Lengthy-term use of sure progestogen medicine could increase threat of intracranial meningioma

Extended use of sure progestogen hormone medicine is related to an elevated threat of growing a sort of mind tumor generally known as an intracranial meningioma, finds a research from France printed by The BMJ as we speak.

The researchers say this research is the primary to evaluate the chance related to progestogens utilized by hundreds of thousands of ladies worldwide, and additional research are urgently wanted to realize a greater understanding of this threat.

Progestogens are just like the pure hormone progesterone, that are extensively used for gynaecological circumstances corresponding to endometriosis and polycystic ovary syndrome, and in menopausal hormone remedy and contraceptives.

Meningiomas are largely non-cancerous tumours within the layers of tissue (meninges) that cowl the mind and spinal wire. Components corresponding to older age, feminine intercourse, and publicity to 3 high-dose progestogens (nomegestrol, chlormadinone, and cyproterone acetate) are already identified to extend the chance of meningioma.

However there are various different progestogens for which the chance of meningioma related to their use has not been estimated individually.

To handle this information hole, researchers got down to consider the actual life threat of intracranial meningioma requiring surgical procedure in girls related to use of a number of progestogens with totally different routes of administration.

They used information from the French nationwide well being information system (SNDS) for 18,061 girls (common age 58) who underwent intracranial meningioma surgical procedure from 2009-18.

Every case was matched to 5 management girls with out intracranial meningioma (whole 90,305) by yr of delivery and space of residence.

The progestogens examined have been progesterone, hydroxyprogesterone, dydrogesterone, medrogestone, medroxyprogesterone acetate, promegestone, dienogest, and levonorgestrel intrauterine techniques.

For every progestogen, use was outlined as at the very least one prescription within the yr earlier than hospital admission or inside 3-5 years for levonorgestrel intrauterine techniques.

Use of at the very least one of many three high-dose progestogens identified to extend the chance of meningioma within the 3 years earlier than hospital admission was additionally recorded to minimise bias.

After taking account of different probably influential components, extended use (a yr or extra) of medrogestone was related to a 4.1-fold elevated threat of intracranial meningioma requiring surgical procedure. Extended use of medroxyprogesterone acetate injection was related to a 5.6-fold elevated threat, and extended use of promegestone was linked to a 2.7-fold elevated threat.

There seemed to be no such threat for lower than one yr of use of those progestogens. 

As anticipated, there was additionally an extra threat of meningioma for girls uncovered to chlormadinone acetate, nomegestrol acetate, and cyproterone acetate, all of that are identified to extend the chance of meningioma.

Nevertheless, outcomes confirmed no extra threat of meningioma for progesterone, dydrogesterone, or the extensively used hormonal intrauterine techniques, whatever the dose of levonorgestrel they contained.

No conclusions might be drawn about dienogest or hydroxyprogesterone because the variety of uncovered people was too small. 

That is an observational research so cannot set up trigger and impact, and the authors acknowledge that the SNDS database lacked info on all of the scientific particulars and medical indications for which progestogens are prescribed. Nor have been they capable of account for genetic predisposition and publicity to excessive dose radiation.

Nevertheless, they are saying, on condition that medroxyprogesterone acetate is estimated for use for contraception by 74 million girls worldwide, the variety of attributable meningiomas could also be probably excessive.

Additional research utilizing different sources of information are urgently wanted to realize a greater understanding of this threat, they conclude.