIVA had a higher incidence of hyponatremia compared to those younger than 65 years of age (see Table 4).
Table 4: Hyponatremia, Based on Age, in 2 Double-Blind, Placebo-Controlled Clinical Trials in Patients With Nocturia Due to Nocturnal PolyuriaSerum Sodium
Concentrations (mmol/L) | NOCTIVA
1.66 mcg
<65 years
(n=146) | NOCTIVA
1.66 mcg
≥65 years
(n=195) | NOCTIVA
0.83 mcg
<65 years
(n=148) | NOCTIVA
0.83 mcg
≥65 years
(n=206) | Placebo
<65 years
(n=144) | Placebo
≥65 years
(n=205) |
| 130-134 | 14 (9.6%) | 28 (14.4%) | 8 (5.4%) | 25 (12.1%) | 7 (4.9%) | 11 (5.4%) |
| 126-129 | 0 | 7 (3.6%) | 2 (1.4%) | 6 (2.9%) | 0 | 0 |
| ≤125 | 0 | 5 (2.6%) | 0 | 0 | 0 | 1 (0.5%) |