and HIV Treatments


Molecule

Indication

ARV

Cytochrome

Effect

Action

All
 
PI

3A4/5
 
Specialist advise

Cyclophosphamide

Breast

NNRTIs

2B6, 2C9, 3A4

Increase toxicity and efficacy

Monitoring

Docetaxel

Breast, prostate

NNRTIs

3A4

Increasing toxicity

To avoid – change taxane

Erlotinib/gefitinib

Lung

NNRTIs

3A4

Toxicity

Avoid/monitoring

Etoposide

Lung, neuroendocrine

NNRTIs

3A4, UGT1A1

Toxicity

Monitoring

Everolimus

Renal, breast

NNRTIs

3A4

Toxicity

Avoid

Ifosfamide

Sarcoma

NNRTIs

3A4, 2B6

Decreasing efficacy


Imatinib

LMC, GIST

NNRTIs

3A4, 1A2, 2D6, 2C9, and 2C19

Toxicity

Monitoring

Irinotecan

Colorectal

NNRTIs

3A4

Toxicity

Monitoring

Lapatinib

Breast

NNRTIs

3A4

Toxicity

Monitoring

Methotrexate

Leukemia

NNRTIs

NRTIs
  
Contraindicated/monitoring

Paclitaxel

Breast, ovarian, lung, cervical, Kaposi sarcoma

NNRTIs

2C8, 3A4

Toxicity

Monitoring

Tamoxifen

Breast

NNRTIs

2D6, 3A4

Decreasing efficacy

Monitoring

Vinblastine

Lymphoma

NNRTIs

3A4

Toxicity

Monitoring

Capecitabine/5Fluorouracil

Breast, colorectal

NRTIs
 
Toxicity

Monitoring

Platine

Lymphoma, lung, cervical, ovarian

NRTIs
 
Neurotoxicity

Monitoring


PI protease inhibitors, NNRTIs non-nucleoside reverse-transcriptase inhibitors, NRTIs nucleoside reverse-transcriptase inhibitors



In addition, these drug interactions also concern supportive care treatment and the use of analgesics, antiemetics, and corticoids that are possibly needed in cancer treatments.

Third, opportunist infections, such as pneumocystosis and toxoplasmosis, and their preventive treatments should be considered.

Finally, treatment compliance and follow-up should be adapted to each patient, so multidisciplinary staff such as CANCER VIH group in France, consultation, and supportive care are essential [24].




3 HIV and Cancer Treatments in Low- and Middle-Income Countries



3.1 Epidemiology


Based on the WHO data, 24.7 million people live with HIV in sub-Saharan Africa (SSA) in 2013. 70 % of new HIV infection in the world is in SSA.

In 2013, more than 12.9 million people with HIV are treated by a HAART worldwide of which 11.7 million in LMICs.

We can obviously consider HIV like a worldwide public health problem. So by referring causes of death in PLHIV in high-income countries, cancer in LMICs must be considered as a priority in HIV patients care.


3.2 HIV and Cancer


Many data concern epidemiology of HIV-associated cancers from high-income countries. Our knowledge of the epidemiology of HIV-associated cancers in LMICs is limited. The reasons include weaknesses in healthcare infrastructure for diagnosing malignancies and limited epidemiological expertise in these countries. Moreover, many cancers are probably undiagnosed or untreated, so comprehensive information from cancer registries cannot be obtained [6].

Thus, we rely on high-income countries epidemiological profile and evolution in HIV-associated malignancies to assume evolution in low-middle income countries.

By significantly increasing the access of PLHIV in low- and middle-income countries to HAART [25], life expectancy and incidence of selected malignancies in an older population have increased [26, 27], and mortality due to infectious complications of HIV has decreased.


3.3 Treatment in HIV-Associated Cancer


Treatment of PLHIV must be optimal in controlling HIV with a low viral replication and a higher number of CD4 cells, such as recommended in the WHO guidelines [9].

Cancer treatment will depend on tumor type and international recommendation guidelines such as described in the previous chapters.

Problems of drug interactions are the same as in high-income countries, and a special care is needed. The challenge will be in accessibility in specific treatments and their costs.

Because of a higher incidence of associated infections, it is important to test and treat them, particularly for HBV and tuberculosis, and to prevent the strongyloïdes hyperinfection with ivermectin under corticosteroid therapy, commonly used in cancer treatments.

Hence, developing prevention, early diagnoses, and cancer infrastructure might be a key to develop a better patient care. Unfortunately, cancer infrastructures are underdeveloped particularly in SSA [28]. Adebamowo et al. study suggests that the infrastructure for cancer should comprise four elements: physical infrastructure, qualified staff, supportive policies, and supportive laws [6]. Established HIV care infrastructure in SSA would be a base to support the training of cancer care professionals, but efforts are needed to increase the human capacity for patients care with HIV-associated malignancies. Partnerships between international and US institutions have already begun and must be continued to address this need [29].

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Sep 20, 2016 | Posted by in HEMATOLOGY | Comments Off on and HIV Treatments

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