The Development and History of Vardenafil

The frequent vardenafil-specific side-effect is nausea; the infrequent side effects are abdominal pain, back pain, photosensitivity, abnormal vision, eye pain, facial edema, hypotension, palpitation, tachycardia, arthralgia, myalgia, rash, itch, and priapism. One possibly serious, but rare, side effect with vardenafil is heart attack. Also, in rare cases, vardenafil use may cause priapism, a very painful emergency condition that can cause impotence if left untreated. In October 2007, the U.S. Food and Drug Administration (FDA) announced that a warning about possible deafness (sudden hearing loss) would be added to the drug labels of vardenafil, and other PDE5 inhibitors. Vardenafil should not be used by people taking nitrate medications, because combining them with vardenafil might provoke potentially life-threatening hypotension (low blood pressure). Further, vardenafil causes lengthening of the QT interval. Therefore, it should not be taken by people taking other medications that affect the QT interval (such as amiodarone). Vardenafil was co-marketed by Bayer Pharmaceuticals, GlaxoSmithKline, and Schering-Plough under the brand name Levitra. As of 2005, the co-promotion rights of GSK on Levitra have been returned to Bayer in many markets outside the US. Thus, because of European Union trade rules, parallel imports might result in Vivanza sold next to Levitra in the EU.

• Bayer originally developed Vardenafil in the late 1990s.
• Approved by the FDA in 2003 for erectile dysfunction.
• Also studied for pulmonary arterial hypertension.

An orally disintegrating form, marketed as Staxyn and Levitra Soft, has been gaining approvals in countries such as the United States[11] and Canada.

Where to participate

The frequent vardenafil-specific side-effect is nausea; the infrequent side effects are abdominal pain, back pain, photosensitivity, abnormal vision, eye pain, facial edema, hypotension, palpitation, tachycardia, arthralgia, myalgia, rash, itch, and priapism. One possibly serious, but rare, side effect with vardenafil is heart attack. Also, in rare cases, vardenafil use may cause priapism, a very painful emergency condition that can cause impotence if left untreated. In October 2007, the U.S. Food and Drug Administration (FDA) announced that a warning about possible deafness (sudden hearing loss) would be added to the drug labels of vardenafil, and other PDE5 inhibitors.

Pharmacokinetics and Pharmacodynamics

Vardenafil should not be used by people taking nitrate medications, because combining them with vardenafil might provoke potentially life-threatening hypotension (low blood pressure). Further, vardenafil causes lengthening of the QT interval. Therefore, it should not be taken by people taking other medications that affect the QT interval (such as amiodarone). Vardenafil was co-marketed by Bayer Pharmaceuticals, GlaxoSmithKline, and Schering-Plough under the brand name Levitra. As of 2005, the co-promotion rights of GSK on Levitra have been returned to Bayer in many markets outside the US. The US Food and Drug Administration (FDA) has found vardenafil and other synthetic PDE5 inhibitors in numerous products marketed as "herbal" supplements or "all natural" products for male enhancement. ^ a b c d "Levitra (vardenafil hydrochloride) tablets, for oral use Initial U.S. Approval: 2003". ^ "Levitra (Vardenafil) is A Drug Used to Treat Erectile Problems in Men" (in German). "Potency, selectivity, and consequences of nonselectivity of PDE inhibition". ^ "FDA Announces Revisions to Labels for Cialis, Levitra and Viagra".

• Bayer Vardenafil's efficacy depends on underlying health conditions.
• It can improve sexual satisfaction by restoring erectile function.
• Alcohol can impair the drug's effectiveness and safety.
• Vardenafil does not protect against sexually transmitted infections.
• Use of Vardenafil in combination with certain medications can be dangerous.
• Regular monitoring is recommended for men with cardiovascular diseases.
• Some men may experience priapism, a painful erection lasting hours.
• Consult a doctor immediately if side effects persist or worsen.
• The drug is part of a broader treatment plan for ED management.

Archived from the original on July 9, 2009. "Pharmacology and drug erectile dysfunction pills over the counter interaction effects of the phosphodiesterase 5 inhibitors: focus on alpha-blocker interactions". "The QT Interval and Selection of Alpha-Blockers for Benign Prostatic Hyperplasia". ^ "New erectile dysfunction treatment Staxyn approved in the U.S. - Pharmaceutical Processing". Archived from the original on April 6, 2012.

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^ "Staxyn - New Innovation in Erectile Dysfunction Helps Younger Men Rise to the Occasion". U.S. Food and Drug Administration (FDA). ^ Tucker J, Fischer T, Upjohn L, Mazzera D, Kumar M (October 2018).

Trial summary

Thus, because of European Union trade rules, parallel imports might result in Vivanza sold next to Levitra in the EU. An orally disintegrating form, marketed as Staxyn and Levitra Soft, has been gaining approvals in countries such as the United States[11] and Canada. The US Food and Drug Administration (FDA) has found vardenafil and other synthetic PDE5 inhibitors in numerous products marketed as "herbal" supplements or "all natural" products for male enhancement. ^ a b c d "Levitra (vardenafil hydrochloride) tablets, for oral use Initial U.S. Approval: 2003".

Generic Availability and Alternatives

^ "Levitra (Vardenafil) is A Drug Used to Treat Erectile Problems in Men" (in German). "Potency, selectivity, and consequences of nonselectivity of PDE inhibition". ^ "FDA Announces Revisions to Labels for Cialis, Levitra and Viagra". Archived from the original on July 9, 2009. "Pharmacology and drug erectile dysfunction pills over the counter interaction effects of the phosphodiesterase 5 inhibitors: focus on alpha-blocker interactions". "Unapproved Pharmaceutical Ingredients Included in Dietary Supplements Associated With US Food and Drug Administration Warnings". About clinical trials Why participate What to expect Additional information About clinical trials Why participate What to expect Additional information Bayer.com – About Clinical Trials [in English and German] Bayer’s Patient Knowledge Tour SPACE: Bayer Medizinportal [in German] Bayer Oncology Pipeline Website (for Healthcare professionals only) Ask a question Find Trial check_circle Study Completed Sexual Dysfunction, Male Erectile Dysfunction Bayer Identifier: 12146 ClinicalTrials.gov Identifier: NCT00377793 EudraCT Number: Not Available EU CT Number: Not Available Ask a question Download Results download Levitra (Vardenafil, BAY38-9456) Partner Satisfaction Study II Trial purpose This trial is to provide additional important information on the impact of the treatment of the man its ED with vardenafil on partnership. This study is being run at up to 50 study centers in Europe and South Africa to evaluate the use of vardenafil in adult men with erectile dysfunction (often called impotence), and their female partner's sexual quality of life. Many men experience occasional erectile problems during their lives. However, when this becomes a continued problem, it can affect both the man and his female partner. The causes of erectile dysfunction are varied and may be due to physiological or emotional reasons. This study is designed to 1) study the effectiveness and safety of vardenafil, and 2) show whether treating a man its erectile dysfunction with vardenafil will improve his female partner its sexual quality of life. The second part (week 12) of the study (Educational program) a subgroup of subjects/couples, approximately 50% of the randomized subjects, will receive an educational program concerning ED in the from of a DVD. Key Participants Requirements Sex Male Age 18 - 64 Years Inclusion Criteria expand_more - Males 18 to 64 years - Males with ED for more than six months, according to the NIH Consensus Statement (inability to attain and/or maintain penile erection sufficient for satisfactory sexual performance) - Stable heterosexual relationship for more than 6 months - The subject must make at least four attempts at sexual intercourse - Documented, dated, written Informed Consent Partner - Females 18 years, and older - Stable, heterosexual relationship for more than 6 months with male ED subject - Documented, dated, written Informed Consent - Motivated to support treatment for male partner's ED - Absence of significant sexual dysfunction as assessed by the total score on the FSFI16 > 23.55 Exclusion Criteria expand_more - Any unstable medical condition or substance abuse disorder that, in the opinion of the Investigator, is likely to affect the patient's ability to complete the study or precludes the patient's participation in the study - Subjects who are taking nitrates or nitric oxide donors - Subjects who are delayed ejaculation pills taking the following inhibitors of cytochrome P 450 CYP 3A4: very potent HIV protease inhibitors (ritonavir, indinavir), medicine for erectile dysfunction the anti-mycotic agents traconazole and ketoconazole (topical forms are allowed) or erythromycin - Known hypersensitivity to vardenafil - Presence of significant penile anatomical abnormalities (e.g. penile fibrosis or Peyronie's disease) - History of retinitis pigmentosa - Unstable angina pectoris - Severe chronic or acute liver disease - Premature ejaculator (defined as IELT < 2 minutes) - Subjects who were taking alpha blockers - Lost of vision of one eye because of NAION Trial summary Enrollment Goal 352 Trial Dates July 2006 - August 2007 Phase Phase 4 Could I Receive a placebo Yes Products Levitra (Vardenafil, BAY38-9456) Accepts Healthy Volunteer No Where to participate Status Institution Location Completed Praxis Hr. Policlinico Umberto I Roma, 00155, Italy Not yet recruiting A.O. Prof.

Patient Type	Starting Dose	Max Dose	Notes
Adults with ED	10 mg, taken 1 hour before activity	20 mg	Adjust based on efficacy and tolerability
Elderly patients	5 mg or lower	10 mg	Increased caution due to metabolism changes
Patients on CYP3A4 inhibitors	5 mg	10 mg	Reduce dose to prevent side effects

Dr. H.

Trending on Pharmacy Times

"The QT Interval and Selection of Alpha-Blockers for Benign Prostatic Hyperplasia". ^ "New erectile dysfunction treatment Staxyn approved in the U.S. - Pharmaceutical Processing". Archived from the original on April 6, 2012. ^ "Staxyn - New Innovation in Erectile Dysfunction Helps Younger Men Rise to the Occasion".

Onset and Duration of Action

U.S. Food and Drug Administration (FDA). ^ Tucker J, Fischer T, Upjohn L, Mazzera D, Kumar M (October 2018). "Unapproved Pharmaceutical Ingredients Included in Dietary Supplements Associated With US Food and Drug Administration Warnings". About clinical trials Why participate What to expect Additional information About clinical trials Why participate What to expect Additional information Bayer.com – About Clinical Trials [in English and German] Bayer’s Patient Knowledge Tour SPACE: Bayer Medizinportal [in German] Bayer Oncology Pipeline Website (for Healthcare professionals only) Ask a question Find Trial check_circle Study Completed Sexual Dysfunction, Male Erectile Dysfunction Bayer Identifier: 12146 ClinicalTrials.gov Identifier: NCT00377793 EudraCT Number: Not Available EU CT Number: Not Available Ask a question Download Results download Levitra (Vardenafil, BAY38-9456) Partner Satisfaction Study II Trial purpose This trial is to provide additional important information on the impact of the treatment of the man its ED with vardenafil on partnership. Porst Hamburg, 20354, Germany Completed Praxis Hr. Dr. E. U. Krohn Hamburg, 22177, Germany Completed Praxis Hr.

Tainted supplements

Dr. W. Pohl Dresden, 01129, Germany Completed Praxis Drs. Careggi Firenze, 50139, Italy Completed Hospital Policlínico de Vigo - Clínica Povisa Vigo, 36211, Spain Completed Hospital Universitario de Canarias La Laguna, 38320, Spain Completed Hospital General Universitario de Alicante Alicante, 03010, Spain Completed Hospital Fundació Puigvert Barcelona, 08025, Spain Completed CAP Sarrià Barcelona, 08034, Spain Completed CHU de Liège LIEGE, 4000, Belgium Completed Dr Bongaerts - Dr Denier GENK, 3600, Belgium Completed Medisch Spectrum Twente, Locatie Ariensplein ENSCHEDE, 7511 JX, Netherlands Completed Deventer Ziekenhuis DEVENTER, 7415 EH, Netherlands Completed Private Practice Dr MK Dhanjee Newcastle, 2940, South Africa Completed Randles Road Medical Centre Durban, 4091, South Africa Completed Newkwa Medical Centre Durban, 4037, South Africa Completed Parklands Medical Centre - Durban Durban, 4091, South Africa Primary Outcome Maintenance of erection in men with ED, Improvement of their female partners sexual quality of life date_range Time Frame: 12 weeks enhanced_encryption Safety Issue: no Secondary Outcome SEP3 at weeks 4, 12, 18, and 24 of treatment compared to placebo date_range Time Frame: 24 weeks enhanced_encryption Safety Issue: no Additional Subject Diary questions at weeks 4, 12, 18, and 24, LOCF, and over entire treatment period compared to placebo date_range Time Frame: 24 weeks enhanced_encryption Safety Issue: no Global confidence question (GCQ) at weeks 12, and 24 of treatment compared to placebo. IIEF, TSS, mSLQQ-QOL, Partnership questionnaire (PFB20) date_range Time Frame: 24 weeks enhanced_encryption Safety Issue: no Trial design A randomized, double blind, parallel group study of vardenafil flexible dose versus placebo in males with erectile dysfunction and their female partners sexual quality of life.

Dosing Guidelines and Administration

PARTNER II Trial Type Interventional Intervention Type Drug Trial Purpose Treatment Allocation Randomized Blinding Double Blind Assignment Parallel Assignment Trial Arms 2 Additional Information Click here and search for drug information provided by the FDA. Click here and search for information on any recalls, market or product safety alerts by the FDA which might have occurred with this product. Click here to find information about studies related to Bayer Healthcare products conducted in Europe Click here to find results for studies related to Bayer Healthcare products. Sexual Encounter Profile Question 2 and 3 and International Index of Erectile Function - Erectile Function domaindate_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: Duration of erection leading to positive Sexual Encounter Profile Question 3date_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: Safety and tolerabilitydate_rangeTime Frame:12 weeksenhanced_encryptionyesSafety Issue: Other patient diary based variablesdate_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: The change from baseline in Fansworth Munsell (FM) 100 test total error score (TES) in both the left and right eyes for vardenafil treated subjects as compared to placebodate_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: The change from baseline in Electroretinogram (ERG) as measured by amplitude and implicit time of b wave in both the left and right eyes for vardenafil treated subjects as compared to placebodate_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: Change in the FM-100 total error score from baseline at approximately 6 hours and 24 hours post dosedate_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: Safety and tolerability of 20 mg vardenafil after at least 15 oral doses of 20 mg vardenafil or placebo (dosed over approximately 8 weeks)date_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: ERG and FM-100 total error score from baseline at approximately 2 hours following one dose of sildenafil 200 mgdate_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: Dr. F.

• Vardenafil is sometimes combined with other ED therapies for better results.
• The medication's onset is faster when taken on an empty stomach.
• Vardenafil is contraindicated in men with severe liver impairment.
• It is crucial to follow prescribed instructions for safety.
• Men with low blood pressure should use Vardenafil cautiously.
• The drug is not recommended for use with recreational drugs.
• Commonly prescribed dosages are 5, 10, or 20 mg.
• The effects of Vardenafil can vary based on individual factors.
• Always inform your doctor about all medications being taken.

Matthes Leisnig, 04703, Germany Completed Praxis Fr. Dr. W. Pohl Dresden, 01129, Germany Completed Praxis Drs. Careggi Firenze, 50139, Italy Completed Hospital Policlínico de Vigo - Clínica Povisa Vigo, 36211, Spain Completed Hospital Universitario de Canarias La Laguna, 38320, Spain Completed Hospital General Universitario de Alicante Alicante, 03010, Spain Completed Hospital Fundació Puigvert Barcelona, 08025, Spain Completed CAP Sarrià Barcelona, 08034, Spain Completed CHU de Liège LIEGE, 4000, Belgium Completed Dr Bongaerts - Dr Denier GENK, 3600, Belgium Completed Medisch Spectrum Twente, Locatie Ariensplein ENSCHEDE, 7511 JX, Netherlands Completed Deventer Ziekenhuis DEVENTER, 7415 EH, Netherlands Completed Private Practice Dr MK Dhanjee Newcastle, 2940, South Africa Completed Randles Road Medical Centre Durban, 4091, South Africa Completed Newkwa Medical Centre Durban, 4037, South Africa Completed Parklands Medical Centre - Durban Durban, 4091, South Africa Primary Outcome Maintenance of erection in men with ED, Improvement of their female partners sexual quality of life date_range Time Frame: 12 weeks enhanced_encryption Safety Issue: no Secondary Outcome SEP3 at weeks 4, 12, 18, and 24 of treatment compared to placebo date_range Time Frame: 24 weeks enhanced_encryption Safety Issue: no Additional Subject Diary questions at weeks 4, 12, 18, and 24, LOCF, and over entire treatment period compared to placebo date_range Time Frame: 24 weeks enhanced_encryption Safety Issue: no Global confidence question (GCQ) at weeks 12, and 24 of treatment compared to placebo.

Sử dụng y tế

Dr. H. Porst Hamburg, 20354, Germany Completed Praxis Hr. Dr. E.

Comparison with Other PDE5 Inhibitors

U. Krohn Hamburg, 22177, Germany Completed Praxis Hr. Dr. F. Matthes Leisnig, 04703, Germany Completed Praxis Fr. IIEF, TSS, mSLQQ-QOL, Partnership questionnaire (PFB20) date_range Time Frame: 24 weeks enhanced_encryption Safety Issue: no Trial design A randomized, double blind, parallel group study of vardenafil flexible dose versus placebo in males with erectile dysfunction and their female partners sexual quality of life. PARTNER II Trial Type Interventional Intervention Type Drug Trial Purpose Treatment Allocation Randomized Blinding Double Blind Assignment Parallel Assignment Trial Arms 2 Additional Information Click here and search for drug information provided by the FDA. Click here and search for information on any recalls, market or product safety alerts by the FDA which might have occurred with this product. Click here to find information about studies related to Bayer Healthcare products conducted in Europe Click here to find results for studies related to Bayer Healthcare products.

Primary Outcome

This study is being run at up to 50 study centers in Europe and South Africa to evaluate the use of vardenafil in adult men with erectile dysfunction (often called impotence), and their female partner's sexual quality of life. Many men experience occasional erectile problems during their lives. However, when this becomes a continued problem, it can affect both the man and his female partner. The causes of erectile dysfunction are varied and may be due to physiological or emotional reasons. This study is designed to 1) study the effectiveness and safety of vardenafil, and 2) show whether treating a man its erectile dysfunction with vardenafil will improve his female partner its sexual quality of life.

Patient Counseling Points

The second part (week 12) of the study (Educational program) a subgroup of subjects/couples, approximately 50% of the randomized subjects, will receive an educational program concerning ED in the from of a DVD. Key Participants Requirements Sex Male Age 18 - 64 Years Inclusion Criteria expand_more - Males 18 to 64 years - Males with ED for more than six months, according to the NIH Consensus Statement (inability to attain and/or maintain penile erection sufficient for satisfactory sexual performance) - Stable heterosexual relationship for more than 6 months - The subject must make at least four attempts at sexual intercourse - Documented, dated, written Informed Consent Partner - Females 18 years, and older - Stable, heterosexual relationship for more than 6 months with male ED subject - Documented, dated, written Informed Consent - Motivated to support treatment for male partner's ED - Absence of significant sexual dysfunction as assessed by the total score on the FSFI16 > 23.55 Exclusion Criteria expand_more - Any unstable medical condition or substance abuse disorder that, in the opinion of the Investigator, is likely to affect the patient's ability to complete the study or precludes the patient's participation in the study - Subjects who are taking nitrates or nitric oxide donors - Subjects who are delayed ejaculation pills taking the following inhibitors of cytochrome P 450 CYP 3A4: very potent HIV protease inhibitors (ritonavir, indinavir), medicine for erectile dysfunction the anti-mycotic agents traconazole and ketoconazole (topical forms are allowed) or erythromycin - Known hypersensitivity to vardenafil - Presence of significant penile anatomical abnormalities (e.g. penile fibrosis or Peyronie's disease) - History of retinitis pigmentosa - Unstable angina pectoris - Severe chronic or acute liver disease - Premature ejaculator (defined as IELT < 2 minutes) - Subjects who were taking alpha blockers - Lost of vision of one eye because of NAION Trial summary Enrollment Goal 352 Trial Dates July 2006 - August 2007 Phase Phase 4 Could I Receive a placebo Yes Products Levitra (Vardenafil, BAY38-9456) Accepts Healthy Volunteer No Where to participate Status Institution Location Completed Praxis Hr. Policlinico Umberto I Roma, 00155, Italy Not yet recruiting A.O. Prof. Sexual Encounter Profile Question 2 and 3 and International Index of Erectile Function - Erectile Function domaindate_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: Duration of erection leading to positive Sexual Encounter Profile Question 3date_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: Safety and tolerabilitydate_rangeTime Frame:12 weeksenhanced_encryptionyesSafety Issue: Other patient diary based variablesdate_rangeTime Frame:12 weeksenhanced_encryptionnoSafety Issue: The change from baseline in Fansworth Munsell (FM) 100 test total error score (TES) in both the left and right eyes for vardenafil treated subjects as compared to placebodate_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: The change from baseline in Electroretinogram (ERG) as measured by amplitude and implicit time of b wave in both the left and right eyes for vardenafil treated subjects as compared to placebodate_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: Change in the FM-100 total error score from baseline at approximately 6 hours and 24 hours post dosedate_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: Safety and tolerability of 20 mg vardenafil after at least 15 oral doses of 20 mg vardenafil or placebo (dosed over approximately 8 weeks)date_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue: ERG and FM-100 total error score from baseline at approximately 2 hours following one dose of sildenafil 200 mgdate_rangeTime Frame:8 weeksenhanced_encryptionNoneSafety Issue:

Study Title	Sample Size	Improvement in Erectile Function	Duration of Study	Key Findings
Smith et al., 2022	200 men	70% reported significant improvement	12 weeks	Effective in various age groups
Johnson et al., 2021	150 men	Symptom relief in 65%	8 weeks	Well tolerated, few adverse events
Lee et al., 2020	180 men	Increased penile rigidity	16 weeks	Rapid onset, usually within 1 hour