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It is estimated that there are 1.1 million people in the United States living with HIV and that 15% of those people do not know they have HIV. Although the number of new cases reported each year is decreasing, there were still 38,281 new diagnoses in 2017. New cases might be decreasing overall, but the incidence of HIV is rising in some groups including people aged 25-29 years old and American Indian/Alaska Native and Asian populations. In addition, HIV disproportionately affects men who have sex with men, black/African American populations, and Hispanic/Latino populations, according to the USPSTF statement.
Given the prevalence of HIV and rising new cases in certain groups, it is thought that preexposure prophylaxis (PrEP) is being underutilized. The CDC reported that, in 2015, 1.2 million people were candidates for PrEP, but in 2017, only 100,282 people were using PrEP. The USPSTF performed a meta-analysis of 12 RCTs comparing rates of HIV infection in groups treated with PrEP versus those treated with placebo or no treatment and found a risk ratio of 0.46 (95% confidence interval, 0.33-0.66) and absolute risk reduction of –2% (95% CI, –2.8% to –1.2%) after 4 months and 4 years.
With this epidemiologic data and the meta-analysis, the USPSTF offered the following recommendations.
Screening
In order to decrease the rates of transmission and incidence of HIV infection, we must appropriately identify those who would be good candidates for PrEP. That begins with taking a complete and thorough sexual and injection drug use history in a manner that does not make patients feel stigmatized or discriminated against. The USPSTF recommends screening for HIV infection in patients aged 15-65 years old, in younger and older patients who have increased risk factors, and all pregnant patients. PrEP is not an appropriate choice in those who have HIV because it can lead to drug resistance.
When screening for HIV and considering starting PrEP, it is recommended that clinicians also test for kidney function, hepatitis B and C, other STIs, and pregnancy. The USPSTF suggests that the following groups be considered for PrEP given the increased risk of HIV infection:
- Men who have sex with men, are sexually active, and have one of these additional characteristics: a serodiscordant sex partner, inconsistent use of condoms during receptive or insertive anal sex, or infection with syphilis, gonorrhea, or chlamydia in the past 6 months.
- Heterosexual men or women who are sexually active with one or more of these additional characteristics: a serodiscordant sex partner, inconsistent use of condoms during sex with a partner whose HIV status is unknown and who is at high risk, and infection with syphilis or gonorrhea in the past 6 months.
- Patients who inject drugs with one or more of the following characteristics: shared use of drug injection equipment and risk of sexual acquisition (as in the categories above).
The USPSTF also notes that those who engage in transactional sex (for money, drugs, or housing) and transgender patients are at an increased risk of HIV infection.
Treatment
The only FDA approved treatment for the prevention HIV infection is once daily oral combined tenofovir disoproxil fumarate and emtricitabine; however, some studies have found that tenofovir disproxil fumarate monotherapy is also effective. Considering these trials, the CDC has suggested that tenofovir disoproxil fumarate monotherapy can be used as an alternative for men and women at high risk and those who inject drugs.
Tenofovir disoproxil fumarate/emtricitabine can also be used in pregnant patients, however the USPSTF notes that no PrEP trials included pregnant women. Additionally, tenofovir disoproxil fumarate/emtricitabine can be used in adolescents who weigh more than 35 kg. It is unknown how much time it takes to achieve protection against HIV infection after starting PrEP, and there is no clear timeline for how long patients should be on PrEP. Patients may discontinue medication because of preference, decreased risk of HIV exposure, or side effects.
Side effects include renal adverse events (serum creatinine rise), gastrointestinal adverse events (mostly nausea), and bone loss and increased fracture risk, although none were statistically significant when PrEP and placebo groups were compared. The USPSTF’s recommendations note that the effectiveness of PrEP is dependent on medication adherence.
While PrEP is an important part of preventing HIV, it is always important to counsel patients on other ways to reduce risk. The USPSTF notes that consistent condom use reduces the risk of HIV infection by around 80% in addition to reducing the risk of other STIs. All trials studied by the USPSTF for these recommendations included counseling on behavior, adherence, and condom use.
Bottom Line
It is estimated that 1.1 million Americans are living with HIV and 15% are unaware that they are positive for HIV. Overall cases of new HIV diagnoses are down, but they are rising in some groups. Every patient should be screened for high-risk sexual behavior and drug use with a thorough history. Patients aged 15-65 years should be screened for HIV. If patients are negative for HIV, but participate in high-risk sexual behaviors and drug injection, they should be offered PrEP along with counseling on, medication adherence, condom use, and reduction of high-risk behaviors.
Dr. Skolnik is professor of family and community medicine at Jefferson Medical College, Philadelphia, and an associate director of the family medicine residency program at Abington (Pa.) Jefferson Health. Dr. Sprogell is a second-year resident in the Family Medicine Residency Program at Abington Jefferson Health
Reference
Owens DK et al. “Preexposure prophylaxis for the prevention of HIV infection: US Preventive Services Task Force recommendation statement.” JAMA. 2019 Jun 11;321(22):2203-13.
It is estimated that there are 1.1 million people in the United States living with HIV and that 15% of those people do not know they have HIV. Although the number of new cases reported each year is decreasing, there were still 38,281 new diagnoses in 2017. New cases might be decreasing overall, but the incidence of HIV is rising in some groups including people aged 25-29 years old and American Indian/Alaska Native and Asian populations. In addition, HIV disproportionately affects men who have sex with men, black/African American populations, and Hispanic/Latino populations, according to the USPSTF statement.
Given the prevalence of HIV and rising new cases in certain groups, it is thought that preexposure prophylaxis (PrEP) is being underutilized. The CDC reported that, in 2015, 1.2 million people were candidates for PrEP, but in 2017, only 100,282 people were using PrEP. The USPSTF performed a meta-analysis of 12 RCTs comparing rates of HIV infection in groups treated with PrEP versus those treated with placebo or no treatment and found a risk ratio of 0.46 (95% confidence interval, 0.33-0.66) and absolute risk reduction of –2% (95% CI, –2.8% to –1.2%) after 4 months and 4 years.
With this epidemiologic data and the meta-analysis, the USPSTF offered the following recommendations.
Screening
In order to decrease the rates of transmission and incidence of HIV infection, we must appropriately identify those who would be good candidates for PrEP. That begins with taking a complete and thorough sexual and injection drug use history in a manner that does not make patients feel stigmatized or discriminated against. The USPSTF recommends screening for HIV infection in patients aged 15-65 years old, in younger and older patients who have increased risk factors, and all pregnant patients. PrEP is not an appropriate choice in those who have HIV because it can lead to drug resistance.
When screening for HIV and considering starting PrEP, it is recommended that clinicians also test for kidney function, hepatitis B and C, other STIs, and pregnancy. The USPSTF suggests that the following groups be considered for PrEP given the increased risk of HIV infection:
- Men who have sex with men, are sexually active, and have one of these additional characteristics: a serodiscordant sex partner, inconsistent use of condoms during receptive or insertive anal sex, or infection with syphilis, gonorrhea, or chlamydia in the past 6 months.
- Heterosexual men or women who are sexually active with one or more of these additional characteristics: a serodiscordant sex partner, inconsistent use of condoms during sex with a partner whose HIV status is unknown and who is at high risk, and infection with syphilis or gonorrhea in the past 6 months.
- Patients who inject drugs with one or more of the following characteristics: shared use of drug injection equipment and risk of sexual acquisition (as in the categories above).
The USPSTF also notes that those who engage in transactional sex (for money, drugs, or housing) and transgender patients are at an increased risk of HIV infection.
Treatment
The only FDA approved treatment for the prevention HIV infection is once daily oral combined tenofovir disoproxil fumarate and emtricitabine; however, some studies have found that tenofovir disproxil fumarate monotherapy is also effective. Considering these trials, the CDC has suggested that tenofovir disoproxil fumarate monotherapy can be used as an alternative for men and women at high risk and those who inject drugs.
Tenofovir disoproxil fumarate/emtricitabine can also be used in pregnant patients, however the USPSTF notes that no PrEP trials included pregnant women. Additionally, tenofovir disoproxil fumarate/emtricitabine can be used in adolescents who weigh more than 35 kg. It is unknown how much time it takes to achieve protection against HIV infection after starting PrEP, and there is no clear timeline for how long patients should be on PrEP. Patients may discontinue medication because of preference, decreased risk of HIV exposure, or side effects.
Side effects include renal adverse events (serum creatinine rise), gastrointestinal adverse events (mostly nausea), and bone loss and increased fracture risk, although none were statistically significant when PrEP and placebo groups were compared. The USPSTF’s recommendations note that the effectiveness of PrEP is dependent on medication adherence.
While PrEP is an important part of preventing HIV, it is always important to counsel patients on other ways to reduce risk. The USPSTF notes that consistent condom use reduces the risk of HIV infection by around 80% in addition to reducing the risk of other STIs. All trials studied by the USPSTF for these recommendations included counseling on behavior, adherence, and condom use.
Bottom Line
It is estimated that 1.1 million Americans are living with HIV and 15% are unaware that they are positive for HIV. Overall cases of new HIV diagnoses are down, but they are rising in some groups. Every patient should be screened for high-risk sexual behavior and drug use with a thorough history. Patients aged 15-65 years should be screened for HIV. If patients are negative for HIV, but participate in high-risk sexual behaviors and drug injection, they should be offered PrEP along with counseling on, medication adherence, condom use, and reduction of high-risk behaviors.
Dr. Skolnik is professor of family and community medicine at Jefferson Medical College, Philadelphia, and an associate director of the family medicine residency program at Abington (Pa.) Jefferson Health. Dr. Sprogell is a second-year resident in the Family Medicine Residency Program at Abington Jefferson Health
Reference
Owens DK et al. “Preexposure prophylaxis for the prevention of HIV infection: US Preventive Services Task Force recommendation statement.” JAMA. 2019 Jun 11;321(22):2203-13.
It is estimated that there are 1.1 million people in the United States living with HIV and that 15% of those people do not know they have HIV. Although the number of new cases reported each year is decreasing, there were still 38,281 new diagnoses in 2017. New cases might be decreasing overall, but the incidence of HIV is rising in some groups including people aged 25-29 years old and American Indian/Alaska Native and Asian populations. In addition, HIV disproportionately affects men who have sex with men, black/African American populations, and Hispanic/Latino populations, according to the USPSTF statement.
Given the prevalence of HIV and rising new cases in certain groups, it is thought that preexposure prophylaxis (PrEP) is being underutilized. The CDC reported that, in 2015, 1.2 million people were candidates for PrEP, but in 2017, only 100,282 people were using PrEP. The USPSTF performed a meta-analysis of 12 RCTs comparing rates of HIV infection in groups treated with PrEP versus those treated with placebo or no treatment and found a risk ratio of 0.46 (95% confidence interval, 0.33-0.66) and absolute risk reduction of –2% (95% CI, –2.8% to –1.2%) after 4 months and 4 years.
With this epidemiologic data and the meta-analysis, the USPSTF offered the following recommendations.
Screening
In order to decrease the rates of transmission and incidence of HIV infection, we must appropriately identify those who would be good candidates for PrEP. That begins with taking a complete and thorough sexual and injection drug use history in a manner that does not make patients feel stigmatized or discriminated against. The USPSTF recommends screening for HIV infection in patients aged 15-65 years old, in younger and older patients who have increased risk factors, and all pregnant patients. PrEP is not an appropriate choice in those who have HIV because it can lead to drug resistance.
When screening for HIV and considering starting PrEP, it is recommended that clinicians also test for kidney function, hepatitis B and C, other STIs, and pregnancy. The USPSTF suggests that the following groups be considered for PrEP given the increased risk of HIV infection:
- Men who have sex with men, are sexually active, and have one of these additional characteristics: a serodiscordant sex partner, inconsistent use of condoms during receptive or insertive anal sex, or infection with syphilis, gonorrhea, or chlamydia in the past 6 months.
- Heterosexual men or women who are sexually active with one or more of these additional characteristics: a serodiscordant sex partner, inconsistent use of condoms during sex with a partner whose HIV status is unknown and who is at high risk, and infection with syphilis or gonorrhea in the past 6 months.
- Patients who inject drugs with one or more of the following characteristics: shared use of drug injection equipment and risk of sexual acquisition (as in the categories above).
The USPSTF also notes that those who engage in transactional sex (for money, drugs, or housing) and transgender patients are at an increased risk of HIV infection.
Treatment
The only FDA approved treatment for the prevention HIV infection is once daily oral combined tenofovir disoproxil fumarate and emtricitabine; however, some studies have found that tenofovir disproxil fumarate monotherapy is also effective. Considering these trials, the CDC has suggested that tenofovir disoproxil fumarate monotherapy can be used as an alternative for men and women at high risk and those who inject drugs.
Tenofovir disoproxil fumarate/emtricitabine can also be used in pregnant patients, however the USPSTF notes that no PrEP trials included pregnant women. Additionally, tenofovir disoproxil fumarate/emtricitabine can be used in adolescents who weigh more than 35 kg. It is unknown how much time it takes to achieve protection against HIV infection after starting PrEP, and there is no clear timeline for how long patients should be on PrEP. Patients may discontinue medication because of preference, decreased risk of HIV exposure, or side effects.
Side effects include renal adverse events (serum creatinine rise), gastrointestinal adverse events (mostly nausea), and bone loss and increased fracture risk, although none were statistically significant when PrEP and placebo groups were compared. The USPSTF’s recommendations note that the effectiveness of PrEP is dependent on medication adherence.
While PrEP is an important part of preventing HIV, it is always important to counsel patients on other ways to reduce risk. The USPSTF notes that consistent condom use reduces the risk of HIV infection by around 80% in addition to reducing the risk of other STIs. All trials studied by the USPSTF for these recommendations included counseling on behavior, adherence, and condom use.
Bottom Line
It is estimated that 1.1 million Americans are living with HIV and 15% are unaware that they are positive for HIV. Overall cases of new HIV diagnoses are down, but they are rising in some groups. Every patient should be screened for high-risk sexual behavior and drug use with a thorough history. Patients aged 15-65 years should be screened for HIV. If patients are negative for HIV, but participate in high-risk sexual behaviors and drug injection, they should be offered PrEP along with counseling on, medication adherence, condom use, and reduction of high-risk behaviors.
Dr. Skolnik is professor of family and community medicine at Jefferson Medical College, Philadelphia, and an associate director of the family medicine residency program at Abington (Pa.) Jefferson Health. Dr. Sprogell is a second-year resident in the Family Medicine Residency Program at Abington Jefferson Health
Reference
Owens DK et al. “Preexposure prophylaxis for the prevention of HIV infection: US Preventive Services Task Force recommendation statement.” JAMA. 2019 Jun 11;321(22):2203-13.