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The following are discussed in more detail in other sections of the labeling:
- Prolonged Erection and Priapism [see WARNINGS AND PRECAUTIONS]
- Penile Fibrosis [see WARNINGS AND PRECAUTIONS]
Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, 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.
CAVERJECT IMPULSE was evaluated in 87 patients in an open-label crossover study of 6 weeks treatment duration that compared the formulation of alprostadil for injection contained in CAVERJECT IMPULSE with the formulation contained in CAVERJECT Sterile Powder. Doses used in this study ranged from 2.5 mcg to 20 mcg. Adverse reactions reported for the CAVERJECT IMPULSE formulation included: penis disorder (4.6%), prolonged erection (1.1%), injection site erythema (1.1%), rash (1.1%), dizziness (1.1%), and hematospermia (1.1%). Penis disorder included penile pain, post-injection pain, and pain with erection.
CAVERJECT IMPULSE was also evaluated in 63 patients in a single-dose, double-blind, crossover study that compared CAVERJECT IMPULSE with CAVERJECT Sterile Powder. Doses used in this study ranged from 2.5 mcg to 20 mcg. Adverse reactions reported for the CAVERJECT IMPULSE formulation included: penile pain (1.6%) and pruritis (1.6%).
In addition to the adverse reactions observed for CAVERJECT IMPULSE in these two studies, the following adverse reactions have been reported in clinical studies of CAVERJECT Sterile Powder:
Local Adverse Reactions
Local adverse reactions derived from 1861 patients in clinical studies of CAVERJECT Sterile Powder, including an 18-month, open-label study, are shown in Table 1.
Table 1: Local Adverse Reactions Reported by ≥
1% of Patients Treated with CAVERJECT Sterile Powder for up to 18 Months
|Injection site hematoma||3%|
|Injection site ecchymosis||2%|
|* Penis disorder includes: numbness, irritation, sensitivity, pruritus, erythema, skin tear, discoloration, itching.|
The following local adverse reactions were reported in < 1% of patients: injection site hemorrhage, injection site inflammation, injection site itching, injection site swelling, injection site edema, urethral bleeding, penile warmth, numbness, irritation, sensitivity, pruritus, erythema, painful erection, and abnormal ejaculation.
In these studies, no local adverse reactions were reported in the 294 patients who received placebo, except for penile pain (2%).
Penile Pain: In the majority of the cases, penile pain was rated mild or moderate in intensity. Three percent of patients discontinued treatment because of penile pain
Prolonged Erection/Priapism: Prolonged erection was defined as an erection that lasted for 4 to 6 hours; priapism was defined as an erection that lasted 6 hours or longer. In clinical studies, the frequency of prolonged erection after intracavernosal administration of CAVERJECT Sterile Powder was 4%, while the frequency of priapism was 0.4% [see WARNINGS AND PRECAUTIONS].
Systemic Adverse Reactions: Systemic adverse reactions reported by ≥ 1% of subjects in clinical studies of CAVERJECT
Sterile Powder included: dizziness (1%).
The following systemic adverse reactions, were reported in < 1% of patients: testicular pain, scrotal edema, hematuria, pelvic pain, hypotension, vasodilation, vasovagal reaction, diaphoresis, rash, and non-application site pruritus. Three patients (0.2%) discontinued due to symptomatic hypotension. No systemic adverse reactions were reported in the 294 patients who received placebo.
The following additional adverse reactions have been reported: device malfunction/failure, drug ineffective and drug effect decreased.
Read the Caverject Impulse (alprostadil dual chamber system for injection) Side Effects Center for a complete guide to possible side effects
The potential for pharmacokinetic drug-drug interactions between alprostadil and other agents administered orally or intracavernosally has not been formally studied [see WARNINGS AND PRECAUTIONS].This monograph has been modified to include the generic and brand name in many instances.
Last reviewed on RxList: 5/16/2016
Additional Caverject Impulse Information
Caverject Impulse - User Reviews
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